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* 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 <linux/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);
#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)
/* Read single byte from device address into byte (CMD52) */
static int ks7010_sdio_readb(struct ks_wlan_private *priv, unsigned int address,
unsigned char *byte)
{
struct sdio_func *func = priv->ks_sdio_card->func;
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, unsigned int address,
unsigned char *buffer, int length)
{
struct sdio_func *func = priv->ks_sdio_card->func;
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,
unsigned int address, unsigned char byte)
{
struct sdio_func *func = priv->ks_sdio_card->func;
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, unsigned int address,
unsigned char *buffer, int length)
{
struct sdio_func *func = priv->ks_sdio_card->func;
return sdio_memcpy_toio(func, address, buffer, length);
}
static void ks_wlan_hw_sleep_doze_request(struct ks_wlan_private *priv)
{
int ret;
DPRINTK(4, "\n");
/* clear request */
atomic_set(&priv->sleepstatus.doze_request, 0);
if (atomic_read(&priv->sleepstatus.status) == 0) {
ret = ks7010_sdio_writeb(priv, GCR_B, GCR_B_DOZE);
if (ret) {
DPRINTK(1, " error : GCR_B\n");
goto set_sleep_mode;
}
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);
}
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;
DPRINTK(4, "\n");
/* clear request */
atomic_set(&priv->sleepstatus.wakeup_request, 0);
if (atomic_read(&priv->sleepstatus.status) == 1) {
ret = ks7010_sdio_writeb(priv, WAKEUP, WAKEUP_REQ);
if (ret) {
DPRINTK(1, " error : WAKEUP\n");
goto set_sleep_mode;
}
DPRINTK(4, "wake up : WAKEUP\n");
atomic_set(&priv->sleepstatus.status, 0);
priv->last_wakeup = jiffies;
++priv->wakeup_count;
} else {
DPRINTK(1, "sleep_mode=%d\n", priv->sleep_mode);
}
set_sleep_mode:
priv->sleep_mode = atomic_read(&priv->sleepstatus.status);
}
void ks_wlan_hw_wakeup_request(struct ks_wlan_private *priv)
{
int ret;
DPRINTK(4, "\n");
if (atomic_read(&priv->psstatus.status) == PS_SNOOZE) {
ret = ks7010_sdio_writeb(priv, WAKEUP, WAKEUP_REQ);
if (ret)
DPRINTK(1, " error : WAKEUP\n");
else
DPRINTK(4, "wake up : WAKEUP\n");
priv->last_wakeup = jiffies;
++priv->wakeup_count;
} else {
DPRINTK(1, "psstatus=%d\n",
atomic_read(&priv->psstatus.status));
}
}
static void _ks_wlan_hw_power_save(struct ks_wlan_private *priv)
{
unsigned char 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;
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)) {
queue_delayed_work(priv->wq, &priv->rw_dwork, 0);
return;
}
ret = ks7010_sdio_readb(priv, INT_PENDING, &byte);
if (ret) {
DPRINTK(1, " error : INT_PENDING\n");
goto queue_delayed_work;
}
if (byte)
goto queue_delayed_work;
ret = ks7010_sdio_writeb(priv, GCR_B, GCR_B_DOZE);
if (ret) {
DPRINTK(1, " error : GCR_B\n");
goto queue_delayed_work;
}
atomic_set(&priv->psstatus.status, PS_SNOOZE);
DPRINTK(3, "psstatus.status=PS_SNOOZE\n");
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) <= cnt_txqbody(priv)) {
DPRINTK(1, "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, unsigned char *buffer,
unsigned long size)
{
struct hostif_hdr *hdr;
int ret;
hdr = (struct hostif_hdr *)buffer;
DPRINTK(4, "size=%d\n", hdr->size);
if (le16_to_cpu(hdr->event) < HIF_DATA_REQ ||
le16_to_cpu(hdr->event) > HIF_REQ_MAX) {
DPRINTK(1, "unknown event=%04X\n", hdr->event);
return 0;
}
ret = ks7010_sdio_write(priv, DATA_WINDOW, buffer, size);
if (ret) {
DPRINTK(1, " write error : retval=%d\n", ret);
return ret;
}
ret = ks7010_sdio_writeb(priv, WRITE_STATUS, REG_STATUS_BUSY);
if (ret) {
DPRINTK(1, " error : WRITE_STATUS\n");
return ret;
}
return 0;
}
static void tx_device_task(struct ks_wlan_private *priv)
{
struct tx_device_buffer *sp;
int ret;
DPRINTK(4, "\n");
if (cnt_txqbody(priv) <= 0 ||
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) {
DPRINTK(1, "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 (cnt_txqbody(priv) > 0)
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 = 0;
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) {
DPRINTK(1, "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;
DPRINTK(4, "event=%04X\n", hdr->event);
spin_lock(&priv->tx_dev.tx_dev_lock);
result = enqueue_txdev(priv, p, size, complete_handler, skb);
