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1022 1023 1024 1025 1026 1027 1028 1029 1030 1031 1032 1033 1034 1035 1036 1037 1038 1039 1040 1041 1042 1043 1044 1045 1046 1047 1048 1049 1050 1051 1052 1053 1054 1055 1056 1057 1058 1059 1060 1061 1062 1063 1064 1065 1066 1067 1068 1069 1070 1071 1072 1073 1074 1075 1076 1077 1078 1079 1080 1081 1082 1083 1084 1085 1086 1087 1088 1089 1090 1091 1092 1093 1094 1095 1096 1097 1098 1099 1100 1101 1102 1103 1104 1105 1106 1107 1108 1109 1110 1111 1112 1113 1114 1115 1116 1117 1118 1119 1120 1121 1122 1123 1124 1125 1126 1127 1128 1129 1130 1131 1132 1133 1134 1135 1136 1137 1138 1139 1140 1141 1142 1143 | // SPDX-License-Identifier: GPL-2.0 /* * Driver for KeyStream, KS7010 based SDIO cards. * * Copyright (C) 2006-2008 KeyStream Corp. * Copyright (C) 2009 Renesas Technology Corp. * Copyright (C) 2016 Sang Engineering, Wolfram Sang */ #include <linux/atomic.h> #include <linux/firmware.h> #include <linux/jiffies.h> #include <linux/mmc/card.h> #include <linux/mmc/sdio_func.h> #include <linux/module.h> #include <linux/workqueue.h> #include "ks_wlan.h" #include "ks_hostif.h" #define ROM_FILE "ks7010sd.rom" /* SDIO KeyStream vendor and device */ #define SDIO_VENDOR_ID_KS_CODE_A 0x005b #define SDIO_VENDOR_ID_KS_CODE_B 0x0023 /* Older sources suggest earlier versions were named 7910 or 79xx */ #define SDIO_DEVICE_ID_KS_7010 0x7910 /* Read/Write Status Register */ #define READ_STATUS_REG 0x000000 #define WRITE_STATUS_REG 0x00000C enum reg_status_type { REG_STATUS_BUSY, REG_STATUS_IDLE }; /* Read Index Register */ #define READ_INDEX_REG 0x000004 /* Read Data Size Register */ #define READ_DATA_SIZE_REG 0x000008 /* Write Index Register */ #define WRITE_INDEX_REG 0x000010 /* * Write Status/Read Data Size Register * for network packet (less than 2048 bytes data) */ #define WSTATUS_RSIZE_REG 0x000014 /* Write Status Register value */ #define WSTATUS_MASK 0x80 /* Read Data Size Register value [10:4] */ #define RSIZE_MASK 0x7F /* ARM to SD interrupt Enable */ #define INT_ENABLE_REG 0x000020 /* ARM to SD interrupt Pending */ #define INT_PENDING_REG 0x000024 #define INT_GCR_B BIT(7) #define INT_GCR_A BIT(6) #define INT_WRITE_STATUS BIT(5) #define INT_WRITE_INDEX BIT(4) #define INT_WRITE_SIZE BIT(3) #define INT_READ_STATUS BIT(2) #define INT_READ_INDEX BIT(1) #define INT_READ_SIZE BIT(0) /* General Communication Register A */ #define GCR_A_REG 0x000028 enum gen_com_reg_a { GCR_A_INIT, GCR_A_REMAP, GCR_A_RUN }; /* General Communication Register B */ #define GCR_B_REG 0x00002C enum gen_com_reg_b { GCR_B_ACTIVE, GCR_B_DOZE }; /* Wakeup Register */ #define WAKEUP_REG 0x008018 #define WAKEUP_REQ 0x5a /* AHB Data Window 0x010000-0x01FFFF */ #define DATA_WINDOW 0x010000 #define WINDOW_SIZE (64 * 1024) #define KS7010_IRAM_ADDRESS 0x06000000 #define KS7010_IO_BLOCK_SIZE 512 /** * struct ks_sdio_card - SDIO device data. * * Structure is used as the &struct sdio_func private data. * * @func: Pointer to the SDIO function device. * @priv: Pointer to the &struct net_device private data. */ struct ks_sdio_card { struct sdio_func *func; struct ks_wlan_private *priv; }; static struct sdio_func *ks7010_to_func(struct ks_wlan_private *priv) { struct ks_sdio_card *ks_sdio = priv->if_hw; return ks_sdio->func; } /* Read single byte from device