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c6d43ba8 TS |
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 | |
c6d43ba8 TS |
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>"); | |
c596758f | 31 | MODULE_DESCRIPTION("TerraTec DMX 6Fire USB audio driver"); |
c6d43ba8 | 32 | MODULE_LICENSE("GPL v2"); |
0af49ffe | 33 | MODULE_SUPPORTED_DEVICE("{{TerraTec,DMX 6Fire USB}}"); |
c6d43ba8 TS |
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 */ | |
a67ff6a5 | 37 | static bool enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_PNP; /* Enable card */ |
c6d43ba8 TS |
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 | ||
87f9796a BP |
85 | static int usb6fire_chip_probe(struct usb_interface *intf, |
86 | const struct usb_device_id *usb_id) | |
c6d43ba8 TS |
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; | |
9b389a8a | 104 | } else if (!devices[i] && regidx < 0) |
c6d43ba8 TS |
105 | regidx = i; |
106 | } | |
107 | if (regidx < 0) { | |
108 | mutex_unlock(®ister_mutex); | |
e3b3757b | 109 | dev_err(&intf->dev, "too many cards registered.\n"); |
c6d43ba8 TS |
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) { | |
e3b3757b | 124 | dev_err(&intf->dev, "can't set first interface.\n"); |
c6d43ba8 TS |
125 | return -EIO; |
126 | } | |
874b8d42 TI |
127 | ret = snd_card_new(&intf->dev, index[regidx], id[regidx], |
128 | THIS_MODULE, sizeof(struct sfire_chip), &card); | |
c6d43ba8 | 129 | if (ret < 0) { |
e3b3757b | 130 | dev_err(&intf->dev, "cannot create alsa card.\n"); |
c6d43ba8 TS |
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); | |
c6d43ba8 TS |
137 | |
138 | chip = card->private_data; | |
139 | chips[regidx] = chip; | |
140 | chip->dev = device; | |
141 | chip->regidx = regidx; | |
142 | chip->intf_count = 1; | |
143 | chip->card = card; | |
144 | ||
145 | ret = usb6fire_comm_init(chip); | |
146 | if (ret < 0) { | |
147 | usb6fire_chip_destroy(chip); | |
148 | return ret; | |
149 | } | |
150 | ||
151 | ret = usb6fire_midi_init(chip); | |
152 | if (ret < 0) { | |
153 | usb6fire_chip_destroy(chip); | |
154 | return ret; | |
155 | } | |
156 | ||
157 | ret = usb6fire_pcm_init(chip); | |
158 | if (ret < 0) { | |
159 | usb6fire_chip_destroy(chip); | |
160 | return ret; | |
161 | } | |
162 | ||
163 | ret = usb6fire_control_init(chip); | |
164 | if (ret < 0) { | |
165 | usb6fire_chip_destroy(chip); | |
166 | return ret; | |
167 | } | |
168 | ||
169 | ret = snd_card_register(card); | |
170 | if (ret < 0) { | |
e3b3757b | 171 | dev_err(&intf->dev, "cannot register card."); |
c6d43ba8 TS |
172 | usb6fire_chip_destroy(chip); |
173 | return ret; | |
174 | } | |
175 | usb_set_intfdata(intf, chip); | |
176 | return 0; | |
177 | } | |
178 | ||
179 | static void usb6fire_chip_disconnect(struct usb_interface *intf) | |
180 | { | |
181 | struct sfire_chip *chip; | |
182 | struct snd_card *card; | |
183 | ||
184 | chip = usb_get_intfdata(intf); | |
185 | if (chip) { /* if !chip, fw upload has been performed */ | |
186 | card = chip->card; | |
187 | chip->intf_count--; | |
188 | if (!chip->intf_count) { | |
189 | mutex_lock(®ister_mutex); | |
190 | devices[chip->regidx] = NULL; | |
191 | chips[chip->regidx] = NULL; | |
192 | mutex_unlock(®ister_mutex); | |
193 | ||
194 | chip->shutdown = true; | |
195 | usb6fire_chip_abort(chip); | |
196 | usb6fire_chip_destroy(chip); | |
197 | } | |
198 | } | |
199 | } | |
200 | ||
201 | static struct usb_device_id device_table[] = { | |
202 | { | |
203 | .match_flags = USB_DEVICE_ID_MATCH_DEVICE, | |
204 | .idVendor = 0x0ccd, | |
205 | .idProduct = 0x0080 | |
206 | }, | |
207 | {} | |
208 | }; | |
209 | ||
210 | MODULE_DEVICE_TABLE(usb, device_table); | |
211 | ||
424f0750 | 212 | static struct usb_driver usb_driver = { |
c6d43ba8 TS |
213 | .name = "snd-usb-6fire", |
214 | .probe = usb6fire_chip_probe, | |
215 | .disconnect = usb6fire_chip_disconnect, | |
216 | .id_table = device_table, | |
217 | }; | |
218 | ||
424f0750 | 219 | module_usb_driver(usb_driver); |