spin_unlock(&priv->tx_dev.tx_dev_lock);
if (cnt_txqbody(priv) > 0)
queue_delayed_work(priv->wq, &priv->rw_dwork, 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->rx_bh_task);
}
}
static void ks_wlan_hw_rx(struct ks_wlan_private *priv, uint16_t size)
{
int ret;
struct rx_device_buffer *rx_buffer;
struct hostif_hdr *hdr;
unsigned short event = 0;
DPRINTK(4, "\n");
/* receive data */
if (cnt_rxqbody(priv) >= (RX_DEVICE_BUFF_SIZE - 1)) {
DPRINTK(1, "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 KS_WLAN_DEBUG
if (KS_WLAN_DEBUG > 5)
print_hex_dump_bytes("INVALID DATA dump: ",
DUMP_PREFIX_OFFSET,
rx_buffer->data, 32);
#endif
ret = ks7010_sdio_writeb(priv, READ_STATUS, REG_STATUS_IDLE);
if (ret)
DPRINTK(1, " error : READ_STATUS\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_STATUS_IDLE);
if (ret)
DPRINTK(1, " error : READ_STATUS\n");
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);
}
}
tasklet_schedule(&priv->rx_bh_task);
}
static void ks7010_rw_function(struct work_struct *work)
{
struct ks_wlan_private *priv;
unsigned char byte;
int ret;
priv = container_of(work, struct ks_wlan_private, rw_dwork.work);
DPRINTK(4, "\n");
/* wait after DOZE */
if (time_after(priv->last_doze + ((30 * HZ) / 1000), jiffies)) {
DPRINTK(4, "wait after DOZE\n");
queue_delayed_work(priv->wq, &priv->rw_dwork, 1);
return;
}
/* wait after WAKEUP */
while (time_after(priv->last_wakeup + ((30 * HZ) / 1000), jiffies)) {
DPRINTK(4, "wait after WAKEUP\n");
dev_info(&priv->ks_sdio_card->func->dev,
"wake: %lu %lu\n",
priv->last_wakeup + (30 * HZ) / 1000,
jiffies);
msleep(30);
}
sdio_claim_host(priv->ks_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->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, &byte);
if (ret) {
DPRINTK(1, " error : WSTATUS_RSIZE psstatus=%d\n",
atomic_read(&priv->psstatus.status));
goto release_host;
}
DPRINTK(4, "WSTATUS_RSIZE=%02X\n", byte);
if (byte & RSIZE_MASK) { /* Read schedule */
ks_wlan_hw_rx(priv, (uint16_t)((byte & RSIZE_MASK) << 4));
}
if ((byte & WSTATUS_MASK))
tx_device_task(priv);
_ks_wlan_hw_power_save(priv);
release_host:
sdio_release_host(priv->ks_sdio_card->func);
}
static void ks_sdio_interrupt(struct sdio_func *func)
{
int ret;
struct ks_sdio_card *card;
struct ks_wlan_private *priv;
unsigned char status, rsize, byte;
card = sdio_get_drvdata(func);
priv = card->priv;
DPRINTK(4, "\n");
if (priv->dev_state < DEVICE_STATE_BOOT)
goto queue_delayed_work;
ret = ks7010_sdio_readb(priv, INT_PENDING, &status);
if (ret) {
DPRINTK(1, "error : INT_PENDING\n");
goto queue_delayed_work;
}
DPRINTK(4, "INT_PENDING=%02X\n", status);
/* 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, &byte);
if (ret) {
DPRINTK(1, " error : GCR_B\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, &byte);
if (ret) {
DPRINTK(1, " error : WSTATUS_RSIZE\n");
goto queue_delayed_work;
}
DPRINTK(4, "WSTATUS_RSIZE=%02X\n", byte);
rsize = byte & RSIZE_MASK;
if (rsize != 0) /* Read schedule */
ks_wlan_hw_rx(priv, (uint16_t)(rsize << 4));
if (byte & WSTATUS_MASK) {
if (atomic_read(&priv->psstatus.status) == PS_SNOOZE) {
if (cnt_txqbody(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_init(&priv->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);
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 = kmalloc(sizeof(u32), GFP_KERNEL);
if (!data_buf)
return -ENOMEM;
memcpy(data_buf, &index, sizeof(index));
ret = ks7010_sdio_write(priv, WRITE_INDEX, data_buf, sizeof(index));
if (ret)
goto err_free_data_buf;
ret = ks7010_sdio_write(priv, READ_INDEX, 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,
unsigned char *data, unsigned int size)
{
int ret;
unsigned char *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;
DPRINTK(0, "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_upload_firmware(struct ks_sdio_card *card)
{
struct ks_wlan_private *priv = card->priv;
unsigned int size, offset, n = 0;
unsigned char *rom_buf;
unsigned char byte = 0;
int ret;
unsigned int length;
const struct firmware *fw_entry = NULL;
rom_buf = kmalloc(ROM_BUFF_SIZE, GFP_KERNEL);
if (!rom_buf)
return -ENOMEM;
sdio_claim_host(card->func);
/* Firmware running ? */
ret = ks7010_sdio_readb(priv, GCR_A, &byte);
if (byte == GCR_A_RUN) {
DPRINTK(0, "MAC firmware running ...\n");
goto release_host_and_free;
}
ret = request_firmware(&fw_entry, ROM_FILE,