address into byte (CMD52) */ static int ks7010_sdio_readb(struct ks_wlan_private *priv, u32 address, u8 *byte) { struct sdio_func *func = ks7010_to_func(priv); int ret; *byte = sdio_readb(func, address, &ret); return ret; } /* Read length bytes from device address into buffer (CMD53) */ static int ks7010_sdio_read(struct ks_wlan_private *priv, u32 address, u8 *buffer, unsigned int length) { struct sdio_func *func = ks7010_to_func(priv); return sdio_memcpy_fromio(func, buffer, address, length); } /* Write single byte to device address (CMD52) */ static int ks7010_sdio_writeb(struct ks_wlan_private *priv, u32 address, u8 byte) { struct sdio_func *func = ks7010_to_func(priv); int ret; sdio_writeb(func, byte, address, &ret); return ret; } /* Write length bytes to device address from buffer (CMD53) */ static int ks7010_sdio_write(struct ks_wlan_private *priv, u32 address, u8 *buffer, unsigned int length) { struct sdio_func *func = ks7010_to_func(priv); return sdio_memcpy_toio(func, address, buffer, length); } static void ks_wlan_hw_sleep_doze_request(struct ks_wlan_private *priv) { int ret; /* clear request */ atomic_set(&priv->sleepstatus.doze_request, 0); if (atomic_read(&priv->sleepstatus.status) == 0) { ret = ks7010_sdio_writeb(priv, GCR_B_REG, GCR_B_DOZE); if (ret) { netdev_err(priv->net_dev, "write GCR_B_REG\n"); goto set_sleep_mode; } atomic_set(&priv->sleepstatus.status, 1); priv->last_doze = jiffies; } set_sleep_mode: priv->sleep_mode = atomic_read(&priv->sleepstatus.status); } static void ks_wlan_hw_sleep_wakeup_request(struct ks_wlan_private *priv) { int ret; /* clear request */ atomic_set(&priv->sleepstatus.wakeup_request, 0); if (atomic_read(&priv->sleepstatus.status) == 1) { ret = ks7010_sdio_writeb(priv, WAKEUP_REG, WAKEUP_REQ); if (ret) { netdev_err(priv->net_dev, "write WAKEUP_REG\n"); goto set_sleep_mode; } atomic_set(&priv->sleepstatus.status, 0); priv->last_wakeup = jiffies; ++priv->wakeup_count; } set_sleep_mode: priv->sleep_mode = atomic_read(&priv->sleepstatus.status); } void ks_wlan_hw_wakeup_request(struct ks_wlan_private *priv) { int ret; if (atomic_read(&priv->psstatus.status) == PS_SNOOZE) { ret = ks7010_sdio_writeb(priv, WAKEUP_REG, WAKEUP_REQ); if (ret) netdev_err(priv->net_dev, "write WAKEUP_REG\n"); priv->last_wakeup = jiffies; ++priv->wakeup_count; } } static void _ks_wlan_hw_power_save(struct ks_wlan_private *priv) { u8 byte; int ret; if (priv->reg.power_mgmt == POWER_MGMT_ACTIVE) return; if (priv->reg.operation_mode != MODE_INFRASTRUCTURE) return; if (!is_connect_status(priv->connect_status)) return; if (priv->dev_state != DEVICE_STATE_SLEEP) return; if (atomic_read(&priv->psstatus.status) == PS_SNOOZE) return; netdev_dbg(priv->net_dev, "STATUS:\n" "- psstatus.status = %d\n" "- psstatus.confirm_wait = %d\n" "- psstatus.snooze_guard = %d\n" "- txq_count = %d\n", atomic_read(&priv->psstatus.status), atomic_read(&priv->psstatus.confirm_wait), atomic_read(&priv->psstatus.snooze_guard), txq_count(priv)); if (atomic_read(&priv->psstatus.confirm_wait) || atomic_read(&priv->psstatus.snooze_guard) || txq_has_space(priv)) { queue_delayed_work(priv->wq, &priv->rw_dwork, 0); return; } ret = ks7010_sdio_readb(priv, INT_PENDING_REG, &byte); if (ret) { netdev_err(priv->net_dev, "read INT_PENDING_REG\n"); goto queue_delayed_work; } if (byte) goto