/* * This file is part of wl12xx * * Copyright (C) 2008-2009 Nokia Corporation * * Contact: Kalle Valo * * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU General Public License * version 2 as published by the Free Software Foundation. * * This program is distributed in the hope that it will be useful, but * WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA * 02110-1301 USA * */ #include #include #include "wl1251.h" #include "reg.h" #include "spi.h" #include "boot.h" #include "event.h" #include "acx.h" #include "tx.h" #include "rx.h" #include "ps.h" #include "init.h" static struct wl12xx_partition_set wl1251_part_table[PART_TABLE_LEN] = { [PART_DOWN] = { .mem = { .start = 0x00000000, .size = 0x00016800 }, .reg = { .start = REGISTERS_BASE, .size = REGISTERS_DOWN_SIZE }, }, [PART_WORK] = { .mem = { .start = 0x00028000, .size = 0x00014000 }, .reg = { .start = REGISTERS_BASE, .size = REGISTERS_WORK_SIZE }, }, /* WL1251 doesn't use the DRPW partition, so we don't set it here */ }; static enum wl12xx_acx_int_reg wl1251_acx_reg_table[ACX_REG_TABLE_LEN] = { [ACX_REG_INTERRUPT_TRIG] = (REGISTERS_BASE + 0x0474), [ACX_REG_INTERRUPT_TRIG_H] = (REGISTERS_BASE + 0x0478), [ACX_REG_INTERRUPT_MASK] = (REGISTERS_BASE + 0x0494), [ACX_REG_HINT_MASK_SET] = (REGISTERS_BASE + 0x0498), [ACX_REG_HINT_MASK_CLR] = (REGISTERS_BASE + 0x049C), [ACX_REG_INTERRUPT_NO_CLEAR] = (REGISTERS_BASE + 0x04B0), [ACX_REG_INTERRUPT_CLEAR] = (REGISTERS_BASE + 0x04A4), [ACX_REG_INTERRUPT_ACK] = (REGISTERS_BASE + 0x04A8), [ACX_REG_SLV_SOFT_RESET] = (REGISTERS_BASE + 0x0000), [ACX_REG_EE_START] = (REGISTERS_BASE + 0x080C), [ACX_REG_ECPU_CONTROL] = (REGISTERS_BASE + 0x0804) }; static int wl1251_upload_firmware(struct wl12xx *wl) { struct wl12xx_partition_set *p_table = wl->chip.p_table; int addr, chunk_num, partition_limit; size_t fw_data_len; u8 *p; /* whal_FwCtrl_LoadFwImageSm() */ wl12xx_debug(DEBUG_BOOT, "chip id before fw upload: 0x%x", wl12xx_reg_read32(wl, CHIP_ID_B)); /* 10.0 check firmware length and set partition */ fw_data_len = (wl->fw[4] << 24) | (wl->fw[5] << 16) | (wl->fw[6] << 8) | (wl->fw[7]); wl12xx_debug(DEBUG_BOOT, "fw_data_len %zu chunk_size %d", fw_data_len, CHUNK_SIZE); if ((fw_data_len % 4) != 0) { wl12xx_error("firmware length not multiple of four"); return -EIO; } wl12xx_set_partition(wl, p_table[PART_DOWN].mem.start, p_table[PART_DOWN].mem.size, p_table[PART_DOWN].reg.start, p_table[PART_DOWN].reg.size); /* 10.1 set partition limit and chunk num */ chunk_num = 0; partition_limit = p_table[PART_DOWN].mem.size; while (chunk_num < fw_data_len / CHUNK_SIZE) { /* 10.2 update partition, if needed */ addr = p_table[PART_DOWN].mem.start + (chunk_num + 2) * CHUNK_SIZE; if (addr > partition_limit) { addr = p_table[PART_DOWN].mem.start + chunk_num * CHUNK_SIZE; partition_limit = chunk_num * CHUNK_SIZE + p_table[PART_DOWN].mem.size; wl12xx_set_partition(wl, addr, p_table[PART_DOWN].mem.size, p_table[PART_DOWN].reg.start, p_table[PART_DOWN].reg.size); } /* 10.3 upload the chunk */ addr = p_table[PART_DOWN].mem.start + chunk_num * CHUNK_SIZE; p = wl->fw + FW_HDR_SIZE + chunk_num * CHUNK_SIZE; wl12xx_debug(DEBUG_BOOT, "uploading fw chunk 0x%p to 0x%x", p, addr); wl12xx_spi_mem_write(wl, addr, p, CHUNK_SIZE); chunk_num++; } /* 10.4 upload the last chunk */ addr = p_table[PART_DOWN].mem.start + chunk_num * CHUNK_SIZE; p = wl->fw + FW_HDR_SIZE + chunk_num * CHUNK_SIZE; wl12xx_debug(DEBUG_BOOT, "uploading fw last chunk (%zu B) 0x%p to 0x%x", fw_data_len % CHUNK_SIZE, p, addr); wl12xx_spi_mem_write(wl, addr, p, fw_data_len % CHUNK_SIZE); return 0; } static int wl1251_upload_nvs(struct wl12xx *wl) { size_t nvs_len, nvs_bytes_written, burst_len; int nvs_start, i; u32 dest_addr, val; u8 *nvs_ptr, *nvs; nvs = wl->nvs; if (nvs == NULL) return -ENODEV; nvs_ptr = nvs; nvs_len = wl->nvs_len; nvs_start = wl->fw_len; /* * Layout before the actual NVS tables: * 1 byte : burst length. * 2 bytes: destination address. * n bytes: data to burst copy. * * This is ended by a 0 length, then the NVS tables. */ while (nvs_ptr[0]) { burst_len = nvs_ptr[0]; dest_addr = (nvs_ptr[1] & 0xfe) | ((u32)(nvs_ptr[2] << 8)); /* We move our pointer to the data */ nvs_ptr += 3; for (i = 0; i < burst_len; i++) { val = (nvs_ptr[0] | (nvs_ptr[1] << 8) | (nvs_ptr[2] << 16) | (nvs_ptr[3] << 24)); wl12xx_debug(DEBUG_BOOT, "nvs burst write 0x%x: 0x%x", dest_addr, val); wl12xx_mem_write32(wl, dest_addr, val); nvs_ptr += 4; dest_addr += 4; } } /* * We've reached the first zero length, the first NVS table * is 7 bytes further. */ nvs_ptr += 7; nvs_len -= nvs_ptr - nvs; nvs_len = ALIGN(nvs_len, 4); /* Now we must set the partition correctly */ wl12xx_set_partition(wl, nvs_start, wl->chip.p_table[PART_DOWN].mem.size, wl->chip.p_table[PART_DOWN].reg.start, wl->chip.p_table[PART_DOWN].reg.size); /* And finally we upload the NVS tables */ nvs_bytes_written = 0; while (nvs_bytes_written < nvs_len) { val = (nvs_ptr[0] | (nvs_ptr[1] << 8) | (nvs_ptr[2] << 16) | (nvs_ptr[3] << 24)); val = cpu_to_le32(val); wl12xx_debug(DEBUG_BOOT, "nvs write table 0x%x: 0x%x", nvs_start, val); wl12xx_mem_write32(wl, nvs_start, val); nvs_ptr += 4; nvs_bytes_written += 4; nvs_start += 4; } return 0; } static int wl1251_boot(struct wl12xx *wl) { int ret = 0, minor_minor_e2_ver; u32 tmp, boot_data; ret = wl12xx_boot_soft_reset(wl); if (ret < 0) goto out; /* 2. start processing NVS file */ ret = wl->chip.op_upload_nvs(wl); if (ret < 0) goto