^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) * framebuffer driver for VBE 2.0 compliant graphic boards
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 5) * switching to graphics mode happens at boot time (while
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 6) * running in real mode, see arch/i386/boot/video.S).
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 7) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 8) * (c) 1998 Gerd Knorr <kraxel@goldbach.in-berlin.de>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 9) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12) #include <linux/module.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13) #include <linux/kernel.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14) #include <linux/errno.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15) #include <linux/string.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16) #include <linux/mm.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17) #include <linux/delay.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18) #include <linux/fb.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19) #include <linux/ioport.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20) #include <linux/init.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21) #include <linux/platform_device.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22) #include <linux/screen_info.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)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25) #include <video/vga.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27) #define dac_reg (0x3c8)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28) #define dac_val (0x3c9)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30) /* --------------------------------------------------------------------- */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32) struct vesafb_par {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33) u32 pseudo_palette[256];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34) int wc_cookie;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35) struct resource *region;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 38) static struct fb_var_screeninfo vesafb_defined = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 39) .activate = FB_ACTIVATE_NOW,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 40) .height = -1,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 41) .width = -1,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 42) .right_margin = 32,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 43) .upper_margin = 16,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 44) .lower_margin = 4,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 45) .vsync_len = 4,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 46) .vmode = FB_VMODE_NONINTERLACED,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 47) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 48)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 49) static struct fb_fix_screeninfo vesafb_fix = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 50) .id = "VESA VGA",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 51) .type = FB_TYPE_PACKED_PIXELS,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 52) .accel = FB_ACCEL_NONE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 53) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 54)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 55) static int inverse __read_mostly;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 56) static int mtrr __read_mostly; /* disable mtrr */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 57) static int vram_remap; /* Set amount of memory to be used */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 58) static int vram_total; /* Set total amount of memory */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 59) static int pmi_setpal __read_mostly = 1; /* pmi for palette changes ??? */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 60) static int ypan __read_mostly; /* 0..nothing, 1..ypan, 2..ywrap */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 61) static void (*pmi_start)(void) __read_mostly;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 62) static void (*pmi_pal) (void) __read_mostly;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 63) static int depth __read_mostly;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 64) static int vga_compat __read_mostly;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 65) /* --------------------------------------------------------------------- */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 66)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 67) static int vesafb_pan_display(struct fb_var_screeninfo *var,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 68) struct fb_info *info)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 69) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 70) #ifdef __i386__
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 71) int offset;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 72)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 73) offset = (var->yoffset * info->fix.line_length + var->xoffset) / 4;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 74)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 75) __asm__ __volatile__(
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 76) "call *(%%edi)"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 77) : /* no return value */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 78) : "a" (0x4f07), /* EAX */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 79) "b" (0), /* EBX */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 80) "c" (offset), /* ECX */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 81) "d" (offset >> 16), /* EDX */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 82) "D" (&pmi_start)); /* EDI */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 83) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 84) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 85) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 86)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 87) static int vesa_setpalette(int regno, unsigned red, unsigned green,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 88) unsigned blue)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 89) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 90) int shift = 16 - depth;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 91) int err = -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 92)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 93) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 94) * Try VGA registers first...
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 95) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 96) if (vga_compat) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 97) outb_p(regno, dac_reg);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 98) outb_p(red >> shift, dac_val);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 99) outb_p(green >> shift, dac_val);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 100) outb_p(blue >> shift, dac_val);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 101) err = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 102) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 103)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 104) #ifdef __i386__
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 105) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 106) * Fallback to the PMI....
