^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1) // SPDX-License-Identifier: GPL-2.0-only
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3) * A framebuffer driver for VBE 2.0+ compliant video cards
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 5) * (c) 2007 Michal Januszewski <spock@gentoo.org>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 6) * Loosely based upon the vesafb driver.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 7) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 8) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 9)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10) #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12) #include <linux/init.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13) #include <linux/module.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14) #include <linux/moduleparam.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15) #include <linux/skbuff.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16) #include <linux/timer.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17) #include <linux/completion.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18) #include <linux/connector.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19) #include <linux/random.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20) #include <linux/platform_device.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21) #include <linux/limits.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22) #include <linux/fb.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23) #include <linux/io.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24) #include <linux/mutex.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25) #include <linux/slab.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26) #include <video/edid.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27) #include <video/uvesafb.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28) #ifdef CONFIG_X86
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29) #include <video/vga.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31) #include "edid.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33) static struct cb_id uvesafb_cn_id = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34) .idx = CN_IDX_V86D,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35) .val = CN_VAL_V86D_UVESAFB
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37) static char v86d_path[PATH_MAX] = "/sbin/v86d";
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 38) static char v86d_started; /* has v86d been started by uvesafb? */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 39)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 40) static const struct fb_fix_screeninfo uvesafb_fix = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 41) .id = "VESA VGA",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 42) .type = FB_TYPE_PACKED_PIXELS,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 43) .accel = FB_ACCEL_NONE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 44) .visual = FB_VISUAL_TRUECOLOR,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 45) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 46)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 47) static int mtrr = 3; /* enable mtrr by default */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 48) static bool blank = true; /* enable blanking by default */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 49) static int ypan = 1; /* 0: scroll, 1: ypan, 2: ywrap */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 50) static bool pmi_setpal = true; /* use PMI for palette changes */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 51) static bool nocrtc; /* ignore CRTC settings */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 52) static bool noedid; /* don't try DDC transfers */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 53) static int vram_remap; /* set amt. of memory to be used */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 54) static int vram_total; /* set total amount of memory */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 55) static u16 maxclk; /* maximum pixel clock */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 56) static u16 maxvf; /* maximum vertical frequency */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 57) static u16 maxhf; /* maximum horizontal frequency */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 58) static u16 vbemode; /* force use of a specific VBE mode */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 59) static char *mode_option;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 60) static u8 dac_width = 6;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 61)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 62) static struct uvesafb_ktask *uvfb_tasks[UVESAFB_TASKS_MAX];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 63) static DEFINE_MUTEX(uvfb_lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 64)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 65) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 66) * A handler for replies from userspace.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 67) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 68) * Make sure each message passes consistency checks and if it does,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 69) * find the kernel part of the task struct, copy the registers and
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 70) * the buffer contents and then complete the task.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 71) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 72) static void uvesafb_cn_callback(struct cn_msg *msg, struct netlink_skb_parms *nsp)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 73) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 74) struct uvesafb_task *utask;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 75) struct uvesafb_ktask *task;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 76)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 77) if (!capable(CAP_SYS_ADMIN))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 78) return;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 79)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 80) if (msg->seq >= UVESAFB_TASKS_MAX)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 81) return;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 82)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 83) mutex_lock(&uvfb_lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 84) task = uvfb_tasks[msg->seq];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 85)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 86) if (!task || msg->ack != task->ack) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 87) mutex_unlock(&uvfb_lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 88) return;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 89) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 90)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 91) utask = (struct uvesafb_task *)msg->data;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 92)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 93) /* Sanity checks for the buffer length. */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 94) if (task->t.buf_len < utask->buf_len ||
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 95) utask->buf_len > msg->len - sizeof(*utask)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 96) mutex_unlock(&uvfb_lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 97) return;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 98) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 99)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 100) uvfb_tasks[msg->seq] = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 101) mutex_unlock(&uvfb_lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 102)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 103) memcpy(&task->t, utask, sizeof(*utask));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 104)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 105) if (task->t.buf_len && task->buf)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 106) memcpy(task->buf, utask + 1, task->t.buf_len);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 107)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 108) complete(task->done);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 109) return;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 110) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 111)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 112) static int uvesafb_helper_start(void)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 113) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 114) char *envp[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 115) "HOME=/",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 116) "PATH=/sbin:/bin",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 117) NULL,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 118) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 119)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 120) char *argv[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 121) v86d_path,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 122) NULL,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 123) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 124)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 125) return call_usermodehelper(v86d_path, argv, envp, UMH_WAIT_PROC);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 126) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 127)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 128) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 129) * Execute a uvesafb task.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 130) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 131) * Returns 0 if the task is executed successfully.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 132) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 133) * A message sent to the userspace consists of the uvesafb_task
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 134) * struct and (optionally) a buffer. The uvesafb_task struct is
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 135) * a simplified version of uvesafb_ktask (its kernel counterpart)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 136) * containing only the register values, flags and the length of
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 137) * the buffer.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 138) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 139) * Each message is assigned a sequence number (increased linearly)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 140) * and a random ack number. The sequence number is used as a key
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 141) * for the uvfb_tasks array which holds pointers to uvesafb_ktask
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 142) * structs for all requests.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 143) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 144) static int uvesafb_exec(struct uvesafb_ktask *task)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 145) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 146) static int seq;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 147) struct cn_msg *m;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 148) int err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 149) int len = sizeof(task->t) + task->t.buf_len;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 150)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 151) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 152) * Check whether the message isn't longer than the maximum
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 153) * allowed by connector.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 154) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 155) if (sizeof(*m) + len > CONNECTOR_MAX_MSG_SIZE) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 156) pr_warn("message too long (%d), can't execute task\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 157) (int)(sizeof(*m) + len));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 158) return -E2BIG;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 159) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 160)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 161) m = kzalloc(sizeof(*m) + len, GFP_KERNEL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 162) if (!m)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 163) return -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 164)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 165) init_completion(task->done);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 166)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 167) memcpy(&m->id, &uvesafb_cn_id, sizeof(m->id));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 168) m->seq = seq;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 169) m->len = len;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 170) m->ack = prandom_u32();
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 171)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 172) /* uvesafb_task structure */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 173) memcpy(m + 1, &task->t, sizeof(task->t));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 174)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 175) /* Buffer */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 176) memcpy((u8 *)(m + 1) + sizeof(task->t), task->buf, task->t.buf_len);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 177)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 178) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 179) * Save the message ack number so that we can find the kernel
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 180) * part of this task when a reply is received from userspace.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 181) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 182) task->ack = m->ack;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 183)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 184) mutex_lock(&uvfb_lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 185)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 186) /* If all slots are taken -- bail out. */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 187) if (uvfb_tasks[seq]) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 188) mutex_unlock(&uvfb_lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 189) err = -EBUSY;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 190) goto out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 191) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 192)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 193) /* Save a pointer to the kernel part of the task struct. */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 194) uvfb_tasks[seq] = task;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 195) mutex_unlock(&uvfb_lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 196)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 197) err = cn_netlink_send(m, 0, 0, GFP_KERNEL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 198) if (err == -ESRCH) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 199) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 200) * Try to start the userspace helper if sending
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 201) * the request failed the first time.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 202) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 203) err = uvesafb_helper_start();
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 204) if (err) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 205) pr_err("failed to execute %s\n", v86d_path);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 206) pr_err("make sure that the v86d helper is installed and executable\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 207) } else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 208) v86d_started = 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 209) err = cn_netlink_send(m, 0, 0, gfp_any());
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 210) if (err == -ENOBUFS)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 211) err = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 212) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 213) } else if (err == -ENOBUFS)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 214) err = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 215)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 216) if (!err && !(task->t.flags & TF_EXIT))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 217) err = !wait_for_completion_timeout(task->done,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 218) msecs_to_jiffies(UVESAFB_TIMEOUT));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 219)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 220) mutex_lock(&uvfb_lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 221) uvfb_tasks[seq] = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 222) mutex_unlock(&uvfb_lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 223)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 224) seq++;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 225) if (seq >= UVESAFB_TASKS_MAX)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 226) seq = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 227) out:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 228) kfree(m);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 229) return err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 230) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 231)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 232) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 233) * Free a uvesafb_ktask struct.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 234) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 235) static void uvesafb_free(struct uvesafb_ktask *task)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 236) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 237) if (task) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 238) kfree(task->done);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 239) kfree(task);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 240) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 241) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 242)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 243) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 244) * Prepare a uvesafb_ktask struct to be used again.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 245) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 246) static void uvesafb_reset(struct uvesafb_ktask *task)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 247) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 248) struct completion *cpl = task->done;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 249)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 250) memset(task, 0, sizeof(*task));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 251) task->done = cpl;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 252) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 253)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 254) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 255) * Allocate and prepare a uvesafb_ktask struct.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 256) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 257) static struct uvesafb_ktask *uvesafb_prep(void)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 258) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 259) struct uvesafb_ktask *task;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 260)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 261) task = kzalloc(sizeof(*task), GFP_KERNEL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 262) if (task) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 263) task->done = kzalloc(sizeof(*task->done), GFP_KERNEL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 264) if (!task->done) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 265) kfree(task);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 266) task = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 267) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 268) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 269) return task;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 270) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 271)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 272) static void uvesafb_setup_var(struct fb_var_screeninfo *var,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 273) struct fb_info *info, struct vbe_mode_ib *mode)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 274) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 275) struct uvesafb_par *par = info->par;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 276)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 277) var->vmode = FB_VMODE_NONINTERLACED;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 278) var->sync = FB_SYNC_VERT_HIGH_ACT;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 279)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 280) var->xres = mode->x_res;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 281) var->yres = mode->y_res;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 282) var->xres_virtual = mode->x_res;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 283) var->yres_virtual = (par->ypan) ?
