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  • only in /netgear-R7000-V1.0.7.12_1.2.5/components/opensource/linux/linux-2.6.36/drivers/media/video/au0828/
1/*
2 *  Driver for the Auvitek USB bridge
3 *
4 *  Copyright (c) 2008 Steven Toth <stoth@linuxtv.org>
5 *
6 *  This program is free software; you can redistribute it and/or modify
7 *  it under the terms of the GNU General Public License as published by
8 *  the Free Software Foundation; either version 2 of the License, or
9 *  (at your option) any later version.
10 *
11 *  This program is distributed in the hope that it will be useful,
12 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
13 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
14 *
15 *  GNU General Public License for more details.
16 *
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., 675 Mass Ave, Cambridge, MA 02139, USA.
20 */
21
22#include "au0828.h"
23#include "au0828-cards.h"
24#include "au8522.h"
25#include "media/tuner.h"
26#include "media/v4l2-common.h"
27
28void hvr950q_cs5340_audio(void *priv, int enable)
29{
30	/* Because the HVR-950q shares an i2s bus between the cs5340 and the
31	   au8522, we need to hold cs5340 in reset when using the au8522 */
32	struct au0828_dev *dev = priv;
33	if (enable == 1)
34		au0828_set(dev, REG_000, 0x10);
35	else
36		au0828_clear(dev, REG_000, 0x10);
37}
38
39struct au0828_board au0828_boards[] = {
40	[AU0828_BOARD_UNKNOWN] = {
41		.name	= "Unknown board",
42		.tuner_type = UNSET,
43		.tuner_addr = ADDR_UNSET,
44	},
45	[AU0828_BOARD_HAUPPAUGE_HVR850] = {
46		.name	= "Hauppauge HVR850",
47		.tuner_type = TUNER_XC5000,
48		.tuner_addr = 0x61,
49		.i2c_clk_divider = AU0828_I2C_CLK_30KHZ,
50		.input = {
51			{
52				.type = AU0828_VMUX_TELEVISION,
53				.vmux = AU8522_COMPOSITE_CH4_SIF,
54				.amux = AU8522_AUDIO_SIF,
55			},
56			{
57				.type = AU0828_VMUX_COMPOSITE,
58				.vmux = AU8522_COMPOSITE_CH1,
59				.amux = AU8522_AUDIO_NONE,
60				.audio_setup = hvr950q_cs5340_audio,
61			},
62			{
63				.type = AU0828_VMUX_SVIDEO,
64				.vmux = AU8522_SVIDEO_CH13,
65				.amux = AU8522_AUDIO_NONE,
66				.audio_setup = hvr950q_cs5340_audio,
67			},
68		},
69	},
70	[AU0828_BOARD_HAUPPAUGE_HVR950Q] = {
71		.name	= "Hauppauge HVR950Q",
72		.tuner_type = TUNER_XC5000,
73		.tuner_addr = 0x61,
74		/* The au0828 hardware i2c implementation does not properly
75		   support the xc5000's i2c clock stretching.  So we need to
76		   lower the clock frequency enough where the 15us clock
77		   stretch fits inside of a normal clock cycle, or else the
78		   au0828 fails to set the STOP bit.  A 30 KHz clock puts the
79		   clock pulse width at 18us */
80		.i2c_clk_divider = AU0828_I2C_CLK_30KHZ,
81		.input = {
82			{
83				.type = AU0828_VMUX_TELEVISION,
84				.vmux = AU8522_COMPOSITE_CH4_SIF,
85				.amux = AU8522_AUDIO_SIF,
86			},
87			{
88				.type = AU0828_VMUX_COMPOSITE,
89				.vmux = AU8522_COMPOSITE_CH1,
90				.amux = AU8522_AUDIO_NONE,
91				.audio_setup = hvr950q_cs5340_audio,
92			},
93			{
94				.type = AU0828_VMUX_SVIDEO,
95				.vmux = AU8522_SVIDEO_CH13,
96				.amux = AU8522_AUDIO_NONE,
97				.audio_setup = hvr950q_cs5340_audio,
98			},
99		},
100	},
101	[AU0828_BOARD_HAUPPAUGE_HVR950Q_MXL] = {
102		.name	= "Hauppauge HVR950Q rev xxF8",
103		.tuner_type = UNSET,
104		.tuner_addr = ADDR_UNSET,
105		.i2c_clk_divider = AU0828_I2C_CLK_250KHZ,
106	},
107	[AU0828_BOARD_DVICO_FUSIONHDTV7] = {
108		.name	= "DViCO FusionHDTV USB",
109		.tuner_type = UNSET,
110		.tuner_addr = ADDR_UNSET,
111		.i2c_clk_divider = AU0828_I2C_CLK_250KHZ,
112	},
113	[AU0828_BOARD_HAUPPAUGE_WOODBURY] = {
114		.name = "Hauppauge Woodbury",
115		.tuner_type = UNSET,
116		.tuner_addr = ADDR_UNSET,
117		.i2c_clk_divider = AU0828_I2C_CLK_250KHZ,
118	},
119};
120
121/* Tuner callback function for au0828 boards. Currently only needed
122 * for HVR1500Q, which has an xc5000 tuner.
