diff options
author | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-17 00:20:36 +0200 |
---|---|---|
committer | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-17 00:20:36 +0200 |
commit | 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch) | |
tree | 0bba044c4ce775e45a88a51686b5d9f90697ea9d /sound/pcmcia/vx/vx_entry.c | |
download | linux-1da177e4c3f41524e886b7f1b8a0c1fc7321cac2.tar.xz linux-1da177e4c3f41524e886b7f1b8a0c1fc7321cac2.zip |
Linux-2.6.12-rc2v2.6.12-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 'sound/pcmcia/vx/vx_entry.c')
-rw-r--r-- | sound/pcmcia/vx/vx_entry.c | 384 |
1 files changed, 384 insertions, 0 deletions
diff --git a/sound/pcmcia/vx/vx_entry.c b/sound/pcmcia/vx/vx_entry.c new file mode 100644 index 000000000000..53d8172c52ae --- /dev/null +++ b/sound/pcmcia/vx/vx_entry.c @@ -0,0 +1,384 @@ +/* + * Driver for Digigram VXpocket soundcards + * + * PCMCIA entry part + * + * Copyright (c) 2002 by Takashi Iwai <tiwai@suse.de> + * + * 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 "vxpocket.h" +#include <pcmcia/ciscode.h> +#include <pcmcia/cisreg.h> + + +MODULE_AUTHOR("Takashi Iwai <tiwai@suse.de>"); +MODULE_DESCRIPTION("Common routines for Digigram PCMCIA VX drivers"); +MODULE_LICENSE("GPL"); + +/* + * prototypes + */ +static void vxpocket_config(dev_link_t *link); +static int vxpocket_event(event_t event, int priority, event_callback_args_t *args); + + +static void vxpocket_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_vxpocket_free(vx_core_t *chip) +{ + struct snd_vxpocket *vxp = (struct snd_vxpocket *)chip; + struct snd_vxp_entry *hw; + dev_link_t *link = &vxp->link; + + vxpocket_release(link); + + /* Break the link with Card Services */ + if (link->handle) + pcmcia_deregister_client(link->handle); + + hw = vxp->hw_entry; + if (hw) + hw->card_list[vxp->index] = NULL; + chip->card = NULL; + if (chip->dev) + kfree(chip->dev); + + snd_vx_free_firmware(chip); + kfree(chip); + return 0; +} + +static int snd_vxpocket_dev_free(snd_device_t *device) +{ + vx_core_t *chip = device->device_data; + return snd_vxpocket_free(chip); +} + +/* + * snd_vxpocket_attach - attach callback for cs + * @hw: the hardware information + */ +dev_link_t *snd_vxpocket_attach(struct snd_vxp_entry *hw) +{ + client_reg_t client_reg; /* Register with cardmgr */ + dev_link_t *link; /* Info for cardmgr */ + int i, ret; + vx_core_t *chip; + struct snd_vxpocket *vxp; + snd_card_t *card; + static snd_device_ops_t ops = { + .dev_free = snd_vxpocket_dev_free, + }; + + snd_printdd(KERN_DEBUG "vxpocket_attach called\n"); + /* find an empty slot from the card list */ + for (i = 0; i < SNDRV_CARDS; i++) { + if (! hw->card_list[i]) + break; + } + if (i >= SNDRV_CARDS) { + snd_printk(KERN_ERR "vxpocket: too many cards found\n"); + return NULL; + } + if (! hw->enable_table[i]) + return NULL; /* disabled explicitly */ + + /* ok, create a card instance */ + card = snd_card_new(hw->index_table[i], hw->id_table[i], THIS_MODULE, 0); + if (card == NULL) { + snd_printk(KERN_ERR "vxpocket: cannot create a card instance\n"); + return NULL; + } + + chip = snd_vx_create(card, hw->hardware, hw->ops, + sizeof(struct snd_vxpocket) - sizeof(vx_core_t)); + if (! chip) + return NULL; + +#ifdef SND_VX_FW_LOADER + /* fake a device here since pcmcia doesn't give a valid device... */ + chip->dev = kcalloc(1, sizeof(*chip->dev), GFP_KERNEL); + if (! chip->dev) { + snd_printk(KERN_ERR "vxp: can't malloc chip->dev\n"); + kfree(chip); + snd_card_free(card); + return NULL; + } + device_initialize(chip->dev); + sprintf(chip->dev->bus_id, "vxpocket%d", i); +#endif + + if (snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops) < 0) { + kfree(chip); + snd_card_free(card); + return NULL; + } + + vxp = (struct snd_vxpocket *)chip; + vxp->index = i; + vxp->hw_entry = hw; + chip->ibl.size = hw->ibl[i]; + hw->card_list[i] = chip; + + link = &vxp->link; + link->priv = chip; + + link->io.Attributes1 = IO_DATA_PATH_WIDTH_AUTO; + link->io.NumPorts1 = 16; + + link->irq.Attributes = IRQ_TYPE_EXCLUSIVE | IRQ_HANDLE_PRESENT; + // link->irq.Attributes = IRQ_TYPE_DYNAMIC_SHARING|IRQ_FIRST_SHARED; + + link->irq.IRQInfo1 = IRQ_LEVEL_ID; + link->irq.Handler = &snd_vx_irq_handler; + link->irq.Instance = chip; + + link->conf.Attributes = CONF_ENABLE_IRQ; + link->conf.Vcc = 50; + link->conf.IntType = INT_MEMORY_AND_IO; + link->conf.ConfigIndex = 1; + link->conf.Present = PRESENT_OPTION; + + /* Register with Card Services */ + memset(&client_reg, 0, sizeof(client_reg)); + client_reg.dev_info = hw->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 = &vxpocket_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_card_free(card); + return NULL; + } + + /* Chain drivers */ + link->next = hw->dev_list; + hw->dev_list = link; + + /* snd_card_set_pm_callback(card, snd_vxpocket_suspend, snd_vxpocket_resume, chip); */ + + return link; +} + + +/** + * snd_vxpocket_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_vxpocket_assign_resources(vx_core_t *chip, int port, int irq) +{ + int err; + snd_card_t *card = chip->card; + struct snd_vxpocket *vxp = (struct snd_vxpocket *)chip; + + snd_printdd(KERN_DEBUG "vxpocket assign resources: port = 0x%x, irq = %d\n", port, irq); + vxp->port = port; + + sprintf(card->shortname, "Digigram %s", card->driver); + sprintf(card->longname, "%s at 0x%x, irq %i", + card->shortname, port, irq); + + chip->irq = irq; + + if ((err = snd_vx_setup_firmware(chip)) < 0) + return err; + + return 0; +} + + +/* + * snd_vxpocket_detach - detach callback for cs + * @hw: the hardware information + */ +void snd_vxpocket_detach(struct snd_vxp_entry *hw, dev_link_t *link) +{ + vx_core_t *chip; + + if (! link) + return; + + chip = link->priv; + + snd_printdd(KERN_DEBUG "vxpocket_detach called\n"); + /* Remove the interface data from the linked list */ + if (hw) { + dev_link_t **linkp; + /* Locate device structure */ + for (linkp = &hw->dev_list; *linkp; linkp = &(*linkp)->next) + if (*linkp == link) { + *linkp = link->next; + break; + } + } + chip->chip_status |= VX_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 vxpocket_config(dev_link_t *link) +{ + client_handle_t handle = link->handle; + vx_core_t *chip = link->priv; + struct snd_vxpocket *vxp = (struct snd_vxpocket *)chip; + tuple_t tuple; + cisparse_t *parse = NULL; + u_short buf[32]; + int last_fn, last_ret; + + snd_printdd(KERN_DEBUG "vxpocket_config called\n"); + parse = kmalloc(sizeof(*parse), GFP_KERNEL); + if (! parse) { + snd_printk(KERN_ERR "vx: cannot allocate\n"); + return; + } + 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.Present = parse->config.rmask[0]; + + /* 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_vxpocket_assign_resources(chip, link->io.BasePort1, link->irq.AssignedIRQ) < 0) + goto failed; + + link->dev = &vxp->node; + link->state &= ~DEV_CONFIG_PENDING; + kfree(parse); + 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); + link->state &= ~DEV_CONFIG; + kfree(parse); +} + + +/* + * event callback + */ +static int vxpocket_event(event_t event, int priority, event_callback_args_t *args) +{ + dev_link_t *link = args->client_data; + vx_core_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 |= VX_STAT_IS_STALE; + } + break; + case CS_EVENT_CARD_INSERTION: + snd_printdd(KERN_DEBUG "CARD_INSERTION..\n"); + link->state |= DEV_PRESENT | DEV_CONFIG_PENDING; + vxpocket_config(link); + break; +#ifdef CONFIG_PM + case CS_EVENT_PM_SUSPEND: + snd_printdd(KERN_DEBUG "SUSPEND\n"); + link->state |= DEV_SUSPEND; + if (chip && chip->card->pm_suspend) { + snd_printdd(KERN_DEBUG "snd_vx_suspend calling\n"); + chip->card->pm_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)) { + //struct snd_vxpocket *vxp = (struct snd_vxpocket *)chip; + snd_printdd(KERN_DEBUG "requestconfig...\n"); + pcmcia_request_configuration(link->handle, &link->conf); + if (chip && chip->card->pm_resume) { + snd_printdd(KERN_DEBUG "calling snd_vx_resume\n"); + chip->card->pm_resume(chip->card); + } + } + snd_printdd(KERN_DEBUG "resume done!\n"); + break; +#endif + } + return 0; +} + +/* + * exported stuffs + */ +EXPORT_SYMBOL(snd_vxpocket_ops); +EXPORT_SYMBOL(snd_vxpocket_attach); +EXPORT_SYMBOL(snd_vxpocket_detach); |