queue_delayed_work; ret = ks7010_sdio_writeb(priv, GCR_B_REG, GCR_B_DOZE); if (ret) { netdev_err(priv->net_dev, "write GCR_B_REG\n"); goto queue_delayed_work; } atomic_set(&priv->psstatus.status, PS_SNOOZE); return; queue_delayed_work: queue_delayed_work(priv->wq, &priv->rw_dwork, 1); } int ks_wlan_hw_power_save(struct ks_wlan_private *priv) { queue_delayed_work(priv->wq, &priv->rw_dwork, 1); return 0; } static int enqueue_txdev(struct ks_wlan_private *priv, unsigned char *p, unsigned long size, void (*complete_handler)(struct ks_wlan_private *priv, struct sk_buff *skb), struct sk_buff *skb) { struct tx_device_buffer *sp; int ret; if (priv->dev_state < DEVICE_STATE_BOOT) { ret = -EPERM; goto err_complete; } if ((TX_DEVICE_BUFF_SIZE - 1) <= txq_count(priv)) { netdev_err(priv->net_dev, "tx buffer overflow\n"); ret = -EOVERFLOW; goto err_complete; } sp = &priv->tx_dev.tx_dev_buff[priv->tx_dev.qtail]; sp->sendp = p; sp->size = size; sp->complete_handler = complete_handler; sp->skb = skb; inc_txqtail(priv); return 0; err_complete: kfree(p); if (complete_handler) (*complete_handler)(priv, skb); return ret; } /* write data */ static int write_to_device(struct ks_wlan_private *priv, u8 *buffer, unsigned long size) { struct hostif_hdr *hdr; int ret; hdr = (struct hostif_hdr *)buffer; if (le16_to_cpu(hdr->event) < HIF_DATA_REQ || le16_to_cpu(hdr->event) > HIF_REQ_MAX) { netdev_err(priv->net_dev, "unknown event=%04X\n", hdr->event); return 0; } ret = ks7010_sdio_write(priv, DATA_WINDOW, buffer, size); if (ret) { netdev_err(priv->net_dev, "write DATA_WINDOW\n"); return ret; } ret = ks7010_sdio_writeb(priv, WRITE_STATUS_REG, REG_STATUS_BUSY); if (ret) { netdev_err(priv->net_dev, "write WRITE_STATUS_REG\n"); return ret; } return 0; } static void tx_device_task(struct ks_wlan_private *priv) { struct tx_device_buffer *sp; int ret; if (!txq_has_space(priv) || atomic_read(&priv->psstatus.status) == PS_SNOOZE) return; sp = &priv->tx_dev.tx_dev_buff[priv->tx_dev.qhead]; if (priv->dev_state >= DEVICE_STATE_BOOT) { ret = write_to_device(priv, sp->sendp, sp->size); if (ret) { netdev_err(priv->net_dev, "write_to_device error !!(%d)\n", ret); queue_delayed_work(priv->wq, &priv->rw_dwork, 1); return; } } kfree(sp->sendp); if (sp->complete_handler) /* TX Complete */ (*sp->complete_handler)(priv, sp->skb); inc_txqhead(priv); if (txq_has_space(priv)) queue_delayed_work(priv->wq, &priv->rw_dwork, 0); } int ks_wlan_hw_tx(struct ks_wlan_private *priv, void *p, unsigned long size, void (*complete_handler)(struct ks_wlan_private *priv, struct sk_buff *skb), struct sk_buff *skb) { int result; struct hostif_hdr *hdr; hdr = (struct hostif_hdr *)p; if (le16_to_cpu(hdr->event) < HIF_DATA_REQ || le16_to_cpu(hdr->event) > HIF_REQ_MAX) { netdev_err(priv->net_dev, "unknown event=%04X\n", hdr->event); return 0; } /* add event to hostt buffer */ priv->hostt.buff[priv->hostt.qtail] = le16_to_cpu(hdr->event); priv->hostt.qtail = (priv->hostt.qtail + 1) % SME_EVENT_BUFF_SIZE; spin_lock_bh(&priv->tx_dev.tx_dev_lock); result = enqueue_txdev(priv, p, size, complete_handler, skb); spin_unlock_bh(&priv->tx_dev.tx_dev_lock); if (txq_has_space(priv)) queue_delayed_work(priv->wq, &priv->rw_dwork, 0); return result; } static void rx_event_task(struct tasklet_struct *t) { struct ks_wlan_private *priv = from_tasklet(priv, t, rx_bh_task); struct rx_device_buffer *rp; if (rxq_has_space(priv) && priv->dev_state >= DEVICE_STATE_BOOT) { rp = &priv->rx_dev.rx_dev_buff[priv->rx_dev.qhead]; hostif_receive(priv, rp->data, rp->size); inc_rxqhead(priv); if (rxq_has_space(priv)) tasklet_schedule(&priv->rx_bh_task); } } static void ks_wlan_hw_rx(struct ks_wlan_private *priv, size_t size) { int ret; struct rx_device_buffer *rx_buffer; struct hostif_hdr *hdr; u16 event = 0; /* receive data */ if (rxq_count(priv) >= (RX_DEVICE_BUFF_SIZE - 1)) { netdev_err(priv->net_dev, "rx buffer overflow\n"); return; } rx_buffer = &priv->rx_dev.rx_dev_buff[priv->rx_dev.qtail]; ret = ks7010_sdio_read(priv, DATA_WINDOW, &rx_buffer->data[0], hif_align_size(size)); if (ret) return; /* length check */ if (size > 2046 || size == 0) { #ifdef DEBUG print_hex_dump_bytes("INVALID DATA dump: ", DUMP_PREFIX_OFFSET, rx_buffer->data, 32); #endif ret = ks7010_sdio_writeb(priv, READ_STATUS_REG, REG_STATUS_IDLE); if (ret) netdev_err(priv->net_dev, "write READ_STATUS_REG\n"); /* length check fail */ return; } hdr = (struct hostif_hdr *)&rx_buffer->data[0]; rx_buffer->size = le16_to_cpu(hdr->size) + sizeof(hdr->size); event = le16_to_cpu(hdr->event); inc_rxqtail(priv); ret = ks7010_sdio_writeb(priv, READ_STATUS_REG, REG_STATUS_IDLE); if (ret) netdev_err(priv->net_dev, "write READ_STATUS_REG\n"); if (atomic_read(&priv->psstatus.confirm_wait) && is_hif_conf(event)) { netdev_dbg(priv->net_dev, "IS_HIF_CONF true !!\n"); atomic_dec(&priv->psstatus.confirm_wait); } tasklet_schedule(&priv->rx_bh_task); } static void ks7010_rw_function(struct work_struct *work) { struct ks_wlan_private *priv = container_of(work, struct ks_wlan_private, rw_dwork.work); struct sdio_func *func = ks7010_to_func(priv); u8 byte; int ret; /* wait after DOZE */ if (time_after(priv->last_doze + msecs_to_jiffies(30), jiffies)) { netdev_dbg(priv->net_dev, "wait after DOZE\n"); queue_delayed_work(priv->wq, &priv->rw_dwork, 1); return; } /* wait after WAKEUP */ while (time_after(priv->last_wakeup + msecs_to_jiffies(30), jiffies)) { netdev_dbg(priv->net_dev, "wait after WAKEUP\n"); dev_info(&func->dev, "wake: %lu %lu\n", priv->last_wakeup + msecs_to_jiffies(30), jiffies); msleep(30); } sdio_claim_host(func); /* power save wakeup */ if (atomic_read(&priv->psstatus.status) == PS_SNOOZE) { if (txq_has_space(priv)) { ks_wlan_hw_wakeup_request(priv); queue_delayed_work(priv->wq, &priv->rw_dwork, 1); } goto release_host; } /* sleep mode doze */ if (atomic_read(&priv->sleepstatus.doze_request) == 1) { ks_wlan_hw_sleep_doze_request(priv); goto release_host; } /* sleep mode wakeup */ if (atomic_read(&priv->sleepstatus.wakeup_request) == 1) { ks_wlan_hw_sleep_wakeup_request(priv); goto release_host; } /* read (WriteStatus/ReadDataSize FN1:00_0014) */ ret = ks7010_sdio_readb(priv, WSTATUS_RSIZE_REG, &byte); if (ret) { netdev_err(priv->net_dev, "read WSTATUS_RSIZE_REG psstatus=%d\n", atomic_read(&priv->psstatus.status)); goto release_host; } if (byte & RSIZE_MASK) { /* Read schedule */ ks_wlan_hw_rx(priv, (size_t)((byte & RSIZE_MASK) << 4)); } if ((byte & WSTATUS_MASK)) tx_device_task(priv); _ks_wlan_hw_power_save(priv); release_host: sdio_release_host(func); } static void ks_sdio_interrupt(struct sdio_func *func) { int ret; struct ks_sdio_card *card; struct