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;
60 struct lbs_private *priv;
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 < 1000; 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_POWER_DOWN 0x0008
174 #define IF_CS_H_IC_HOST_EVENT 0x0010
175 #define IF_CS_H_IC_MASK 0x001f
177 #define IF_CS_H_INT_MASK 0x00000004
178 #define IF_CS_H_IM_MASK 0x001f
180 #define IF_CS_H_WRITE_LEN 0x00000014
182 #define IF_CS_H_WRITE 0x00000016
184 #define IF_CS_H_CMD_LEN 0x00000018
186 #define IF_CS_H_CMD 0x0000001A
188 #define IF_CS_C_READ_LEN 0x00000024
190 #define IF_CS_H_READ 0x00000010
192 /* Card control registers and their bit definitions */
194 #define IF_CS_C_STATUS 0x00000020
195 #define IF_CS_C_S_TX_DNLD_RDY 0x0001
196 #define IF_CS_C_S_RX_UPLD_RDY 0x0002
197 #define IF_CS_C_S_CMD_DNLD_RDY 0x0004
198 #define IF_CS_C_S_CMD_UPLD_RDY 0x0008
199 #define IF_CS_C_S_CARDEVENT 0x0010
200 #define IF_CS_C_S_MASK 0x001f
201 #define IF_CS_C_S_STATUS_MASK 0x7f00
202 /* The following definitions should be the same as the MRVDRV_ ones */
204 #if MRVDRV_CMD_DNLD_RDY != IF_CS_C_S_CMD_DNLD_RDY
205 #error MRVDRV_CMD_DNLD_RDY and IF_CS_C_S_CMD_DNLD_RDY not in sync
207 #if MRVDRV_CMD_UPLD_RDY != IF_CS_C_S_CMD_UPLD_RDY
208 #error MRVDRV_CMD_UPLD_RDY and IF_CS_C_S_CMD_UPLD_RDY not in sync
210 #if MRVDRV_CARDEVENT != IF_CS_C_S_CARDEVENT
211 #error MRVDRV_CARDEVENT and IF_CS_C_S_CARDEVENT not in sync
214 #define IF_CS_C_INT_CAUSE 0x00000022
215 #define IF_CS_C_IC_MASK 0x001f
217 #define IF_CS_C_SQ_READ_LOW 0x00000028
218 #define IF_CS_C_SQ_HELPER_OK 0x10
220 #define IF_CS_C_CMD_LEN 0x00000030
222 #define IF_CS_C_CMD 0x00000012
224 #define IF_CS_SCRATCH 0x0000003F
228 /********************************************************************/
230 /********************************************************************/
232 static inline void if_cs_enable_ints(struct if_cs_card *card)
234 lbs_deb_enter(LBS_DEB_CS);
235 if_cs_write16(card, IF_CS_H_INT_MASK, 0);
238 static inline void if_cs_disable_ints(struct if_cs_card *card)
240 lbs_deb_enter(LBS_DEB_CS);
241 if_cs_write16(card, IF_CS_H_INT_MASK, IF_CS_H_IM_MASK);
244 static irqreturn_t if_cs_interrupt(int irq, void *data)
246 struct if_cs_card *card = data;
249 lbs_deb_enter(LBS_DEB_CS);
251 int_cause = if_cs_read16(card, IF_CS_C_INT_CAUSE);
252 if(int_cause == 0x0) {
256 } else if (int_cause == 0xffff) {
257 /* Read in junk, the card has probably been removed */
258 card->priv->surpriseremoved = 1;
261 if (int_cause & IF_CS_H_IC_TX_OVER)
262 lbs_host_to_card_done(card->priv);
264 /* clear interrupt */
265 if_cs_write16(card, IF_CS_C_INT_CAUSE, int_cause & IF_CS_C_IC_MASK);
267 spin_lock(&card->priv->driver_lock);
268 lbs_interrupt(card->priv);
269 spin_unlock(&card->priv->driver_lock);
277 /********************************************************************/
279 /********************************************************************/
282 * Called from if_cs_host_to_card to send a command to the hardware
284 static int if_cs_send_cmd(struct lbs_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(struct lbs_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(struct lbs_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 > LBS_CMD_BUFFER_SIZE)) {
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);
377 /* This is a workaround for a firmware that reports too much
382 lbs_deb_leave_args(LBS_DEB_CS, "ret %d, len %d", ret, *len);
