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 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
26 #include <linux/module.h>
27 #include <linux/slab.h>
28 #include <linux/delay.h>
29 #include <linux/moduleparam.h>
30 #include <linux/firmware.h>
31 #include <linux/netdevice.h>
33 #include <pcmcia/cistpl.h>
34 #include <pcmcia/ds.h>
38 #define DRV_NAME "libertas_cs"
45 /********************************************************************/
47 /********************************************************************/
49 MODULE_AUTHOR("Holger Schurig <hs4233@mail.mn-solutions.de>");
50 MODULE_DESCRIPTION("Driver for Marvell 83xx compact flash WLAN cards");
51 MODULE_LICENSE("GPL");
55 /********************************************************************/
57 /********************************************************************/
60 struct pcmcia_device *p_dev;
61 struct lbs_private *priv;
75 static const struct lbs_fw_table fw_table[] = {
76 { MODEL_8305, "libertas/cf8305.bin", NULL },
77 { MODEL_8305, "libertas_cs_helper.fw", NULL },
78 { MODEL_8381, "libertas/cf8381_helper.bin", "libertas/cf8381.bin" },
79 { MODEL_8381, "libertas_cs_helper.fw", "libertas_cs.fw" },
80 { MODEL_8385, "libertas/cf8385_helper.bin", "libertas/cf8385.bin" },
81 { MODEL_8385, "libertas_cs_helper.fw", "libertas_cs.fw" },
84 MODULE_FIRMWARE("libertas/cf8305.bin");
85 MODULE_FIRMWARE("libertas/cf8381_helper.bin");
86 MODULE_FIRMWARE("libertas/cf8381.bin");
87 MODULE_FIRMWARE("libertas/cf8385_helper.bin");
88 MODULE_FIRMWARE("libertas/cf8385.bin");
89 MODULE_FIRMWARE("libertas_cs_helper.fw");
90 MODULE_FIRMWARE("libertas_cs.fw");
93 /********************************************************************/
95 /********************************************************************/
97 /* This define enables wrapper functions which allow you
98 to dump all register accesses. You normally won't this,
99 except for development */
100 /* #define DEBUG_IO */
103 static int debug_output = 0;
105 /* This way the compiler optimizes the printk's away */
106 #define debug_output 0
109 static inline unsigned int if_cs_read8(struct if_cs_card *card, uint reg)
111 unsigned int val = ioread8(card->iobase + reg);
113 printk(KERN_INFO "inb %08x<%02x\n", reg, val);
116 static inline unsigned int if_cs_read16(struct if_cs_card *card, uint reg)
118 unsigned int val = ioread16(card->iobase + reg);
120 printk(KERN_INFO "inw %08x<%04x\n", reg, val);
123 static inline void if_cs_read16_rep(
124 struct if_cs_card *card,
130 printk(KERN_INFO "insw %08x<(0x%lx words)\n",
132 ioread16_rep(card->iobase + reg, buf, count);
135 static inline void if_cs_write8(struct if_cs_card *card, uint reg, u8 val)
138 printk(KERN_INFO "outb %08x>%02x\n", reg, val);
139 iowrite8(val, card->iobase + reg);
142 static inline void if_cs_write16(struct if_cs_card *card, uint reg, u16 val)
145 printk(KERN_INFO "outw %08x>%04x\n", reg, val);
146 iowrite16(val, card->iobase + reg);
149 static inline void if_cs_write16_rep(
150 struct if_cs_card *card,
156 printk(KERN_INFO "outsw %08x>(0x%lx words)\n",
158 iowrite16_rep(card->iobase + reg, buf, count);
163 * I know that polling/delaying is frowned upon. However, this procedure
164 * with polling is needed while downloading the firmware. At this stage,
165 * the hardware does unfortunately not create any interrupts.
167 * Fortunately, this function is never used once the firmware is in
170 * As a reference, see the "Firmware Specification v5.1", page 18
171 * and 19. I did not follow their suggested timing to the word,
172 * but this works nice & fast anyway.
