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mwifiex: firmware dump support for w8997 chipset 

Current firmware dump solution support w8897 chipset, this
patch extend the exist framework with support for w8997
chipset.

Trigger firmware dump using,
cat /sys/kernel/debug/mwifiex/mlan0/device_dump,
data can be obtain by
cat /sys/class/devcoredump/devcd*/data > data.txt after that.

Signed-off-by: Xinming Hu <huxm@marvell.com>
Signed-off-by: Cathy Luo <cluo@marvell.com>
Signed-off-by: Amitkumar Karwar <akarwar@marvell.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
This commit is contained in:
Xinming Hu 2016-02-02 22:05:09 -08:00 committed by Kalle Valo
parent 03f0f7cdeb
commit 11e70824e7
3 changed files with 33 additions and 11 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

1
drivers/net/wireless/marvell/mwifiex/decl.h
View File

@ -274,6 +274,7 @@ struct mwifiex_11h_intf_state {
} __packed;
#define MWIFIEX_FW_DUMP_IDX 0xff
#define MWIFIEX_FW_DUMP_MAX_MEMSIZE 0x160000
#define MWIFIEX_DRV_INFO_IDX 20
#define FW_DUMP_MAX_NAME_LEN 8
#define FW_DUMP_HOST_READY 0xEE

16
drivers/net/wireless/marvell/mwifiex/pcie.c
View File

@ -2402,7 +2402,7 @@ static void mwifiex_pcie_fw_dump(struct mwifiex_adapter *adapter)
struct pcie_service_card *card = adapter->card;
const struct mwifiex_pcie_card_reg *creg = card->pcie.reg;
unsigned int reg, reg_start, reg_end;
u8 *dbg_ptr, *end_ptr, *tmp_ptr, dump_num;
u8 *dbg_ptr, *end_ptr, *tmp_ptr, fw_dump_num, dump_num;
u8 idx, i, read_reg, doneflag = 0;
enum rdwr_status stat;
u32 memory_size;
@ -2430,23 +2430,33 @@ static void mwifiex_pcie_fw_dump(struct mwifiex_adapter *adapter)
return;
reg = creg->fw_dump_start;
mwifiex_read_reg_byte(adapter, reg, &dump_num);
mwifiex_read_reg_byte(adapter, reg, &fw_dump_num);
/* W8997 chipset firmware dump will be restore in single region*/
if (fw_dump_num == 0)
dump_num = 1;
else
dump_num = fw_dump_num;
/* Read the length of every memory which will dump */
for (idx = 0; idx < dump_num; idx++) {
struct memory_type_mapping *entry =
&adapter->mem_type_mapping_tbl[idx];
memory_size = 0;
if (fw_dump_num != 0) {
stat = mwifiex_pcie_rdwr_firmware(adapter, doneflag);
if (stat == RDWR_STATUS_FAILURE)
return;
memory_size = 0;
reg = creg->fw_dump_start;
for (i = 0; i < 4; i++) {
mwifiex_read_reg_byte(adapter, reg, &read_reg);
memory_size |= (read_reg << (i * 8));
reg++;
}
} else {
memory_size = MWIFIEX_FW_DUMP_MAX_MEMSIZE;
}
if (memory_size == 0) {
mwifiex_dbg(adapter, MSG, "Firmware dump Finished!\n");

13
drivers/net/wireless/marvell/mwifiex/pcie.h
View File

@ -239,6 +239,11 @@ static const struct mwifiex_pcie_card_reg mwifiex_reg_8997 = {
.ring_tx_start_ptr = MWIFIEX_BD_FLAG_TX_START_PTR,
.pfu_enabled = 1,
.sleep_cookie = 0,
.fw_dump_ctrl = 0xcf4,
.fw_dump_start = 0xcf8,
.fw_dump_end = 0xcff,
.fw_dump_host_ready = 0xcc,
.fw_dump_read_done = 0xdd,
.msix_support = 1,
};
@ -253,6 +258,10 @@ static struct memory_type_mapping mem_type_mapping_tbl_w8897[] = {
{"MAC", NULL, 0, 0xF7},
};
static struct memory_type_mapping mem_type_mapping_tbl_w8997[] = {
{"DUMP", NULL, 0, 0xDD},
};
struct mwifiex_pcie_device {
const char *firmware;
const struct mwifiex_pcie_card_reg *reg;
@ -289,7 +298,9 @@ static const struct mwifiex_pcie_device mwifiex_pcie8997 = {
.reg = &mwifiex_reg_8997,
.blksz_fw_dl = MWIFIEX_PCIE_BLOCK_SIZE_FW_DNLD,
.tx_buf_size = MWIFIEX_TX_DATA_BUF_SIZE_4K,
.can_dump_fw = false,
.can_dump_fw = true,
.mem_type_mapping_tbl = mem_type_mapping_tbl_w8997,
.num_mem_types = ARRAY_SIZE(mem_type_mapping_tbl_w8997),
.can_ext_scan = true,
};