- 根目录:
- drivers
- staging
- csr
- putest.c
/*
* ***************************************************************************
* FILE: putest.c
*
* PURPOSE: putest related functions.
*
* Copyright (C) 2008-2009 by Cambridge Silicon Radio Ltd.
*
* Refer to LICENSE.txt included with this source code for details on
* the license terms.
*
* ***************************************************************************
*/
#include <linux/vmalloc.h>
#include <linux/firmware.h>
#include "unifi_priv.h"
#include "csr_wifi_hip_chiphelper.h"
#define UNIFI_PROC_BOTH 3
int unifi_putest_cmd52_read(unifi_priv_t *priv, unsigned char *arg)
{
struct unifi_putest_cmd52 cmd52_params;
u8 *arg_pos;
unsigned int cmd_param_size;
int r;
CsrResult csrResult;
unsigned char ret_buffer[32];
u8 *ret_buffer_pos;
u8 retries;
arg_pos = (u8*)(((unifi_putest_command_t*)arg) + 1);
if (get_user(cmd_param_size, (int*)arg_pos)) {
unifi_error(priv,
"unifi_putest_cmd52_read: Failed to get the argument\n");
return -EFAULT;
}
if (cmd_param_size != sizeof(struct unifi_putest_cmd52)) {
unifi_error(priv,
"unifi_putest_cmd52_read: cmd52 struct mismatch\n");
return -EINVAL;
}
arg_pos += sizeof(unsigned int);
if (copy_from_user(&cmd52_params,
(void*)arg_pos,
sizeof(struct unifi_putest_cmd52))) {
unifi_error(priv,
"unifi_putest_cmd52_read: Failed to get the cmd52 params\n");
return -EFAULT;
}
unifi_trace(priv, UDBG2, "cmd52r: func=%d addr=0x%x ",
cmd52_params.funcnum, cmd52_params.addr);
retries = 3;
CsrSdioClaim(priv->sdio);
do {
if (cmd52_params.funcnum == 0) {
csrResult = CsrSdioF0Read8(priv->sdio, cmd52_params.addr, &cmd52_params.data);
} else {
csrResult = CsrSdioRead8(priv->sdio, cmd52_params.addr, &cmd52_params.data);
}
} while (--retries && ((csrResult == CSR_SDIO_RESULT_CRC_ERROR) || (csrResult == CSR_SDIO_RESULT_TIMEOUT)));
CsrSdioRelease(priv->sdio);
if (csrResult != CSR_RESULT_SUCCESS) {
unifi_error(priv,
"\nunifi_putest_cmd52_read: Read8() failed (csrResult=0x%x)\n", csrResult);
return -EFAULT;
}
unifi_trace(priv, UDBG2, "data=%d\n", cmd52_params.data);
/* Copy the info to the out buffer */
*(unifi_putest_command_t*)ret_buffer = UNIFI_PUTEST_CMD52_READ;
ret_buffer_pos = (u8*)(((unifi_putest_command_t*)ret_buffer) + 1);
*(unsigned int*)ret_buffer_pos = sizeof(struct unifi_putest_cmd52);
ret_buffer_pos += sizeof(unsigned int);
memcpy(ret_buffer_pos, &cmd52_params, sizeof(struct unifi_putest_cmd52));
ret_buffer_pos += sizeof(struct unifi_putest_cmd52);
r = copy_to_user((void*)arg,
ret_buffer,
ret_buffer_pos - ret_buffer);
if (r) {
unifi_error(priv,
"unifi_putest_cmd52_read: Failed to return the data\n");
return -EFAULT;
}
return 0;
}
int unifi_putest_cmd52_write(unifi_priv_t *priv, unsigned char *arg)
{
struct unifi_putest_cmd52 cmd52_params;
u8 *arg_pos;
unsigned int cmd_param_size;
CsrResult csrResult;
u8 retries;
arg_pos = (u8*)(((unifi_putest_command_t*)arg) + 1);
if (get_user(cmd_param_size, (int*)arg_pos)) {
unifi_error(priv,
"unifi_putest_cmd52_write: Failed to get the argument\n");
return -EFAULT;
}
if (cmd_param_size != sizeof(struct unifi_putest_cmd52)) {
unifi_error(priv,
"unifi_putest_cmd52_write: cmd52 struct mismatch\n");
return -EINVAL;
}
arg_pos += sizeof(unsigned int);
if (copy_from_user(&cmd52_params,
