*/
#include <linux/module.h>
+#include <linux/slab.h>
#include <linux/delay.h>
#include <linux/moduleparam.h>
#include <linux/firmware.h>
MODULE_AUTHOR("Holger Schurig <hs4233@mail.mn-solutions.de>");
MODULE_DESCRIPTION("Driver for Marvell 83xx compact flash WLAN cards");
MODULE_LICENSE("GPL");
+MODULE_FIRMWARE("libertas_cs_helper.fw");
struct if_cs_card {
struct pcmcia_device *p_dev;
- wlan_private *priv;
+ struct lbs_private *priv;
void __iomem *iobase;
+ bool align_regs;
};
{
unsigned int val = ioread8(card->iobase + reg);
if (debug_output)
- printk(KERN_INFO "##inb %08x<%02x\n", reg, val);
+ printk(KERN_INFO "inb %08x<%02x\n", reg, val);
return val;
}
static inline unsigned int if_cs_read16(struct if_cs_card *card, uint reg)
{
unsigned int val = ioread16(card->iobase + reg);
if (debug_output)
- printk(KERN_INFO "##inw %08x<%04x\n", reg, val);
+ printk(KERN_INFO "inw %08x<%04x\n", reg, val);
return val;
}
static inline void if_cs_read16_rep(
unsigned long count)
{
if (debug_output)
- printk(KERN_INFO "##insw %08x<(0x%lx words)\n",
+ printk(KERN_INFO "insw %08x<(0x%lx words)\n",
reg, count);
ioread16_rep(card->iobase + reg, buf, count);
}
static inline void if_cs_write8(struct if_cs_card *card, uint reg, u8 val)
{
if (debug_output)
- printk(KERN_INFO "##outb %08x>%02x\n", reg, val);
+ printk(KERN_INFO "outb %08x>%02x\n", reg, val);
iowrite8(val, card->iobase + reg);
}
static inline void if_cs_write16(struct if_cs_card *card, uint reg, u16 val)
{
if (debug_output)
- printk(KERN_INFO "##outw %08x>%04x\n", reg, val);
+ printk(KERN_INFO "outw %08x>%04x\n", reg, val);
iowrite16(val, card->iobase + reg);
}
static inline void if_cs_write16_rep(
struct if_cs_card *card,
uint reg,
- void *buf,
+ const void *buf,
unsigned long count)
{
if (debug_output)
- printk(KERN_INFO "##outsw %08x>(0x%lx words)\n",
+ printk(KERN_INFO "outsw %08x>(0x%lx words)\n",
reg, count);
iowrite16_rep(card->iobase + reg, buf, count);
}
{
int i;
- for (i = 0; i < 500; i++) {
+ for (i = 0; i < 100000; i++) {
u8 val = if_cs_read8(card, addr);
if (val == reg)
- return i;
- udelay(100);
+ return 0;
+ udelay(5);
}
return -ETIME;
}
-/* Host control registers and their bit definitions */
-
-#define IF_CS_H_STATUS 0x00000000
-#define IF_CS_H_STATUS_TX_OVER 0x0001
-#define IF_CS_H_STATUS_RX_OVER 0x0002
-#define IF_CS_H_STATUS_DNLD_OVER 0x0004
-
-#define IF_CS_H_INT_CAUSE 0x00000002
-#define IF_CS_H_IC_TX_OVER 0x0001
-#define IF_CS_H_IC_RX_OVER 0x0002
-#define IF_CS_H_IC_DNLD_OVER 0x0004
-#define IF_CS_H_IC_HOST_EVENT 0x0008
-#define IF_CS_H_IC_MASK 0x001f
-
-#define IF_CS_H_INT_MASK 0x00000004
-#define IF_CS_H_IM_MASK 0x001f
-
-#define IF_CS_H_WRITE_LEN 0x00000014
+/*
+ * First the bitmasks for the host/card interrupt/status registers:
+ */
+#define IF_CS_BIT_TX 0x0001
+#define IF_CS_BIT_RX 0x0002
+#define IF_CS_BIT_COMMAND 0x0004
+#define IF_CS_BIT_RESP 0x0008
+#define IF_CS_BIT_EVENT 0x0010
+#define IF_CS_BIT_MASK 0x001f
-#define IF_CS_H_WRITE 0x00000016
-#define IF_CS_H_CMD_LEN 0x00000018
-#define IF_CS_H_CMD 0x0000001A
+/*
+ * It's not really clear to me what the host status register is for. It
+ * needs to be set almost in union with "host int cause". The following
+ * bits from above are used:
+ *
+ * IF_CS_BIT_TX driver downloaded a data packet
+ * IF_CS_BIT_RX driver got a data packet
+ * IF_CS_BIT_COMMAND driver downloaded a command
+ * IF_CS_BIT_RESP not used (has some meaning with powerdown)
+ * IF_CS_BIT_EVENT driver read a host event
+ */
+#define IF_CS_HOST_STATUS 0x00000000
-#define IF_CS_C_READ_LEN 0x00000024
+/*
+ * With the host int cause register can the host (that is, Linux) cause
+ * an interrupt in the firmware, to tell the firmware about those events:
+ *
+ * IF_CS_BIT_TX a data packet has been downloaded
+ * IF_CS_BIT_RX a received data packet has retrieved
+ * IF_CS_BIT_COMMAND a firmware block or a command has been downloaded
+ * IF_CS_BIT_RESP not used (has some meaning with powerdown)
+ * IF_CS_BIT_EVENT a host event (link lost etc) has been retrieved
+ */
+#define IF_CS_HOST_INT_CAUSE 0x00000002
-#define IF_CS_H_READ 0x00000010
+/*
+ * The host int mask register is used to enable/disable interrupt. However,
+ * I have the suspicion that disabled interrupts are lost.