ks_wlan_private *priv; u8 status, rsize, byte; card = sdio_get_drvdata(func); priv = card->priv; if (priv->dev_state < DEVICE_STATE_BOOT) goto queue_delayed_work; ret = ks7010_sdio_readb(priv, INT_PENDING_REG, &status); if (ret) { netdev_err(priv->net_dev, "read INT_PENDING_REG\n"); goto queue_delayed_work; } /* schedule task for interrupt status */ /* bit7 -> Write General Communication B register */ /* read (General Communication B register) */ /* bit5 -> Write Status Idle */ /* bit2 -> Read Status Busy */ if (status & INT_GCR_B || atomic_read(&priv->psstatus.status) == PS_SNOOZE) { ret = ks7010_sdio_readb(priv, GCR_B_REG, &byte); if (ret) { netdev_err(priv->net_dev, "read GCR_B_REG\n"); goto queue_delayed_work; } if (byte == GCR_B_ACTIVE) { if (atomic_read(&priv->psstatus.status) == PS_SNOOZE) { atomic_set(&priv->psstatus.status, PS_WAKEUP); priv->wakeup_count = 0; } complete(&priv->psstatus.wakeup_wait); } } do { /* read (WriteStatus/ReadDataSize FN1:00_0014) */ ret = ks7010_sdio_readb(priv, WSTATUS_RSIZE_REG, &byte); if (ret) { netdev_err(priv->net_dev, "read WSTATUS_RSIZE_REG\n"); goto queue_delayed_work; } rsize = byte & RSIZE_MASK; if (rsize != 0) /* Read schedule */ ks_wlan_hw_rx(priv, (size_t)(rsize << 4)); if (byte & WSTATUS_MASK) { if (atomic_read(&priv->psstatus.status) == PS_SNOOZE) { if (txq_has_space(priv)) { ks_wlan_hw_wakeup_request(priv); queue_delayed_work(priv->wq, &priv->rw_dwork, 1); return; } } else { tx_device_task(priv); } } } while (rsize); queue_delayed_work: queue_delayed_work(priv->wq, &priv->rw_dwork, 0); } static int trx_device_init(struct ks_wlan_private *priv) { priv->tx_dev.qhead = 0; priv->tx_dev.qtail = 0; priv->rx_dev.qhead = 0; priv->rx_dev.qtail = 0; spin_lock_init(&priv->tx_dev.tx_dev_lock); spin_lock_init(&priv->rx_dev.rx_dev_lock); tasklet_setup(&priv->rx_bh_task, rx_event_task); return 0; } static void trx_device_exit(struct ks_wlan_private *priv) { struct tx_device_buffer *sp; /* tx buffer clear */ while (txq_has_space(priv)) { sp = &priv->tx_dev.tx_dev_buff[priv->tx_dev.qhead]; kfree(sp->sendp); if (sp->complete_handler) /* TX Complete */ (*sp->complete_handler)(priv, sp->skb); inc_txqhead(priv); } tasklet_kill(&priv->rx_bh_task); } static int ks7010_sdio_update_index(struct ks_wlan_private *priv, u32 index) { int ret; unsigned char *data_buf; data_buf = kmemdup(&index, sizeof(u32), GFP_KERNEL); if (!data_buf) return -ENOMEM; ret = ks7010_sdio_write(priv, WRITE_INDEX_REG, data_buf, sizeof(index)); if (ret) goto err_free_data_buf; ret = ks7010_sdio_write(priv, READ_INDEX_REG, data_buf, sizeof(index)); if (ret) goto err_free_data_buf; return 0; err_free_data_buf: kfree(data_buf); return ret; } #define ROM_BUFF_SIZE (64 * 1024) static int ks7010_sdio_data_compare(struct ks_wlan_private *priv, u32 address, u8 *data, unsigned int size) { int ret; u8 *read_buf; read_buf = kmalloc(ROM_BUFF_SIZE, GFP_KERNEL); if (!read_buf) return -ENOMEM; ret = ks7010_sdio_read(priv, address, read_buf, size); if (ret) goto err_free_read_buf; if (memcmp(data, read_buf, size) != 0) { ret = -EIO; netdev_err(priv->net_dev, "data compare error (%d)\n", ret); goto err_free_read_buf; } return 0; err_free_read_buf: kfree(read_buf); return ret; } static int ks7010_copy_firmware(struct ks_wlan_private *priv, const struct firmware *fw_entry) { unsigned