(void*)(arg_pos),
sizeof(struct unifi_putest_cmd52))) {
unifi_error(priv,
"unifi_putest_cmd52_write: Failed to get the cmd52 params\n");
return -EFAULT;
}
unifi_trace(priv, UDBG2, "cmd52w: func=%d addr=0x%x data=%d\n",
cmd52_params.funcnum, cmd52_params.addr, cmd52_params.data);
retries = 3;
CsrSdioClaim(priv->sdio);
do {
if (cmd52_params.funcnum == 0) {
csrResult = CsrSdioF0Write8(priv->sdio, cmd52_params.addr, cmd52_params.data);
} else {
csrResult = CsrSdioWrite8(priv->sdio, cmd52_params.addr, cmd52_params.data);
}
} while (--retries && ((csrResult == CSR_SDIO_RESULT_CRC_ERROR) || (csrResult == CSR_SDIO_RESULT_TIMEOUT)));
CsrSdioRelease(priv->sdio);
if (csrResult != CSR_RESULT_SUCCESS) {
unifi_error(priv,
"unifi_putest_cmd52_write: Write8() failed (csrResult=0x%x)\n", csrResult);
return -EFAULT;
}
return 0;
}
int unifi_putest_gp_read16(unifi_priv_t *priv, unsigned char *arg)
{
struct unifi_putest_gp_rw16 gp_r16_params;
u8 *arg_pos;
unsigned int cmd_param_size;
int r;
CsrResult csrResult;
unsigned char ret_buffer[32];
u8 *ret_buffer_pos;
arg_pos = (u8*)(((unifi_putest_command_t*)arg) + 1);
if (get_user(cmd_param_size, (int*)arg_pos)) {
unifi_error(priv,
"unifi_putest_gp_read16: Failed to get the argument\n");
return -EFAULT;
}
if (cmd_param_size != sizeof(struct unifi_putest_gp_rw16)) {
unifi_error(priv,
"unifi_putest_gp_read16: struct mismatch\n");
return -EINVAL;
}
arg_pos += sizeof(unsigned int);
if (copy_from_user(&gp_r16_params,
(void*)arg_pos,
sizeof(struct unifi_putest_gp_rw16))) {
unifi_error(priv,
"unifi_putest_gp_read16: Failed to get the params\n");
return -EFAULT;
}
CsrSdioClaim(priv->sdio);
csrResult = unifi_card_read16(priv->card, gp_r16_params.addr, &gp_r16_params.data);
CsrSdioRelease(priv->sdio);
if (csrResult != CSR_RESULT_SUCCESS) {
unifi_error(priv,
"unifi_putest_gp_read16: unifi_card_read16() GP=0x%x failed (csrResult=0x%x)\n", gp_r16_params.addr, csrResult);
return -EFAULT;
}
unifi_trace(priv, UDBG2, "gp_r16: GP=0x%08x, data=0x%04x\n", gp_r16_params.addr, gp_r16_params.data);
/* Copy the info to the out buffer */
*(unifi_putest_command_t*)ret_buffer = UNIFI_PUTEST_GP_READ16;
ret_buffer_pos = (u8*)(((unifi_putest_command_t*)ret_buffer) + 1);
*(unsigned int*)ret_buffer_pos = sizeof(struct unifi_putest_gp_rw16);
ret_buffer_pos += sizeof(unsigned int);
memcpy(ret_buffer_pos, &gp_r16_params, sizeof(struct unifi_putest_gp_rw16));
ret_buffer_pos += sizeof(struct unifi_putest_gp_rw16);
r = copy_to_user((void*)arg,
ret_buffer,
ret_buffer_pos - ret_buffer);
if (r) {
unifi_error(priv,
"unifi_putest_gp_read16: Failed to return the data\n");
return -EFAULT;
}
return 0;
}
int unifi_putest_gp_write16(unifi_priv_t *priv, unsigned char *arg)
{
struct unifi_putest_gp_rw16 gp_w16_params;
u8 *arg_pos;
unsigned int cmd_param_size;
CsrResult csrResult;
arg_pos = (u8*)(((unifi_putest_command_t*)arg) + 1);
if (get_user(cmd_param_size, (int*)arg_pos)) {
unifi_error(priv,
"unifi_putest_gp_write16: Failed to get the argument\n");
return -EFAULT;
}
if (cmd_param_size != sizeof(struct unifi_putest_gp_rw16)) {
unifi_error(priv,
"unifi_putest_gp_write16: struct mismatch\n");
return -EINVAL;
}
arg_pos += sizeof(unsigned int);
if (copy_from_user(&gp_w16_params,
(void*)(arg_pos),
