[PATCH] v4l: (946) adds support for cx25840 video decoder
Adds support for cx25840 video decoder.
Driver authors: Hans Verkuil, Chris Kennedy, Tyler Trafford, Ulf Eklund.
Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Chris Kennedy <c@groovy.org>
Signed-off-by: Tyler Trafford <tatrafford@comcast.net>
Thanks-to: Ulf Eklund <ivtv@eklund.to>.
Signed-off-by: Mauro Carvalho Chehab <mchehab@brturbo.com.br>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
diff --git a/drivers/media/video/cx25840/cx25840-core.c b/drivers/media/video/cx25840/cx25840-core.c
new file mode 100644
index 0000000..805273e
--- /dev/null
+++ b/drivers/media/video/cx25840/cx25840-core.c
@@ -0,0 +1,1024 @@
+/* cx25840 - Conexant CX25840 audio/video decoder driver
+ *
+ * Copyright (C) 2004 Ulf Eklund
+ *
+ * Based on the saa7115 driver and on the first verison of Chris Kennedy's
+ * cx25840 driver.
+ *
+ * Changes by Tyler Trafford <tatrafford@comcast.net>
+ * - cleanup/rewrite for V4L2 API (2005)
+ *
+ * VBI support by Hans Verkuil <hverkuil@xs4all.nl>.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+ */
+
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/slab.h>
+#include <linux/videodev2.h>
+#include <linux/i2c.h>
+#include <media/audiochip.h>
+#include <media/i2c-compat.h>
+#include <media/v4l2-common.h>
+
+#include "cx25840.h"
+
+MODULE_DESCRIPTION("Conexant CX25840 audio/video decoder driver");
+MODULE_AUTHOR("Ulf Eklund <ivtv@eklund.to>");
+MODULE_AUTHOR("Chris Kennedy <c@groovy.org>");
+MODULE_AUTHOR("Hans Verkuil <hverkuil@xs4all.nl>");
+MODULE_AUTHOR("Tyler Trafford <tatrafford@comcast.net>");
+MODULE_LICENSE("GPL");
+
+static unsigned short normal_i2c[] = { 0x88 >> 1, I2C_CLIENT_END };
+
+
+int cx25840_debug = 0;
+
+module_param(cx25840_debug, bool, 0644);
+
+MODULE_PARM_DESC(cx25840_debug, "Debugging messages [0=Off (default) 1=On]");
+
+I2C_CLIENT_INSMOD;
+
+/* ----------------------------------------------------------------------- */
+
+int cx25840_write(struct i2c_client *client, u16 addr, u8 value)
+{
+ u8 buffer[3];
+ buffer[0] = addr >> 8;
+ buffer[1] = addr & 0xff;
+ buffer[2] = value;
+ return i2c_master_send(client, buffer, 3);
+}
+
+int cx25840_write4(struct i2c_client *client, u16 addr, u32 value)
+{
+ u8 buffer[6];
+ buffer[0] = addr >> 8;
+ buffer[1] = addr & 0xff;
+ buffer[2] = value >> 24;
+ buffer[3] = (value >> 16) & 0xff;
+ buffer[4] = (value >> 8) & 0xff;
+ buffer[5] = value & 0xff;
+ return i2c_master_send(client, buffer, 6);
+}
+
+u8 cx25840_read(struct i2c_client * client, u16 addr)
+{
+ u8 buffer[2];
+ buffer[0] = addr >> 8;
+ buffer[1] = addr & 0xff;
+
+ if (i2c_master_send(client, buffer, 2) < 2)
+ return 0;
+
+ if (i2c_master_recv(client, buffer, 1) < 1)
+ return 0;
+
+ return buffer[0];
+}
+
+u32 cx25840_read4(struct i2c_client * client, u16 addr)