174 static int if_cs_poll_while_fw_download(struct if_cs_card *card, uint addr, u8 reg)
178 for (i = 0; i < 100000; i++) {
179 u8 val = if_cs_read8(card, addr);
190 * First the bitmasks for the host/card interrupt/status registers:
192 #define IF_CS_BIT_TX 0x0001
193 #define IF_CS_BIT_RX 0x0002
194 #define IF_CS_BIT_COMMAND 0x0004
195 #define IF_CS_BIT_RESP 0x0008
196 #define IF_CS_BIT_EVENT 0x0010
197 #define IF_CS_BIT_MASK 0x001f
202 * It's not really clear to me what the host status register is for. It
203 * needs to be set almost in union with "host int cause". The following
204 * bits from above are used:
206 * IF_CS_BIT_TX driver downloaded a data packet
207 * IF_CS_BIT_RX driver got a data packet
208 * IF_CS_BIT_COMMAND driver downloaded a command
209 * IF_CS_BIT_RESP not used (has some meaning with powerdown)
210 * IF_CS_BIT_EVENT driver read a host event
212 #define IF_CS_HOST_STATUS 0x00000000
215 * With the host int cause register can the host (that is, Linux) cause
216 * an interrupt in the firmware, to tell the firmware about those events:
218 * IF_CS_BIT_TX a data packet has been downloaded
219 * IF_CS_BIT_RX a received data packet has retrieved
220 * IF_CS_BIT_COMMAND a firmware block or a command has been downloaded
221 * IF_CS_BIT_RESP not used (has some meaning with powerdown)
222 * IF_CS_BIT_EVENT a host event (link lost etc) has been retrieved
224 #define IF_CS_HOST_INT_CAUSE 0x00000002
227 * The host int mask register is used to enable/disable interrupt. However,
228 * I have the suspicion that disabled interrupts are lost.
230 #define IF_CS_HOST_INT_MASK 0x00000004
233 * Used to send or receive data packets:
235 #define IF_CS_WRITE 0x00000016
236 #define IF_CS_WRITE_LEN 0x00000014
237 #define IF_CS_READ 0x00000010
238 #define IF_CS_READ_LEN 0x00000024
241 * Used to send commands (and to send firmware block) and to
242 * receive command responses:
244 #define IF_CS_CMD 0x0000001A
245 #define IF_CS_CMD_LEN 0x00000018
246 #define IF_CS_RESP 0x00000012
247 #define IF_CS_RESP_LEN 0x00000030
250 * The card status registers shows what the card/firmware actually
253 * IF_CS_BIT_TX you may send a data packet
254 * IF_CS_BIT_RX you may retrieve a data packet
255 * IF_CS_BIT_COMMAND you may send a command
256 * IF_CS_BIT_RESP you may retrieve a command response
257 * IF_CS_BIT_EVENT the card has a event for use (link lost, snr low etc)
259 * When reading this register several times, you will get back the same
260 * results --- with one exception: the IF_CS_BIT_EVENT clear itself
263 * Not that we don't rely on BIT_RX,_BIT_RESP or BIT_EVENT because
264 * we handle this via the card int cause register.
266 #define IF_CS_CARD_STATUS 0x00000020
267 #define IF_CS_CARD_STATUS_MASK 0x7f00
270 * The card int cause register is used by the card/firmware to notify us
271 * about the following events:
273 * IF_CS_BIT_TX a data packet has successfully been sentx
274 * IF_CS_BIT_RX a data packet has been received and can be retrieved
275 * IF_CS_BIT_COMMAND not used
276 * IF_CS_BIT_RESP the firmware has a command response for us
277 * IF_CS_BIT_EVENT the card has a event for use (link lost, snr low etc)
279 #define IF_CS_CARD_INT_CAUSE 0x00000022
282 * This is used to for handshaking with the card's bootloader/helper image
283 * to synchronize downloading of firmware blocks.
285 #define IF_CS_SQ_READ_LOW 0x00000028
286 #define IF_CS_SQ_HELPER_OK 0x10
289 * The scratch register tells us ...
