385 lines
10 KiB
C
385 lines
10 KiB
C
/*
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* Driver for Digigram VXpocket soundcards
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*
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* PCMCIA entry part
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*
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* Copyright (c) 2002 by Takashi Iwai <tiwai@suse.de>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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#include <sound/driver.h>
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#include <sound/core.h>
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#include "vxpocket.h"
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#include <pcmcia/ciscode.h>
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#include <pcmcia/cisreg.h>
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MODULE_AUTHOR("Takashi Iwai <tiwai@suse.de>");
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MODULE_DESCRIPTION("Common routines for Digigram PCMCIA VX drivers");
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MODULE_LICENSE("GPL");
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/*
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* prototypes
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*/
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static void vxpocket_config(dev_link_t *link);
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static int vxpocket_event(event_t event, int priority, event_callback_args_t *args);
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static void vxpocket_release(dev_link_t *link)
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{
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if (link->state & DEV_CONFIG) {
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/* release cs resources */
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pcmcia_release_configuration(link->handle);
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pcmcia_release_io(link->handle, &link->io);
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pcmcia_release_irq(link->handle, &link->irq);
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link->state &= ~DEV_CONFIG;
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}
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}
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/*
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* destructor
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*/
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static int snd_vxpocket_free(vx_core_t *chip)
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{
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struct snd_vxpocket *vxp = (struct snd_vxpocket *)chip;
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struct snd_vxp_entry *hw;
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dev_link_t *link = &vxp->link;
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vxpocket_release(link);
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/* Break the link with Card Services */
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if (link->handle)
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pcmcia_deregister_client(link->handle);
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hw = vxp->hw_entry;
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if (hw)
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hw->card_list[vxp->index] = NULL;
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chip->card = NULL;
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if (chip->dev)
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kfree(chip->dev);
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snd_vx_free_firmware(chip);
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kfree(chip);
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return 0;
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}
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static int snd_vxpocket_dev_free(snd_device_t *device)
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{
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vx_core_t *chip = device->device_data;
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return snd_vxpocket_free(chip);
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}
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/*
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* snd_vxpocket_attach - attach callback for cs
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* @hw: the hardware information
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*/
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dev_link_t *snd_vxpocket_attach(struct snd_vxp_entry *hw)
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{
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client_reg_t client_reg; /* Register with cardmgr */
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dev_link_t *link; /* Info for cardmgr */
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int i, ret;
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vx_core_t *chip;
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struct snd_vxpocket *vxp;
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snd_card_t *card;
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static snd_device_ops_t ops = {
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.dev_free = snd_vxpocket_dev_free,
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};
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snd_printdd(KERN_DEBUG "vxpocket_attach called\n");
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/* find an empty slot from the card list */
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for (i = 0; i < SNDRV_CARDS; i++) {
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if (! hw->card_list[i])
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break;
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}
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if (i >= SNDRV_CARDS) {
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snd_printk(KERN_ERR "vxpocket: too many cards found\n");
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return NULL;
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}
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if (! hw->enable_table[i])
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return NULL; /* disabled explicitly */
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/* ok, create a card instance */
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card = snd_card_new(hw->index_table[i], hw->id_table[i], THIS_MODULE, 0);
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if (card == NULL) {
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snd_printk(KERN_ERR "vxpocket: cannot create a card instance\n");
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return NULL;
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}
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chip = snd_vx_create(card, hw->hardware, hw->ops,
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sizeof(struct snd_vxpocket) - sizeof(vx_core_t));
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if (! chip)
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return NULL;
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#ifdef SND_VX_FW_LOADER
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/* fake a device here since pcmcia doesn't give a valid device... */
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chip->dev = kcalloc(1, sizeof(*chip->dev), GFP_KERNEL);
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if (! chip->dev) {
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snd_printk(KERN_ERR "vxp: can't malloc chip->dev\n");
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kfree(chip);
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snd_card_free(card);
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return NULL;
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}
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device_initialize(chip->dev);
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sprintf(chip->dev->bus_id, "vxpocket%d", i);
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#endif
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if (snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops) < 0) {
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kfree(chip);