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 284) info->fix.smem_len / mode->bytes_per_scan_line :
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 285) mode->y_res;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 286) var->xoffset = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 287) var->yoffset = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 288) var->bits_per_pixel = mode->bits_per_pixel;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 289)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 290) if (var->bits_per_pixel == 15)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 291) var->bits_per_pixel = 16;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 292)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 293) if (var->bits_per_pixel > 8) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 294) var->red.offset = mode->red_off;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 295) var->red.length = mode->red_len;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 296) var->green.offset = mode->green_off;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 297) var->green.length = mode->green_len;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 298) var->blue.offset = mode->blue_off;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 299) var->blue.length = mode->blue_len;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 300) var->transp.offset = mode->rsvd_off;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 301) var->transp.length = mode->rsvd_len;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 302) } else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 303) var->red.offset = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 304) var->green.offset = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 305) var->blue.offset = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 306) var->transp.offset = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 307)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 308) var->red.length = 8;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 309) var->green.length = 8;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 310) var->blue.length = 8;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 311) var->transp.length = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 312) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 313) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 314)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 315) static int uvesafb_vbe_find_mode(struct uvesafb_par *par,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 316) int xres, int yres, int depth, unsigned char flags)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 317) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 318) int i, match = -1, h = 0, d = 0x7fffffff;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 319)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 320) for (i = 0; i < par->vbe_modes_cnt; i++) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 321) h = abs(par->vbe_modes[i].x_res - xres) +
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 322) abs(par->vbe_modes[i].y_res - yres) +
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 323) abs(depth - par->vbe_modes[i].depth);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 324)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 325) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 326) * We have an exact match in terms of resolution
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 327) * and depth.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 328) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 329) if (h == 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 330) return i;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 331)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 332) if (h < d || (h == d && par->vbe_modes[i].depth > depth)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 333) d = h;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 334) match = i;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 335) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 336) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 337) i = 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 338)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 339) if (flags & UVESAFB_EXACT_DEPTH &&
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 340) par->vbe_modes[match].depth != depth)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 341) i = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 342)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 343) if (flags & UVESAFB_EXACT_RES && d > 24)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 344) i = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 345)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 346) if (i != 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 347) return match;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 348) else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 349) return -1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 350) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 351)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 352) static u8 *uvesafb_vbe_state_save(struct uvesafb_par *par)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 353) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 354) struct uvesafb_ktask *task;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 355) u8 *state;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 356) int err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 357)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 358) if (!par->vbe_state_size)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 359) return NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 360)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 361) state = kmalloc(par->vbe_state_size, GFP_KERNEL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 362) if (!state)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 363) return ERR_PTR(-ENOMEM);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 364)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 365) task = uvesafb_prep();
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 366) if (!task) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 367) kfree(state);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 368) return NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 369) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 370)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 371) task->t.regs.eax = 0x4f04;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 372) task->t.regs.ecx = 0x000f;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 373) task->t.regs.edx = 0x0001;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 374) task->t.flags = TF_BUF_RET | TF_BUF_ESBX;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 375) task->t.buf_len = par->vbe_state_size;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 376) task->buf = state;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 377) err = uvesafb_exec(task);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 378)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 379) if (err || (task->t.regs.eax & 0xffff) != 0x004f) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 380) pr_warn("VBE get state call failed (eax=0x%x, err=%d)\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 381) task->t.regs.eax, err);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 382) kfree(state);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 383) state = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 384) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 385)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 386) uvesafb_free(task);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 387) return state;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 388) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 389)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 390) static void uvesafb_vbe_state_restore(struct uvesafb_par *par, u8 *state_buf)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 391) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 392) struct uvesafb_ktask *task;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 393) int err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 394)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 395) if (!state_buf)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 396) return;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 397)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 398) task = uvesafb_prep();
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 399) if (!task)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 400) return;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 401)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 402) task->t.regs.eax = 0x4f04;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 403) task->t.regs.ecx = 0x000f;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 404) task->t.regs.edx = 0x0002;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 405) task->t.buf_len = par->vbe_state_size;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 406) task->t.flags = TF_BUF_ESBX;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 407) task->buf = state_buf;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 408)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 409) err = uvesafb_exec(task);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 410) if (err || (task->t.regs.eax & 0xffff) != 0x004f)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 411) pr_warn("VBE state restore call failed (eax=0x%x, err=%d)\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 412) task->t.regs.eax, err);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 413)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 414) uvesafb_free(task);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 415) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 416)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 417) static int uvesafb_vbe_getinfo(struct uvesafb_ktask *task,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 418) struct uvesafb_par *par)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 419) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 420) int err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 421)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 422) task->t.regs.eax = 0x4f00;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 423) task->t.flags = TF_VBEIB;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 424) task->t.buf_len = sizeof(struct vbe_ib);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 425) task->buf = &par->vbe_ib;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 426) strncpy(par->vbe_ib.vbe_signature, "VBE2", 4);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 427)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 428) err = uvesafb_exec(task);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 429) if (err || (task->t.regs.eax & 0xffff) != 0x004f) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 430) pr_err("Getting VBE info block failed (eax=0x%x, err=%d)\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 431) (u32)task->t.regs.eax, err);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 432) return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 433) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 434)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 435) if (par->vbe_ib.vbe_version < 0x0200) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 436) pr_err("Sorry, pre-VBE 2.0 cards are not supported\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 437) return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 438) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 439)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 440) if (!par->vbe_ib.mode_list_ptr) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 441) pr_err("Missing mode list!\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 442) return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 443) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 444)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 445) pr_info("");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 446)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 447) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 448) * Convert string pointers and the mode list pointer into
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 449) * usable addresses. Print informational messages about the
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 450) * video adapter and its vendor.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 451) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 452) if (par->vbe_ib.oem_vendor_name_ptr)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 453) pr_cont("%s, ",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 454) ((char *)task->buf) + par->vbe_ib.oem_vendor_name_ptr);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 455)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 456) if (par->vbe_ib.oem_product_name_ptr)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 457) pr_cont("%s, ",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 458) ((char *)task->buf) + par->vbe_ib.oem_product_name_ptr);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 459)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 460) if (par->vbe_ib.oem_product_rev_ptr)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 461) pr_cont("%s, ",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 462) ((char *)task->buf) + par->vbe_ib.oem_product_rev_ptr);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 463)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 464) if (par->vbe_ib.oem_string_ptr)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 465) pr_cont("OEM: %s, ",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 466) ((char *)task->buf) + par->vbe_ib.oem_string_ptr);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 467)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 468) pr_cont("VBE v%d.%d\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 469) (par->vbe_ib.vbe_version & 0xff00) >> 8,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 470) par->vbe_ib.vbe_version & 0xff);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 471)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 472) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 473) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 474)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 475) static int uvesafb_vbe_getmodes(struct uvesafb_ktask *task,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 476) struct uvesafb_par *par)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 477) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 478) int off = 0, err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 479) u16 *mode;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 480)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 481) par->vbe_modes_cnt = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 482)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 483) /* Count available modes. */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 484) mode = (u16 *) (((u8 *)&par->vbe_ib) + par->vbe_ib.mode_list_ptr);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 485) while (*mode != 0xffff) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 486) par->vbe_modes_cnt++;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 487) mode++;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 488) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 489)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 490) par->vbe_modes = kcalloc(par->vbe_modes_cnt,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 491) sizeof(struct vbe_mode_ib),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 492) GFP_KERNEL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 493) if (!par->vbe_modes)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 494) return -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 495)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 496) /* Get info about all available modes. */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 497) mode = (u16 *) (((u8 *)&par->vbe_ib) + par->vbe_ib.mode_list_ptr);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 498) while (*mode != 0xffff) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 499) struct vbe_mode_ib *mib;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 500)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 501) uvesafb_reset(task);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 502) task->t.regs.eax = 0x4f01;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 503) task->t.regs.ecx = (u32) *mode;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 504) task->t.flags = TF_BUF_RET | TF_BUF_ESDI;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 505) task->t.buf_len = sizeof(struct vbe_mode_ib);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 506) task->buf = par->vbe_modes + off;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 507)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 508) err = uvesafb_exec(task);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 509) if (err || (task->t.regs.eax & 0xffff) != 0x004f) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 510) pr_warn("Getting mode info block for mode 0x%x failed (eax=0x%x, err=%d)\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 511) *mode, (u32)task->t.regs.eax, err);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 512) mode++;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 513) par->vbe_modes_cnt--;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 514) continue;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 515) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 516)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 517) mib = task->buf;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 518) mib->mode_id = *mode;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 519)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 520) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 521) * We only want modes that are supported with the current
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 522) * hardware configuration, color, graphics and that have
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 523) * support for the LFB.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 524) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 525) if ((mib->mode_attr & VBE_MODE_MASK) == VBE_MODE_MASK &&