out; /* write firmware's last address (ie. it's length) to * ACX_EEPROMLESS_IND_REG */ wl12xx_reg_write32(wl, ACX_EEPROMLESS_IND_REG, wl->fw_len); /* 6. read the EEPROM parameters */ tmp = wl12xx_reg_read32(wl, SCR_PAD2); /* 7. read bootdata */ wl->boot_attr.radio_type = (tmp & 0x0000FF00) >> 8; wl->boot_attr.major = (tmp & 0x00FF0000) >> 16; tmp = wl12xx_reg_read32(wl, SCR_PAD3); /* 8. check bootdata and call restart sequence */ wl->boot_attr.minor = (tmp & 0x00FF0000) >> 16; minor_minor_e2_ver = (tmp & 0xFF000000) >> 24; wl12xx_debug(DEBUG_BOOT, "radioType 0x%x majorE2Ver 0x%x " "minorE2Ver 0x%x minor_minor_e2_ver 0x%x", wl->boot_attr.radio_type, wl->boot_attr.major, wl->boot_attr.minor, minor_minor_e2_ver); ret = wl12xx_boot_init_seq(wl); if (ret < 0) goto out; /* 9. NVS processing done */ boot_data = wl12xx_reg_read32(wl, ACX_REG_ECPU_CONTROL); wl12xx_debug(DEBUG_BOOT, "halt boot_data 0x%x", boot_data); /* 10. check that ECPU_CONTROL_HALT bits are set in * pWhalBus->uBootData and start uploading firmware */ if ((boot_data & ECPU_CONTROL_HALT) == 0) { wl12xx_error("boot failed, ECPU_CONTROL_HALT not set"); ret = -EIO; goto out; } ret = wl->chip.op_upload_fw(wl); if (ret < 0) goto out; /* 10.5 start firmware */ ret = wl12xx_boot_run_firmware(wl); if (ret < 0) goto out; /* Get and save the firmware version */ wl12xx_acx_fw_version(wl, wl->chip.fw_ver, sizeof(wl->chip.fw_ver)); out: return ret; } static int wl1251_mem_cfg(struct wl12xx *wl) { struct wl1251_acx_config_memory mem_conf; int ret, i; wl12xx_debug(DEBUG_ACX, "wl1251 mem cfg"); /* memory config */ mem_conf.mem_config.num_stations = cpu_to_le16(DEFAULT_NUM_STATIONS); mem_conf.mem_config.rx_mem_block_num = 35; mem_conf.mem_config.tx_min_mem_block_num = 64; mem_conf.mem_config.num_tx_queues = MAX_TX_QUEUES; mem_conf.mem_config.host_if_options = HOSTIF_PKT_RING; mem_conf.mem_config.num_ssid_profiles = 1; mem_conf.mem_config.debug_buffer_size = cpu_to_le16(TRACE_BUFFER_MAX_SIZE); /* RX queue config */ mem_conf.rx_queue_config.dma_address = 0; mem_conf.rx_queue_config.num_descs = ACX_RX_DESC_DEF; mem_conf.rx_queue_config.priority = DEFAULT_RXQ_PRIORITY; mem_conf.rx_queue_config.type = DEFAULT_RXQ_TYPE; /* TX queue config */ for (i = 0; i < MAX_TX_QUEUES; i++) { mem_conf.tx_queue_config[i].num_descs = ACX_TX_DESC_DEF; mem_conf.tx_queue_config[i].attributes = i; } mem_conf.header.id = ACX_MEM_CFG; mem_conf.header.len = sizeof(struct wl1251_acx_config_memory) - sizeof(struct acx_header); mem_conf.header.len -= (MAX_TX_QUEUE_CONFIGS - mem_conf.mem_config.num_tx_queues) * sizeof(struct wl1251_acx_tx_queue_config); ret = wl12xx_cmd_configure(wl, &mem_conf, sizeof(struct wl1251_acx_config_memory)); if (ret < 0) wl12xx_warning("wl1251 