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1// SPDX-License-Identifier: GPL-2.0-or-later
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
9 * Copyright: (C) Torsten Schenk
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
26MODULE_AUTHOR("Torsten Schenk <torsten.schenk@zoho.com>");
27MODULE_DESCRIPTION("TerraTec DMX 6Fire USB audio driver");
28MODULE_LICENSE("GPL v2");
29
30static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX; /* Index 0-max */
31static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR; /* Id for card */
32static bool enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_PNP; /* Enable card */
33static struct sfire_chip *chips[SNDRV_CARDS] = SNDRV_DEFAULT_PTR;
34static struct usb_device *devices[SNDRV_CARDS] = SNDRV_DEFAULT_PTR;
35
36module_param_array(index, int, NULL, 0444);
37MODULE_PARM_DESC(index, "Index value for the 6fire sound device");
38module_param_array(id, charp, NULL, 0444);
39MODULE_PARM_DESC(id, "ID string for the 6fire sound device.");
40module_param_array(enable, bool, NULL, 0444);
41MODULE_PARM_DESC(enable, "Enable the 6fire sound device.");
42
43static DEFINE_MUTEX(register_mutex);
44
45static 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
64static void usb6fire_card_free(struct snd_card *card)
65{
66 struct sfire_chip *chip = card->private_data;
67
68 if (chip) {
69 if (chip->pcm)
70 usb6fire_pcm_destroy(chip);
71 if (chip->midi)
72 usb6fire_midi_destroy(chip);
73 if (chip->comm)
74 usb6fire_comm_destroy(chip);
75 if (chip->control)
76 usb6fire_control_destroy(chip);
77 }
78}
79
80static int usb6fire_chip_probe(struct usb_interface *intf,
81 const struct usb_device_id *usb_id)
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;
99 } else if (!devices[i] && regidx < 0)
100 regidx = i;
101 }
102 if (regidx < 0) {
103 mutex_unlock(®ister_mutex);
104 dev_err(&intf->dev, "too many cards registered.\n");
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) {
119 dev_err(&intf->dev, "can't set first interface.\n");
120 return -EIO;
121 }
122 ret = snd_card_new(&intf->dev, index[regidx], id[regidx],
123 THIS_MODULE, sizeof(struct sfire_chip), &card);
124 if (ret < 0) {
125 dev_err(&intf->dev, "cannot create alsa card.\n");
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);
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 card->private_free = usb6fire_card_free;
140
141 ret = usb6fire_comm_init(chip);
142 if (ret < 0)
143 goto destroy_chip;
144
145 ret = usb6fire_midi_init(chip);
146 if (ret < 0)
147 goto destroy_chip;
148
149 ret = usb6fire_pcm_init(chip);
150 if (ret < 0)
151 goto destroy_chip;
152
153 ret = usb6fire_control_init(chip);
154 if (ret < 0)
155 goto destroy_chip;
156
157 ret = snd_card_register(card);
158 if (ret < 0) {
159 dev_err(&intf->dev, "cannot register card.");
160 goto destroy_chip;
161 }
162 usb_set_intfdata(intf, chip);
163 return 0;
164
165destroy_chip:
166 snd_card_free(card);
167 return ret;
168}
169
170static void usb6fire_chip_disconnect(struct usb_interface *intf)
171{
172 struct sfire_chip *chip;
173
174 chip = usb_get_intfdata(intf);
175 if (chip) { /* if !chip, fw upload has been performed */
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 }
186 }
187}
188
189static const struct usb_device_id device_table[] = {
190 {
191 .match_flags = USB_DEVICE_ID_MATCH_DEVICE,
192 .idVendor = 0x0ccd,
193 .idProduct = 0x0080
194 },
195 {}
196};
197
198MODULE_DEVICE_TABLE(usb, device_table);
199
200static struct usb_driver usb_driver = {
201 .name = "snd-usb-6fire",
202 .probe = usb6fire_chip_probe,
203 .disconnect = usb6fire_chip_disconnect,
204 .id_table = device_table,
205};
206
207module_usb_driver(usb_driver);
1// SPDX-License-Identifier: GPL-2.0-or-later
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
9 * Copyright: (C) Torsten Schenk
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
26MODULE_AUTHOR("Torsten Schenk <torsten.schenk@zoho.com>");
27MODULE_DESCRIPTION("TerraTec DMX 6Fire USB audio driver");
28MODULE_LICENSE("GPL v2");
29
30static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX; /* Index 0-max */
31static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR; /* Id for card */
32static bool enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_PNP; /* Enable card */
33static struct sfire_chip *chips[SNDRV_CARDS] = SNDRV_DEFAULT_PTR;
34static struct usb_device *devices[SNDRV_CARDS] = SNDRV_DEFAULT_PTR;
35
36module_param_array(index, int, NULL, 0444);
37MODULE_PARM_DESC(index, "Index value for the 6fire sound device");
38module_param_array(id, charp, NULL, 0444);
39MODULE_PARM_DESC(id, "ID string for the 6fire sound device.");
40module_param_array(enable, bool, NULL, 0444);
41MODULE_PARM_DESC(enable, "Enable the 6fire sound device.");
42
43static DEFINE_MUTEX(register_mutex);
44
45static 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
64static 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
80static int usb6fire_chip_probe(struct usb_interface *intf,
81 const struct usb_device_id *usb_id)
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;
99 } else if (!devices[i] && regidx < 0)
100 regidx = i;
101 }
102 if (regidx < 0) {
103 mutex_unlock(®ister_mutex);
104 dev_err(&intf->dev, "too many cards registered.\n");
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) {
119 dev_err(&intf->dev, "can't set first interface.\n");
120 return -EIO;
121 }
122 ret = snd_card_new(&intf->dev, index[regidx], id[regidx],
123 THIS_MODULE, sizeof(struct sfire_chip), &card);
124 if (ret < 0) {
125 dev_err(&intf->dev, "cannot create alsa card.\n");
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);
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);
141 if (ret < 0)
142 goto destroy_chip;
143
144 ret = usb6fire_midi_init(chip);
145 if (ret < 0)
146 goto destroy_chip;
147
148 ret = usb6fire_pcm_init(chip);
149 if (ret < 0)
150 goto destroy_chip;
151
152 ret = usb6fire_control_init(chip);
153 if (ret < 0)
154 goto destroy_chip;
155
156 ret = snd_card_register(card);
157 if (ret < 0) {
158 dev_err(&intf->dev, "cannot register card.");
159 goto destroy_chip;
160 }
161 usb_set_intfdata(intf, chip);
162 return 0;
163
164destroy_chip:
165 usb6fire_chip_destroy(chip);
166 return ret;
167}
168
169static void usb6fire_chip_disconnect(struct usb_interface *intf)
170{
171 struct sfire_chip *chip;
172
173 chip = usb_get_intfdata(intf);
174 if (chip) { /* if !chip, fw upload has been performed */
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
189static const struct usb_device_id device_table[] = {
190 {
191 .match_flags = USB_DEVICE_ID_MATCH_DEVICE,
192 .idVendor = 0x0ccd,
193 .idProduct = 0x0080
194 },
195 {}
196};
197
198MODULE_DEVICE_TABLE(usb, device_table);
199
200static struct usb_driver usb_driver = {
201 .name = "snd-usb-6fire",
202 .probe = usb6fire_chip_probe,
203 .disconnect = usb6fire_chip_disconnect,
204 .id_table = device_table,
205};
206
207module_usb_driver(usb_driver);