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 107) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 108) if (err && pmi_setpal) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 109) struct { u_char blue, green, red, pad; } entry;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 110)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 111) entry.red = red >> shift;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 112) entry.green = green >> shift;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 113) entry.blue = blue >> shift;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 114) entry.pad = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 115) __asm__ __volatile__(
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 116) "call *(%%esi)"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 117) : /* no return value */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 118) : "a" (0x4f09), /* EAX */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 119) "b" (0), /* EBX */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 120) "c" (1), /* ECX */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 121) "d" (regno), /* EDX */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 122) "D" (&entry), /* EDI */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 123) "S" (&pmi_pal)); /* ESI */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 124) err = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 125) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 126) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 127)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 128) return err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 129) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 130)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 131) static int vesafb_setcolreg(unsigned regno, unsigned red, unsigned green,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 132) unsigned blue, unsigned transp,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 133) struct fb_info *info)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 134) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 135) int err = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 136)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 137) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 138) * Set a single color register. The values supplied are
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 139) * already rounded down to the hardware's capabilities
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 140) * (according to the entries in the `var' structure). Return
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 141) * != 0 for invalid regno.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 142) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 143)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 144) if (regno >= info->cmap.len)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 145) return 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 146)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 147) if (info->var.bits_per_pixel == 8)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 148) err = vesa_setpalette(regno,red,green,blue);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 149) else if (regno < 16) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 150) switch (info->var.bits_per_pixel) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 151) case 16:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 152) if (info->var.red.offset == 10) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 153) /* 1:5:5:5 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 154) ((u32*) (info->pseudo_palette))[regno] =
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 155) ((red & 0xf800) >> 1) |
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 156) ((green & 0xf800) >> 6) |
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 157) ((blue & 0xf800) >> 11);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 158) } else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 159) /* 0:5:6:5 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 160) ((u32*) (info->pseudo_palette))[regno] =
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 161) ((red & 0xf800) ) |
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 162) ((green & 0xfc00) >> 5) |
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 163) ((blue & 0xf800) >> 11);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 164) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 165) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 166) case 24:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 167) case 32:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 168) red >>= 8;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 169) green >>= 8;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 170) blue >>= 8;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 171) ((u32 *)(info->pseudo_palette))[regno] =
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 172) (red << info->var.red.offset) |
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 173) (green << info->var.green.offset) |
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 174) (blue << info->var.blue.offset);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 175) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 176) }
^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) return err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 180) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 181)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 182) static void vesafb_destroy(struct fb_info *info)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 183) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 184) struct vesafb_par *par = info->par;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 185)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 186) fb_dealloc_cmap(&info->cmap);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 187) arch_phys_wc_del(par->wc_cookie);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 188) if (info->screen_base)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 189) iounmap(info->screen_base);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 190) release_mem_region(info->apertures->ranges[0].base, info->apertures->ranges[0].size);
^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) static struct fb_ops vesafb_ops = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 194) .owner = THIS_MODULE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 195) .fb_destroy = vesafb_destroy,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 196) .fb_setcolreg = vesafb_setcolreg,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 197) .fb_pan_display = vesafb_pan_display,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 198) .fb_fillrect = cfb_fillrect,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 199) .fb_copyarea = cfb_copyarea,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 200) .fb_imageblit = cfb_imageblit,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 201) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 202)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 203) static int vesafb_setup(char *options)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 204) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 205) char *this_opt;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 206)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 207) if (!options || !*options)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 208) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 209)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 210) while ((this_opt = strsep(&options, ",")) != NULL) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 211) if (!*this_opt) continue;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 212)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 213) if (! strcmp(this_opt, "inverse"))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 214) inverse=1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 215) else if (! strcmp(this_opt, "redraw"))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 216) ypan=0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 217) else if (! strcmp(this_opt, "ypan"))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 218) ypan=1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 219) else if (! strcmp(this_opt, "ywrap"))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 220) ypan=2;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 221) else if (! strcmp(this_opt, "vgapal"))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 222) pmi_setpal=0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 223) else if (! strcmp(this_opt, "pmipal"))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 224) pmi_setpal=1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 225) else if (! strncmp(this_opt, "mtrr:", 5))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 226) mtrr = simple_strtoul(this_opt+5, NULL, 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 227) else if (! strcmp(this_opt, "nomtrr"))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 228) mtrr=0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 229) else if (! strncmp(this_opt, "vtotal:", 7))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 230) vram_total = simple_strtoul(this_opt+7, NULL, 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 231) else if (! strncmp(this_opt, "vremap:", 7))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 232) vram_remap = simple_strtoul(this_opt+7, NULL, 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 233) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 234) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 235) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 236)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 237) static int vesafb_probe(struct platform_device *dev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 238) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 239) struct fb_info *info;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 240) struct vesafb_par *par;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 241) int i, err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 242) unsigned int size_vmode;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 243) unsigned int size_remap;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 244) unsigned int size_total;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 245) char *option = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 246)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 247) /* ignore error return of fb_get_options */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 248) fb_get_options("vesafb", &option);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 249) vesafb_setup(option);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 250)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 251) if (screen_info.orig_video_isVGA != VIDEO_TYPE_VLFB)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 252) return -ENODEV;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 253)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 254) vga_compat = (screen_info.capabilities & 2) ? 0 : 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 255) vesafb_fix.smem_start = screen_info.lfb_base;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 256) vesafb_defined.bits_per_pixel = screen_info.lfb_depth;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 257) if (15 == vesafb_defined.bits_per_pixel)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 258) vesafb_defined.bits_per_pixel = 16;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 259) vesafb_defined.xres = screen_info.lfb_width;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 260) vesafb_defined.yres = screen_info.lfb_height;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 261) vesafb_fix.line_length = screen_info.lfb_linelength;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 262) vesafb_fix.visual = (vesafb_defined.bits_per_pixel == 8) ?
