diff options
author | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-16 15:20:36 -0700 |
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committer | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-16 15:20:36 -0700 |
commit | 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch) | |
tree | 0bba044c4ce775e45a88a51686b5d9f90697ea9d /drivers/telephony/ixj_pcmcia.c |
Linux-2.6.12-rc2
Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.
Let it rip!
Diffstat (limited to 'drivers/telephony/ixj_pcmcia.c')
-rw-r--r-- | drivers/telephony/ixj_pcmcia.c | 321 |
1 files changed, 321 insertions, 0 deletions
diff --git a/drivers/telephony/ixj_pcmcia.c b/drivers/telephony/ixj_pcmcia.c new file mode 100644 index 000000000000..e1ef0d7ee8d1 --- /dev/null +++ b/drivers/telephony/ixj_pcmcia.c @@ -0,0 +1,321 @@ +#include "ixj-ver.h" + +#include <linux/module.h> + +#include <linux/init.h> +#include <linux/sched.h> +#include <linux/kernel.h> /* printk() */ +#include <linux/fs.h> /* everything... */ +#include <linux/errno.h> /* error codes */ +#include <linux/slab.h> + +#include <pcmcia/version.h> +#include <pcmcia/cs_types.h> +#include <pcmcia/cs.h> +#include <pcmcia/cistpl.h> +#include <pcmcia/ds.h> + +#include "ixj.h" + +/* + * PCMCIA service support for Quicknet cards + */ + +#ifdef PCMCIA_DEBUG +static int pc_debug = PCMCIA_DEBUG; +module_param(pc_debug, int, 0644); +#define DEBUG(n, args...) if (pc_debug>(n)) printk(KERN_DEBUG args) +#else +#define DEBUG(n, args...) +#endif + +typedef struct ixj_info_t { + int ndev; + dev_node_t node; + struct ixj *port; +} ixj_info_t; + +static dev_link_t *ixj_attach(void); +static void ixj_detach(dev_link_t *); +static void ixj_config(dev_link_t * link); +static void ixj_cs_release(dev_link_t * link); +static int ixj_event(event_t event, int priority, event_callback_args_t * args); +static dev_info_t dev_info = "ixj_cs"; +static dev_link_t *dev_list = NULL; + +static dev_link_t *ixj_attach(void) +{ + client_reg_t client_reg; + dev_link_t *link; + int ret; + DEBUG(0, "ixj_attach()\n"); + /* Create new ixj device */ + link = kmalloc(sizeof(struct dev_link_t), GFP_KERNEL); + if (!link) + return NULL; + memset(link, 0, sizeof(struct dev_link_t)); + link->io.Attributes1 = IO_DATA_PATH_WIDTH_8; + link->io.Attributes2 = IO_DATA_PATH_WIDTH_8; + link->io.IOAddrLines = 3; + link->conf.Vcc = 50; + link->conf.IntType = INT_MEMORY_AND_IO; + link->priv = kmalloc(sizeof(struct ixj_info_t), GFP_KERNEL); + if (!link->priv) { + kfree(link); + return NULL; + } + memset(link->priv, 0, sizeof(struct ixj_info_t)); + /* Register with Card Services */ + link->next = dev_list; + dev_list = link; + client_reg.dev_info = &dev_info; + client_reg.EventMask = + CS_EVENT_CARD_INSERTION | CS_EVENT_CARD_REMOVAL | + CS_EVENT_RESET_PHYSICAL | CS_EVENT_CARD_RESET | + CS_EVENT_PM_SUSPEND | CS_EVENT_PM_RESUME; + client_reg.event_handler = &ixj_event; + 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); + ixj_detach(link); + return NULL; + } + return link; +} + +static void ixj_detach(dev_link_t * link) +{ + dev_link_t **linkp; + int ret; + DEBUG(0, "ixj_detach(0x%p)\n", link); + for (linkp = &dev_list; *linkp; linkp = &(*linkp)->next) + if (*linkp == link) + break; + if (*linkp == NULL) + return; + link->state &= ~DEV_RELEASE_PENDING; + if (link->state & DEV_CONFIG) + ixj_cs_release(link); + if (link->handle) { + ret = pcmcia_deregister_client(link->handle); + if (ret != CS_SUCCESS) + cs_error(link->handle, DeregisterClient, ret); + } + /* Unlink device structure, free bits */ + *linkp = link->next; + kfree(link->priv); + kfree(link); +} + +#define