aboutsummaryrefslogtreecommitdiffstats
path: root/sound/usb/6fire
diff options
context:
space:
mode:
Diffstat (limited to 'sound/usb/6fire')
-rw-r--r--sound/usb/6fire/Makefile3
-rw-r--r--sound/usb/6fire/chip.c232
-rw-r--r--sound/usb/6fire/chip.h32
-rw-r--r--sound/usb/6fire/comm.c176
-rw-r--r--sound/usb/6fire/comm.h44
-rw-r--r--sound/usb/6fire/common.h30
-rw-r--r--sound/usb/6fire/control.c275
-rw-r--r--sound/usb/6fire/control.h37
-rw-r--r--sound/usb/6fire/firmware.c426
-rw-r--r--sound/usb/6fire/firmware.h27
-rw-r--r--sound/usb/6fire/midi.c203
-rw-r--r--sound/usb/6fire/midi.h46
-rw-r--r--sound/usb/6fire/pcm.c689
-rw-r--r--sound/usb/6fire/pcm.h76
14 files changed, 2296 insertions, 0 deletions
diff --git a/sound/usb/6fire/Makefile b/sound/usb/6fire/Makefile
new file mode 100644
index 000000000000..dfce6ec53513
--- /dev/null
+++ b/sound/usb/6fire/Makefile
@@ -0,0 +1,3 @@
1snd-usb-6fire-objs += chip.o comm.o midi.o control.o firmware.o pcm.o
2obj-$(CONFIG_SND_USB_6FIRE) += snd-usb-6fire.o
3
diff --git a/sound/usb/6fire/chip.c b/sound/usb/6fire/chip.c
new file mode 100644
index 000000000000..c7dca7b0b9fe
--- /dev/null
+++ b/sound/usb/6fire/chip.c
@@ -0,0 +1,232 @@
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
8 * Version: 0.3.0
9 * Copyright: (C) Torsten Schenk
10 *
11 * This program is free software; you can redistribute it and/or modify
12 * it under the terms of the GNU General Public License as published by
13 * the Free Software Foundation; either version 2 of the License, or
14 * (at your option) any later version.
15 */
16
17#include "chip.h"
18#include "firmware.h"
19#include "pcm.h"
20#include "control.h"
21#include "comm.h"
22#include "midi.h"
23
24#include <linux/moduleparam.h>
25#include <linux/interrupt.h>
26#include <linux/module.h>
27#include <linux/init.h>
28#include <linux/gfp.h>
29#include <sound/initval.h>
30
31MODULE_AUTHOR("Torsten Schenk <torsten.schenk@zoho.com>");
32MODULE_DESCRIPTION("TerraTec DMX 6Fire USB audio driver, version 0.3.0");
33MODULE_LICENSE("GPL v2");
34MODULE_SUPPORTED_DEVICE("{{TerraTec, DMX 6Fire USB}}");
35
36static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX; /* Index 0-max */
37static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR; /* Id for card */
38static int enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_PNP; /* Enable card */
39static struct sfire_chip *chips[SNDRV_CARDS] = SNDRV_DEFAULT_PTR;
40static struct usb_device *devices[SNDRV_CARDS] = SNDRV_DEFAULT_PTR;
41
42module_param_array(index, int, NULL, 0444);
43MODULE_PARM_DESC(index, "Index value for the 6fire sound device");
44module_param_array(id, charp, NULL, 0444);
45MODULE_PARM_DESC(id, "ID string for the 6fire sound device.");
46module_param_array(enable, bool, NULL, 0444);
47MODULE_PARM_DESC(enable, "Enable the 6fire sound device.");
48
49static DEFINE_MUTEX(register_mutex);
50
51static void usb6fire_chip_abort(struct sfire_chip *chip)
52{
53 if (chip) {
54 if (chip->pcm)
55 usb6fire_pcm_abort(chip);
56 if (chip->midi)
57 usb6fire_midi_abort(chip);
58 if (chip->comm)
59 usb6fire_comm_abort(chip);
60 if (chip->control)
61 usb6fire_control_abort(chip);
62 if (chip->card) {
63 snd_card_disconnect(chip->card);
64 snd_card_free_when_closed(chip->card);
65 chip->card = NULL;
66 }
67 }
68}
69
70static void usb6fire_chip_destroy(struct sfire_chip *chip)
71{
72 if (chip) {
73 if (chip->pcm)
74 usb6fire_pcm_destroy(chip);
75 if (chip->midi)
76 usb6fire_midi_destroy(chip);
77 if (chip->comm)
78 usb6fire_comm_destroy(chip);
79 if (chip->control)
80 usb6fire_control_destroy(chip);
81 if (chip->card)
82 snd_card_free(chip->card);
83 }
84}
85
86static int __devinit usb6fire_chip_probe(struct usb_interface *intf,
87 const struct usb_device_id *usb_id)
88{
89 int ret;
90 int i;
91 struct sfire_chip *chip = NULL;
92 struct usb_device *device = interface_to_usbdev(intf);
93 int regidx = -1; /* index in module parameter array */
94 struct snd_card *card = NULL;
95
96 /* look if we already serve this card and return if so */
97 mutex_lock(&register_mutex);
98 for (i = 0; i < SNDRV_CARDS; i++) {
99 if (devices[i] == device) {
100 if (chips[i])
101 chips[i]->intf_count++;
102 usb_set_intfdata(intf, chips[i]);
103 mutex_unlock(&register_mutex);
104 return 0;
105 } else if (regidx < 0)
106 regidx = i;
107 }
108 if (regidx < 0) {
109 mutex_unlock(&register_mutex);
110 snd_printk(KERN_ERR PREFIX "too many cards registered.\n");
111 return -ENODEV;
112 }
113 devices[regidx] = device;
114 mutex_unlock(&register_mutex);
115
116 /* check, if firmware is present on device, upload it if not */
117 ret = usb6fire_fw_init(intf);
118 if (ret < 0)
119 return ret;
120 else if (ret == FW_NOT_READY) /* firmware update performed */
121 return 0;
122
123 /* if we are here, card can be registered in alsa. */
124 if (usb_set_interface(device, 0, 0) != 0) {
125 snd_printk(KERN_ERR PREFIX "can't set first interface.\n");
126 return -EIO;
127 }
128 ret = snd_card_create(index[regidx], id[regidx], THIS_MODULE,
129 sizeof(struct sfire_chip), &card);
130 if (ret < 0) {
131 snd_printk(KERN_ERR PREFIX "cannot create alsa card.\n");
132 return ret;
133 }
134 strcpy(card->driver, "6FireUSB");
135 strcpy(card->shortname, "TerraTec DMX6FireUSB");
136 sprintf(card->longname, "%s at %d:%d", card->shortname,
137 device->bus->busnum, device->devnum);
138 snd_card_set_dev(card, &intf->dev);
139
140 chip = card->private_data;
141 chips[regidx] = chip;
142 chip->dev = device;
143 chip->regidx = regidx;
144 chip->intf_count = 1;
145 chip->card = card;
146
147 ret = usb6fire_comm_init(chip);
148 if (ret < 0) {
149 usb6fire_chip_destroy(chip);
150 return ret;
151 }
152
153 ret = usb6fire_midi_init(chip);
154 if (ret < 0) {
155 usb6fire_chip_destroy(chip);
156 return ret;
157 }
158
159 ret = usb6fire_pcm_init(chip);
160 if (ret < 0) {
161 usb6fire_chip_destroy(chip);
162 return ret;
163 }
164
165 ret = usb6fire_control_init(chip);
166 if (ret < 0) {
167 usb6fire_chip_destroy(chip);
168 return ret;
169 }
170
171 ret = snd_card_register(card);
172 if (ret < 0) {
173 snd_printk(KERN_ERR PREFIX "cannot register card.");
174 usb6fire_chip_destroy(chip);
175 return ret;
176 }
177 usb_set_intfdata(intf, chip);
178 return 0;
179}
180
181static void usb6fire_chip_disconnect(struct usb_interface *intf)
182{
183 struct sfire_chip *chip;
184 struct snd_card *card;
185
186 chip = usb_get_intfdata(intf);
187 if (chip) { /* if !chip, fw upload has been performed */
188 card = chip->card;
189 chip->intf_count--;
190 if (!chip->intf_count) {
191 mutex_lock(&register_mutex);
192 devices[chip->regidx] = NULL;
193 chips[chip->regidx] = NULL;
194 mutex_unlock(&register_mutex);
195
196 chip->shutdown = true;
197 usb6fire_chip_abort(chip);
198 usb6fire_chip_destroy(chip);
199 }
200 }
201}
202
203static struct usb_device_id device_table[] = {
204 {
205 .match_flags = USB_DEVICE_ID_MATCH_DEVICE,
206 .idVendor = 0x0ccd,
207 .idProduct = 0x0080
208 },
209 {}
210};
211
212MODULE_DEVICE_TABLE(usb, device_table);
213
214static struct usb_driver driver = {
215 .name = "snd-usb-6fire",
216 .probe = usb6fire_chip_probe,
217 .disconnect = usb6fire_chip_disconnect,
218 .id_table = device_table,
219};
220
221static int __init usb6fire_chip_init(void)
222{
223 return usb_register(&driver);
224}
225
226static void __exit usb6fire_chip_cleanup(void)
227{
228 usb_deregister(&driver);
229}
230
231module_init(usb6fire_chip_init);
232module_exit(usb6fire_chip_cleanup);
diff --git a/sound/usb/6fire/chip.h b/sound/usb/6fire/chip.h
new file mode 100644
index 000000000000..d11e5cb520f0
--- /dev/null
+++ b/sound/usb/6fire/chip.h
@@ -0,0 +1,32 @@
1/*
2 * Linux driver for TerraTec DMX 6Fire USB
3 *
4 * Author: Torsten Schenk <torsten.schenk@zoho.com>
5 * Created: Jan 01, 2011
6 * Version: 0.3.0
7 * Copyright: (C) Torsten Schenk
8 *
9 * This program is free software; you can redistribute it and/or modify
10 * it under the terms of the GNU General Public License as published by
11 * the Free Software Foundation; either version 2 of the License, or
12 * (at your option) any later version.
13 */
14#ifndef USB6FIRE_CHIP_H
15#define USB6FIRE_CHIP_H
16
17#include "common.h"
18
19struct sfire_chip {
20 struct usb_device *dev;
21 struct snd_card *card;
22 int intf_count; /* number of registered interfaces */
23 int regidx; /* index in module parameter arrays */
24 bool shutdown;
25
26 struct midi_runtime *midi;
27 struct pcm_runtime *pcm;
28 struct control_runtime *control;
29 struct comm_runtime *comm;
30};
31#endif /* USB6FIRE_CHIP_H */
32
diff --git a/sound/usb/6fire/comm.c b/sound/usb/6fire/comm.c
new file mode 100644
index 000000000000..c994daa57af2
--- /dev/null
+++ b/sound/usb/6fire/comm.c
@@ -0,0 +1,176 @@
1/*
2 * Linux driver for TerraTec DMX 6Fire USB
3 *
4 * Device communications
5 *
6 * Author: Torsten Schenk <torsten.schenk@zoho.com>
7 * Created: Jan 01, 2011
8 * Version: 0.3.0
9 * Copyright: (C) Torsten Schenk
10 *
11 * This program is free software; you can redistribute it and/or modify
12 * it under the terms of the GNU General Public License as published by
13 * the Free Software Foundation; either version 2 of the License, or
14 * (at your option) any later version.