+ */
+#define IF_CS_HOST_INT_MASK 0x00000004
-/* Card control registers and their bit definitions */
+/*
+ * Used to send or receive data packets:
+ */
+#define IF_CS_WRITE 0x00000016
+#define IF_CS_WRITE_LEN 0x00000014
+#define IF_CS_READ 0x00000010
+#define IF_CS_READ_LEN 0x00000024
-#define IF_CS_C_STATUS 0x00000020
-#define IF_CS_C_S_TX_DNLD_RDY 0x0001
-#define IF_CS_C_S_RX_UPLD_RDY 0x0002
-#define IF_CS_C_S_CMD_DNLD_RDY 0x0004
-#define IF_CS_C_S_CMD_UPLD_RDY 0x0008
-#define IF_CS_C_S_CARDEVENT 0x0010
-#define IF_CS_C_S_MASK 0x001f
-#define IF_CS_C_S_STATUS_MASK 0x7f00
-/* The following definitions should be the same as the MRVDRV_ ones */
+/*
+ * Used to send commands (and to send firmware block) and to
+ * receive command responses:
+ */
+#define IF_CS_CMD 0x0000001A
+#define IF_CS_CMD_LEN 0x00000018
+#define IF_CS_RESP 0x00000012
+#define IF_CS_RESP_LEN 0x00000030
-#if MRVDRV_CMD_DNLD_RDY != IF_CS_C_S_CMD_DNLD_RDY
-#error MRVDRV_CMD_DNLD_RDY and IF_CS_C_S_CMD_DNLD_RDY not in sync
-#endif
-#if MRVDRV_CMD_UPLD_RDY != IF_CS_C_S_CMD_UPLD_RDY
-#error MRVDRV_CMD_UPLD_RDY and IF_CS_C_S_CMD_UPLD_RDY not in sync
-#endif
-#if MRVDRV_CARDEVENT != IF_CS_C_S_CARDEVENT
-#error MRVDRV_CARDEVENT and IF_CS_C_S_CARDEVENT not in sync
-#endif
+/*
+ * The card status registers shows what the card/firmware actually
+ * accepts:
+ *
+ * IF_CS_BIT_TX you may send a data packet
+ * IF_CS_BIT_RX you may retrieve a data packet
+ * IF_CS_BIT_COMMAND you may send a command
+ * IF_CS_BIT_RESP you may retrieve a command response
+ * IF_CS_BIT_EVENT the card has a event for use (link lost, snr low etc)
+ *
+ * When reading this register several times, you will get back the same
+ * results --- with one exception: the IF_CS_BIT_EVENT clear itself
+ * automatically.
+ *
+ * Not that we don't rely on BIT_RX,_BIT_RESP or BIT_EVENT because
+ * we handle this via the card int cause register.
+ */
+#define IF_CS_CARD_STATUS 0x00000020
+#define IF_CS_CARD_STATUS_MASK 0x7f00
-#define IF_CS_C_INT_CAUSE 0x00000022
-#define IF_CS_C_IC_MASK 0x001f
+/*
+ * The card int cause register is used by the card/firmware to notify us
+ * about the following events:
+ *
+ * IF_CS_BIT_TX a data packet has successfully been sentx
+ * IF_CS_BIT_RX a data packet has been received and can be retrieved
+ * IF_CS_BIT_COMMAND not used
+ * IF_CS_BIT_RESP the firmware has a command response for us
+ * IF_CS_BIT_EVENT the card has a event for use (link lost, snr low etc)
+ */
+#define IF_CS_CARD_INT_CAUSE 0x00000022
-#define IF_CS_C_SQ_READ_LOW 0x00000028
-#define IF_CS_C_SQ_HELPER_OK 0x10
+/*
+ * This is used to for handshaking with the card's bootloader/helper image
+ * to synchronize downloading of firmware blocks.
+ */
+#define IF_CS_SQ_READ_LOW 0x00000028
+#define IF_CS_SQ_HELPER_OK 0x10
-#define IF_CS_C_CMD_LEN 0x00000030
+/*
+ * The scratch register tells us ...
+ *
+ * IF_CS_SCRATCH_BOOT_OK the bootloader runs
+ * IF_CS_SCRATCH_HELPER_OK the helper firmware already runs
+ */
+#define IF_CS_SCRATCH 0x0000003F
+#define IF_CS_SCRATCH_BOOT_OK 0x00
+#define IF_CS_SCRATCH_HELPER_OK 0x5a
-#define IF_CS_C_CMD 0x00000012
+/*
+ * Used to detect ancient chips:
+ */
+#define IF_CS_PRODUCT_ID 0x0000001C
+#define IF_CS_CF8385_B1_REV 0x12
+#define IF_CS_CF8381_B3_REV 0x04
+#define IF_CS_CF8305_B1_REV 0x03
-#define IF_CS_SCRATCH 0x0000003F
+/*
+ * Used to detect other cards than CF8385 since their revisions of silicon
+ * doesn't match those from CF8385, eg. CF8381 B3 works with this driver.
