diff options
Diffstat (limited to 'drivers/staging/ks7010/ks7010_sdio.c')
| -rw-r--r-- | drivers/staging/ks7010/ks7010_sdio.c | 1236 |
1 files changed, 1236 insertions, 0 deletions
diff --git a/drivers/staging/ks7010/ks7010_sdio.c b/drivers/staging/ks7010/ks7010_sdio.c new file mode 100644 index 0000000..b7337fd --- /dev/null +++ b/drivers/staging/ks7010/ks7010_sdio.c @@ -0,0 +1,1236 @@ +/* + * 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 + * + * 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. + */ + +#include <linux/firmware.h> +#include <linux/mmc/card.h> +#include <linux/mmc/sdio_func.h> +#include <linux/workqueue.h> +#include <asm/atomic.h> + +#include "ks_wlan.h" +#include "ks_wlan_ioctl.h" +#include "ks_hostif.h" +#include "ks7010_sdio.h" + +#define KS7010_FUNC_NUM 1 +#define KS7010_IO_BLOCK_SIZE 512 +#define KS7010_MAX_CLOCK 25000000 + +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); + +/* macro */ + +#define inc_txqhead(priv) \ + ( priv->tx_dev.qhead = (priv->tx_dev.qhead + 1) % TX_DEVICE_BUFF_SIZE ) +#define inc_txqtail(priv) \ + ( priv->tx_dev.qtail = (priv->tx_dev.qtail + 1) % TX_DEVICE_BUFF_SIZE ) +#define cnt_txqbody(priv) \ + (((priv->tx_dev.qtail + TX_DEVICE_BUFF_SIZE) - (priv->tx_dev.qhead)) % TX_DEVICE_BUFF_SIZE ) + +#define inc_rxqhead(priv) \ + ( priv->rx_dev.qhead = (priv->rx_dev.qhead + 1) % RX_DEVICE_BUFF_SIZE ) +#define inc_rxqtail(priv) \ + ( priv->rx_dev.qtail = (priv->rx_dev.qtail + 1) % RX_DEVICE_BUFF_SIZE ) +#define cnt_rxqbody(priv) \ + (((priv->rx_dev.qtail + RX_DEVICE_BUFF_SIZE) - (priv->rx_dev.qhead)) % RX_DEVICE_BUFF_SIZE ) + +static int ks7010_sdio_read(struct ks_wlan_private *priv, unsigned int address, + unsigned char *buffer, int length) +{ + struct ks_sdio_card *card; + int rc; + + card = priv->ks_wlan_hw.sdio_card; + + if (length == 1) /* CMD52 */ + *buffer = sdio_readb(card->func, address, &rc); + else /* CMD53 multi-block transfer */ + rc = sdio_memcpy_fromio(card->func, buffer, address, length); + + if (rc != 0) + DPRINTK(1, "sdio error=%d size=%d\n", rc, length); + + return rc; +} + +static int ks7010_sdio_write(struct ks_wlan_private *priv, unsigned int address, + unsigned char *buffer, int length) +{ + struct ks_sdio_card *card; + int rc; + + card = priv->ks_wlan_hw.sdio_card; + + if (length == 1) /* CMD52 */ + sdio_writeb(card->func, *buffer, (unsigned int)address, &rc); + else /* CMD53 */ + rc = sdio_memcpy_toio(card->func, (unsigned int)address, buffer, + length); + + if (rc != 0) + DPRINTK(1, "sdio error=%d size=%d\n", rc, length); + + return rc; +} + +void ks_wlan_hw_sleep_doze_request(struct ks_wlan_private *priv) +{ + unsigned char rw_data; + int retval; + + DPRINTK(4, "\n"); + + /* clear request */ + atomic_set(&priv->sleepstatus.doze_request, 0); + + if (atomic_read(&priv->sleepstatus.status) == 0) { + rw_data = GCR_B_DOZE; + retval = + ks7010_sdio_write(priv, GCR_B, &rw_data, sizeof(rw_data)); + if (retval) { + DPRINTK(1, " error : GCR_B=%02X\n", rw_data); + goto out; + } + DPRINTK(4, "PMG SET!! : GCR_B=%02X\n", rw_data); + DPRINTK(3, "sleep_mode=SLP_SLEEP\n"); + atomic_set(&priv->sleepstatus.status, 1); + priv->last_doze = jiffies; + } else { + DPRINTK(1, "sleep_mode=%d\n", priv->sleep_mode); + } + + out: + priv->sleep_mode = atomic_read(&priv->sleepstatus.status); + return; +} + +void ks_wlan_hw_sleep_wakeup_request(struct ks_wlan_private *priv) +{ + unsigned char rw_data; + int retval; + + DPRINTK(4, "\n"); + + /* clear request */ + atomic_set(&priv->sleepstatus.wakeup_request, 0); + + if (atomic_read(&priv->sleepstatus.status) == 1) { + rw_data = WAKEUP_REQ; + retval = + ks7010_sdio_write(priv, WAKEUP, &rw_data, sizeof(rw_data)); + if (retval) { + DPRINTK(1, " error : WAKEUP=%02X\n", rw_data); + goto out; + } + DPRINTK(4, "wake up : WAKEUP=%02X\n", rw_data); + atomic_set(&priv->sleepstatus.status, 0); + priv->last_wakeup = jiffies; + ++priv->wakeup_count; + } else { + DPRINTK(1, "sleep_mode=%d\n", priv->sleep_mode); + } + + out: + priv->sleep_mode = atomic_read(&priv->sleepstatus.status); + return; +} + +void ks_wlan_hw_wakeup_request(struct ks_wlan_private *priv) +{ + unsigned char rw_data; + int retval; + + DPRINTK(4, "\n"); + if (atomic_read(&priv->psstatus.status) == PS_SNOOZE) { + rw_data = WAKEUP_REQ; + retval = + ks7010_sdio_write(priv, WAKEUP, &rw_data, sizeof(rw_data)); + if (retval) { + DPRINTK(1, " error : WAKEUP=%02X\n", rw_data); + } + DPRINTK(4, "wake up : WAKEUP=%02X\n", rw_data); + priv->last_wakeup = jiffies; + ++priv->wakeup_count; + } else { + DPRINTK(1, "psstatus=%d\n", + atomic_read(&priv->psstatus.status)); + } +} + +int _ks_wlan_hw_power_save(struct ks_wlan_private *priv) +{ + int rc = 0; + unsigned char rw_data; + int retval; + + if (priv->reg.powermgt == POWMGT_ACTIVE_MODE) + return rc; + + if (priv->reg.operation_mode == MODE_INFRASTRUCTURE && + (priv->connect_status & CONNECT_STATUS_MASK) == CONNECT_STATUS) { + + //DPRINTK(1,"psstatus.status=%d\n",atomic_read(&priv->psstatus.status)); + if (priv->dev_state == DEVICE_STATE_SLEEP) { + switch (atomic_read(&priv->psstatus.status)) { + case PS_SNOOZE: /* 4 */ + break; + default: + DPRINTK(5, "\npsstatus.status=%d\npsstatus.confirm_wait=%d\npsstatus.snooze_guard=%d\ncnt_txqbody=%d\n", + atomic_read(&priv->psstatus.status), + atomic_read(&priv->psstatus.confirm_wait), + atomic_read(&priv->psstatus.snooze_guard), + cnt_txqbody(priv)); + + if (!atomic_read(&priv->psstatus.confirm_wait) + && !atomic_read(&priv->psstatus.snooze_guard) + && !cnt_txqbody(priv)) { + retval = + ks7010_sdio_read(priv, INT_PENDING, + &rw_data, + sizeof(rw_data)); + if (retval) { + DPRINTK(1, + " error : INT_PENDING=%02X\n", + rw_data); + queue_delayed_work(priv->ks_wlan_hw.ks7010sdio_wq, + &priv->ks_wlan_hw.rw_wq, 1); + break; + } + if (!rw_data) { + rw_data = GCR_B_DOZE; + retval = + ks7010_sdio_write(priv, + GCR_B, + &rw_data, + sizeof(rw_data)); + if (retval) { + DPRINTK(1, + " error : GCR_B=%02X\n", + rw_data); + queue_delayed_work + (priv->ks_wlan_hw.ks7010sdio_wq, + &priv->ks_wlan_hw.rw_wq, 1); + break; + } + DPRINTK(4, + "PMG SET!! : GCR_B=%02X\n", + rw_data); + atomic_set(&priv->psstatus. + status, PS_SNOOZE); + DPRINTK(3, + "psstatus.status=PS_SNOOZE\n"); + } else { + queue_delayed_work(priv->ks_wlan_hw.ks7010sdio_wq, + &priv->ks_wlan_hw.rw_wq, 1); + } + } else { + queue_delayed_work(priv->ks_wlan_hw. + ks7010sdio_wq, + &priv->ks_wlan_hw.rw_wq, + 0); + } + break; + } + } + + } + + return rc; +} + +int ks_wlan_hw_power_save(struct ks_wlan_private *priv) +{ + queue_delayed_work(priv->ks_wlan_hw.ks7010sdio_wq, + &priv->ks_wlan_hw.rw_wq, 1); + return 0; +} + +static int enqueue_txdev(struct ks_wlan_private *priv, unsigned char *p, + unsigned long size, + void (*complete_handler) (void *arg1, void *arg2), + void *arg1, void *arg2) +{ + struct tx_device_buffer *sp; + + if (priv->dev_state < DEVICE_STATE_BOOT) { + kfree(p); + if (complete_handler != NULL) + (*complete_handler) (arg1, arg2); + return 1; + } + + if ((TX_DEVICE_BUFF_SIZE - 1) <= cnt_txqbody(priv)) { + /* in case of buffer overflow */ + DPRINTK(1, "tx buffer overflow\n"); + kfree(p); + if (complete_handler != NULL) + (*complete_handler) (arg1, arg2); + return 1; + } + + sp = &priv->tx_dev.tx_dev_buff[priv->tx_dev.qtail]; + sp->sendp = p; + sp->size = size; + sp->complete_handler = complete_handler; + sp->arg1 = arg1; + sp->arg2 = arg2; + inc_txqtail(priv); + + return 0; +} + +/* write data */ +static int write_to_device(struct ks_wlan_private *priv, unsigned char *buffer, + unsigned long size) +{ + int rc, retval; + unsigned char rw_data; + struct hostif_hdr *hdr; + hdr = (struct hostif_hdr *)buffer; + rc = 0; + + DPRINTK(4, "size=%d\n", hdr->size); + if (hdr->event < HIF_DATA_REQ || HIF_REQ_MAX < hdr->event) { + DPRINTK(1, "unknown event=%04X\n", hdr->event); + return 0; + } + + retval = ks7010_sdio_write(priv, DATA_WINDOW, buffer, size); + if (retval) { + DPRINTK(1, " write error : retval=%d\n", retval); + return -4; + } + + rw_data = WRITE_STATUS_BUSY; + retval = + ks7010_sdio_write(priv, WRITE_STATUS, &rw_data, sizeof(rw_data)); + if (retval) { + DPRINTK(1, " error : WRITE_STATUS=%02X\n", rw_data); + return -3; + } + + return 0; +} + +static void tx_device_task(void *dev) +{ + struct ks_wlan_private *priv = (struct ks_wlan_private *)dev; + struct tx_device_buffer *sp; + int rc = 0; + + DPRINTK(4, "\n"); + if (cnt_txqbody(priv) > 0 + && atomic_read(&priv->psstatus.status) != PS_SNOOZE) { + sp = &priv->tx_dev.tx_dev_buff[priv->tx_dev.qhead]; + if (priv->dev_state >= DEVICE_STATE_BOOT) { + rc = write_to_device(priv, sp->sendp, sp->size); + if (rc) { + DPRINTK(1, "write_to_device error !!(%d)\n", + rc); + queue_delayed_work(priv->ks_wlan_hw. + ks7010sdio_wq, + &priv->ks_wlan_hw.rw_wq, 1); + return; + } + + } + kfree(sp->sendp); /* allocated memory free */ + if (sp->complete_handler != NULL) /* TX Complete */ + (*sp->complete_handler) (sp->arg1, sp->arg2); + inc_txqhead(priv); + + if (cnt_txqbody(priv) > 0) { + queue_delayed_work(priv->ks_wlan_hw.ks7010sdio_wq, + &priv->ks_wlan_hw.rw_wq, 0); + } + } + return; +} + +int ks_wlan_hw_tx(struct ks_wlan_private *priv, void *p, unsigned long size, + void (*complete_handler) (void *arg1, void *arg2), + void *arg1, void *arg2) +{ + int result = 0; + struct hostif_hdr *hdr; + hdr = (struct hostif_hdr *)p; + + if (hdr->event < HIF_DATA_REQ || HIF_REQ_MAX < hdr->event) { + DPRINTK(1, "unknown event=%04X\n", hdr->event); + return 0; + } + + /* add event to hostt buffer */ + priv->hostt.buff[priv->hostt.qtail] = hdr->event; + priv->hostt.qtail = (priv->hostt.qtail + 1) % SME_EVENT_BUFF_SIZE; + + DPRINTK(4, "event=%04X\n", hdr->event); + spin_lock(&priv->tx_dev.tx_dev_lock); + result = enqueue_txdev(priv, p, size, complete_handler, arg1, arg2); + spin_unlock(&priv->tx_dev.tx_dev_lock); + + if (cnt_txqbody(priv) > 0) { + queue_delayed_work(priv->ks_wlan_hw.ks7010sdio_wq, + &priv->ks_wlan_hw.rw_wq, 0); + } + return result; +} + +static void rx_event_task(unsigned long dev) +{ + struct ks_wlan_private *priv = (struct ks_wlan_private *)dev; + struct rx_device_buffer *rp; + + DPRINTK(4, "\n"); + + if (cnt_rxqbody(priv) > 0 && 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 (cnt_rxqbody(priv) > 0) { + tasklet_schedule(&priv->ks_wlan_hw.rx_bh_task); + } + } + + return; +} + +static void ks_wlan_hw_rx(void *dev, uint16_t size) +{ + struct ks_wlan_private *priv = (struct ks_wlan_private *)dev; + int retval; + struct rx_device_buffer *rx_buffer; + struct hostif_hdr *hdr; + unsigned char read_status; + unsigned short event = 0; + + DPRINTK(4, "\n"); + + /* receive data */ + if (cnt_rxqbody(priv) >= (RX_DEVICE_BUFF_SIZE - 1)) { + /* in case of buffer overflow */ + DPRINTK(1, "rx buffer overflow \n"); + goto error_out; + } + rx_buffer = &priv->rx_dev.rx_dev_buff[priv->rx_dev.qtail]; + + retval = + ks7010_sdio_read(priv, DATA_WINDOW, &rx_buffer->data[0], + hif_align_size(size)); + if (retval) { + goto error_out; + } + + /* length check */ + if (size > 2046 || size == 0) { +#ifdef KS_WLAN_DEBUG + if (KS_WLAN_DEBUG > 5) + print_hex_dump_bytes("INVALID DATA dump: ", + DUMP_PREFIX_OFFSET, + rx_buffer->data, 32); +#endif + /* rx_status update */ + read_status = READ_STATUS_IDLE; + retval = + ks7010_sdio_write(priv, READ_STATUS, &read_status, + sizeof(read_status)); + if (retval) { + DPRINTK(1, " error : READ_STATUS=%02X\n", read_status); + } + goto error_out; + } + + hdr = (struct hostif_hdr *)&rx_buffer->data[0]; + rx_buffer->size = le16_to_cpu(hdr->size) + sizeof(hdr->size); + event = hdr->event; + inc_rxqtail(priv); + + /* read status update */ + read_status = READ_STATUS_IDLE; + retval = + ks7010_sdio_write(priv, READ_STATUS, &read_status, + sizeof(read_status)); + if (retval) { + DPRINTK(1, " error : READ_STATUS=%02X\n", read_status); + } + DPRINTK(4, "READ_STATUS=%02X\n", read_status); + + if (atomic_read(&priv->psstatus.confirm_wait)) { + if (IS_HIF_CONF(event)) { + DPRINTK(4, "IS_HIF_CONF true !!\n"); + atomic_dec(&priv->psstatus.confirm_wait); + } + } + + /* rx_event_task((void *)priv); */ + tasklet_schedule(&priv->ks_wlan_hw.rx_bh_task); + + error_out: + return; +} + +static void ks7010_rw_function(struct work_struct *work) +{ + struct hw_info_t *hw; + struct ks_wlan_private *priv; + unsigned char rw_data; + int retval; + + hw = container_of(work, struct hw_info_t, rw_wq.work); + priv = container_of(hw, struct ks_wlan_private, ks_wlan_hw); + + DPRINTK(4, "\n"); + + /* wiat after DOZE */ + if (time_after(priv->last_doze + ((30 * HZ) / 1000), jiffies)) { + DPRINTK(4, "wait after DOZE \n"); + queue_delayed_work(priv->ks_wlan_hw.ks7010sdio_wq, + &priv->ks_wlan_hw.rw_wq, 1); + return; + } + + /* wiat after WAKEUP */ + while (time_after(priv->last_wakeup + ((30 * HZ) / 1000), jiffies)) { + DPRINTK(4, "wait after WAKEUP \n"); +/* queue_delayed_work(priv->ks_wlan_hw.ks7010sdio_wq,&priv->ks_wlan_hw.rw_wq, + (priv->last_wakeup + ((30*HZ)/1000) - jiffies));*/ + printk("wake: %lu %lu\n", priv->last_wakeup + (30 * HZ) / 1000, + jiffies); + msleep(30); + } + + sdio_claim_host(priv->ks_wlan_hw.sdio_card->func); + + /* power save wakeup */ + if (atomic_read(&priv->psstatus.status) == PS_SNOOZE) { + if (cnt_txqbody(priv) > 0) { + ks_wlan_hw_wakeup_request(priv); + queue_delayed_work(priv->ks_wlan_hw.ks7010sdio_wq, + &priv->ks_wlan_hw.rw_wq, 1); + } + goto err_out; + } + + /* sleep mode doze */ + if (atomic_read(&priv->sleepstatus.doze_request) == 1) { + ks_wlan_hw_sleep_doze_request(priv); + goto err_out; + } + /* sleep mode wakeup */ + if (atomic_read(&priv->sleepstatus.wakeup_request) == 1) { + ks_wlan_hw_sleep_wakeup_request(priv); + goto err_out; + } + + /* read (WriteStatus/ReadDataSize FN1:00_0014) */ + retval = + ks7010_sdio_read(priv, WSTATUS_RSIZE, &rw_data, sizeof(rw_data)); + if (retval) { + DPRINTK(1, " error : WSTATUS_RSIZE=%02X psstatus=%d\n", rw_data, + atomic_read(&priv->psstatus.status)); + goto err_out; + } + DPRINTK(4, "WSTATUS_RSIZE=%02X\n", rw_data); + + if (rw_data & RSIZE_MASK) { /* Read schedule */ + ks_wlan_hw_rx((void *)priv, + (uint16_t) (((rw_data & RSIZE_MASK) << 4))); + } + if ((rw_data & WSTATUS_MASK)) { + tx_device_task((void *)priv); + } + _ks_wlan_hw_power_save(priv); + + err_out: + sdio_release_host(priv->ks_wlan_hw.sdio_card->func); + + return; +} + +static void ks_sdio_interrupt(struct sdio_func *func) +{ + int retval; + struct ks_sdio_card *card; + struct ks_wlan_private *priv; + unsigned char status, rsize, rw_data; + + card = sdio_get_drvdata(func); + priv = card->priv; + DPRINTK(4, "\n"); + + if (priv->dev_state >= DEVICE_STATE_BOOT) { + retval = + ks7010_sdio_read(priv, INT_PENDING, &status, + sizeof(status)); + if (retval) { + DPRINTK(1, "read INT_PENDING Failed!!