3 Driver for the Marvell 8385 based compact flash WLAN cards.
5 (C) 2007 by Holger Schurig <hs4233@mail.mn-solutions.de>
7 This program is free software; you can redistribute it and/or modify
8 it under the terms of the GNU General Public License as published by
9 the Free Software Foundation; either version 2 of the License, or
10 (at your option) any later version.
12 This program is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 GNU General Public License for more details.
17 You should have received a copy of the GNU General Public License
18 along with this program; see the file COPYING. If not, write to
19 the Free Software Foundation, Inc., 51 Franklin Steet, Fifth Floor,
20 Boston, MA 02110-1301, USA.
24 #include <linux/module.h>
25 #include <linux/delay.h>
26 #include <linux/moduleparam.h>
27 #include <linux/firmware.h>
28 #include <linux/netdevice.h>
30 #include <pcmcia/cs_types.h>
31 #include <pcmcia/cs.h>
32 #include <pcmcia/cistpl.h>
33 #include <pcmcia/ds.h>
37 #define DRV_NAME "libertas_cs"
44 /********************************************************************/
46 /********************************************************************/
48 MODULE_AUTHOR("Holger Schurig <hs4233@mail.mn-solutions.de>");
49 MODULE_DESCRIPTION("Driver for Marvell 83xx compact flash WLAN cards");
50 MODULE_LICENSE("GPL");
54 /********************************************************************/
56 /********************************************************************/
59 struct pcmcia_device *p_dev;
66 /********************************************************************/
68 /********************************************************************/
70 /* This define enables wrapper functions which allow you
71 to dump all register accesses. You normally won't this,
72 except for development */
73 /* #define DEBUG_IO */
76 static int debug_output = 0;
78 /* This way the compiler optimizes the printk's away */
79 #define debug_output 0
82 static inline unsigned int if_cs_read8(struct if_cs_card *card, uint reg)
84 unsigned int val = ioread8(card->iobase + reg);
86 printk(KERN_INFO "##inb %08x<%02x\n", reg, val);
89 static inline unsigned int if_cs_read16(struct if_cs_card *card, uint reg)
91 unsigned int val = ioread16(card->iobase + reg);
93 printk(KERN_INFO "##inw %08x<%04x\n", reg, val);
96 static inline void if_cs_read16_rep(
97 struct if_cs_card *card,
103 printk(KERN_INFO "##insw %08x<(0x%lx words)\n",
105 ioread16_rep(card->iobase + reg, buf, count);
108 static inline void if_cs_write8(struct if_cs_card *card, uint reg, u8 val)
111 printk(KERN_INFO "##outb %08x>%02x\n", reg, val);
112 iowrite8(val, card->iobase + reg);
115 static inline void if_cs_write16(struct if_cs_card *card, uint reg, u16 val)
118 printk(KERN_INFO "##outw %08x>%04x\n", reg, val);
119 iowrite16(val, card->iobase + reg);
122 static inline void if_cs_write16_rep(
123 struct if_cs_card *card,
129 printk(KERN_INFO "##outsw %08x>(0x%lx words)\n",
131 iowrite16_rep(card->iobase + reg, buf, count);
136 * I know that polling/delaying is frowned upon. However, this procedure
137 * with polling is needed while downloading the firmware. At this stage,
138 * the hardware does unfortunately not create any interrupts.
140 * Fortunately, this function is never used once the firmware is in
143 * As a reference, see the "Firmware Specification v5.1", page 18
144 * and 19. I did not follow their suggested timing to the word,
145 * but this works nice & fast anyway.