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 526) mib->bits_per_pixel >= 8)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 527) off++;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 528) else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 529) par->vbe_modes_cnt--;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 530)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 531) mode++;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 532) mib->depth = mib->red_len + mib->green_len + mib->blue_len;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 533)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 534) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 535) * Handle 8bpp modes and modes with broken color component
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 536) * lengths.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 537) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 538) if (mib->depth == 0 || (mib->depth == 24 &&
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 539) mib->bits_per_pixel == 32))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 540) mib->depth = mib->bits_per_pixel;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 541) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 542)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 543) if (par->vbe_modes_cnt > 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 544) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 545) else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 546) return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 547) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 548)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 549) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 550) * The Protected Mode Interface is 32-bit x86 code, so we only run it on
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 551) * x86 and not x86_64.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 552) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 553) #ifdef CONFIG_X86_32
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 554) static int uvesafb_vbe_getpmi(struct uvesafb_ktask *task,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 555) struct uvesafb_par *par)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 556) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 557) int i, err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 558)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 559) uvesafb_reset(task);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 560) task->t.regs.eax = 0x4f0a;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 561) task->t.regs.ebx = 0x0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 562) err = uvesafb_exec(task);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 563)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 564) if ((task->t.regs.eax & 0xffff) != 0x4f || task->t.regs.es < 0xc000) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 565) par->pmi_setpal = par->ypan = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 566) } else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 567) par->pmi_base = (u16 *)phys_to_virt(((u32)task->t.regs.es << 4)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 568) + task->t.regs.edi);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 569) par->pmi_start = (u8 *)par->pmi_base + par->pmi_base[1];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 570) par->pmi_pal = (u8 *)par->pmi_base + par->pmi_base[2];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 571) pr_info("protected mode interface info at %04x:%04x\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 572) (u16)task->t.regs.es, (u16)task->t.regs.edi);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 573) pr_info("pmi: set display start = %p, set palette = %p\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 574) par->pmi_start, par->pmi_pal);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 575)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 576) if (par->pmi_base[3]) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 577) pr_info("pmi: ports =");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 578) for (i = par->pmi_base[3]/2;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 579) par->pmi_base[i] != 0xffff; i++)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 580) pr_cont(" %x", par->pmi_base[i]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 581) pr_cont("\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 582)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 583) if (par->pmi_base[i] != 0xffff) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 584) pr_info("can't handle memory requests, pmi disabled\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 585) par->ypan = par->pmi_setpal = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 586) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 587) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 588) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 589) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 590) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 591) #endif /* CONFIG_X86_32 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 592)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 593) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 594) * Check whether a video mode is supported by the Video BIOS and is
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 595) * compatible with the monitor limits.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 596) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 597) static int uvesafb_is_valid_mode(struct fb_videomode *mode,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 598) struct fb_info *info)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 599) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 600) if (info->monspecs.gtf) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 601) fb_videomode_to_var(&info->var, mode);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 602) if (fb_validate_mode(&info->var, info))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 603) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 604) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 605)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 606) if (uvesafb_vbe_find_mode(info->par, mode->xres, mode->yres, 8,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 607) UVESAFB_EXACT_RES) == -1)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 608) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 609)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 610) return 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 611) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 612)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 613) static int uvesafb_vbe_getedid(struct uvesafb_ktask *task, struct fb_info *info)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 614) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 615) struct uvesafb_par *par = info->par;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 616) int err = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 617)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 618) if (noedid || par->vbe_ib.vbe_version < 0x0300)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 619) return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 620)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 621) task->t.regs.eax = 0x4f15;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 622) task->t.regs.ebx = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 623) task->t.regs.ecx = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 624) task->t.buf_len = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 625) task->t.flags = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 626)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 627) err = uvesafb_exec(task);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 628)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 629) if ((task->t.regs.eax & 0xffff) != 0x004f || err)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 630) return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 631)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 632) if ((task->t.regs.ebx & 0x3) == 3) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 633) pr_info("VBIOS/hardware supports both DDC1 and DDC2 transfers\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 634) } else if ((task->t.regs.ebx & 0x3) == 2) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 635) pr_info("VBIOS/hardware supports DDC2 transfers\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 636) } else if ((task->t.regs.ebx & 0x3) == 1) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 637) pr_info("VBIOS/hardware supports DDC1 transfers\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 638) } else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 639) pr_info("VBIOS/hardware doesn't support DDC transfers\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 640) return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 641) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 642)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 643) task->t.regs.eax = 0x4f15;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 644) task->t.regs.ebx = 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 645) task->t.regs.ecx = task->t.regs.edx = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 646) task->t.flags = TF_BUF_RET | TF_BUF_ESDI;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 647) task->t.buf_len = EDID_LENGTH;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 648) task->buf = kzalloc(EDID_LENGTH, GFP_KERNEL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 649) if (!task->buf)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 650) return -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 651)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 652) err = uvesafb_exec(task);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 653)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 654) if ((task->t.regs.eax & 0xffff) == 0x004f && !err) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 655) fb_edid_to_monspecs(task->buf, &info->monspecs);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 656)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 657) if (info->monspecs.vfmax && info->monspecs.hfmax) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 658) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 659) * If the maximum pixel clock wasn't specified in
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 660) * the EDID block, set it to 300 MHz.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 661) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 662) if (info->monspecs.dclkmax == 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 663) info->monspecs.dclkmax = 300 * 1000000;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 664) info->monspecs.gtf = 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 665) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 666) } else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 667) err = -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 668) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 669)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 670) kfree(task->buf);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 671) return err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 672) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 673)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 674) static void uvesafb_vbe_getmonspecs(struct uvesafb_ktask *task,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 675) struct fb_info *info)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 676) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 677) struct uvesafb_par *par = info->par;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 678) int i;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 679)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 680) memset(&info->monspecs, 0, sizeof(info->monspecs));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 681)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 682) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 683) * If we don't get all necessary data from the EDID block,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 684) * mark it as incompatible with the GTF and set nocrtc so
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 685) * that we always use the default BIOS refresh rate.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 686) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 687) if (uvesafb_vbe_getedid(task, info)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 688) info->monspecs.gtf = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 689) par->nocrtc = 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 690) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 691)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 692) /* Kernel command line overrides. */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 693) if (maxclk)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 694) info->monspecs.dclkmax = maxclk * 1000000;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 695) if (maxvf)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 696) info->monspecs.vfmax = maxvf;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 697) if (maxhf)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 698) info->monspecs.hfmax = maxhf * 1000;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 699)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 700) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 701) * In case DDC transfers are not supported, the user can provide
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 702) * monitor limits manually. Lower limits are set to "safe" values.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 703) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 704) if (info->monspecs.gtf == 0 && maxclk && maxvf && maxhf) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 705) info->monspecs.dclkmin = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 706) info->monspecs.vfmin = 60;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 707) info->monspecs.hfmin = 29000;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 708) info->monspecs.gtf = 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 709) par->nocrtc = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 710) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 711)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 712) if (info->monspecs.gtf)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 713) pr_info("monitor limits: vf = %d Hz, hf = %d kHz, clk = %d MHz\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 714) info->monspecs.vfmax,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 715) (int)(info->monspecs.hfmax / 1000),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 716) (int)(info->monspecs.dclkmax / 1000000));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 717) else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 718) pr_info("no monitor limits have been set, default refresh rate will be used\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 719)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 720) /* Add VBE modes to the modelist. */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 721) for (i = 0; i < par->vbe_modes_cnt; i++) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 722) struct fb_var_screeninfo var;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 723) struct vbe_mode_ib *mode;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 724) struct fb_videomode vmode;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 725)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 726) mode = &par->vbe_modes[i];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 727) memset(&var, 0, sizeof(var));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 728)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 729) var.xres = mode->x_res;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 730) var.yres = mode->y_res;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 731)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 732) fb_get_mode(FB_VSYNCTIMINGS | FB_IGNOREMON, 60, &var, info);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 733) fb_var_to_videomode(&vmode, &var);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 734) fb_add_videomode(&vmode, &info->modelist);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 735) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 736)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 737) /* Add valid VESA modes to our modelist. */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 738) for (i = 0; i < VESA_MODEDB_SIZE; i++) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 739) if (uvesafb_is_valid_mode((struct fb_videomode *)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 740) &vesa_modes[i], info))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 741) fb_add_videomode(&vesa_modes[i], &info->modelist);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 742) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 743)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 744) for (i = 0; i < info->monspecs.modedb_len; i++) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 745) if (uvesafb_is_valid_mode(&info->monspecs.modedb[i], info))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 746) fb_add_videomode(&info->monspecs.modedb[i],
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 747) &info->modelist);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 748) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 749)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 750) return;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 751) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 752)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 753) static void uvesafb_vbe_getstatesize(struct uvesafb_ktask *task,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 754) struct uvesafb_par *par)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 755) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 756) int err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 757)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 758) uvesafb_reset(task);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 759)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 760) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 761) * Get the VBE state buffer size. We want all available
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 762) * hardware state data (CL = 0x0f).