(%d)\n", retval); + goto intr_out; + } + DPRINTK(4, "INT_PENDING=%02X\n", rw_data); + + /* 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) { + retval = + ks7010_sdio_read(priv, GCR_B, &rw_data, + sizeof(rw_data)); + if (retval) { + DPRINTK(1, " error : GCR_B=%02X\n", rw_data); + goto intr_out; + } + /* DPRINTK(1, "GCR_B=%02X\n", rw_data); */ + if (rw_data == 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) */ + retval = + ks7010_sdio_read(priv, WSTATUS_RSIZE, &rw_data, + sizeof(rw_data)); + if (retval) { + DPRINTK(1, " error : WSTATUS_RSIZE=%02X\n", + rw_data); + goto intr_out; + } + DPRINTK(4, "WSTATUS_RSIZE=%02X\n", rw_data); + rsize = rw_data & RSIZE_MASK; + if (rsize) { /* Read schedule */ + ks_wlan_hw_rx((void *)priv, + (uint16_t) (((rsize) << 4))); + } + if (rw_data & WSTATUS_MASK) { +#if 0 + if (status & INT_WRITE_STATUS + && !cnt_txqbody(priv)) { + /* dummy write for interrupt clear */ + rw_data = 0; + retval = + ks7010_sdio_write(priv, DATA_WINDOW, + &rw_data, + sizeof(rw_data)); + if (retval) { + DPRINTK(1, + "write DATA_WINDOW Failed!!(%d)\n", + retval); + } + status &= ~INT_WRITE_STATUS; + } else { +#endif + if (atomic_read(&priv->psstatus.status) == PS_SNOOZE) { + if (cnt_txqbody(priv)) { + ks_wlan_hw_wakeup_request(priv); + queue_delayed_work + (priv->ks_wlan_hw. + ks7010sdio_wq, + &priv->ks_wlan_hw. + rw_wq, 1); + return; + } + } else { + tx_device_task((void *)priv); + } +#if 0 + } +#endif + } + } while (rsize); + } + + intr_out: + queue_delayed_work(priv->ks_wlan_hw.ks7010sdio_wq, + &priv->ks_wlan_hw.rw_wq, 0); + return; +} + +static int trx_device_init(struct ks_wlan_private *priv) +{ + /* initialize values (tx) */ + priv->tx_dev.qtail = priv->tx_dev.qhead = 0; + + /* initialize values (rx) */ + priv->rx_dev.qtail = priv->rx_dev.qhead = 0; + + /* initialize spinLock (tx,rx) */ + spin_lock_init(&priv->tx_dev.tx_dev_lock); + spin_lock_init(&priv->rx_dev.rx_dev_lock); + + tasklet_init(&priv->ks_wlan_hw.rx_bh_task, rx_event_task, + (unsigned long)priv); + + return 0; +} + +static void trx_device_exit(struct ks_wlan_private *priv) +{ + struct tx_device_buffer *sp; + + /* tx buffer clear */ + while (cnt_txqbody(priv) > 0) { + sp = &priv->tx_dev.tx_dev_buff[priv->tx_dev.qhead]; + kfree(sp->sendp); /* allocated memory free */ + if (sp->complete_handler != NULL) /* TX Complete */ + (*sp->complete_handler) (sp->arg1, sp->arg2); + inc_txqhead(priv); + } + + tasklet_kill(&priv->ks_wlan_hw.rx_bh_task); + + return; +} + +static int ks7010_sdio_update_index(struct ks_wlan_private *priv, u32 index) +{ + int rc = 0; + int retval; + unsigned char *data_buf; + data_buf = NULL; + + data_buf = kmalloc(sizeof(u32), GFP_KERNEL); + if (!data_buf) { + rc = 1; + goto error_out; + } + + memcpy(data_buf, &index, sizeof(index)); + retval = ks7010_sdio_write(priv, WRITE_INDEX, data_buf, sizeof(index)); + if (retval) { + rc = 2; + goto error_out; + } + + retval = ks7010_sdio_write(priv, READ_INDEX, data_buf, sizeof(index)); + if (retval) { + rc = 3; + goto error_out; + } + error_out: + if (data_buf) + kfree(data_buf); + return rc; +} + +#define ROM_BUFF_SIZE (64*1024) +static int ks7010_sdio_data_compare(struct ks_wlan_private *priv, u32 address, + unsigned char *data, unsigned int size) +{ + int rc = 0; + int retval; + unsigned char *read_buf; + read_buf = NULL; + read_buf = kmalloc(ROM_BUFF_SIZE, GFP_KERNEL); + if (!read_buf) { + rc = 1; + goto