291 * IF_CS_SCRATCH_BOOT_OK the bootloader runs
292 * IF_CS_SCRATCH_HELPER_OK the helper firmware already runs
294 #define IF_CS_SCRATCH 0x0000003F
295 #define IF_CS_SCRATCH_BOOT_OK 0x00
296 #define IF_CS_SCRATCH_HELPER_OK 0x5a
299 * Used to detect ancient chips:
301 #define IF_CS_PRODUCT_ID 0x0000001C
302 #define IF_CS_CF8385_B1_REV 0x12
303 #define IF_CS_CF8381_B3_REV 0x04
304 #define IF_CS_CF8305_B1_REV 0x03
307 * Used to detect other cards than CF8385 since their revisions of silicon
308 * doesn't match those from CF8385, eg. CF8381 B3 works with this driver.
310 #define CF8305_MANFID 0x02db
311 #define CF8305_CARDID 0x8103
312 #define CF8381_MANFID 0x02db
313 #define CF8381_CARDID 0x6064
314 #define CF8385_MANFID 0x02df
315 #define CF8385_CARDID 0x8103
318 * FIXME: just use the 'driver_info' field of 'struct pcmcia_device_id' when
319 * that gets fixed. Currently there's no way to access it from the probe hook.
321 static inline u32 get_model(u16 manf_id, u16 card_id)
323 /* NOTE: keep in sync with if_cs_ids */
324 if (manf_id == CF8305_MANFID && card_id == CF8305_CARDID)
326 else if (manf_id == CF8381_MANFID && card_id == CF8381_CARDID)
328 else if (manf_id == CF8385_MANFID && card_id == CF8385_CARDID)
330 return MODEL_UNKNOWN;
333 /********************************************************************/
334 /* I/O and interrupt handling */
335 /********************************************************************/
337 static inline void if_cs_enable_ints(struct if_cs_card *card)
339 lbs_deb_enter(LBS_DEB_CS);
340 if_cs_write16(card, IF_CS_HOST_INT_MASK, 0);
343 static inline void if_cs_disable_ints(struct if_cs_card *card)
345 lbs_deb_enter(LBS_DEB_CS);
346 if_cs_write16(card, IF_CS_HOST_INT_MASK, IF_CS_BIT_MASK);
350 * Called from if_cs_host_to_card to send a command to the hardware
352 static int if_cs_send_cmd(struct lbs_private *priv, u8 *buf, u16 nb)
354 struct if_cs_card *card = (struct if_cs_card *)priv->card;
358 lbs_deb_enter(LBS_DEB_CS);
359 if_cs_disable_ints(card);
361 /* Is hardware ready? */
363 u16 status = if_cs_read16(card, IF_CS_CARD_STATUS);
364 if (status & IF_CS_BIT_COMMAND)
367 netdev_err(priv->dev, "card not ready for commands\n");
373 if_cs_write16(card, IF_CS_CMD_LEN, nb);
375 if_cs_write16_rep(card, IF_CS_CMD, buf, nb / 2);
376 /* Are we supposed to transfer an odd amount of bytes? */
378 if_cs_write8(card, IF_CS_CMD, buf[nb-1]);
380 /* "Assert the download over interrupt command in the Host
381 * status register" */
382 if_cs_write16(card, IF_CS_HOST_STATUS, IF_CS_BIT_COMMAND);
384 /* "Assert the download over interrupt command in the Card
385 * interrupt case register" */
386 if_cs_write16(card, IF_CS_HOST_INT_CAUSE, IF_CS_BIT_COMMAND);
390 if_cs_enable_ints(card);
391 lbs_deb_leave_args(LBS_DEB_CS, "ret %d", ret);
396 * Called from if_cs_host_to_card to send a data to the hardware
398 static void if_cs_send_data(struct lbs_private *priv, u8 *buf, u16 nb)
400 struct if_cs_card *card = (struct if_cs_card *)priv->card;
403 lbs_deb_enter(LBS_DEB_CS);
404 if_cs_disable_ints(card);
406 status = if_cs_read16(card, IF_CS_CARD_STATUS);
407 BUG_ON((status & IF_CS_BIT_TX) == 0);
409 if_cs_write16(card, IF_CS_WRITE_LEN, nb);
411 /* write even number of bytes, then odd byte if necessary */
412 if_cs_write16_rep(card, IF_CS_WRITE, buf, nb / 2);
414 if_cs_write8(card, IF_CS_WRITE, buf[nb-1]);
416 if_cs_write16(card, IF_CS_HOST_STATUS, IF_CS_BIT_TX);
417 if_cs_write16(card, IF_CS_HOST_INT_CAUSE, IF_CS_BIT_TX);
418 if_cs_enable_ints(card);
420 lbs_deb_leave(LBS_DEB_CS);
424 * Get the command result out of the card.