int length; unsigned int size; unsigned int offset; unsigned int n = 0; u8 *rom_buf; int ret; rom_buf = kmalloc(ROM_BUFF_SIZE, GFP_KERNEL); if (!rom_buf) return -ENOMEM; length = fw_entry->size; do { if (length >= ROM_BUFF_SIZE) { size = ROM_BUFF_SIZE; length = length - ROM_BUFF_SIZE; } else { size = length; length = 0; } if (size == 0) break; memcpy(rom_buf, fw_entry->data + n, size); offset = n; ret = ks7010_sdio_update_index(priv, KS7010_IRAM_ADDRESS + offset); if (ret) goto free_rom_buf; ret = ks7010_sdio_write(priv, DATA_WINDOW, rom_buf, size); if (ret) goto free_rom_buf; ret = ks7010_sdio_data_compare(priv, DATA_WINDOW, rom_buf, size); if (ret) goto free_rom_buf; n += size; } while (size); ret = ks7010_sdio_writeb(priv, GCR_A_REG, GCR_A_REMAP); free_rom_buf: kfree(rom_buf); return ret; } static int ks7010_upload_firmware(struct ks_sdio_card *card) { struct ks_wlan_private *priv = card->priv; struct sdio_func *func = ks7010_to_func(priv); unsigned int n; u8 byte = 0; int ret; const struct firmware *fw_entry = NULL; sdio_claim_host(func); /* Firmware running ? */ ret = ks7010_sdio_readb(priv, GCR_A_REG, &byte); if (ret) goto release_host; if (byte == GCR_A_RUN) { netdev_dbg(priv->net_dev, "MAC firmware running ...\n"); ret = -EBUSY; goto release_host; } ret = request_firmware(&fw_entry, ROM_FILE, &func->dev); if (ret) goto release_host; ret = ks7010_copy_firmware(priv, fw_entry); if (ret) goto release_firmware; /* Firmware running check */ for (n = 0; n < 50; ++n) { usleep_range(10000, 11000); /* wait_ms(10); */ ret = ks7010_sdio_readb(priv, GCR_A_REG, &byte); if (ret) goto release_firmware; if (byte == GCR_A_RUN) break; } if ((50) <= n) { netdev_err(priv->net_dev, "firmware can't start\n"); ret = -EIO; goto release_firmware; } ret = 0; release_firmware: release_firmware(fw_entry); release_host: sdio_release_host(func); return ret; } static void ks7010_sme_enqueue_events(struct ks_wlan_private *priv) { static const u16 init_events[] = { SME_GET_EEPROM_CKSUM, SME_STOP_REQUEST, SME_RTS_THRESHOLD_REQUEST, SME_FRAGMENTATION_THRESHOLD_REQUEST, SME_WEP_INDEX_REQUEST, SME_WEP_KEY1_REQUEST, SME_WEP_KEY2_REQUEST, SME_WEP_KEY3_REQUEST, SME_WEP_KEY4_REQUEST, SME_WEP_FLAG_REQUEST, SME_RSN_ENABLED_REQUEST, SME_MODE_SET_REQUEST, SME_START_REQUEST }; int ev; for (ev = 0; ev < ARRAY_SIZE(init_events); ev++) hostif_sme_enqueue(priv, init_events[ev]); } static void ks7010_card_init(struct ks_wlan_private *priv) { init_completion(&priv->confirm_wait); /* get mac address & firmware version */ hostif_sme_enqueue(priv, SME_START); if (!wait_for_completion_interruptible_timeout (&priv->confirm_wait, 5 * HZ)) { netdev_dbg(priv->net_dev, "wait time out!! SME_START\n"); } if (priv->mac_address_valid && priv->version_size != 0) priv->dev_state = DEVICE_STATE_PREINIT; ks7010_sme_enqueue_events(priv); if (!wait_for_completion_interruptible_timeout (&priv->confirm_wait, 5 * HZ)) { netdev_dbg(priv->net_dev, "wait time out!! wireless parameter set\n"); } if (priv->dev_state >= DEVICE_STATE_PREINIT) { netdev_dbg(priv->net_dev, "DEVICE READY!!