error_out; + } + retval = ks7010_sdio_read(priv, address, read_buf, size); + if (retval) { + rc = 2; + goto error_out; + } + retval = memcmp(data, read_buf, size); + + if (retval) { + DPRINTK(0, "data compare error (%d) \n", retval); + rc = 3; + goto error_out; + } + error_out: + if (read_buf) + kfree(read_buf); + return rc; +} + +static int ks7010_upload_firmware(struct ks_wlan_private *priv, + struct ks_sdio_card *card) +{ + unsigned int size, offset, n = 0; + unsigned char *rom_buf; + unsigned char rw_data = 0; + int retval, rc = 0; + int length; + const struct firmware *fw_entry = NULL; + + rom_buf = NULL; + + /* buffer allocate */ + rom_buf = kmalloc(ROM_BUFF_SIZE, GFP_KERNEL); + if (!rom_buf) { + rc = 3; + goto error_out0; + } + + sdio_claim_host(card->func); + + /* Firmware running ? */ + retval = ks7010_sdio_read(priv, GCR_A, &rw_data, sizeof(rw_data)); + if (rw_data == GCR_A_RUN) { + DPRINTK(0, "MAC firmware running ...\n"); + rc = 0; + goto error_out0; + } + + retval = request_firmware(&fw_entry, ROM_FILE, &priv->ks_wlan_hw.sdio_card->func->dev); + if (retval) + return retval; + + length = fw_entry->size; + + /* Load Program */ + n = 0; + do { + if (length >= ROM_BUFF_SIZE) { + size = ROM_BUFF_SIZE; + length = length - ROM_BUFF_SIZE; + } else { + size = length; + length = 0; + } + DPRINTK(4, "size = %d\n", size); + if (size == 0) + break; + memcpy(rom_buf, fw_entry->data + n, size); + /* Update write index */ + offset = n; + retval = + ks7010_sdio_update_index(priv, + KS7010_IRAM_ADDRESS + offset); + if (retval) { + rc = 6; + goto error_out1; + } + + /* Write data */ + retval = ks7010_sdio_write(priv, DATA_WINDOW, rom_buf, size); + if (retval) { + rc = 8; + goto error_out1; + } + + /* compare */ + retval = + ks7010_sdio_data_compare(priv, DATA_WINDOW, rom_buf, size); + if (retval) { + rc = 9; + goto error_out1; + } + n += size; + + } while (size); + + /* Remap request */ + rw_data = GCR_A_REMAP; + retval = ks7010_sdio_write(priv, GCR_A, &rw_data, sizeof(rw_data)); + if (retval) { + rc = 11; + goto error_out1; + } + DPRINTK(4, " REMAP Request : GCR_A=%02X\n", rw_data); + + /* Firmware running check */ + for (n = 0; n < 50; ++n) { + mdelay(10); /* wait_ms(10); */ + retval = + ks7010_sdio_read(priv, GCR_A, &rw_data, sizeof(rw_data)); + if (retval) { + rc = 11; + goto error_out1; + } + if (rw_data == GCR_A_RUN) + break; + } + DPRINTK(4, "firmware wakeup (%d)!!!!\n", n); + if ((50) <= n) { + DPRINTK(1, "firmware can't start\n"); + rc = 12; + goto error_out1; + } + + rc = 0; + + error_out1: + release_firmware(fw_entry); + error_out0: + sdio_release_host(card->func); + if (rom_buf) + kfree(rom_buf); + return rc; +} + +static void ks7010_card_init(struct ks_wlan_private *priv) +{ + DPRINTK(5, "\ncard_init_task()\n"); + + /* init_waitqueue_head(&priv->confirm_wait); */ + init_completion(&priv->confirm_wait); + + DPRINTK(5, "init_completion()\n"); + + /* get mac address & firmware version */ + hostif_sme_enqueue(priv, SME_START); + + DPRINTK(5, "hostif_sme_enqueu()\n"); + + if (!wait_for_completion_interruptible_timeout + (&priv->confirm_wait, 5 * HZ)) { + DPRINTK(1, "wait time out!! SME_START\n"); + } + + if (priv->mac_address_valid && priv->version_size) { + priv->dev_state = DEVICE_STATE_PREINIT; + } + + hostif_sme_enqueue(priv, SME_GET_EEPROM_CKSUM); + + /* load initial wireless parameter */ + hostif_sme_enqueue(priv, SME_STOP_REQUEST); + + hostif_sme_enqueue(priv, SME_RTS_THRESHOLD_REQUEST); + hostif_sme_enqueue(priv, SME_FRAGMENTATION_THRESHOLD_REQUEST); + + hostif_sme_enqueue(priv, SME_WEP_INDEX_REQUEST); + hostif_sme_enqueue(priv, SME_WEP_KEY1_REQUEST); + hostif_sme_enqueue(priv, SME_WEP_KEY2_REQUEST); + hostif_sme_enqueue(priv, SME_WEP_KEY3_REQUEST); + hostif_sme_enqueue(priv, SME_WEP_KEY4_REQUEST); + + hostif_sme_enqueue(priv, SME_WEP_FLAG_REQUEST); + hostif_sme_enqueue(priv, SME_RSN_ENABLED_REQUEST); + hostif_sme_enqueue(priv, SME_MODE_SET_REQUEST); + hostif_sme_enqueue(priv, SME_START_REQUEST); + + if (!wait_for_completion_interruptible_timeout + (&priv->confirm_wait, 5 * HZ)) { + DPRINTK(1, "wait time out!! wireless parameter set\n"); + } + + if (priv->dev_state >= DEVICE_STATE_PREINIT) { + DPRINTK(1, "DEVICE READY!!\n"); + priv->dev_state = DEVICE_STATE_READY; + } else { + DPRINTK(1, "dev_state=%d\n", priv->dev_state); + } +} + +static void ks7010_init_defaults(struct ks_wlan_private *priv) +{ + priv->reg.tx_rate = TX_RATE_AUTO; + priv->reg.preamble = LONG_PREAMBLE; + priv->reg.powermgt = POWMGT_ACTIVE_MODE; + 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_probe(struct sdio_func *func, + const struct sdio_device_id *device) +{ + struct ks_wlan_private *priv; + struct ks_sdio_card *card; + struct net_device *netdev; + unsigned char rw_data; + int ret; + + DPRINTK(5, "ks7010_sdio_probe()\n"); + + priv = NULL; + netdev = NULL; + + /* initilize ks_sdio_card */ + card = kzalloc(sizeof(struct ks_sdio_card), GFP_KERNEL); + if (!card) + return -ENOMEM; + + card->func = func; + spin_lock_init(&card->lock); + + /*** Initialize SDIO ***/ + sdio_claim_host(func); + + /* bus setting */ + /* Issue config request to override clock rate */ + + /* function blocksize set */ + ret = sdio_set_block_size(func, KS7010_IO_BLOCK_SIZE); + DPRINTK(5, "multi_block=%d sdio_set_block_size()=%d %d\n", + func->card->cccr.multi_block, func->cur_blksize, ret); + + /* Allocate the slot current */ + + /* function enable */ + ret = sdio_enable_func(func); + DPRINTK(5, "sdio_enable_func() %d\n", ret); + if (ret) + goto error_free_card; + + /* interrupt disable */ + sdio_writeb(func, 0, INT_ENABLE, &ret); + if (ret) + goto error_free_card; + sdio_writeb(func, 0xff, INT_PENDING, &ret); + if (ret) + goto error_disable_func; + + /* setup interrupt handler */ + ret = sdio_claim_irq(func, ks_sdio_interrupt); + if (ret) + goto error_disable_func; + + sdio_release_host(func); + + sdio_set_drvdata(func, card); + + DPRINTK(5, "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 == NULL) { + printk(KERN_ERR "ks7010 : Unable to alloc new net device\n"); + goto error_release_irq; + } + if (dev_alloc_name(netdev, "wlan%d") < 0) { + printk(KERN_ERR "ks7010 : Couldn't get name!\n"); + goto error_free_netdev; + } + + priv = netdev_priv(netdev); + + card->priv = priv; + SET_NETDEV_DEV(netdev, &card->func->dev); /* for create sysfs symlinks */ + + /* private memory initialize */ + priv->ks_wlan_hw.sdio_card = card; + init_completion(&priv->ks_wlan_hw.ks7010_sdio_wait); + priv->ks_wlan_hw.read_buf = NULL; + priv->ks_wlan_hw.read_buf = kmalloc(RX_DATA_SIZE, GFP_KERNEL); + if (!priv->ks_wlan_hw.read_buf) { + goto error_free_netdev; + } + priv->dev_state = DEVICE_STATE_PREBOOT; + priv->net_dev = netdev; + priv->firmware_version[0] = '\0'; + priv->version_size = 0; + priv->last_doze = jiffies; /* set current 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.doze_request, 0); + atomic_set(&priv->sleepstatus.wakeup_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); + + /* Upload firmware */ + ret = ks7010_upload_firmware(priv, card); /* firmware load */ + if (ret) { + printk(KERN_ERR + "ks7010: firmware load failed !! retern code = %d\n", + ret); + goto error_free_read_buf; + } + + /* interrupt setting */ + /* clear Interrupt status