426 static int if_cs_receive_cmdres(struct lbs_private *priv, u8 *data, u32 *len)
432 lbs_deb_enter(LBS_DEB_CS);
434 /* is hardware ready? */
435 status = if_cs_read16(priv->card, IF_CS_CARD_STATUS);
436 if ((status & IF_CS_BIT_RESP) == 0) {
437 netdev_err(priv->dev, "no cmd response in card\n");
442 *len = if_cs_read16(priv->card, IF_CS_RESP_LEN);
443 if ((*len == 0) || (*len > LBS_CMD_BUFFER_SIZE)) {
444 netdev_err(priv->dev,
445 "card cmd buffer has invalid # of bytes (%d)\n",
450 /* read even number of bytes, then odd byte if necessary */
451 if_cs_read16_rep(priv->card, IF_CS_RESP, data, *len/sizeof(u16));
453 data[*len-1] = if_cs_read8(priv->card, IF_CS_RESP);
455 /* This is a workaround for a firmware that reports too much
460 /* Clear this flag again */
461 spin_lock_irqsave(&priv->driver_lock, flags);
462 priv->dnld_sent = DNLD_RES_RECEIVED;
463 spin_unlock_irqrestore(&priv->driver_lock, flags);
466 lbs_deb_leave_args(LBS_DEB_CS, "ret %d, len %d", ret, *len);
470 static struct sk_buff *if_cs_receive_data(struct lbs_private *priv)
472 struct sk_buff *skb = NULL;
476 lbs_deb_enter(LBS_DEB_CS);
478 len = if_cs_read16(priv->card, IF_CS_READ_LEN);
479 if (len == 0 || len > MRVDRV_ETH_RX_PACKET_BUFFER_SIZE) {
480 netdev_err(priv->dev,
481 "card data buffer has invalid # of bytes (%d)\n",
483 priv->dev->stats.rx_dropped++;
487 skb = dev_alloc_skb(MRVDRV_ETH_RX_PACKET_BUFFER_SIZE + 2);
491 skb_reserve(skb, 2);/* 16 byte align */
494 /* read even number of bytes, then odd byte if necessary */
495 if_cs_read16_rep(priv->card, IF_CS_READ, data, len/sizeof(u16));
497 data[len-1] = if_cs_read8(priv->card, IF_CS_READ);
500 if_cs_write16(priv->card, IF_CS_HOST_STATUS, IF_CS_BIT_RX);
501 if_cs_write16(priv->card, IF_CS_HOST_INT_CAUSE, IF_CS_BIT_RX);
504 lbs_deb_leave_args(LBS_DEB_CS, "ret %p", skb);
508 static irqreturn_t if_cs_interrupt(int irq, void *data)
510 struct if_cs_card *card = data;
511 struct lbs_private *priv = card->priv;
514 lbs_deb_enter(LBS_DEB_CS);
516 /* Ask card interrupt cause register if there is something for us */
517 cause = if_cs_read16(card, IF_CS_CARD_INT_CAUSE);
518 lbs_deb_cs("cause 0x%04x\n", cause);
525 if (cause == 0xffff) {
526 /* Read in junk, the card has probably been removed */
527 card->priv->surpriseremoved = 1;
531 if (cause & IF_CS_BIT_RX) {
533 lbs_deb_cs("rx packet\n");
534 skb = if_cs_receive_data(priv);
536 lbs_process_rxed_packet(priv, skb);
539 if (cause & IF_CS_BIT_TX) {
540 lbs_deb_cs("tx done\n");
541 lbs_host_to_card_done(priv);
544 if (cause & IF_CS_BIT_RESP) {
548 lbs_deb_cs("cmd resp\n");
549 spin_lock_irqsave(&priv->driver_lock, flags);
550 i = (priv->resp_idx == 0) ? 1 : 0;
551 spin_unlock_irqrestore(&priv->driver_lock, flags);
553 BUG_ON(priv->resp_len[i]);
554 if_cs_receive_cmdres(priv, priv->resp_buf[i],
557 spin_lock_irqsave(&priv->driver_lock, flags);
558 lbs_notify_command_response(priv, i);
559 spin_unlock_irqrestore(&priv->driver_lock, flags);
562 if (cause & IF_CS_BIT_EVENT) {
563 u16 status = if_cs_read16(priv->card, IF_CS_CARD_STATUS);
564 if_cs_write16(priv->card, IF_CS_HOST_INT_CAUSE,
566 lbs_queue_event(priv, (status & IF_CS_CARD_STATUS_MASK) >> 8);
569 /* Clear interrupt cause */
570 if_cs_write16(card, IF_CS_CARD_INT_CAUSE, cause & IF_CS_BIT_MASK);
572 lbs_deb_leave(LBS_DEB_CS);
579 /********************************************************************/
581 /********************************************************************/
584 * Tries to program the helper firmware.