15 */
16
17#include "comm.h"
18#include "chip.h"
19#include "midi.h"
20
21enum {
22 COMM_EP = 1,
23 COMM_FPGA_EP = 2
24};
25
26static void usb6fire_comm_init_urb(struct comm_runtime *rt, struct urb *urb,
27 u8 *buffer, void *context, void(*handler)(struct urb *urb))
28{
29 usb_init_urb(urb);
30 urb->transfer_buffer = buffer;
31 urb->pipe = usb_sndintpipe(rt->chip->dev, COMM_EP);
32 urb->complete = handler;
33 urb->context = context;
34 urb->interval = 1;
35 urb->dev = rt->chip->dev;
36}
37
38static void usb6fire_comm_receiver_handler(struct urb *urb)
39{
40 struct comm_runtime *rt = urb->context;
41 struct midi_runtime *midi_rt = rt->chip->midi;
42
43 if (!urb->status) {
44 if (rt->receiver_buffer[0] == 0x10) /* midi in event */
45 if (midi_rt)
46 midi_rt->in_received(midi_rt,
47 rt->receiver_buffer + 2,
48 rt->receiver_buffer[1]);
49 }
50
51 if (!rt->chip->shutdown) {
52 urb->status = 0;
53 urb->actual_length = 0;
54 if (usb_submit_urb(urb, GFP_ATOMIC) < 0)
55 snd_printk(KERN_WARNING PREFIX
56 "comm data receiver aborted.\n");
57 }
58}
59
60static void usb6fire_comm_init_buffer(u8 *buffer, u8 id, u8 request,
61 u8 reg, u8 vl, u8 vh)
62{
63 buffer[0] = 0x01;
64 buffer[2] = request;
65 buffer[3] = id;
66 switch (request) {
67 case 0x02:
68 buffer[1] = 0x05; /* length (starting at buffer[2]) */
69 buffer[4] = reg;
70 buffer[5] = vl;
71 buffer[6] = vh;
72 break;
73
74 case 0x12:
75 buffer[1] = 0x0b; /* length (starting at buffer[2]) */
76 buffer[4] = 0x00;
77 buffer[5] = 0x18;
78 buffer[6] = 0x05;
79 buffer[7] = 0x00;
80 buffer[8] = 0x01;
81 buffer[9] = 0x00;
82 buffer[10] = 0x9e;
83 buffer[11] = reg;
84 buffer[12] = vl;
85 break;
86
87 case 0x20:
88 case 0x21:
89 case 0x22:
90 buffer[1] = 0x04;
91 buffer[4] = reg;
92 buffer[5] = vl;
93 break;
94 }
95}
96
97static int usb6fire_comm_send_buffer(u8 *buffer, struct usb_device *dev)
98{
99 int ret;
100 int actual_len;
101
102 ret = usb_interrupt_msg(dev, usb_sndintpipe(dev, COMM_EP),
103 buffer, buffer[1] + 2, &actual_len, HZ);
104 if (ret < 0)
105 return ret;
106 else if (actual_len != buffer[1] + 2)
107 return -EIO;
108 return 0;
109}
110
111static int usb6fire_comm_write8(struct comm_runtime *rt, u8 request,
112 u8 reg, u8 value)
113{
114 u8 buffer[13]; /* 13: maximum length of message */
115
116 usb6fire_comm_init_buffer(buffer, 0x00, request, reg, value, 0x00);
117 return usb6fire_comm_send_buffer(buffer, rt->chip->dev);
118}
119
120static int usb6fire_comm_write16(struct comm_runtime *rt, u8 request,
121 u8 reg, u8 vl, u8 vh)
122{
123 u8 buffer[13]; /* 13: maximum length of message */
124
125 usb6fire_comm_init_buffer(buffer, 0x00, request, reg, vl, vh);
126 return usb6fire_comm_send_buffer(buffer, rt->chip->dev);
127}
128
129int __devinit usb6fire_comm_init(struct sfire_chip *chip)
130{
131 struct comm_runtime *rt = kzalloc(sizeof(struct comm_runtime),
132 GFP_KERNEL);
133 struct urb *urb = &rt->receiver;
134 int ret;
135
136 if (!rt)
137 return -ENOMEM;
138
139 rt->serial = 1;
140 rt->chip = chip;
141 usb_init_urb(urb);
142 rt->init_urb = usb6fire_comm_init_urb;
143 rt->write8 = usb6fire_comm_write8;
144 rt->write16 = usb6fire_comm_write16;
145
146 /* submit an urb that receives communication data from device */
147 urb->transfer_buffer = rt->receiver_buffer;
148 urb->transfer_buffer_length = COMM_RECEIVER_BUFSIZE;
149 urb->pipe = usb_rcvintpipe(chip->dev, COMM_EP);
150 urb->dev = chip->dev;
151 urb->complete = usb6fire_comm_receiver_handler;
152 urb->context = rt;
153 urb->interval = 1;
154 ret = usb_submit_urb(urb, GFP_KERNEL);
155 if (ret < 0) {
156 kfree(rt);
157 snd_printk(KERN_ERR PREFIX "cannot create comm data receiver.");
158 return ret;
159 }
160 chip->comm = rt;
161 return 0;
162}
163
164void usb6fire_comm_abort(struct sfire_chip *chip)
165{
166 struct comm_runtime *rt = chip->comm;
167
168 if (rt)
169 usb_poison_urb(&rt->receiver);
170}
171
172void usb6fire_comm_destroy(struct sfire_chip *chip)
173{
174 kfree(chip->comm);
175 chip->comm = NULL;
176}
diff --git a/sound/usb/6fire/comm.h b/sound/usb/6fire/comm.h
new file mode 100644
index 000000000000..edc5dc84b888
--- /dev/null
+++ b/sound/usb/6fire/comm.h
@@ -0,0 +1,44 @@
1/*
2 * Linux driver for TerraTec DMX 6Fire USB
3 *
4 * Author: Torsten Schenk <torsten.schenk@zoho.com>
5 * Created: Jan 01, 2011
6 * Version: 0.3.0
7 * Copyright: (C) Torsten Schenk
8 *
9 * This program is free software; you can redistribute it and/or modify
10 * it under the terms of the GNU General Public License as published by
11 * the Free Software Foundation; either version 2 of the License, or
12 * (at your option) any later version.
13 */
14#ifndef USB6FIRE_COMM_H
15#define USB6FIRE_COMM_H
16
17#include "common.h"
18
19enum /* settings for comm */
20{
21 COMM_RECEIVER_BUFSIZE = 64,
22};
23
24struct comm_runtime {
25 struct sfire_chip *chip;
26
27 struct urb receiver;
28 u8 receiver_buffer[COMM_RECEIVER_BUFSIZE];
29
30 u8 serial; /* urb serial */
31
32 void (*init_urb)(struct comm_runtime *rt, struct urb *urb, u8 *buffer,
33 void *context, void(*handler)(struct urb *urb));
34 /* writes control data to the device */
35 int (*write8)(struct comm_runtime *rt, u8 request, u8 reg, u8 value);
36 int (*write16)(struct comm_runtime *rt, u8 request, u8 reg,
37 u8 vh, u8 vl);
38};
39
40int __devinit usb6fire_comm_init(struct sfire_chip *chip);
41void usb6fire_comm_abort(struct sfire_chip *chip);
42void usb6fire_comm_destroy(struct sfire_chip *chip);
43#endif /* USB6FIRE_COMM_H */
44
diff --git a/sound/usb/6fire/common.h b/sound/usb/6fire/common.h
new file mode 100644
index 000000000000..7dbeb4a37831
--- /dev/null
+++ b/sound/usb/6fire/common.h
@@ -0,0 +1,30 @@
1/*
2 * Linux driver for TerraTec DMX 6Fire USB
3 *
4 * Author: Torsten Schenk <torsten.schenk@zoho.com>
5 * Created: Jan 01, 2011
6 * Version: 0.3.0
7 * Copyright: (C) Torsten Schenk
8 *
9 * This program is free software; you can redistribute it and/or modify
10 * it under the terms of the GNU General Public License as published by
11 * the Free Software Foundation; either version 2 of the License, or
12 * (at your option) any later version.
13 */
14
15#ifndef USB6FIRE_COMMON_H
16#define USB6FIRE_COMMON_H
17
18#include <linux/slab.h>
19#include <linux/usb.h>
20#include <sound/core.h>
21
22#define PREFIX "6fire: "
23
24struct sfire_chip;
25struct midi_runtime;
26struct pcm_runtime;
27struct control_runtime;
28struct comm_runtime;
29#endif /* USB6FIRE_COMMON_H */
30
diff --git a/sound/usb/6fire/control.c b/sound/usb/6fire/control.c
new file mode 100644
index 000000000000..248463511186
--- /dev/null
+++ b/sound/usb/6fire/control.c
@@ -0,0 +1,275 @@
1/*
2 * Linux driver for TerraTec DMX 6Fire USB
3 *
4 * Mixer control
5 *
6 * Author: Torsten Schenk <torsten.schenk@zoho.com>
7 * Created: Jan 01, 2011
8 * Version: 0.3.0
9 * Copyright: (C) Torsten Schenk
10 *
11 * This program is free software; you can redistribute it and/or modify
12 * it under the terms of the GNU General Public License as published by
13 * the Free Software Foundation; either version 2 of the License, or
14 * (at your option) any later version.
15 */
16
17#include <linux/interrupt.h>
18#include <sound/control.h>
19
20#include "control.h"
21#include "comm.h"
22#include "chip.h"
23
24static char *opt_coax_texts[2] = { "Optical", "Coax" };
25static char *line_phono_texts[2] = { "Line", "Phono" };
26
27/*
28 * calculated with $value\[i\] = 128 \cdot sqrt[3]{\frac{i}{128}}$
29 * this is done because the linear values cause rapid degredation
30 * of volume in the uppermost region.
31 */
32static const u8 log_volume_table[128] = {
33 0x00, 0x19, 0x20, 0x24, 0x28, 0x2b, 0x2e, 0x30, 0x32, 0x34,
34 0x36, 0x38, 0x3a, 0x3b, 0x3d, 0x3e, 0x40, 0x41, 0x42, 0x43,
35 0x44, 0x46, 0x47, 0x48, 0x49, 0x4a, 0x4b, 0x4c, 0x4d, 0x4e,
36 0x4e, 0x4f, 0x50, 0x51, 0x52, 0x53, 0x53, 0x54, 0x55, 0x56,
37 0x56, 0x57, 0x58, 0x58, 0x59, 0x5a, 0x5b, 0x5b, 0x5c, 0x5c,
38 0x5d, 0x5e, 0x5e, 0x5f, 0x60, 0x60, 0x61, 0x61, 0x62, 0x62,
39 0x63, 0x63, 0x64, 0x65, 0x65, 0x66, 0x66, 0x67, 0x67, 0x68,
40 0x68, 0x69, 0x69, 0x6a, 0x6a, 0x6b, 0x6b, 0x6c, 0x6c, 0x6c,
41 0x6d, 0x6d, 0x6e, 0x6e, 0x6f, 0x6f, 0x70, 0x70, 0x70, 0x71,
42 0x71, 0x72, 0x72, 0x73, 0x73, 0x73, 0x74, 0x74, 0x75, 0x75,
43 0x75, 0x76, 0x76, 0x77, 0x77, 0x77, 0x78, 0x78, 0x78, 0x79,
44 0x79, 0x7a, 0x7a, 0x7a, 0x7b, 0x7b, 0x7b, 0x7c, 0x7c, 0x7c,
45 0x7d, 0x7d, 0x7d, 0x7e, 0x7e, 0x7e, 0x7f, 0x7f };
46
47/*
48 * data that needs to be sent to device. sets up card internal stuff.