123 */
124int au0828_tuner_callback(void *priv, int component, int command, int arg)
125{
126	struct au0828_dev *dev = priv;
127
128	dprintk(1, "%s()\n", __func__);
129
130	switch (dev->boardnr) {
131	case AU0828_BOARD_HAUPPAUGE_HVR850:
132	case AU0828_BOARD_HAUPPAUGE_HVR950Q:
133	case AU0828_BOARD_HAUPPAUGE_HVR950Q_MXL:
134	case AU0828_BOARD_DVICO_FUSIONHDTV7:
135		if (command == 0) {
136			/* Tuner Reset Command from xc5000 */
137			/* Drive the tuner into reset and out */
138			au0828_clear(dev, REG_001, 2);
139			mdelay(10);
140			au0828_set(dev, REG_001, 2);
141			mdelay(10);
142			return 0;
143		} else {
144			printk(KERN_ERR
145				"%s(): Unknown command.\n", __func__);
146			return -EINVAL;
147		}
148		break;
149	}
150
151	return 0; /* Should never be here */
152}
153
154static void hauppauge_eeprom(struct au0828_dev *dev, u8 *eeprom_data)
155{
156	struct tveeprom tv;
157
158	tveeprom_hauppauge_analog(&dev->i2c_client, &tv, eeprom_data);
159	dev->board.tuner_type = tv.tuner_type;
160
161	/* Make sure we support the board model */
162	switch (tv.model) {
163	case 72000: /* WinTV-HVR950q (Retail, IR, ATSC/QAM */
164	case 72001: /* WinTV-HVR950q (Retail, IR, ATSC/QAM and analog video */
165	case 72211: /* WinTV-HVR950q (OEM, IR, ATSC/QAM and analog video */
166	case 72221: /* WinTV-HVR950q (OEM, IR, ATSC/QAM and analog video */
167	case 72231: /* WinTV-HVR950q (OEM, IR, ATSC/QAM and analog video */
168	case 72241: /* WinTV-HVR950q (OEM, No IR, ATSC/QAM and analog video */
169	case 72251: /* WinTV-HVR950q (Retail, IR, ATSC/QAM and analog video */
170	case 72301: /* WinTV-HVR850 (Retail, IR, ATSC and analog video */
171	case 72500: /* WinTV-HVR950q (OEM, No IR, ATSC/QAM */
172		break;
173	default:
174		printk(KERN_WARNING "%s: warning: "
175		       "unknown hauppauge model #%d\n", __func__, tv.model);
176		break;
177	}
178
179	printk(KERN_INFO "%s: hauppauge eeprom: model=%d\n",
180	       __func__, tv.model);
181}
182
183void au0828_card_setup(struct au0828_dev *dev)
184{
185	static u8 eeprom[256];
186	struct tuner_setup tun_setup;
187	struct v4l2_subdev *sd;
188	unsigned int mode_mask = T_ANALOG_TV |
189				 T_DIGITAL_TV;
190
191	dprintk(1, "%s()\n", __func__);
192
193	memcpy(&dev->board, &au0828_boards[dev->boardnr], sizeof(dev->board));
194
195	if (dev->i2c_rc == 0) {
196		dev->i2c_client.addr = 0xa0 >> 1;
197		tveeprom_read(&dev->i2c_client, eeprom, sizeof(eeprom));
198	}
199
200	switch (dev->boardnr) {
201	case AU0828_BOARD_HAUPPAUGE_HVR850:
202	case AU0828_BOARD_HAUPPAUGE_HVR950Q:
203	case AU0828_BOARD_HAUPPAUGE_HVR950Q_MXL:
204	case AU0828_BOARD_HAUPPAUGE_WOODBURY:
205		if (dev->i2c_rc == 0)
206			hauppauge_eeprom(dev, eeprom+0xa0);
207		break;
208	}
209
210	if (AUVI_INPUT(0).type != AU0828_VMUX_UNDEFINED) {
211		/* Load the analog demodulator driver (note this would need to
212		   be abstracted out if we ever need to support a different
213		   demod) */
214		sd = v4l2_i2c_new_subdev(&dev->v4l2_dev, &dev->i2c_adap,
215				"au8522", "au8522", 0x8e >> 1, NULL);
216		if (sd == NULL)
217			printk(KERN_ERR "analog subdev registration failed\n");
218	}
219
220	/* Setup tuners */
221	if (dev->board.tuner_type != TUNER_ABSENT) {
222		/* Load the tuner module, which does the attach */
223		sd = v4l2_i2c_new_subdev(&dev->v4l2_dev, &dev->i2c_adap,
224				"tuner", "tuner", dev->board.tuner_addr, NULL);
225		if (sd == NULL)
226			printk(KERN_ERR "tuner subdev registration fail\n");
227
228		tun_setup.mode_mask      = mode_mask;
229		tun_setup.type           = dev->board.tuner_type;
230		tun_setup.addr           = dev->board.tuner_addr;
231		tun_setup.tuner_callback = au0828_tuner_callback;
232		v4l2_device_call_all(&dev->v4l2_dev, 0, tuner, s_type_addr,
233				     &tun_setup);
234	}
235}
236
237/*
238 * The bridge has between 8 and 12 gpios.