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 763) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 764) task->t.regs.eax = 0x4f04;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 765) task->t.regs.ecx = 0x000f;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 766) task->t.regs.edx = 0x0000;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 767) task->t.flags = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 768)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 769) err = uvesafb_exec(task);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 770)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 771) if (err || (task->t.regs.eax & 0xffff) != 0x004f) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 772) pr_warn("VBE state buffer size cannot be determined (eax=0x%x, err=%d)\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 773) task->t.regs.eax, err);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 774) par->vbe_state_size = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 775) return;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 776) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 777)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 778) par->vbe_state_size = 64 * (task->t.regs.ebx & 0xffff);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 779) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 780)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 781) static int uvesafb_vbe_init(struct fb_info *info)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 782) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 783) struct uvesafb_ktask *task = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 784) struct uvesafb_par *par = info->par;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 785) int err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 786)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 787) task = uvesafb_prep();
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 788) if (!task)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 789) return -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 790)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 791) err = uvesafb_vbe_getinfo(task, par);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 792) if (err)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 793) goto out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 794)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 795) err = uvesafb_vbe_getmodes(task, par);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 796) if (err)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 797) goto out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 798)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 799) par->nocrtc = nocrtc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 800) #ifdef CONFIG_X86_32
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 801) par->pmi_setpal = pmi_setpal;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 802) par->ypan = ypan;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 803)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 804) if (par->pmi_setpal || par->ypan) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 805) if (__supported_pte_mask & _PAGE_NX) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 806) par->pmi_setpal = par->ypan = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 807) pr_warn("NX protection is active, better not use the PMI\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 808) } else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 809) uvesafb_vbe_getpmi(task, par);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 810) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 811) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 812) #else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 813) /* The protected mode interface is not available on non-x86. */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 814) par->pmi_setpal = par->ypan = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 815) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 816)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 817) INIT_LIST_HEAD(&info->modelist);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 818) uvesafb_vbe_getmonspecs(task, info);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 819) uvesafb_vbe_getstatesize(task, par);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 820)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 821) out: uvesafb_free(task);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 822) return err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 823) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 824)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 825) static int uvesafb_vbe_init_mode(struct fb_info *info)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 826) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 827) struct list_head *pos;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 828) struct fb_modelist *modelist;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 829) struct fb_videomode *mode;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 830) struct uvesafb_par *par = info->par;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 831) int i, modeid;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 832)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 833) /* Has the user requested a specific VESA mode? */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 834) if (vbemode) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 835) for (i = 0; i < par->vbe_modes_cnt; i++) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 836) if (par->vbe_modes[i].mode_id == vbemode) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 837) modeid = i;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 838) uvesafb_setup_var(&info->var, info,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 839) &par->vbe_modes[modeid]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 840) fb_get_mode(FB_VSYNCTIMINGS | FB_IGNOREMON, 60,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 841) &info->var, info);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 842) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 843) * With pixclock set to 0, the default BIOS
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 844) * timings will be used in set_par().
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 845) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 846) info->var.pixclock = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 847) goto gotmode;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 848) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 849) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 850) pr_info("requested VBE mode 0x%x is unavailable\n", vbemode);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 851) vbemode = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 852) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 853)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 854) /* Count the modes in the modelist */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 855) i = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 856) list_for_each(pos, &info->modelist)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 857) i++;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 858)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 859) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 860) * Convert the modelist into a modedb so that we can use it with
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 861) * fb_find_mode().
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 862) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 863) mode = kcalloc(i, sizeof(*mode), GFP_KERNEL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 864) if (mode) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 865) i = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 866) list_for_each(pos, &info->modelist) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 867) modelist = list_entry(pos, struct fb_modelist, list);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 868) mode[i] = modelist->mode;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 869) i++;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 870) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 871)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 872) if (!mode_option)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 873) mode_option = UVESAFB_DEFAULT_MODE;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 874)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 875) i = fb_find_mode(&info->var, info, mode_option, mode, i,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 876) NULL, 8);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 877)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 878) kfree(mode);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 879) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 880)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 881) /* fb_find_mode() failed */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 882) if (i == 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 883) info->var.xres = 640;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 884) info->var.yres = 480;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 885) mode = (struct fb_videomode *)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 886) fb_find_best_mode(&info->var, &info->modelist);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 887)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 888) if (mode) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 889) fb_videomode_to_var(&info->var, mode);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 890) } else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 891) modeid = par->vbe_modes[0].mode_id;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 892) uvesafb_setup_var(&info->var, info,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 893) &par->vbe_modes[modeid]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 894) fb_get_mode(FB_VSYNCTIMINGS | FB_IGNOREMON, 60,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 895) &info->var, info);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 896)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 897) goto gotmode;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 898) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 899) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 900)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 901) /* Look for a matching VBE mode. */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 902) modeid = uvesafb_vbe_find_mode(par, info->var.xres, info->var.yres,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 903) info->var.bits_per_pixel, UVESAFB_EXACT_RES);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 904)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 905) if (modeid == -1)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 906) return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 907)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 908) uvesafb_setup_var(&info->var, info, &par->vbe_modes[modeid]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 909)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 910) gotmode:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 911) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 912) * If we are not VBE3.0+ compliant, we're done -- the BIOS will
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 913) * ignore our timings anyway.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 914) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 915) if (par->vbe_ib.vbe_version < 0x0300 || par->nocrtc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 916) fb_get_mode(FB_VSYNCTIMINGS | FB_IGNOREMON, 60,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 917) &info->var, info);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 918)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 919) return modeid;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 920) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 921)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 922) static int uvesafb_setpalette(struct uvesafb_pal_entry *entries, int count,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 923) int start, struct fb_info *info)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 924) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 925) struct uvesafb_ktask *task;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 926) #ifdef CONFIG_X86
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 927) struct uvesafb_par *par = info->par;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 928) int i = par->mode_idx;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 929) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 930) int err = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 931)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 932) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 933) * We support palette modifications for 8 bpp modes only, so
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 934) * there can never be more than 256 entries.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 935) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 936) if (start + count > 256)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 937) return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 938)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 939) #ifdef CONFIG_X86
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 940) /* Use VGA registers if mode is VGA-compatible. */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 941) if (i >= 0 && i < par->vbe_modes_cnt &&
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 942) par->vbe_modes[i].mode_attr & VBE_MODE_VGACOMPAT) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 943) for (i = 0; i < count; i++) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 944) outb_p(start + i, dac_reg);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 945) outb_p(entries[i].red, dac_val);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 946) outb_p(entries[i].green, dac_val);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 947) outb_p(entries[i].blue, dac_val);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 948) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 949) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 950) #ifdef CONFIG_X86_32
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 951) else if (par->pmi_setpal) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 952) __asm__ __volatile__(
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 953) "call *(%%esi)"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 954) : /* no return value */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 955) : "a" (0x4f09), /* EAX */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 956) "b" (0), /* EBX */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 957) "c" (count), /* ECX */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 958) "d" (start), /* EDX */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 959) "D" (entries), /* EDI */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 960) "S" (&par->pmi_pal)); /* ESI */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 961) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 962) #endif /* CONFIG_X86_32 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 963) else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 964) #endif /* CONFIG_X86 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 965) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 966) task = uvesafb_prep();
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 967) if (!task)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 968) return -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 969)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 970) task->t.regs.eax = 0x4f09;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 971) task->t.regs.ebx = 0x0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 972) task->t.regs.ecx = count;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 973) task->t.regs.edx = start;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 974) task->t.flags = TF_BUF_ESDI;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 975) task->t.buf_len = sizeof(struct uvesafb_pal_entry) * count;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 976) task->buf = entries;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 977)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 978) err = uvesafb_exec(task);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 979) if ((task->t.regs.eax & 0xffff) != 0x004f)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 980) err = 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 981)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 982) uvesafb_free(task);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 983) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 984) return err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 985) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 986)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 987) static int uvesafb_setcolreg(unsigned regno, unsigned red, unsigned green,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 988) unsigned blue, unsigned transp,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 989) struct fb_info *info)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 990) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 991) struct uvesafb_pal_entry entry;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 992) int shift = 16 - dac_width;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 993) int err = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 994)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 995) if (regno >= info->cmap.len)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 996) return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 997)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 998) if (info->var.bits_per_pixel == 8) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 999) entry.red = red >> shift;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1000) entry.green = green >> shift;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1001) entry.blue = blue >> shift;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1002) entry.pad = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1003)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1004) err = uvesafb_setpalette(&entry, 1, regno, info);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1005) } else if (regno < 16) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1006) switch (info->var.bits_per_pixel) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1007) case 16:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1008) if (info->var.red.offset == 10) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1009) /* 1:5:5:5 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1010) ((u32 *) (info->pseudo_palette))[regno] =
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1011) ((red & 0xf800) >> 1) |
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1012) ((green & 0xf800) >> 6) |
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1013) ((blue & 0xf800) >> 11);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1014) } else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1015) /* 0:5:6:5 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1016) ((u32 *) (info->pseudo_palette))[regno] =
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1017) ((red & 0xf800) ) |
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1018) ((green & 0xfc00) >> 5) |
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1019) ((blue & 0xf800) >> 11);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1020) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1021) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1022)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1023) case 24:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1024) case 32:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1025) red >>= 8;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1026) green >>= 8;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1027) blue >>= 8;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1028) ((u32 *)(info->pseudo_palette))[regno] =
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1029) (red << info->var.red.offset) |
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1030) (green << info->var.green.offset) |
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1031) (blue << info->var.blue.offset);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1032) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1033) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1034) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1035) return err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1036) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1037)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1038) static int uvesafb_setcmap(struct fb_cmap *cmap, struct fb_info *info)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1039) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1040) struct uvesafb_pal_entry *entries;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1041) int shift = 16 - dac_width;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1042) int i, err = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1043)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1044) if (info->var.bits_per_pixel == 8) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1045) if (cmap->start + cmap->len > info->cmap.start +
