diff options
Diffstat (limited to 'drivers/staging/csr/putest.c')
| -rw-r--r-- | drivers/staging/csr/putest.c | 685 |
1 files changed, 0 insertions, 685 deletions
diff --git a/drivers/staging/csr/putest.c b/drivers/staging/csr/putest.c deleted file mode 100644 index 5613cf0e16b0..000000000000 --- a/drivers/staging/csr/putest.c +++ /dev/null @@ -1,685 +0,0 @@ -/* - * *************************************************************************** - * 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; -} |