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 263) FB_VISUAL_PSEUDOCOLOR : FB_VISUAL_TRUECOLOR;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 264)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 265) /* size_vmode -- that is the amount of memory needed for the
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 266) * used video mode, i.e. the minimum amount of
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 267) * memory we need. */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 268) size_vmode = vesafb_defined.yres * vesafb_fix.line_length;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 269)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 270) /* size_total -- all video memory we have. Used for mtrr
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 271) * entries, resource allocation and bounds
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 272) * checking. */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 273) size_total = screen_info.lfb_size * 65536;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 274) if (vram_total)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 275) size_total = vram_total * 1024 * 1024;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 276) if (size_total < size_vmode)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 277) size_total = size_vmode;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 278)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 279) /* size_remap -- the amount of video memory we are going to
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 280) * use for vesafb. With modern cards it is no
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 281) * option to simply use size_total as that
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 282) * wastes plenty of kernel address space. */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 283) size_remap = size_vmode * 2;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 284) if (vram_remap)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 285) size_remap = vram_remap * 1024 * 1024;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 286) if (size_remap < size_vmode)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 287) size_remap = size_vmode;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 288) if (size_remap > size_total)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 289) size_remap = size_total;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 290) vesafb_fix.smem_len = size_remap;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 291)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 292) #ifndef __i386__
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 293) screen_info.vesapm_seg = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 294) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 295)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 296) if (!request_mem_region(vesafb_fix.smem_start, size_total, "vesafb")) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 297) printk(KERN_WARNING
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 298) "vesafb: cannot reserve video memory at 0x%lx\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 299) vesafb_fix.smem_start);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 300) /* We cannot make this fatal. Sometimes this comes from magic
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 301) spaces our resource handlers simply don't know about */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 302) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 303)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 304) info = framebuffer_alloc(sizeof(struct vesafb_par), &dev->dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 305) if (!info) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 306) release_mem_region(vesafb_fix.smem_start, size_total);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 307) return -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 308) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 309) platform_set_drvdata(dev, info);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 310) par = info->par;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 311) info->pseudo_palette = par->pseudo_palette;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 312)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 313) /* set vesafb aperture size for generic probing */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 314) info->apertures = alloc_apertures(1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 315) if (!info->apertures) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 316) err = -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 317) goto err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 318) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 319) info->apertures->ranges[0].base = screen_info.lfb_base;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 320) info->apertures->ranges[0].size = size_total;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 321)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 322) printk(KERN_INFO "vesafb: mode is %dx%dx%d, linelength=%d, pages=%d\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 323) vesafb_defined.xres, vesafb_defined.yres, vesafb_defined.bits_per_pixel, vesafb_fix.line_length, screen_info.pages);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 324)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 325) if (screen_info.vesapm_seg) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 326) printk(KERN_INFO "vesafb: protected mode interface info at %04x:%04x\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 327) screen_info.vesapm_seg,screen_info.vesapm_off);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 328) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 329)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 330) if (screen_info.vesapm_seg < 0xc000)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 331) ypan = pmi_setpal = 0; /* not available or some DOS TSR ... */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 332)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 333) if (ypan || pmi_setpal) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 334) unsigned short *pmi_base;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 335) pmi_base = (unsigned short*)phys_to_virt(((unsigned long)screen_info.vesapm_seg << 4) + screen_info.vesapm_off);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 336) pmi_start = (void*)((char*)pmi_base + pmi_base[1]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 337) pmi_pal = (void*)((char*)pmi_base + pmi_base[2]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 338) printk(KERN_INFO "vesafb: pmi: set display start = %p, set palette = %p\n",pmi_start,pmi_pal);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 339) if (pmi_base[3]) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 340) printk(KERN_INFO "vesafb: pmi: ports = ");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 341) for (i = pmi_base[3]/2; pmi_base[i] != 0xffff; i++)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 342) printk("%x ", pmi_base[i]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 343) printk("\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 344) if (pmi_base[i] != 0xffff) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 345) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 346) * memory areas not supported (yet?)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 347) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 348) * Rules are: we have to set up a descriptor for the requested
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 349) * memory area and pass it in the ES register to the BIOS function.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 350) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 351) printk(KERN_INFO "vesafb: can't handle memory requests, pmi disabled\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 352) ypan = pmi_setpal = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 353) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 354) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 355) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 356)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 357) if (vesafb_defined.bits_per_pixel == 8 && !pmi_setpal && !vga_compat) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 358) printk(KERN_WARNING "vesafb: hardware palette is unchangeable,\n"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 359) " colors may be incorrect\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 360) vesafb_fix.visual = FB_VISUAL_STATIC_PSEUDOCOLOR;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 361) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 362)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 363) vesafb_defined.xres_virtual = vesafb_defined.xres;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 364) vesafb_defined.yres_virtual = vesafb_fix.smem_len / vesafb_fix.line_length;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 365) if (ypan && vesafb_defined.yres_virtual > vesafb_defined.yres) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 366) printk(KERN_INFO "vesafb: scrolling: %s using protected mode interface, yres_virtual=%d\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 367) (ypan > 1) ? "ywrap" : "ypan",vesafb_defined.yres_virtual);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 368) } else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 369) printk(KERN_INFO "vesafb: scrolling: redraw\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 370) vesafb_defined.yres_virtual = vesafb_defined.yres;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 371) ypan = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 372) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 373)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 374) /* some dummy values for timing to make fbset happy */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 375) vesafb_defined.pixclock = 10000000 / vesafb_defined.xres * 1000 / vesafb_defined.yres;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 376) vesafb_defined.left_margin = (vesafb_defined.xres / 8) & 0xf8;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 377) vesafb_defined.hsync_len = (vesafb_defined.xres / 8) & 0xf8;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 378)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 379) vesafb_defined.red.offset = screen_info.red_pos;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 380) vesafb_defined.red.length = screen_info.red_size;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 381) vesafb_defined.green.offset = screen_info.green_pos;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 382) vesafb_defined.green.length = screen_info.green_size;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 383) vesafb_defined.blue.offset = screen_info.blue_pos;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 384) vesafb_defined.blue.length = screen_info.blue_size;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 385) vesafb_defined.transp.offset = screen_info.rsvd_pos;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 386) vesafb_defined.transp.length = screen_info.rsvd_size;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 387)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 388) if (vesafb_defined.bits_per_pixel <= 8) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 389) depth = vesafb_defined.green.length;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 390) vesafb_defined.red.length =
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 391) vesafb_defined.green.length =
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 392) vesafb_defined.blue.length =
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 393) vesafb_defined.bits_per_pixel;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 394) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 395)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 396) printk(KERN_INFO "vesafb: %s: "
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 397) "size=%d:%d:%d:%d, shift=%d:%d:%d:%d\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 398) (vesafb_defined.bits_per_pixel > 8) ?
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 399) "Truecolor" : (vga_compat || pmi_setpal) ?
