diff options
Diffstat (limited to 'drivers/net/wireless/libertas/if_cs.c')
| -rw-r--r-- | drivers/net/wireless/libertas/if_cs.c | 199 |
1 files changed, 99 insertions, 100 deletions
diff --git a/drivers/net/wireless/libertas/if_cs.c b/drivers/net/wireless/libertas/if_cs.c index fc8121190d3..f499efc6abc 100644 --- a/drivers/net/wireless/libertas/if_cs.c +++ b/drivers/net/wireless/libertas/if_cs.c @@ -21,6 +21,8 @@ */ +#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt + #include <linux/module.h> #include <linux/slab.h> #include <linux/delay.h> @@ -312,7 +314,8 @@ static int if_cs_poll_while_fw_download(struct if_cs_card *card, uint addr, u8 r #define CF8385_MANFID 0x02df #define CF8385_CARDID 0x8103 -/* FIXME: just use the 'driver_info' field of 'struct pcmcia_device_id' when +/* + * FIXME: just use the 'driver_info' field of 'struct pcmcia_device_id' when * that gets fixed. Currently there's no way to access it from the probe hook. */ static inline u32 get_model(u16 manf_id, u16 card_id) @@ -361,7 +364,7 @@ static int if_cs_send_cmd(struct lbs_private *priv, u8 *buf, u16 nb) if (status & IF_CS_BIT_COMMAND) break; if (++loops > 100) { - lbs_pr_err("card not ready for commands\n"); + netdev_err(priv->dev, "card not ready for commands\n"); goto done; } mdelay(1); @@ -431,14 +434,16 @@ static int if_cs_receive_cmdres(struct lbs_private *priv, u8 *data, u32 *len) /* is hardware ready? */ 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"); + netdev_err(priv->dev, "no cmd response in card\n"); *len = 0; goto out; } *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); + netdev_err(priv->dev, + "card cmd buffer has invalid # of bytes (%d)\n", + *len); goto out; } @@ -472,7 +477,9 @@ static struct sk_buff *if_cs_receive_data(struct lbs_private *priv) 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); + netdev_err(priv->dev, + "card data buffer has invalid # of bytes (%d)\n", + len); priv->dev->stats.rx_dropped++; goto dat_err; } @@ -621,8 +628,10 @@ static int if_cs_prog_helper(struct if_cs_card *card, const struct firmware *fw) if (remain < count) count = remain; - /* "write the number of bytes to be sent to the I/O Command - * write length register" */ + /* + * "write the number of bytes to be sent to the I/O Command + * write length register" + */ if_cs_write16(card, IF_CS_CMD_LEN, count); /* "write this to I/O Command port register as 16 bit writes */ @@ -631,21 +640,27 @@ static int if_cs_prog_helper(struct if_cs_card *card, const struct firmware *fw) &fw->data[sent], count >> 1); - /* "Assert the download over interrupt command in the Host - * status register" */ + /* + * "Assert the download over interrupt command in the Host + * status register" + */ if_cs_write8(card, IF_CS_HOST_STATUS, IF_CS_BIT_COMMAND); - /* "Assert the download over interrupt command in the Card - * interrupt case register" */ + /* + * "Assert the download over interrupt command in the Card + * interrupt case register" + */ 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 */ + /* + * "The host polls the Card Status register ... for 50 ms before + * declaring a failure" + */ 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); + pr_err("can't download helper at 0x%x, ret %d\n", + sent, ret); goto done; } @@ -675,7 +690,7 @@ static int if_cs_prog_real(struct if_cs_card *card, const struct firmware *fw) ret = if_cs_poll_while_fw_download(card, IF_CS_SQ_READ_LOW, IF_CS_SQ_HELPER_OK); if (ret < 0) { - lbs_pr_err("helper firmware doesn't answer\n"); + pr_err("helper firmware doesn't answer\n"); goto done; } @@ -683,13 +698,13 @@ static int if_cs_prog_real(struct if_cs_card *card, const struct firmware *fw) 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"); + pr_info("odd, need to retry this firmware block\n"); } else { retry = 0; } if (retry > 20) { - lbs_pr_err("could not download firmware\n"); + pr_err("could not download firmware\n"); ret = -ENODEV; goto done; } @@ -709,20 +724,60 @@ static int if_cs_prog_real(struct if_cs_card *card, const struct firmware *fw) 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); + pr_err("can't download firmware at 0x%x\n", sent); goto done; } } ret = if_cs_poll_while_fw_download(card, IF_CS_SCRATCH, 0x5a); if (ret < 0) - lbs_pr_err("firmware download failed\n"); + pr_err("firmware download failed\n"); done: lbs_deb_leave_args(LBS_DEB_CS, "ret %d", ret); return ret; } +static void if_cs_prog_firmware(struct lbs_private *priv, int ret, + const struct firmware *helper, + const struct firmware *mainfw) +{ + struct if_cs_card *card = priv->card; + + if (ret) { + pr_err("failed to find firmware (%d)\n", ret); + return; + } + + /* Load the firmware */ + ret = if_cs_prog_helper(card, helper); + if (ret == 0 && (card->model != MODEL_8305)) + ret = if_cs_prog_real(card, mainfw); + if (ret) + return; + + /* Now actually get the IRQ */ + ret = request_irq(card->p_dev->irq, if_cs_interrupt, + IRQF_SHARED, DRV_NAME, card); + if (ret) { + pr_err("error in request_irq\n"); + return; + } + + /* + * Clear any interrupt cause that happened 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 */ + priv->fw_ready = 1; + if (lbs_start_card(priv) != 0) { + pr_err("could not activate card\n"); + free_irq(card->p_dev->irq, card); + } +} /********************************************************************/ @@ -750,7 +805,8 @@ static int if_cs_host_to_card(struct lbs_private *priv, ret = if_cs_send_cmd(priv, buf, nb); break; default: - lbs_pr_err("%s: unsupported type %d\n", __func__, type); + netdev_err(priv->dev, "%s: unsupported type %d\n", + __func__, type); } lbs_deb_leave_args(LBS_DEB_CS, "ret %d", ret); @@ -779,7 +835,7 @@ static int if_cs_ioprobe(struct pcmcia_device *p_dev, void *priv_data) p_dev->resource[0]->flags |= IO_DATA_PATH_WIDTH_AUTO; if (p_dev->resource[1]->end) { - lbs_pr_err("wrong CIS (check number of IO windows)\n"); + pr_err("wrong CIS (check number of IO windows)\n"); return -ENODEV; } @@ -793,23 +849,20 @@ static int if_cs_probe(struct pcmcia_device *p_dev) unsigned int prod_id; struct lbs_private *priv; struct if_cs_card *card; - const struct firmware *helper = NULL; - const struct firmware *mainfw = NULL; lbs_deb_enter(LBS_DEB_CS); card = kzalloc(sizeof(struct if_cs_card), GFP_KERNEL); - if (!card) { - lbs_pr_err("error in kzalloc\n"); + if (!card) goto out; - } + card->p_dev = p_dev; p_dev->priv = card; p_dev->config_flags |= CONF_ENABLE_IRQ | CONF_AUTO_SET_IO; if (pcmcia_loop_config(p_dev, if_cs_ioprobe, NULL)) { - lbs_pr_err("error in pcmcia_loop_config\n"); + pr_err("error in pcmcia_loop_config\n"); goto out1; } @@ -825,14 +878,14 @@ static int if_cs_probe(struct pcmcia_device *p_dev) card->iobase = ioport_map(p_dev->resource[0]->start, resource_size(p_dev->resource[0])); if (!card->iobase) { - lbs_pr_err("error in ioport_map\n"); + pr_err("error in ioport_map\n"); ret = -EIO; goto out1; } ret = pcmcia_enable_device(p_dev); if (ret) { - lbs_pr_err("error in pcmcia_enable_device\n"); + pr_err("error in pcmcia_enable_device\n"); goto out2; } @@ -841,54 +894,41 @@ static int if_cs_probe(struct pcmcia_device *p_dev) /* * Most of the libertas cards can do unaligned register access, but some - * weird ones can not. That's especially true for the CF8305 card. + * weird ones cannot. That's