/* * Driver for Sound Core PDAudioCF soundcard * * Copyright (c) 2003 by Jaroslav Kysela <perex@suse.cz> * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 2 of the License, or * (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */ #include <sound/driver.h> #include <sound/core.h> #include <linux/slab.h> #include <linux/moduleparam.h> #include <pcmcia/ciscode.h> #include <pcmcia/cisreg.h> #include "pdaudiocf.h" #include <sound/initval.h> #include <linux/init.h> /* */ #define CARD_NAME "PDAudio-CF" MODULE_AUTHOR("Jaroslav Kysela <perex@suse.cz>"); MODULE_DESCRIPTION("Sound Core " CARD_NAME); MODULE_LICENSE("GPL"); MODULE_SUPPORTED_DEVICE("{{Sound Core," CARD_NAME "}}"); static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX; /* Index 0-MAX */ static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR; /* ID for this card */ static int enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_PNP; /* Enable switches */ module_param_array(index, int, NULL, 0444); MODULE_PARM_DESC(index, "Index value for " CARD_NAME " soundcard."); module_param_array(id, charp, NULL, 0444); MODULE_PARM_DESC(id, "ID string for " CARD_NAME " soundcard."); module_param_array(enable, bool, NULL, 0444); MODULE_PARM_DESC(enable, "Enable " CARD_NAME " soundcard."); /* */ static dev_info_t dev_info = "snd-pdaudiocf"; static snd_card_t *card_list[SNDRV_CARDS]; static dev_link_t *dev_list; /* * prototypes */ static void pdacf_config(dev_link_t *link); static int pdacf_event(event_t event, int priority, event_callback_args_t *args); static void snd_pdacf_detach(dev_link_t *link); static void pdacf_release(dev_link_t *link) { if (link->state & DEV_CONFIG) { /* release cs resources */ pcmcia_release_configuration(link->handle); pcmcia_release_io(link->handle, &link->io); pcmcia_release_irq(link->handle, &link->irq); link->state &= ~DEV_CONFIG; } } /* * destructor */ static int snd_pdacf_free(pdacf_t *pdacf) { dev_link_t *link = &pdacf->link; pdacf_release(link); /* Break the link with Card Services */ if (link->handle) pcmcia_deregister_client(link->handle); card_list[pdacf->index] = NULL; pdacf->card = NULL; kfree(pdacf); return 0; } static int snd_pdacf_dev_free(snd_device_t *device) { pdacf_t *chip = device->device_data; return snd_pdacf_free(chip); } /* * snd_pdacf_attach - attach callback for cs */ static dev_link_t *snd_pdacf_attach(void) { client_reg_t client_reg; /* Register with cardmgr */ dev_link_t *link; /* Info for cardmgr */ int i, ret; pdacf_t *pdacf; snd_card_t *card; static snd_device_ops_t ops = { .dev_free = snd_pdacf_dev_free, }; snd_printdd(KERN_DEBUG "pdacf_attach called\n"); /* find an empty slot from the card list */ for (i = 0; i < SNDRV_CARDS; i++) { if (! card_list[i]) break; } if (i >= SNDRV_CARDS) { snd_printk(KERN_ERR "pdacf: too many cards found\n"); return NULL; } if (! enable[i]) return NULL; /* disabled explicitly */ /* ok, create a card instance */ card = snd_card_new(index[i], id[i], THIS_MODULE, 0); if (card == NULL) { snd_printk(KERN_ERR "pdacf: cannot create a card instance\n"); return NULL; } pdacf = snd_pdacf_create(card); if (! pdacf) return NULL; if (snd_device_new(card, SNDRV_DEV_LOWLEVEL, pdacf, &ops) < 0) { kfree(pdacf); snd_card_free(card); return NULL; } pdacf->index = i; card_list[i] = card; link = &pdacf->link; link->priv = pdacf; link->io.Attributes1 = IO_DATA_PATH_WIDTH_AUTO; link->io.NumPorts1 = 16; link->irq.Attributes = IRQ_TYPE_EXCLUSIVE | IRQ_HANDLE_PRESENT | IRQ_FORCED_PULSE; // link->irq.Attributes = IRQ_TYPE_DYNAMIC_SHARING|IRQ_FIRST_SHARED; link->irq.IRQInfo1 = 0 /* | IRQ_LEVEL_ID */; link->irq.Handler = pdacf_interrupt; link->irq.Instance = pdacf; link->conf.Attributes = CONF_ENABLE_IRQ; link->conf.IntType = INT_MEMORY_AND_IO; link->conf.ConfigIndex = 1; link->conf.Present = PRESENT_OPTION; /* Chain drivers */ link->next = dev_list; dev_list = link; /* Register with Card Services */ 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); snd_pdacf_detach(link); return NULL; } return link; } /** * snd_pdacf_assign_resources - initialize the hardware and card instance. * @port: i/o port for the card * @irq: irq number for the card * * this function assigns the specified port and irq, boot the card, * create pcm and control instances, and initialize the rest hardware. * * returns 0 if successful, or a negative error code. */ static int snd_pdacf_assign_resources(pdacf_t *pdacf, int port, int irq) { int err; snd_card_t *card = pdacf->card; snd_printdd(KERN_DEBUG "pdacf assign resources: port = 0x%x, irq = %d\n", port, irq); pdacf->port = port; pdacf->irq = irq; pdacf->chip_status |= PDAUDIOCF_STAT_IS_CONFIGURED; err = snd_pdacf_ak4117_create(pdacf); if (err < 0) return err; strcpy(card->driver, "PDAudio-CF"); sprintf(card->shortname, "Core Sound %s", card->driver); sprintf(card->longname, "%s at 0x%x, irq %i", card->shortname, port, irq); err = snd_pdacf_pcm_new(pdacf); if (err < 0) return err; snd_card_set_pm_callback(card, snd_pdacf_suspend, snd_pdacf_resume, pdacf); if ((err = snd_card_register(card)) < 0) return err; return 0; } /* * snd_pdacf_detach - detach callback for cs */ static void snd_pdacf_detach(dev_link_t *link) { pdacf_t *chip = link->priv; snd_printdd(KERN_DEBUG "pdacf_detach called\n"); /* Remove the interface data from the linked list */ { dev_link_t **linkp; /* Locate device structure */ for (linkp = &dev_list; *linkp; linkp = &(*linkp)->next) if (*linkp == link) break; if (*linkp) *linkp = link->next; } if (chip->chip_status & PDAUDIOCF_STAT_IS_CONFIGURED) snd_pdacf_powerdown(chip); chip->chip_status |= PDAUDIOCF_STAT_IS_STALE; /* to be sure */ snd_card_disconnect(chip->card); snd_card_free_in_thread(chip->card); } /* * configuration callback */ #define CS_CHECK(fn, ret) \ do { last_fn = (fn); if ((last_ret = (ret)) != 0) goto cs_failed; } while (0) static void pdacf_config(dev_link_t *link) { client_handle_t handle = link->handle; pdacf_t *pdacf = link->priv; tuple_t tuple; cisparse_t *parse = NULL; config_info_t conf; u_short buf[32]; int last_fn, last_ret; snd_printdd(KERN_DEBUG "pdacf_config called\n"); parse = kmalloc(sizeof(*parse), GFP_KERNEL); if (! parse) { snd_printk(KERN_ERR "pdacf_config: cannot allocate\n"); return; } tuple.DesiredTuple = CISTPL_CFTABLE_ENTRY; tuple.Attributes = 0; tuple.TupleData = (cisdata_t *)buf; tuple.TupleDataMax = sizeof(buf); tuple.TupleOffset = 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.ConfigIndex = 0x5; kfree(parse); CS_CHECK(GetConfigurationInfo, pcmcia_get_configuration_info(handle, &conf)); link->conf.Vcc = conf.Vcc; /* Configure card */ link->state |= DEV_CONFIG; CS_CHECK(RequestIO, pcmcia_request_io(handle, &link->io)); CS_CHECK(RequestIRQ, pcmcia_request_irq(link->handle, &link->irq)); CS_CHECK(RequestConfiguration, pcmcia_request_configuration(link->handle, &link->conf)); if (snd_pdacf_assign_resources(pdacf, link->io.BasePort1, link->irq.AssignedIRQ) < 0) goto failed; link->dev = &pdacf->node; link->state &= ~DEV_CONFIG_PENDING; return; cs_failed: cs_error(link->handle, last_fn, last_ret); failed: pcmcia_release_configuration(link->handle); pcmcia_release_io(link->handle, &link->io); pcmcia_release_irq(link->handle, &link->irq); } /* * event callback */ static int pdacf_event(event_t event, int priority, event_callback_args_t *args) { dev_link_t *link = args->client_data; pdacf_t *chip = link->priv; switch (event) { case CS_EVENT_CARD_REMOVAL: snd_printdd(KERN_DEBUG "CARD_REMOVAL..\n"); link->state &= ~DEV_PRESENT; if (link->state & DEV_CONFIG) { chip->chip_status |= PDAUDIOCF_STAT_IS_STALE; } break; case CS_EVENT_CARD_INSERTION: snd_printdd(KERN_DEBUG "CARD_INSERTION..\n"); link->state |= DEV_PRESENT; pdacf_config(link); break; #ifdef CONFIG_PM case CS_EVENT_PM_SUSPEND: snd_printdd(KERN_DEBUG "SUSPEND\n"); link->state |= DEV_SUSPEND; if (chip) { snd_printdd(KERN_DEBUG "snd_pdacf_suspend calling\n"); snd_pdacf_suspend(chip->card, PMSG_SUSPEND); } /* Fall through... */ case CS_EVENT_RESET_PHYSICAL: snd_printdd(KERN_DEBUG "RESET_PHYSICAL\n"); if (link->state & DEV_CONFIG) pcmcia_release_configuration(link->handle); break; case CS_EVENT_PM_RESUME: snd_printdd(KERN_DEBUG "RESUME\n"); link->state &= ~DEV_SUSPEND; /* Fall through... */ case CS_EVENT_CARD_RESET: snd_printdd(KERN_DEBUG "CARD_RESET\n"); if (DEV_OK(link)) { snd_printdd(KERN_DEBUG "requestconfig...\n"); pcmcia_request_configuration(link->handle, &link->conf); if (chip) { snd_printdd(KERN_DEBUG "calling snd_pdacf_resume\n"); snd_pdacf_resume(chip->card); } } snd_printdd(KERN_DEBUG "resume done!\n"); break; #endif } return 0; } /* * Module entry points */ static struct pcmcia_device_id snd_pdacf_ids[] = { PCMCIA_DEVICE_MANF_CARD(0x015d, 0x4c45), PCMCIA_DEVICE_NULL }; MODULE_DEVICE_TABLE(pcmcia, snd_pdacf_ids); static struct pcmcia_driver pdacf_cs_driver = { .owner = THIS_MODULE, .drv = { .name = "snd-pdaudiocf", }, .attach = snd_pdacf_attach, .event = pdacf_event, .detach = snd_pdacf_detach, .id_table = snd_pdacf_ids, }; static int __init init_pdacf(void) { return pcmcia_register_driver(&pdacf_cs_driver); } static void __exit exit_pdacf(void) { pcmcia_unregister_driver(&pdacf_cs_driver); BUG_ON(dev_list != NULL); } module_init(init_pdacf); module_exit(exit_pdacf);