+ */
+#define CF8305_MANFID 0x02db
+#define CF8305_CARDID 0x8103
+#define CF8381_MANFID 0x02db
+#define CF8381_CARDID 0x6064
+#define CF8385_MANFID 0x02df
+#define CF8385_CARDID 0x8103
+
+static inline int if_cs_hw_is_cf8305(struct pcmcia_device *p_dev)
+{
+ return (p_dev->manf_id == CF8305_MANFID &&
+ p_dev->card_id == CF8305_CARDID);
+}
+static inline int if_cs_hw_is_cf8381(struct pcmcia_device *p_dev)
+{
+ return (p_dev->manf_id == CF8381_MANFID &&
+ p_dev->card_id == CF8381_CARDID);
+}
+static inline int if_cs_hw_is_cf8385(struct pcmcia_device *p_dev)
+{
+ return (p_dev->manf_id == CF8385_MANFID &&
+ p_dev->card_id == CF8385_CARDID);
+}
/********************************************************************/
-/* Interrupts */
+/* I/O and interrupt handling */
/********************************************************************/
static inline void if_cs_enable_ints(struct if_cs_card *card)
{
lbs_deb_enter(LBS_DEB_CS);
- if_cs_write16(card, IF_CS_H_INT_MASK, 0);
+ if_cs_write16(card, IF_CS_HOST_INT_MASK, 0);
}
static inline void if_cs_disable_ints(struct if_cs_card *card)
{
lbs_deb_enter(LBS_DEB_CS);
- if_cs_write16(card, IF_CS_H_INT_MASK, IF_CS_H_IM_MASK);
-}
-
-static irqreturn_t if_cs_interrupt(int irq, void *data)
-{
- struct if_cs_card *card = (struct if_cs_card *)data;
- u16 int_cause;
-
- lbs_deb_enter(LBS_DEB_CS);
-
- int_cause = if_cs_read16(card, IF_CS_C_INT_CAUSE);
- if(int_cause == 0x0) {
- /* Not for us */
- return IRQ_NONE;
-
- } else if(int_cause == 0xffff) {
- /* Read in junk, the card has probably been removed */
- card->priv->adapter->surpriseremoved = 1;
-
- } else {
- if(int_cause & IF_CS_H_IC_TX_OVER) {
- card->priv->dnld_sent = DNLD_RES_RECEIVED;
- if (!card->priv->adapter->cur_cmd)
- wake_up_interruptible(&card->priv->waitq);
-
- if (card->priv->adapter->connect_status == LIBERTAS_CONNECTED)
- netif_wake_queue(card->priv->dev);
- }
-
- /* clear interrupt */
- if_cs_write16(card, IF_CS_C_INT_CAUSE, int_cause & IF_CS_C_IC_MASK);
- }
-
- libertas_interrupt(card->priv->dev);
-
- return IRQ_HANDLED;
+ if_cs_write16(card, IF_CS_HOST_INT_MASK, IF_CS_BIT_MASK);
}
-
-
-
-/********************************************************************/
-/* I/O */
-/********************************************************************/
-
/*
* Called from if_cs_host_to_card to send a command to the hardware
*/
-static int if_cs_send_cmd(wlan_private *priv, u8 *buf, u16 nb)
+static int if_cs_send_cmd(struct lbs_private *priv, u8 *buf, u16 nb)
{
struct if_cs_card *card = (struct if_cs_card *)priv->card;
int ret = -1;
int loops = 0;
lbs_deb_enter(LBS_DEB_CS);
+ if_cs_disable_ints(card);
/* Is hardware ready? */
while (1) {
- u16 val = if_cs_read16(card, IF_CS_C_STATUS);
- if (val & IF_CS_C_S_CMD_DNLD_RDY)
+ u16 status = if_cs_read16(card, IF_CS_CARD_STATUS);
+ if (status & IF_CS_BIT_COMMAND)
break;
if (++loops > 100) {
lbs_pr_err("card not ready for commands\n");
mdelay(1);
}
- if_cs_write16(card, IF_CS_H_CMD_LEN, nb);
+ if_cs_write16(card, IF_CS_CMD_LEN, nb);
- if_cs_write16_rep(card, IF_CS_H_CMD, buf, nb / 2);
+ if_cs_write16_rep(card, IF_CS_CMD, buf, nb / 2);
/* Are we supposed to transfer an odd amount of bytes? */
if (nb & 1)
- if_cs_write8(card, IF_CS_H_CMD, buf[nb-1]);
+ if_cs_write8(card, IF_CS_CMD, buf[nb-1]);
/* "Assert the download over interrupt command in the Host
* status register" */
- if_cs_write16(card, IF_CS_H_STATUS, IF_CS_H_STATUS_DNLD_OVER);
+ if_cs_write16(card, IF_CS_HOST_STATUS, IF_CS_BIT_COMMAND);
/* "Assert the download over interrupt command in the Card
* interrupt case register" */
- if_cs_write16(card, IF_CS_H_INT_CAUSE, IF_CS_H_IC_DNLD_OVER);
+ if_cs_write16(card, IF_CS_HOST_INT_CAUSE, IF_CS_BIT_COMMAND);
ret = 0;
done:
+ if_cs_enable_ints(card);
lbs_deb_leave_args(LBS_DEB_CS, "ret %d", ret);
return ret;
}
-
/*
* Called from if_cs_host_to_card to send a data to the hardware
*/
-static void if_cs_send_data(wlan_private *priv, u8 *buf, u16 nb)
+static void if_cs_send_data(struct lbs_private *priv, u8 *buf, u16 nb)
{
struct if_cs_card *card = (struct if_cs_card *)priv->card;
+ u16 status;
lbs_deb_enter(LBS_DEB_CS);
+ if_cs_disable_ints(card);
+
+ status = if_cs_read16(card, IF_CS_CARD_STATUS);
+ BUG_ON((status & IF_CS_BIT_TX) == 0);
- if_cs_write16(card, IF_CS_H_WRITE_LEN, nb);
+ if_cs_write16(card, IF_CS_WRITE_LEN, nb);
/* write even number of bytes, then odd byte if necessary */
- if_cs_write16_rep(card, IF_CS_H_WRITE, buf, nb / 2);
+ if_cs_write16_rep(card, IF_CS_WRITE, buf, nb / 2);
if (nb & 1)
- if_cs_write8(card, IF_CS_H_WRITE, buf[nb-1]);
+ if_cs_write8(card, IF_CS_WRITE, buf[nb-1]);
- if_cs_write16(card, IF_CS_H_STATUS, IF_CS_H_STATUS_TX_OVER);
- if_cs_write16(card, IF_CS_H_INT_CAUSE, IF_CS_H_STATUS_TX_OVER);
+ if_cs_write16(card, IF_CS_HOST_STATUS, IF_CS_BIT_TX);
+ if_cs_write16(card, IF_CS_HOST_INT_CAUSE, IF_CS_BIT_TX);
+ if_cs_enable_ints(card);
lbs_deb_leave(LBS_DEB_CS);
}
-
/*
* Get the command result out of the card.
