^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) AudioScience HPI driver
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4) Common Linux HPI ioctl and module probe/remove functions
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 5)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 6) Copyright (C) 1997-2014 AudioScience Inc. <support@audioscience.com>
^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 SOURCEFILE_NAME "hpioctl.c"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12) #include "hpi_internal.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13) #include "hpi_version.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14) #include "hpimsginit.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15) #include "hpidebug.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16) #include "hpimsgx.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17) #include "hpioctl.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18) #include "hpicmn.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20) #include <linux/fs.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21) #include <linux/interrupt.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22) #include <linux/slab.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23) #include <linux/moduleparam.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24) #include <linux/uaccess.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25) #include <linux/pci.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26) #include <linux/stringify.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27) #include <linux/module.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28) #include <linux/vmalloc.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29) #include <linux/nospec.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31) #ifdef MODULE_FIRMWARE
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32) MODULE_FIRMWARE("asihpi/dsp5000.bin");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33) MODULE_FIRMWARE("asihpi/dsp6200.bin");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34) MODULE_FIRMWARE("asihpi/dsp6205.bin");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35) MODULE_FIRMWARE("asihpi/dsp6400.bin");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36) MODULE_FIRMWARE("asihpi/dsp6600.bin");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37) MODULE_FIRMWARE("asihpi/dsp8700.bin");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 38) MODULE_FIRMWARE("asihpi/dsp8900.bin");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 39) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 40)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 41) static int prealloc_stream_buf;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 42) module_param(prealloc_stream_buf, int, 0444);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 43) MODULE_PARM_DESC(prealloc_stream_buf,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 44) "Preallocate size for per-adapter stream buffer");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 45)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 46) /* Allow the debug level to be changed after module load.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 47) E.g. echo 2 > /sys/module/asihpi/parameters/hpiDebugLevel
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 48) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 49) module_param(hpi_debug_level, int, 0644);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 50) MODULE_PARM_DESC(hpi_debug_level, "debug verbosity 0..5");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 51)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 52) /* List of adapters found */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 53) static struct hpi_adapter adapters[HPI_MAX_ADAPTERS];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 54)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 55) /* Wrapper function to HPI_Message to enable dumping of the
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 56) message and response types.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 57) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 58) static void hpi_send_recv_f(struct hpi_message *phm, struct hpi_response *phr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 59) struct file *file)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 60) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 61) if ((phm->adapter_index >= HPI_MAX_ADAPTERS)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 62) && (phm->object != HPI_OBJ_SUBSYSTEM))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 63) phr->error = HPI_ERROR_INVALID_OBJ_INDEX;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 64) else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 65) hpi_send_recv_ex(phm, phr, file);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 66) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 67)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 68) /* This is called from hpifunc.c functions, called by ALSA
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 69) * (or other kernel process) In this case there is no file descriptor
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 70) * available for the message cache code
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 71) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 72) void hpi_send_recv(struct hpi_message *phm, struct hpi_response *phr)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 73) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 74) hpi_send_recv_f(phm, phr, HOWNER_KERNEL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 75) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 76)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 77) EXPORT_SYMBOL(hpi_send_recv);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 78) /* for radio-asihpi */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 79)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 80) int asihpi_hpi_release(struct file *file)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 81) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 82) struct hpi_message hm;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 83) struct hpi_response hr;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 84)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 85) /* HPI_DEBUG_LOG(INFO,"hpi_release file %p, pid %d\n", file, current->pid); */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 86) /* close the subsystem just in case the application forgot to. */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 87) hpi_init_message_response(&hm, &hr, HPI_OBJ_SUBSYSTEM,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 88) HPI_SUBSYS_CLOSE);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 89) hpi_send_recv_ex(&hm, &hr, file);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 90) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 91) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 92)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 93) long asihpi_hpi_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 94) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 95) struct hpi_ioctl_linux __user *phpi_ioctl_data;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 96) void __user *puhm;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 97) void __user *puhr;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 98) union hpi_message_buffer_v1 *hm;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 99) union hpi_response_buffer_v1 *hr;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 100) u16 msg_size;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 101) u16 res_max_size;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 102) u32 uncopied_bytes;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 103) int err = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 104)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 105) if (cmd != HPI_IOCTL_LINUX)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 106) return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 107)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 108) hm = kmalloc(sizeof(*hm), GFP_KERNEL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 109) hr = kzalloc(sizeof(*hr), GFP_KERNEL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 110) if (!hm || !hr) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 111) err = -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 112) goto out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 113) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 114)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 115) phpi_ioctl_data = (struct hpi_ioctl_linux __user *)arg;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 116)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 117) /* Read the message and response pointers from user space. */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 118) if (get_user(puhm, &phpi_ioctl_data->phm)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 119) || get_user(puhr, &phpi_ioctl_data->phr)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 120) err = -EFAULT;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 121) goto out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 122) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 123)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 124) /* Now read the message size and data from user space. */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 125) if (get_user(msg_size, (u16 __user *)puhm)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 126) err = -EFAULT;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 127) goto out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 128) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 129) if (msg_size > sizeof(*hm))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 130) msg_size = sizeof(*hm);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 131)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 132) /* printk(KERN_INFO "message size %d\n", hm->h.wSize); */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 133)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 134) uncopied_bytes = copy_from_user(hm, puhm, msg_size);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 135) if (uncopied_bytes) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 136) HPI_DEBUG_LOG(ERROR, "uncopied bytes %d\n", uncopied_bytes);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 137) err = -EFAULT;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 138) goto out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 139) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 140)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 141) /* Override h.size in case it is changed between two userspace fetches */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 142) hm->h.size = msg_size;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 143)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 144) if (get_user(res_max_size, (u16 __user *)puhr)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 145) err = -EFAULT;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 146) goto out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 147) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 148) /* printk(KERN_INFO "user response size %d\n", res_max_size); */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 149) if (res_max_size < sizeof(struct hpi_response_header)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 150) HPI_DEBUG_LOG(WARNING, "small res size %d\n", res_max_size);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 151) err = -EFAULT;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 152) goto out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 153) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 154)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 155) res_max_size = min_t(size_t, res_max_size, sizeof(*hr));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 156)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 157) switch (hm->h.function) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 158) case HPI_SUBSYS_CREATE_ADAPTER:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 159) case HPI_ADAPTER_DELETE:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 160) /* Application must not use these functions! */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 161) hr->h.size = sizeof(hr->h);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 162) hr->h.error = HPI_ERROR_INVALID_OPERATION;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 163) hr->h.function = hm->h.function;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 164) uncopied_bytes = copy_to_user(puhr, hr, hr->h.size);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 165) if (uncopied_bytes)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 166) err = -EFAULT;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 167) else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 168) err = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 169) goto out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 170) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 171)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 172) hr->h.size = res_max_size;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 173) if (hm->h.object == HPI_OBJ_SUBSYSTEM) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 174) hpi_send_recv_f(&hm->m0, &hr->r0, file);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 175) } else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 176) u16 __user *ptr = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 177) u32 size = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 178) /* -1=no data 0=read from user mem, 1=write to user mem */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 179) int wrflag = -1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 180) struct hpi_adapter *pa = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 181)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 182) if (hm->h.adapter_index < ARRAY_SIZE(adapters))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 183) pa = &adapters[array_index_nospec(hm->h.adapter_index,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 184) ARRAY_SIZE(adapters))];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 185)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 186) if (!pa || !pa->adapter || !pa->adapter->type) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 187) hpi_init_response(&hr->r0, hm->h.object,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 188) hm->h.function, HPI_ERROR_BAD_ADAPTER_NUMBER);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 189)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 190) uncopied_bytes =
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 191) copy_to_user(puhr, hr, sizeof(hr->h));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 192) if (uncopied_bytes)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 193) err = -EFAULT;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 194) else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 195) err = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 196) goto out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 197) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 198)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 199) if (mutex_lock_interruptible(&pa->mutex)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 200) err = -EINTR;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 201) goto out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 202) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 203)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 204) /* Dig out any pointers embedded in the message. */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 205) switch (hm->h.function) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 206) case HPI_OSTREAM_WRITE:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 207) case HPI_ISTREAM_READ:{
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 208) /* Yes, sparse, this is correct. */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 209) ptr = (u16 __user *)hm->m0.u.d.u.data.pb_data;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 210) size = hm->m0.u.d.u.data.data_size;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 211)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 212) /* Allocate buffer according to application request.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 213) ?Is it better to alloc/free for the duration
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 214) of the transaction?
