diff options
Diffstat (limited to '')
| -rw-r--r-- | drivers/net/wireless/mwifiex/sdio.c | 235 |
1 files changed, 226 insertions, 9 deletions
diff --git a/drivers/net/wireless/mwifiex/sdio.c b/drivers/net/wireless/mwifiex/sdio.c index 4ce3d7b33991..1770fa3fc1e6 100644 --- a/drivers/net/wireless/mwifiex/sdio.c +++ b/drivers/net/wireless/mwifiex/sdio.c @@ -1,7 +1,7 @@ /* * Marvell Wireless LAN device driver: SDIO specific handling * - * Copyright (C) 2011, Marvell International Ltd. + * Copyright (C) 2011-2014, Marvell International Ltd. * * This software file (the "File") is distributed by Marvell International * Ltd. under the terms of the GNU General Public License Version 2, June 1991 @@ -50,6 +50,24 @@ static struct mwifiex_if_ops sdio_ops; static struct semaphore add_remove_card_sem; +static struct memory_type_mapping mem_type_mapping_tbl[] = { + {"ITCM", NULL, 0, 0xF0}, + {"DTCM", NULL, 0, 0xF1}, + {"SQRAM", NULL, 0, 0xF2}, + {"APU", NULL, 0, 0xF3}, + {"CIU", NULL, 0, 0xF4}, + {"ICU", NULL, 0, 0xF5}, + {"MAC", NULL, 0, 0xF6}, + {"EXT7", NULL, 0, 0xF7}, + {"EXT8", NULL, 0, 0xF8}, + {"EXT9", NULL, 0, 0xF9}, + {"EXT10", NULL, 0, 0xFA}, + {"EXT11", NULL, 0, 0xFB}, + {"EXT12", NULL, 0, 0xFC}, + {"EXT13", NULL, 0, 0xFD}, + {"EXTLAST", NULL, 0, 0xFE}, +}; + /* * SDIO probe. * @@ -87,6 +105,7 @@ mwifiex_sdio_probe(struct sdio_func *func, const struct sdio_device_id *id) card->tx_buf_size = data->tx_buf_size; card->mp_tx_agg_buf_size = data->mp_tx_agg_buf_size; card->mp_rx_agg_buf_size = data->mp_rx_agg_buf_size; + card->supports_fw_dump = data->supports_fw_dump; } sdio_claim_host(func); @@ -179,6 +198,8 @@ mwifiex_sdio_remove(struct sdio_func *func) if (!adapter || !adapter->priv_num) return; + cancel_work_sync(&adapter->iface_work); + if (user_rmmod) { if (adapter->is_suspended) mwifiex_sdio_resume(adapter->dev); @@ -1777,6 +1798,8 @@ static int mwifiex_register_dev(struct mwifiex_adapter *adapter) adapter->dev = &func->dev; strcpy(adapter->fw_name, card->firmware); + adapter->mem_type_mapping_tbl = mem_type_mapping_tbl; + adapter->num_mem_types = ARRAY_SIZE(mem_type_mapping_tbl); return 0; } @@ -1914,10 +1937,10 @@ mwifiex_update_mp_end_port(struct mwifiex_adapter *adapter, u16 port) port, card->mp_data_port_mask); } -static struct mmc_host *reset_host; -static void sdio_card_reset_worker(struct work_struct *work) +static void mwifiex_sdio_card_reset_work(struct mwifiex_adapter *adapter) { - struct mmc_host *target = reset_host; + struct sdio_mmc_card *card = adapter->card; + struct mmc_host *target = card->func->card->host; /* The actual reset operation must be run outside of driver thread. * This is because mmc_remove_host() will cause the device to be @@ -1931,17 +1954,210 @@ static void sdio_card_reset_worker(struct work_struct *work) mmc_remove_host(target); /* 20ms delay is based on experiment with sdhci controller */ mdelay(20); + target->rescan_entered = 0; /* rescan non-removable cards */ mmc_add_host(target); } -static DECLARE_WORK(card_reset_work, sdio_card_reset_worker); + +/* This