387 static struct sk_buff *if_cs_receive_data(struct lbs_private *priv)
389 struct sk_buff *skb = NULL;
393 lbs_deb_enter(LBS_DEB_CS);
395 len = if_cs_read16(priv->card, IF_CS_C_READ_LEN);
396 if (len == 0 || len > MRVDRV_ETH_RX_PACKET_BUFFER_SIZE) {
397 lbs_pr_err("card data buffer has invalid # of bytes (%d)\n", len);
398 priv->stats.rx_dropped++;
399 printk(KERN_INFO "##HS %s:%d TODO\n", __FUNCTION__, __LINE__);
403 //TODO: skb = dev_alloc_skb(len+ETH_FRAME_LEN+MRVDRV_SNAP_HEADER_LEN+EXTRA_LEN);
404 skb = dev_alloc_skb(MRVDRV_ETH_RX_PACKET_BUFFER_SIZE + 2);
408 skb_reserve(skb, 2);/* 16 byte align */
411 /* read even number of bytes, then odd byte if necessary */
412 if_cs_read16_rep(priv->card, IF_CS_H_READ, data, len/sizeof(u16));
414 data[len-1] = if_cs_read8(priv->card, IF_CS_H_READ);
417 if_cs_write16(priv->card, IF_CS_H_STATUS, IF_CS_H_STATUS_RX_OVER);
418 if_cs_write16(priv->card, IF_CS_H_INT_CAUSE, IF_CS_H_IC_RX_OVER);
421 lbs_deb_leave_args(LBS_DEB_CS, "ret %p", skb);
427 /********************************************************************/
429 /********************************************************************/
432 * Tries to program the helper firmware.
434 * Return 0 on success
436 static int if_cs_prog_helper(struct if_cs_card *card)
441 const struct firmware *fw;
443 lbs_deb_enter(LBS_DEB_CS);
445 scratch = if_cs_read8(card, IF_CS_SCRATCH);
447 /* "If the value is 0x5a, the firmware is already
448 * downloaded successfully"
453 /* "If the value is != 00, it is invalid value of register */
454 if (scratch != 0x00) {
459 /* TODO: make firmware file configurable */
460 ret = request_firmware(&fw, "libertas_cs_helper.fw",
461 &handle_to_dev(card->p_dev));
463 lbs_pr_err("can't load helper firmware\n");
467 lbs_deb_cs("helper size %td\n", fw->size);
469 /* "Set the 5 bytes of the helper image to 0" */
470 /* Not needed, this contains an ARM branch instruction */
473 /* "the number of bytes to send is 256" */
475 int remain = fw->size - sent;
479 /* printk(KERN_INFO "//HS %d loading %d of %d bytes\n",
480 __LINE__, sent, fw->size); */
482 /* "write the number of bytes to be sent to the I/O Command
483 * write length register" */
484 if_cs_write16(card, IF_CS_H_CMD_LEN, count);
486 /* "write this to I/O Command port register as 16 bit writes */
488 if_cs_write16_rep(card, IF_CS_H_CMD,
492 /* "Assert the download over interrupt command in the Host
493 * status register" */
494 if_cs_write8(card, IF_CS_H_STATUS, IF_CS_H_STATUS_DNLD_OVER);
496 /* "Assert the download over interrupt command in the Card
497 * interrupt case register" */
498 if_cs_write16(card, IF_CS_H_INT_CAUSE, IF_CS_H_IC_DNLD_OVER);
500 /* "The host polls the Card Status register ... for 50 ms before
501 declaring a failure */
502 ret = if_cs_poll_while_fw_download(card, IF_CS_C_STATUS,
503 IF_CS_C_S_CMD_DNLD_RDY);
505 lbs_pr_err("can't download helper at 0x%x, ret %d\n",
516 release_firmware(fw);
520 lbs_deb_leave_args(LBS_DEB_CS, "ret %d", ret);
525 static int if_cs_prog_real(struct if_cs_card *card)
527 const struct firmware *fw;
533 lbs_deb_enter(LBS_DEB_CS);
535 /* TODO: make firmware file configurable */
536 ret = request_firmware(&fw, "libertas_cs.fw",
537 &handle_to_dev(card->p_dev));
539 lbs_pr_err("can't load firmware\n");
543 lbs_deb_cs("fw size %td\n", fw->size);
545 ret = if_cs_poll_while_fw_download(card, IF_CS_C_SQ_READ_LOW, IF_CS_C_SQ_HELPER_OK);