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1046) info->cmap.len || cmap->start < info->cmap.start)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1047) return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1048)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1049) entries = kmalloc_array(cmap->len, sizeof(*entries),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1050) GFP_KERNEL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1051) if (!entries)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1052) return -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1053)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1054) for (i = 0; i < cmap->len; i++) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1055) entries[i].red = cmap->red[i] >> shift;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1056) entries[i].green = cmap->green[i] >> shift;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1057) entries[i].blue = cmap->blue[i] >> shift;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1058) entries[i].pad = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1059) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1060) err = uvesafb_setpalette(entries, cmap->len, cmap->start, info);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1061) kfree(entries);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1062) } else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1063) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1064) * For modes with bpp > 8, we only set the pseudo palette in
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1065) * the fb_info struct. We rely on uvesafb_setcolreg to do all
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1066) * sanity checking.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1067) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1068) for (i = 0; i < cmap->len; i++) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1069) err |= uvesafb_setcolreg(cmap->start + i, cmap->red[i],
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1070) cmap->green[i], cmap->blue[i],
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1071) 0, info);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1072) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1073) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1074) return err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1075) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1076)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1077) static int uvesafb_pan_display(struct fb_var_screeninfo *var,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1078) struct fb_info *info)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1079) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1080) #ifdef CONFIG_X86_32
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1081) int offset;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1082) struct uvesafb_par *par = info->par;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1083)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1084) offset = (var->yoffset * info->fix.line_length + var->xoffset) / 4;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1085)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1086) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1087) * It turns out it's not the best idea to do panning via vm86,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1088) * so we only allow it if we have a PMI.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1089) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1090) if (par->pmi_start) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1091) __asm__ __volatile__(
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1092) "call *(%%edi)"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1093) : /* no return value */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1094) : "a" (0x4f07), /* EAX */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1095) "b" (0), /* EBX */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1096) "c" (offset), /* ECX */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1097) "d" (offset >> 16), /* EDX */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1098) "D" (&par->pmi_start)); /* EDI */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1099) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1100) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1101) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1102) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1103)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1104) static int uvesafb_blank(int blank, struct fb_info *info)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1105) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1106) struct uvesafb_ktask *task;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1107) int err = 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1108) #ifdef CONFIG_X86
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1109) struct uvesafb_par *par = info->par;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1110)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1111) if (par->vbe_ib.capabilities & VBE_CAP_VGACOMPAT) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1112) int loop = 10000;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1113) u8 seq = 0, crtc17 = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1114)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1115) if (blank == FB_BLANK_POWERDOWN) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1116) seq = 0x20;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1117) crtc17 = 0x00;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1118) err = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1119) } else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1120) seq = 0x00;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1121) crtc17 = 0x80;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1122) err = (blank == FB_BLANK_UNBLANK) ? 0 : -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1123) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1124)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1125) vga_wseq(NULL, 0x00, 0x01);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1126) seq |= vga_rseq(NULL, 0x01) & ~0x20;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1127) vga_wseq(NULL, 0x00, seq);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1128)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1129) crtc17 |= vga_rcrt(NULL, 0x17) & ~0x80;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1130) while (loop--);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1131) vga_wcrt(NULL, 0x17, crtc17);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1132) vga_wseq(NULL, 0x00, 0x03);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1133) } else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1134) #endif /* CONFIG_X86 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1135) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1136) task = uvesafb_prep();
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1137) if (!task)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1138) return -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1139)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1140) task->t.regs.eax = 0x4f10;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1141) switch (blank) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1142) case FB_BLANK_UNBLANK:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1143) task->t.regs.ebx = 0x0001;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1144) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1145) case FB_BLANK_NORMAL:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1146) task->t.regs.ebx = 0x0101; /* standby */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1147) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1148) case FB_BLANK_POWERDOWN:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1149) task->t.regs.ebx = 0x0401; /* powerdown */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1150) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1151) default:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1152) goto out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1153) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1154)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1155) err = uvesafb_exec(task);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1156) if (err || (task->t.regs.eax & 0xffff) != 0x004f)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1157) err = 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1158) out: uvesafb_free(task);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1159) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1160) return err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1161) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1162)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1163) static int uvesafb_open(struct fb_info *info, int user)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1164) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1165) struct uvesafb_par *par = info->par;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1166) int cnt = atomic_read(&par->ref_count);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1167) u8 *buf = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1168)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1169) if (!cnt && par->vbe_state_size) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1170) buf = uvesafb_vbe_state_save(par);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1171) if (IS_ERR(buf)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1172) pr_warn("save hardware state failed, error code is %ld!\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1173) PTR_ERR(buf));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1174) } else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1175) par->vbe_state_orig = buf;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1176) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1177) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1178)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1179) atomic_inc(&par->ref_count);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1180) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1181) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1182)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1183) static int uvesafb_release(struct fb_info *info, int user)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1184) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1185) struct uvesafb_ktask *task = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1186) struct uvesafb_par *par = info->par;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1187) int cnt = atomic_read(&par->ref_count);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1188)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1189) if (!cnt)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1190) return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1191)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1192) if (cnt != 1)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1193) goto out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1194)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1195) task = uvesafb_prep();
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1196) if (!task)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1197) goto out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1198)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1199) /* First, try to set the standard 80x25 text mode. */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1200) task->t.regs.eax = 0x0003;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1201) uvesafb_exec(task);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1202)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1203) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1204) * Now try to restore whatever hardware state we might have
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1205) * saved when the fb device was first opened.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1206) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1207) uvesafb_vbe_state_restore(par, par->vbe_state_orig);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1208) out:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1209) atomic_dec(&par->ref_count);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1210) uvesafb_free(task);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1211) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1212) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1213)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1214) static int uvesafb_set_par(struct fb_info *info)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1215) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1216) struct uvesafb_par *par = info->par;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1217) struct uvesafb_ktask *task = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1218) struct vbe_crtc_ib *crtc = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1219) struct vbe_mode_ib *mode = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1220) int i, err = 0, depth = info->var.bits_per_pixel;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1221)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1222) if (depth > 8 && depth != 32)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1223) depth = info->var.red.length + info->var.green.length +
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1224) info->var.blue.length;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1225)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1226) i = uvesafb_vbe_find_mode(par, info->var.xres, info->var.yres, depth,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1227) UVESAFB_EXACT_RES | UVESAFB_EXACT_DEPTH);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1228) if (i >= 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1229) mode = &par->vbe_modes[i];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1230) else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1231) return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1232)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1233) task = uvesafb_prep();
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1234) if (!task)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1235) return -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1236) setmode:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1237) task->t.regs.eax = 0x4f02;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1238) task->t.regs.ebx = mode->mode_id | 0x4000; /* use LFB */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1239)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1240) if (par->vbe_ib.vbe_version >= 0x0300 && !par->nocrtc &&
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1241) info->var.pixclock != 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1242) task->t.regs.ebx |= 0x0800; /* use CRTC data */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1243) task->t.flags = TF_BUF_ESDI;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1244) crtc = kzalloc(sizeof(struct vbe_crtc_ib), GFP_KERNEL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1245) if (!crtc) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1246) err = -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1247) goto out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1248) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1249) crtc->horiz_start = info->var.xres + info->var.right_margin;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1250) crtc->horiz_end = crtc->horiz_start + info->var.hsync_len;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1251) crtc->horiz_total = crtc->horiz_end + info->var.left_margin;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1252)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1253) crtc->vert_start = info->var.yres + info->var.lower_margin;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1254) crtc->vert_end = crtc->vert_start + info->var.vsync_len;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1255) crtc->vert_total = crtc->vert_end + info->var.upper_margin;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1256)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1257) crtc->pixel_clock = PICOS2KHZ(info->var.pixclock) * 1000;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1258) crtc->refresh_rate = (u16)(100 * (crtc->pixel_clock /
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1259) (crtc->vert_total * crtc->horiz_total)));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1260)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1261) if (info->var.vmode & FB_VMODE_DOUBLE)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1262) crtc->flags |= 0x1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1263) if (info->var.vmode & FB_VMODE_INTERLACED)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1264) crtc->flags |= 0x2;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1265) if (!(info->var.sync & FB_SYNC_HOR_HIGH_ACT))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1266) crtc->flags |= 0x4;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1267) if (!(info->var.sync & FB_SYNC_VERT_HIGH_ACT))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1268) crtc->flags |= 0x8;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1269) memcpy(&par->crtc, crtc, sizeof(*crtc));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1270) } else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1271) memset(&par->crtc, 0, sizeof(*crtc));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1272) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1273)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1274) task->t.buf_len = sizeof(struct vbe_crtc_ib);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1275) task->buf = &par->crtc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1276)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1277) err = uvesafb_exec(task);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1278) if (err || (task->t.regs.eax & 0xffff) != 0x004f) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1279) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1280) * The mode switch might have failed because we tried to
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1281) * use our own timings. Try again with the default timings.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1282) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1283) if (crtc != NULL) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1284) pr_warn("mode switch failed (eax=0x%x, err=%d) - trying again with default timings\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1285) task->t.regs.eax, err);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1286) uvesafb_reset(task);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1287) kfree(crtc);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1288) crtc = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1289) info->var.pixclock = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1290) goto setmode;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1291) } else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1292) pr_err("mode switch failed (eax=0x%x, err=%d)\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1293) task->t.regs.eax, err);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1294) err = -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1295) goto out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1296) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1297) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1298) par->mode_idx = i;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1299)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1300) /* For 8bpp modes, always try to set the DAC to 8 bits. */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1301) if (par->vbe_ib.capabilities & VBE_CAP_CAN_SWITCH_DAC &&
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1302) mode->bits_per_pixel <= 8) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1303) uvesafb_reset(task);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1304) task->t.regs.eax = 0x4f08;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1305) task->t.regs.ebx = 0x0800;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1306)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1307) err = uvesafb_exec(task);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1308) if (err || (task->t.regs.eax & 0xffff) != 0x004f ||
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1309) ((task->t.regs.ebx & 0xff00) >> 8) != 8) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1310) dac_width = 6;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1311) } else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1312) dac_width = 8;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1313) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1314) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1315)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1316) info->fix.visual = (info->var.bits_per_pixel == 8) ?