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 215) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 216) if (pa->buffer_size < size) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 217) HPI_DEBUG_LOG(DEBUG,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 218) "Realloc adapter %d stream "
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 219) "buffer from %zd to %d\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 220) hm->h.adapter_index,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 221) pa->buffer_size, size);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 222) if (pa->p_buffer) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 223) pa->buffer_size = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 224) vfree(pa->p_buffer);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 225) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 226) pa->p_buffer = vmalloc(size);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 227) if (pa->p_buffer)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 228) pa->buffer_size = size;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 229) else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 230) HPI_DEBUG_LOG(ERROR,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 231) "HPI could not allocate "
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 232) "stream buffer size %d\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 233) size);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 234)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 235) mutex_unlock(&pa->mutex);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 236) err = -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 237) goto out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 238) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 239) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 240)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 241) hm->m0.u.d.u.data.pb_data = pa->p_buffer;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 242) if (hm->h.function == HPI_ISTREAM_READ)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 243) /* from card, WRITE to user mem */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 244) wrflag = 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 245) else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 246) wrflag = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 247) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 248) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 249)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 250) default:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 251) size = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 252) break;
^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) if (size && (wrflag == 0)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 256) uncopied_bytes =
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 257) copy_from_user(pa->p_buffer, ptr, size);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 258) if (uncopied_bytes)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 259) HPI_DEBUG_LOG(WARNING,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 260) "Missed %d of %d "
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 261) "bytes from user\n", uncopied_bytes,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 262) size);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 263) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 264)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 265) hpi_send_recv_f(&hm->m0, &hr->r0, file);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 266)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 267) if (size && (wrflag == 1)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 268) uncopied_bytes =
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 269) copy_to_user(ptr, pa->p_buffer, size);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 270) if (uncopied_bytes)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 271) HPI_DEBUG_LOG(WARNING,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 272) "Missed %d of %d " "bytes to user\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 273) uncopied_bytes, size);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 274) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 275)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 276) mutex_unlock(&pa->mutex);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 277) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 278)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 279) /* on return response size must be set */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 280) /*printk(KERN_INFO "response size %d\n", hr->h.wSize); */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 281)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 282) if (!hr->h.size) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 283) HPI_DEBUG_LOG(ERROR, "response zero size\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 284) err = -EFAULT;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 285) goto out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 286) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 287)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 288) if (hr->h.size > res_max_size) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 289) HPI_DEBUG_LOG(ERROR, "response too big %d %d\n", hr->h.size,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 290) res_max_size);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 291) hr->h.error = HPI_ERROR_RESPONSE_BUFFER_TOO_SMALL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 292) hr->h.specific_error = hr->h.size;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 293) hr->h.size = sizeof(hr->h);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 294) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 295)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 296) uncopied_bytes = copy_to_user(puhr, hr, hr->h.size);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 297) if (uncopied_bytes) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 298) HPI_DEBUG_LOG(ERROR, "uncopied bytes %d\n", uncopied_bytes);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 299) err = -EFAULT;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 300) goto out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 301) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 302)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 303) out:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 304) kfree(hm);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 305) kfree(hr);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 306) return err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 307) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 308)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 309) static int asihpi_irq_count;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 310)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 311) static irqreturn_t asihpi_isr(int irq, void *dev_id)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 312) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 313) struct hpi_adapter *a = dev_id;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 314) int handled;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 315)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 316) if (!a->adapter->irq_query_and_clear) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 317) pr_err("asihpi_isr ASI%04X:%d no handler\n", a->adapter->type,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 318) a->adapter->index);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 319) return IRQ_NONE;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 320) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 321)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 322) handled = a->adapter->irq_query_and_clear(a->adapter, 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 323)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 324) if (!handled)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 325) return IRQ_NONE;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 326)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 327) asihpi_irq_count++;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 328) /* printk(KERN_INFO "asihpi_isr %d ASI%04X:%d irq handled\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 329) asihpi_irq_count, a->adapter->type, a->adapter->index); */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 330)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 331) if (a->interrupt_callback)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 332) return IRQ_WAKE_THREAD;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 333)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 334) return IRQ_HANDLED;
^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) static irqreturn_t asihpi_isr_thread(int irq, void *dev_id)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 338) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 339) struct hpi_adapter *a = dev_id;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 340)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 341) if (a->interrupt_callback)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 342) a->interrupt_callback(a);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 343) return IRQ_HANDLED;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 344) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 345)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 346) int asihpi_adapter_probe(struct pci_dev *pci_dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 347) const struct pci_device_id *pci_id)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 348) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 349) int idx, nm, low_latency_mode = 0, irq_supported = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 350) int adapter_index;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 351) unsigned int memlen;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 352) struct hpi_message hm;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 353) struct hpi_response hr;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 354) struct hpi_adapter adapter;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 355) struct hpi_pci pci = { 0 };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 356)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 357) memset(&adapter, 0, sizeof(adapter));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 358)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 359) dev_printk(KERN_DEBUG, &pci_dev->dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 360) "probe %04x:%04x,%04x:%04x,%04x\n", pci_dev->vendor,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 361) pci_dev->device, pci_dev->subsystem_vendor,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 362) pci_dev->subsystem_device, pci_dev->devfn);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 363)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 364) if (pci_enable_device(pci_dev) < 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 365) dev_err(&pci_dev->dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 366) "pci_enable_device failed, disabling device\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 367) return -EIO;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 368) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 369)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 370) pci_set_master(pci_dev); /* also sets latency timer if < 16 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 371)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 372) hpi_init_message_response(&hm, &hr, HPI_OBJ_SUBSYSTEM,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 373) HPI_SUBSYS_CREATE_ADAPTER);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 374) hpi_init_response(&hr, HPI_OBJ_SUBSYSTEM, HPI_SUBSYS_CREATE_ADAPTER,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 375) HPI_ERROR_PROCESSING_MESSAGE);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 376)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 377) hm.adapter_index = HPI_ADAPTER_INDEX_INVALID;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 378)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 379) nm = HPI_MAX_ADAPTER_MEM_SPACES;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 380)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 381) for (idx = 0; idx < nm; idx++) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 382) HPI_DEBUG_LOG(INFO, "resource %d %pR\n", idx,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 383) &pci_dev->resource[idx]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 384)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 385) if (pci_resource_flags(pci_dev, idx) & IORESOURCE_MEM) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 386) memlen = pci_resource_len(pci_dev, idx);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 387) pci.ap_mem_base[idx] =
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 388) ioremap(pci_resource_start(pci_dev, idx),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 389) memlen);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 390) if (!pci.ap_mem_base[idx]) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 391) HPI_DEBUG_LOG(ERROR,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 392) "ioremap failed, aborting\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 393) /* unmap previously mapped pci mem space */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 394) goto err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 395) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 396) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 397) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 398)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 399) pci.pci_dev = pci_dev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 400) hm.u.s.resource.bus_type = HPI_BUS_PCI;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 401) hm.u.s.resource.r.pci = &pci;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 402)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 403) /* call CreateAdapterObject on the relevant hpi module */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 404) hpi_send_recv_ex(&hm, &hr, HOWNER_KERNEL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 405) if (hr.error)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 406) goto err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 407)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 408) adapter_index = hr.u.s.adapter_index;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 409) adapter.adapter = hpi_find_adapter(adapter_index);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 410)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 411) if (prealloc_stream_buf) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 412) adapter.p_buffer = vmalloc(prealloc_stream_buf);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 413) if (!adapter.p_buffer) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 414) HPI_DEBUG_LOG(ERROR,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 415) "HPI could not allocate "
