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wl12xx: 1281/1283 support - Loading FW & NVS

Browse source 
Take care of FW & NVS with the auto-detection between wl127x and
wl128x.

[Moved some common code outside if statements and added notes about
NVS structure assumptions; Fixed a bug when checking the nvs size: if
the size was incorrect, the local nvs variable was set to NULL, it
should be wl->nvs instead. -- Luca]

[Merged with potential buffer overflow fix -- Luca]

Signed-off-by: Shahar Levi <shahar_levi@ti.com>
Reviewed-by: Luciano Coelho <coelho@ti.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>
This commit is contained in:
Shahar Levi 2011-03-06 16:32:10 +02:00 committed by Luciano Coelho
parent 49d750ca14
commit bc765bf3b9
7 changed files with 86 additions and 42 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

83
drivers/net/wireless/wl12xx/boot.c
View file

@ -243,33 +243,57 @@ static int wl1271_boot_upload_nvs(struct wl1271 *wl)
if (wl->nvs == NULL)
return -ENODEV;
/*
* FIXME: the LEGACY NVS image support (NVS's missing the 5GHz band
* configurations) can be removed when those NVS files stop floating
* around.
*/
if (wl->nvs_len == sizeof(struct wl1271_nvs_file) ||
wl->nvs_len == WL1271_INI_LEGACY_NVS_FILE_SIZE) {
/* for now 11a is unsupported in AP mode */
if (wl->bss_type != BSS_TYPE_AP_BSS &&
wl->nvs->general_params.dual_mode_select)
wl->enable_11a = true;
}
if (wl->chip.id == CHIP_ID_1283_PG20) {
struct wl128x_nvs_file *nvs = (struct wl128x_nvs_file *)wl->nvs;
if (wl->nvs_len != sizeof(struct wl1271_nvs_file) &&
(wl->nvs_len != WL1271_INI_LEGACY_NVS_FILE_SIZE ||
wl->enable_11a)) {
wl1271_error("nvs size is not as expected: %zu != %zu",
wl->nvs_len, sizeof(struct wl1271_nvs_file));
kfree(wl->nvs);
wl->nvs = NULL;
wl->nvs_len = 0;
return -EILSEQ;
}
if (wl->nvs_len == sizeof(struct wl128x_nvs_file)) {
if (nvs->general_params.dual_mode_select)
wl->enable_11a = true;
} else {
wl1271_error("nvs size is not as expected: %zu != %zu",
wl->nvs_len,
sizeof(struct wl128x_nvs_file));
kfree(wl->nvs);
wl->nvs = NULL;
wl->nvs_len = 0;
return -EILSEQ;
}
/* only the first part of the NVS needs to be uploaded */
nvs_len = sizeof(wl->nvs->nvs);
nvs_ptr = (u8 *)wl->nvs->nvs;
/* only the first part of the NVS needs to be uploaded */
nvs_len = sizeof(nvs->nvs);
nvs_ptr = (u8 *)nvs->nvs;
} else {
struct wl1271_nvs_file *nvs =
(struct wl1271_nvs_file *)wl->nvs;
/*
* FIXME: the LEGACY NVS image support (NVS's missing the 5GHz
* band configurations) can be removed when those NVS files stop
* floating around.
*/
if (wl->nvs_len == sizeof(struct wl1271_nvs_file) ||
wl->nvs_len == WL1271_INI_LEGACY_NVS_FILE_SIZE) {
/* for now 11a is unsupported in AP mode */
if (wl->bss_type != BSS_TYPE_AP_BSS &&
nvs->general_params.dual_mode_select)
wl->enable_11a = true;
}
if (wl->nvs_len != sizeof(struct wl1271_nvs_file) &&
(wl->nvs_len != WL1271_INI_LEGACY_NVS_FILE_SIZE ||
wl->enable_11a)) {
wl1271_error("nvs size is not as expected: %zu != %zu",
wl->nvs_len, sizeof(struct wl1271_nvs_file));
kfree(wl->nvs);
wl->nvs = NULL;
wl->nvs_len = 0;
return -EILSEQ;
}
/* only the first part of the NVS needs to be uploaded */
nvs_len = sizeof(nvs->nvs);
nvs_ptr = (u8 *) nvs->nvs;
}
/* update current MAC address to NVS */
nvs_ptr[11] = wl->mac_addr[0];
@ -319,10 +343,13 @@ static int wl1271_boot_upload_nvs(struct wl1271 *wl)
/*
* We've reached the first zero length, the first NVS table
* is located at an aligned offset which is at least 7 bytes further.
* NOTE: The wl->nvs->nvs element must be first, in order to
* simplify the casting, we assume it is at the beginning of
* the wl->nvs structure.
*/
nvs_ptr = (u8 *)wl->nvs->nvs +
ALIGN(nvs_ptr - (u8 *)wl->nvs->nvs + 7, 4);
nvs_len -= nvs_ptr - (u8 *)wl->nvs->nvs;
nvs_ptr = (u8 *)wl->nvs +
ALIGN(nvs_ptr - (u8 *)wl->nvs + 7, 4);
nvs_len -= nvs_ptr - (u8 *)wl->nvs;
/* Now we must set the partition correctly */
wl1271_set_partition(wl, &part_table[PART_WORK]);