*/
-static int if_cs_receive_cmdres(wlan_private *priv, u8* data, u32 *len)
+static int if_cs_receive_cmdres(struct lbs_private *priv, u8 *data, u32 *len)
{
+ unsigned long flags;
int ret = -1;
- u16 val;
+ u16 status;
lbs_deb_enter(LBS_DEB_CS);
/* is hardware ready? */
- val = if_cs_read16(priv->card, IF_CS_C_STATUS);
- if ((val & IF_CS_C_S_CMD_UPLD_RDY) == 0) {
- lbs_pr_err("card not ready for CMD\n");
+ status = if_cs_read16(priv->card, IF_CS_CARD_STATUS);
+ if ((status & IF_CS_BIT_RESP) == 0) {
+ lbs_pr_err("no cmd response in card\n");
+ *len = 0;
goto out;
}
- *len = if_cs_read16(priv->card, IF_CS_C_CMD_LEN);
- if ((*len == 0) || (*len > MRVDRV_SIZE_OF_CMD_BUFFER)) {
+ *len = if_cs_read16(priv->card, IF_CS_RESP_LEN);
+ if ((*len == 0) || (*len > LBS_CMD_BUFFER_SIZE)) {
lbs_pr_err("card cmd buffer has invalid # of bytes (%d)\n", *len);
goto out;
}
/* read even number of bytes, then odd byte if necessary */
- if_cs_read16_rep(priv->card, IF_CS_C_CMD, data, *len/sizeof(u16));
+ if_cs_read16_rep(priv->card, IF_CS_RESP, data, *len/sizeof(u16));
if (*len & 1)
- data[*len-1] = if_cs_read8(priv->card, IF_CS_C_CMD);
+ data[*len-1] = if_cs_read8(priv->card, IF_CS_RESP);
+ /* This is a workaround for a firmware that reports too much
+ * bytes */
+ *len -= 8;
ret = 0;
+
+ /* Clear this flag again */
+ spin_lock_irqsave(&priv->driver_lock, flags);
+ priv->dnld_sent = DNLD_RES_RECEIVED;
+ spin_unlock_irqrestore(&priv->driver_lock, flags);
+
out:
lbs_deb_leave_args(LBS_DEB_CS, "ret %d, len %d", ret, *len);
return ret;
}
-
-static struct sk_buff *if_cs_receive_data(wlan_private *priv)
+static struct sk_buff *if_cs_receive_data(struct lbs_private *priv)
{
struct sk_buff *skb = NULL;
u16 len;
lbs_deb_enter(LBS_DEB_CS);
- len = if_cs_read16(priv->card, IF_CS_C_READ_LEN);
+ len = if_cs_read16(priv->card, IF_CS_READ_LEN);
if (len == 0 || len > MRVDRV_ETH_RX_PACKET_BUFFER_SIZE) {
lbs_pr_err("card data buffer has invalid # of bytes (%d)\n", len);
- priv->stats.rx_dropped++;
- printk(KERN_INFO "##HS %s:%d TODO\n", __FUNCTION__, __LINE__);
+ priv->dev->stats.rx_dropped++;
goto dat_err;
}
- //TODO: skb = dev_alloc_skb(len+ETH_FRAME_LEN+MRVDRV_SNAP_HEADER_LEN+EXTRA_LEN);
skb = dev_alloc_skb(MRVDRV_ETH_RX_PACKET_BUFFER_SIZE + 2);
if (!skb)
goto out;
data = skb->data;
/* read even number of bytes, then odd byte if necessary */
- if_cs_read16_rep(priv->card, IF_CS_H_READ, data, len/sizeof(u16));
+ if_cs_read16_rep(priv->card, IF_CS_READ, data, len/sizeof(u16));
if (len & 1)
- data[len-1] = if_cs_read8(priv->card, IF_CS_H_READ);
+ data[len-1] = if_cs_read8(priv->card, IF_CS_READ);
dat_err:
- if_cs_write16(priv->card, IF_CS_H_STATUS, IF_CS_H_STATUS_RX_OVER);
- if_cs_write16(priv->card, IF_CS_H_INT_CAUSE, IF_CS_H_IC_RX_OVER);
+ if_cs_write16(priv->card, IF_CS_HOST_STATUS, IF_CS_BIT_RX);
+ if_cs_write16(priv->card, IF_CS_HOST_INT_CAUSE, IF_CS_BIT_RX);
out:
lbs_deb_leave_args(LBS_DEB_CS, "ret %p", skb);
return skb;
}
+static irqreturn_t if_cs_interrupt(int irq, void *data)
+{
+ struct if_cs_card *card = data;
+ struct lbs_private *priv = card->priv;
+ u16 cause;
+
+ lbs_deb_enter(LBS_DEB_CS);
+
+ /* Ask card interrupt cause register if there is something for us */
+ cause = if_cs_read16(card, IF_CS_CARD_INT_CAUSE);
+ lbs_deb_cs("cause 0x%04x\n", cause);
+
+ if (cause == 0) {
+ /* Not for us */
+ return IRQ_NONE;
+ }
+
+ if (cause == 0xffff) {
+ /* Read in junk, the card has probably been removed */
+ card->priv->surpriseremoved = 1;
+ return IRQ_HANDLED;
+ }
+
+ if (cause & IF_CS_BIT_RX) {
+ struct sk_buff *skb;
+ lbs_deb_cs("rx packet\n");
