From 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 Mon Sep 17 00:00:00 2001 From: Linus Torvalds Date: Sat, 16 Apr 2005 15:20:36 -0700 Subject: 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! --- sound/pcmcia/pdaudiocf/pdaudiocf.c | 404 +++++++++++++++++++++++++++++++++++++ 1 file changed, 404 insertions(+) create mode 100644 sound/pcmcia/pdaudiocf/pdaudiocf.c (limited to 'sound/pcmcia/pdaudiocf/pdaudiocf.c') diff --git a/sound/pcmcia/pdaudiocf/pdaudiocf.c b/sound/pcmcia/pdaudiocf/pdaudiocf.c new file mode 100644 index 00000000000..f72c81cc995 --- /dev/null +++ b/sound/pcmcia/pdaudiocf/pdaudiocf.c @@ -0,0 +1,404 @@ +/* + * Driver for Sound Core PDAudioCF soundcard + * + * Copyright (c) 2003 by Jaroslav Kysela + * + * 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 +#include +#include +#include +#include +#include +#include +#include "pdaudiocf.h" +#include +#include + +/* + */ + +#define CARD_NAME "PDAudio-CF" + +MODULE_AUTHOR("Jaroslav Kysela "); +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.EventMask = + CS_EVENT_CARD_INSERTION | CS_EVENT_CARD_REMOVAL +#ifdef CONFIG_PM + | CS_EVENT_RESET_PHYSICAL | CS_EVENT_CARD_RESET + | CS_EVENT_PM_SUSPEND | CS_EVENT_PM_RESUME +#endif + ; + client_reg.event_handler = &pdacf_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); + 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_driver pdacf_cs_driver = { + .owner = THIS_MODULE, + .drv = { + .name = "snd-pdaudiocf", + }, + .attach = snd_pdacf_attach, + .detach = snd_pdacf_detach +}; + +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); -- cgit v1.2.3