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2874c5fd | 1 | // SPDX-License-Identifier: GPL-2.0-or-later |
c6d43ba8 TS |
2 | /* |
3 | * Linux driver for TerraTec DMX 6Fire USB | |
4 | * | |
5 | * Main routines and module definitions. | |
6 | * | |
7 | * Author: Torsten Schenk <torsten.schenk@zoho.com> | |
8 | * Created: Jan 01, 2011 | |
c6d43ba8 | 9 | * Copyright: (C) Torsten Schenk |
c6d43ba8 TS |
10 | */ |
11 | ||
12 | #include "chip.h" | |
13 | #include "firmware.h" | |
14 | #include "pcm.h" | |
15 | #include "control.h" | |
16 | #include "comm.h" | |
17 | #include "midi.h" | |
18 | ||
19 | #include <linux/moduleparam.h> | |
20 | #include <linux/interrupt.h> | |
21 | #include <linux/module.h> | |
22 | #include <linux/init.h> | |
23 | #include <linux/gfp.h> | |
24 | #include <sound/initval.h> | |
25 | ||
26 | MODULE_AUTHOR("Torsten Schenk <torsten.schenk@zoho.com>"); | |
c596758f | 27 | MODULE_DESCRIPTION("TerraTec DMX 6Fire USB audio driver"); |
c6d43ba8 | 28 | MODULE_LICENSE("GPL v2"); |
0af49ffe | 29 | MODULE_SUPPORTED_DEVICE("{{TerraTec,DMX 6Fire USB}}"); |
c6d43ba8 TS |
30 | |
31 | static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX; /* Index 0-max */ | |
32 | static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR; /* Id for card */ | |
a67ff6a5 | 33 | static bool enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_PNP; /* Enable card */ |
c6d43ba8 TS |
34 | static struct sfire_chip *chips[SNDRV_CARDS] = SNDRV_DEFAULT_PTR; |
35 | static struct usb_device *devices[SNDRV_CARDS] = SNDRV_DEFAULT_PTR; | |
36 | ||
37 | module_param_array(index, int, NULL, 0444); | |
38 | MODULE_PARM_DESC(index, "Index value for the 6fire sound device"); | |
39 | module_param_array(id, charp, NULL, 0444); | |
40 | MODULE_PARM_DESC(id, "ID string for the 6fire sound device."); | |
41 | module_param_array(enable, bool, NULL, 0444); | |
42 | MODULE_PARM_DESC(enable, "Enable the 6fire sound device."); | |
43 | ||
44 | static DEFINE_MUTEX(register_mutex); | |
45 | ||
46 | static void usb6fire_chip_abort(struct sfire_chip *chip) | |
47 | { | |
48 | if (chip) { | |
49 | if (chip->pcm) | |
50 | usb6fire_pcm_abort(chip); | |
51 | if (chip->midi) | |
52 | usb6fire_midi_abort(chip); | |
53 | if (chip->comm) | |
54 | usb6fire_comm_abort(chip); | |
55 | if (chip->control) | |
56 | usb6fire_control_abort(chip); | |
57 | if (chip->card) { | |
58 | snd_card_disconnect(chip->card); | |
59 | snd_card_free_when_closed(chip->card); | |
60 | chip->card = NULL; | |
61 | } | |
62 | } | |
63 | } | |
64 | ||
65 | static void usb6fire_chip_destroy(struct sfire_chip *chip) | |
66 | { | |
67 | if (chip) { | |
68 | if (chip->pcm) | |
69 | usb6fire_pcm_destroy(chip); | |
70 | if (chip->midi) | |
71 | usb6fire_midi_destroy(chip); | |
72 | if (chip->comm) | |
73 | usb6fire_comm_destroy(chip); | |
74 | if (chip->control) | |
75 | usb6fire_control_destroy(chip); | |
76 | if (chip->card) | |
77 | snd_card_free(chip->card); | |
78 | } | |
79 | } | |
80 | ||
87f9796a BP |
81 | static int usb6fire_chip_probe(struct usb_interface *intf, |
82 | const struct usb_device_id *usb_id) | |
c6d43ba8 TS |
83 | { |
84 | int ret; | |
85 | int i; | |
86 | struct sfire_chip *chip = NULL; | |
87 | struct usb_device *device = interface_to_usbdev(intf); | |
88 | int regidx = -1; /* index in module parameter array */ | |
89 | struct snd_card *card = NULL; | |
90 | ||
91 | /* look if we already serve this card and return if so */ | |
92 | mutex_lock(®ister_mutex); | |
93 | for (i = 0; i < SNDRV_CARDS; i++) { | |
94 | if (devices[i] == device) { | |
95 | if (chips[i]) | |
96 | chips[i]->intf_count++; | |
97 | usb_set_intfdata(intf, chips[i]); | |
98 | mutex_unlock(®ister_mutex); | |
99 | return 0; | |