147 static int if_cs_poll_while_fw_download(struct if_cs_card *card, uint addr, u8 reg)
151 for (i = 0; i < 500; i++) {
152 u8 val = if_cs_read8(card, addr);
162 /* Host control registers and their bit definitions */
164 #define IF_CS_H_STATUS 0x00000000
165 #define IF_CS_H_STATUS_TX_OVER 0x0001
166 #define IF_CS_H_STATUS_RX_OVER 0x0002
167 #define IF_CS_H_STATUS_DNLD_OVER 0x0004
169 #define IF_CS_H_INT_CAUSE 0x00000002
170 #define IF_CS_H_IC_TX_OVER 0x0001
171 #define IF_CS_H_IC_RX_OVER 0x0002
172 #define IF_CS_H_IC_DNLD_OVER 0x0004
173 #define IF_CS_H_IC_HOST_EVENT 0x0008
174 #define IF_CS_H_IC_MASK 0x001f
176 #define IF_CS_H_INT_MASK 0x00000004
177 #define IF_CS_H_IM_MASK 0x001f
179 #define IF_CS_H_WRITE_LEN 0x00000014
181 #define IF_CS_H_WRITE 0x00000016
183 #define IF_CS_H_CMD_LEN 0x00000018
185 #define IF_CS_H_CMD 0x0000001A
187 #define IF_CS_C_READ_LEN 0x00000024
189 #define IF_CS_H_READ 0x00000010
191 /* Card control registers and their bit definitions */
193 #define IF_CS_C_STATUS 0x00000020
194 #define IF_CS_C_S_TX_DNLD_RDY 0x0001
195 #define IF_CS_C_S_RX_UPLD_RDY 0x0002
196 #define IF_CS_C_S_CMD_DNLD_RDY 0x0004
197 #define IF_CS_C_S_CMD_UPLD_RDY 0x0008
198 #define IF_CS_C_S_CARDEVENT 0x0010
199 #define IF_CS_C_S_MASK 0x001f
200 #define IF_CS_C_S_STATUS_MASK 0x7f00
201 /* The following definitions should be the same as the MRVDRV_ ones */
203 #if MRVDRV_CMD_DNLD_RDY != IF_CS_C_S_CMD_DNLD_RDY
204 #error MRVDRV_CMD_DNLD_RDY and IF_CS_C_S_CMD_DNLD_RDY not in sync
206 #if MRVDRV_CMD_UPLD_RDY != IF_CS_C_S_CMD_UPLD_RDY
207 #error MRVDRV_CMD_UPLD_RDY and IF_CS_C_S_CMD_UPLD_RDY not in sync
209 #if MRVDRV_CARDEVENT != IF_CS_C_S_CARDEVENT
210 #error MRVDRV_CARDEVENT and IF_CS_C_S_CARDEVENT not in sync
213 #define IF_CS_C_INT_CAUSE 0x00000022
214 #define IF_CS_C_IC_MASK 0x001f
216 #define IF_CS_C_SQ_READ_LOW 0x00000028
217 #define IF_CS_C_SQ_HELPER_OK 0x10
219 #define IF_CS_C_CMD_LEN 0x00000030
221 #define IF_CS_C_CMD 0x00000012
223 #define IF_CS_SCRATCH 0x0000003F
227 /********************************************************************/
229 /********************************************************************/
231 static inline void if_cs_enable_ints(struct if_cs_card *card)
233 lbs_deb_enter(LBS_DEB_CS);
234 if_cs_write16(card, IF_CS_H_INT_MASK, 0);
237 static inline void if_cs_disable_ints(struct if_cs_card *card)
239 lbs_deb_enter(LBS_DEB_CS);
240 if_cs_write16(card, IF_CS_H_INT_MASK, IF_CS_H_IM_MASK);
243 static irqreturn_t if_cs_interrupt(int irq, void *data)
245 struct if_cs_card *card = (struct if_cs_card *)data;
248 lbs_deb_enter(LBS_DEB_CS);
250 int_cause = if_cs_read16(card, IF_CS_C_INT_CAUSE);
256 /* if one reads junk, then probably the card was removed */
257 card->priv->adapter->surpriseremoved = 1;
259 case IF_CS_H_IC_TX_OVER:
260 if (card->priv->adapter->connect_status == LIBERTAS_CONNECTED)
261 netif_wake_queue(card->priv->dev);
264 /* clear interrupt */
265 if_cs_write16(card, IF_CS_C_INT_CAUSE, int_cause & IF_CS_C_IC_MASK);
266 if_cs_disable_ints(card);
269 libertas_interrupt(card->priv->dev);
277 /********************************************************************/