11
drivers/net/wireless/wl12xx/cmd.c
View file

@ -187,8 +187,9 @@ int wl128x_cmd_general_parms(struct wl1271 *wl)
int wl1271_cmd_radio_parms(struct wl1271 *wl)
{
struct wl1271_nvs_file *nvs = (struct wl1271_nvs_file *)wl->nvs;
struct wl1271_radio_parms_cmd *radio_parms;
struct wl1271_ini_general_params *gp = &wl->nvs->general_params;
struct wl1271_ini_general_params *gp = &nvs->general_params;
int ret;
if (!wl->nvs)
@ -201,18 +202,18 @@ int wl1271_cmd_radio_parms(struct wl1271 *wl)
radio_parms->test.id = TEST_CMD_INI_FILE_RADIO_PARAM;
/* 2.4GHz parameters */
memcpy(&radio_parms->static_params_2, &wl->nvs->stat_radio_params_2,
memcpy(&radio_parms->static_params_2, &nvs->stat_radio_params_2,
sizeof(struct wl1271_ini_band_params_2));
memcpy(&radio_parms->dyn_params_2,
&wl->nvs->dyn_radio_params_2[gp->tx_bip_fem_manufacturer].params,
&nvs->dyn_radio_params_2[gp->tx_bip_fem_manufacturer].params,
sizeof(struct wl1271_ini_fem_params_2));
/* 5GHz parameters */
memcpy(&radio_parms->static_params_5,
&wl->nvs->stat_radio_params_5,
&nvs->stat_radio_params_5,
sizeof(struct wl1271_ini_band_params_5));
memcpy(&radio_parms->dyn_params_5,
&wl->nvs->dyn_radio_params_5[gp->tx_bip_fem_manufacturer].params,
&nvs->dyn_radio_params_5[gp->tx_bip_fem_manufacturer].params,
sizeof(struct wl1271_ini_fem_params_5));
wl1271_dump(DEBUG_CMD, "TEST_CMD_INI_FILE_RADIO_PARAM: ",

4
drivers/net/wireless/wl12xx/ini.h
View file

@ -174,7 +174,7 @@ struct wl128x_ini_fem_params_5 {
#define WL1271_INI_LEGACY_NVS_FILE_SIZE 800
struct wl1271_nvs_file {
/* NVS section */
/* NVS section - must be first! */
u8 nvs[WL1271_INI_NVS_SECTION_SIZE];
/* INI section */
@ -195,7 +195,7 @@ struct wl1271_nvs_file {
} __packed;
struct wl128x_nvs_file {
/* NVS section */
/* NVS section - must be first! */
u8 nvs[WL1271_INI_NVS_SECTION_SIZE];
/* INI section */