49 * values dumped from windows driver and filtered by trial'n'error.
50 */
51static const struct {
52 u8 type;
53 u8 reg;
54 u8 value;
55}
56init_data[] = {
57 { 0x22, 0x00, 0x00 }, { 0x20, 0x00, 0x08 }, { 0x22, 0x01, 0x01 },
58 { 0x20, 0x01, 0x08 }, { 0x22, 0x02, 0x00 }, { 0x20, 0x02, 0x08 },
59 { 0x22, 0x03, 0x00 }, { 0x20, 0x03, 0x08 }, { 0x22, 0x04, 0x00 },
60 { 0x20, 0x04, 0x08 }, { 0x22, 0x05, 0x01 }, { 0x20, 0x05, 0x08 },
61 { 0x22, 0x04, 0x01 }, { 0x12, 0x04, 0x00 }, { 0x12, 0x05, 0x00 },
62 { 0x12, 0x0d, 0x78 }, { 0x12, 0x21, 0x82 }, { 0x12, 0x22, 0x80 },
63 { 0x12, 0x23, 0x00 }, { 0x12, 0x06, 0x02 }, { 0x12, 0x03, 0x00 },
64 { 0x12, 0x02, 0x00 }, { 0x22, 0x03, 0x01 },
65 { 0 } /* TERMINATING ENTRY */
66};
67
68static void usb6fire_control_master_vol_update(struct control_runtime *rt)
69{
70 struct comm_runtime *comm_rt = rt->chip->comm;
71 if (comm_rt) {
72 /* set volume */
73 comm_rt->write8(comm_rt, 0x12, 0x0f, 0x7f -
74 log_volume_table[rt->master_vol]);
75 /* unmute */
76 comm_rt->write8(comm_rt, 0x12, 0x0e, 0x00);
77 }
78}
79
80static void usb6fire_control_line_phono_update(struct control_runtime *rt)
81{
82 struct comm_runtime *comm_rt = rt->chip->comm;
83 if (comm_rt) {
84 comm_rt->write8(comm_rt, 0x22, 0x02, rt->line_phono_switch);
85 comm_rt->write8(comm_rt, 0x21, 0x02, rt->line_phono_switch);
86 }
87}
88
89static void usb6fire_control_opt_coax_update(struct control_runtime *rt)
90{
91 struct comm_runtime *comm_rt = rt->chip->comm;
92 if (comm_rt) {
93 comm_rt->write8(comm_rt, 0x22, 0x00, rt->opt_coax_switch);
94 comm_rt->write8(comm_rt, 0x21, 0x00, rt->opt_coax_switch);
95 }
96}
97
98static int usb6fire_control_master_vol_info(struct snd_kcontrol *kcontrol,
99 struct snd_ctl_elem_info *uinfo)
100{
101 uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
102 uinfo->count = 1;
103 uinfo->value.integer.min = 0;
104 uinfo->value.integer.max = 127;
105 return 0;
106}
107
108static int usb6fire_control_master_vol_put(struct snd_kcontrol *kcontrol,
109 struct snd_ctl_elem_value *ucontrol)
110{
111 struct control_runtime *rt = snd_kcontrol_chip(kcontrol);
112 int changed = 0;
113 if (rt->master_vol != ucontrol->value.integer.value[0]) {
114 rt->master_vol = ucontrol->value.integer.value[0];
115 usb6fire_control_master_vol_update(rt);
116 changed = 1;
117 }
118 return changed;
119}
120
121static int usb6fire_control_master_vol_get(struct snd_kcontrol *kcontrol,
122 struct snd_ctl_elem_value *ucontrol)
123{
124 struct control_runtime *rt = snd_kcontrol_chip(kcontrol);
125 ucontrol->value.integer.value[0] = rt->master_vol;
126 return 0;
127}
128
129static int usb6fire_control_line_phono_info(struct snd_kcontrol *kcontrol,
130 struct snd_ctl_elem_info *uinfo)
131{
132 uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
133 uinfo->count = 1;
134 uinfo->value.enumerated.items = 2;
135 if (uinfo->value.enumerated.item > 1)
136 uinfo->value.enumerated.item = 1;
137 strcpy(uinfo->value.enumerated.name,
138 line_phono_texts[uinfo->value.enumerated.item]);
139 return 0;
140}
141
142static int usb6fire_control_line_phono_put(struct snd_kcontrol *kcontrol,
143 struct snd_ctl_elem_value *ucontrol)
144{
145 struct control_runtime *rt = snd_kcontrol_chip(kcontrol);
146 int changed = 0;
147 if (rt->line_phono_switch != ucontrol->value.integer.value[0]) {
148 rt->line_phono_switch = ucontrol->value.integer.value[0];
149 usb6fire_control_line_phono_update(rt);
150 changed = 1;
151 }
152 return changed;
153}
154
155static int usb6fire_control_line_phono_get(struct snd_kcontrol *kcontrol,
156 struct snd_ctl_elem_value *ucontrol)
157{
158 struct control_runtime *rt = snd_kcontrol_chip(kcontrol);
159 ucontrol->value.integer.value[0] = rt->line_phono_switch;
160 return 0;
161}
162
163static int usb6fire_control_opt_coax_info(struct snd_kcontrol *kcontrol,
164 struct snd_ctl_elem_info *uinfo)
165{
166 uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
167 uinfo->count = 1;
168 uinfo->value.enumerated.items = 2;
169 if (uinfo->value.enumerated.item > 1)
170 uinfo->value.enumerated.item = 1;
171 strcpy(uinfo->value.enumerated.name,
172 opt_coax_texts[uinfo->value.enumerated.item]);
173 return 0;
174}
175
176static int usb6fire_control_opt_coax_put(struct snd_kcontrol *kcontrol,
177 struct snd_ctl_elem_value *ucontrol)
178{
179 struct control_runtime *rt = snd_kcontrol_chip(kcontrol);
180 int changed = 0;
181
182 if (rt->opt_coax_switch != ucontrol->value.enumerated.item[0]) {
183 rt->opt_coax_switch = ucontrol->value.enumerated.item[0];
184 usb6fire_control_opt_coax_update(rt);
185 changed = 1;
186 }
187 return changed;
188}
189
190static int usb6fire_control_opt_coax_get(struct snd_kcontrol *kcontrol,
191 struct snd_ctl_elem_value *ucontrol)
192{
193 struct control_runtime *rt = snd_kcontrol_chip(kcontrol);
194 ucontrol->value.enumerated.item[0] = rt->opt_coax_switch;
195 return 0;
196}
197
198static struct __devinitdata snd_kcontrol_new elements[] = {
199 {
200 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
201 .name = "Master Playback Volume",
202 .index = 0,
203 .access = SNDRV_CTL_ELEM_ACCESS_READWRITE,
204 .info = usb6fire_control_master_vol_info,
205 .get = usb6fire_control_master_vol_get,
206 .put = usb6fire_control_master_vol_put
207 },
208 {
209 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
210 .name = "Line/Phono Capture Route",
211 .index = 0,
212 .access = SNDRV_CTL_ELEM_ACCESS_READWRITE,
213 .info = usb6fire_control_line_phono_info,
214 .get = usb6fire_control_line_phono_get,
215 .put = usb6fire_control_line_phono_put
216 },
217 {
218 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
219 .name = "Opt/Coax Capture Route",
220 .index = 0,
221 .access = SNDRV_CTL_ELEM_ACCESS_READWRITE,
222 .info = usb6fire_control_opt_coax_info,
223 .get = usb6fire_control_opt_coax_get,
224 .put = usb6fire_control_opt_coax_put
225 },
226 {}
227};
228
229int __devinit usb6fire_control_init(struct sfire_chip *chip)
230{
231 int i;
232 int ret;
233 struct control_runtime *rt = kzalloc(sizeof(struct control_runtime),
234 GFP_KERNEL);
235 struct comm_runtime *comm_rt = chip->comm;
236
237 if (!rt)
238 return -ENOMEM;
239
240 rt->chip = chip;
241
242 i = 0;
243 while (init_data[i].type) {
244 comm_rt->write8(comm_rt, init_data[i].type, init_data[i].reg,
245 init_data[i].value);
246 i++;
247 }
248
249 usb6fire_control_opt_coax_update(rt);
250 usb6fire_control_line_phono_update(rt);
251 usb6fire_control_master_vol_update(rt);
252
253 i = 0;
254 while (elements[i].name) {
255 ret = snd_ctl_add(chip->card, snd_ctl_new1(&elements[i], rt));
256 if (ret < 0) {
257 kfree(rt);
258 snd_printk(KERN_ERR PREFIX "cannot add control.\n");
259 return ret;
260 }
261 i++;
262 }
263
264 chip->control = rt;
265 return 0;
266}
267
268void usb6fire_control_abort(struct sfire_chip *chip)
269{}
270
271void usb6fire_control_destroy(struct sfire_chip *chip)
272{
273 kfree(chip->control);
274 chip->control = NULL;
275}
diff --git a/sound/usb/6fire/control.h b/sound/usb/6fire/control.h
new file mode 100644
index 000000000000..b534c777ab02
--- /dev/null
+++ b/sound/usb/6fire/control.h
@@ -0,0 +1,37 @@
1/*
2 * Linux driver for TerraTec DMX 6Fire USB
3 *
4 * Author: Torsten Schenk <torsten.schenk@zoho.com>
5 * Created: Jan 01, 2011
6 * Version: 0.3.0
7 * Copyright: (C) Torsten Schenk
8 *
9 * This program is free software; you can redistribute it and/or modify
10 * it under the terms of the GNU General Public License as published by
11 * the Free Software Foundation; either version 2 of the License, or
12 * (at your option) any later version.
13 */
14
15#ifndef USB6FIRE_CONTROL_H
16#define USB6FIRE_CONTROL_H
17
18#include "common.h"
19
20enum {
21 CONTROL_MAX_ELEMENTS = 32
22};
23
24struct control_runtime {
25 struct sfire_chip *chip;
26
27 struct snd_kcontrol *element[CONTROL_MAX_ELEMENTS];
28 bool opt_coax_switch;
29 bool line_phono_switch;
30 u8 master_vol;
31};
32
33int __devinit usb6fire_control_init(struct sfire_chip *chip);
34void usb6fire_control_abort(struct sfire_chip *chip);
35void usb6fire_control_destroy(struct sfire_chip *chip);
36#endif /* USB6FIRE_CONTROL_H */
37
diff --git a/sound/usb/6fire/firmware.c b/sound/usb/6fire/firmware.c
new file mode 100644
index 000000000000..9081a54a9c6c
--- /dev/null
+++ b/sound/usb/6fire/firmware.c
@@ -0,0 +1,426 @@
1/*
2 * Linux driver for TerraTec DMX 6Fire USB
3 *
4 * Firmware loader
5 *
6 * Currently not working for all devices. To be able to use the device
7 * in linux, it is also possible to let the windows driver upload the firmware.
8 * For that, start the computer in windows and reboot.
9 * As long as the device is connected to the power supply, no firmware reload
10 * needs to be performed.
11 *
12 * Author: Torsten Schenk <torsten.schenk@zoho.com>
13 * Created: Jan 01, 2011
14 * Version: 0.3.0
15 * Copyright: (C) Torsten Schenk
16 *
17 * This program is free software; you can redistribute it and/or modify
18 * it under the terms of the GNU General Public License as published by
19 * the Free Software Foundation; either version 2 of the License, or
20 * (at your option) any later version.