279 /********************************************************************/
282 * Called from if_cs_host_to_card to send a command to the hardware
284 static int if_cs_send_cmd(wlan_private *priv, u8 *buf, u16 nb)
286 struct if_cs_card *card = (struct if_cs_card *)priv->card;
290 lbs_deb_enter(LBS_DEB_CS);
292 /* Is hardware ready? */
294 u16 val = if_cs_read16(card, IF_CS_C_STATUS);
295 if (val & IF_CS_C_S_CMD_DNLD_RDY)
298 lbs_pr_err("card not ready for commands\n");
304 if_cs_write16(card, IF_CS_H_CMD_LEN, nb);
306 if_cs_write16_rep(card, IF_CS_H_CMD, buf, nb / 2);
307 /* Are we supposed to transfer an odd amount of bytes? */
309 if_cs_write8(card, IF_CS_H_CMD, buf[nb-1]);
311 /* "Assert the download over interrupt command in the Host
312 * status register" */
313 if_cs_write16(card, IF_CS_H_STATUS, IF_CS_H_STATUS_DNLD_OVER);
315 /* "Assert the download over interrupt command in the Card
316 * interrupt case register" */
317 if_cs_write16(card, IF_CS_H_INT_CAUSE, IF_CS_H_IC_DNLD_OVER);
321 lbs_deb_leave_args(LBS_DEB_CS, "ret %d", ret);
327 * Called from if_cs_host_to_card to send a data to the hardware
329 static void if_cs_send_data(wlan_private *priv, u8 *buf, u16 nb)
331 struct if_cs_card *card = (struct if_cs_card *)priv->card;
333 lbs_deb_enter(LBS_DEB_CS);
335 if_cs_write16(card, IF_CS_H_WRITE_LEN, nb);
337 /* write even number of bytes, then odd byte if necessary */
338 if_cs_write16_rep(card, IF_CS_H_WRITE, buf, nb / 2);
340 if_cs_write8(card, IF_CS_H_WRITE, buf[nb-1]);
342 if_cs_write16(card, IF_CS_H_STATUS, IF_CS_H_STATUS_TX_OVER);
343 if_cs_write16(card, IF_CS_H_INT_CAUSE, IF_CS_H_STATUS_TX_OVER);
345 lbs_deb_leave(LBS_DEB_CS);
350 * Get the command result out of the card.
352 static int if_cs_receive_cmdres(wlan_private *priv, u8* data, u32 *len)
357 lbs_deb_enter(LBS_DEB_CS);
359 /* is hardware ready? */
360 val = if_cs_read16(priv->card, IF_CS_C_STATUS);
361 if ((val & IF_CS_C_S_CMD_UPLD_RDY) == 0) {
362 lbs_pr_err("card not ready for CMD\n");
366 *len = if_cs_read16(priv->card, IF_CS_C_CMD_LEN);
367 if ((*len == 0) || (*len > MRVDRV_SIZE_OF_CMD_BUFFER)) {
368 lbs_pr_err("card cmd buffer has invalid # of bytes (%d)\n", *len);
372 /* read even number of bytes, then odd byte if necessary */
373 if_cs_read16_rep(priv->card, IF_CS_C_CMD, data, *len/sizeof(u16));
375 data[*len-1] = if_cs_read8(priv->card, IF_CS_C_CMD);
379 lbs_deb_leave_args(LBS_DEB_CS, "ret %d, len %d", ret, *len);
384 static struct sk_buff *if_cs_receive_data(wlan_private *priv)
386 struct sk_buff *skb = NULL;
390 lbs_deb_enter(LBS_DEB_CS);
392 len = if_cs_read16(priv->card, IF_CS_C_READ_LEN);
393 if (len == 0 || len > MRVDRV_ETH_RX_PACKET_BUFFER_SIZE) {
394 lbs_pr_err("card data buffer has invalid # of bytes (%d)\n", len);
395 priv->stats.rx_dropped++;
396 printk(KERN_INFO "##HS %s:%d TODO\n", __FUNCTION__, __LINE__);
400 //TODO: skb = dev_alloc_skb(len+ETH_FRAME_LEN+MRVDRV_SNAP_HEADER_LEN+EXTRA_LEN);
401 skb = dev_alloc_skb(MRVDRV_ETH_RX_PACKET_BUFFER_SIZE);
404 data = skb_put(skb, len);
406 /* read even number of bytes, then odd byte if necessary */
407 if_cs_read16_rep(priv->card, IF_CS_H_READ, data, len/sizeof(u16));