sizeof(struct unifi_putest_gp_rw16))) {
unifi_error(priv,
"unifi_putest_gp_write16: Failed to get the params\n");
return -EFAULT;
}
unifi_trace(priv, UDBG2, "gp_w16: GP=0x%08x, data=0x%04x\n", gp_w16_params.addr, gp_w16_params.data);
CsrSdioClaim(priv->sdio);
csrResult = unifi_card_write16(priv->card, gp_w16_params.addr, gp_w16_params.data);
CsrSdioRelease(priv->sdio);
if (csrResult != CSR_RESULT_SUCCESS) {
unifi_error(priv,
"unifi_putest_gp_write16: unifi_card_write16() GP=%x failed (csrResult=0x%x)\n", gp_w16_params.addr, csrResult);
return -EFAULT;
}
return 0;
}
int unifi_putest_set_sdio_clock(unifi_priv_t *priv, unsigned char *arg)
{
int sdio_clock_speed;
CsrResult csrResult;
if (get_user(sdio_clock_speed, (int*)(((unifi_putest_command_t*)arg) + 1))) {
unifi_error(priv,
"unifi_putest_set_sdio_clock: Failed to get the argument\n");
return -EFAULT;
}
unifi_trace(priv, UDBG2, "set sdio clock: %d KHz\n", sdio_clock_speed);
CsrSdioClaim(priv->sdio);
csrResult = CsrSdioMaxBusClockFrequencySet(priv->sdio, sdio_clock_speed * 1000);
CsrSdioRelease(priv->sdio);
if (csrResult != CSR_RESULT_SUCCESS) {
unifi_error(priv,
"unifi_putest_set_sdio_clock: Set clock failed (csrResult=0x%x)\n", csrResult);
return -EFAULT;
}
return 0;
}
int unifi_putest_start(unifi_priv_t *priv, unsigned char *arg)
{
int r;
CsrResult csrResult;
int already_in_test = priv->ptest_mode;
/* Ensure that sme_sys_suspend() doesn't power down the chip because:
* 1) Power is needed anyway for ptest.
* 2) The app code uses the START ioctl as a reset, so it gets called
* multiple times. If the app stops the XAPs, but the power_down/up
* sequence doesn't actually power down the chip, there can be problems
* resetting, because part of the power_up sequence disables function 1
*/
priv->ptest_mode = 1;
/* Suspend the SME and UniFi */
if (priv->sme_cli) {
r = sme_sys_suspend(priv);
if (r) {
unifi_error(priv,
"unifi_putest_start: failed to suspend UniFi\n");
return r;
}
}
/* Application may have stopped the XAPs, but they are needed for reset */
if (already_in_test) {
CsrSdioClaim(priv->sdio);
csrResult = unifi_start_processors(priv->card);
CsrSdioRelease(priv->sdio);
if (csrResult != CSR_RESULT_SUCCESS) {
unifi_error(priv, "Failed to start XAPs. Hard reset required.\n");
}
} else {
/* Ensure chip is powered for the case where there's no unifi_helper */
CsrSdioClaim(priv->sdio);
csrResult = CsrSdioPowerOn(priv->sdio);
CsrSdioRelease(priv->sdio);
if (csrResult != CSR_RESULT_SUCCESS) {
unifi_error(priv, "CsrSdioPowerOn csrResult = %d\n", csrResult);
}
}
CsrSdioClaim(priv->sdio);
csrResult = unifi_init(priv->card);
CsrSdioRelease(priv->sdio);
if (csrResult != CSR_RESULT_SUCCESS) {
unifi_error(priv,
"unifi_putest_start: failed to init UniFi\n");
return CsrHipResultToStatus(csrResult);
}
return 0;
}
int unifi_putest_stop(unifi_priv_t *priv, unsigned char *arg)
{
int r = 0;
CsrResult csrResult;
/* Application may have stopped the XAPs, but they are needed for reset */
CsrSdioClaim(priv->sdio);
csrResult = unifi_start_processors(priv->card);
CsrSdioRelease(priv->sdio);
if (csrResult != CSR_RESULT_SUCCESS) {
unifi_error(priv, "Failed to start XAPs. Hard reset required.\n");
}
/* PUTEST_STOP is also used to resume the XAPs after SME coredump.