especially true for the CF8305 card. */ - card->align_regs = 0; + card->align_regs = false; card->model = get_model(p_dev->manf_id, p_dev->card_id); if (card->model == MODEL_UNKNOWN) { - lbs_pr_err("unsupported manf_id 0x%04x / card_id 0x%04x\n", - p_dev->manf_id, p_dev->card_id); + pr_err("unsupported manf_id 0x%04x / card_id 0x%04x\n", + p_dev->manf_id, p_dev->card_id); + ret = -ENODEV; goto out2; } /* Check if we have a current silicon */ prod_id = if_cs_read8(card, IF_CS_PRODUCT_ID); if (card->model == MODEL_8305) { - card->align_regs = 1; + card->align_regs = true; if (prod_id < IF_CS_CF8305_B1_REV) { - lbs_pr_err("8305 rev B0 and older are not supported\n"); + pr_err("8305 rev B0 and older are not supported\n"); ret = -ENODEV; goto out2; } } if ((card->model == MODEL_8381) && prod_id < IF_CS_CF8381_B3_REV) { - lbs_pr_err("8381 rev B2 and older are not supported\n"); + pr_err("8381 rev B2 and older are not supported\n"); ret = -ENODEV; goto out2; } if ((card->model == MODEL_8385) && prod_id < IF_CS_CF8385_B1_REV) { - lbs_pr_err("8385 rev B0 and older are not supported\n"); + pr_err("8385 rev B0 and older are not supported\n"); ret = -ENODEV; goto out2; } - ret = lbs_get_firmware(&p_dev->dev, NULL, NULL, card->model, - &fw_table[0], &helper, &mainfw); - if (ret) { - lbs_pr_err("failed to find firmware (%d)\n", ret); - goto out2; - } - - /* Load the firmware early, before calling into libertas.ko */ - ret = if_cs_prog_helper(card, helper); - if (ret == 0 && (card->model != MODEL_8305)) - ret = if_cs_prog_real(card, mainfw); - if (ret) - goto out2; - /* Make this card known to the libertas driver */ priv = lbs_add_card(card, &p_dev->dev); if (!priv) { @@ -896,35 +936,22 @@ static int if_cs_probe(struct pcmcia_device *p_dev) goto out2; } - /* Finish setting up fields in lbs_private */ + /* Set up fields in lbs_private */ card->priv = priv; priv->card = card; 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, if_cs_interrupt, - IRQF_SHARED, DRV_NAME, card); + /* Get firmware */ + ret = lbs_get_firmware_async(priv, &p_dev->dev, card->model, fw_table, + if_cs_prog_firmware); if (ret) { - lbs_pr_err("error in request_irq\n"); - 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 (lbs_start_card(priv) != 0) { - lbs_pr_err("could not activate card\n"); + pr_err("failed to find firmware (%d)\n", ret); goto out3; } - ret = 0; goto out; out3: @@ -934,11 +961,6 @@ out2: out1: pcmcia_disable_device(p_dev); out: - if (helper) - release_firmware(helper); - if (mainfw) - release_firmware(mainfw); - lbs_deb_leave_args(LBS_DEB_CS, "ret %d", ret); return ret; } @@ -965,7 +987,7 @@ static void if_cs_detach(struct pcmcia_device *p_dev) /* Module initialization */ /********************************************************************/ -static struct pcmcia_device_id if_cs_ids[] = { +static const struct pcmcia_device_id if_cs_ids[] = { PCMCIA_DEVICE_MANF_CARD(CF8305_MANFID, CF8305_CARDID), PCMCIA_DEVICE_MANF_CARD(CF8381_MANFID, CF8381_CARDID), PCMCIA_DEVICE_MANF_CARD(CF8385_MANFID, CF8385_CARDID), @@ -974,7 +996,6 @@ static struct pcmcia_device_id if_cs_ids[] = { }; MODULE_DEVICE_TABLE(pcmcia, if_cs_ids); - static struct pcmcia_driver lbs_driver = { .owner = THIS_MODULE, .name = DRV_NAME, @@ -982,26 +1003,4 @@ static struct pcmcia_driver lbs_driver = { .remove = if_cs_detach, .id_table = if_cs_ids, }; - - -static int __init if_cs_init(void) -{ - int ret; - - lbs_deb_enter(LBS_DEB_CS); - 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(&lbs_driver); - lbs_deb_leave(LBS_DEB_CS); -} - - -module_init(if_cs_init); -module_exit(if_cs_exit); +module_pcmcia_driver(lbs_driver); |