+ skb = if_cs_receive_data(priv);
+ if (skb)
+ lbs_process_rxed_packet(priv, skb);
+ }
+
+ if (cause & IF_CS_BIT_TX) {
+ lbs_deb_cs("tx done\n");
+ lbs_host_to_card_done(priv);
+ }
+
+ if (cause & IF_CS_BIT_RESP) {
+ unsigned long flags;
+ u8 i;
+
+ lbs_deb_cs("cmd resp\n");
+ spin_lock_irqsave(&priv->driver_lock, flags);
+ i = (priv->resp_idx == 0) ? 1 : 0;
+ spin_unlock_irqrestore(&priv->driver_lock, flags);
+
+ BUG_ON(priv->resp_len[i]);
+ if_cs_receive_cmdres(priv, priv->resp_buf[i],
+ &priv->resp_len[i]);
+
+ spin_lock_irqsave(&priv->driver_lock, flags);
+ lbs_notify_command_response(priv, i);
+ spin_unlock_irqrestore(&priv->driver_lock, flags);
+ }
+
+ if (cause & IF_CS_BIT_EVENT) {
+ u16 status = if_cs_read16(priv->card, IF_CS_CARD_STATUS);
+ if_cs_write16(priv->card, IF_CS_HOST_INT_CAUSE,
+ IF_CS_BIT_EVENT);
+ lbs_queue_event(priv, (status & IF_CS_CARD_STATUS_MASK) >> 8);
+ }
+
+ /* Clear interrupt cause */
+ if_cs_write16(card, IF_CS_CARD_INT_CAUSE, cause & IF_CS_BIT_MASK);
+
+ lbs_deb_leave(LBS_DEB_CS);
+ return IRQ_HANDLED;
+}
+
+
/********************************************************************/
lbs_deb_enter(LBS_DEB_CS);
- scratch = if_cs_read8(card, IF_CS_SCRATCH);
+ /*
+ * This is the only place where an unaligned register access happens on
+ * the CF8305 card, therefore for the sake of speed of the driver, we do
+ * the alignment correction here.
+ */
+ if (card->align_regs)
+ scratch = if_cs_read16(card, IF_CS_SCRATCH) >> 8;
+ else
+ scratch = if_cs_read8(card, IF_CS_SCRATCH);
/* "If the value is 0x5a, the firmware is already
* downloaded successfully"
*/
- if (scratch == 0x5a)
+ if (scratch == IF_CS_SCRATCH_HELPER_OK)
goto done;
/* "If the value is != 00, it is invalid value of register */
- if (scratch != 0x00) {
+ if (scratch != IF_CS_SCRATCH_BOOT_OK) {
ret = -ENODEV;
goto done;
}
/* TODO: make firmware file configurable */
ret = request_firmware(&fw, "libertas_cs_helper.fw",
- &handle_to_dev(card->p_dev));
+ &card->p_dev->dev);
if (ret) {
lbs_pr_err("can't load helper firmware\n");
ret = -ENODEV;
if (remain < count)
count = remain;
- /* printk(KERN_INFO "//HS %d loading %d of %d bytes\n",
- __LINE__, sent, fw->size); */
/* "write the number of bytes to be sent to the I/O Command
* write length register" */
- if_cs_write16(card, IF_CS_H_CMD_LEN, count);
+ if_cs_write16(card, IF_CS_CMD_LEN, count);
/* "write this to I/O Command port register as 16 bit writes */
if (count)
- if_cs_write16_rep(card, IF_CS_H_CMD,
+ if_cs_write16_rep(card, IF_CS_CMD,
&fw->data[sent],
count >> 1);
/* "Assert the download over interrupt command in the Host
* status register" */
- if_cs_write8(card, IF_CS_H_STATUS, IF_CS_H_STATUS_DNLD_OVER);
+ if_cs_write8(card, IF_CS_HOST_STATUS, IF_CS_BIT_COMMAND);
/* "Assert the download over interrupt command in the Card
* interrupt case register" */
- if_cs_write16(card, IF_CS_H_INT_CAUSE, IF_CS_H_IC_DNLD_OVER);
+ if_cs_write16(card, IF_CS_HOST_INT_CAUSE, IF_CS_BIT_COMMAND);
/* "The host polls the Card Status register ... for 50 ms before
declaring a failure */
- ret = if_cs_poll_while_fw_download(card, IF_CS_C_STATUS,
- IF_CS_C_S_CMD_DNLD_RDY);
+ ret = if_cs_poll_while_fw_download(card, IF_CS_CARD_STATUS,
+ IF_CS_BIT_COMMAND);
if (ret < 0) {
lbs_pr_err("can't download helper at 0x%x, ret %d\n",
sent, ret);
- goto done;
+ goto err_release;
}
if (count == 0)
sent += count;
}
+err_release:
release_firmware(fw);
- ret = 0;
-
done:
lbs_deb_leave_args(LBS_DEB_CS, "ret %d", ret);
return ret;
/* TODO: make firmware file configurable */
ret = request_firmware(&fw, "libertas_cs.fw",