function read/write firmware */ +static enum +rdwr_status mwifiex_sdio_rdwr_firmware(struct mwifiex_adapter *adapter, + u8 doneflag) +{ + struct sdio_mmc_card *card = adapter->card; + int ret, tries; + u8 ctrl_data = 0; + + sdio_writeb(card->func, FW_DUMP_HOST_READY, card->reg->fw_dump_ctrl, + &ret); + if (ret) { + dev_err(adapter->dev, "SDIO Write ERR\n"); + return RDWR_STATUS_FAILURE; + } + for (tries = 0; tries < MAX_POLL_TRIES; tries++) { + ctrl_data = sdio_readb(card->func, card->reg->fw_dump_ctrl, + &ret); + if (ret) { + dev_err(adapter->dev, "SDIO read err\n"); + return RDWR_STATUS_FAILURE; + } + if (ctrl_data == FW_DUMP_DONE) + break; + if (doneflag && ctrl_data == doneflag) + return RDWR_STATUS_DONE; + if (ctrl_data != FW_DUMP_HOST_READY) { + dev_info(adapter->dev, + "The ctrl reg was changed, re-try again!\n"); + sdio_writeb(card->func, FW_DUMP_HOST_READY, + card->reg->fw_dump_ctrl, &ret); + if (ret) { + dev_err(adapter->dev, "SDIO write err\n"); + return RDWR_STATUS_FAILURE; + } + } + usleep_range(100, 200); + } + if (ctrl_data == FW_DUMP_HOST_READY) { + dev_err(adapter->dev, "Fail to pull ctrl_data\n"); + return RDWR_STATUS_FAILURE; + } + + return RDWR_STATUS_SUCCESS; +} + +/* This function dump firmware memory to file */ +static void mwifiex_sdio_fw_dump_work(struct work_struct *work) +{ + struct mwifiex_adapter *adapter = + container_of(work, struct mwifiex_adapter, iface_work); + struct sdio_mmc_card *card = adapter->card; + int ret = 0; + unsigned int reg, reg_start, reg_end; + u8 *dbg_ptr, *end_ptr, dump_num, idx, i, read_reg, doneflag = 0; + enum rdwr_status stat; + u32 memory_size; + static char *env[] = { "DRIVER=mwifiex_sdio", "EVENT=fw_dump", NULL }; + + if (!card->supports_fw_dump) + return; + + for (idx = 0; idx < ARRAY_SIZE(mem_type_mapping_tbl); idx++) { + struct memory_type_mapping *entry = &mem_type_mapping_tbl[idx]; + + if (entry->mem_ptr) { + vfree(entry->mem_ptr); + entry->mem_ptr = NULL; + } + entry->mem_size = 0; + } + + mwifiex_pm_wakeup_card(adapter); + sdio_claim_host(card->func); + + dev_info(adapter->dev, "== mwifiex firmware dump start ==\n"); + + stat = mwifiex_sdio_rdwr_firmware(adapter, doneflag); + if (stat == RDWR_STATUS_FAILURE) + goto done; + + reg = card->reg->fw_dump_start; + /* Read the number of the memories which will dump */ + dump_num = sdio_readb(card->func, reg, &ret); + if (ret) { + dev_err(adapter->dev, "SDIO read memory length err\n"); + goto done; + } + + /* Read the length of every memory which will dump */ + for (idx = 0; idx < dump_num; idx++) { + struct memory_type_mapping *entry = &mem_type_mapping_tbl[idx]; + + stat = mwifiex_sdio_rdwr_firmware(adapter, doneflag); + if (stat == RDWR_STATUS_FAILURE) + goto done; + + memory_size = 0; + reg = card->reg->fw_dump_start; + for (i = 0; i < 4; i++) { + read_reg = sdio_readb(card->func, reg, &ret); + if (ret) { + dev_err(adapter->dev, "SDIO read err\n"); + goto done; + } + memory_size |= (read_reg << i*8); + reg++; + } + + if (memory_size == 0) { + dev_info(adapter->dev, "Firmware dump Finished!