409 data[len-1] = if_cs_read8(priv->card, IF_CS_H_READ);
412 if_cs_write16(priv->card, IF_CS_H_STATUS, IF_CS_H_STATUS_RX_OVER);
413 if_cs_write16(priv->card, IF_CS_H_INT_CAUSE, IF_CS_H_IC_RX_OVER);
416 lbs_deb_leave_args(LBS_DEB_CS, "ret %p", skb);
422 /********************************************************************/
424 /********************************************************************/
427 * Tries to program the helper firmware.
429 * Return 0 on success
431 static int if_cs_prog_helper(struct if_cs_card *card)
436 const struct firmware *fw;
438 lbs_deb_enter(LBS_DEB_CS);
440 scratch = if_cs_read8(card, IF_CS_SCRATCH);
442 /* "If the value is 0x5a, the firmware is already
443 * downloaded successfully"
448 /* "If the value is != 00, it is invalid value of register */
449 if (scratch != 0x00) {
454 /* TODO: make firmware file configurable */
455 ret = request_firmware(&fw, "libertas_cs_helper.fw",
456 &handle_to_dev(card->p_dev));
458 lbs_pr_err("can't load helper firmware\n");
462 lbs_deb_cs("helper size %td\n", fw->size);
464 /* "Set the 5 bytes of the helper image to 0" */
465 /* Not needed, this contains an ARM branch instruction */
468 /* "the number of bytes to send is 256" */
470 int remain = fw->size - sent;
474 /* printk(KERN_INFO "//HS %d loading %d of %d bytes\n",
475 __LINE__, sent, fw->size); */
477 /* "write the number of bytes to be sent to the I/O Command
478 * write length register" */
479 if_cs_write16(card, IF_CS_H_CMD_LEN, count);
481 /* "write this to I/O Command port register as 16 bit writes */
483 if_cs_write16_rep(card, IF_CS_H_CMD,
487 /* "Assert the download over interrupt command in the Host
488 * status register" */
489 if_cs_write8(card, IF_CS_H_STATUS, IF_CS_H_STATUS_DNLD_OVER);
491 /* "Assert the download over interrupt command in the Card
492 * interrupt case register" */
493 if_cs_write16(card, IF_CS_H_INT_CAUSE, IF_CS_H_IC_DNLD_OVER);
495 /* "The host polls the Card Status register ... for 50 ms before
496 declaring a failure */
497 ret = if_cs_poll_while_fw_download(card, IF_CS_C_STATUS,
498 IF_CS_C_S_CMD_DNLD_RDY);
500 lbs_pr_err("can't download helper at 0x%x, ret %d\n",
511 release_firmware(fw);
515 lbs_deb_leave_args(LBS_DEB_CS, "ret %d", ret);
520 static int if_cs_prog_real(struct if_cs_card *card)
522 const struct firmware *fw;
528 lbs_deb_enter(LBS_DEB_CS);
530 /* TODO: make firmware file configurable */
531 ret = request_firmware(&fw, "libertas_cs.fw",
532 &handle_to_dev(card->p_dev));
534 lbs_pr_err("can't load firmware\n");
538 lbs_deb_cs("fw size %td\n", fw->size);
540 ret = if_cs_poll_while_fw_download(card, IF_CS_C_SQ_READ_LOW, IF_CS_C_SQ_HELPER_OK);
543 lbs_pr_err("helper firmware doesn't answer\n");
544 for (i = 0; i < 0x50; i += 2)
545 printk(KERN_INFO "## HS %02x: %04x\n",
546 i, if_cs_read16(card, i));
550 for (sent = 0; sent < fw->size; sent += len) {
551 len = if_cs_read16(card, IF_CS_C_SQ_READ_LOW);
552 /* printk(KERN_INFO "//HS %d loading %d of %d bytes\n",
553 __LINE__, sent, fw->size); */
556 lbs_pr_info("odd, need to retry this firmware block\n");
562 lbs_pr_err("could not download firmware\n");
571 if_cs_write16(card, IF_CS_H_CMD_LEN, len);
573 if_cs_write16_rep(card, IF_CS_H_CMD,