+{
+ u8 buffer[4];
+ buffer[0] = addr >> 8;
+ buffer[1] = addr & 0xff;
+
+ if (i2c_master_send(client, buffer, 2) < 2)
+ return 0;
+
+ if (i2c_master_recv(client, buffer, 4) < 4)
+ return 0;
+
+ return (buffer[0] << 24) | (buffer[1] << 16) |
+ (buffer[2] << 8) | buffer[3];
+}
+
+int cx25840_and_or(struct i2c_client *client, u16 addr, u8 and_mask,
+ u8 or_value)
+{
+ return cx25840_write(client, addr,
+ (cx25840_read(client, addr) & and_mask) |
+ or_value);
+}
+
+/* ----------------------------------------------------------------------- */
+
+static int set_input(struct i2c_client *, enum cx25840_input);
+static void input_change(struct i2c_client *);
+static void log_status(struct i2c_client *client);
+
+/* ----------------------------------------------------------------------- */
+
+static inline void init_dll1(struct i2c_client *client)
+{
+ /* This is the Hauppauge sequence used to
+ * initialize the Delay Lock Loop 1 (ADC DLL). */
+ cx25840_write(client, 0x159, 0x23);
+ cx25840_write(client, 0x15a, 0x87);
+ cx25840_write(client, 0x15b, 0x06);
+ cx25840_write(client, 0x159, 0xe1);
+ cx25840_write(client, 0x15a, 0x86);
+ cx25840_write(client, 0x159, 0xe0);
+ cx25840_write(client, 0x159, 0xe1);
+ cx25840_write(client, 0x15b, 0x10);
+}
+
+static inline void init_dll2(struct i2c_client *client)
+{
+ /* This is the Hauppauge sequence used to
+ * initialize the Delay Lock Loop 2 (ADC DLL). */
+ cx25840_write(client, 0x15d, 0xe3);
+ cx25840_write(client, 0x15e, 0x86);
+ cx25840_write(client, 0x15f, 0x06);
+ cx25840_write(client, 0x15d, 0xe1);
+ cx25840_write(client, 0x15d, 0xe0);
+ cx25840_write(client, 0x15d, 0xe1);
+}
+
+static void cx25840_initialize(struct i2c_client *client, int loadfw)
+{
+ struct cx25840_state *state = i2c_get_clientdata(client);
+
+ /* datasheet startup in numbered steps, refer to page 3-77 */
+ /* 2. */
+ cx25840_and_or(client, 0x803, ~0x10, 0x00);
+ /* The default of this register should be 4, but I get 0 instead.
+ * Set this register to 4 manually. */
+ cx25840_write(client, 0x000, 0x04);
+ /* 3. */
+ init_dll1(client);
+ init_dll2(client);
+ cx25840_write(client, 0x136, 0x0a);
+ /* 4. */
+ cx25840_write(client, 0x13c, 0x01);
+ cx25840_write(client, 0x13c, 0x00);
+ /* 5. */
+ if (loadfw)
+ cx25840_loadfw(client);
+ /* 6. */
+ cx25840_write(client, 0x115, 0x8c);
+ cx25840_write(client, 0x116, 0x07);
+ cx25840_write(client, 0x118, 0x02);
+ /* 7. */
+ cx25840_write(client, 0x4a5, 0x80);
+ cx25840_write(client, 0x4a5, 0x00);
+ cx25840_write(client, 0x402, 0x00);
+ /* 8. */
+ cx25840_write(client, 0x401, 0x18);
+ cx25840_write(client, 0x4a2, 0x10);
+ cx25840_write(client, 0x402, 0x04);
+ /* 10. */
+ cx25840_write(client, 0x8d3, 0x1f);
+ cx25840_write(client, 0x8e3, 0x03);
+
+ cx25840_vbi_setup(client);
+
+ /* trial and error says these are needed to get audio */
