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ath10k: fetch firmware images in a loop 

To make it easier to handle minimum and maximum firmware API numbers convert
the firmware fetch functionality to a loop. If no firmware image is found print
an error with minimum and maximum API numbers and the name of firmware
directory. This is needed when we switch to using request_firmware_direct()
which doesn't print any errors anymore.

Also add a new function for creating the fw file name dynamically which makes it
easier to add new bus support, for example SDIO and USB, later.

Signed-off-by: Erik Stromdahl <erik.stromdahl@gmail.com>
[kvalo@qca.qualcomm.com: remove sdio/usb part, new error message, clarify commit log]
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
This commit is contained in:
Erik Stromdahl 2017-02-13 12:38:40 +02:00 committed by Kalle Valo
parent 1427228d58
commit 1c61bedc0a
2 changed files with 27 additions and 28 deletions
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51
drivers/net/wireless/ath/ath10k/core.c
View File

@ -1358,44 +1358,39 @@ err:
return ret;
}
static void ath10k_core_get_fw_name(struct ath10k *ar, char *fw_name,
size_t fw_name_len, int fw_api)
{
scnprintf(fw_name, fw_name_len, "%s-%d.bin", ATH10K_FW_FILE_BASE, fw_api);
}
static int ath10k_core_fetch_firmware_files(struct ath10k *ar)
{
int ret;
int ret, i;
char fw_name[100];
/* calibration file is optional, don't check for any errors */
ath10k_fetch_cal_file(ar);
ar->fw_api = 5;
ath10k_dbg(ar, ATH10K_DBG_BOOT, "trying fw api %d\n", ar->fw_api);
for (i = ATH10K_FW_API_MAX; i >= ATH10K_FW_API_MIN; i--) {
ar->fw_api = i;
ath10k_dbg(ar, ATH10K_DBG_BOOT, "trying fw api %d\n",
ar->fw_api);
ret = ath10k_core_fetch_firmware_api_n(ar, ATH10K_FW_API5_FILE,
&ar->normal_mode_fw.fw_file);
if (ret == 0)
goto success;
ath10k_core_get_fw_name(ar, fw_name, sizeof(fw_name), ar->fw_api);
ret = ath10k_core_fetch_firmware_api_n(ar, fw_name,
&ar->normal_mode_fw.fw_file);
if (!ret)
goto success;
}
ar->fw_api = 4;
ath10k_dbg(ar, ATH10K_DBG_BOOT, "trying fw api %d\n", ar->fw_api);
/* we end up here if we couldn't fetch any firmware */
ret = ath10k_core_fetch_firmware_api_n(ar, ATH10K_FW_API4_FILE,
&ar->normal_mode_fw.fw_file);
if (ret == 0)
goto success;
ath10k_err(ar, "Failed to find firmware-N.bin (N between %d and %d) from %s: %d",
ATH10K_FW_API_MIN, ATH10K_FW_API_MAX, ar->hw_params.fw.dir,
ret);
ar->fw_api = 3;
ath10k_dbg(ar, ATH10K_DBG_BOOT, "trying fw api %d\n", ar->fw_api);
ret = ath10k_core_fetch_firmware_api_n(ar, ATH10K_FW_API3_FILE,
&ar->normal_mode_fw.fw_file);
if (ret == 0)
goto success;
ar->fw_api = 2;
ath10k_dbg(ar, ATH10K_DBG_BOOT, "trying fw api %d\n", ar->fw_api);
ret = ath10k_core_fetch_firmware_api_n(ar, ATH10K_FW_API2_FILE,
&ar->normal_mode_fw.fw_file);
if (ret)
return ret;
return ret;
success:
ath10k_dbg(ar, ATH10K_DBG_BOOT, "using fw api %d\n", ar->fw_api);

4
drivers/net/wireless/ath/ath10k/hw.h
View File

@ -128,6 +128,10 @@ enum qca9377_chip_id_rev {
#define QCA4019_HW_1_0_BOARD_DATA_FILE "board.bin"
#define QCA4019_HW_1_0_PATCH_LOAD_ADDR 0x1234
#define ATH10K_FW_FILE_BASE "firmware"
#define ATH10K_FW_API_MAX 5
#define ATH10K_FW_API_MIN 2
#define ATH10K_FW_API2_FILE "firmware-2.bin"
#define ATH10K_FW_API3_FILE "firmware-3.bin"