548 lbs_pr_err("helper firmware doesn't answer\n");
549 for (i = 0; i < 0x50; i += 2)
550 printk(KERN_INFO "## HS %02x: %04x\n",
551 i, if_cs_read16(card, i));
555 for (sent = 0; sent < fw->size; sent += len) {
556 len = if_cs_read16(card, IF_CS_C_SQ_READ_LOW);
557 /* printk(KERN_INFO "//HS %d loading %d of %d bytes\n",
558 __LINE__, sent, fw->size); */
561 lbs_pr_info("odd, need to retry this firmware block\n");
567 lbs_pr_err("could not download firmware\n");
576 if_cs_write16(card, IF_CS_H_CMD_LEN, len);
578 if_cs_write16_rep(card, IF_CS_H_CMD,
581 if_cs_write8(card, IF_CS_H_STATUS, IF_CS_H_STATUS_DNLD_OVER);
582 if_cs_write16(card, IF_CS_H_INT_CAUSE, IF_CS_H_IC_DNLD_OVER);
584 ret = if_cs_poll_while_fw_download(card, IF_CS_C_STATUS,
585 IF_CS_C_S_CMD_DNLD_RDY);
587 lbs_pr_err("can't download firmware at 0x%x\n", sent);
592 ret = if_cs_poll_while_fw_download(card, IF_CS_SCRATCH, 0x5a);
594 lbs_pr_err("firmware download failed\n");
603 release_firmware(fw);
606 lbs_deb_leave_args(LBS_DEB_CS, "ret %d", ret);
612 /********************************************************************/
613 /* Callback functions for libertas.ko */
614 /********************************************************************/
616 /* Send commands or data packets to the card */
617 static int if_cs_host_to_card(struct lbs_private *priv,
624 lbs_deb_enter_args(LBS_DEB_CS, "type %d, bytes %d", type, nb);
628 priv->dnld_sent = DNLD_DATA_SENT;
629 if_cs_send_data(priv, buf, nb);
633 priv->dnld_sent = DNLD_CMD_SENT;
634 ret = if_cs_send_cmd(priv, buf, nb);
637 lbs_pr_err("%s: unsupported type %d\n", __FUNCTION__, type);
640 lbs_deb_leave_args(LBS_DEB_CS, "ret %d", ret);
645 static int if_cs_get_int_status(struct lbs_private *priv, u8 *ireg)
647 struct if_cs_card *card = (struct if_cs_card *)priv->card;
652 lbs_deb_enter(LBS_DEB_CS);
654 if (priv->surpriseremoved)
657 int_cause = if_cs_read16(card, IF_CS_C_INT_CAUSE) & IF_CS_C_IC_MASK;
658 if_cs_write16(card, IF_CS_C_INT_CAUSE, int_cause);
660 *ireg = if_cs_read16(card, IF_CS_C_STATUS) & IF_CS_C_S_MASK;
663 goto sbi_get_int_status_exit;
665 sbi_get_int_status_exit:
667 /* is there a data packet for us? */
668 if (*ireg & IF_CS_C_S_RX_UPLD_RDY) {
669 struct sk_buff *skb = if_cs_receive_data(priv);
670 lbs_process_rxed_packet(priv, skb);
671 *ireg &= ~IF_CS_C_S_RX_UPLD_RDY;
674 if (*ireg & IF_CS_C_S_TX_DNLD_RDY) {
675 priv->dnld_sent = DNLD_RES_RECEIVED;
678 /* Card has a command result for us */
679 if (*ireg & IF_CS_C_S_CMD_UPLD_RDY) {
680 spin_lock(&priv->driver_lock);
681 ret = if_cs_receive_cmdres(priv, priv->upld_buf, &priv->upld_len);
682 spin_unlock(&priv->driver_lock);
684 lbs_pr_err("could not receive cmd from card\n");
688 lbs_deb_leave_args(LBS_DEB_CS, "ret %d, ireg 0x%x, hisregcpy 0x%x", ret, *ireg, priv->hisregcpy);
693 static int if_cs_read_event_cause(struct lbs_private *priv)
695 lbs_deb_enter(LBS_DEB_CS);
697 priv->eventcause = (if_cs_read16(priv->card, IF_CS_C_STATUS) & IF_CS_C_S_STATUS_MASK) >> 5;
698 if_cs_write16(priv->card, IF_CS_H_INT_CAUSE, IF_CS_H_IC_HOST_EVENT);
705 /********************************************************************/
707 /********************************************************************/
710 * After a card is removed, if_cs_release() will unregister the
711 * device, and release the PCMCIA configuration. If the device is
712 * still open, this will be postponed until it is closed.