\n"); priv->dev_state = DEVICE_STATE_READY; } } static void ks7010_init_defaults(struct ks_wlan_private *priv) { priv->reg.tx_rate = TX_RATE_AUTO; priv->reg.preamble = LONG_PREAMBLE; priv->reg.power_mgmt = POWER_MGMT_ACTIVE; priv->reg.scan_type = ACTIVE_SCAN; priv->reg.beacon_lost_count = 20; priv->reg.rts = 2347UL; priv->reg.fragment = 2346UL; priv->reg.phy_type = D_11BG_COMPATIBLE_MODE; priv->reg.cts_mode = CTS_MODE_FALSE; priv->reg.rate_set.body[11] = TX_RATE_54M; priv->reg.rate_set.body[10] = TX_RATE_48M; priv->reg.rate_set.body[9] = TX_RATE_36M; priv->reg.rate_set.body[8] = TX_RATE_18M; priv->reg.rate_set.body[7] = TX_RATE_9M; priv->reg.rate_set.body[6] = TX_RATE_24M | BASIC_RATE; priv->reg.rate_set.body[5] = TX_RATE_12M | BASIC_RATE; priv->reg.rate_set.body[4] = TX_RATE_6M | BASIC_RATE; priv->reg.rate_set.body[3] = TX_RATE_11M | BASIC_RATE; priv->reg.rate_set.body[2] = TX_RATE_5M | BASIC_RATE; priv->reg.rate_set.body[1] = TX_RATE_2M | BASIC_RATE; priv->reg.rate_set.body[0] = TX_RATE_1M | BASIC_RATE; priv->reg.tx_rate = TX_RATE_FULL_AUTO; priv->reg.rate_set.size = 12; } static int ks7010_sdio_setup_irqs(struct sdio_func *func) { int ret; /* interrupt disable */ sdio_writeb(func, 0, INT_ENABLE_REG, &ret); if (ret) goto irq_error; sdio_writeb(func, 0xff, INT_PENDING_REG, &ret); if (ret) goto irq_error; /* setup interrupt handler */ ret = sdio_claim_irq(func, ks_sdio_interrupt); irq_error: return ret; } static void ks7010_sdio_init_irqs(struct sdio_func *func, struct ks_wlan_private *priv) { u8 byte; int ret; /* * interrupt setting * clear Interrupt status write * (ARMtoSD_InterruptPending FN1:00_0024) */ sdio_claim_host(func); ret = ks7010_sdio_writeb(priv, INT_PENDING_REG, 0xff); sdio_release_host(func); if (ret) netdev_err(priv->net_dev, "write INT_PENDING_REG\n"); /* enable ks7010sdio interrupt */ byte = (INT_GCR_B | INT_READ_STATUS | INT_WRITE_STATUS); sdio_claim_host(func); ret = ks7010_sdio_writeb(priv, INT_ENABLE_REG, byte); sdio_release_host(func); if (ret) netdev_err(priv->net_dev, "write INT_ENABLE_REG\n"); } static void ks7010_private_init(struct ks_wlan_private *priv, struct ks_sdio_card *card, struct net_device *netdev) { /* private memory initialize */ priv->if_hw = card; priv->dev_state = DEVICE_STATE_PREBOOT; priv->net_dev = netdev; priv->firmware_version[0] = '\0'; priv->version_size = 0; priv->last_doze = jiffies; priv->last_wakeup = jiffies; memset(&priv->nstats, 0, sizeof(priv->nstats)); memset(&priv->wstats, 0, sizeof(priv->wstats)); /* sleep mode */ atomic_set(&priv->sleepstatus.status, 0); atomic_set(&priv->sleepstatus.doze_request, 0); atomic_set(&priv->sleepstatus.wakeup_request, 0); trx_device_init(priv); hostif_init(priv); ks_wlan_net_start(netdev); ks7010_init_defaults(priv); } static int ks7010_sdio_probe(struct sdio_func *func, const struct sdio_device_id *device) { struct ks_wlan_private *priv = NULL; struct net_device *netdev = NULL; struct ks_sdio_card *card; int ret; card = kzalloc(sizeof(*card), GFP_KERNEL); if (!card) return -ENOMEM; card->func = func; sdio_claim_host(func); ret = sdio_set_block_size(func, KS7010_IO_BLOCK_SIZE); if (ret) goto err_free_card; dev_dbg(&card->func->dev, "multi_block=%d sdio_set_block_size()=%d %d\n", func->card->cccr.multi_block, func->cur_blksize, ret); ret = sdio_enable_func(func); if (ret) goto err_free_card; ret = ks7010_sdio_setup_irqs(func); if (ret) goto err_disable_func; sdio_release_host(func); sdio_set_drvdata(func, card); dev_dbg(&card->func->dev, "class = 0x%X, vendor = 0x%X, device = 0x%X\n", func->class, func->vendor, func->device); /* private memory allocate */ netdev = alloc_etherdev(sizeof(*priv)); if (!netdev) { dev_err(&card->func->dev, "Unable to alloc new net device\n"); goto err_release_irq; } ret = dev_alloc_name(netdev, "wlan%d"); if (ret < 0) { dev_err(&card->func->dev, "Couldn't get name!