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 416) "kernel buffer size %d\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 417) prealloc_stream_buf);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 418) goto err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 419) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 420) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 421)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 422) hpi_init_message_response(&hm, &hr, HPI_OBJ_ADAPTER,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 423) HPI_ADAPTER_OPEN);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 424) hm.adapter_index = adapter.adapter->index;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 425) hpi_send_recv_ex(&hm, &hr, HOWNER_KERNEL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 426)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 427) if (hr.error) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 428) HPI_DEBUG_LOG(ERROR, "HPI_ADAPTER_OPEN failed, aborting\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 429) goto err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 430) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 431)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 432) /* Check if current mode == Low Latency mode */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 433) hpi_init_message_response(&hm, &hr, HPI_OBJ_ADAPTER,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 434) HPI_ADAPTER_GET_MODE);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 435) hm.adapter_index = adapter.adapter->index;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 436) hpi_send_recv_ex(&hm, &hr, HOWNER_KERNEL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 437)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 438) if (!hr.error
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 439) && hr.u.ax.mode.adapter_mode == HPI_ADAPTER_MODE_LOW_LATENCY)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 440) low_latency_mode = 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 441) else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 442) dev_info(&pci_dev->dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 443) "Adapter at index %d is not in low latency mode\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 444) adapter.adapter->index);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 445)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 446) /* Check if IRQs are supported */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 447) hpi_init_message_response(&hm, &hr, HPI_OBJ_ADAPTER,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 448) HPI_ADAPTER_GET_PROPERTY);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 449) hm.adapter_index = adapter.adapter->index;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 450) hm.u.ax.property_set.property = HPI_ADAPTER_PROPERTY_SUPPORTS_IRQ;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 451) hpi_send_recv_ex(&hm, &hr, HOWNER_KERNEL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 452) if (hr.error || !hr.u.ax.property_get.parameter1) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 453) dev_info(&pci_dev->dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 454) "IRQs not supported by adapter at index %d\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 455) adapter.adapter->index);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 456) } else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 457) irq_supported = 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 458) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 459)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 460) /* WARNING can't init mutex in 'adapter'
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 461) * and then copy it to adapters[] ?!?!
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 462) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 463) adapters[adapter_index] = adapter;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 464) mutex_init(&adapters[adapter_index].mutex);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 465) pci_set_drvdata(pci_dev, &adapters[adapter_index]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 466)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 467) if (low_latency_mode && irq_supported) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 468) if (!adapter.adapter->irq_query_and_clear) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 469) dev_err(&pci_dev->dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 470) "no IRQ handler for adapter %d, aborting\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 471) adapter.adapter->index);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 472) goto err;
^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) /* Disable IRQ generation on DSP side by setting the rate to 0 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 476) hpi_init_message_response(&hm, &hr, HPI_OBJ_ADAPTER,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 477) HPI_ADAPTER_SET_PROPERTY);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 478) hm.adapter_index = adapter.adapter->index;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 479) hm.u.ax.property_set.property = HPI_ADAPTER_PROPERTY_IRQ_RATE;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 480) hm.u.ax.property_set.parameter1 = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 481) hm.u.ax.property_set.parameter2 = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 482) hpi_send_recv_ex(&hm, &hr, HOWNER_KERNEL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 483) if (hr.error) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 484) HPI_DEBUG_LOG(ERROR,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 485) "HPI_ADAPTER_GET_MODE failed, aborting\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 486) goto err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 487) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 488)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 489) /* Note: request_irq calls asihpi_isr here */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 490) if (request_threaded_irq(pci_dev->irq, asihpi_isr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 491) asihpi_isr_thread, IRQF_SHARED,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 492) "asihpi", &adapters[adapter_index])) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 493) dev_err(&pci_dev->dev, "request_irq(%d) failed\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 494) pci_dev->irq);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 495) goto err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 496) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 497)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 498) adapters[adapter_index].interrupt_mode = 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 499)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 500) dev_info(&pci_dev->dev, "using irq %d\n", pci_dev->irq);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 