586 * Return 0 on success
588 static int if_cs_prog_helper(struct if_cs_card *card, const struct firmware *fw)
594 lbs_deb_enter(LBS_DEB_CS);
597 * This is the only place where an unaligned register access happens on
598 * the CF8305 card, therefore for the sake of speed of the driver, we do
599 * the alignment correction here.
601 if (card->align_regs)
602 scratch = if_cs_read16(card, IF_CS_SCRATCH) >> 8;
604 scratch = if_cs_read8(card, IF_CS_SCRATCH);
606 /* "If the value is 0x5a, the firmware is already
607 * downloaded successfully"
609 if (scratch == IF_CS_SCRATCH_HELPER_OK)
612 /* "If the value is != 00, it is invalid value of register */
613 if (scratch != IF_CS_SCRATCH_BOOT_OK) {
618 lbs_deb_cs("helper size %td\n", fw->size);
620 /* "Set the 5 bytes of the helper image to 0" */
621 /* Not needed, this contains an ARM branch instruction */
624 /* "the number of bytes to send is 256" */
626 int remain = fw->size - sent;
632 * "write the number of bytes to be sent to the I/O Command
633 * write length register"
635 if_cs_write16(card, IF_CS_CMD_LEN, count);
637 /* "write this to I/O Command port register as 16 bit writes */
639 if_cs_write16_rep(card, IF_CS_CMD,
644 * "Assert the download over interrupt command in the Host
647 if_cs_write8(card, IF_CS_HOST_STATUS, IF_CS_BIT_COMMAND);
650 * "Assert the download over interrupt command in the Card
651 * interrupt case register"
653 if_cs_write16(card, IF_CS_HOST_INT_CAUSE, IF_CS_BIT_COMMAND);
656 * "The host polls the Card Status register ... for 50 ms before
657 * declaring a failure"
659 ret = if_cs_poll_while_fw_download(card, IF_CS_CARD_STATUS,
662 pr_err("can't download helper at 0x%x, ret %d\n",
674 lbs_deb_leave_args(LBS_DEB_CS, "ret %d", ret);
679 static int if_cs_prog_real(struct if_cs_card *card, const struct firmware *fw)
686 lbs_deb_enter(LBS_DEB_CS);
688 lbs_deb_cs("fw size %td\n", fw->size);
690 ret = if_cs_poll_while_fw_download(card, IF_CS_SQ_READ_LOW,
693 pr_err("helper firmware doesn't answer\n");
697 for (sent = 0; sent < fw->size; sent += len) {
698 len = if_cs_read16(card, IF_CS_SQ_READ_LOW);
701 pr_info("odd, need to retry this firmware block\n");
707 pr_err("could not download firmware\n");
716 if_cs_write16(card, IF_CS_CMD_LEN, len);
718 if_cs_write16_rep(card, IF_CS_CMD,
721 if_cs_write8(card, IF_CS_HOST_STATUS, IF_CS_BIT_COMMAND);
722 if_cs_write16(card, IF_CS_HOST_INT_CAUSE, IF_CS_BIT_COMMAND);
724 ret = if_cs_poll_while_fw_download(card, IF_CS_CARD_STATUS,
727 pr_err("can't download firmware at 0x%x\n", sent);
732 ret = if_cs_poll_while_fw_download(card, IF_CS_SCRATCH, 0x5a);
734 pr_err("firmware download failed\n");
737 lbs_deb_leave_args(LBS_DEB_CS, "ret %d", ret);
741 static void if_cs_prog_firmware(struct lbs_private *priv, int ret,