- &handle_to_dev(card->p_dev));
+ &card->p_dev->dev);
if (ret) {
lbs_pr_err("can't load firmware\n");
ret = -ENODEV;
}
lbs_deb_cs("fw size %td\n", fw->size);
- ret = if_cs_poll_while_fw_download(card, IF_CS_C_SQ_READ_LOW, IF_CS_C_SQ_HELPER_OK);
+ ret = if_cs_poll_while_fw_download(card, IF_CS_SQ_READ_LOW,
+ IF_CS_SQ_HELPER_OK);
if (ret < 0) {
- int i;
lbs_pr_err("helper firmware doesn't answer\n");
- for (i = 0; i < 0x50; i += 2)
- printk(KERN_INFO "## HS %02x: %04x\n",
- i, if_cs_read16(card, i));
goto err_release;
}
for (sent = 0; sent < fw->size; sent += len) {
- len = if_cs_read16(card, IF_CS_C_SQ_READ_LOW);
- /* printk(KERN_INFO "//HS %d loading %d of %d bytes\n",
- __LINE__, sent, fw->size); */
+ len = if_cs_read16(card, IF_CS_SQ_READ_LOW);
if (len & 1) {
retry++;
lbs_pr_info("odd, need to retry this firmware block\n");
}
- if_cs_write16(card, IF_CS_H_CMD_LEN, len);
+ if_cs_write16(card, IF_CS_CMD_LEN, len);
- if_cs_write16_rep(card, IF_CS_H_CMD,
+ if_cs_write16_rep(card, IF_CS_CMD,
&fw->data[sent],
(len+1) >> 1);
- if_cs_write8(card, IF_CS_H_STATUS, IF_CS_H_STATUS_DNLD_OVER);
- if_cs_write16(card, IF_CS_H_INT_CAUSE, IF_CS_H_IC_DNLD_OVER);
+ if_cs_write8(card, IF_CS_HOST_STATUS, IF_CS_BIT_COMMAND);
+ if_cs_write16(card, IF_CS_HOST_INT_CAUSE, IF_CS_BIT_COMMAND);
- ret = if_cs_poll_while_fw_download(card, IF_CS_C_STATUS,
- IF_CS_C_S_CMD_DNLD_RDY);
+ ret = if_cs_poll_while_fw_download(card, IF_CS_CARD_STATUS,
+ IF_CS_BIT_COMMAND);
if (ret < 0) {
lbs_pr_err("can't download firmware at 0x%x\n", sent);
goto err_release;
}
ret = if_cs_poll_while_fw_download(card, IF_CS_SCRATCH, 0x5a);
- if (ret < 0) {
+ if (ret < 0)
lbs_pr_err("firmware download failed\n");
- goto err_release;
- }
-
- ret = 0;
- goto done;
-
err_release:
release_firmware(fw);
/********************************************************************/
/* Send commands or data packets to the card */
-static int if_cs_host_to_card(wlan_private *priv, u8 type, u8 *buf, u16 nb)
+static int if_cs_host_to_card(struct lbs_private *priv,
+ u8 type,
+ u8 *buf,
+ u16 nb)
{
int ret = -1;
ret = if_cs_send_cmd(priv, buf, nb);
break;
default:
- lbs_pr_err("%s: unsupported type %d\n", __FUNCTION__, type);
+ lbs_pr_err("%s: unsupported type %d\n", __func__, type);
}
lbs_deb_leave_args(LBS_DEB_CS, "ret %d", ret);
}
-static int if_cs_get_int_status(wlan_private *priv, u8 *ireg)
-{
- struct if_cs_card *card = (struct if_cs_card *)priv->card;
- //wlan_adapter *adapter = priv->adapter;
- int ret = 0;
- u16 int_cause;
- u8 *cmdbuf;
- *ireg = 0;
-
- lbs_deb_enter(LBS_DEB_CS);
-
- if (priv->adapter->surpriseremoved)
- goto out;
-
- int_cause = if_cs_read16(card, IF_CS_C_INT_CAUSE) & IF_CS_C_IC_MASK;
- if_cs_write16(card, IF_CS_C_INT_CAUSE, int_cause);
-
- *ireg = if_cs_read16(card, IF_CS_C_STATUS) & IF_CS_C_S_MASK;
-
- if (!*ireg)
- goto sbi_get_int_status_exit;
-
-sbi_get_int_status_exit:
-
- /* is there a data packet for us? */
- if (*ireg & IF_CS_C_S_RX_UPLD_RDY) {
- struct sk_buff *skb = if_cs_receive_data(priv);
- libertas_process_rxed_packet(priv, skb);
- *ireg &= ~IF_CS_C_S_RX_UPLD_RDY;
- }
-
- if (*ireg & IF_CS_C_S_TX_DNLD_RDY) {
- priv->dnld_sent = DNLD_RES_RECEIVED;
- }
-
- /* Card has a command result for us */
- if (*ireg & IF_CS_C_S_CMD_UPLD_RDY) {
- spin_lock(&priv->adapter->driver_lock);
- if (!priv->adapter->cur_cmd) {
- cmdbuf = priv->upld_buf;
- priv->adapter->hisregcpy &= ~IF_CS_C_S_RX_UPLD_RDY;
- } else {
- cmdbuf = priv->adapter->cur_cmd->bufvirtualaddr;
- }
-
- ret = if_cs_receive_cmdres(priv, cmdbuf, &priv->upld_len);
- spin_unlock(&priv->adapter->driver_lock);
- if (ret < 0)
