2 * Linux driver for TerraTec DMX 6Fire USB
6 * Author: Torsten Schenk <torsten.schenk@zoho.com>
7 * Created: Jan 01, 2011
9 * Copyright: (C) Torsten Schenk
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.
17 #include <linux/interrupt.h>
18 #include <sound/control.h>
24 static char *opt_coax_texts[2] = { "Optical", "Coax" };
25 static char *line_phono_texts[2] = { "Line", "Phono" };
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.
32 static 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 };
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.
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 */
68 static const int rates_altsetting[] = { 1, 1, 2, 2, 3, 3 };
69 /* values to write to soundcard register for all samplerates */
70 static const u16 rates_6fire_vl[] = {0x00, 0x01, 0x00, 0x01, 0x00, 0x01};
71 static const u16 rates_6fire_vh[] = {0x11, 0x11, 0x10, 0x10, 0x00, 0x00};
74 DIGITAL_THRU_ONLY_SAMPLERATE = 3
77 static void usb6fire_control_master_vol_update(struct control_runtime *rt)
79 struct comm_runtime *comm_rt = rt->chip->comm;
82 comm_rt->write8(comm_rt, 0x12, 0x0f, 0x7f -
83 log_volume_table[rt->master_vol]);
85 comm_rt->write8(comm_rt, 0x12, 0x0e, 0x00);
89 static void usb6fire_control_line_phono_update(struct control_runtime *rt)
91 struct comm_runtime *comm_rt = rt->chip->comm;
93 comm_rt->write8(comm_rt, 0x22, 0x02, rt->line_phono_switch);
94 comm_rt->write8(comm_rt, 0x21, 0x02, rt->line_phono_switch);
98 static void usb6fire_control_opt_coax_update(struct control_runtime *rt)
100 struct comm_runtime *comm_rt = rt->chip->comm;
102 comm_rt->write8(comm_rt, 0x22, 0x00, rt->opt_coax_switch);
103 comm_rt->write8(comm_rt, 0x21, 0x00, rt->opt_coax_switch);
107 static int usb6fire_control_set_rate(struct control_runtime *rt, int rate)
110 struct usb_device *device = rt->chip->dev;
111 struct comm_runtime *comm_rt = rt->chip->comm;
113 if (rate < 0 || rate >= CONTROL_N_RATES)
116 ret = usb_set_interface(device, 1, rates_altsetting[rate]);
120 /* set soundcard clock */
121 ret = comm_rt->write16(comm_rt, 0x02, 0x01, rates_6fire_vl[rate],
122 rates_6fire_vh[rate]);
129 static int usb6fire_control_set_channels(
130 struct control_runtime *rt, int n_analog_out,
131 int n_analog_in, bool spdif_out, bool spdif_in)
134 struct comm_runtime *comm_rt = rt->chip->comm;
136 /* enable analog inputs and outputs
137 * (one bit per stereo-channel) */
138 ret = comm_rt->write16(comm_rt, 0x02, 0x02,
139 (1 << (n_analog_out / 2)) - 1,
140 (1 << (n_analog_in / 2)) - 1);
144 /* disable digital inputs and outputs */
145 /* TODO: use spdif_x to enable/disable digital channels */
146 ret = comm_rt->write16(comm_rt, 0x02, 0x03, 0x00, 0x00);
153 static int usb6fire_control_streaming_update(struct control_runtime *rt)
155 struct comm_runtime *comm_rt = rt->chip->comm;
158 if (!rt->usb_streaming && rt->digital_thru_switch)
159 usb6fire_control_set_rate(rt,
160 DIGITAL_THRU_ONLY_SAMPLERATE);
161 return comm_rt->write16(comm_rt, 0x02, 0x00, 0x00,
162 (rt->usb_streaming ? 0x01 : 0x00) |
163 (rt->digital_thru_switch ? 0x08 : 0x00));
168 static int usb6fire_control_master_vol_info(struct snd_kcontrol *kcontrol,
169 struct snd_ctl_elem_info *uinfo)
171 uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
173 uinfo->value.integer.min = 0;
174 uinfo->value.integer.max = 127;
178 static int usb6fire_control_master_vol_put(struct snd_kcontrol *kcontrol,
179 struct snd_ctl_elem_value *ucontrol)
181 struct control_runtime *rt = snd_kcontrol_chip(kcontrol);
183 if (rt->master_vol != ucontrol->value.integer.value[0]) {
184 rt->master_vol = ucontrol->value.integer.value[0];
185 usb6fire_control_master_vol_update(rt);
191 static int usb6fire_control_master_vol_get(struct snd_kcontrol *kcontrol,
192 struct snd_ctl_elem_value *ucontrol)
194 struct control_runtime *rt = snd_kcontrol_chip(kcontrol);
195 ucontrol->value.integer.value[0] = rt->master_vol;
199 static int usb6fire_control_line_phono_info(struct snd_kcontrol *kcontrol,
200 struct snd_ctl_elem_info *uinfo)
202 uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
204 uinfo->value.enumerated.items = 2;
205 if (uinfo->value.enumerated.item > 1)
206 uinfo->value.enumerated.item = 1;
207 strcpy(uinfo->value.enumerated.name,
208 line_phono_texts[uinfo->value.enumerated.item]);