742 const struct firmware *helper,
743 const struct firmware *mainfw)
745 struct if_cs_card *card = priv->card;
748 pr_err("failed to find firmware (%d)\n", ret);
752 /* Load the firmware */
753 ret = if_cs_prog_helper(card, helper);
754 if (ret == 0 && (card->model != MODEL_8305))
755 ret = if_cs_prog_real(card, mainfw);
759 /* Now actually get the IRQ */
760 ret = request_irq(card->p_dev->irq, if_cs_interrupt,
761 IRQF_SHARED, DRV_NAME, card);
763 pr_err("error in request_irq\n");
768 * Clear any interrupt cause that happened while sending
769 * firmware/initializing card
771 if_cs_write16(card, IF_CS_CARD_INT_CAUSE, IF_CS_BIT_MASK);
772 if_cs_enable_ints(card);
774 /* And finally bring the card up */
776 if (lbs_start_card(priv) != 0) {
777 pr_err("could not activate card\n");
778 free_irq(card->p_dev->irq, card);
782 release_firmware(helper);
783 release_firmware(mainfw);
787 /********************************************************************/
788 /* Callback functions for libertas.ko */
789 /********************************************************************/
791 /* Send commands or data packets to the card */
792 static int if_cs_host_to_card(struct lbs_private *priv,
799 lbs_deb_enter_args(LBS_DEB_CS, "type %d, bytes %d", type, nb);
803 priv->dnld_sent = DNLD_DATA_SENT;
804 if_cs_send_data(priv, buf, nb);
808 priv->dnld_sent = DNLD_CMD_SENT;
809 ret = if_cs_send_cmd(priv, buf, nb);
812 netdev_err(priv->dev, "%s: unsupported type %d\n",
816 lbs_deb_leave_args(LBS_DEB_CS, "ret %d", ret);
821 static void if_cs_release(struct pcmcia_device *p_dev)
823 struct if_cs_card *card = p_dev->priv;
825 lbs_deb_enter(LBS_DEB_CS);
827 free_irq(p_dev->irq, card);
828 pcmcia_disable_device(p_dev);
830 ioport_unmap(card->iobase);
832 lbs_deb_leave(LBS_DEB_CS);
836 static int if_cs_ioprobe(struct pcmcia_device *p_dev, void *priv_data)
838 p_dev->resource[0]->flags &= ~IO_DATA_PATH_WIDTH;
839 p_dev->resource[0]->flags |= IO_DATA_PATH_WIDTH_AUTO;
841 if (p_dev->resource[1]->end) {
842 pr_err("wrong CIS (check number of IO windows)\n");
846 /* This reserves IO space but doesn't actually enable it */
847 return pcmcia_request_io(p_dev);
850 static int if_cs_probe(struct pcmcia_device *p_dev)
853 unsigned int prod_id;
854 struct lbs_private *priv;
855 struct if_cs_card *card;
857 lbs_deb_enter(LBS_DEB_CS);
859 card = kzalloc(sizeof(struct if_cs_card), GFP_KERNEL);
866 p_dev->config_flags |= CONF_ENABLE_IRQ | CONF_AUTO_SET_IO;
868 if (pcmcia_loop_config(p_dev, if_cs_ioprobe, NULL)) {
869 pr_err("error in pcmcia_loop_config\n");
874 * Allocate an interrupt line. Note that this does not assign
875 * a handler to the interrupt, unless the 'Handler' member of
876 * the irq structure is initialized.