* Don't power off the chip, leave that to the normal wifi-off which is
* about to carry on. No need to resume the SME either, as it wasn't suspended.
*/
if (priv->coredump_mode) {
priv->coredump_mode = 0;
return 0;
}
/* At this point function 1 is enabled and the XAPs are running, so it is
* safe to let the card power down. Power is restored later, asynchronously,
* during the wifi_on requested by the SME.
*/
CsrSdioClaim(priv->sdio);
CsrSdioPowerOff(priv->sdio);
CsrSdioRelease(priv->sdio);
/* Resume the SME and UniFi */
if (priv->sme_cli) {
r = sme_sys_resume(priv);
if (r) {
unifi_error(priv,
"unifi_putest_stop: failed to resume SME\n");
}
}
priv->ptest_mode = 0;
return r;
}
int unifi_putest_dl_fw(unifi_priv_t *priv, unsigned char *arg)
{
#define UF_PUTEST_MAX_FW_FILE_NAME 16
#define UNIFI_MAX_FW_PATH_LEN 32
unsigned int fw_name_length;
unsigned char fw_name[UF_PUTEST_MAX_FW_FILE_NAME+1];
unsigned char *name_buffer;
int postfix;
char fw_path[UNIFI_MAX_FW_PATH_LEN];
const struct firmware *fw_entry;
struct dlpriv temp_fw_sta;
int r;
CsrResult csrResult;
/* Get the f/w file name length */
if (get_user(fw_name_length, (unsigned int*)(((unifi_putest_command_t*)arg) + 1))) {
unifi_error(priv,
"unifi_putest_dl_fw: Failed to get the length argument\n");
return -EFAULT;
}
unifi_trace(priv, UDBG2, "unifi_putest_dl_fw: file name size = %d\n", fw_name_length);
/* Sanity check for the f/w file name length */
if (fw_name_length > UF_PUTEST_MAX_FW_FILE_NAME) {
unifi_error(priv,
"unifi_putest_dl_fw: F/W file name is too long\n");
return -EINVAL;
}
/* Get the f/w file name */
name_buffer = ((unsigned char*)arg) + sizeof(unifi_putest_command_t) + sizeof(unsigned int);
if (copy_from_user(fw_name, (void*)name_buffer, fw_name_length)) {
unifi_error(priv, "unifi_putest_dl_fw: Failed to get the file name\n");
return -EFAULT;
}
fw_name[fw_name_length] = '\0';
unifi_trace(priv, UDBG2, "unifi_putest_dl_fw: file = %s\n", fw_name);
/* Keep the existing f/w to a temp, we need to restore it later */
temp_fw_sta = priv->fw_sta;
/* Get the putest f/w */
postfix = priv->instance;
scnprintf(fw_path, UNIFI_MAX_FW_PATH_LEN, "unifi-sdio-%d/%s",
postfix, fw_name);
r = request_firmware(&fw_entry, fw_path, priv->unifi_device);
if (r == 0) {
priv->fw_sta.fw_desc = (void *)fw_entry;
priv->fw_sta.dl_data = fw_entry->data;
priv->fw_sta.dl_len = fw_entry->size;
} else {
unifi_error(priv, "Firmware file not available\n");
return -EINVAL;
}
/* Application may have stopped the XAPs, but they are needed for reset */
CsrSdioClaim(priv->sdio);
csrResult = unifi_start_processors(priv->card);
CsrSdioRelease(priv->sdio);
if (csrResult != CSR_RESULT_SUCCESS) {
unifi_error(priv, "Failed to start XAPs. Hard reset required.\n");
}
/* Download the f/w. On UF6xxx this will cause the f/w file to convert
* into patch format and download via the ROM boot loader
*/
CsrSdioClaim(priv->sdio);
csrResult = unifi_download(priv->card, 0x0c00);
CsrSdioRelease(priv->sdio);
if (csrResult != CSR_RESULT_SUCCESS) {
unifi_error(priv,
"unifi_putest_dl_fw: failed to download the f/w\n");
goto free_fw;
}
/* Free the putest f/w... */
free_fw:
