diff options
Diffstat (limited to 'drivers/parport/parport_cs.c')
| -rw-r--r-- | drivers/parport/parport_cs.c | 345 |
1 files changed, 70 insertions, 275 deletions
diff --git a/drivers/parport/parport_cs.c b/drivers/parport/parport_cs.c index 24e6aacddb7..e9b52e4a464 100644 --- a/drivers/parport/parport_cs.c +++ b/drivers/parport/parport_cs.c @@ -37,19 +37,17 @@ #include <linux/kernel.h> #include <linux/module.h> #include <linux/init.h> -#include <linux/sched.h> #include <linux/ptrace.h> #include <linux/slab.h> #include <linux/string.h> #include <linux/timer.h> #include <linux/ioport.h> #include <linux/major.h> +#include <linux/interrupt.h> #include <linux/parport.h> #include <linux/parport_pc.h> -#include <pcmcia/cs_types.h> -#include <pcmcia/cs.h> #include <pcmcia/cistpl.h> #include <pcmcia/ds.h> #include <pcmcia/cisreg.h> @@ -67,206 +65,87 @@ MODULE_LICENSE("Dual MPL/GPL"); INT_MODULE_PARM(epp_mode, 1); -#ifdef PCMCIA_DEBUG -INT_MODULE_PARM(pc_debug, PCMCIA_DEBUG); -#define DEBUG(n, args...) if (pc_debug>(n)) printk(KERN_DEBUG args) -static char *version = -"parport_cs.c 1.29 2002/10/11 06:57:41 (David Hinds)"; -#else -#define DEBUG(n, args...) -#endif /*====================================================================*/ #define FORCE_EPP_MODE 0x08 typedef struct parport_info_t { - dev_link_t link; + struct pcmcia_device *p_dev; int ndev; - dev_node_t node; struct parport *port; } parport_info_t; -static dev_link_t *parport_attach(void); -static void parport_detach(dev_link_t *); -static void parport_config(dev_link_t *link); -static void parport_cs_release(dev_link_t *); -static int parport_event(event_t event, int priority, - event_callback_args_t *args); +static void parport_detach(struct pcmcia_device *p_dev); +static int parport_config(struct pcmcia_device *link); +static void parport_cs_release(struct pcmcia_device *); -static dev_info_t dev_info = "parport_cs"; -static dev_link_t *dev_list = NULL; - -/*====================================================================== - - parport_attach() creates an "instance" of the driver, allocating - local data structures for one device. The device is registered - with Card Services. - -======================================================================*/ - -static dev_link_t *parport_attach(void) +static int parport_probe(struct pcmcia_device *link) { parport_info_t *info; - dev_link_t *link; - client_reg_t client_reg; - int ret; - - DEBUG(0, "parport_attach()\n"); - /* Create new parport device */ - info = kmalloc(sizeof(*info), GFP_KERNEL); - if (!info) return NULL; - memset(info, 0, sizeof(*info)); - link = &info->link; link->priv = info; - - link->io.Attributes1 = IO_DATA_PATH_WIDTH_8; - link->io.Attributes2 = IO_DATA_PATH_WIDTH_8; - link->irq.Attributes = IRQ_TYPE_EXCLUSIVE; - link->irq.IRQInfo1 = IRQ_LEVEL_ID; - link->conf.Attributes = CONF_ENABLE_IRQ; - link->conf.Vcc = 50; - link->conf.IntType = INT_MEMORY_AND_IO; - - /* Register with Card Services */ - link->next = dev_list; - dev_list = link; - client_reg.dev_info = &dev_info; - client_reg.Version = 0x0210; - client_reg.event_callback_args.client_data = link; - ret = pcmcia_register_client(&link->handle, &client_reg); - if (ret != CS_SUCCESS) { - cs_error(link->handle, RegisterClient, ret); - parport_detach(link); - return NULL; - } - - return link; -} /* parport_attach */ + dev_dbg(&link->dev, "parport_attach()\n"); -/*====================================================================== + /* Create new parport device */ + info = kzalloc(sizeof(*info), GFP_KERNEL); + if (!info) return -ENOMEM; + link->priv = info; + info->p_dev = link; - This deletes a driver "instance". The device is de-registered - with Card Services. If it has been released, all local data - structures are freed. Otherwise, the structures will be freed - when the device is released. + link->config_flags |= CONF_ENABLE_IRQ | CONF_AUTO_SET_IO; -======================================================================*/ + return parport_config(link); +} /* parport_attach */ -static void parport_detach(dev_link_t *link) +static void parport_detach(struct pcmcia_device *link) { - dev_link_t **linkp; - int