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snd_card_free(card);
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return NULL;
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}
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vxp = (struct snd_vxpocket *)chip;
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vxp->index = i;
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vxp->hw_entry = hw;
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chip->ibl.size = hw->ibl[i];
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hw->card_list[i] = chip;
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link = &vxp->link;
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link->priv = chip;
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link->io.Attributes1 = IO_DATA_PATH_WIDTH_AUTO;
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link->io.NumPorts1 = 16;
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link->irq.Attributes = IRQ_TYPE_EXCLUSIVE | IRQ_HANDLE_PRESENT;
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// link->irq.Attributes = IRQ_TYPE_DYNAMIC_SHARING|IRQ_FIRST_SHARED;
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link->irq.IRQInfo1 = IRQ_LEVEL_ID;
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link->irq.Handler = &snd_vx_irq_handler;
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link->irq.Instance = chip;
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link->conf.Attributes = CONF_ENABLE_IRQ;
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link->conf.Vcc = 50;
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link->conf.IntType = INT_MEMORY_AND_IO;
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link->conf.ConfigIndex = 1;
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link->conf.Present = PRESENT_OPTION;
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/* Register with Card Services */
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memset(&client_reg, 0, sizeof(client_reg));
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client_reg.dev_info = hw->dev_info;
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client_reg.EventMask =
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CS_EVENT_CARD_INSERTION | CS_EVENT_CARD_REMOVAL
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#ifdef CONFIG_PM
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| CS_EVENT_RESET_PHYSICAL | CS_EVENT_CARD_RESET
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| CS_EVENT_PM_SUSPEND | CS_EVENT_PM_RESUME
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#endif
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;
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client_reg.event_handler = &vxpocket_event;
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client_reg.Version = 0x0210;
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client_reg.event_callback_args.client_data = link;
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ret = pcmcia_register_client(&link->handle, &client_reg);
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if (ret != CS_SUCCESS) {
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cs_error(link->handle, RegisterClient, ret);
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snd_card_free(card);
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return NULL;
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}
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/* Chain drivers */
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link->next = hw->dev_list;
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hw->dev_list = link;
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/* snd_card_set_pm_callback(card, snd_vxpocket_suspend, snd_vxpocket_resume, chip); */
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return link;
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}
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/**
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* snd_vxpocket_assign_resources - initialize the hardware and card instance.
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* @port: i/o port for the card
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* @irq: irq number for the card
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*
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* this function assigns the specified port and irq, boot the card,
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* create pcm and control instances, and initialize the rest hardware.
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*
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* returns 0 if successful, or a negative error code.
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*/
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static int snd_vxpocket_assign_resources(vx_core_t *chip, int port, int irq)
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{
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int err;
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snd_card_t *card = chip->card;
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struct snd_vxpocket *vxp = (struct snd_vxpocket *)chip;
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snd_printdd(KERN_DEBUG "vxpocket assign resources: port = 0x%x, irq = %d\n", port, irq);
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vxp->port = port;
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sprintf(card->shortname, "Digigram %s", card->driver);
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sprintf(card->longname, "%s at 0x%x, irq %i",
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card->shortname, port, irq);
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chip->irq = irq;
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if ((err = snd_vx_setup_firmware(chip)) < 0)
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return err;
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return 0;
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}
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/*
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* snd_vxpocket_detach - detach callback for cs
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* @hw: the hardware information
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*/
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void snd_vxpocket_detach(struct snd_vxp_entry *hw, dev_link_t *link)
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{
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vx_core_t *chip;
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if (! link)
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return;
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chip = link->priv;
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snd_printdd(KERN_DEBUG "vxpocket_detach called\n");
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/* Remove the interface data from the linked list */
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if (hw) {
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dev_link_t **linkp;
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/* Locate device structure */
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for (linkp = &hw->dev_list; *linkp; linkp = &(*linkp)->next)
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if (*linkp == link) {
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*linkp = link->next;
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break;
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}
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}
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chip->chip_status |= VX_STAT_IS_STALE; /* to be sure */
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snd_card_disconnect(chip->card);
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snd_card_free_in_thread(chip->card);
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}
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/*
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* configuration callback
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*/
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#define CS_CHECK(fn, ret) \
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do { last_fn = (fn); if ((last_ret = (ret)) != 0) goto cs_failed; } while (0)
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static void vxpocket_config(dev_link_t *link)
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{
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client_handle_t handle = link->handle;