uf_release_firmware(priv, &priv->fw_sta);
/* ... and restore the original f/w */
priv->fw_sta = temp_fw_sta;
return CsrHipResultToStatus(csrResult);
}
int unifi_putest_dl_fw_buff(unifi_priv_t *priv, unsigned char *arg)
{
unsigned int fw_length;
unsigned char *fw_buf = NULL;
unsigned char *fw_user_ptr;
struct dlpriv temp_fw_sta;
CsrResult csrResult;
/* Get the f/w buffer length */
if (get_user(fw_length, (unsigned int*)(((unifi_putest_command_t*)arg) + 1))) {
unifi_error(priv,
"unifi_putest_dl_fw_buff: Failed to get the length arg\n");
return -EFAULT;
}
unifi_trace(priv, UDBG2, "unifi_putest_dl_fw_buff: size = %d\n", fw_length);
/* Sanity check for the buffer length */
if (fw_length == 0 || fw_length > 0xfffffff) {
unifi_error(priv,
"unifi_putest_dl_fw_buff: buffer length bad %u\n", fw_length);
return -EINVAL;
}
/* Buffer for kernel copy of the f/w image */
fw_buf = kmalloc(fw_length, GFP_KERNEL);
if (!fw_buf) {
unifi_error(priv, "unifi_putest_dl_fw_buff: malloc fail\n");
return -ENOMEM;
}
/* Get the f/w image */
fw_user_ptr = ((unsigned char*)arg) + sizeof(unifi_putest_command_t) + sizeof(unsigned int);
if (copy_from_user(fw_buf, (void*)fw_user_ptr, fw_length)) {
unifi_error(priv, "unifi_putest_dl_fw_buff: Failed to get the buffer\n");
kfree(fw_buf);
return -EFAULT;
}
/* Save the existing f/w to a temp, we need to restore it later */
temp_fw_sta = priv->fw_sta;
/* Setting fw_desc NULL indicates to the core that no f/w file was loaded
* via the kernel request_firmware() mechanism. This indicates to the core
* that it shouldn't call release_firmware() after the download is done.
*/
priv->fw_sta.fw_desc = NULL; /* No OS f/w resource */
priv->fw_sta.dl_data = fw_buf;
priv->fw_sta.dl_len = fw_length;
/* Application may have stopped the XAPs, but they are needed for reset */
CsrSdioClaim(priv->sdio);
csrResult = unifi_start_processors(priv->card);
CsrSdioRelease(priv->sdio);
if (csrResult != CSR_RESULT_SUCCESS) {
unifi_error(priv, "Failed to start XAPs. Hard reset required.\n");
}
/* Download the f/w. On UF6xxx this will cause the f/w file to convert
* into patch format and download via the ROM boot loader
*/
CsrSdioClaim(priv->sdio);
csrResult = unifi_download(priv->card, 0x0c00);
CsrSdioRelease(priv->sdio);
if (csrResult != CSR_RESULT_SUCCESS) {
unifi_error(priv,
"unifi_putest_dl_fw_buff: failed to download the f/w\n");
goto free_fw;
}
free_fw:
/* Finished with the putest f/w, so restore the station f/w */
priv->fw_sta = temp_fw_sta;
kfree(fw_buf);
return CsrHipResultToStatus(csrResult);
}
int unifi_putest_coredump_prepare(unifi_priv_t *priv, unsigned char *arg)
{
u16 data_u16;
s32 i;
CsrResult r;
unifi_info(priv, "Preparing for SDIO coredump\n");
#if defined (CSR_WIFI_HIP_DEBUG_OFFLINE)
unifi_debug_buf_dump();
#endif
/* Sanity check that userspace hasn't called a PUTEST_START, because that
* would have reset UniFi, potentially power cycling it and losing context
*/
if (priv->ptest_mode) {
unifi_error(priv, "PUTEST_START shouldn't be used before a coredump\n");
}
/* Flag that the userspace has requested coredump. Even if this preparation
* fails, the SME will call PUTEST_STOP to tidy up.