&priv->ks_sdio_card->func->dev);
if (ret)
goto release_host_and_free;
length = fw_entry->size;
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);
offset = n;
ret = ks7010_sdio_update_index(priv, KS7010_IRAM_ADDRESS + offset);
if (ret)
goto release_firmware;
ret = ks7010_sdio_write(priv, DATA_WINDOW, rom_buf, size);
if (ret)
goto release_firmware;
ret = ks7010_sdio_data_compare(priv, DATA_WINDOW, rom_buf, size);
if (ret)
goto release_firmware;
n += size;
} while (size);
ret = ks7010_sdio_writeb(priv, GCR_A, GCR_A_REMAP);
if (ret)
goto release_firmware;
DPRINTK(4, " REMAP Request : GCR_A\n");
/* Firmware running check */
for (n = 0; n < 50; ++n) {
mdelay(10); /* wait_ms(10); */
ret = ks7010_sdio_readb(priv, GCR_A, &byte);
if (ret)
goto release_firmware;
if (byte == GCR_A_RUN)
break;
}
DPRINTK(4, "firmware wakeup (%d)!!!!\n", n);
if ((50) <= n) {
DPRINTK(1, "firmware can't start\n");
ret = -EIO;
goto release_firmware;
}
ret = 0;
release_firmware:
release_firmware(fw_entry);
release_host_and_free:
sdio_release_host(card->func);
kfree(rom_buf);
return ret;
}
static void ks7010_card_init(struct ks_wlan_private *priv)
{
DPRINTK(5, "\ncard_init_task()\n");
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 != 0)
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.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_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 byte;
int ret;
priv = NULL;
netdev = NULL;
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);
DPRINTK(5, "multi_block=%d sdio_set_block_size()=%d %d\n",
func->card->cccr.multi_block, func->cur_blksize, ret);
ret = sdio_enable_func(func);
DPRINTK(5, "sdio_enable_func() %d\n", ret);
if (ret)
goto err_free_card;
/* interrupt disable */
sdio_writeb(func, 0, INT_ENABLE, &ret);
if (ret)
goto err_free_card;
sdio_writeb(func, 0xff, INT_PENDING, &ret);
if (ret)
goto err_disable_func;
/* setup interrupt handler */
ret = sdio_claim_irq(func, ks_sdio_interrupt);
if (ret)
goto err_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) {
dev_err(&card->func->dev, "ks7010 : Unable to alloc new net device\n");
goto err_release_irq;
}
if (dev_alloc_name(netdev, "wlan%d") < 0) {
dev_err(&card->func->dev,
"ks7010 : Couldn't get name!\n");
goto err_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_sdio_card = 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);
ret = ks7010_upload_firmware(card);
if (ret) {
dev_err(&card->func->dev,
"ks7010: firmware load failed !! return code = %d\n",
ret);
goto err_free_netdev;
}
/* interrupt setting */
/* clear Interrupt status write (ARMtoSD_InterruptPending FN1:00_0024) */
sdio_claim_host(func);
ret = ks7010_sdio_writeb(priv, INT_PENDING, 0xff);
sdio_release_host(func);
if (ret)
DPRINTK(1, " error : INT_PENDING\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, byte);
sdio_release_host(func);
if (ret)
DPRINTK(1, " err : INT_ENABLE\n");
DPRINTK(4, " enable Interrupt : INT_ENABLE=%02X\n", byte);
priv->dev_state = DEVICE_STATE_BOOT;
priv->wq = create_workqueue("wq");
if (!priv->wq) {
DPRINTK(1, "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_free_netdev;
return 0;
err_free_netdev:
free_netdev(priv->net_dev);
card->priv = NULL;
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_t *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) {
DPRINTK(3, "allocate memory failed..\n");
return -ENOMEM;
}
size = sizeof(*pp) - sizeof(pp->header.size);
pp->header.size = cpu_to_le16((uint16_t)size);
pp->header.event = cpu_to_le16((uint16_t)HIF_STOP_REQ);
sdio_claim_host(func);
write_to_device(card->priv, (unsigned char *)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;
DPRINTK(1, "priv = card->priv\n");
priv = card->priv;
if (priv) {
struct net_device *netdev = priv->net_dev;
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");
ret = send_stop_request(func);
if (ret) /* memory allocation failure */
return;
DPRINTK(1, "STOP Req\n");
if (priv->wq) {
flush_workqueue(priv->wq);
destroy_workqueue(priv->wq);
}
DPRINTK(1, "destroy_workqueue(priv->wq);\n");
hostif_exit(priv);
DPRINTK(1, "hostif_exit\n");
unregister_netdev(netdev);
trx_device_exit(priv);
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");
}
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);
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