13
drivers/net/wireless/wl12xx/main.c
View file

@ -804,7 +804,10 @@ static int wl1271_fetch_firmware(struct wl1271 *wl)
break;
case BSS_TYPE_IBSS:
case BSS_TYPE_STA_BSS:
fw_name = WL1271_FW_NAME;
if (wl->chip.id == CHIP_ID_1283_PG20)
fw_name = WL128X_FW_NAME;
else
fw_name = WL1271_FW_NAME;
break;
default:
wl1271_error("no compatible firmware for bss_type %d",
@ -860,7 +863,7 @@ static int wl1271_fetch_nvs(struct wl1271 *wl)
return ret;
}
wl->nvs = kmemdup(fw->data, sizeof(struct wl1271_nvs_file), GFP_KERNEL);
wl->nvs = kmemdup(fw->data, fw->size, GFP_KERNEL);
if (!wl->nvs) {
wl1271_error("could not allocate memory for the nvs file");
@ -3289,7 +3292,11 @@ int wl1271_register_hw(struct wl1271 *wl)
ret = wl1271_fetch_nvs(wl);
if (ret == 0) {
u8 *nvs_ptr = (u8 *)wl->nvs->nvs;
/* NOTE: The wl->nvs->nvs element must be first, in
* order to simplify the casting, we assume it is at
* the beginning of the wl->nvs structure.
*/
u8 *nvs_ptr = (u8 *)wl->nvs;
wl->mac_addr[0] = nvs_ptr[11];
wl->mac_addr[1] = nvs_ptr[10];

9
drivers/net/wireless/wl12xx/sdio_test.c
View file

@ -189,7 +189,12 @@ static int wl1271_fetch_firmware(struct wl1271 *wl)
const struct firmware *fw;
int ret;
ret = request_firmware(&fw, WL1271_FW_NAME, wl1271_wl_to_dev(wl));
if (wl->chip.id == CHIP_ID_1283_PG20)
ret = request_firmware(&fw, WL128X_FW_NAME,
wl1271_wl_to_dev(wl));
else
ret = request_firmware(&fw, WL1271_FW_NAME,
wl1271_wl_to_dev(wl));
if (ret < 0) {
wl1271_error("could not get firmware: %d", ret);
@ -234,7 +239,7 @@ static int wl1271_fetch_nvs(struct wl1271 *wl)
return ret;
}
wl->nvs = kmemdup(fw->data, sizeof(struct wl1271_nvs_file), GFP_KERNEL);
wl->nvs = kmemdup(fw->data, fw->size, GFP_KERNEL);
if (!wl->nvs) {
wl1271_error("could not allocate memory for the nvs file");

6
drivers/net/wireless/wl12xx/testmode.c
View file

@ -27,6 +27,7 @@
#include "wl12xx.h"
#include "acx.h"
#include "reg.h"
#define WL1271_TM_MAX_DATA_LENGTH 1024
@ -204,7 +205,10 @@ static int wl1271_tm_cmd_nvs_push(struct wl1271 *wl, struct nlattr *tb[])
kfree(wl->nvs);
if (len != sizeof(struct wl1271_nvs_file))
if ((wl->chip.id == CHIP_ID_1283_PG20) &&
(len != sizeof(struct wl128x_nvs_file)))
return -EINVAL;
else if (len != sizeof(struct wl1271_nvs_file))
return -EINVAL;
wl->nvs = kzalloc(len, GFP_KERNEL);

2
drivers/net/wireless/wl12xx/wl12xx.h
View file

@ -378,7 +378,7 @@ struct wl1271 {
u8 *fw;
size_t fw_len;
u8 fw_bss_type;
struct wl1271_nvs_file *nvs;
void *nvs;
size_t nvs_len;
s8 hw_pg_ver;