*/
priv->coredump_mode = 1;
for (i = 0; i < 3; i++) {
CsrSdioClaim(priv->sdio);
r = CsrSdioRead16(priv->sdio, CHIP_HELPER_UNIFI_GBL_CHIP_VERSION*2, &data_u16);
CsrSdioRelease(priv->sdio);
if (r != CSR_RESULT_SUCCESS) {
unifi_info(priv, "Failed to read chip version! Try %d\n", i);
/* First try, re-enable function which may have been disabled by f/w panic */
if (i == 0) {
unifi_info(priv, "Try function enable\n");
CsrSdioClaim(priv->sdio);
r = CsrSdioFunctionEnable(priv->sdio);
CsrSdioRelease(priv->sdio);
if (r != CSR_RESULT_SUCCESS) {
unifi_error(priv, "CsrSdioFunctionEnable failed %d\n", r);
}
continue;
}
/* Subsequent tries, reset */
/* Set clock speed low */
CsrSdioClaim(priv->sdio);
r = CsrSdioMaxBusClockFrequencySet(priv->sdio, UNIFI_SDIO_CLOCK_SAFE_HZ);
CsrSdioRelease(priv->sdio);
if (r != CSR_RESULT_SUCCESS) {
unifi_error(priv, "CsrSdioMaxBusClockFrequencySet() failed %d\n", r);
}
/* Card software reset */
CsrSdioClaim(priv->sdio);
r = unifi_card_hard_reset(priv->card);
CsrSdioRelease(priv->sdio);
if (r != CSR_RESULT_SUCCESS) {
unifi_error(priv, "unifi_card_hard_reset() failed %d\n", r);
}
} else {
unifi_info(priv, "Read chip version of 0x%04x\n", data_u16);
break;
}
}
if (r != CSR_RESULT_SUCCESS) {
unifi_error(priv, "Failed to prepare chip\n");
return -EIO;
}
/* Stop the XAPs for coredump. The PUTEST_STOP must be called, e.g. at
* Raw SDIO deinit, to resume them.
*/
CsrSdioClaim(priv->sdio);
r = unifi_card_stop_processor(priv->card, UNIFI_PROC_BOTH);
CsrSdioRelease(priv->sdio);
if (r != CSR_RESULT_SUCCESS) {
unifi_error(priv, "Failed to stop processors\n");
}
return 0;
}
int unifi_putest_cmd52_block_read(unifi_priv_t *priv, unsigned char *arg)
{
struct unifi_putest_block_cmd52_r block_cmd52;
u8 *arg_pos;
unsigned int cmd_param_size;
CsrResult r;
u8 *block_local_buffer;
arg_pos = (u8*)(((unifi_putest_command_t*)arg) + 1);
if (get_user(cmd_param_size, (int*)arg_pos)) {
unifi_error(priv,
"cmd52r_block: Failed to get the argument\n");
return -EFAULT;
}
if (cmd_param_size != sizeof(struct unifi_putest_block_cmd52_r)) {
unifi_error(priv,
"cmd52r_block: cmd52 struct mismatch\n");
return -EINVAL;
}
arg_pos += sizeof(unsigned int);
if (copy_from_user(&block_cmd52,
(void*)arg_pos,
sizeof(struct unifi_putest_block_cmd52_r))) {
unifi_error(priv,
"cmd52r_block: Failed to get the cmd52 params\n");
return -EFAULT;
}
unifi_trace(priv, UDBG2, "cmd52r_block: func=%d addr=0x%x len=0x%x ",
block_cmd52.funcnum, block_cmd52.addr, block_cmd52.length);
block_local_buffer = vmalloc(block_cmd52.length);
if (block_local_buffer == NULL) {
unifi_error(priv, "cmd52r_block: Failed to allocate buffer\n");
return -ENOMEM;
}
CsrSdioClaim(priv->sdio);
r = unifi_card_readn(priv->card, block_cmd52.addr, block_local_buffer, block_cmd52.length);
CsrSdioRelease(priv->sdio);
if (r != CSR_RESULT_SUCCESS) {
unifi_error(priv, "cmd52r_block: unifi_readn failed\n");
return -EIO;
}
if (copy_to_user((void*)block_cmd52.data,
block_local_buffer,
block_cmd52.length)) {
unifi_error(priv,
"cmd52r_block: Failed to return the data\n");
return -EFAULT;
}
return 0;
}