501) adapters[adapter_index].irq = pci_dev->irq;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 502) } else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 503) dev_info(&pci_dev->dev, "using polled mode\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 504) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 505)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 506) dev_info(&pci_dev->dev, "probe succeeded for ASI%04X HPI index %d\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 507) adapter.adapter->type, adapter_index);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 508)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 509) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 510)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 511) err:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 512) while (--idx >= 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 513) if (pci.ap_mem_base[idx]) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 514) iounmap(pci.ap_mem_base[idx]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 515) pci.ap_mem_base[idx] = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 516) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 517) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 518)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 519) if (adapter.p_buffer) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 520) adapter.buffer_size = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 521) vfree(adapter.p_buffer);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 522) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 523)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 524) HPI_DEBUG_LOG(ERROR, "adapter_probe failed\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 525) return -ENODEV;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 526) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 527)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 528) void asihpi_adapter_remove(struct pci_dev *pci_dev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 529) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 530) int idx;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 531) struct hpi_message hm;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 532) struct hpi_response hr;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 533) struct hpi_adapter *pa;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 534) struct hpi_pci pci;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 535)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 536) pa = pci_get_drvdata(pci_dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 537) pci = pa->adapter->pci;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 538)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 539) /* Disable IRQ generation on DSP side */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 540) hpi_init_message_response(&hm, &hr, HPI_OBJ_ADAPTER,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 541) HPI_ADAPTER_SET_PROPERTY);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 542) hm.adapter_index = pa->adapter->index;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 543) hm.u.ax.property_set.property = HPI_ADAPTER_PROPERTY_IRQ_RATE;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 544) hm.u.ax.property_set.parameter1 = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 545) hm.u.ax.property_set.parameter2 = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 546) hpi_send_recv_ex(&hm, &hr, HOWNER_KERNEL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 547)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 548) hpi_init_message_response(&hm, &hr, HPI_OBJ_ADAPTER,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 549) HPI_ADAPTER_DELETE);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 550) hm.adapter_index = pa->adapter->index;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 551) hpi_send_recv_ex(&hm, &hr, HOWNER_KERNEL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 552)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 553) /* unmap PCI memory space, mapped during device init. */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 554) for (idx = 0; idx < HPI_MAX_ADAPTER_MEM_SPACES; ++idx)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 555) iounmap(pci.ap_mem_base[idx]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 556)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 557) if (pa->irq)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 558) free_irq(pa->irq, pa);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 559)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 560) vfree(pa->p_buffer);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 561)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 562) if (1)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 563) dev_info(&pci_dev->dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 564) "remove %04x:%04x,%04x:%04x,%04x, HPI index %d\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 565) pci_dev->vendor, pci_dev->device,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 566) pci_dev->subsystem_vendor, pci_dev->subsystem_device,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 567) pci_dev->devfn, pa->adapter->index);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 568)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 569) memset(pa, 0, sizeof(*pa));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 570) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 571)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 572) void __init asihpi_init(void)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 573) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 574) struct hpi_message hm;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 575) struct hpi_response hr;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 576)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 577) memset(adapters, 0, sizeof(adapters));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 578)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 579) printk(KERN_INFO "ASIHPI driver " HPI_VER_STRING "\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 580)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 581) hpi_init_message_response(&hm, &hr, HPI_OBJ_SUBSYSTEM,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 582) HPI_SUBSYS_DRIVER_LOAD);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 583) hpi_send_recv_ex(&hm, &hr, HOWNER_KERNEL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 584) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 585)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 586) void asihpi_exit(void)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 587) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 588) struct hpi_message hm;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 589) struct hpi_response hr;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 590)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 591) hpi_init_message_response(&hm, &hr, HPI_OBJ_SUBSYSTEM,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 592) HPI_SUBSYS_DRIVER_UNLOAD);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 593) hpi_send_recv_ex(&hm, &hr, HOWNER_KERNEL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 594) }
Orange Pi5 kernel
Deprecated Linux kernel 5.10.110 for OrangePi 5/5B/5+ boards
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