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1317) FB_VISUAL_PSEUDOCOLOR : FB_VISUAL_TRUECOLOR;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1318) info->fix.line_length = mode->bytes_per_scan_line;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1319)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1320) out:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1321) kfree(crtc);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1322) uvesafb_free(task);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1323)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1324) return err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1325) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1326)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1327) static void uvesafb_check_limits(struct fb_var_screeninfo *var,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1328) struct fb_info *info)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1329) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1330) const struct fb_videomode *mode;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1331) struct uvesafb_par *par = info->par;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1332)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1333) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1334) * If pixclock is set to 0, then we're using default BIOS timings
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1335) * and thus don't have to perform any checks here.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1336) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1337) if (!var->pixclock)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1338) return;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1339)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1340) if (par->vbe_ib.vbe_version < 0x0300) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1341) fb_get_mode(FB_VSYNCTIMINGS | FB_IGNOREMON, 60, var, info);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1342) return;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1343) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1344)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1345) if (!fb_validate_mode(var, info))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1346) return;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1347)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1348) mode = fb_find_best_mode(var, &info->modelist);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1349) if (mode) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1350) if (mode->xres == var->xres && mode->yres == var->yres &&
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1351) !(mode->vmode & (FB_VMODE_INTERLACED | FB_VMODE_DOUBLE))) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1352) fb_videomode_to_var(var, mode);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1353) return;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1354) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1355) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1356)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1357) if (info->monspecs.gtf && !fb_get_mode(FB_MAXTIMINGS, 0, var, info))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1358) return;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1359) /* Use default refresh rate */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1360) var->pixclock = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1361) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1362)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1363) static int uvesafb_check_var(struct fb_var_screeninfo *var,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1364) struct fb_info *info)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1365) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1366) struct uvesafb_par *par = info->par;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1367) struct vbe_mode_ib *mode = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1368) int match = -1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1369) int depth = var->red.length + var->green.length + var->blue.length;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1370)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1371) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1372) * Various apps will use bits_per_pixel to set the color depth,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1373) * which is theoretically incorrect, but which we'll try to handle
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1374) * here.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1375) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1376) if (depth == 0 || abs(depth - var->bits_per_pixel) >= 8)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1377) depth = var->bits_per_pixel;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1378)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1379) match = uvesafb_vbe_find_mode(par, var->xres, var->yres, depth,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1380) UVESAFB_EXACT_RES);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1381) if (match == -1)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1382) return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1383)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1384) mode = &par->vbe_modes[match];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1385) uvesafb_setup_var(var, info, mode);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1386)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1387) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1388) * Check whether we have remapped enough memory for this mode.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1389) * We might be called at an early stage, when we haven't remapped
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1390) * any memory yet, in which case we simply skip the check.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1391) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1392) if (var->yres * mode->bytes_per_scan_line > info->fix.smem_len
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1393) && info->fix.smem_len)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1394) return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1395)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1396) if ((var->vmode & FB_VMODE_DOUBLE) &&
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1397) !(par->vbe_modes[match].mode_attr & 0x100))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1398) var->vmode &= ~FB_VMODE_DOUBLE;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1399)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1400) if ((var->vmode & FB_VMODE_INTERLACED) &&
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1401) !(par->vbe_modes[match].mode_attr & 0x200))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1402) var->vmode &= ~FB_VMODE_INTERLACED;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1403)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1404) uvesafb_check_limits(var, info);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1405)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1406) var->xres_virtual = var->xres;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1407) var->yres_virtual = (par->ypan) ?
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1408) info->fix.smem_len / mode->bytes_per_scan_line :
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1409) var->yres;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1410) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1411) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1412)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1413) static struct fb_ops uvesafb_ops = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1414) .owner = THIS_MODULE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1415) .fb_open = uvesafb_open,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1416) .fb_release = uvesafb_release,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1417) .fb_setcolreg = uvesafb_setcolreg,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1418) .fb_setcmap = uvesafb_setcmap,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1419) .fb_pan_display = uvesafb_pan_display,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1420) .fb_blank = uvesafb_blank,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1421) .fb_fillrect = cfb_fillrect,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1422) .fb_copyarea = cfb_copyarea,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1423) .fb_imageblit = cfb_imageblit,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1424) .fb_check_var = uvesafb_check_var,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1425) .fb_set_par = uvesafb_set_par,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1426) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1427)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1428) static void uvesafb_init_info(struct fb_info *info, struct vbe_mode_ib *mode)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1429) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1430) unsigned int size_vmode;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1431) unsigned int size_remap;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1432) unsigned int size_total;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1433) struct uvesafb_par *par = info->par;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1434) int i, h;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1435)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1436) info->pseudo_palette = ((u8 *)info->par + sizeof(struct uvesafb_par));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1437) info->fix = uvesafb_fix;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1438) info->fix.ypanstep = par->ypan ? 1 : 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1439) info->fix.ywrapstep = (par->ypan > 1) ? 1 : 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1440)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1441) /* Disable blanking if the user requested so. */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1442) if (!blank)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1443) uvesafb_ops.fb_blank = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1444)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1445) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1446) * Find out how much IO memory is required for the mode with
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1447) * the highest resolution.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1448) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1449) size_remap = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1450) for (i = 0; i < par->vbe_modes_cnt; i++) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1451) h = par->vbe_modes[i].bytes_per_scan_line *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1452) par->vbe_modes[i].y_res;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1453) if (h > size_remap)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1454) size_remap = h;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1455) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1456) size_remap *= 2;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1457)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1458) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1459) * size_vmode -- that is the amount of memory needed for the
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1460) * used video mode, i.e. the minimum amount of
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1461) * memory we need.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1462) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1463) size_vmode = info->var.yres * mode->bytes_per_scan_line;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1464)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1465) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1466) * size_total -- all video memory we have. Used for mtrr
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1467) * entries, resource allocation and bounds
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1468) * checking.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1469) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1470) size_total = par->vbe_ib.total_memory * 65536;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1471) if (vram_total)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1472) size_total = vram_total * 1024 * 1024;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1473) if (size_total < size_vmode)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1474) size_total = size_vmode;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1475)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1476) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1477) * size_remap -- the amount of video memory we are going to
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1478) * use for vesafb. With modern cards it is no
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1479) * option to simply use size_total as th
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1480) * wastes plenty of kernel address space.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1481) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1482) if (vram_remap)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1483) size_remap = vram_remap * 1024 * 1024;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1484) if (size_remap < size_vmode)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1485) size_remap = size_vmode;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1486) if (size_remap > size_total)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1487) size_remap = size_total;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1488)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1489) info->fix.smem_len = size_remap;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1490) info->fix.smem_start = mode->phys_base_ptr;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1491)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1492) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1493) * We have to set yres_virtual here because when setup_var() was
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1494) * called, smem_len wasn't defined yet.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1495) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1496) info->var.yres_virtual = info->fix.smem_len /
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1497) mode->bytes_per_scan_line;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1498)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1499) if (par->ypan && info->var.yres_virtual > info->var.yres) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1500) pr_info("scrolling: %s using protected mode interface, yres_virtual=%d\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1501) (par->ypan > 1) ? "ywrap" : "ypan",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1502) info->var.yres_virtual);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1503) } else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1504) pr_info("scrolling: redraw\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1505) info->var.yres_virtual = info->var.yres;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1506) par->ypan = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1507) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1508)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1509) info->flags = FBINFO_FLAG_DEFAULT |
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1510) (par->ypan ? FBINFO_HWACCEL_YPAN : 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1511)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1512) if (!par->ypan)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1513) uvesafb_ops.fb_pan_display = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1514) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1515)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1516) static void uvesafb_init_mtrr(struct fb_info *info)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1517) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1518) struct uvesafb_par *par = info->par;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1519)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1520) if (mtrr && !