21 */
22
23#include <linux/firmware.h>
24
25#include "firmware.h"
26#include "chip.h"
27
28MODULE_FIRMWARE("6fire/dmx6firel2.ihx");
29MODULE_FIRMWARE("6fire/dmx6fireap.ihx");
30MODULE_FIRMWARE("6fire/dmx6firecf.bin");
31
32enum {
33 FPGA_BUFSIZE = 512, FPGA_EP = 2
34};
35
36static const u8 BIT_REVERSE_TABLE[256] = {
37 0x00, 0x80, 0x40, 0xc0, 0x20, 0xa0, 0x60, 0xe0, 0x10, 0x90, 0x50,
38 0xd0, 0x30, 0xb0, 0x70, 0xf0, 0x08, 0x88, 0x48, 0xc8, 0x28, 0xa8,
39 0x68, 0xe8, 0x18, 0x98, 0x58, 0xd8, 0x38, 0xb8, 0x78, 0xf8, 0x04,
40 0x84, 0x44, 0xc4, 0x24, 0xa4, 0x64, 0xe4, 0x14, 0x94, 0x54, 0xd4,
41 0x34, 0xb4, 0x74, 0xf4, 0x0c, 0x8c, 0x4c, 0xcc, 0x2c, 0xac, 0x6c,
42 0xec, 0x1c, 0x9c, 0x5c, 0xdc, 0x3c, 0xbc, 0x7c, 0xfc, 0x02, 0x82,
43 0x42, 0xc2, 0x22, 0xa2, 0x62, 0xe2, 0x12, 0x92, 0x52, 0xd2, 0x32,
44 0xb2, 0x72, 0xf2, 0x0a, 0x8a, 0x4a, 0xca, 0x2a, 0xaa, 0x6a, 0xea,
45 0x1a, 0x9a, 0x5a, 0xda, 0x3a, 0xba, 0x7a, 0xfa, 0x06, 0x86, 0x46,
46 0xc6, 0x26, 0xa6, 0x66, 0xe6, 0x16, 0x96, 0x56, 0xd6, 0x36, 0xb6,
47 0x76, 0xf6, 0x0e, 0x8e, 0x4e, 0xce, 0x2e, 0xae, 0x6e, 0xee, 0x1e,
48 0x9e, 0x5e, 0xde, 0x3e, 0xbe, 0x7e, 0xfe, 0x01, 0x81, 0x41, 0xc1,
49 0x21, 0xa1, 0x61, 0xe1, 0x11, 0x91, 0x51, 0xd1, 0x31, 0xb1, 0x71,
50 0xf1, 0x09, 0x89, 0x49, 0xc9, 0x29, 0xa9, 0x69, 0xe9, 0x19, 0x99,
51 0x59, 0xd9, 0x39, 0xb9, 0x79, 0xf9, 0x05, 0x85, 0x45, 0xc5, 0x25,
52 0xa5, 0x65, 0xe5, 0x15, 0x95, 0x55, 0xd5, 0x35, 0xb5, 0x75, 0xf5,
53 0x0d, 0x8d, 0x4d, 0xcd, 0x2d, 0xad, 0x6d, 0xed, 0x1d, 0x9d, 0x5d,
54 0xdd, 0x3d, 0xbd, 0x7d, 0xfd, 0x03, 0x83, 0x43, 0xc3, 0x23, 0xa3,
55 0x63, 0xe3, 0x13, 0x93, 0x53, 0xd3, 0x33, 0xb3, 0x73, 0xf3, 0x0b,
56 0x8b, 0x4b, 0xcb, 0x2b, 0xab, 0x6b, 0xeb, 0x1b, 0x9b, 0x5b, 0xdb,
57 0x3b, 0xbb, 0x7b, 0xfb, 0x07, 0x87, 0x47, 0xc7, 0x27, 0xa7, 0x67,
58 0xe7, 0x17, 0x97, 0x57, 0xd7, 0x37, 0xb7, 0x77, 0xf7, 0x0f, 0x8f,
59 0x4f, 0xcf, 0x2f, 0xaf, 0x6f, 0xef, 0x1f, 0x9f, 0x5f, 0xdf, 0x3f,
60 0xbf, 0x7f, 0xff };
61
62/*
63 * wMaxPacketSize of pcm endpoints.
64 * keep synced with rates_in_packet_size and rates_out_packet_size in pcm.c
65 * fpp: frames per isopacket
66 *
67 * CAUTION: keep sizeof <= buffer[] in usb6fire_fw_init
68 */
69static const u8 ep_w_max_packet_size[] = {
70 0xe4, 0x00, 0xe4, 0x00, /* alt 1: 228 EP2 and EP6 (7 fpp) */
71 0xa4, 0x01, 0xa4, 0x01, /* alt 2: 420 EP2 and EP6 (13 fpp)*/
72 0x94, 0x01, 0x5c, 0x02 /* alt 3: 404 EP2 and 604 EP6 (25 fpp) */
73};
74
75struct ihex_record {
76 u16 address;
77 u8 len;
78 u8 data[256];
79 char error; /* true if an error occured parsing this record */
80
81 u8 max_len; /* maximum record length in whole ihex */
82
83 /* private */
84 const char *txt_data;
85 unsigned int txt_length;
86 unsigned int txt_offset; /* current position in txt_data */
87};
88
89static u8 usb6fire_fw_ihex_nibble(const u8 n)
90{
91 if (n >= '0' && n <= '9')
92 return n - '0';
93 else if (n >= 'A' && n <= 'F')
94 return n - ('A' - 10);
95 else if (n >= 'a' && n <= 'f')
96 return n - ('a' - 10);
97 return 0;
98}
99
100static u8 usb6fire_fw_ihex_hex(const u8 *data, u8 *crc)
101{
102 u8 val = (usb6fire_fw_ihex_nibble(data[0]) << 4) |
103 usb6fire_fw_ihex_nibble(data[1]);
104 *crc += val;
105 return val;
106}
107
108/*
109 * returns true if record is available, false otherwise.
110 * iff an error occured, false will be returned and record->error will be true.
111 */
112static bool usb6fire_fw_ihex_next_record(struct ihex_record *record)
113{
114 u8 crc = 0;
115 u8 type;
116 int i;
117
118 record->error = false;
119
120 /* find begin of record (marked by a colon) */
121 while (record->txt_offset < record->txt_length
122 && record->txt_data[record->txt_offset] != ':')
123 record->txt_offset++;
124 if (record->txt_offset == record->txt_length)
125 return false;
126
127 /* number of characters needed for len, addr and type entries */
128 record->txt_offset++;
129 if (record->txt_offset + 8 > record->txt_length) {
130 record->error = true;
131 return false;
132 }
133
134 record->len = usb6fire_fw_ihex_hex(record->txt_data +
135 record->txt_offset, &crc);
136 record->txt_offset += 2;
137 record->address = usb6fire_fw_ihex_hex(record->txt_data +
138 record->txt_offset, &crc) << 8;
139 record->txt_offset += 2;
140 record->address |= usb6fire_fw_ihex_hex(record->txt_data +
141 record->txt_offset, &crc);
142 record->txt_offset += 2;
143 type = usb6fire_fw_ihex_hex(record->txt_data +
144 record->txt_offset, &crc);
145 record->txt_offset += 2;
146
147 /* number of characters needed for data and crc entries */
148 if (record->txt_offset + 2 * (record->len + 1) > record->txt_length) {
149 record->error = true;
150 return false;
151 }
152 for (i = 0; i < record->len; i++) {
153 record->data[i] = usb6fire_fw_ihex_hex(record->txt_data
154 + record->txt_offset, &crc);
155 record->txt_offset += 2;
156 }
157 usb6fire_fw_ihex_hex(record->txt_data + record->txt_offset, &crc);
158 if (crc) {
159 record->error = true;
160 return false;
161 }
162
163 if (type == 1 || !record->len) /* eof */
164 return false;
165 else if (type == 0)
166 return true;
167 else {
168 record->error = true;
169 return false;
170 }
171}
172
173static int usb6fire_fw_ihex_init(const struct firmware *fw,
174 struct ihex_record *record)
175{
176 record->txt_data = fw->data;
177 record->txt_length = fw->size;
178 record->txt_offset = 0;
179 record->max_len = 0;
180 /* read all records, if loop ends, record->error indicates,
181 * whether ihex is valid. */
182 while (usb6fire_fw_ihex_next_record(record))
183 record->max_len = max(record->len, record->max_len);
184 if (record->error)
185 return -EINVAL;
186 record->txt_offset = 0;
187 return 0;
188}
189
190static int usb6fire_fw_ezusb_write(struct usb_device *device,
191 int type, int value, char *data, int len)
192{
193 int ret;
194
195 ret = usb_control_msg(device, usb_sndctrlpipe(device, 0), type,
196 USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
197 value, 0, data, len, HZ);
198 if (ret < 0)
199 return ret;
200 else if (ret != len)
201 return -EIO;
202 return 0;
203}
204
205static int usb6fire_fw_ezusb_read(struct usb_device *device,
206 int type, int value, char *data, int len)
207{
208 int ret = usb_control_msg(device, usb_rcvctrlpipe(device, 0), type,
209 USB_DIR_IN | USB_TYPE_VENDOR | USB_RECIP_DEVICE, value,
210 0, data, len, HZ);
211 if (ret < 0)
212 return ret;
213 else if (ret != len)
214 return -EIO;
215 return 0;
216}
217
218static int usb6fire_fw_fpga_write(struct usb_device *device,
219 char *data, int len)
220{
221 int actual_len;
222 int ret;
223
224 ret = usb_bulk_msg(device, usb_sndbulkpipe(device, FPGA_EP), data, len,
225 &actual_len, HZ);
226 if (ret < 0)
227 return ret;
228 else if (actual_len != len)
229 return -EIO;
230 return 0;
231}
232
233static int usb6fire_fw_ezusb_upload(
234 struct usb_interface *intf, const char *fwname,
235 unsigned int postaddr, u8 *postdata, unsigned int postlen)
236{
237 int ret;
238 u8 data;
239 struct usb_device *device = interface_to_usbdev(intf);
240 const struct firmware *fw = 0;
241 struct ihex_record *rec = kmalloc(sizeof(struct ihex_record),
242 GFP_KERNEL);
243
244 if (!rec)
245 return -ENOMEM;
246
247 ret = request_firmware(&fw, fwname, &device->dev);
248 if (ret < 0) {
249 kfree(rec);
250 snd_printk(KERN_ERR PREFIX "error requesting ezusb "
251 "firmware %s.\n", fwname);
252 return ret;
253 }
254 ret = usb6fire_fw_ihex_init(fw, rec);
255 if (ret < 0) {
256 kfree(rec);
257 snd_printk(KERN_ERR PREFIX "error validating ezusb "
258 "firmware %s.\n", fwname);
259 return ret;
260 }
261 /* upload firmware image */
262 data = 0x01; /* stop ezusb cpu */
263 ret = usb6fire_fw_ezusb_write(device, 0xa0, 0xe600, &data, 1);
264 if (ret < 0) {
265 kfree(rec);
266 release_firmware(fw);
267 snd_printk(KERN_ERR PREFIX "unable to upload ezusb "
268 "firmware %s: begin message.\n", fwname);
269 return ret;
270 }
271
272 while (usb6fire_fw_ihex_next_record(rec)) { /* write firmware */
273 ret = usb6fire_fw_ezusb_write(device, 0xa0, rec->address,
274 rec->data, rec->len);
275 if (ret < 0) {
276 kfree(rec);
277 release_firmware(fw);
278 snd_printk(KERN_ERR PREFIX "unable to upload ezusb "
279 "firmware %s: data urb.\n", fwname);
280 return ret;
281 }
282 }
283
284 release_firmware(fw);
285 kfree(rec);
286 if (postdata) { /* write data after firmware has been uploaded */
287 ret = usb6fire_fw_ezusb_write(device, 0xa0, postaddr,
288 postdata, postlen);
289 if (ret < 0) {
290 snd_printk(KERN_ERR PREFIX "unable to upload ezusb "
291 "firmware %s: post urb.\n", fwname);
292 return ret;
293 }
294 }
295
296 data = 0x00; /* resume ezusb cpu */
297 ret = usb6fire_fw_ezusb_write(device, 0xa0, 0xe600, &data, 1);
298 if (ret < 0) {
299 release_firmware(fw);
300 snd_printk(KERN_ERR PREFIX "unable to upload ezusb "
301 "firmware %s: end message.\n", fwname);
302 return ret;
303 }
304 return 0;
305}
306
307static int usb6fire_fw_fpga_upload(
308 struct usb_interface *intf, const char *fwname)
309{
310 int ret;
311 int i;
312 struct usb_device *device = interface_to_usbdev(intf);
313 u8 *buffer = kmalloc(FPGA_BUFSIZE, GFP_KERNEL);
314 const char *c;
315 const char *end;
316 const struct firmware *fw;
317
318 if (!buffer)
319 return -ENOMEM;
320
321 ret = request_firmware(&fw, fwname, &device->dev);
322 if (ret < 0) {
323 snd_printk(KERN_ERR PREFIX "unable to get fpga firmware %s.\n",
324 fwname);
325 kfree(buffer);
326 return -EIO;
327 }
328
329 c = fw->data;
330 end = fw->data + fw->size;
331
332 ret = usb6fire_fw_ezusb_write(device, 8, 0, NULL, 0);
333 if (ret < 0) {
334 kfree(buffer);
335 release_firmware(fw);
336 snd_printk(KERN_ERR PREFIX "unable to upload fpga firmware: "