- lbs_pr_err("could not receive cmd from card\n");
- }
-
-out:
- lbs_deb_leave_args(LBS_DEB_CS, "ret %d, ireg 0x%x, hisregcpy 0x%x", ret, *ireg, priv->adapter->hisregcpy);
- return ret;
-}
-
-
-static int if_cs_read_event_cause(wlan_private *priv)
-{
- lbs_deb_enter(LBS_DEB_CS);
-
- priv->adapter->eventcause = (if_cs_read16(priv->card, IF_CS_C_STATUS) & IF_CS_C_S_STATUS_MASK) >> 5;
- if_cs_write16(priv->card, IF_CS_H_INT_CAUSE, IF_CS_H_IC_HOST_EVENT);
-
- return 0;
-}
-
-
-
/********************************************************************/
/* Card Services */
/********************************************************************/
lbs_deb_enter(LBS_DEB_CS);
- pcmcia_disable_device(p_dev);
free_irq(p_dev->irq.AssignedIRQ, card);
+ pcmcia_disable_device(p_dev);
if (card->iobase)
ioport_unmap(card->iobase);
* configure the card at this point -- we wait until we receive a card
* insertion event.
*/
+
+static int if_cs_ioprobe(struct pcmcia_device *p_dev,
+ cistpl_cftable_entry_t *cfg,
+ cistpl_cftable_entry_t *dflt,
+ unsigned int vcc,
+ void *priv_data)
+{
+ p_dev->io.Attributes1 = IO_DATA_PATH_WIDTH_AUTO;
+ p_dev->io.BasePort1 = cfg->io.win[0].base;
+ p_dev->io.NumPorts1 = cfg->io.win[0].len;
+
+ /* Do we need to allocate an interrupt? */
+ if (cfg->irq.IRQInfo1)
+ p_dev->conf.Attributes |= CONF_ENABLE_IRQ;
+
+ /* IO window settings */
+ if (cfg->io.nwin != 1) {
+ lbs_pr_err("wrong CIS (check number of IO windows)\n");
+ return -ENODEV;
+ }
+
+ /* This reserves IO space but doesn't actually enable it */
+ return pcmcia_request_io(p_dev, &p_dev->io);
+}
+
static int if_cs_probe(struct pcmcia_device *p_dev)
{
int ret = -ENOMEM;
- wlan_private *priv;
+ unsigned int prod_id;
+ struct lbs_private *priv;
struct if_cs_card *card;
- /* CIS parsing */
- tuple_t tuple;
- cisparse_t parse;
- cistpl_cftable_entry_t *cfg = &parse.cftable_entry;
- cistpl_io_t *io = &cfg->io;
- u_char buf[64];
lbs_deb_enter(LBS_DEB_CS);
p_dev->irq.Attributes = IRQ_TYPE_DYNAMIC_SHARING;
p_dev->irq.Handler = NULL;
- p_dev->irq.IRQInfo1 = IRQ_INFO2_VALID | IRQ_LEVEL_ID;
p_dev->conf.Attributes = 0;
p_dev->conf.IntType = INT_MEMORY_AND_IO;
- tuple.Attributes = 0;
- tuple.TupleData = buf;
- tuple.TupleDataMax = sizeof(buf);
- tuple.TupleOffset = 0;
-
- tuple.DesiredTuple = CISTPL_CFTABLE_ENTRY;
- if ((ret = pcmcia_get_first_tuple(p_dev, &tuple)) != 0 ||
- (ret = pcmcia_get_tuple_data(p_dev, &tuple)) != 0 ||
- (ret = pcmcia_parse_tuple(p_dev, &tuple, &parse)) != 0)
- {
- lbs_pr_err("error in pcmcia_get_first_tuple etc\n");
+ if (pcmcia_loop_config(p_dev, if_cs_ioprobe, NULL)) {
+ lbs_pr_err("error in pcmcia_loop_config\n");
goto out1;
}
- p_dev->conf.ConfigIndex = cfg->index;
-
- /* Do we need to allocate an interrupt? */
- if (cfg->irq.IRQInfo1) {
- p_dev->conf.Attributes |= CONF_ENABLE_IRQ;
- }
-
- /* IO window settings */
- if (cfg->io.nwin != 1) {
- lbs_pr_err("wrong CIS (check number of IO windows)\n");
- ret = -ENODEV;
- goto out1;
- }
- p_dev->io.Attributes1 = IO_DATA_PATH_WIDTH_AUTO;
- p_dev->io.BasePort1 = io->win[0].base;
- p_dev->io.NumPorts1 = io->win[0].len;
-
- /* This reserves IO space but doesn't actually enable it */
- ret = pcmcia_request_io(p_dev, &p_dev->io);
- if (ret) {
- lbs_pr_err("error in pcmcia_request_io\n");
- goto out1;
- }
/*
* Allocate an interrupt line. Note that this does not assign
p_dev->irq.AssignedIRQ, p_dev->io.BasePort1,
p_dev->io.BasePort1 + p_dev->io.NumPorts1 - 1);
+ /*
+ * Most of the libertas cards can do unaligned register access, but some
+ * weird ones can not. That's especially true for the CF8305 card.