(info->fix.smem_start & (PAGE_SIZE - 1))) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1521) int temp_size = info->fix.smem_len;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1522)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1523) int rc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1524)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1525) /* Find the largest power-of-two */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1526) temp_size = roundup_pow_of_two(temp_size);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1527)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1528) /* Try and find a power of two to add */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1529) do {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1530) rc = arch_phys_wc_add(info->fix.smem_start, temp_size);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1531) temp_size >>= 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1532) } while (temp_size >= PAGE_SIZE && rc == -EINVAL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1533)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1534) if (rc >= 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1535) par->mtrr_handle = rc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1536) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1537) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1538)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1539) static void uvesafb_ioremap(struct fb_info *info)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1540) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1541) info->screen_base = ioremap_wc(info->fix.smem_start, info->fix.smem_len);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1542) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1543)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1544) static ssize_t uvesafb_show_vbe_ver(struct device *dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1545) struct device_attribute *attr, char *buf)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1546) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1547) struct fb_info *info = dev_get_drvdata(dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1548) struct uvesafb_par *par = info->par;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1549)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1550) return snprintf(buf, PAGE_SIZE, "%.4x\n", par->vbe_ib.vbe_version);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1551) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1552)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1553) static DEVICE_ATTR(vbe_version, S_IRUGO, uvesafb_show_vbe_ver, NULL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1554)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1555) static ssize_t uvesafb_show_vbe_modes(struct device *dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1556) struct device_attribute *attr, char *buf)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1557) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1558) struct fb_info *info = dev_get_drvdata(dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1559) struct uvesafb_par *par = info->par;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1560) int ret = 0, i;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1561)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1562) for (i = 0; i < par->vbe_modes_cnt && ret < PAGE_SIZE; i++) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1563) ret += scnprintf(buf + ret, PAGE_SIZE - ret,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1564) "%dx%d-%d, 0x%.4x\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1565) par->vbe_modes[i].x_res, par->vbe_modes[i].y_res,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1566) par->vbe_modes[i].depth, par->vbe_modes[i].mode_id);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1567) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1568)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1569) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1570) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1571)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1572) static DEVICE_ATTR(vbe_modes, S_IRUGO, uvesafb_show_vbe_modes, NULL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1573)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1574) static ssize_t uvesafb_show_vendor(struct device *dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1575) struct device_attribute *attr, char *buf)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1576) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1577) struct fb_info *info = dev_get_drvdata(dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1578) struct uvesafb_par *par = info->par;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1579)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1580) if (par->vbe_ib.oem_vendor_name_ptr)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1581) return snprintf(buf, PAGE_SIZE, "%s\n", (char *)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1582) (&par->vbe_ib) + par->vbe_ib.oem_vendor_name_ptr);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1583) else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1584) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1585) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1586)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1587) static DEVICE_ATTR(oem_vendor, S_IRUGO, uvesafb_show_vendor, NULL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1588)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1589) static ssize_t uvesafb_show_product_name(struct device *dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1590) struct device_attribute *attr, char *buf)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1591) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1592) struct fb_info *info = dev_get_drvdata(dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1593) struct uvesafb_par *par = info->par;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1594)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1595) if (par->vbe_ib.oem_product_name_ptr)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1596) return snprintf(buf, PAGE_SIZE, "%s\n", (char *)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1597) (&par->vbe_ib) + par->vbe_ib.oem_product_name_ptr);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1598) else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1599) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1600) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1601)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1602) static DEVICE_ATTR(oem_product_name, S_IRUGO, uvesafb_show_product_name, NULL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1603)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1604) static ssize_t uvesafb_show_product_rev(struct device *dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1605) struct device_attribute *attr, char *buf)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1606) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1607) struct fb_info *info = dev_get_drvdata(dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1608) struct uvesafb_par *par = info->par;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1609)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1610) if (par->vbe_ib.oem_product_rev_ptr)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1611) return snprintf(buf, PAGE_SIZE, "%s\n", (char *)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1612) (&par->vbe_ib) + par->vbe_ib.oem_product_rev_ptr);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1613) else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1614) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1615) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1616)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1617) static DEVICE_ATTR(oem_product_rev, S_IRUGO, uvesafb_show_product_rev, NULL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1618)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1619) static ssize_t uvesafb_show_oem_string(struct device *dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1620) struct device_attribute *attr, char *buf)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1621) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1622) struct fb_info *info = dev_get_drvdata(dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1623) struct uvesafb_par *par = info->par;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1624)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1625) if (par->vbe_ib.oem_string_ptr)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1626) return snprintf(buf, PAGE_SIZE, "%s\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1627) (char *)(&par->vbe_ib) + par->vbe_ib.oem_string_ptr);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1628) else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1629) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1630) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1631)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1632) static DEVICE_ATTR(oem_string, S_IRUGO, uvesafb_show_oem_string, NULL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1633)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1634) static ssize_t uvesafb_show_nocrtc(struct device *dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1635) struct device_attribute *attr, char *buf)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1636) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1637) struct fb_info *info = dev_get_drvdata(dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1638) struct uvesafb_par *par = info->par;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1639)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1640) return snprintf(buf, PAGE_SIZE, "%d\n", par->nocrtc);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1641) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1642)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1643) static ssize_t uvesafb_store_nocrtc(struct device *dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1644) struct device_attribute *attr, const char *buf, size_t count)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1645) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1646) struct fb_info *info = dev_get_drvdata(dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1647) struct uvesafb_par *par = info->par;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1648)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1649) if (count > 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1650) if (buf[0] == '0')
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1651) par->nocrtc = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1652) else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1653) par->nocrtc = 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1654) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1655) return count;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1656) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1657)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1658) static DEVICE_ATTR(nocrtc, S_IRUGO | S_IWUSR, uvesafb_show_nocrtc,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1659) uvesafb_store_nocrtc);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1660)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1661) static struct attribute *uvesafb_dev_attrs[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1662) &dev_attr_vbe_version.attr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1663) &dev_attr_vbe_modes.attr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1664) &dev_attr_oem_vendor.attr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1665) &dev_attr_oem_product_name.attr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1666) &dev_attr_oem_product_rev.attr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1667) &dev_attr_oem_string.attr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1668) &dev_attr_nocrtc.attr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1669) NULL,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1670) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1671)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1672) static const struct attribute_group uvesafb_dev_attgrp = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1673) .name = NULL,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1674) .attrs = uvesafb_dev_attrs,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1675) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1676)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1677) static int uvesafb_probe(struct platform_device *dev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1678) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1679) struct fb_info *info;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1680) struct vbe_mode_ib *mode = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1681) struct uvesafb_par *par;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1682) int err = 0, i;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1683)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1684) info = framebuffer_alloc(sizeof(*par) + sizeof(u32) * 256, &dev->dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1685) if (!info)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1686) return -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1687)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1688) par = info->par;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1689)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1690) err = uvesafb_vbe_init(info);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1691) if (err) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1692) pr_err("vbe_init() failed with %d\n", err);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1693) goto out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1694) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1695)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1696) info->fbops = &uvesafb_ops;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1697)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1698) i = uvesafb_vbe_init_mode(info);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1699) if (i < 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1700) err = -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1701) goto out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1702) } else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1703) mode = &par->vbe_modes[i];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1704) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1705)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1706) if (fb_alloc_cmap(&info->cmap, 256, 0) < 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1707) err = -ENXIO;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1708) goto out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1709) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1710)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1711) uvesafb_init_info(info, mode);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1712)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1713) if (!request_region(0x3c0, 32, "uvesafb")) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1714) pr_err("request region 0x3c0-0x3e0 failed\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1715) err = -EIO;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1716) goto out_mode;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1717) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1718)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1719) if (!request_mem_region(info->fix.smem_start, info->fix.smem_len,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1720) "uvesafb")) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1721) pr_err("cannot reserve video memory at 0x%lx\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1722) info->fix.smem_start);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1723) err = -EIO;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1724) goto out_reg;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1725) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1726)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1727) uvesafb_init_mtrr(info);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1728) uvesafb_ioremap(info);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1729)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1730) if (!info->screen_base) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1731) pr_err("abort, cannot ioremap 0x%x bytes of video memory at 0x%lx\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1732) info->fix.smem_len, info->fix.smem_start);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1733) err = -EIO;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1734) goto out_mem;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1735) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1736)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1737) platform_set_drvdata(dev, info);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1738)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1739) if (register_framebuffer(info) < 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1740) pr_err("failed to register framebuffer device\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1741) err = -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1742) goto out_unmap;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1743) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1744)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1745) pr_info("framebuffer at 0x%lx, mapped to 0x%p, using %dk, total %dk\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1746) info->fix.smem_start, info->screen_base,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1747) info->fix.smem_len / 1024, par->vbe_ib.total_memory * 64);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1748) fb_info(info, "%s frame buffer device\n", info->fix.id);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1749)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1750) err = sysfs_create_group(&dev->dev.kobj, &uvesafb_dev_attgrp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1751) if (err != 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1752) fb_warn(info, "failed to register attributes\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1753)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1754) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1755)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1756) out_unmap:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1757) iounmap(info->screen_base);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1758) out_mem:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1759) release_mem_region(info->fix.smem_start, info->fix.smem_len);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1760) out_reg:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1761) release_region(0x3c0, 32);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1762) out_mode:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1763) if (!list_empty(&info->modelist))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1764) fb_destroy_modelist(&info->modelist);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1765) fb_destroy_modedb(info->monspecs.modedb);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1766) fb_dealloc_cmap(&info->cmap);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1767) out:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1768) kfree(par->vbe_modes);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1769)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1770) framebuffer_release(info);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1771) return err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1772) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1773)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1774) static int uvesafb_remove(struct platform_device *dev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1775) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1776) struct fb_info *info = platform_get_drvdata(dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1777)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1778) if (info) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1779) struct uvesafb_par *par = info->par;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1780)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1781) sysfs_remove_group(&dev->dev.kobj, &uvesafb_dev_attgrp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1782) unregister_framebuffer(info);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1783) release_region(0x3c0, 32);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1784) iounmap(info->screen_base);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1785) arch_phys_wc_del(par->mtrr_handle);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1786) release_mem_region(info->fix.smem_start, info->fix.smem_len);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1787) fb_destroy_modedb(info->monspecs.modedb);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1788) fb_dealloc_cmap(&info->cmap);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1789)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1790) kfree(par->vbe_modes);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1791) kfree(par->vbe_state_orig);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1792) kfree(par->vbe_state_saved);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1793)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1794) framebuffer_release(info);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1795) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1796) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1797) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1798)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1799) static struct platform_driver uvesafb_driver = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1800) .probe = uvesafb_probe,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1801) .remove = uvesafb_remove,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1802) .driver = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1803) .name = "uvesafb",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1804) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1805) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1806)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1807) static struct platform_device *uvesafb_device;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1808)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1809) #ifndef MODULE