337 "begin urb.\n");
338 return ret;
339 }
340
341 while (c != end) {
342 for (i = 0; c != end && i < FPGA_BUFSIZE; i++, c++)
343 buffer[i] = BIT_REVERSE_TABLE[(u8) *c];
344
345 ret = usb6fire_fw_fpga_write(device, buffer, i);
346 if (ret < 0) {
347 release_firmware(fw);
348 kfree(buffer);
349 snd_printk(KERN_ERR PREFIX "unable to upload fpga "
350 "firmware: fw urb.\n");
351 return ret;
352 }
353 }
354 release_firmware(fw);
355 kfree(buffer);
356
357 ret = usb6fire_fw_ezusb_write(device, 9, 0, NULL, 0);
358 if (ret < 0) {
359 snd_printk(KERN_ERR PREFIX "unable to upload fpga firmware: "
360 "end urb.\n");
361 return ret;
362 }
363 return 0;
364}
365
366int usb6fire_fw_init(struct usb_interface *intf)
367{
368 int i;
369 int ret;
370 struct usb_device *device = interface_to_usbdev(intf);
371 /* buffer: 8 receiving bytes from device and
372 * sizeof(EP_W_MAX_PACKET_SIZE) bytes for non-const copy */
373 u8 buffer[12];
374
375 ret = usb6fire_fw_ezusb_read(device, 1, 0, buffer, 8);
376 if (ret < 0) {
377 snd_printk(KERN_ERR PREFIX "unable to receive device "
378 "firmware state.\n");
379 return ret;
380 }
381 if (buffer[0] != 0xeb || buffer[1] != 0xaa || buffer[2] != 0x55
382 || buffer[4] != 0x03 || buffer[5] != 0x01 || buffer[7]
383 != 0x00) {
384 snd_printk(KERN_ERR PREFIX "unknown device firmware state "
385 "received from device: ");
386 for (i = 0; i < 8; i++)
387 snd_printk("%02x ", buffer[i]);
388 snd_printk("\n");
389 return -EIO;
390 }
391 /* do we need fpga loader ezusb firmware? */
392 if (buffer[3] == 0x01 && buffer[6] == 0x19) {
393 ret = usb6fire_fw_ezusb_upload(intf,
394 "6fire/dmx6firel2.ihx", 0, NULL, 0);
395 if (ret < 0)
396 return ret;
397 return FW_NOT_READY;
398 }
399 /* do we need fpga firmware and application ezusb firmware? */
400 else if (buffer[3] == 0x02 && buffer[6] == 0x0b) {
401 ret = usb6fire_fw_fpga_upload(intf, "6fire/dmx6firecf.bin");
402 if (ret < 0)
403 return ret;
404 memcpy(buffer, ep_w_max_packet_size,
405 sizeof(ep_w_max_packet_size));
406 ret = usb6fire_fw_ezusb_upload(intf, "6fire/dmx6fireap.ihx",
407 0x0003, buffer, sizeof(ep_w_max_packet_size));
408 if (ret < 0)
409 return ret;
410 return FW_NOT_READY;
411 }
412 /* all fw loaded? */
413 else if (buffer[3] == 0x03 && buffer[6] == 0x0b)
414 return 0;
415 /* unknown data? */
416 else {
417 snd_printk(KERN_ERR PREFIX "unknown device firmware state "
418 "received from device: ");
419 for (i = 0; i < 8; i++)
420 snd_printk("%02x ", buffer[i]);
421 snd_printk("\n");
422 return -EIO;
423 }
424 return 0;
425}
426
diff --git a/sound/usb/6fire/firmware.h b/sound/usb/6fire/firmware.h
new file mode 100644
index 000000000000..008569895381
--- /dev/null
+++ b/sound/usb/6fire/firmware.h
@@ -0,0 +1,27 @@
1/*
2 * Linux driver for TerraTec DMX 6Fire USB
3 *
4 * Author: Torsten Schenk
5 * Created: Jan 01, 2011
6 * Copyright: (C) Torsten Schenk
7 *
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License as published by
10 * the Free Software Foundation; either version 2 of the License, or
11 * (at your option) any later version.
12 */
13
14#ifndef USB6FIRE_FIRMWARE_H
15#define USB6FIRE_FIRMWARE_H
16
17#include "common.h"
18
19enum /* firmware state of device */
20{
21 FW_READY = 0,
22 FW_NOT_READY = 1
23};
24
25int __devinit usb6fire_fw_init(struct usb_interface *intf);
26#endif /* USB6FIRE_FIRMWARE_H */
27
diff --git a/sound/usb/6fire/midi.c b/sound/usb/6fire/midi.c
new file mode 100644
index 000000000000..13f4509dce2b
--- /dev/null
+++ b/sound/usb/6fire/midi.c
@@ -0,0 +1,203 @@
1/*
2 * Linux driver for TerraTec DMX 6Fire USB
3 *
4 * Rawmidi driver
5 *
6 * Author: Torsten Schenk <torsten.schenk@zoho.com>
7 * Created: Jan 01, 2011
8 * Version: 0.3.0
9 * Copyright: (C) Torsten Schenk
10 *
11 * This program is free software; you can redistribute it and/or modify
12 * it under the terms of the GNU General Public License as published by
13 * the Free Software Foundation; either version 2 of the License, or
14 * (at your option) any later version.
15 */
16
17#include <sound/rawmidi.h>
18
19#include "midi.h"
20#include "chip.h"
21#include "comm.h"
22
23static void usb6fire_midi_out_handler(struct urb *urb)
24{
25 struct midi_runtime *rt = urb->context;
26 int ret;
27 unsigned long flags;
28
29 spin_lock_irqsave(&rt->out_lock, flags);
30
31 if (rt->out) {
32 ret = snd_rawmidi_transmit(rt->out, rt->out_buffer + 4,
33 MIDI_BUFSIZE - 4);
34 if (ret > 0) { /* more data available, send next packet */
35 rt->out_buffer[1] = ret + 2;
36 rt->out_buffer[3] = rt->out_serial++;
37 urb->transfer_buffer_length = ret + 4;
38
39 ret = usb_submit_urb(urb, GFP_ATOMIC);
40 if (ret < 0)
41 snd_printk(KERN_ERR PREFIX "midi out urb "
42 "submit failed: %d\n", ret);
43 } else /* no more data to transmit */
44 rt->out = NULL;
45 }
46 spin_unlock_irqrestore(&rt->out_lock, flags);
47}
48
49static void usb6fire_midi_in_received(
50 struct midi_runtime *rt, u8 *data, int length)
51{
52 unsigned long flags;
53
54 spin_lock_irqsave(&rt->in_lock, flags);
55 if (rt->in)
56 snd_rawmidi_receive(rt->in, data, length);
57 spin_unlock_irqrestore(&rt->in_lock, flags);
58}
59
60static int usb6fire_midi_out_open(struct snd_rawmidi_substream *alsa_sub)
61{
62 return 0;
63}
64
65static int usb6fire_midi_out_close(struct snd_rawmidi_substream *alsa_sub)
66{
67 return 0;
68}
69
70static void usb6fire_midi_out_trigger(
71 struct snd_rawmidi_substream *alsa_sub, int up)
72{
73 struct midi_runtime *rt = alsa_sub->rmidi->private_data;
74 struct urb *urb = &rt->out_urb;
75 __s8 ret;
76 unsigned long flags;
77
78 spin_lock_irqsave(&rt->out_lock, flags);
79 if (up) { /* start transfer */
80 if (rt->out) { /* we are already transmitting so just return */
81 spin_unlock_irqrestore(&rt->out_lock, flags);
82 return;
83 }
84
85 ret = snd_rawmidi_transmit(alsa_sub, rt->out_buffer + 4,
86 MIDI_BUFSIZE - 4);
87 if (ret > 0) {
88 rt->out_buffer[1] = ret + 2;
89 rt->out_buffer[3] = rt->out_serial++;
90 urb->transfer_buffer_length = ret + 4;
91
92 ret = usb_submit_urb(urb, GFP_ATOMIC);
93 if (ret < 0)
94 snd_printk(KERN_ERR PREFIX "midi out urb "
95 "submit failed: %d\n", ret);
96 else
97 rt->out = alsa_sub;
98 }
99 } else if (rt->out == alsa_sub)
100 rt->out = NULL;
101 spin_unlock_irqrestore(&rt->out_lock, flags);
102}
103
104static void usb6fire_midi_out_drain(struct snd_rawmidi_substream *alsa_sub)
105{
106 struct midi_runtime *rt = alsa_sub->rmidi->private_data;
107 int retry = 0;
108
109 while (rt->out && retry++ < 100)
110 msleep(10);
111}
112
113static int usb6fire_midi_in_open(struct snd_rawmidi_substream *alsa_sub)
114{
115 return 0;
116}
117
118static int usb6fire_midi_in_close(struct snd_rawmidi_substream *alsa_sub)
119{
120 return 0;
121}
122
123static void usb6fire_midi_in_trigger(
124 struct snd_rawmidi_substream *alsa_sub, int up)
125{
126 struct midi_runtime *rt = alsa_sub->rmidi->private_data;
127 unsigned long flags;
128
129 spin_lock_irqsave(&rt->in_lock, flags);
130 if (up)
131 rt->in = alsa_sub;
132 else
133 rt->in = NULL;
134 spin_unlock_irqrestore(&rt->in_lock, flags);
135}
136
137static struct snd_rawmidi_ops out_ops = {
138 .open = usb6fire_midi_out_open,
139 .close = usb6fire_midi_out_close,
140 .trigger = usb6fire_midi_out_trigger,
141 .drain = usb6fire_midi_out_drain
142};
143
144static struct snd_rawmidi_ops in_ops = {
145 .open = usb6fire_midi_in_open,
146 .close = usb6fire_midi_in_close,
147 .trigger = usb6fire_midi_in_trigger
148};
149
150int __devinit usb6fire_midi_init(struct sfire_chip *chip)
151{
152 int ret;
153 struct midi_runtime *rt = kzalloc(sizeof(struct midi_runtime),
154 GFP_KERNEL);
155 struct comm_runtime *comm_rt = chip->comm;
156
157 if (!rt)
158 return -ENOMEM;
159
160 rt->chip = chip;
161 rt->in_received = usb6fire_midi_in_received;
162 rt->out_buffer[0] = 0x80; /* 'send midi' command */
163 rt->out_buffer[1] = 0x00; /* size of data */
164 rt->out_buffer[2] = 0x00; /* always 0 */
165 spin_lock_init(&rt->in_lock);
166 spin_lock_init(&rt->out_lock);
167
168 comm_rt->init_urb(comm_rt, &rt->out_urb, rt->out_buffer, rt,
169 usb6fire_midi_out_handler);
170
171 ret = snd_rawmidi_new(chip->card, "6FireUSB", 0, 1, 1, &rt->instance);
172 if (ret < 0) {
173 kfree(rt);
174 snd_printk(KERN_ERR PREFIX "unable to create midi.\n");
175 return ret;
176 }
177 rt->instance->private_data = rt;
178 strcpy(rt->instance->name, "DMX6FireUSB MIDI");
179 rt->instance->info_flags = SNDRV_RAWMIDI_INFO_OUTPUT |
180 SNDRV_RAWMIDI_INFO_INPUT |
181 SNDRV_RAWMIDI_INFO_DUPLEX;
182 snd_rawmidi_set_ops(rt->instance, SNDRV_RAWMIDI_STREAM_OUTPUT,
183 &out_ops);
184 snd_rawmidi_set_ops(rt->instance, SNDRV_RAWMIDI_STREAM_INPUT,
185 &in_ops);
186
187 chip->midi = rt;
188 return 0;
189}
190
191void usb6fire_midi_abort(struct sfire_chip *chip)
192{
193 struct midi_runtime *rt = chip->midi;
194
195 if (rt)
196 usb_poison_urb(&rt->out_urb);
197}
198
199void usb6fire_midi_destroy(struct sfire_chip *chip)
200{
201 kfree(chip->midi);
202 chip->midi = NULL;
203}
diff --git a/sound/usb/6fire/midi.h b/sound/usb/6fire/midi.h
new file mode 100644
index 000000000000..97a7bf669135
--- /dev/null
+++ b/sound/usb/6fire/midi.h
@@ -0,0 +1,46 @@
1/*
2 * Linux driver for TerraTec DMX 6Fire USB
3 *
4 * Author: Torsten Schenk <torsten.schenk@zoho.com>
5 * Created: Jan 01, 2011
6 * Version: 0.3.0
7 * Copyright: (C) Torsten Schenk
8 *
9 * This program is free software; you can redistribute it and/or modify
10 * it under the terms of the GNU General Public License as published by
11 * the Free Software Foundation; either version 2 of the License, or
12 * (at your option) any later version.
