Torsten Schenk | c6d43ba | 2011-01-24 18:45:30 +0100 | [diff] [blame] | 1 | /* |
| 2 | * Linux driver for TerraTec DMX 6Fire USB |
| 3 | * |
| 4 | * Main routines and module definitions. |
| 5 | * |
| 6 | * Author: Torsten Schenk <torsten.schenk@zoho.com> |
| 7 | * Created: Jan 01, 2011 |
Torsten Schenk | c6d43ba | 2011-01-24 18:45:30 +0100 | [diff] [blame] | 8 | * Copyright: (C) Torsten Schenk |
| 9 | * |
| 10 | * This program is free software; you can redistribute it and/or modify |
| 11 | * it under the terms of the GNU General Public License as published by |
| 12 | * the Free Software Foundation; either version 2 of the License, or |
| 13 | * (at your option) any later version. |
| 14 | */ |
| 15 | |
| 16 | #include "chip.h" |
| 17 | #include "firmware.h" |
| 18 | #include "pcm.h" |
| 19 | #include "control.h" |
| 20 | #include "comm.h" |
| 21 | #include "midi.h" |
| 22 | |
| 23 | #include <linux/moduleparam.h> |
| 24 | #include <linux/interrupt.h> |
| 25 | #include <linux/module.h> |
| 26 | #include <linux/init.h> |
| 27 | #include <linux/gfp.h> |
| 28 | #include <sound/initval.h> |
| 29 | |
| 30 | MODULE_AUTHOR("Torsten Schenk <torsten.schenk@zoho.com>"); |
Torsten Schenk | c596758 | 2012-02-22 15:20:45 +0100 | [diff] [blame] | 31 | MODULE_DESCRIPTION("TerraTec DMX 6Fire USB audio driver"); |
Torsten Schenk | c6d43ba | 2011-01-24 18:45:30 +0100 | [diff] [blame] | 32 | MODULE_LICENSE("GPL v2"); |
| 33 | MODULE_SUPPORTED_DEVICE("{{TerraTec, DMX 6Fire USB}}"); |
| 34 | |
| 35 | static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX; /* Index 0-max */ |
| 36 | static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR; /* Id for card */ |
Rusty Russell | a67ff6a | 2011-12-15 13:49:36 +1030 | [diff] [blame] | 37 | static bool enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_PNP; /* Enable card */ |
Torsten Schenk | c6d43ba | 2011-01-24 18:45:30 +0100 | [diff] [blame] | 38 | static struct sfire_chip *chips[SNDRV_CARDS] = SNDRV_DEFAULT_PTR; |
| 39 | static struct usb_device *devices[SNDRV_CARDS] = SNDRV_DEFAULT_PTR; |
| 40 | |
| 41 | module_param_array(index, int, NULL, 0444); |
| 42 | MODULE_PARM_DESC(index, "Index value for the 6fire sound device"); |
| 43 | module_param_array(id, charp, NULL, 0444); |
| 44 | MODULE_PARM_DESC(id, "ID string for the 6fire sound device."); |
| 45 | module_param_array(enable, bool, NULL, 0444); |
| 46 | MODULE_PARM_DESC(enable, "Enable the 6fire sound device."); |
| 47 | |
| 48 | static DEFINE_MUTEX(register_mutex); |
| 49 | |
| 50 | static void usb6fire_chip_abort(struct sfire_chip *chip) |
| 51 | { |
| 52 | if (chip) { |
| 53 | if (chip->pcm) |
| 54 | usb6fire_pcm_abort(chip); |
| 55 | if (chip->midi) |
| 56 | usb6fire_midi_abort(chip); |
| 57 | if (chip->comm) |
| 58 | usb6fire_comm_abort(chip); |
| 59 | if (chip->control) |
| 60 | usb6fire_control_abort(chip); |
| 61 | if (chip->card) { |
| 62 | snd_card_disconnect(chip->card); |
| 63 | snd_card_free_when_closed(chip->card); |
| 64 | chip->card = NULL; |
| 65 | } |
| 66 | } |
| 67 | } |
| 68 | |
| 69 | static void usb6fire_chip_destroy(struct sfire_chip *chip) |
| 70 | { |
| 71 | if (chip) { |
| 72 | if (chip->pcm) |
| 73 | usb6fire_pcm_destroy(chip); |
| 74 | if (chip->midi) |
| 75 | usb6fire_midi_destroy(chip); |
| 76 | if (chip->comm) |
| 77 | usb6fire_comm_destroy(chip); |
| 78 | if (chip->control) |
| 79 | usb6fire_control_destroy(chip); |
| 80 | if (chip->card) |
| 81 | snd_card_free(chip->card); |
| 82 | } |
| 83 | } |
| 84 | |
| 85 | static int __devinit usb6fire_chip_probe(struct usb_interface *intf, |
| 86 | const struct usb_device_id *usb_id) |
| 87 | { |
| 88 | int ret; |
| 89 | int i; |
| 90 | struct sfire_chip *chip = NULL; |
| 91 | struct usb_device *device = interface_to_usbdev(intf); |
| 92 | int regidx = -1; /* index in module parameter array */ |
| 93 | struct snd_card *card = NULL; |
| 94 | |
| 95 | /* look if we already serve this card and return if so */ |
| 96 | mutex_lock(®ister_mutex); |
| 97 | for (i = 0; i < SNDRV_CARDS; i++) { |
| 98 | if (devices[i] == device) { |