ret; + dev_dbg(&link->dev, "parport_detach\n"); + + parport_cs_release(link); - DEBUG(0, "parport_detach(0x%p)\n", link); - - /* Locate device structure */ - for (linkp = &dev_list; *linkp; linkp = &(*linkp)->next) - if (*linkp == link) break; - if (*linkp == NULL) - return; - - if (link->state & DEV_CONFIG) - parport_cs_release(link); - - if (link->handle) { - ret = pcmcia_deregister_client(link->handle); - if (ret != CS_SUCCESS) - cs_error(link->handle, DeregisterClient, ret); - } - - /* Unlink, free device structure */ - *linkp = link->next; kfree(link->priv); - } /* parport_detach */ -/*====================================================================== - - parport_config() is scheduled to run after a CARD_INSERTION event - is received, to configure the PCMCIA socket, and to make the - parport device available to the system. - -======================================================================*/ +static int parport_config_check(struct pcmcia_device *p_dev, void *priv_data) +{ + p_dev->resource[0]->flags &= ~IO_DATA_PATH_WIDTH; + p_dev->resource[0]->flags |= IO_DATA_PATH_WIDTH_8; + p_dev->resource[1]->flags &= ~IO_DATA_PATH_WIDTH; + p_dev->resource[1]->flags |= IO_DATA_PATH_WIDTH_8; -#define CS_CHECK(fn, ret) \ -do { last_fn = (fn); if ((last_ret = (ret)) != 0) goto cs_failed; } while (0) + return pcmcia_request_io(p_dev); +} -void parport_config(dev_link_t *link) +static int parport_config(struct pcmcia_device *link) { - client_handle_t handle = link->handle; parport_info_t *info = link->priv; - tuple_t tuple; - u_short buf[128]; - cisparse_t parse; - config_info_t conf; - cistpl_cftable_entry_t *cfg = &parse.cftable_entry; - cistpl_cftable_entry_t dflt = { 0 }; struct parport *p; - int last_ret, last_fn; - - DEBUG(0, "parport_config(0x%p)\n", link); - - tuple.TupleData = (cisdata_t *)buf; - tuple.TupleOffset = 0; tuple.TupleDataMax = 255; - tuple.Attributes = 0; - tuple.DesiredTuple = CISTPL_CONFIG; - CS_CHECK(GetFirstTuple, pcmcia_get_first_tuple(handle, &tuple)); - CS_CHECK(GetTupleData, pcmcia_get_tuple_data(handle, &tuple)); - CS_CHECK(ParseTuple, pcmcia_parse_tuple(handle, &tuple, &parse)); - link->conf.ConfigBase = parse.config.base; - link->conf.Present = parse.config.rmask[0]; - - /* Configure card */ - link->state |= DEV_CONFIG; + int ret; - /* Not sure if this is right... look up the current Vcc */ - CS_CHECK(GetConfigurationInfo, pcmcia_get_configuration_info(handle, &conf)); - - tuple.DesiredTuple = CISTPL_CFTABLE_ENTRY; - tuple.Attributes = 0; - CS_CHECK(GetFirstTuple, pcmcia_get_first_tuple(handle, &tuple)); - while (1) { - if (pcmcia_get_tuple_data(handle, &tuple) != 0 || - pcmcia_parse_tuple(handle, &tuple, &parse) != 0) - goto next_entry; - - if ((cfg->io.nwin > 0) || (dflt.io.nwin > 0)) { - cistpl_io_t *io = (cfg->io.nwin) ? &cfg->io : &dflt.io; - link->conf.ConfigIndex = cfg->index; - if (epp_mode) - link->conf.ConfigIndex |= FORCE_EPP_MODE; - link->io.BasePort1 = io->win[0].base; - link->io.NumPorts1 = io->win[0].len; - link->io.IOAddrLines = io->flags & CISTPL_IO_LINES_MASK; - if (io->nwin == 2) { - link->io.BasePort2 = io->win[1].base; - link->io.NumPorts2 = io->win[1].len; - } - if (pcmcia_request_io(link->handle, &link->io) != 0) - goto next_entry; - /* If we've got this far, we're done */ - break; - } - - next_entry: - if (cfg->flags & CISTPL_CFTABLE_DEFAULT) dflt = *cfg; - CS_CHECK(GetNextTuple, pcmcia_get_next_tuple(handle, &tuple)); - } - - CS_CHECK(RequestIRQ, pcmcia_request_irq(handle, &link->irq)); - CS_CHECK(RequestConfiguration, pcmcia_request_configuration(handle, &link->conf)); - - release_region(link->io.BasePort1, link->io.NumPorts1); - if (link->io.NumPorts2) - release_region(link->io.BasePort2, link->io.NumPorts2); - p = parport_pc_probe_port(link->io.BasePort1, link->io.BasePort2, - link->irq.AssignedIRQ, PARPORT_DMA_NONE, - NULL); + dev_dbg(&link->dev, "parport_config\n"); + + if (epp_mode) + link->config_index |= FORCE_EPP_MODE; + + ret = pcmcia_loop_config(link, parport_config_check, NULL); + if (ret) + goto failed; + + if (!link->irq) + goto failed; + ret = pcmcia_enable_device(link); + if (ret) + goto failed; + + p = parport_pc_probe_port(link->resource[0]->start, + link->resource[1]->start, + link->irq, PARPORT_DMA_NONE, + &link->dev, IRQF_SHARED); if (p == NULL) { printk(KERN_NOTICE "parport_cs: parport_pc_probe_port() at " - "0x%3x, irq %u failed\n", link->io.BasePort1, - link->irq.AssignedIRQ); + "0x%3x, irq %u failed\n", + (unsigned int) link->resource[0]->start, + link->irq); goto failed; } @@ -274,101 +153,34 @@ void parport_config(dev_link_t *link) if (epp_mode) p->modes |= PARPORT_MODE_TRISTATE | PARPORT_MODE_EPP; info->ndev = 1; - info->node.major = LP_MAJOR; - info->node.minor = p->number; info->port = p; - strcpy(info->node.dev_name, p->name); - link->dev = &info->node; - link->state &= ~DEV_CONFIG_PENDING; - return; - -cs_failed: - cs_error(link->handle, last_fn, last_ret); + return 0; + failed: parport_cs_release(link); - link->state &= ~DEV_CONFIG_PENDING; - + return -ENODEV; } /* parport_config */ -/*====================================================================== - - After a card is removed, parport_cs_release() will unregister the - device, and release the PCMCIA configuration. If the device is - still open, this will be postponed until it is closed. - -======================================================================*/ - -void parport_cs_release(dev_link_t *link) +static void parport_cs_release(struct pcmcia_device *link) { - parport_info_t *info = link->priv; - - DEBUG(0, "parport_release(0x%p)\n", link); - - if (info->ndev) { - struct parport *p = info->port; - parport_pc_unregister_port(p); - request_region(link->io.BasePort1, link->io.NumPorts1, - info->node.dev_name); - if (link->io.NumPorts2) - request_region(link->io.BasePort2, link->io.NumPorts2, - info->node.dev_name); - } - info->ndev = 0; - link->dev = NULL; - - pcmcia_release_configuration(link->handle); - pcmcia_release_io(link->handle, &link->io); - pcmcia_release_irq(link->handle, &link->irq); - - link->state &= ~DEV_CONFIG; + parport_info_t *info = link->priv; -} /* parport_cs_release */ + dev_dbg(&link->dev, "parport_release\n"); -/*====================================================================== - - The card status event handler. Mostly, this schedules other - stuff to run after an event is received. - -======================================================================*/ + if (info->ndev) { + struct parport *p = info->port; + parport_pc_unregister_port(p); + } + info->ndev = 0; -int parport_event(event_t event, int priority, - event_callback_args_t *args) -{ - dev_link_t *link = args->client_data; + pcmcia_disable_device(link); +} /* parport_cs_release */ - DEBUG(1, "parport_event(0x%06x)\n", event); - - switch (event) { - case CS_EVENT_CARD_REMOVAL: - link->state &= ~DEV_PRESENT; - if (link->state & DEV_CONFIG) - parport_cs_release(link); - break; - case CS_EVENT_CARD_INSERTION: - link->state |= DEV_PRESENT | DEV_CONFIG_PENDING; - parport_config(link); - break; - case CS_EVENT_PM_SUSPEND: - link->state |= DEV_SUSPEND; - /* Fall through... */ - case CS_EVENT_RESET_PHYSICAL: - if (link->state & DEV_CONFIG) - pcmcia_release_configuration(link->handle); - break; - case CS_EVENT_PM_RESUME: - link->state &= ~DEV_SUSPEND; - /* Fall through... */ - case CS_EVENT_CARD_RESET: - if (DEV_OK(link)) - pcmcia_request_configuration(link->handle, &link->conf); - break; - } - return 0; -} /* parport_event */ -static struct pcmcia_device_id parport_ids[] = { +static const struct pcmcia_device_id parport_ids[] = { PCMCIA_DEVICE_FUNC_ID(3), + PCMCIA_MFC_DEVICE_PROD_ID12(1,"Elan","Serial+Parallel Port: SP230",0x3beb8cf2,0xdb9e58bc), PCMCIA_DEVICE_MANF_CARD(0x0137, 0x0003), PCMCIA_DEVICE_NULL }; @@ -376,26 +188,9 @@ MODULE_DEVICE_TABLE(pcmcia, parport_ids); static struct pcmcia_driver parport_cs_driver = { .owner = THIS_MODULE, - .drv = { - .name = "parport_cs", - }, - .attach = parport_attach, - .event = parport_event, - .detach = parport_detach, + .name = "parport_cs", + .probe = parport_probe, + .remove = parport_detach, .id_table = parport_ids, - }; - -static int __init init_parport_cs(void) -{ - return pcmcia_register_driver(&parport_cs_driver); -} - -static void __exit exit_parport_cs(void) -{ - pcmcia_unregister_driver(&parport_cs_driver); - BUG_ON(dev_list != NULL); -} - -module_init(init_parport_cs); -module_exit(exit_parport_cs); +module_pcmcia_driver(parport_cs_driver); |
