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authorDaniel Kim <dekim@broadcom.com>2014-07-12 08:49:37 +0200
committerJohn W. Linville <linville@tuxdriver.com>2014-07-15 16:00:12 -0400
commitc1b20532ef395f23c2d24bc9c7f772a45e0420c7 (patch)
tree880138c85af5188784f78e8f9e0b31ec0b8f696e /drivers
parent82d957e09d4f0ff8091ca67e39b51ec6bdc672b1 (diff)
downloadlinux-c1b20532ef395f23c2d24bc9c7f772a45e0420c7.tar.gz
brcmfmac: Make firmware path a module parameter
This patch makes firmware path a module parameter so that firmware and nvram files can be loaded from the specified path. Signed-off-by: Daniel Kim <dekim@broadcom.com> Signed-off-by: Arend van Spriel <arend@broadcom.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'drivers')
-rw-r--r--drivers/net/wireless/brcm80211/brcmfmac/dhd_sdio.c47
-rw-r--r--drivers/net/wireless/brcm80211/brcmfmac/firmware.c5
-rw-r--r--drivers/net/wireless/brcm80211/brcmfmac/firmware.h5
-rw-r--r--drivers/net/wireless/brcm80211/brcmfmac/sdio_host.h4
4 files changed, 41 insertions, 20 deletions
diff --git a/drivers/net/wireless/brcm80211/brcmfmac/dhd_sdio.c b/drivers/net/wireless/brcm80211/brcmfmac/dhd_sdio.c
index c0486329331b..67d91d5cc13d 100644
--- a/drivers/net/wireless/brcm80211/brcmfmac/dhd_sdio.c
+++ b/drivers/net/wireless/brcm80211/brcmfmac/dhd_sdio.c
@@ -666,28 +666,34 @@ static const struct brcmf_firmware_names brcmf_fwname_data[] = {
{ BRCM_CC_4354_CHIP_ID, 0xFFFFFFFF, BRCMF_FIRMWARE_NVRAM(BCM4354) }
};
-static const char *brcmf_sdio_get_fwname(struct brcmf_chip *ci,
- enum brcmf_firmware_type type)
+static int brcmf_sdio_get_fwnames(struct brcmf_chip *ci,
+ struct brcmf_sdio_dev *sdiodev)
{
int i;
for (i = 0; i < ARRAY_SIZE(brcmf_fwname_data); i++) {
if (brcmf_fwname_data[i].chipid == ci->chip &&
- brcmf_fwname_data[i].revmsk & BIT(ci->chiprev)) {
- switch (type) {
- case BRCMF_FIRMWARE_BIN:
- return brcmf_fwname_data[i].bin;
- case BRCMF_FIRMWARE_NVRAM:
- return brcmf_fwname_data[i].nv;
- default:
- brcmf_err("invalid firmware type (%d)\n", type);
- return NULL;
- }
- }
+ brcmf_fwname_data[i].revmsk & BIT(ci->chiprev))
+ break;
}
- brcmf_err("Unknown chipid %d [%d]\n",
- ci->chip, ci->chiprev);
- return NULL;
+
+ if (i == ARRAY_SIZE(brcmf_fwname_data)) {
+ brcmf_err("Unknown chipid %d [%d]\n", ci->chip, ci->chiprev);
+ return -ENODEV;
+ }
+
+ /* check if firmware path is provided by module parameter */
+ if (brcmf_firmware_path[0] != '\0') {
+ if (brcmf_firmware_path[strlen(brcmf_firmware_path) - 1] != '/')
+ strcat(brcmf_firmware_path, "/");
+
+ strcpy(sdiodev->fw_name, brcmf_firmware_path);
+ strcpy(sdiodev->nvram_name, brcmf_firmware_path);
