diff options
Diffstat (limited to 'drivers/net/wireless/ath/ath6kl/hif.c')
-rw-r--r-- | drivers/net/wireless/ath/ath6kl/hif.c | 69 |
1 files changed, 61 insertions, 8 deletions
diff --git a/drivers/net/wireless/ath/ath6kl/hif.c b/drivers/net/wireless/ath/ath6kl/hif.c index 309be9823e02..e57da35e59fa 100644 --- a/drivers/net/wireless/ath/ath6kl/hif.c +++ b/drivers/net/wireless/ath/ath6kl/hif.c @@ -59,26 +59,79 @@ int ath6kl_hif_rw_comp_handler(void *context, int status) return 0; } +#define REG_DUMP_COUNT_AR6003 60 +#define REGISTER_DUMP_LEN_MAX 60 + +static void ath6kl_hif_dump_fw_crash(struct ath6kl *ar) +{ + __le32 regdump_val[REGISTER_DUMP_LEN_MAX]; + u32 i, address, regdump_addr = 0; + int ret; + + if (ar->target_type != TARGET_TYPE_AR6003) + return; + + /* the reg dump pointer is copied to the host interest area */ + address = ath6kl_get_hi_item_addr(ar, HI_ITEM(hi_failure_state)); + address = TARG_VTOP(ar->target_type, address); + + /* read RAM location through diagnostic window */ + ret = ath6kl_diag_read32(ar, address, ®dump_addr); + + if (ret || !regdump_addr) { + ath6kl_warn("failed to get ptr to register dump area: %d\n", + ret); + return; + } + + ath6kl_dbg(ATH6KL_DBG_IRQ, "register dump data address 0x%x\n", + regdump_addr); + regdump_addr = TARG_VTOP(ar->target_type, regdump_addr); + + /* fetch register dump data */ + ret = ath6kl_diag_read(ar, regdump_addr, (u8 *)®dump_val[0], + REG_DUMP_COUNT_AR6003 * (sizeof(u32))); + if (ret) { + ath6kl_warn("failed to get register dump: %d\n", ret); + return; + } + + ath6kl_info("crash dump:\n"); + ath6kl_info("hw 0x%x fw %s\n", ar->wiphy->hw_version, + ar->wiphy->fw_version); + + BUILD_BUG_ON(REG_DUMP_COUNT_AR6003 % 4); + + for (i = 0; i < REG_DUMP_COUNT_AR6003 / 4; i++) { + ath6kl_info("%d: 0x%8.8x 0x%8.8x 0x%8.8x 0x%8.8x\n", + 4 * i, + le32_to_cpu(regdump_val[i]), + le32_to_cpu(regdump_val[i + 1]), + le32_to_cpu(regdump_val[i + 2]), + le32_to_cpu(regdump_val[i + 3])); + } + +} static int ath6kl_hif_proc_dbg_intr(struct ath6kl_device *dev) { u32 dummy; - int status; + int ret; - ath6kl_err("target debug interrupt\n"); - - ath6kl_target_failure(dev->ar); + ath6kl_warn("firmware crashed\n"); /* * read counter to clear the interrupt, the debug error interrupt is * counter 0. */ - status = hif_read_write_sync(dev->ar, COUNT_DEC_ADDRESS, + ret = hif_read_write_sync(dev->ar, COUNT_DEC_ADDRESS, (u8 *)&dummy, 4, HIF_RD_SYNC_BYTE_INC); - if (status) - WARN_ON(1); + if (ret) + ath6kl_warn("Failed to clear debug interrupt: %d\n", ret); - return status; + ath6kl_hif_dump_fw_crash(dev->ar); + + return ret; } /* mailbox recv message polling */ |