13 */
14
15#ifndef USB6FIRE_MIDI_H
16#define USB6FIRE_MIDI_H
17
18#include "common.h"
19
20enum {
21 MIDI_BUFSIZE = 64
22};
23
24struct midi_runtime {
25 struct sfire_chip *chip;
26 struct snd_rawmidi *instance;
27
28 struct snd_rawmidi_substream *in;
29 char in_active;
30
31 spinlock_t in_lock;
32 spinlock_t out_lock;
33 struct snd_rawmidi_substream *out;
34 struct urb out_urb;
35 u8 out_serial; /* serial number of out packet */
36 u8 out_buffer[MIDI_BUFSIZE];
37 int buffer_offset;
38
39 void (*in_received)(struct midi_runtime *rt, u8 *data, int length);
40};
41
42int __devinit usb6fire_midi_init(struct sfire_chip *chip);
43void usb6fire_midi_abort(struct sfire_chip *chip);
44void usb6fire_midi_destroy(struct sfire_chip *chip);
45#endif /* USB6FIRE_MIDI_H */
46
diff --git a/sound/usb/6fire/pcm.c b/sound/usb/6fire/pcm.c
new file mode 100644
index 000000000000..705c88e1964c
--- /dev/null
+++ b/sound/usb/6fire/pcm.c
@@ -0,0 +1,689 @@
1/*
2 * Linux driver for TerraTec DMX 6Fire USB
3 *
4 * PCM driver
5 *
6 * Author: Torsten Schenk <torsten.schenk@zoho.com>
7 * Created: Jan 01, 2011
8 * Version: 0.3.0
9 * Copyright: (C) Torsten Schenk
10 *
11 * This program is free software; you can redistribute it and/or modify
12 * it under the terms of the GNU General Public License as published by
13 * the Free Software Foundation; either version 2 of the License, or
14 * (at your option) any later version.
15 */
16
17#include "pcm.h"
18#include "chip.h"
19#include "comm.h"
20
21enum {
22 OUT_N_CHANNELS = 6, IN_N_CHANNELS = 4
23};
24
25/* keep next two synced with
26 * FW_EP_W_MAX_PACKET_SIZE[] and RATES_MAX_PACKET_SIZE */
27static const int rates_in_packet_size[] = { 228, 228, 420, 420, 404, 404 };
28static const int rates_out_packet_size[] = { 228, 228, 420, 420, 604, 604 };
29static const int rates[] = { 44100, 48000, 88200, 96000, 176400, 192000 };
30static const int rates_altsetting[] = { 1, 1, 2, 2, 3, 3 };
31static const int rates_alsaid[] = {
32 SNDRV_PCM_RATE_44100, SNDRV_PCM_RATE_48000,
33 SNDRV_PCM_RATE_88200, SNDRV_PCM_RATE_96000,
34 SNDRV_PCM_RATE_176400, SNDRV_PCM_RATE_192000 };
35
36/* values to write to soundcard register for all samplerates */
37static const u16 rates_6fire_vl[] = {0x00, 0x01, 0x00, 0x01, 0x00, 0x01};
38static const u16 rates_6fire_vh[] = {0x11, 0x11, 0x10, 0x10, 0x00, 0x00};
39
40enum { /* settings for pcm */
41 OUT_EP = 6, IN_EP = 2, MAX_BUFSIZE = 128 * 1024
42};
43
44enum { /* pcm streaming states */
45 STREAM_DISABLED, /* no pcm streaming */
46 STREAM_STARTING, /* pcm streaming requested, waiting to become ready */
47 STREAM_RUNNING, /* pcm streaming running */
48 STREAM_STOPPING
49};
50
51enum { /* pcm sample rates (also index into RATES_XXX[]) */
52 RATE_44KHZ,
53 RATE_48KHZ,
54 RATE_88KHZ,
55 RATE_96KHZ,
56 RATE_176KHZ,
57 RATE_192KHZ
58};
59
60static const struct snd_pcm_hardware pcm_hw = {
61 .info = SNDRV_PCM_INFO_MMAP |
62 SNDRV_PCM_INFO_INTERLEAVED |
63 SNDRV_PCM_INFO_BLOCK_TRANSFER |
64 SNDRV_PCM_INFO_MMAP_VALID |
65 SNDRV_PCM_INFO_BATCH,
66
67 .formats = SNDRV_PCM_FMTBIT_S24_LE,
68
69 .rates = SNDRV_PCM_RATE_44100 |
70 SNDRV_PCM_RATE_48000 |
71 SNDRV_PCM_RATE_88200 |
72 SNDRV_PCM_RATE_96000 |
73 SNDRV_PCM_RATE_176400 |
74 SNDRV_PCM_RATE_192000,
75
76 .rate_min = 44100,
77 .rate_max = 192000,
78 .channels_min = 1,
79 .channels_max = 0, /* set in pcm_open, depending on capture/playback */
80 .buffer_bytes_max = MAX_BUFSIZE,
81 .period_bytes_min = PCM_N_PACKETS_PER_URB * (PCM_MAX_PACKET_SIZE - 4),
82 .period_bytes_max = MAX_BUFSIZE,
83 .periods_min = 2,
84 .periods_max = 1024
85};
86
87static int usb6fire_pcm_set_rate(struct pcm_runtime *rt)
88{
89 int ret;
90 struct usb_device *device = rt->chip->dev;
91 struct comm_runtime *comm_rt = rt->chip->comm;
92
93 if (rt->rate >= ARRAY_SIZE(rates))
94 return -EINVAL;
95 /* disable streaming */
96 ret = comm_rt->write16(comm_rt, 0x02, 0x00, 0x00, 0x00);
97 if (ret < 0) {
98 snd_printk(KERN_ERR PREFIX "error stopping streaming while "
99 "setting samplerate %d.\n", rates[rt->rate]);
100 return ret;
101 }
102
103 ret = usb_set_interface(device, 1, rates_altsetting[rt->rate]);
104 if (ret < 0) {
105 snd_printk(KERN_ERR PREFIX "error setting interface "
106 "altsetting %d for samplerate %d.\n",
107 rates_altsetting[rt->rate], rates[rt->rate]);
108 return ret;
109 }
110
111 /* set soundcard clock */
112 ret = comm_rt->write16(comm_rt, 0x02, 0x01, rates_6fire_vl[rt->rate],
113 rates_6fire_vh[rt->rate]);
114 if (ret < 0) {
115 snd_printk(KERN_ERR PREFIX "error setting samplerate %d.\n",
116 rates[rt->rate]);
117 return ret;
118 }
119
120 /* enable analog inputs and outputs
121 * (one bit per stereo-channel) */
122 ret = comm_rt->write16(comm_rt, 0x02, 0x02,
123 (1 << (OUT_N_CHANNELS / 2)) - 1,
124 (1 << (IN_N_CHANNELS / 2)) - 1);
125 if (ret < 0) {
126 snd_printk(KERN_ERR PREFIX "error initializing analog channels "
127 "while setting samplerate %d.\n",
128 rates[rt->rate]);
129 return ret;
130 }
131 /* disable digital inputs and outputs */
132 ret = comm_rt->write16(comm_rt, 0x02, 0x03, 0x00, 0x00);
133 if (ret < 0) {
134 snd_printk(KERN_ERR PREFIX "error initializing digital "
135 "channels while setting samplerate %d.\n",
136 rates[rt->rate]);
137 return ret;
138 }
139
140 ret = comm_rt->write16(comm_rt, 0x02, 0x00, 0x00, 0x01);
141 if (ret < 0) {
142 snd_printk(KERN_ERR PREFIX "error starting streaming while "
143 "setting samplerate %d.\n", rates[rt->rate]);
144 return ret;
145 }
146
147 rt->in_n_analog = IN_N_CHANNELS;
148 rt->out_n_analog = OUT_N_CHANNELS;
149 rt->in_packet_size = rates_in_packet_size[rt->rate];
150 rt->out_packet_size = rates_out_packet_size[rt->rate];
151 return 0;
152}
153
154static struct pcm_substream *usb6fire_pcm_get_substream(
155 struct snd_pcm_substream *alsa_sub)
156{
157 struct pcm_runtime *rt = snd_pcm_substream_chip(alsa_sub);
158
159 if (alsa_sub->stream == SNDRV_PCM_STREAM_PLAYBACK)
160 return &rt->playback;
161 else if (alsa_sub->stream == SNDRV_PCM_STREAM_CAPTURE)
162 return &rt->capture;
163 snd_printk(KERN_ERR PREFIX "error getting pcm substream slot.\n");
164 return NULL;
165}
166
167/* call with stream_mutex locked */
168static void usb6fire_pcm_stream_stop(struct pcm_runtime *rt)
169{
170 int i;
171
172 if (rt->stream_state != STREAM_DISABLED) {
173 for (i = 0; i < PCM_N_URBS; i++) {
174 usb_kill_urb(&rt->in_urbs[i].instance);
175 usb_kill_urb(&rt->out_urbs[i].instance);
176 }
177 rt->stream_state = STREAM_DISABLED;
178 }
179}
180
181/* call with stream_mutex locked */
182static int usb6fire_pcm_stream_start(struct pcm_runtime *rt)
183{
184 int ret;
185 int i;
186 int k;
187 struct usb_iso_packet_descriptor *packet;
188
189 if (rt->stream_state == STREAM_DISABLED) {
190 /* submit our in urbs */
191 rt->stream_wait_cond = false;
192 rt->stream_state = STREAM_STARTING;
193 for (i = 0; i < PCM_N_URBS; i++) {
194 for (k = 0; k < PCM_N_PACKETS_PER_URB; k++) {
195 packet = &rt->in_urbs[i].packets[k];
196 packet->offset = k * rt->in_packet_size;
197 packet->length = rt->in_packet_size;
198 packet->actual_length = 0;
199 packet->status = 0;
200 }
201 ret = usb_submit_urb(&rt->in_urbs[i].instance,
202 GFP_ATOMIC);
203 if (ret) {
204 usb6fire_pcm_stream_stop(rt);
205 return ret;
206 }
207 }
208
209 /* wait for first out urb to return (sent in in urb handler) */
210 wait_event_timeout(rt->stream_wait_queue, rt->stream_wait_cond,
211 HZ);
212 if (rt->stream_wait_cond)
213 rt->stream_state = STREAM_RUNNING;
214 else {
215 usb6fire_pcm_stream_stop(rt);
216 return -EIO;
217 }
218 }
219 return 0;
220}
221
222/* call with substream locked */
223static void usb6fire_pcm_capture(struct pcm_substream *sub, struct pcm_urb *urb)
224{
225 int i;
226 int frame;
227 int frame_count;
228 unsigned int total_length = 0;
229 struct pcm_runtime *rt = snd_pcm_substream_chip(sub->instance);
230 struct snd_pcm_runtime *alsa_rt = sub->instance->runtime;
231 u32 *src = (u32 *) urb->buffer;
232 u32 *dest = (u32 *) (alsa_rt->dma_area + sub->dma_off
233 * (alsa_rt->frame_bits >> 3));
234 u32 *dest_end = (u32 *) (alsa_rt->dma_area + alsa_rt->buffer_size
235 * (alsa_rt->frame_bits >> 3));
236 int bytes_per_frame = alsa_rt->channels << 2;
237
238 for (i = 0; i < PCM_N_PACKETS_PER_URB; i++) {
239 /* at least 4 header bytes for valid packet.