\n"); goto err_free_netdev; } priv = netdev_priv(netdev); card->priv = priv; SET_NETDEV_DEV(netdev, &card->func->dev); ks7010_private_init(priv, card, netdev); ret = ks7010_upload_firmware(card); if (ret) { netdev_err(priv->net_dev, "firmware load failed !! ret = %d\n", ret); goto err_free_netdev; } ks7010_sdio_init_irqs(func, priv); priv->dev_state = DEVICE_STATE_BOOT; priv->wq = alloc_workqueue("wq", WQ_MEM_RECLAIM, 1); if (!priv->wq) { netdev_err(priv->net_dev, "create_workqueue failed !!\n"); goto err_free_netdev; } INIT_DELAYED_WORK(&priv->rw_dwork, ks7010_rw_function); ks7010_card_init(priv); ret = register_netdev(priv->net_dev); if (ret) goto err_destroy_wq; return 0; err_destroy_wq: destroy_workqueue(priv->wq); err_free_netdev: free_netdev(netdev); err_release_irq: sdio_claim_host(func); sdio_release_irq(func); err_disable_func: sdio_disable_func(func); err_free_card: sdio_release_host(func); sdio_set_drvdata(func, NULL); kfree(card); return -ENODEV; } /* send stop request to MAC */ static int send_stop_request(struct sdio_func *func) { struct hostif_stop_request *pp; struct ks_sdio_card *card; size_t size; card = sdio_get_drvdata(func); pp = kzalloc(hif_align_size(sizeof(*pp)), GFP_KERNEL); if (!pp) return -ENOMEM; size = sizeof(*pp) - sizeof(pp->header.size); pp->header.size = cpu_to_le16(size); pp->header.event = cpu_to_le16(HIF_STOP_REQ); sdio_claim_host(func); write_to_device(card->priv, (u8 *)pp, hif_align_size(sizeof(*pp))); sdio_release_host(func); kfree(pp); return 0; } static void ks7010_sdio_remove(struct sdio_func *func) { int ret; struct ks_sdio_card *card; struct ks_wlan_private *priv; card = sdio_get_drvdata(func); if (!card) return; priv = card->priv; if (!priv) goto err_free_card; ks_wlan_net_stop(priv->net_dev); /* interrupt disable */ sdio_claim_host(func); sdio_writeb(func, 0, INT_ENABLE_REG, &ret); sdio_writeb(func, 0xff, INT_PENDING_REG, &ret); sdio_release_host(func); ret = send_stop_request(func); if (ret) /* memory allocation failure */ goto err_free_card; if (priv->wq) destroy_workqueue(priv->wq); hostif_exit(priv); unregister_netdev(priv->net_dev); trx_device_exit(priv); free_netdev(priv->net_dev); card->priv = NULL; sdio_claim_host(func); sdio_release_irq(func); sdio_disable_func(func); sdio_release_host(func); err_free_card: sdio_set_drvdata(func, NULL); kfree(card); } static const struct sdio_device_id ks7010_sdio_ids[] = { {SDIO_DEVICE(SDIO_VENDOR_ID_KS_CODE_A, SDIO_DEVICE_ID_KS_7010)}, {SDIO_DEVICE(SDIO_VENDOR_ID_KS_CODE_B, SDIO_DEVICE_ID_KS_7010)}, { /* all zero */ } }; MODULE_DEVICE_TABLE(sdio, ks7010_sdio_ids); static struct sdio_driver ks7010_sdio_driver = { .name = "ks7010_sdio", .id_table = ks7010_sdio_ids, .probe = ks7010_sdio_probe, .remove = ks7010_sdio_remove, }; module_driver(ks7010_sdio_driver, sdio_register_driver, sdio_unregister_driver); MODULE_AUTHOR("Sang Engineering, Qi-Hardware, KeyStream"); MODULE_DESCRIPTION("Driver for KeyStream KS7010 based SDIO cards"); MODULE_LICENSE("GPL v2"); MODULE_FIRMWARE(ROM_FILE); |