714 static void if_cs_release(struct pcmcia_device *p_dev)
716 struct if_cs_card *card = p_dev->priv;
718 lbs_deb_enter(LBS_DEB_CS);
720 pcmcia_disable_device(p_dev);
721 free_irq(p_dev->irq.AssignedIRQ, card);
723 ioport_unmap(card->iobase);
725 lbs_deb_leave(LBS_DEB_CS);
730 * This creates an "instance" of the driver, allocating local data
731 * structures for one device. The device is registered with Card
734 * The dev_link structure is initialized, but we don't actually
735 * configure the card at this point -- we wait until we receive a card
738 static int if_cs_probe(struct pcmcia_device *p_dev)
741 struct lbs_private *priv;
742 struct if_cs_card *card;
746 cistpl_cftable_entry_t *cfg = &parse.cftable_entry;
747 cistpl_io_t *io = &cfg->io;
750 lbs_deb_enter(LBS_DEB_CS);
752 card = kzalloc(sizeof(struct if_cs_card), GFP_KERNEL);
754 lbs_pr_err("error in kzalloc\n");
760 p_dev->irq.Attributes = IRQ_TYPE_DYNAMIC_SHARING;
761 p_dev->irq.Handler = NULL;
762 p_dev->irq.IRQInfo1 = IRQ_INFO2_VALID | IRQ_LEVEL_ID;
764 p_dev->conf.Attributes = 0;
765 p_dev->conf.IntType = INT_MEMORY_AND_IO;
767 tuple.Attributes = 0;
768 tuple.TupleData = buf;
769 tuple.TupleDataMax = sizeof(buf);
770 tuple.TupleOffset = 0;
772 tuple.DesiredTuple = CISTPL_CFTABLE_ENTRY;
773 if ((ret = pcmcia_get_first_tuple(p_dev, &tuple)) != 0 ||
774 (ret = pcmcia_get_tuple_data(p_dev, &tuple)) != 0 ||
775 (ret = pcmcia_parse_tuple(p_dev, &tuple, &parse)) != 0)
777 lbs_pr_err("error in pcmcia_get_first_tuple etc\n");
781 p_dev->conf.ConfigIndex = cfg->index;
783 /* Do we need to allocate an interrupt? */
784 if (cfg->irq.IRQInfo1) {
785 p_dev->conf.Attributes |= CONF_ENABLE_IRQ;
788 /* IO window settings */
789 if (cfg->io.nwin != 1) {
790 lbs_pr_err("wrong CIS (check number of IO windows)\n");
794 p_dev->io.Attributes1 = IO_DATA_PATH_WIDTH_AUTO;
795 p_dev->io.BasePort1 = io->win[0].base;
796 p_dev->io.NumPorts1 = io->win[0].len;
798 /* This reserves IO space but doesn't actually enable it */
799 ret = pcmcia_request_io(p_dev, &p_dev->io);
801 lbs_pr_err("error in pcmcia_request_io\n");
806 * Allocate an interrupt line. Note that this does not assign
807 * a handler to the interrupt, unless the 'Handler' member of
808 * the irq structure is initialized.