\n"); + break; + } + + dev_info(adapter->dev, + "%s_SIZE=0x%x\n", entry->mem_name, memory_size); + entry->mem_ptr = vmalloc(memory_size + 1); + entry->mem_size = memory_size; + if (!entry->mem_ptr) { + dev_err(adapter->dev, "Vmalloc %s failed\n", + entry->mem_name); + goto done; + } + dbg_ptr = entry->mem_ptr; + end_ptr = dbg_ptr + memory_size; + + doneflag = entry->done_flag; + dev_info(adapter->dev, "Start %s output, please wait...\n", + entry->mem_name); + + do { + stat = mwifiex_sdio_rdwr_firmware(adapter, doneflag); + if (stat == RDWR_STATUS_FAILURE) + goto done; + + reg_start = card->reg->fw_dump_start; + reg_end = card->reg->fw_dump_end; + for (reg = reg_start; reg <= reg_end; reg++) { + *dbg_ptr = sdio_readb(card->func, reg, &ret); + if (ret) { + dev_err(adapter->dev, + "SDIO read err\n"); + goto done; + } + if (dbg_ptr < end_ptr) + dbg_ptr++; + else + dev_err(adapter->dev, + "Allocated buf not enough\n"); + } + + if (stat != RDWR_STATUS_DONE) + continue; + + dev_info(adapter->dev, "%s done: size=0x%tx\n", + entry->mem_name, dbg_ptr - entry->mem_ptr); + break; + } while (1); + } + dev_info(adapter->dev, "== mwifiex firmware dump end ==\n"); + + kobject_uevent_env(&adapter->wiphy->dev.kobj, KOBJ_CHANGE, env); + +done: + sdio_release_host(card->func); + adapter->curr_mem_idx = 0; +} + +static void mwifiex_sdio_work(struct work_struct *work) +{ + struct mwifiex_adapter *adapter = + container_of(work, struct mwifiex_adapter, iface_work); + + if (test_and_clear_bit(MWIFIEX_IFACE_WORK_CARD_RESET, + &adapter->iface_work_flags)) + mwifiex_sdio_card_reset_work(adapter); + if (test_and_clear_bit(MWIFIEX_IFACE_WORK_FW_DUMP, + &adapter->iface_work_flags)) + mwifiex_sdio_fw_dump_work(work); +} /* This function resets the card */ static void mwifiex_sdio_card_reset(struct mwifiex_adapter *adapter) { - struct sdio_mmc_card *card = adapter->card; + if (test_bit(MWIFIEX_IFACE_WORK_CARD_RESET, &adapter->iface_work_flags)) + return; + + set_bit(MWIFIEX_IFACE_WORK_CARD_RESET, &adapter->iface_work_flags); + + schedule_work(&adapter->iface_work); +} + +/* This function dumps FW information */ +static void mwifiex_sdio_fw_dump(struct mwifiex_adapter *adapter) +{ + if (test_bit(MWIFIEX_IFACE_WORK_FW_DUMP, &adapter->iface_work_flags)) + return; - reset_host = card->func->card->host; - schedule_work(&card_reset_work); + set_bit(MWIFIEX_IFACE_WORK_FW_DUMP, &adapter->iface_work_flags); + schedule_work(&adapter->iface_work); } static struct mwifiex_if_ops sdio_ops = { @@ -1964,6 +2180,8 @@ static struct mwifiex_if_ops sdio_ops = { .cmdrsp_complete = mwifiex_sdio_cmdrsp_complete, .event_complete = mwifiex_sdio_event_complete, .card_reset = mwifiex_sdio_card_reset, + .iface_work = mwifiex_sdio_work, + .fw_dump = mwifiex_sdio_fw_dump, }; /* @@ -2001,7 +2219,6 @@ mwifiex_sdio_cleanup_module(void) /* Set the flag as user is removing this module. */ user_rmmod = 1; - cancel_work_sync(&card_reset_work); sdio_unregister_driver(&mwifiex_sdio); } |