212 static int usb6fire_control_line_phono_put(struct snd_kcontrol *kcontrol,
213 struct snd_ctl_elem_value *ucontrol)
215 struct control_runtime *rt = snd_kcontrol_chip(kcontrol);
217 if (rt->line_phono_switch != ucontrol->value.integer.value[0]) {
218 rt->line_phono_switch = ucontrol->value.integer.value[0];
219 usb6fire_control_line_phono_update(rt);
225 static int usb6fire_control_line_phono_get(struct snd_kcontrol *kcontrol,
226 struct snd_ctl_elem_value *ucontrol)
228 struct control_runtime *rt = snd_kcontrol_chip(kcontrol);
229 ucontrol->value.integer.value[0] = rt->line_phono_switch;
233 static int usb6fire_control_opt_coax_info(struct snd_kcontrol *kcontrol,
234 struct snd_ctl_elem_info *uinfo)
236 uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
238 uinfo->value.enumerated.items = 2;
239 if (uinfo->value.enumerated.item > 1)
240 uinfo->value.enumerated.item = 1;
241 strcpy(uinfo->value.enumerated.name,
242 opt_coax_texts[uinfo->value.enumerated.item]);
246 static int usb6fire_control_opt_coax_put(struct snd_kcontrol *kcontrol,
247 struct snd_ctl_elem_value *ucontrol)
249 struct control_runtime *rt = snd_kcontrol_chip(kcontrol);
252 if (rt->opt_coax_switch != ucontrol->value.enumerated.item[0]) {
253 rt->opt_coax_switch = ucontrol->value.enumerated.item[0];
254 usb6fire_control_opt_coax_update(rt);
260 static int usb6fire_control_opt_coax_get(struct snd_kcontrol *kcontrol,
261 struct snd_ctl_elem_value *ucontrol)
263 struct control_runtime *rt = snd_kcontrol_chip(kcontrol);
264 ucontrol->value.enumerated.item[0] = rt->opt_coax_switch;
268 static int usb6fire_control_digital_thru_put(struct snd_kcontrol *kcontrol,
269 struct snd_ctl_elem_value *ucontrol)
271 struct control_runtime *rt = snd_kcontrol_chip(kcontrol);
274 if (rt->digital_thru_switch != ucontrol->value.integer.value[0]) {
275 rt->digital_thru_switch = ucontrol->value.integer.value[0];
276 usb6fire_control_streaming_update(rt);
282 static int usb6fire_control_digital_thru_get(struct snd_kcontrol *kcontrol,
283 struct snd_ctl_elem_value *ucontrol)
285 struct control_runtime *rt = snd_kcontrol_chip(kcontrol);
286 ucontrol->value.integer.value[0] = rt->digital_thru_switch;
290 static struct __devinitdata snd_kcontrol_new elements[] = {
292 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
293 .name = "Master Playback Volume",
295 .access = SNDRV_CTL_ELEM_ACCESS_READWRITE,
296 .info = usb6fire_control_master_vol_info,
297 .get = usb6fire_control_master_vol_get,
298 .put = usb6fire_control_master_vol_put
301 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
302 .name = "Line/Phono Capture Route",
304 .access = SNDRV_CTL_ELEM_ACCESS_READWRITE,
305 .info = usb6fire_control_line_phono_info,
306 .get = usb6fire_control_line_phono_get,
307 .put = usb6fire_control_line_phono_put
310 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
311 .name = "Opt/Coax Capture Route",
313 .access = SNDRV_CTL_ELEM_ACCESS_READWRITE,
314 .info = usb6fire_control_opt_coax_info,
315 .get = usb6fire_control_opt_coax_get,
316 .put = usb6fire_control_opt_coax_put
319 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
320 .name = "Digital Thru Playback Route",
322 .access = SNDRV_CTL_ELEM_ACCESS_READWRITE,
323 .info = snd_ctl_boolean_mono_info,
324 .get = usb6fire_control_digital_thru_get,
325 .put = usb6fire_control_digital_thru_put
330 int __devinit usb6fire_control_init(struct sfire_chip *chip)
334 struct control_runtime *rt = kzalloc(sizeof(struct control_runtime),
336 struct comm_runtime *comm_rt = chip->comm;
342 rt->update_streaming = usb6fire_control_streaming_update;
343 rt->set_rate = usb6fire_control_set_rate;
344 rt->set_channels = usb6fire_control_set_channels;
347 while (init_data[i].type) {
348 comm_rt->write8(comm_rt, init_data[i].type, init_data[i].reg,
353 usb6fire_control_opt_coax_update(rt);
354 usb6fire_control_line_phono_update(rt);
355 usb6fire_control_master_vol_update(rt);
356 usb6fire_control_streaming_update(rt);
359 while (elements[i].name) {
360 ret = snd_ctl_add(chip->card, snd_ctl_new1(&elements[i], rt));
363 snd_printk(KERN_ERR PREFIX "cannot add control.\n");
373 void usb6fire_control_abort(struct sfire_chip *chip)
376 void usb6fire_control_destroy(struct sfire_chip *chip)
378 kfree(chip->control);
379 chip->control = NULL;