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vx_core_t *chip = link->priv;
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struct snd_vxpocket *vxp = (struct snd_vxpocket *)chip;
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tuple_t tuple;
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cisparse_t *parse = NULL;
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u_short buf[32];
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int last_fn, last_ret;
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snd_printdd(KERN_DEBUG "vxpocket_config called\n");
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parse = kmalloc(sizeof(*parse), GFP_KERNEL);
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if (! parse) {
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snd_printk(KERN_ERR "vx: cannot allocate\n");
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return;
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}
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tuple.Attributes = 0;
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tuple.TupleData = (cisdata_t *)buf;
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tuple.TupleDataMax = sizeof(buf);
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tuple.TupleOffset = 0;
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tuple.DesiredTuple = CISTPL_CONFIG;
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CS_CHECK(GetFirstTuple, pcmcia_get_first_tuple(handle, &tuple));
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CS_CHECK(GetTupleData, pcmcia_get_tuple_data(handle, &tuple));
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CS_CHECK(ParseTuple, pcmcia_parse_tuple(handle, &tuple, parse));
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link->conf.ConfigBase = parse->config.base;
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link->conf.Present = parse->config.rmask[0];
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/* Configure card */
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link->state |= DEV_CONFIG;
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CS_CHECK(RequestIO, pcmcia_request_io(handle, &link->io));
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CS_CHECK(RequestIRQ, pcmcia_request_irq(link->handle, &link->irq));
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CS_CHECK(RequestConfiguration, pcmcia_request_configuration(link->handle, &link->conf));
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if (snd_vxpocket_assign_resources(chip, link->io.BasePort1, link->irq.AssignedIRQ) < 0)
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goto failed;
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link->dev = &vxp->node;
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link->state &= ~DEV_CONFIG_PENDING;
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kfree(parse);
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return;
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cs_failed:
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cs_error(link->handle, last_fn, last_ret);
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failed:
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pcmcia_release_configuration(link->handle);
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pcmcia_release_io(link->handle, &link->io);
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pcmcia_release_irq(link->handle, &link->irq);
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link->state &= ~DEV_CONFIG;
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kfree(parse);
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}
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/*
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* event callback
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*/
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static int vxpocket_event(event_t event, int priority, event_callback_args_t *args)
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{
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dev_link_t *link = args->client_data;
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vx_core_t *chip = link->priv;
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switch (event) {
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case CS_EVENT_CARD_REMOVAL:
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snd_printdd(KERN_DEBUG "CARD_REMOVAL..\n");
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link->state &= ~DEV_PRESENT;
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if (link->state & DEV_CONFIG) {
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chip->chip_status |= VX_STAT_IS_STALE;
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}
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break;
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case CS_EVENT_CARD_INSERTION:
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snd_printdd(KERN_DEBUG "CARD_INSERTION..\n");
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link->state |= DEV_PRESENT | DEV_CONFIG_PENDING;
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vxpocket_config(link);
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break;
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#ifdef CONFIG_PM
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case CS_EVENT_PM_SUSPEND:
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snd_printdd(KERN_DEBUG "SUSPEND\n");
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link->state |= DEV_SUSPEND;
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if (chip && chip->card->pm_suspend) {
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snd_printdd(KERN_DEBUG "snd_vx_suspend calling\n");
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chip->card->pm_suspend(chip->card, PMSG_SUSPEND);
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}
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/* Fall through... */
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case CS_EVENT_RESET_PHYSICAL:
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snd_printdd(KERN_DEBUG "RESET_PHYSICAL\n");
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if (link->state & DEV_CONFIG)
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pcmcia_release_configuration(link->handle);
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break;
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case CS_EVENT_PM_RESUME:
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snd_printdd(KERN_DEBUG "RESUME\n");
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link->state &= ~DEV_SUSPEND;
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/* Fall through... */
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case CS_EVENT_CARD_RESET:
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snd_printdd(KERN_DEBUG "CARD_RESET\n");
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if (DEV_OK(link)) {
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//struct snd_vxpocket *vxp = (struct snd_vxpocket *)chip;
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snd_printdd(KERN_DEBUG "requestconfig...\n");
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pcmcia_request_configuration(link->handle, &link->conf);
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if (chip && chip->card->pm_resume) {
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snd_printdd(KERN_DEBUG "calling snd_vx_resume\n");
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chip->card->pm_resume(chip->card);
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}
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}
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snd_printdd(KERN_DEBUG "resume done!\n");
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break;
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#endif
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}
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return 0;
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}
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/*
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* exported stuffs
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*/
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EXPORT_SYMBOL(snd_vxpocket_ops);
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EXPORT_SYMBOL(snd_vxpocket_attach);
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EXPORT_SYMBOL(snd_vxpocket_detach);
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