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