881 /* Initialize io access */
882 card->iobase = ioport_map(p_dev->resource[0]->start,
883 resource_size(p_dev->resource[0]));
885 pr_err("error in ioport_map\n");
890 ret = pcmcia_enable_device(p_dev);
892 pr_err("error in pcmcia_enable_device\n");
896 /* Finally, report what we've done */
897 lbs_deb_cs("irq %d, io %pR", p_dev->irq, p_dev->resource[0]);
900 * Most of the libertas cards can do unaligned register access, but some
901 * weird ones cannot. That's especially true for the CF8305 card.
903 card->align_regs = false;
905 card->model = get_model(p_dev->manf_id, p_dev->card_id);
906 if (card->model == MODEL_UNKNOWN) {
907 pr_err("unsupported manf_id 0x%04x / card_id 0x%04x\n",
908 p_dev->manf_id, p_dev->card_id);
912 /* Check if we have a current silicon */
913 prod_id = if_cs_read8(card, IF_CS_PRODUCT_ID);
914 if (card->model == MODEL_8305) {
915 card->align_regs = true;
916 if (prod_id < IF_CS_CF8305_B1_REV) {
917 pr_err("8305 rev B0 and older are not supported\n");
923 if ((card->model == MODEL_8381) && prod_id < IF_CS_CF8381_B3_REV) {
924 pr_err("8381 rev B2 and older are not supported\n");
929 if ((card->model == MODEL_8385) && prod_id < IF_CS_CF8385_B1_REV) {
930 pr_err("8385 rev B0 and older are not supported\n");
935 /* Make this card known to the libertas driver */
936 priv = lbs_add_card(card, &p_dev->dev);
942 /* Set up fields in lbs_private */
945 priv->hw_host_to_card = if_cs_host_to_card;
946 priv->enter_deep_sleep = NULL;
947 priv->exit_deep_sleep = NULL;
948 priv->reset_deep_sleep_wakeup = NULL;
951 ret = lbs_get_firmware_async(priv, &p_dev->dev, card->model, fw_table,
952 if_cs_prog_firmware);
954 pr_err("failed to find firmware (%d)\n", ret);
961 lbs_remove_card(priv);
963 ioport_unmap(card->iobase);
965 pcmcia_disable_device(p_dev);
967 lbs_deb_leave_args(LBS_DEB_CS, "ret %d", ret);
972 static void if_cs_detach(struct pcmcia_device *p_dev)
974 struct if_cs_card *card = p_dev->priv;
976 lbs_deb_enter(LBS_DEB_CS);
978 lbs_stop_card(card->priv);
979 lbs_remove_card(card->priv);
980 if_cs_disable_ints(card);
981 if_cs_release(p_dev);
984 lbs_deb_leave(LBS_DEB_CS);
989 /********************************************************************/
990 /* Module initialization */
991 /********************************************************************/
993 static const struct pcmcia_device_id if_cs_ids[] = {
994 PCMCIA_DEVICE_MANF_CARD(CF8305_MANFID, CF8305_CARDID),
995 PCMCIA_DEVICE_MANF_CARD(CF8381_MANFID, CF8381_CARDID),
996 PCMCIA_DEVICE_MANF_CARD(CF8385_MANFID, CF8385_CARDID),
997 /* NOTE: keep in sync with get_model() */
1000 MODULE_DEVICE_TABLE(pcmcia, if_cs_ids);
1003 static struct pcmcia_driver lbs_driver = {
1004 .owner = THIS_MODULE,
1006 .probe = if_cs_probe,
1007 .remove = if_cs_detach,
1008 .id_table = if_cs_ids,
1012 static int __init if_cs_init(void)
1016 lbs_deb_enter(LBS_DEB_CS);
1017 ret = pcmcia_register_driver(&lbs_driver);
1018 lbs_deb_leave(LBS_DEB_CS);
1023 static void __exit if_cs_exit(void)
1025 lbs_deb_enter(LBS_DEB_CS);
1026 pcmcia_unregister_driver(&lbs_driver);
1027 lbs_deb_leave(LBS_DEB_CS);
1031 module_init(if_cs_init);
1032 module_exit(if_cs_exit);