239 * Regs 1 and 0 deal with output enables.
240 * Regs 3 and 2 deal with direction.
241 */
242void au0828_gpio_setup(struct au0828_dev *dev)
243{
244	dprintk(1, "%s()\n", __func__);
245
246	switch (dev->boardnr) {
247	case AU0828_BOARD_HAUPPAUGE_HVR850:
248	case AU0828_BOARD_HAUPPAUGE_HVR950Q:
249	case AU0828_BOARD_HAUPPAUGE_HVR950Q_MXL:
250	case AU0828_BOARD_HAUPPAUGE_WOODBURY:
251		/* GPIO's
252		 * 4 - CS5340
253		 * 5 - AU8522 Demodulator
254		 * 6 - eeprom W/P
255		 * 7 - power supply
256		 * 9 - XC5000 Tuner
257		 */
258
259		/* Into reset */
260		au0828_write(dev, REG_003, 0x02);
261		au0828_write(dev, REG_002, 0x80 | 0x20 | 0x10);
262		au0828_write(dev, REG_001, 0x0);
263		au0828_write(dev, REG_000, 0x0);
264		msleep(100);
265
266		/* Out of reset (leave the cs5340 in reset until needed) */
267		au0828_write(dev, REG_003, 0x02);
268		au0828_write(dev, REG_001, 0x02);
269		au0828_write(dev, REG_002, 0x80 | 0x20 | 0x10);
270		au0828_write(dev, REG_000, 0x80 | 0x40 | 0x20);
271
272		msleep(250);
273		break;
274	case AU0828_BOARD_DVICO_FUSIONHDTV7:
275		/* GPIO's
276		 * 6 - ?
277		 * 8 - AU8522 Demodulator
278		 * 9 - XC5000 Tuner
279		 */
280
281		/* Into reset */
282		au0828_write(dev, REG_003, 0x02);
283		au0828_write(dev, REG_002, 0xa0);
284		au0828_write(dev, REG_001, 0x0);
285		au0828_write(dev, REG_000, 0x0);
286		msleep(100);
287
288		/* Out of reset */
289		au0828_write(dev, REG_003, 0x02);
290		au0828_write(dev, REG_002, 0xa0);
291		au0828_write(dev, REG_001, 0x02);
292		au0828_write(dev, REG_000, 0xa0);
293		msleep(250);
294		break;
295	}
296}
297
298/* table of devices that work with this driver */
299struct usb_device_id au0828_usb_id_table[] = {
300	{ USB_DEVICE(0x2040, 0x7200),
301		.driver_info = AU0828_BOARD_HAUPPAUGE_HVR950Q },
302	{ USB_DEVICE(0x2040, 0x7240),
303		.driver_info = AU0828_BOARD_HAUPPAUGE_HVR850 },
304	{ USB_DEVICE(0x0fe9, 0xd620),
305		.driver_info = AU0828_BOARD_DVICO_FUSIONHDTV7 },
306	{ USB_DEVICE(0x2040, 0x7210),
307		.driver_info = AU0828_BOARD_HAUPPAUGE_HVR950Q },
308	{ USB_DEVICE(0x2040, 0x7217),
309		.driver_info = AU0828_BOARD_HAUPPAUGE_HVR950Q },
310	{ USB_DEVICE(0x2040, 0x721b),
311		.driver_info = AU0828_BOARD_HAUPPAUGE_HVR950Q },
312	{ USB_DEVICE(0x2040, 0x721e),
313		.driver_info = AU0828_BOARD_HAUPPAUGE_HVR950Q },
314	{ USB_DEVICE(0x2040, 0x721f),
315		.driver_info = AU0828_BOARD_HAUPPAUGE_HVR950Q },
316	{ USB_DEVICE(0x2040, 0x7280),
317		.driver_info = AU0828_BOARD_HAUPPAUGE_HVR950Q },
318	{ USB_DEVICE(0x0fd9, 0x0008),
319		.driver_info = AU0828_BOARD_HAUPPAUGE_HVR950Q },
320	{ USB_DEVICE(0x2040, 0x7201),
321		.driver_info = AU0828_BOARD_HAUPPAUGE_HVR950Q_MXL },
322	{ USB_DEVICE(0x2040, 0x7211),
323		.driver_info = AU0828_BOARD_HAUPPAUGE_HVR950Q_MXL },
324	{ USB_DEVICE(0x2040, 0x7281),
325		.driver_info = AU0828_BOARD_HAUPPAUGE_HVR950Q_MXL },
326	{ USB_DEVICE(0x2040, 0x8200),
327		.driver_info = AU0828_BOARD_HAUPPAUGE_WOODBURY },
328	{ },
329};
330
331MODULE_DEVICE_TABLE(usb, au0828_usb_id_table);
332