diff options
Diffstat (limited to 'drivers/pcmcia')
| -rw-r--r-- | drivers/pcmcia/ds.c | 153 |
1 files changed, 87 insertions, 66 deletions
diff --git a/drivers/pcmcia/ds.c b/drivers/pcmcia/ds.c index 7f6e94cd067a..da7ceb523b48 100644 --- a/drivers/pcmcia/ds.c +++ b/drivers/pcmcia/ds.c @@ -231,65 +231,6 @@ static void pcmcia_check_driver(struct pcmcia_driver *p_drv) } -#ifdef CONFIG_PCMCIA_LOAD_CIS - -/** - * pcmcia_load_firmware - load CIS from userspace if device-provided is broken - * @dev - the pcmcia device which needs a CIS override - * @filename - requested filename in /lib/firmware/ - * - * This uses the in-kernel firmware loading mechanism to use a "fake CIS" if - * the one provided by the card is broken. The firmware files reside in - * /lib/firmware/ in userspace. - */ -static int pcmcia_load_firmware(struct pcmcia_device *dev, char * filename) -{ - struct pcmcia_socket *s = dev->socket; - const struct firmware *fw; - char path[20]; - int ret=-ENOMEM; - cisdump_t *cis; - - if (!filename) - return -EINVAL; - - ds_dbg(1, "trying to load firmware %s\n", filename); - - if (strlen(filename) > 14) - return -EINVAL; - - snprintf(path, 20, "%s", filename); - - if (request_firmware(&fw, path, &dev->dev) == 0) { - if (fw->size >= CISTPL_MAX_CIS_SIZE) - goto release; - - cis = kzalloc(sizeof(cisdump_t), GFP_KERNEL); - if (!cis) - goto release; - - cis->Length = fw->size + 1; - memcpy(cis->Data, fw->data, fw->size); - - if (!pcmcia_replace_cis(s, cis)) - ret = 0; - } - release: - release_firmware(fw); - - return (ret); -} - -#else /* !CONFIG_PCMCIA_LOAD_CIS */ - -static inline int pcmcia_load_firmware(struct pcmcia_device *dev, char * filename) -{ - return -ENODEV; -} - -#endif - - /*======================================================================*/ @@ -356,10 +297,11 @@ static void pcmcia_release_dev(struct device *dev) kfree(p_dev); } -static void pcmcia_add_pseudo_device(struct pcmcia_socket *s) +static void pcmcia_add_device_later(struct pcmcia_socket *s, int mfc) { if (!s->pcmcia_state.device_add_pending) { s->pcmcia_state.device_add_pending = 1; + s->pcmcia_state.mfc_pfc = mfc; schedule_work(&s->device_add); } return; @@ -400,7 +342,7 @@ static int pcmcia_device_probe(struct device * dev) did = p_dev->dev.driver_data; if (did && (did->match_flags & PCMCIA_DEV_ID_MATCH_DEVICE_NO) && (p_dev->socket->device_count == 1) && (p_dev->device_no == 0)) - pcmcia_add_pseudo_device(p_dev->socket); + pcmcia_add_device_later(p_dev->socket, 0); put_module: if (ret) @@ -598,8 +540,6 @@ struct pcmcia_device * pcmcia_device_add(struct pcmcia_socket *s, unsigned int f p_dev->socket = s; p_dev->device_no = (s->device_count++); p_dev->func = function; - if (s->functions <= function) - s->functions = function + 1; p_dev->dev.bus = &pcmcia_bus_type; p_dev->dev.parent = s->dev.dev; @@ -690,6 +630,7 @@ static int pcmcia_card_add(struct pcmcia_socket *s) no_funcs = mfc.nfn; else no_funcs = 1; + s->functions = no_funcs; for (i=0; i < no_funcs; i++) pcmcia_device_add(s, i); @@ -698,11 +639,12 @@ static int pcmcia_card_add(struct pcmcia_socket *s) } -static void pcmcia_delayed_add_pseudo_device(void *data) +static void pcmcia_delayed_add_device(void *data) { struct pcmcia_socket *s = data; - pcmcia_device_add(s, 0); + pcmcia_device_add(s, s->pcmcia_state.mfc_pfc); s->pcmcia_state.device_add_pending = 0; + s->pcmcia_state.mfc_pfc = 0; } static int pcmcia_requery(struct device *dev, void * _data) @@ -751,6 +693,85 @@ static void pcmcia_bus_rescan(struct pcmcia_socket *skt, int new_cis) printk(KERN_INFO "pcmcia: bus_rescan_devices failed\n"); } +#ifdef CONFIG_PCMCIA_LOAD_CIS + +/** + * pcmcia_load_firmware - load CIS from userspace if device-provided is broken + * @dev - the pcmcia device which needs a CIS override + * @filename - requested filename in /lib/firmware/ + * + * This uses the in-kernel firmware loading mechanism to use a "fake CIS" if + * the one provided by the card is broken. The firmware files reside in + * /lib/firmware/ in userspace. + */ +static int pcmcia_load_firmware(struct pcmcia_device *dev, char * filename) +{ + struct pcmcia_socket *s = dev->socket; + const struct firmware *fw; + char path[20]; + int ret = -ENOMEM; + int no_funcs; + int old_funcs; + cisdump_t *cis; + cistpl_longlink_mfc_t mfc; + + if (!filename) + return -EINVAL; + + ds_dbg(1, "trying to load firmware %s\n", filename); + + if (strlen(filename) > 14) + return -EINVAL; + + snprintf(path, 20, "%s", filename); + + if (request_firmware(&fw, path, &dev->dev) == 0) { + if (fw->size >= CISTPL_MAX_CIS_SIZE) + goto release; + + cis = kzalloc(sizeof(cisdump_t), GFP_KERNEL); + if (!cis) + goto release; + + cis->Length = fw->size + 1; + memcpy(cis->Data, fw->data, fw->size); + + if (!pcmcia_replace_cis(s, cis)) + ret = 0; + + /* update information */ + pcmcia_device_query(dev); + + /* does this cis override add or remove functions? */ + old_funcs = s->functions; + + if (!pccard_read_tuple(s, BIND_FN_ALL, CISTPL_LONGLINK_MFC, &mfc)) + no_funcs = mfc.nfn; + else + no_funcs = 1; + s->functions = no_funcs; + + if (old_funcs > no_funcs) + pcmcia_card_remove(s, dev); + else if (no_funcs > old_funcs) + pcmcia_add_device_later(s, 1); + } + release: + release_firmware(fw); + + return (ret); +} + +#else /* !CONFIG_PCMCIA_LOAD_CIS */ + +static inline int pcmcia_load_firmware(struct pcmcia_device *dev, char * filename) +{ + return -ENODEV; +} + +#endif + + static inline int pcmcia_devmatch(struct pcmcia_device *dev, struct pcmcia_device_id *did) { @@ -1250,7 +1271,7 @@ static int __devinit pcmcia_bus_add_socket(struct class_device *class_dev, init_waitqueue_head(&socket->queue); #endif INIT_LIST_HEAD(&socket->devices_list); - INIT_WORK(&socket->device_add, pcmcia_delayed_add_pseudo_device, socket); + INIT_WORK(&socket->device_add, pcmcia_delayed_add_device, socket); memset(&socket->pcmcia_state, 0, sizeof(u8)); socket->device_count = 0; |