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 400) "Pseudocolor" : "Static Pseudocolor",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 401) screen_info.rsvd_size,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 402) screen_info.red_size,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 403) screen_info.green_size,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 404) screen_info.blue_size,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 405) screen_info.rsvd_pos,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 406) screen_info.red_pos,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 407) screen_info.green_pos,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 408) screen_info.blue_pos);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 409)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 410) vesafb_fix.ypanstep = ypan ? 1 : 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 411) vesafb_fix.ywrapstep = (ypan>1) ? 1 : 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 412)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 413) /* request failure does not faze us, as vgacon probably has this
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 414) * region already (FIXME) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 415) par->region = request_region(0x3c0, 32, "vesafb");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 416)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 417) if (mtrr == 3) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 418) unsigned int temp_size = size_total;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 419)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 420) /* Find the largest power-of-two */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 421) temp_size = roundup_pow_of_two(temp_size);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 422)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 423) /* Try and find a power of two to add */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 424) do {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 425) par->wc_cookie =
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 426) arch_phys_wc_add(vesafb_fix.smem_start,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 427) temp_size);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 428) temp_size >>= 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 429) } while (temp_size >= PAGE_SIZE && par->wc_cookie < 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 430)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 431) info->screen_base = ioremap_wc(vesafb_fix.smem_start, vesafb_fix.smem_len);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 432) } else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 433) if (mtrr && mtrr != 3)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 434) WARN_ONCE(1, "Only MTRR_TYPE_WRCOMB (3) make sense\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 435) info->screen_base = ioremap(vesafb_fix.smem_start, vesafb_fix.smem_len);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 436) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 437)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 438) if (!info->screen_base) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 439) printk(KERN_ERR
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 440) "vesafb: abort, cannot ioremap video memory 0x%x @ 0x%lx\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 441) vesafb_fix.smem_len, vesafb_fix.smem_start);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 442) err = -EIO;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 443) goto err_release_region;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 444) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 445)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 446) printk(KERN_INFO "vesafb: framebuffer at 0x%lx, mapped to 0x%p, "
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 447) "using %dk, total %dk\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 448) vesafb_fix.smem_start, info->screen_base,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 449) size_remap/1024, size_total/1024);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 450)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 451) if (!ypan)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 452) vesafb_ops.fb_pan_display = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 453)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 454) info->fbops = &vesafb_ops;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 455) info->var = vesafb_defined;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 456) info->fix = vesafb_fix;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 457) info->flags = FBINFO_FLAG_DEFAULT | FBINFO_MISC_FIRMWARE |
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 458) (ypan ? FBINFO_HWACCEL_YPAN : 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 459)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 460) if (fb_alloc_cmap(&info->cmap, 256, 0) < 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 461) err = -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 462) goto err_release_region;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 463) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 464) if (register_framebuffer(info)<0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 465) err = -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 466) fb_dealloc_cmap(&info->cmap);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 467) goto err_release_region;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 468) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 469) fb_info(info, "%s frame buffer device\n", info->fix.id);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 470) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 471) err_release_region:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 472) arch_phys_wc_del(par->wc_cookie);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 473) if (info->screen_base)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 474) iounmap(info->screen_base);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 475) if (par->region)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 476) release_region(0x3c0, 32);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 477) err:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 478) framebuffer_release(info);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 479) release_mem_region(vesafb_fix.smem_start, size_total);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 480) return err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 481) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 482)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 483) static int vesafb_remove(struct platform_device *pdev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 484) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 485) struct fb_info *info = platform_get_drvdata(pdev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 486)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 487) unregister_framebuffer(info);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 488) if (((struct vesafb_par *)(info->par))->region)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 489) release_region(0x3c0, 32);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 490) framebuffer_release(info);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 491)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 492) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 493) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 494)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 495) static struct platform_driver vesafb_driver = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 496) .driver = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 497) .name = "vesa-framebuffer",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 498) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 499) .probe = vesafb_probe,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 500) .remove = vesafb_remove,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 501) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 502)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 503) module_platform_driver(vesafb_driver);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 504) MODULE_LICENSE("GPL");
Orange Pi5 kernel
Deprecated Linux kernel 5.10.110 for OrangePi 5/5B/5+ boards
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