3 Merging GPIO support into driver:
4 Copyright (C) 2004 Chris Kennedy <c@groovy.org>
5 Copyright (C) 2005-2007 Hans Verkuil <hverkuil@xs4all.nl>
7 This program is free software; you can redistribute it and/or modify
8 it under the terms of the GNU General Public License as published by
9 the Free Software Foundation; either version 2 of the License, or
10 (at your option) any later version.
12 This program is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 GNU General Public License for more details.
17 You should have received a copy of the GNU General Public License
18 along with this program; if not, write to the Free Software
19 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
22 #include "ivtv-driver.h"
23 #include "ivtv-cards.h"
24 #include "ivtv-gpio.h"
25 #include <media/tuner.h>
28 * GPIO assignment of Yuan MPG600/MPG160
30 * bit 15 14 13 12 | 11 10 9 8 | 7 6 5 4 | 3 2 1 0
31 * OUTPUT IN1 IN0 AM3 AM2 AM1 AM0
34 * IN* : Input selection
42 * AM3 0: Normal 1: Mixed(Sub+Main channel)
43 * AM2 0: Subchannel 1: Main channel
44 * AM1 0: Stereo 1: Mono
45 * AM0 0: Normal 1: Mute
47 * DM* : Detected tuner audio Mode
48 * DM1 0: Stereo 1: Mono
49 * DM0 0: Multiplex 1: Normal
51 * GPIO Initial Settings
54 * OUTPUT 0x000C 0x400C
56 * Special thanks to Makoto Iguchi <iguchi@tahoo.org> and Mr. Anonymous
57 * for analyzing GPIO of MPG160.
59 *****************************************************************************
61 * GPIO assignment of Avermedia M179 (per information direct from AVerMedia)
63 * bit 15 14 13 12 | 11 10 9 8 | 7 6 5 4 | 3 2 1 0
64 * OUTPUT IN0 AM0 IN1 AM1 AM2 IN2 BR0 BR1
67 * IN* : Input selection
71 * 1 0 0 TV Tuner Audio
77 * 0 0 0 TV Tuner Audio: L_OUT=(L+R)/2, R_OUT=SAP
78 * 0 0 1 TV Tuner Audio: L_OUT=R_OUT=SAP (SAP)
79 * 0 1 0 TV Tuner Audio: L_OUT=L, R_OUT=R (stereo)
80 * 0 1 1 TV Tuner Audio: mute
81 * 1 * * TV Tuner Audio: L_OUT=R_OUT=(L+R)/2 (mono)
83 * BR* : Audio Sample Rate (BR stands for bitrate for some reason)
89 * DM* : Detected tuner audio Mode
92 * Special thanks to AVerMedia Technologies, Inc. and Jiun-Kuei Jung at
93 * AVerMedia for providing the GPIO information used to add support
97 /********************* GPIO stuffs *********************/
100 #define IVTV_REG_GPIO_IN 0x9008
101 #define IVTV_REG_GPIO_OUT 0x900c
102 #define IVTV_REG_GPIO_DIR 0x9020
104 void ivtv_reset_ir_gpio(struct ivtv *itv)
108 if (itv->card->type != IVTV_CARD_PVR_150)
110 IVTV_DEBUG_INFO("Resetting PVR150 IR\n");
111 curout = read_reg(IVTV_REG_GPIO_OUT);
112 curdir = read_reg(IVTV_REG_GPIO_DIR);
114 write_reg(curdir, IVTV_REG_GPIO_DIR);
115 curout = (curout & ~0xF) | 1;
116 write_reg(curout, IVTV_REG_GPIO_OUT);
117 /* We could use something else for smaller time */
118 schedule_timeout_interruptible(msecs_to_jiffies(1));
120 write_reg(curout, IVTV_REG_GPIO_OUT);
122 write_reg(curdir, IVTV_REG_GPIO_DIR);
126 int ivtv_reset_tuner_gpio(enum v4l2_tuner_type mode, void *priv, int ptr)
129 struct ivtv *itv = (struct ivtv *) priv;
131 if (itv->card->type != IVTV_CARD_PG600V2 || itv->options.tuner != TUNER_XCEIVE_XC3028)
133 IVTV_INFO("Resetting tuner.\n");
134 curout = read_reg(IVTV_REG_GPIO_OUT);
135 curdir = read_reg(IVTV_REG_GPIO_DIR);
136 curdir |= (1 << 12); /* GPIO bit 12 */
138 curout &= ~(1 << 12);
139 write_reg(curout, IVTV_REG_GPIO_OUT);
