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207 lines
5.1 KiB
207 lines
5.1 KiB
// SPDX-License-Identifier: GPL-2.0-or-later |
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/* |
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* Linux driver for TerraTec DMX 6Fire USB |
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* |
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* Main routines and module definitions. |
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* |
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* Author: Torsten Schenk <[email protected]> |
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* Created: Jan 01, 2011 |
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* Copyright: (C) Torsten Schenk |
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*/ |
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#include "chip.h" |
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#include "firmware.h" |
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#include "pcm.h" |
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#include "control.h" |
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#include "comm.h" |
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#include "midi.h" |
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#include <linux/moduleparam.h> |
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#include <linux/interrupt.h> |
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#include <linux/module.h> |
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#include <linux/init.h> |
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#include <linux/gfp.h> |
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#include <sound/initval.h> |
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MODULE_AUTHOR("Torsten Schenk <[email protected]>"); |
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MODULE_DESCRIPTION("TerraTec DMX 6Fire USB audio driver"); |
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MODULE_LICENSE("GPL v2"); |
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static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX; /* Index 0-max */ |
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static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR; /* Id for card */ |
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static bool enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_PNP; /* Enable card */ |
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static struct sfire_chip *chips[SNDRV_CARDS] = SNDRV_DEFAULT_PTR; |
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static struct usb_device *devices[SNDRV_CARDS] = SNDRV_DEFAULT_PTR; |
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module_param_array(index, int, NULL, 0444); |
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MODULE_PARM_DESC(index, "Index value for the 6fire sound device"); |
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module_param_array(id, charp, NULL, 0444); |
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MODULE_PARM_DESC(id, "ID string for the 6fire sound device."); |
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module_param_array(enable, bool, NULL, 0444); |
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MODULE_PARM_DESC(enable, "Enable the 6fire sound device."); |
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static DEFINE_MUTEX(register_mutex); |
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static void usb6fire_chip_abort(struct sfire_chip *chip) |
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{ |
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if (chip) { |
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if (chip->pcm) |
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usb6fire_pcm_abort(chip); |
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if (chip->midi) |
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usb6fire_midi_abort(chip); |
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if (chip->comm) |
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usb6fire_comm_abort(chip); |
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if (chip->control) |
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usb6fire_control_abort(chip); |
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if (chip->card) { |
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snd_card_disconnect(chip->card); |
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snd_card_free_when_closed(chip->card); |
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chip->card = NULL; |
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} |
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} |
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} |
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static void usb6fire_chip_destroy(struct sfire_chip *chip) |
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{ |
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if (chip) { |
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if (chip->pcm) |
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usb6fire_pcm_destroy(chip); |
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if (chip->midi) |
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usb6fire_midi_destroy(chip); |
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if (chip->comm) |
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usb6fire_comm_destroy(chip); |
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if (chip->control) |
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usb6fire_control_destroy(chip); |
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if (chip->card) |
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snd_card_free(chip->card); |
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} |
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} |
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static int usb6fire_chip_probe(struct usb_interface *intf, |
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const struct usb_device_id *usb_id) |
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{ |
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int ret; |
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int i; |
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struct sfire_chip *chip = NULL; |
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struct usb_device *device = interface_to_usbdev(intf); |
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int regidx = -1; /* index in module parameter array */ |
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struct snd_card *card = NULL; |
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/* look if we already serve this card and return if so */ |
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mutex_lock(®ister_mutex); |
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for (i = 0; i < SNDRV_CARDS; i++) { |
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if (devices[i] == device) { |
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if (chips[i]) |
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chips[i]->intf_count++; |
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usb_set_intfdata(intf, chips[i]); |
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mutex_unlock(®ister_mutex); |
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return 0; |
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} else if (!devices[i] && regidx < 0) |
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regidx = i; |
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} |
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if (regidx < 0) { |
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mutex_unlock(®ister_mutex); |
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dev_err(&intf->dev, "too many cards registered.\n"); |
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return -ENODEV; |
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} |
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devices[regidx] = device; |
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mutex_unlock(®ister_mutex); |
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/* check, if firmware is present on device, upload it if not */ |
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ret = usb6fire_fw_init(intf); |
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if (ret < 0) |
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return ret; |
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else if (ret == FW_NOT_READY) /* firmware update performed */ |
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return 0; |
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/* if we are here, card can be registered in alsa. */ |
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if (usb_set_interface(device, 0, 0) != 0) { |
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dev_err(&intf->dev, "can't set first interface.\n"); |
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return -EIO; |
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} |
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ret = snd_card_new(&intf->dev, index[regidx], id[regidx], |
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THIS_MODULE, sizeof(struct sfire_chip), &card); |
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if (ret < 0) { |
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dev_err(&intf->dev, "cannot create alsa card.\n"); |
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return ret; |
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} |
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strcpy(card->driver, "6FireUSB"); |
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strcpy(card->shortname, "TerraTec DMX6FireUSB"); |
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sprintf(card->longname, "%s at %d:%d", card->shortname, |
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device->bus->busnum, device->devnum); |
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chip = card->private_data; |
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chips[regidx] = chip; |
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chip->dev = device; |
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chip->regidx = regidx; |
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chip->intf_count = 1; |
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chip->card = card; |
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ret = usb6fire_comm_init(chip); |
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if (ret < 0) |
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goto destroy_chip; |
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ret = usb6fire_midi_init(chip); |
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if (ret < 0) |
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goto destroy_chip; |
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ret = usb6fire_pcm_init(chip); |
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if (ret < 0) |
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goto destroy_chip; |
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ret = usb6fire_control_init(chip); |
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if (ret < 0) |
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goto destroy_chip; |
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ret = snd_card_register(card); |
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if (ret < 0) { |
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dev_err(&intf->dev, "cannot register card."); |
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goto destroy_chip; |
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} |
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usb_set_intfdata(intf, chip); |
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return 0; |
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destroy_chip: |
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usb6fire_chip_destroy(chip); |
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return ret; |
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} |
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static void usb6fire_chip_disconnect(struct usb_interface *intf) |
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{ |
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struct sfire_chip *chip; |
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chip = usb_get_intfdata(intf); |
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if (chip) { /* if !chip, fw upload has been performed */ |
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chip->intf_count--; |
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if (!chip->intf_count) { |
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mutex_lock(®ister_mutex); |
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devices[chip->regidx] = NULL; |
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chips[chip->regidx] = NULL; |
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mutex_unlock(®ister_mutex); |
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chip->shutdown = true; |
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usb6fire_chip_abort(chip); |
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usb6fire_chip_destroy(chip); |
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} |
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} |
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} |
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static const struct usb_device_id device_table[] = { |
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{ |
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.match_flags = USB_DEVICE_ID_MATCH_DEVICE, |
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.idVendor = 0x0ccd, |
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.idProduct = 0x0080 |
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}, |
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{} |
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}; |
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MODULE_DEVICE_TABLE(usb, device_table); |
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static struct usb_driver usb_driver = { |
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.name = "snd-usb-6fire", |
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.probe = usb6fire_chip_probe, |
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.disconnect = usb6fire_chip_disconnect, |
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.id_table = device_table, |
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}; |
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module_usb_driver(usb_driver);
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