9b389a8a | 100 | } else if (!devices[i] && regidx < 0) |
c6d43ba8 TS |
101 | regidx = i; |
102 | } | |
103 | if (regidx < 0) { | |
104 | mutex_unlock(®ister_mutex); | |
e3b3757b | 105 | dev_err(&intf->dev, "too many cards registered.\n"); |
c6d43ba8 TS |
106 | return -ENODEV; |
107 | } | |
108 | devices[regidx] = device; | |
109 | mutex_unlock(®ister_mutex); | |
110 | ||
111 | /* check, if firmware is present on device, upload it if not */ | |
112 | ret = usb6fire_fw_init(intf); | |
113 | if (ret < 0) | |
114 | return ret; | |
115 | else if (ret == FW_NOT_READY) /* firmware update performed */ | |
116 | return 0; | |
117 | ||
118 | /* if we are here, card can be registered in alsa. */ | |
119 | if (usb_set_interface(device, 0, 0) != 0) { | |
e3b3757b | 120 | dev_err(&intf->dev, "can't set first interface.\n"); |
c6d43ba8 TS |
121 | return -EIO; |
122 | } | |
874b8d42 TI |
123 | ret = snd_card_new(&intf->dev, index[regidx], id[regidx], |
124 | THIS_MODULE, sizeof(struct sfire_chip), &card); | |
c6d43ba8 | 125 | if (ret < 0) { |
e3b3757b | 126 | dev_err(&intf->dev, "cannot create alsa card.\n"); |
c6d43ba8 TS |
127 | return ret; |
128 | } | |
129 | strcpy(card->driver, "6FireUSB"); | |
130 | strcpy(card->shortname, "TerraTec DMX6FireUSB"); | |
131 | sprintf(card->longname, "%s at %d:%d", card->shortname, | |
132 | device->bus->busnum, device->devnum); | |
c6d43ba8 TS |
133 | |
134 | chip = card->private_data; | |
135 | chips[regidx] = chip; | |
136 | chip->dev = device; | |
137 | chip->regidx = regidx; | |
138 | chip->intf_count = 1; | |
139 | chip->card = card; | |
140 | ||
141 | ret = usb6fire_comm_init(chip); | |
f804fff1 ME |
142 | if (ret < 0) |
143 | goto destroy_chip; | |
c6d43ba8 TS |
144 | |
145 | ret = usb6fire_midi_init(chip); | |
f804fff1 ME |
146 | if (ret < 0) |
147 | goto destroy_chip; | |
c6d43ba8 TS |
148 | |
149 | ret = usb6fire_pcm_init(chip); | |
f804fff1 ME |
150 | if (ret < 0) |
151 | goto destroy_chip; | |
c6d43ba8 TS |
152 | |
153 | ret = usb6fire_control_init(chip); | |
f804fff1 ME |
154 | if (ret < 0) |
155 | goto destroy_chip; | |
c6d43ba8 TS |
156 | |
157 | ret = snd_card_register(card); | |
158 | if (ret < 0) { | |
e3b3757b | 159 | dev_err(&intf->dev, "cannot register card."); |
f804fff1 | 160 | goto destroy_chip; |
c6d43ba8 TS |
161 | } |
162 | usb_set_intfdata(intf, chip); | |
163 | return 0; | |
f804fff1 ME |
164 | |
165 | destroy_chip: | |
166 | usb6fire_chip_destroy(chip); | |
167 | return ret; | |
c6d43ba8 TS |
168 | } |
169 | ||
170 | static void usb6fire_chip_disconnect(struct usb_interface *intf) | |
171 | { | |
172 | struct sfire_chip *chip; | |
c6d43ba8 TS |
173 | |
174 | chip = usb_get_intfdata(intf); | |
175 | if (chip) { /* if !chip, fw upload has been performed */ | |
c6d43ba8 TS |
176 | chip->intf_count--; |
177 | if (!chip->intf_count) { | |
178 | mutex_lock(®ister_mutex); | |
179 | devices[chip->regidx] = NULL; | |
180 | chips[chip->regidx] = NULL; | |
181 | mutex_unlock(®ister_mutex); | |
182 | ||
183 | chip->shutdown = true; | |
184 | usb6fire_chip_abort(chip); | |
185 | usb6fire_chip_destroy(chip); | |
186 | } | |
187 | } | |
188 | } | |
189 | ||
05d72cd5 | 190 | static const struct usb_device_id device_table[] = { |
c6d43ba8 TS |
191 | { |
192 | .match_flags = USB_DEVICE_ID_MATCH_DEVICE, | |
193 | .idVendor = 0x0ccd, | |
194 | .idProduct = 0x0080 | |
195 | }, | |
196 | {} | |
197 | }; | |
198 | ||
199 | MODULE_DEVICE_TABLE(usb, device_table); | |
200 | ||
424f0750 | 201 | static struct usb_driver usb_driver = { |
c6d43ba8 TS |
202 | .name = "snd-usb-6fire", |
203 | .probe = usb6fire_chip_probe, | |
204 | .disconnect = usb6fire_chip_disconnect, | |
205 | .id_table = device_table, | |
206 | }; | |
207 | ||
424f0750 | 208 | module_usb_driver(usb_driver); |