140 schedule_timeout_interruptible(msecs_to_jiffies(1));
143 write_reg(curout, IVTV_REG_GPIO_OUT);
144 schedule_timeout_interruptible(msecs_to_jiffies(1));
150 void ivtv_gpio_init(struct ivtv *itv)
152 if (itv->card->gpio_init.direction == 0)
155 IVTV_DEBUG_INFO("GPIO initial dir: %08x out: %08x\n",
156 read_reg(IVTV_REG_GPIO_DIR), read_reg(IVTV_REG_GPIO_OUT));
158 /* init output data then direction */
159 write_reg(itv->card->gpio_init.initial_value, IVTV_REG_GPIO_OUT);
160 write_reg(itv->card->gpio_init.direction, IVTV_REG_GPIO_DIR);
163 static struct v4l2_queryctrl gpio_ctrl_mute = {
164 .id = V4L2_CID_AUDIO_MUTE,
165 .type = V4L2_CTRL_TYPE_BOOLEAN,
174 int ivtv_gpio(struct ivtv *itv, unsigned int command, void *arg)
176 struct v4l2_tuner *tuner = arg;
177 struct v4l2_control *ctrl = arg;
178 struct v4l2_routing *route = arg;
182 case VIDIOC_INT_AUDIO_CLOCK_FREQ:
183 mask = itv->card->gpio_audio_freq.mask;
184 switch (*(u32 *)arg) {
186 data = itv->card->gpio_audio_freq.f32000;
189 data = itv->card->gpio_audio_freq.f44100;
193 data = itv->card->gpio_audio_freq.f48000;
199 mask = itv->card->gpio_audio_detect.mask;
200 if (mask == 0 || (read_reg(IVTV_REG_GPIO_IN) & mask))
201 tuner->rxsubchans = V4L2_TUNER_MODE_STEREO |
202 V4L2_TUNER_MODE_LANG1 | V4L2_TUNER_MODE_LANG2;
204 tuner->rxsubchans = V4L2_TUNER_SUB_MONO;
208 mask = itv->card->gpio_audio_mode.mask;
209 switch (tuner->audmode) {
210 case V4L2_TUNER_MODE_LANG1:
211 data = itv->card->gpio_audio_mode.lang1;
213 case V4L2_TUNER_MODE_LANG2:
214 data = itv->card->gpio_audio_mode.lang2;
216 case V4L2_TUNER_MODE_MONO:
217 data = itv->card->gpio_audio_mode.mono;
219 case V4L2_TUNER_MODE_STEREO:
220 case V4L2_TUNER_MODE_LANG1_LANG2:
222 data = itv->card->gpio_audio_mode.stereo;
228 mask = itv->card->gpio_audio_input.mask;
229 data = itv->card->gpio_audio_input.radio;
233 mask = itv->card->gpio_audio_input.mask;
234 data = itv->card->gpio_audio_input.tuner;
237 case VIDIOC_INT_S_AUDIO_ROUTING:
238 if (route->input > 2)
240 mask = itv->card->gpio_audio_input.mask;
241 switch (route->input) {
243 data = itv->card->gpio_audio_input.tuner;
246 data = itv->card->gpio_audio_input.linein;
250 data = itv->card->gpio_audio_input.radio;
256 if (ctrl->id != V4L2_CID_AUDIO_MUTE)
258 mask = itv->card->gpio_audio_mute.mask;
259 data = itv->card->gpio_audio_mute.mute;
260 ctrl->value = (read_reg(IVTV_REG_GPIO_OUT) & mask) == data;
264 if (ctrl->id != V4L2_CID_AUDIO_MUTE)
266 mask = itv->card->gpio_audio_mute.mask;
267 data = ctrl->value ? itv->card->gpio_audio_mute.mute : 0;
270 case VIDIOC_QUERYCTRL:
272 struct v4l2_queryctrl *qc = arg;
274 if (qc->id != V4L2_CID_AUDIO_MUTE)
276 *qc = gpio_ctrl_mute;
280 case VIDIOC_LOG_STATUS:
281 IVTV_INFO("GPIO status: DIR=0x%04x OUT=0x%04x IN=0x%04x\n",
282 read_reg(IVTV_REG_GPIO_DIR), read_reg(IVTV_REG_GPIO_OUT),
283 read_reg(IVTV_REG_GPIO_IN));
286 case VIDIOC_INT_S_VIDEO_ROUTING:
287 if (route->input > 2) /* 0:Tuner 1:Composite 2:S-Video */
289 mask = itv->card->gpio_video_input.mask;
290 if (route->input == 0)
291 data = itv->card->gpio_video_input.tuner;
292 else if (route->input == 1)
293 data = itv->card->gpio_video_input.composite;
295 data = itv->card->gpio_video_input.svideo;
302 write_reg((read_reg(IVTV_REG_GPIO_OUT) & ~mask) | (data & mask), IVTV_REG_GPIO_OUT);