576 if_cs_write8(card, IF_CS_H_STATUS, IF_CS_H_STATUS_DNLD_OVER);
577 if_cs_write16(card, IF_CS_H_INT_CAUSE, IF_CS_H_IC_DNLD_OVER);
579 ret = if_cs_poll_while_fw_download(card, IF_CS_C_STATUS,
580 IF_CS_C_S_CMD_DNLD_RDY);
582 lbs_pr_err("can't download firmware at 0x%x\n", sent);
587 ret = if_cs_poll_while_fw_download(card, IF_CS_SCRATCH, 0x5a);
589 lbs_pr_err("firmware download failed\n");
598 release_firmware(fw);
601 lbs_deb_leave_args(LBS_DEB_CS, "ret %d", ret);
607 /********************************************************************/
608 /* Callback functions for libertas.ko */
609 /********************************************************************/
611 /* Send commands or data packets to the card */
612 static int if_cs_host_to_card(wlan_private *priv, u8 type, u8 *buf, u16 nb)
616 lbs_deb_enter_args(LBS_DEB_CS, "type %d, bytes %d", type, nb);
620 priv->dnld_sent = DNLD_DATA_SENT;
621 if_cs_send_data(priv, buf, nb);
625 priv->dnld_sent = DNLD_CMD_SENT;
626 ret = if_cs_send_cmd(priv, buf, nb);
629 lbs_pr_err("%s: unsupported type %d\n", __FUNCTION__, type);
632 lbs_deb_leave_args(LBS_DEB_CS, "ret %d", ret);
637 static int if_cs_get_int_status(wlan_private *priv, u8 *ireg)
639 struct if_cs_card *card = (struct if_cs_card *)priv->card;
640 //wlan_adapter *adapter = priv->adapter;
646 lbs_deb_enter(LBS_DEB_CS);
648 if (priv->adapter->surpriseremoved)
651 int_cause = if_cs_read16(card, IF_CS_C_INT_CAUSE) & IF_CS_C_IC_MASK;
652 if_cs_write16(card, IF_CS_C_INT_CAUSE, int_cause);
654 *ireg = if_cs_read16(card, IF_CS_C_STATUS) & IF_CS_C_S_MASK;
655 if_cs_enable_ints(card);
658 goto sbi_get_int_status_exit;
660 sbi_get_int_status_exit:
662 /* is there a data packet for us? */
663 if (*ireg & IF_CS_C_S_RX_UPLD_RDY) {
664 struct sk_buff *skb = if_cs_receive_data(priv);
665 libertas_process_rxed_packet(priv, skb);
666 *ireg &= ~IF_CS_C_S_RX_UPLD_RDY;
669 if (*ireg & IF_CS_C_S_TX_DNLD_RDY) {
670 priv->dnld_sent = DNLD_RES_RECEIVED;
673 /* Card has a command result for us */
674 if (*ireg & IF_CS_C_S_CMD_UPLD_RDY) {
675 spin_lock(&priv->adapter->driver_lock);
676 if (!priv->adapter->cur_cmd) {
677 cmdbuf = priv->upld_buf;
678 priv->adapter->hisregcpy &= ~IF_CS_C_S_RX_UPLD_RDY;
680 cmdbuf = priv->adapter->cur_cmd->bufvirtualaddr;
683 ret = if_cs_receive_cmdres(priv, cmdbuf, &priv->upld_len);
684 spin_unlock(&priv->adapter->driver_lock);
686 lbs_pr_err("could not receive cmd from card\n");
690 lbs_deb_leave_args(LBS_DEB_CS, "ret %d, ireg 0x%x, hisregcpy 0x%x", ret, *ireg, priv->adapter->hisregcpy);
695 static int if_cs_read_event_cause(wlan_private *priv)
697 lbs_deb_enter(LBS_DEB_CS);
699 priv->adapter->eventcause = (if_cs_read16(priv->card, IF_CS_C_STATUS) & IF_CS_C_S_STATUS_MASK) >> 5;
700 if_cs_write16(priv->card, IF_CS_H_INT_CAUSE, IF_CS_H_IC_HOST_EVENT);
707 /********************************************************************/
709 /********************************************************************/
712 * After a card is removed, if_cs_release() will unregister the
713 * device, and release the PCMCIA configuration. If the device is
714 * still open, this will be postponed until it is closed.