240 * after that: 32 bits per sample for analog channels */
241 if (urb->packets[i].actual_length > 4)
242 frame_count = (urb->packets[i].actual_length - 4)
243 / (rt->in_n_analog << 2);
244 else
245 frame_count = 0;
246
247 src = (u32 *) (urb->buffer + total_length);
248 src++; /* skip leading 4 bytes of every packet */
249 total_length += urb->packets[i].length;
250 for (frame = 0; frame < frame_count; frame++) {
251 memcpy(dest, src, bytes_per_frame);
252 dest += alsa_rt->channels;
253 src += rt->in_n_analog;
254 sub->dma_off++;
255 sub->period_off++;
256 if (dest == dest_end) {
257 sub->dma_off = 0;
258 dest = (u32 *) alsa_rt->dma_area;
259 }
260 }
261 }
262}
263
264/* call with substream locked */
265static void usb6fire_pcm_playback(struct pcm_substream *sub,
266 struct pcm_urb *urb)
267{
268 int i;
269 int frame;
270 int frame_count;
271 struct pcm_runtime *rt = snd_pcm_substream_chip(sub->instance);
272 struct snd_pcm_runtime *alsa_rt = sub->instance->runtime;
273 u32 *src = (u32 *) (alsa_rt->dma_area + sub->dma_off
274 * (alsa_rt->frame_bits >> 3));
275 u32 *src_end = (u32 *) (alsa_rt->dma_area + alsa_rt->buffer_size
276 * (alsa_rt->frame_bits >> 3));
277 u32 *dest = (u32 *) urb->buffer;
278 int bytes_per_frame = alsa_rt->channels << 2;
279
280 for (i = 0; i < PCM_N_PACKETS_PER_URB; i++) {
281 /* at least 4 header bytes for valid packet.
282 * after that: 32 bits per sample for analog channels */
283 if (urb->packets[i].length > 4)
284 frame_count = (urb->packets[i].length - 4)
285 / (rt->out_n_analog << 2);
286 else
287 frame_count = 0;
288 dest++; /* skip leading 4 bytes of every frame */
289 for (frame = 0; frame < frame_count; frame++) {
290 memcpy(dest, src, bytes_per_frame);
291 src += alsa_rt->channels;
292 dest += rt->out_n_analog;
293 sub->dma_off++;
294 sub->period_off++;
295 if (src == src_end) {
296 src = (u32 *) alsa_rt->dma_area;
297 sub->dma_off = 0;
298 }
299 }
300 }
301}
302
303static void usb6fire_pcm_in_urb_handler(struct urb *usb_urb)
304{
305 struct pcm_urb *in_urb = usb_urb->context;
306 struct pcm_urb *out_urb = in_urb->peer;
307 struct pcm_runtime *rt = in_urb->chip->pcm;
308 struct pcm_substream *sub;
309 unsigned long flags;
310 int total_length = 0;
311 int frame_count;
312 int frame;
313 int channel;
314 int i;
315 u8 *dest;
316
317 if (usb_urb->status || rt->panic || rt->stream_state == STREAM_STOPPING)
318 return;
319 for (i = 0; i < PCM_N_PACKETS_PER_URB; i++)
320 if (in_urb->packets[i].status) {
321 rt->panic = true;
322 return;
323 }
324
325 if (rt->stream_state == STREAM_DISABLED) {
326 snd_printk(KERN_ERR PREFIX "internal error: "
327 "stream disabled in in-urb handler.\n");
328 return;
329 }
330
331 /* receive our capture data */
332 sub = &rt->capture;
333 spin_lock_irqsave(&sub->lock, flags);
334 if (sub->active) {
335 usb6fire_pcm_capture(sub, in_urb);
336 if (sub->period_off >= sub->instance->runtime->period_size) {
337 sub->period_off %= sub->instance->runtime->period_size;
338 spin_unlock_irqrestore(&sub->lock, flags);
339 snd_pcm_period_elapsed(sub->instance);
340 } else
341 spin_unlock_irqrestore(&sub->lock, flags);
342 } else
343 spin_unlock_irqrestore(&sub->lock, flags);
344
345 /* setup out urb structure */
346 for (i = 0; i < PCM_N_PACKETS_PER_URB; i++) {
347 out_urb->packets[i].offset = total_length;
348 out_urb->packets[i].length = (in_urb->packets[i].actual_length
349 - 4) / (rt->in_n_analog << 2)
350 * (rt->out_n_analog << 2) + 4;
351 out_urb->packets[i].status = 0;
352 total_length += out_urb->packets[i].length;
353 }
354 memset(out_urb->buffer, 0, total_length);
355
356 /* now send our playback data (if a free out urb was found) */
357 sub = &rt->playback;
358 spin_lock_irqsave(&sub->lock, flags);
359 if (sub->active) {
360 usb6fire_pcm_playback(sub, out_urb);
361 if (sub->period_off >= sub->instance->runtime->period_size) {
362 sub->period_off %= sub->instance->runtime->period_size;
363 spin_unlock_irqrestore(&sub->lock, flags);
364 snd_pcm_period_elapsed(sub->instance);
365 } else
366 spin_unlock_irqrestore(&sub->lock, flags);
367 } else
368 spin_unlock_irqrestore(&sub->lock, flags);
369
370 /* setup the 4th byte of each sample (0x40 for analog channels) */
371 dest = out_urb->buffer;
372 for (i = 0; i < PCM_N_PACKETS_PER_URB; i++)
373 if (out_urb->packets[i].length >= 4) {
374 frame_count = (out_urb->packets[i].length - 4)
375 / (rt->out_n_analog << 2);
376 *(dest++) = 0xaa;
377 *(dest++) = 0xaa;
378 *(dest++) = frame_count;
379 *(dest++) = 0x00;
380 for (frame = 0; frame < frame_count; frame++)
381 for (channel = 0;
382 channel < rt->out_n_analog;
383 channel++) {
384 dest += 3; /* skip sample data */
385 *(dest++) = 0x40;
386 }
387 }
388 usb_submit_urb(&out_urb->instance, GFP_ATOMIC);
389 usb_submit_urb(&in_urb->instance, GFP_ATOMIC);
390}
391
392static void usb6fire_pcm_out_urb_handler(struct urb *usb_urb)
393{
394 struct pcm_urb *urb = usb_urb->context;
395 struct pcm_runtime *rt = urb->chip->pcm;
396
397 if (rt->stream_state == STREAM_STARTING) {
398 rt->stream_wait_cond = true;
399 wake_up(&rt->stream_wait_queue);
400 }
401}
402
403static int usb6fire_pcm_open(struct snd_pcm_substream *alsa_sub)
404{
405 struct pcm_runtime *rt = snd_pcm_substream_chip(alsa_sub);
406 struct pcm_substream *sub = NULL;
407 struct snd_pcm_runtime *alsa_rt = alsa_sub->runtime;
408
409 if (rt->panic)
410 return -EPIPE;
411
412 mutex_lock(&rt->stream_mutex);
413 alsa_rt->hw = pcm_hw;
414
415 if (alsa_sub->stream == SNDRV_PCM_STREAM_PLAYBACK) {
416 if (rt->rate >= 0)
417 alsa_rt->hw.rates = rates_alsaid[rt->rate];
418 alsa_rt->hw.channels_max = OUT_N_CHANNELS;
419 sub = &rt->playback;
420 } else if (alsa_sub->stream == SNDRV_PCM_STREAM_CAPTURE) {
421 if (rt->rate >= 0)
422 alsa_rt->hw.rates = rates_alsaid[rt->rate];
423 alsa_rt->hw.channels_max = IN_N_CHANNELS;
424 sub = &rt->capture;
425 }
426
427 if (!sub) {
428 mutex_unlock(&rt->stream_mutex);
429 snd_printk(KERN_ERR PREFIX "invalid stream type.\n");
430 return -EINVAL;
431 }
432
433 sub->instance = alsa_sub;
434 sub->active = false;
435 mutex_unlock(&rt->stream_mutex);
436 return 0;
437}
438
439static int usb6fire_pcm_close(struct snd_pcm_substream *alsa_sub)
440{
441 struct pcm_runtime *rt = snd_pcm_substream_chip(alsa_sub);
442 struct pcm_substream *sub = usb6fire_pcm_get_substream(alsa_sub);
443 unsigned long flags;
444
445 if (rt->panic)
446 return 0;
447
448 mutex_lock(&rt->stream_mutex);
449 if (sub) {
450 /* deactivate substream */
451 spin_lock_irqsave(&sub->lock, flags);
452 sub->instance = NULL;
453 sub->active = false;
454 spin_unlock_irqrestore(&sub->lock, flags);
455
456 /* all substreams closed? if so, stop streaming */
457 if (!rt->playback.instance && !rt->capture.instance) {
458 usb6fire_pcm_stream_stop(rt);
459 rt->rate = -1;
460 }
461 }
462 mutex_unlock(&rt->stream_mutex);
463 return 0;
464}
465
466static int usb6fire_pcm_hw_params(struct snd_pcm_substream *alsa_sub,
467 struct snd_pcm_hw_params *hw_params)
468{
469 return snd_pcm_lib_malloc_pages(alsa_sub,
470 params_buffer_bytes(hw_params));
471}
472
473static int usb6fire_pcm_hw_free(struct snd_pcm_substream *alsa_sub)
474{
475 return snd_pcm_lib_free_pages(alsa_sub);
476}
477
478static int usb6fire_pcm_prepare(struct snd_pcm_substream *alsa_sub)
479{
480 struct pcm_runtime *rt = snd_pcm_substream_chip(alsa_sub);
481 struct pcm_substream *sub = usb6fire_pcm_get_substream(alsa_sub);
482 struct snd_pcm_runtime *alsa_rt = alsa_sub->runtime;
483 int i;
484 int ret;
485
486 if (rt->panic)
487 return -EPIPE;
488 if (!sub)
489 return -ENODEV;
490
491 mutex_lock(&rt->stream_mutex);
492 sub->dma_off = 0;
493 sub->period_off = 0;
494
495 if (rt->stream_state == STREAM_DISABLED) {