mem config failed: %d", ret); return ret; } static int wl1251_hw_init_mem_config(struct wl12xx *wl) { int ret; ret = wl1251_mem_cfg(wl); if (ret < 0) return ret; wl->target_mem_map = kzalloc(sizeof(struct wl1251_acx_mem_map), GFP_KERNEL); if (!wl->target_mem_map) { wl12xx_error("couldn't allocate target memory map"); return -ENOMEM; } /* we now ask for the firmware built memory map */ ret = wl12xx_acx_mem_map(wl, wl->target_mem_map, sizeof(struct wl1251_acx_mem_map)); if (ret < 0) { wl12xx_error("couldn't retrieve firmware memory map"); kfree(wl->target_mem_map); wl->target_mem_map = NULL; return ret; } return 0; } static void wl1251_set_ecpu_ctrl(struct wl12xx *wl, u32 flag) { u32 cpu_ctrl; /* 10.5.0 run the firmware (I) */ cpu_ctrl = wl12xx_reg_read32(wl, ACX_REG_ECPU_CONTROL); /* 10.5.1 run the firmware (II) */ cpu_ctrl &= ~flag; wl12xx_reg_write32(wl, ACX_REG_ECPU_CONTROL, cpu_ctrl); } static void wl1251_target_enable_interrupts(struct wl12xx *wl) { /* Enable target's interrupts */ wl->intr_mask = WL1251_ACX_INTR_RX0_DATA | WL1251_ACX_INTR_RX1_DATA | WL1251_ACX_INTR_TX_RESULT | WL1251_ACX_INTR_EVENT_A | WL1251_ACX_INTR_EVENT_B | WL1251_ACX_INTR_INIT_COMPLETE; wl12xx_boot_target_enable_interrupts(wl); } static void wl1251_irq_work(struct work_struct *work) { u32 intr; struct wl12xx *wl = container_of(work, struct wl12xx, irq_work); mutex_lock(&wl->mutex); wl12xx_debug(DEBUG_IRQ, "IRQ work"); if (wl->state == WL12XX_STATE_OFF) goto out; wl12xx_ps_elp_wakeup(wl); wl12xx_reg_write32(wl, ACX_REG_INTERRUPT_MASK, WL1251_ACX_INTR_ALL); intr = wl12xx_reg_read32(wl, ACX_REG_INTERRUPT_CLEAR); wl12xx_debug(DEBUG_IRQ, "intr: 0x%x", intr); if (wl->data_path) { wl12xx_spi_mem_read(wl, wl->data_path->rx_control_addr, &wl->rx_counter, sizeof(u32)); /* We handle a frmware bug here */ switch ((wl->rx_counter - wl->rx_handled) & 0xf) { case 0: wl12xx_debug(DEBUG_IRQ, "RX: FW and host in sync"); intr &= ~WL1251_ACX_INTR_RX0_DATA; intr &= ~WL1251_ACX_INTR_RX1_DATA; break; case 1: wl12xx_debug(DEBUG_IRQ, "RX: FW +1"); intr |= WL1251_ACX_INTR_RX0_DATA; intr &= ~WL1251_ACX_INTR_RX1_DATA; break; case 2: wl12xx_debug(DEBUG_IRQ, "RX: FW +2"); intr |= WL1251_ACX_INTR_RX0_DATA; intr |= WL1251_ACX_INTR_RX1_DATA; break; default: wl12xx_warning("RX: FW and host out of sync: %d", wl->rx_counter - wl->rx_handled); break; } wl->rx_handled = wl->rx_counter; wl12xx_debug(DEBUG_IRQ, "RX counter: %d", wl->rx_counter); } intr &= wl->intr_mask; if (intr == 0) { wl12xx_debug(DEBUG_IRQ, "INTR is 0"); wl12xx_reg_write32(wl, ACX_REG_INTERRUPT_MASK, ~(wl->intr_mask)); goto out_sleep; } if (intr & WL1251_ACX_INTR_RX0_DATA) { wl12xx_debug(DEBUG_IRQ, "WL1251_ACX_INTR_RX0_DATA"); wl12xx_rx(wl); } if (intr & WL1251_ACX_INTR_RX1_DATA) { wl12xx_debug(DEBUG_IRQ, "WL1251_ACX_INTR_RX1_DATA"); wl12xx_rx(wl); } if (intr & WL1251_ACX_INTR_TX_RESULT) { wl12xx_debug(DEBUG_IRQ, "WL1251_ACX_INTR_TX_RESULT"); wl12xx_tx_complete(wl); } if (intr & (WL1251_ACX_INTR_EVENT_A | WL1251_ACX_INTR_EVENT_B)) { wl12xx_debug(DEBUG_IRQ, "WL1251_ACX_INTR_EVENT (0x%x)", intr); if (intr & WL1251_ACX_INTR_EVENT_A) wl12xx_event_handle(wl, 0); else wl12xx_event_handle(wl, 1); } if (intr & WL1251_ACX_INTR_INIT_COMPLETE) wl12xx_debug(DEBUG_IRQ, "WL1251_ACX_INTR_INIT_COMPLETE"); wl12xx_reg_write32(wl, ACX_REG_INTERRUPT_MASK, ~(wl->intr_mask)); out_sleep: wl12xx_ps_elp_sleep(wl); out: mutex_unlock(&wl->mutex); } static int wl1251_hw_init_txq_fill(u8 qid, struct acx_tx_queue_qos_config *config, u32 num_blocks) { config->qid = qid; switch (qid) { case QOS_AC_BE: config->high_threshold = (QOS_TX_HIGH_BE_DEF * num_blocks) / 100; config->low_threshold = (QOS_TX_LOW_BE_DEF * num_blocks) / 100; break; case QOS_AC_BK: config->high_threshold = (QOS_TX_HIGH_BK_DEF * num_blocks) / 100; config->low_threshold = (QOS_TX_LOW_BK_DEF * num_blocks) / 100; break; case QOS_AC_VI: config->high_threshold = (QOS_TX_HIGH_VI_DEF * num_blocks) / 100; config->low_threshold = (QOS_TX_LOW_VI_DEF * num_blocks) / 100; break; case QOS_AC_VO: config->high_threshold = (QOS_TX_HIGH_VO_DEF * num_blocks) / 100; config->low_threshold = (QOS_TX_LOW_VO_DEF * num_blocks) / 100; break; default: wl12xx_error("Invalid TX queue id: %d", qid); return -EINVAL; } return 0; } static int wl1251_hw_init_tx_queue_config(struct wl12xx *wl) { struct acx_tx_queue_qos_config config; struct wl1251_acx_mem_map *wl_mem_map = wl->target_mem_map; int ret, i; wl12xx_debug(DEBUG_ACX, "acx tx queue config"); config.header.id = ACX_TX_QUEUE_CFG; config.header.len = sizeof(struct acx_tx_queue_qos_config) - sizeof(struct acx_header); for (i = 0; i < MAX_NUM_OF_AC; i++) { ret = wl1251_hw_init_txq_fill(i, &config, wl_mem_map->num_tx_mem_blocks); if (ret < 0) return ret; ret = wl12xx_cmd_configure(wl, &config, sizeof(config)); if (ret < 0) return ret; } return 0; } static int wl1251_hw_init_data_path_config(struct wl12xx *wl) { int ret; /* asking for the data path parameters */ wl->data_path = kzalloc(sizeof(struct acx_data_path_params_resp), GFP_KERNEL); if (!wl->data_path) { wl12xx_error("Couldnt allocate data path parameters"); return -ENOMEM; } ret = wl12xx_acx_data_path_params(wl, wl->data_path); if (ret < 0) { kfree(wl->data_path); wl->data_path = NULL; return ret; } return 0; } static int wl1251_hw_init(struct wl12xx *wl) { struct wl1251_acx_mem_map *wl_mem_map; int ret; ret = wl12xx_hw_init_hwenc_config(wl); if (ret < 0) return ret; /* Template settings */ ret = wl12xx_hw_init_templates_config(wl); if (ret < 0) return ret; /* Default memory configuration */ ret = wl1251_hw_init_mem_config(wl); if (ret < 0) return ret; /* Default data path configuration */ ret = wl1251_hw_init_data_path_config(wl); if (ret < 0) goto out_free_memmap; /* RX config */ ret = wl12xx_hw_init_rx_config(wl, RX_CFG_PROMISCUOUS | RX_CFG_TSF, RX_FILTER_OPTION_DEF); /* RX_CONFIG_OPTION_ANY_DST_ANY_BSS, RX_FILTER_OPTION_FILTER_ALL); */ if (ret < 0) goto out_free_data_path; /* TX queues config */ ret = wl1251_hw_init_tx_queue_config(wl); if (ret < 0) goto out_free_data_path; /* PHY layer config */ ret = wl12xx_hw_init_phy_config(wl); if (ret < 0) goto out_free_data_path; /* Beacon filtering */ ret = wl12xx_hw_init_beacon_filter(wl); if (ret < 0) goto out_free_data_path; /* Bluetooth WLAN coexistence */ ret = wl12xx_hw_init_pta(wl); if (ret < 0) goto out_free_data_path; /* Energy detection */ ret = wl12xx_hw_init_energy_detection(wl); if (ret < 0) goto out_free_data_path; /* Beacons and boradcast settings */ ret = wl12xx_hw_init_beacon_broadcast(wl); if (ret < 0) goto out_free_data_path; /* Enable data path */ ret = wl12xx_cmd_data_path(wl, wl->channel, 1); if (ret < 0) goto out_free_data_path; /* Default power state */ ret = wl12xx_hw_init_power_auth(wl); if (ret < 0) goto out_free_data_path; wl_mem_map = wl->target_mem_map; wl12xx_info("%d tx blocks at 0x%x, %d rx blocks at 0x%x", wl_mem_map->num_tx_mem_blocks, wl->data_path->tx_control_addr, wl_mem_map->num_rx_mem_blocks, wl->data_path->rx_control_addr); return 0; out_free_data_path: kfree(wl->data_path); out_free_memmap: kfree(wl->target_mem_map); return ret; } static int wl1251_plt_init(struct wl12xx *wl) { int ret; ret = wl1251_hw_init_mem_config(wl); if (ret < 0) return ret; ret = wl12xx_cmd_data_path(wl, wl->channel, 1); if (ret < 0) return ret; return 0; } void wl1251_setup(struct wl12xx *wl) { /* FIXME: Is it better to use strncpy here or is this ok? */ wl->chip.fw_filename = WL1251_FW_NAME; wl->chip.nvs_filename = WL1251_NVS_NAME; /* Now we know what chip we're using, so adjust the power on sleep * time accordingly */ wl->chip.power_on_sleep = WL1251_POWER_ON_SLEEP; wl->chip.intr_cmd_complete = WL1251_ACX_INTR_CMD_COMPLETE; wl->chip.intr_init_complete = WL1251_ACX_INTR_INIT_COMPLETE; wl->chip.op_upload_nvs = wl1251_upload_nvs; wl->chip.op_upload_fw = wl1251_upload_firmware; wl->chip.op_boot = wl1251_boot; wl->chip.op_set_ecpu_ctrl = wl1251_set_ecpu_ctrl; wl->chip.op_target_enable_interrupts = wl1251_target_enable_interrupts; wl->chip.op_hw_init = wl1251_hw_init; wl->chip.op_plt_init = wl1251_plt_init; wl->chip.p_table = wl1251_part_table; wl->chip.acx_reg_table = wl1251_acx_reg_table; INIT_WORK(&wl->irq_work, wl1251_irq_work); }