716 static void if_cs_release(struct pcmcia_device *p_dev)
718 struct if_cs_card *card = p_dev->priv;
720 lbs_deb_enter(LBS_DEB_CS);
722 pcmcia_disable_device(p_dev);
723 free_irq(p_dev->irq.AssignedIRQ, card);
725 ioport_unmap(card->iobase);
727 lbs_deb_leave(LBS_DEB_CS);
732 * This creates an "instance" of the driver, allocating local data
733 * structures for one device. The device is registered with Card
736 * The dev_link structure is initialized, but we don't actually
737 * configure the card at this point -- we wait until we receive a card
740 static int if_cs_probe(struct pcmcia_device *p_dev)
744 struct if_cs_card *card;
748 cistpl_cftable_entry_t *cfg = &parse.cftable_entry;
749 cistpl_io_t *io = &cfg->io;
752 lbs_deb_enter(LBS_DEB_CS);
754 card = kzalloc(sizeof(struct if_cs_card), GFP_KERNEL);
756 lbs_pr_err("error in kzalloc\n");
762 p_dev->irq.Attributes = IRQ_TYPE_DYNAMIC_SHARING;
763 p_dev->irq.Handler = NULL;
764 p_dev->irq.IRQInfo1 = IRQ_INFO2_VALID | IRQ_LEVEL_ID;
766 p_dev->conf.Attributes = 0;
767 p_dev->conf.IntType = INT_MEMORY_AND_IO;
769 tuple.Attributes = 0;
770 tuple.TupleData = buf;
771 tuple.TupleDataMax = sizeof(buf);
772 tuple.TupleOffset = 0;
774 tuple.DesiredTuple = CISTPL_CFTABLE_ENTRY;
775 if ((ret = pcmcia_get_first_tuple(p_dev, &tuple)) != 0 ||
776 (ret = pcmcia_get_tuple_data(p_dev, &tuple)) != 0 ||
777 (ret = pcmcia_parse_tuple(p_dev, &tuple, &parse)) != 0)
779 lbs_pr_err("error in pcmcia_get_first_tuple etc\n");
783 p_dev->conf.ConfigIndex = cfg->index;
785 /* Do we need to allocate an interrupt? */
786 if (cfg->irq.IRQInfo1) {
787 p_dev->conf.Attributes |= CONF_ENABLE_IRQ;
790 /* IO window settings */
791 if (cfg->io.nwin != 1) {
792 lbs_pr_err("wrong CIS (check number of IO windows)\n");
796 p_dev->io.Attributes1 = IO_DATA_PATH_WIDTH_AUTO;
797 p_dev->io.BasePort1 = io->win[0].base;
798 p_dev->io.NumPorts1 = io->win[0].len;
800 /* This reserves IO space but doesn't actually enable it */
801 ret = pcmcia_request_io(p_dev, &p_dev->io);
803 lbs_pr_err("error in pcmcia_request_io\n");
808 * Allocate an interrupt line. Note that this does not assign
809 * a handler to the interrupt, unless the 'Handler' member of
810 * the irq structure is initialized.