+ */
+ card->align_regs = 0;
+
+ /* Check if we have a current silicon */
+ prod_id = if_cs_read8(card, IF_CS_PRODUCT_ID);
+ if (if_cs_hw_is_cf8305(p_dev)) {
+ card->align_regs = 1;
+ if (prod_id < IF_CS_CF8305_B1_REV) {
+ lbs_pr_err("old chips like 8305 rev B3 "
+ "aren't supported\n");
+ ret = -ENODEV;
+ goto out2;
+ }
+ }
+
+ if (if_cs_hw_is_cf8381(p_dev) && prod_id < IF_CS_CF8381_B3_REV) {
+ lbs_pr_err("old chips like 8381 rev B3 aren't supported\n");
+ ret = -ENODEV;
+ goto out2;
+ }
+
+ if (if_cs_hw_is_cf8385(p_dev) && prod_id < IF_CS_CF8385_B1_REV) {
+ lbs_pr_err("old chips like 8385 rev B1 aren't supported\n");
+ ret = -ENODEV;
+ goto out2;
+ }
/* Load the firmware early, before calling into libertas.ko */
ret = if_cs_prog_helper(card);
- if (ret == 0)
+ if (ret == 0 && !if_cs_hw_is_cf8305(p_dev))
ret = if_cs_prog_real(card);
if (ret)
goto out2;
/* Make this card known to the libertas driver */
- priv = libertas_add_card(card, &p_dev->dev);
+ priv = lbs_add_card(card, &p_dev->dev);
if (!priv) {
ret = -ENOMEM;
goto out2;
}
- /* Store pointers to our call-back functions */
+ /* Finish setting up fields in lbs_private */
card->priv = priv;
priv->card = card;
- priv->hw_host_to_card = if_cs_host_to_card;
- priv->hw_get_int_status = if_cs_get_int_status;
- priv->hw_read_event_cause = if_cs_read_event_cause;
-
- priv->adapter->fw_ready = 1;
+ priv->hw_host_to_card = if_cs_host_to_card;
+ priv->enter_deep_sleep = NULL;
+ priv->exit_deep_sleep = NULL;
+ priv->reset_deep_sleep_wakeup = NULL;
+ priv->fw_ready = 1;
/* Now actually get the IRQ */
ret = request_irq(p_dev->irq.AssignedIRQ, if_cs_interrupt,
goto out3;
}
+ /* Clear any interrupt cause that happend while sending
+ * firmware/initializing card */
+ if_cs_write16(card, IF_CS_CARD_INT_CAUSE, IF_CS_BIT_MASK);
if_cs_enable_ints(card);
/* And finally bring the card up */
- if (libertas_start_card(priv) != 0) {
+ if (lbs_start_card(priv) != 0) {
lbs_pr_err("could not activate card\n");
goto out3;
}
goto out;
out3:
- libertas_remove_card(priv);
+ lbs_remove_card(priv);
out2:
ioport_unmap(card->iobase);
out1:
lbs_deb_enter(LBS_DEB_CS);
- libertas_stop_card(card->priv);
- libertas_remove_card(card->priv);
+ lbs_stop_card(card->priv);
+ lbs_remove_card(card->priv);
if_cs_disable_ints(card);
if_cs_release(p_dev);
kfree(card);
/********************************************************************/
static struct pcmcia_device_id if_cs_ids[] = {
- PCMCIA_DEVICE_MANF_CARD(0x02df, 0x8103),
+ PCMCIA_DEVICE_MANF_CARD(CF8305_MANFID, CF8305_CARDID),
+ PCMCIA_DEVICE_MANF_CARD(CF8381_MANFID, CF8381_CARDID),
+ PCMCIA_DEVICE_MANF_CARD(CF8385_MANFID, CF8385_CARDID),
PCMCIA_DEVICE_NULL,
};
MODULE_DEVICE_TABLE(pcmcia, if_cs_ids);
-static struct pcmcia_driver libertas_driver = {
+static struct pcmcia_driver lbs_driver = {
.owner = THIS_MODULE,
.drv = {
.name = DRV_NAME,
int ret;
lbs_deb_enter(LBS_DEB_CS);
- ret = pcmcia_register_driver(&libertas_driver);
+ ret = pcmcia_register_driver(&lbs_driver);
lbs_deb_leave(LBS_DEB_CS);
return ret;
}
static void __exit if_cs_exit(void)
{
lbs_deb_enter(LBS_DEB_CS);
- pcmcia_unregister_driver(&libertas_driver);
+ pcmcia_unregister_driver(&lbs_driver);
lbs_deb_leave(LBS_DEB_CS);
}
git://ftp.safe.ca / safe / jmp / linux-2.6 / blobdiff