810 if (p_dev->conf.Attributes & CONF_ENABLE_IRQ) {
811 ret = pcmcia_request_irq(p_dev, &p_dev->irq);
813 lbs_pr_err("error in pcmcia_request_irq\n");
818 /* Initialize io access */
819 card->iobase = ioport_map(p_dev->io.BasePort1, p_dev->io.NumPorts1);
821 lbs_pr_err("error in ioport_map\n");
827 * This actually configures the PCMCIA socket -- setting up
828 * the I/O windows and the interrupt mapping, and putting the
829 * card and host interface into "Memory and IO" mode.
831 ret = pcmcia_request_configuration(p_dev, &p_dev->conf);
833 lbs_pr_err("error in pcmcia_request_configuration\n");
837 /* Finally, report what we've done */
838 lbs_deb_cs("irq %d, io 0x%04x-0x%04x\n",
839 p_dev->irq.AssignedIRQ, p_dev->io.BasePort1,
840 p_dev->io.BasePort1 + p_dev->io.NumPorts1 - 1);
843 /* Load the firmware early, before calling into libertas.ko */
844 ret = if_cs_prog_helper(card);
846 ret = if_cs_prog_real(card);
850 /* Make this card known to the libertas driver */
851 priv = lbs_add_card(card, &p_dev->dev);
857 /* Store pointers to our call-back functions */
860 priv->hw_host_to_card = if_cs_host_to_card;
861 priv->hw_get_int_status = if_cs_get_int_status;
862 priv->hw_read_event_cause = if_cs_read_event_cause;
866 /* Now actually get the IRQ */
867 ret = request_irq(p_dev->irq.AssignedIRQ, if_cs_interrupt,
868 IRQF_SHARED, DRV_NAME, card);
870 lbs_pr_err("error in request_irq\n");
874 /* Clear any interrupt cause that happend while sending
875 * firmware/initializing card */
876 if_cs_write16(card, IF_CS_C_INT_CAUSE, IF_CS_C_IC_MASK);
877 if_cs_enable_ints(card);
879 /* And finally bring the card up */
880 if (lbs_start_card(priv) != 0) {
881 lbs_pr_err("could not activate card\n");
889 lbs_remove_card(priv);
891 ioport_unmap(card->iobase);
893 pcmcia_disable_device(p_dev);
895 lbs_deb_leave_args(LBS_DEB_CS, "ret %d", ret);
901 * This deletes a driver "instance". The device is de-registered with
902 * Card Services. If it has been released, all local data structures
903 * are freed. Otherwise, the structures will be freed when the device
906 static void if_cs_detach(struct pcmcia_device *p_dev)
908 struct if_cs_card *card = p_dev->priv;
910 lbs_deb_enter(LBS_DEB_CS);
912 lbs_stop_card(card->priv);
913 lbs_remove_card(card->priv);
914 if_cs_disable_ints(card);
915 if_cs_release(p_dev);
918 lbs_deb_leave(LBS_DEB_CS);
923 /********************************************************************/
924 /* Module initialization */
925 /********************************************************************/
927 static struct pcmcia_device_id if_cs_ids[] = {
928 PCMCIA_DEVICE_MANF_CARD(0x02df, 0x8103),
931 MODULE_DEVICE_TABLE(pcmcia, if_cs_ids);
934 static struct pcmcia_driver lbs_driver = {
935 .owner = THIS_MODULE,
939 .probe = if_cs_probe,
940 .remove = if_cs_detach,
941 .id_table = if_cs_ids,
945 static int __init if_cs_init(void)
949 lbs_deb_enter(LBS_DEB_CS);
950 ret = pcmcia_register_driver(&lbs_driver);
951 lbs_deb_leave(LBS_DEB_CS);
956 static void __exit if_cs_exit(void)
958 lbs_deb_enter(LBS_DEB_CS);
959 pcmcia_unregister_driver(&lbs_driver);
960 lbs_deb_leave(LBS_DEB_CS);
964 module_init(if_cs_init);
965 module_exit(if_cs_exit);