812 if (p_dev->conf.Attributes & CONF_ENABLE_IRQ) {
813 ret = pcmcia_request_irq(p_dev, &p_dev->irq);
815 lbs_pr_err("error in pcmcia_request_irq\n");
820 /* Initialize io access */
821 card->iobase = ioport_map(p_dev->io.BasePort1, p_dev->io.NumPorts1);
823 lbs_pr_err("error in ioport_map\n");
829 * This actually configures the PCMCIA socket -- setting up
830 * the I/O windows and the interrupt mapping, and putting the
831 * card and host interface into "Memory and IO" mode.
833 ret = pcmcia_request_configuration(p_dev, &p_dev->conf);
835 lbs_pr_err("error in pcmcia_request_configuration\n");
839 /* Finally, report what we've done */
840 lbs_deb_cs("irq %d, io 0x%04x-0x%04x\n",
841 p_dev->irq.AssignedIRQ, p_dev->io.BasePort1,
842 p_dev->io.BasePort1 + p_dev->io.NumPorts1 - 1);
844 if_cs_enable_ints(card);
846 /* Load the firmware early, before calling into libertas.ko */
847 ret = if_cs_prog_helper(card);
849 ret = if_cs_prog_real(card);
853 /* Make this card known to the libertas driver */
854 priv = libertas_add_card(card, &p_dev->dev);
860 /* Store pointers to our call-back functions */
863 priv->hw_host_to_card = if_cs_host_to_card;
864 priv->hw_get_int_status = if_cs_get_int_status;
865 priv->hw_read_event_cause = if_cs_read_event_cause;
867 priv->adapter->fw_ready = 1;
869 /* Now actually get the IRQ */
870 ret = request_irq(p_dev->irq.AssignedIRQ, if_cs_interrupt,
871 IRQF_SHARED, DRV_NAME, card);
873 lbs_pr_err("error in request_irq\n");
877 /* And finally bring the card up */
878 if (libertas_start_card(priv) != 0) {
879 lbs_pr_err("could not activate card\n");
887 libertas_remove_card(priv);
889 ioport_unmap(card->iobase);
891 pcmcia_disable_device(p_dev);
893 lbs_deb_leave_args(LBS_DEB_CS, "ret %d", ret);
899 * This deletes a driver "instance". The device is de-registered with
900 * Card Services. If it has been released, all local data structures
901 * are freed. Otherwise, the structures will be freed when the device
904 static void if_cs_detach(struct pcmcia_device *p_dev)
906 struct if_cs_card *card = p_dev->priv;
908 lbs_deb_enter(LBS_DEB_CS);
910 libertas_stop_card(card->priv);
911 libertas_remove_card(card->priv);
912 if_cs_release(p_dev);
915 lbs_deb_leave(LBS_DEB_CS);
920 /********************************************************************/
921 /* Module initialization */
922 /********************************************************************/
924 static struct pcmcia_device_id if_cs_ids[] = {
925 PCMCIA_DEVICE_MANF_CARD(0x02df, 0x8103),
928 MODULE_DEVICE_TABLE(pcmcia, if_cs_ids);
931 static struct pcmcia_driver libertas_driver = {
932 .owner = THIS_MODULE,
936 .probe = if_cs_probe,
937 .remove = if_cs_detach,
938 .id_table = if_cs_ids,
942 static int __init if_cs_init(void)
946 lbs_deb_enter(LBS_DEB_CS);
947 ret = pcmcia_register_driver(&libertas_driver);
948 lbs_deb_leave(LBS_DEB_CS);
953 static void __exit if_cs_exit(void)
955 lbs_deb_enter(LBS_DEB_CS);
956 pcmcia_unregister_driver(&libertas_driver);
957 lbs_deb_leave(LBS_DEB_CS);
961 module_init(if_cs_init);
962 module_exit(if_cs_exit);