write (ARMtoSD_InterruptPending FN1:00_0024) */ + rw_data = 0xff; + sdio_claim_host(func); + ret = ks7010_sdio_write(priv, INT_PENDING, &rw_data, sizeof(rw_data)); + sdio_release_host(func); + if (ret) { + DPRINTK(1, " error : INT_PENDING=%02X\n", rw_data); + } + DPRINTK(4, " clear Interrupt : INT_PENDING=%02X\n", rw_data); + + /* enable ks7010sdio interrupt (INT_GCR_B|INT_READ_STATUS|INT_WRITE_STATUS) */ + rw_data = (INT_GCR_B | INT_READ_STATUS | INT_WRITE_STATUS); + sdio_claim_host(func); + ret = ks7010_sdio_write(priv, INT_ENABLE, &rw_data, sizeof(rw_data)); + sdio_release_host(func); + if (ret) { + DPRINTK(1, " error : INT_ENABLE=%02X\n", rw_data); + } + DPRINTK(4, " enable Interrupt : INT_ENABLE=%02X\n", rw_data); + priv->dev_state = DEVICE_STATE_BOOT; + + priv->ks_wlan_hw.ks7010sdio_wq = create_workqueue("ks7010sdio_wq"); + if (!priv->ks_wlan_hw.ks7010sdio_wq) { + DPRINTK(1, "create_workqueue failed !!\n"); + goto error_free_read_buf; + } + + INIT_DELAYED_WORK(&priv->ks_wlan_hw.rw_wq, ks7010_rw_function); + ks7010_card_init(priv); + + ret = register_netdev(priv->net_dev); + if (ret) + goto error_free_read_buf; + + return 0; + + error_free_read_buf: + kfree(priv->ks_wlan_hw.read_buf); + priv->ks_wlan_hw.read_buf = NULL; + error_free_netdev: + free_netdev(priv->net_dev); + card->priv = NULL; + error_release_irq: + sdio_claim_host(func); + sdio_release_irq(func); + error_disable_func: + sdio_disable_func(func); + error_free_card: + sdio_release_host(func); + sdio_set_drvdata(func, NULL); + kfree(card); + + return -ENODEV; +} + +static void ks7010_sdio_remove(struct sdio_func *func) +{ + int ret; + struct ks_sdio_card *card; + struct ks_wlan_private *priv; + struct net_device *netdev; + DPRINTK(1, "ks7010_sdio_remove()\n"); + + card = sdio_get_drvdata(func); + + if (card == NULL) + return; + + DPRINTK(1, "priv = card->priv\n"); + priv = card->priv; + netdev = priv->net_dev; + if (priv) { + ks_wlan_net_stop(netdev); + DPRINTK(1, "ks_wlan_net_stop\n"); + + /* interrupt disable */ + sdio_claim_host(func); + sdio_writeb(func, 0, INT_ENABLE, &ret); + sdio_writeb(func, 0xff, INT_PENDING, &ret); + sdio_release_host(func); + DPRINTK(1, "interrupt disable\n"); + + /* send stop request to MAC */ + { + struct hostif_stop_request_t *pp; + pp = (struct hostif_stop_request_t *) + kzalloc(hif_align_size(sizeof(*pp)), GFP_KERNEL); + if (pp == NULL) { + DPRINTK(3, "allocate memory failed..\n"); + return; /* to do goto ni suru */ + } + pp->header.size = + cpu_to_le16((uint16_t) + (sizeof(*pp) - + sizeof(pp->header.size))); + pp->header.event = cpu_to_le16((uint16_t) HIF_STOP_REQ); + + sdio_claim_host(func); + write_to_device(priv, (unsigned char *)pp, + hif_align_size(sizeof(*pp))); + sdio_release_host(func); + kfree(pp); + } + DPRINTK(1, "STOP Req\n"); + + if (priv->ks_wlan_hw.ks7010sdio_wq) { + flush_workqueue(priv->ks_wlan_hw.ks7010sdio_wq); + destroy_workqueue(priv->ks_wlan_hw.ks7010sdio_wq); + } + DPRINTK(1, + "destroy_workqueue(priv->ks_wlan_hw.ks7010sdio_wq);\n"); + + hostif_exit(priv); + DPRINTK(1, "hostif_exit\n"); + + unregister_netdev(netdev); + + trx_device_exit(priv); + if (priv->ks_wlan_hw.read_buf) { + kfree(priv->ks_wlan_hw.read_buf); + } + free_netdev(priv->net_dev); + card->priv = NULL; + } + + sdio_claim_host(func); + sdio_release_irq(func); + DPRINTK(1, "sdio_release_irq()\n"); + sdio_disable_func(func); + DPRINTK(1, "sdio_disable_func()\n"); + sdio_release_host(func); + + sdio_set_drvdata(func, NULL); + + kfree(card); + DPRINTK(1, "kfree()\n"); + + DPRINTK(5, " Bye !!\n"); + return; +} + +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); |