CS_CHECK(fn, ret) \ +do { last_fn = (fn); if ((last_ret = (ret)) != 0) goto cs_failed; } while (0) + +static void ixj_get_serial(dev_link_t * link, IXJ * j) +{ + client_handle_t handle; + tuple_t tuple; + u_short buf[128]; + char *str; + int last_ret, last_fn, i, place; + handle = link->handle; + DEBUG(0, "ixj_get_serial(0x%p)\n", link); + tuple.TupleData = (cisdata_t *) buf; + tuple.TupleOffset = 0; + tuple.TupleDataMax = 80; + tuple.Attributes = 0; + tuple.DesiredTuple = CISTPL_VERS_1; + CS_CHECK(GetFirstTuple, pcmcia_get_first_tuple(handle, &tuple)); + CS_CHECK(GetTupleData, pcmcia_get_tuple_data(handle, &tuple)); + str = (char *) buf; + printk("PCMCIA Version %d.%d\n", str[0], str[1]); + str += 2; + printk("%s", str); + str = str + strlen(str) + 1; + printk(" %s", str); + str = str + strlen(str) + 1; + place = 1; + for (i = strlen(str) - 1; i >= 0; i--) { + switch (str[i]) { + case '0': + case '1': + case '2': + case '3': + case '4': + case '5': + case '6': + case '7': + case '8': + case '9': + j->serial += (str[i] - 48) * place; + break; + case 'A': + case 'B': + case 'C': + case 'D': + case 'E': + case 'F': + j->serial += (str[i] - 55) * place; + break; + case 'a': + case 'b': + case 'c': + case 'd': + case 'e': + case 'f': + j->serial += (str[i] - 87) * place; + break; + } + place = place * 0x10; + } + str = str + strlen(str) + 1; + printk(" version %s\n", str); + cs_failed: + return; +} + +static void ixj_config(dev_link_t * link) +{ + IXJ *j; + client_handle_t handle; + ixj_info_t *info; + 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 + }; + int last_ret, last_fn; + handle = link->handle; + info = link->priv; + DEBUG(0, "ixj_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]; + link->state |= DEV_CONFIG; + 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; + link->io.BasePort1 = io->win[0].base; + link->io.NumPorts1 = io->win[0].len; + 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(RequestConfiguration, pcmcia_request_configuration(handle, &link->conf)); + + /* + * Register the card with the core. + */ + j=ixj_pcmcia_probe(link->io.BasePort1,link->io.BasePort1 + 0x10); + + info->ndev = 1; + info->node.major = PHONE_MAJOR; + link->dev = &info->node; + ixj_get_serial(link, j); + link->state &= ~DEV_CONFIG_PENDING; + return; + cs_failed: + cs_error(link->handle, last_fn, last_ret); + ixj_cs_release(link); +} + +static void ixj_cs_release(dev_link_t *link) +{ + ixj_info_t *info = link->priv; + DEBUG(0, "ixj_cs_release(0x%p)\n", link); + info->ndev = 0; + link->dev = NULL; + pcmcia_release_configuration(link->handle); + pcmcia_release_io(link->handle, &link->io); + link->state &= ~DEV_CONFIG; +} + +static int ixj_event(event_t event, int priority, event_callback_args_t * args) +{ + dev_link_t *link = args->client_data; + DEBUG(1, "ixj_event(0x%06x)\n", event); + switch (event) { + case CS_EVENT_CARD_REMOVAL: + link->state &= ~DEV_PRESENT; + if (link->state & DEV_CONFIG) { + link->state |= DEV_RELEASE_PENDING; + ixj_cs_release(link); + } + break; + case CS_EVENT_CARD_INSERTION: + link->state |= DEV_PRESENT | DEV_CONFIG_PENDING; + ixj_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; +} + +static struct pcmcia_driver ixj_driver = { + .owner = THIS_MODULE, + .drv = { + .name = "ixj_cs", + }, + .attach = ixj_attach, + .detach = ixj_detach, +}; + +static int __init ixj_pcmcia_init(void) +{ + return pcmcia_register_driver(&ixj_driver); +} + +static void ixj_pcmcia_exit(void) +{ + pcmcia_unregister_driver(&ixj_driver); + BUG_ON(dev_list != NULL); +} + +module_init(ixj_pcmcia_init); +module_exit(ixj_pcmcia_exit); + +MODULE_LICENSE("GPL"); |