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1810) static int uvesafb_setup(char *options)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1811) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1812) char *this_opt;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1813)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1814) if (!options || !*options)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1815) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1816)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1817) while ((this_opt = strsep(&options, ",")) != NULL) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1818) if (!*this_opt) continue;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1819)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1820) if (!strcmp(this_opt, "redraw"))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1821) ypan = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1822) else if (!strcmp(this_opt, "ypan"))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1823) ypan = 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1824) else if (!strcmp(this_opt, "ywrap"))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1825) ypan = 2;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1826) else if (!strcmp(this_opt, "vgapal"))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1827) pmi_setpal = false;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1828) else if (!strcmp(this_opt, "pmipal"))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1829) pmi_setpal = true;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1830) else if (!strncmp(this_opt, "mtrr:", 5))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1831) mtrr = simple_strtoul(this_opt+5, NULL, 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1832) else if (!strcmp(this_opt, "nomtrr"))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1833) mtrr = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1834) else if (!strcmp(this_opt, "nocrtc"))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1835) nocrtc = true;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1836) else if (!strcmp(this_opt, "noedid"))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1837) noedid = true;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1838) else if (!strcmp(this_opt, "noblank"))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1839) blank = false;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1840) else if (!strncmp(this_opt, "vtotal:", 7))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1841) vram_total = simple_strtoul(this_opt + 7, NULL, 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1842) else if (!strncmp(this_opt, "vremap:", 7))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1843) vram_remap = simple_strtoul(this_opt + 7, NULL, 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1844) else if (!strncmp(this_opt, "maxhf:", 6))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1845) maxhf = simple_strtoul(this_opt + 6, NULL, 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1846) else if (!strncmp(this_opt, "maxvf:", 6))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1847) maxvf = simple_strtoul(this_opt + 6, NULL, 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1848) else if (!strncmp(this_opt, "maxclk:", 7))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1849) maxclk = simple_strtoul(this_opt + 7, NULL, 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1850) else if (!strncmp(this_opt, "vbemode:", 8))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1851) vbemode = simple_strtoul(this_opt + 8, NULL, 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1852) else if (this_opt[0] >= '0' && this_opt[0] <= '9') {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1853) mode_option = this_opt;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1854) } else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1855) pr_warn("unrecognized option %s\n", this_opt);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1856) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1857) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1858)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1859) if (mtrr != 3 && mtrr != 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1860) pr_warn("uvesafb: mtrr should be set to 0 or 3; %d is unsupported", mtrr);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1861)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1862) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1863) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1864) #endif /* !MODULE */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1865)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1866) static ssize_t v86d_show(struct device_driver *dev, char *buf)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1867) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1868) return snprintf(buf, PAGE_SIZE, "%s\n", v86d_path);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1869) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1870)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1871) static ssize_t v86d_store(struct device_driver *dev, const char *buf,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1872) size_t count)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1873) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1874) strncpy(v86d_path, buf, PATH_MAX);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1875) return count;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1876) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1877) static DRIVER_ATTR_RW(v86d);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1878)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1879) static int uvesafb_init(void)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1880) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1881) int err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1882)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1883) #ifndef MODULE
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1884) char *option = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1885)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1886) if (fb_get_options("uvesafb", &option))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1887) return -ENODEV;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1888) uvesafb_setup(option);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1889) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1890) err = cn_add_callback(&uvesafb_cn_id, "uvesafb", uvesafb_cn_callback);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1891) if (err)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1892) return err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1893)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1894) err = platform_driver_register(&uvesafb_driver);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1895)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1896) if (!err) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1897) uvesafb_device = platform_device_alloc("uvesafb", 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1898) if (uvesafb_device)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1899) err = platform_device_add(uvesafb_device);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1900) else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1901) err = -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1902)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1903) if (err) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1904) platform_device_put(uvesafb_device);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1905) platform_driver_unregister(&uvesafb_driver);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1906) cn_del_callback(&uvesafb_cn_id);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1907) return err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1908) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1909)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1910) err = driver_create_file(&uvesafb_driver.driver,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1911) &driver_attr_v86d);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1912) if (err) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1913) pr_warn("failed to register attributes\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1914) err = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1915) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1916) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1917) return err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1918) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1919)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1920) module_init(uvesafb_init);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1921)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1922) static void uvesafb_exit(void)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1923) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1924) struct uvesafb_ktask *task;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1925)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1926) if (v86d_started) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1927) task = uvesafb_prep();
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1928) if (task) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1929) task->t.flags = TF_EXIT;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1930) uvesafb_exec(task);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1931) uvesafb_free(task);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1932) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1933) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1934)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1935) cn_del_callback(&uvesafb_cn_id);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1936) driver_remove_file(&uvesafb_driver.driver, &driver_attr_v86d);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1937) platform_device_unregister(uvesafb_device);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1938) platform_driver_unregister(&uvesafb_driver);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1939) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1940)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1941) module_exit(uvesafb_exit);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1942)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1943) static int param_set_scroll(const char *val, const struct kernel_param *kp)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1944) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1945) ypan = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1946)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1947) if (!strcmp(val, "redraw"))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1948) ypan = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1949) else if (!strcmp(val, "ypan"))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1950) ypan = 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1951) else if (!strcmp(val, "ywrap"))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1952) ypan = 2;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1953) else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1954) return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1955)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1956) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1957) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1958) static const struct kernel_param_ops param_ops_scroll = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1959) .set = param_set_scroll,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1960) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1961) #define param_check_scroll(name, p) __param_check(name, p, void)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1962)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1963) module_param_named(scroll, ypan, scroll, 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1964) MODULE_PARM_DESC(scroll,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1965) "Scrolling mode, set to 'redraw', 'ypan', or 'ywrap'");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1966) module_param_named(vgapal, pmi_setpal, invbool, 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1967) MODULE_PARM_DESC(vgapal, "Set palette using VGA registers");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1968) module_param_named(pmipal, pmi_setpal, bool, 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1969) MODULE_PARM_DESC(pmipal, "Set palette using PMI calls");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1970) module_param(mtrr, uint, 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1971) MODULE_PARM_DESC(mtrr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1972) "Memory Type Range Registers setting. Use 0 to disable.");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1973) module_param(blank, bool, 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1974) MODULE_PARM_DESC(blank, "Enable hardware blanking");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1975) module_param(nocrtc, bool, 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1976) MODULE_PARM_DESC(nocrtc, "Ignore CRTC timings when setting modes");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1977) module_param(noedid, bool, 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1978) MODULE_PARM_DESC(noedid,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1979) "Ignore EDID-provided monitor limits when setting modes");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1980) module_param(vram_remap, uint, 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1981) MODULE_PARM_DESC(vram_remap, "Set amount of video memory to be used [MiB]");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1982) module_param(vram_total, uint, 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1983) MODULE_PARM_DESC(vram_total, "Set total amount of video memory [MiB]");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1984) module_param(maxclk, ushort, 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1985) MODULE_PARM_DESC(maxclk, "Maximum pixelclock [MHz], overrides EDID data");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1986) module_param(maxhf, ushort, 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1987) MODULE_PARM_DESC(maxhf,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1988) "Maximum horizontal frequency [kHz], overrides EDID data");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1989) module_param(maxvf, ushort, 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1990) MODULE_PARM_DESC(maxvf,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1991) "Maximum vertical frequency [Hz], overrides EDID data");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1992) module_param(mode_option, charp, 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1993) MODULE_PARM_DESC(mode_option,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1994) "Specify initial video mode as \"<xres>x<yres>[-<bpp>][@<refresh>]\"");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1995) module_param(vbemode, ushort, 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1996) MODULE_PARM_DESC(vbemode,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1997) "VBE mode number to set, overrides the 'mode' option");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1998) module_param_string(v86d, v86d_path, PATH_MAX, 0660);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1999) MODULE_PARM_DESC(v86d, "Path to the v86d userspace helper.");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2000)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2001) MODULE_LICENSE("GPL");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2002) MODULE_AUTHOR("Michal Januszewski <spock@gentoo.org>");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2003) MODULE_DESCRIPTION("Framebuffer driver for VBE2.0+ compliant graphics boards");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2004)
Orange Pi5 kernel
Deprecated Linux kernel 5.10.110 for OrangePi 5/5B/5+ boards
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