+ }
+ strcat(sdiodev->fw_name, brcmf_fwname_data[i].bin);
+ strcat(sdiodev->nvram_name, brcmf_fwname_data[i].nv);
+
+ return 0;
}
static void pkt_align(struct sk_buff *p, int len, int align)
@@ -4160,11 +4166,12 @@ struct brcmf_sdio *brcmf_sdio_probe(struct brcmf_sdio_dev *sdiodev)
brcmf_sdio_debugfs_create(bus);
brcmf_dbg(INFO, "completed!!\n");
+ ret = brcmf_sdio_get_fwnames(bus->ci, sdiodev);
+ if (ret)
+ goto fail;
+
ret = brcmf_fw_get_firmwares(sdiodev->dev, BRCMF_FW_REQUEST_NVRAM,
- brcmf_sdio_get_fwname(bus->ci,
- BRCMF_FIRMWARE_BIN),
- brcmf_sdio_get_fwname(bus->ci,
- BRCMF_FIRMWARE_NVRAM),
+ sdiodev->fw_name, sdiodev->nvram_name,
brcmf_sdio_firmware_callback);
if (ret != 0) {
brcmf_err("async firmware request failed: %d\n", ret);
diff --git a/drivers/net/wireless/brcm80211/brcmfmac/firmware.c b/drivers/net/wireless/brcm80211/brcmfmac/firmware.c
index 7b7d237c1ddb..8ea9f283d2b8 100644
--- a/drivers/net/wireless/brcm80211/brcmfmac/firmware.c
+++ b/drivers/net/wireless/brcm80211/brcmfmac/firmware.c
@@ -18,10 +18,15 @@
#include <linux/slab.h>
#include <linux/device.h>
#include <linux/firmware.h>
+#include <linux/module.h>
#include "dhd_dbg.h"
#include "firmware.h"
+char brcmf_firmware_path[BRCMF_FW_PATH_LEN];
+module_param_string(firmware_path, brcmf_firmware_path,
+ BRCMF_FW_PATH_LEN, 0440);
+
enum nvram_parser_state {
IDLE,
KEY,
diff --git a/drivers/net/wireless/brcm80211/brcmfmac/firmware.h b/drivers/net/wireless/brcm80211/brcmfmac/firmware.h
index 6431bfd7afff..4d3482356b77 100644
--- a/drivers/net/wireless/brcm80211/brcmfmac/firmware.h
+++ b/drivers/net/wireless/brcm80211/brcmfmac/firmware.h
@@ -21,6 +21,11 @@
#define BRCMF_FW_REQ_FLAGS 0x00F0
#define BRCMF_FW_REQ_NV_OPTIONAL 0x0010
+#define BRCMF_FW_PATH_LEN 256
+#define BRCMF_FW_NAME_LEN 32
+
+extern char brcmf_firmware_path[];
+
void brcmf_fw_nvram_free(void *nvram);
/*
* Request firmware(s) asynchronously. When the asynchronous request
diff --git a/drivers/net/wireless/brcm80211/brcmfmac/sdio_host.h b/drivers/net/wireless/brcm80211/brcmfmac/sdio_host.h
index 3deab7959a0d..6c5e585ccda9 100644
--- a/drivers/net/wireless/brcm80211/brcmfmac/sdio_host.h
+++ b/drivers/net/wireless/brcm80211/brcmfmac/sdio_host.h
@@ -18,6 +18,8 @@
#define _BRCM_SDH_H_
#include <linux/skbuff.h>
+#include <linux/firmware.h>
+#include "firmware.h"
#define SDIO_FUNC_0 0
#define SDIO_FUNC_1 1
@@ -182,6 +184,8 @@ struct brcmf_sdio_dev {
uint max_segment_size;
uint txglomsz;
struct sg_table sgtable;
+ char fw_name[BRCMF_FW_PATH_LEN + BRCMF_FW_NAME_LEN];
+ char nvram_name[BRCMF_FW_PATH_LEN + BRCMF_FW_NAME_LEN];
};
/* sdio core registers */