| 99 | if (chips[i]) |
| 100 | chips[i]->intf_count++; |
| 101 | usb_set_intfdata(intf, chips[i]); |
| 102 | mutex_unlock(®ister_mutex); |
| 103 | return 0; |
| 104 | } else if (regidx < 0) |
| 105 | regidx = i; |
| 106 | } |
| 107 | if (regidx < 0) { |
| 108 | mutex_unlock(®ister_mutex); |
| 109 | snd_printk(KERN_ERR PREFIX "too many cards registered.\n"); |
| 110 | return -ENODEV; |
| 111 | } |
| 112 | devices[regidx] = device; |
| 113 | mutex_unlock(®ister_mutex); |
| 114 | |
| 115 | /* check, if firmware is present on device, upload it if not */ |
| 116 | ret = usb6fire_fw_init(intf); |
| 117 | if (ret < 0) |
| 118 | return ret; |
| 119 | else if (ret == FW_NOT_READY) /* firmware update performed */ |
| 120 | return 0; |
| 121 | |
| 122 | /* if we are here, card can be registered in alsa. */ |
| 123 | if (usb_set_interface(device, 0, 0) != 0) { |
| 124 | snd_printk(KERN_ERR PREFIX "can't set first interface.\n"); |
| 125 | return -EIO; |
| 126 | } |
| 127 | ret = snd_card_create(index[regidx], id[regidx], THIS_MODULE, |
| 128 | sizeof(struct sfire_chip), &card); |
| 129 | if (ret < 0) { |
| 130 | snd_printk(KERN_ERR PREFIX "cannot create alsa card.\n"); |
| 131 | return ret; |
| 132 | } |
| 133 | strcpy(card->driver, "6FireUSB"); |
| 134 | strcpy(card->shortname, "TerraTec DMX6FireUSB"); |
| 135 | sprintf(card->longname, "%s at %d:%d", card->shortname, |
| 136 | device->bus->busnum, device->devnum); |
| 137 | snd_card_set_dev(card, &intf->dev); |
| 138 | |
| 139 | chip = card->private_data; |
| 140 | chips[regidx] = chip; |
| 141 | chip->dev = device; |
| 142 | chip->regidx = regidx; |
| 143 | chip->intf_count = 1; |
| 144 | chip->card = card; |
| 145 | |
| 146 | ret = usb6fire_comm_init(chip); |
| 147 | if (ret < 0) { |
| 148 | usb6fire_chip_destroy(chip); |
| 149 | return ret; |
| 150 | } |
| 151 | |
| 152 | ret = usb6fire_midi_init(chip); |
| 153 | if (ret < 0) { |
| 154 | usb6fire_chip_destroy(chip); |
| 155 | return ret; |
| 156 | } |
| 157 | |
| 158 | ret = usb6fire_pcm_init(chip); |
| 159 | if (ret < 0) { |
| 160 | usb6fire_chip_destroy(chip); |
| 161 | return ret; |
| 162 | } |
| 163 | |
| 164 | ret = usb6fire_control_init(chip); |
| 165 | if (ret < 0) { |
| 166 | usb6fire_chip_destroy(chip); |
| 167 | return ret; |
| 168 | } |
| 169 | |
| 170 | ret = snd_card_register(card); |
| 171 | if (ret < 0) { |
| 172 | snd_printk(KERN_ERR PREFIX "cannot register card."); |
| 173 | usb6fire_chip_destroy(chip); |
| 174 | return ret; |
| 175 | } |
| 176 | usb_set_intfdata(intf, chip); |
| 177 | return 0; |
| 178 | } |
| 179 | |
| 180 | static void usb6fire_chip_disconnect(struct usb_interface *intf) |
| 181 | { |
| 182 | struct sfire_chip *chip; |
| 183 | struct snd_card *card; |
| 184 | |
| 185 | chip = usb_get_intfdata(intf); |
| 186 | if (chip) { /* if !chip, fw upload has been performed */ |
| 187 | card = chip->card; |
| 188 | chip->intf_count--; |
| 189 | if (!chip->intf_count) { |
| 190 | mutex_lock(®ister_mutex); |
| 191 | devices[chip->regidx] = NULL; |
| 192 | chips[chip->regidx] = NULL; |
| 193 | mutex_unlock(®ister_mutex); |
| 194 | |
| 195 | chip->shutdown = true; |
| 196 | usb6fire_chip_abort(chip); |
| 197 | usb6fire_chip_destroy(chip); |
| 198 | } |
| 199 | } |
| 200 | } |
| 201 | |
| 202 | static struct usb_device_id device_table[] = { |
| 203 | { |
| 204 | .match_flags = USB_DEVICE_ID_MATCH_DEVICE, |
| 205 | .idVendor = 0x0ccd, |
| 206 | .idProduct = 0x0080 |
| 207 | }, |
| 208 | {} |
| 209 | }; |
| 210 | |
| 211 | MODULE_DEVICE_TABLE(usb, device_table); |
| 212 | |
Greg Kroah-Hartman | 424f075 | 2011-11-18 09:50:44 -0800 | [diff] [blame] | 213 | static struct usb_driver usb_driver = { |
Torsten Schenk | c6d43ba | 2011-01-24 18:45:30 +0100 | [diff] [blame] | 214 | .name = "snd-usb-6fire", |
| 215 | .probe = usb6fire_chip_probe, |
| 216 | .disconnect = usb6fire_chip_disconnect, |
| 217 | .id_table = device_table, |
| 218 | }; |
| 219 | |
Greg Kroah-Hartman | 424f075 | 2011-11-18 09:50:44 -0800 | [diff] [blame] | 220 | module_usb_driver(usb_driver); |