496 rt->rate = -1;
497 for (i = 0; i < ARRAY_SIZE(rates); i++)
498 if (alsa_rt->rate == rates[i]) {
499 rt->rate = i;
500 break;
501 }
502 if (rt->rate == -1) {
503 mutex_unlock(&rt->stream_mutex);
504 snd_printk("invalid rate %d in prepare.\n",
505 alsa_rt->rate);
506 return -EINVAL;
507 }
508
509 ret = usb6fire_pcm_set_rate(rt);
510 if (ret) {
511 mutex_unlock(&rt->stream_mutex);
512 return ret;
513 }
514 ret = usb6fire_pcm_stream_start(rt);
515 if (ret) {
516 mutex_unlock(&rt->stream_mutex);
517 snd_printk(KERN_ERR PREFIX
518 "could not start pcm stream.\n");
519 return ret;
520 }
521 }
522 mutex_unlock(&rt->stream_mutex);
523 return 0;
524}
525
526static int usb6fire_pcm_trigger(struct snd_pcm_substream *alsa_sub, int cmd)
527{
528 struct pcm_substream *sub = usb6fire_pcm_get_substream(alsa_sub);
529 struct pcm_runtime *rt = snd_pcm_substream_chip(alsa_sub);
530 unsigned long flags;
531
532 if (rt->panic)
533 return -EPIPE;
534 if (!sub)
535 return -ENODEV;
536
537 switch (cmd) {
538 case SNDRV_PCM_TRIGGER_START:
539 case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
540 spin_lock_irqsave(&sub->lock, flags);
541 sub->active = true;
542 spin_unlock_irqrestore(&sub->lock, flags);
543 return 0;
544
545 case SNDRV_PCM_TRIGGER_STOP:
546 case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
547 spin_lock_irqsave(&sub->lock, flags);
548 sub->active = false;
549 spin_unlock_irqrestore(&sub->lock, flags);
550 return 0;
551
552 default:
553 return -EINVAL;
554 }
555}
556
557static snd_pcm_uframes_t usb6fire_pcm_pointer(
558 struct snd_pcm_substream *alsa_sub)
559{
560 struct pcm_substream *sub = usb6fire_pcm_get_substream(alsa_sub);
561 struct pcm_runtime *rt = snd_pcm_substream_chip(alsa_sub);
562 unsigned long flags;
563 snd_pcm_uframes_t ret;
564
565 if (rt->panic || !sub)
566 return SNDRV_PCM_STATE_XRUN;
567
568 spin_lock_irqsave(&sub->lock, flags);
569 ret = sub->dma_off;
570 spin_unlock_irqrestore(&sub->lock, flags);
571 return ret;
572}
573
574static struct snd_pcm_ops pcm_ops = {
575 .open = usb6fire_pcm_open,
576 .close = usb6fire_pcm_close,
577 .ioctl = snd_pcm_lib_ioctl,
578 .hw_params = usb6fire_pcm_hw_params,
579 .hw_free = usb6fire_pcm_hw_free,
580 .prepare = usb6fire_pcm_prepare,
581 .trigger = usb6fire_pcm_trigger,
582 .pointer = usb6fire_pcm_pointer,
583};
584
585static void __devinit usb6fire_pcm_init_urb(struct pcm_urb *urb,
586 struct sfire_chip *chip, bool in, int ep,
587 void (*handler)(struct urb *))
588{
589 urb->chip = chip;
590 usb_init_urb(&urb->instance);
591 urb->instance.transfer_buffer = urb->buffer;
592 urb->instance.transfer_buffer_length =
593 PCM_N_PACKETS_PER_URB * PCM_MAX_PACKET_SIZE;
594 urb->instance.dev = chip->dev;
595 urb->instance.pipe = in ? usb_rcvisocpipe(chip->dev, ep)
596 : usb_sndisocpipe(chip->dev, ep);
597 urb->instance.interval = 1;
598 urb->instance.transfer_flags = URB_ISO_ASAP;
599 urb->instance.complete = handler;
600 urb->instance.context = urb;
601 urb->instance.number_of_packets = PCM_N_PACKETS_PER_URB;
602}
603
604int __devinit usb6fire_pcm_init(struct sfire_chip *chip)
605{
606 int i;
607 int ret;
608 struct snd_pcm *pcm;
609 struct pcm_runtime *rt =
610 kzalloc(sizeof(struct pcm_runtime), GFP_KERNEL);
611
612 if (!rt)
613 return -ENOMEM;
614
615 rt->chip = chip;
616 rt->stream_state = STREAM_DISABLED;
617 rt->rate = -1;
618 init_waitqueue_head(&rt->stream_wait_queue);
619 mutex_init(&rt->stream_mutex);
620
621 spin_lock_init(&rt->playback.lock);
622 spin_lock_init(&rt->capture.lock);
623
624 for (i = 0; i < PCM_N_URBS; i++) {
625 usb6fire_pcm_init_urb(&rt->in_urbs[i], chip, true, IN_EP,
626 usb6fire_pcm_in_urb_handler);
627 usb6fire_pcm_init_urb(&rt->out_urbs[i], chip, false, OUT_EP,
628 usb6fire_pcm_out_urb_handler);
629
630 rt->in_urbs[i].peer = &rt->out_urbs[i];
631 rt->out_urbs[i].peer = &rt->in_urbs[i];
632 }
633
634 ret = snd_pcm_new(chip->card, "DMX6FireUSB", 0, 1, 1, &pcm);
635 if (ret < 0) {
636 kfree(rt);
637 snd_printk(KERN_ERR PREFIX "cannot create pcm instance.\n");
638 return ret;
639 }
640
641 pcm->private_data = rt;
642 strcpy(pcm->name, "DMX 6Fire USB");
643 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &pcm_ops);
644 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &pcm_ops);
645
646 ret = snd_pcm_lib_preallocate_pages_for_all(pcm,
647 SNDRV_DMA_TYPE_CONTINUOUS,
648 snd_dma_continuous_data(GFP_KERNEL),
649 MAX_BUFSIZE, MAX_BUFSIZE);
650 if (ret) {
651 kfree(rt);
652 snd_printk(KERN_ERR PREFIX
653 "error preallocating pcm buffers.\n");
654 return ret;
655 }
656 rt->instance = pcm;
657
658 chip->pcm = rt;
659 return 0;
660}
661
662void usb6fire_pcm_abort(struct sfire_chip *chip)
663{
664 struct pcm_runtime *rt = chip->pcm;
665 int i;
666
667 if (rt) {
668 rt->panic = true;
669
670 if (rt->playback.instance)
671 snd_pcm_stop(rt->playback.instance,
672 SNDRV_PCM_STATE_XRUN);
673 if (rt->capture.instance)
674 snd_pcm_stop(rt->capture.instance,
675 SNDRV_PCM_STATE_XRUN);
676
677 for (i = 0; i < PCM_N_URBS; i++) {
678 usb_poison_urb(&rt->in_urbs[i].instance);
679 usb_poison_urb(&rt->out_urbs[i].instance);
680 }
681
682 }
683}
684
685void usb6fire_pcm_destroy(struct sfire_chip *chip)
686{
687 kfree(chip->pcm);
688 chip->pcm = NULL;
689}
diff --git a/sound/usb/6fire/pcm.h b/sound/usb/6fire/pcm.h
new file mode 100644
index 000000000000..2bee81374002
--- /dev/null
+++ b/sound/usb/6fire/pcm.h
@@ -0,0 +1,76 @@
1/*
2 * Linux driver for TerraTec DMX 6Fire USB
3 *
4 * Author: Torsten Schenk <torsten.schenk@zoho.com>
5 * Created: Jan 01, 2011
6 * Version: 0.3.0
7 * Copyright: (C) Torsten Schenk
8 *
9 * This program is free software; you can redistribute it and/or modify
10 * it under the terms of the GNU General Public License as published by
11 * the Free Software Foundation; either version 2 of the License, or
12 * (at your option) any later version.
13 */
14
15#ifndef USB6FIRE_PCM_H
16#define USB6FIRE_PCM_H
17
18#include <sound/pcm.h>
19#include <linux/mutex.h>
20
21#include "common.h"
22
23enum /* settings for pcm */
24{
25 /* maximum of EP_W_MAX_PACKET_SIZE[] (see firmware.c) */
26 PCM_N_URBS = 16, PCM_N_PACKETS_PER_URB = 8, PCM_MAX_PACKET_SIZE = 604
27};
28
29struct pcm_urb {
30 struct sfire_chip *chip;
31
32 /* BEGIN DO NOT SEPARATE */
33 struct urb instance;
34 struct usb_iso_packet_descriptor packets[PCM_N_PACKETS_PER_URB];
35 /* END DO NOT SEPARATE */
36 u8 buffer[PCM_N_PACKETS_PER_URB * PCM_MAX_PACKET_SIZE];
37
38 struct pcm_urb *peer;
39};
40
41struct pcm_substream {
42 spinlock_t lock;
43 struct snd_pcm_substream *instance;
44
45 bool active;
46
47 snd_pcm_uframes_t dma_off; /* current position in alsa dma_area */
48 snd_pcm_uframes_t period_off; /* current position in current period */
49};
50
51struct pcm_runtime {
52 struct sfire_chip *chip;
53 struct snd_pcm *instance;
54
55 struct pcm_substream playback;
56 struct pcm_substream capture;
57 bool panic; /* if set driver won't do anymore pcm on device */
58
59 struct pcm_urb in_urbs[PCM_N_URBS];
60 struct pcm_urb out_urbs[PCM_N_URBS];
61 int in_packet_size;
62 int out_packet_size;
63 int in_n_analog; /* number of analog channels soundcard sends */
64 int out_n_analog; /* number of analog channels soundcard receives */
65
66 struct mutex stream_mutex;
67 u8 stream_state; /* one of STREAM_XXX (pcm.c) */
68 u8 rate; /* one of PCM_RATE_XXX */
69 wait_queue_head_t stream_wait_queue;
70 bool stream_wait_cond;
71};
72
73int __devinit usb6fire_pcm_init(struct sfire_chip *chip);
74void usb6fire_pcm_abort(struct sfire_chip *chip);
75void usb6fire_pcm_destroy(struct sfire_chip *chip);
76#endif /* USB6FIRE_PCM_H */
generated by cgit v1.2.2 (git 2.25.0) at 2025-01-15 10:02:31 -0500