+ cx25840_write(client, 0x914, 0xa0);
+ cx25840_write(client, 0x918, 0xa0);
+ cx25840_write(client, 0x919, 0x01);
+
+ /* stereo prefered */
+ cx25840_write(client, 0x809, 0x04);
+ /* AC97 shift */
+ cx25840_write(client, 0x8cf, 0x0f);
+
+ /* (re)set video input */
+ set_input(client, state->input);
+ /* (re)set audio input */
+ cx25840_audio(client, AUDC_SET_INPUT, &state->audio_input);
+
+ /* start microcontroller */
+ cx25840_and_or(client, 0x803, ~0x10, 0x10);
+}
+
+/* ----------------------------------------------------------------------- */
+
+static void input_change(struct i2c_client *client)
+{
+ v4l2_std_id std = cx25840_get_v4lstd(client);
+
+ if (std & V4L2_STD_PAL) {
+ /* Follow tuner change procedure for PAL */
+ cx25840_write(client, 0x808, 0xff);
+ cx25840_write(client, 0x80b, 0x10);
+ } else if (std & V4L2_STD_SECAM) {
+ /* Select autodetect for SECAM */
+ cx25840_write(client, 0x808, 0xff);
+ cx25840_write(client, 0x80b, 0x10);
+ } else if (std & V4L2_STD_NTSC) {
+ /* NTSC */
+ cx25840_write(client, 0x808, 0xf6);
+ cx25840_write(client, 0x80b, 0x00);
+ }
+
+ if (cx25840_read(client, 0x803) & 0x10) {
+ /* restart audio decoder microcontroller */
+ cx25840_and_or(client, 0x803, ~0x10, 0x00);
+ cx25840_and_or(client, 0x803, ~0x10, 0x10);
+ }
+}
+
+static int set_input(struct i2c_client *client, enum cx25840_input input)
+{
+ struct cx25840_state *state = i2c_get_clientdata(client);
+
+ cx25840_dbg("decoder set input (%d)\n", input);
+
+ switch (input) {
+ case CX25840_TUNER:
+ cx25840_dbg("now setting Tuner input\n");
+
+ if (state->cardtype == CARDTYPE_PVR150) {
+ /* CH_SEL_ADC2=1 */
+ cx25840_and_or(client, 0x102, ~0x2, 0x02);
+ }
+
+ /* Video Input Control */
+ if (state->cardtype == CARDTYPE_PG600) {
+ cx25840_write(client, 0x103, 0x11);
+ } else {
+ cx25840_write(client, 0x103, 0x46);
+ }
+
+ /* INPUT_MODE=0 */
+ cx25840_and_or(client, 0x401, ~0x6, 0x00);
+ break;
+
+ case CX25840_COMPOSITE0:
+ case CX25840_COMPOSITE1:
+ cx25840_dbg("now setting Composite input\n");
+
+ /* Video Input Control */
+ if (state->cardtype == CARDTYPE_PG600) {
+ cx25840_write(client, 0x103, 0x00);
+ } else {
+ cx25840_write(client, 0x103, 0x02);
+ }
+
+ /* INPUT_MODE=0 */
+ cx25840_and_or(client, 0x401, ~0x6, 0x00);
+ break;
+
+ case CX25840_SVIDEO0:
+ case CX25840_SVIDEO1:
+ cx25840_dbg("now setting S-Video input\n");
+
+ /* CH_SEL_ADC2=0 */
+ cx25840_and_or(client, 0x102, ~0x2, 0x00);
+
+ /* Video Input Control */
+ if (state->cardtype == CARDTYPE_PG600) {
+ cx25840_write(client, 0x103, 0x02);
+ } else {
+ cx25840_write(client, 0x103, 0x10);
+ }
+
+ /* INPUT_MODE=1 */
+ cx25840_and_or(client, 0x401, ~0x6, 0x02);
+ break;
+
+ default:
+ cx25840_err("%d is not a valid input!\n", input);
+ return -EINVAL;
+ }
+
+ state->input = input;
+ input_change(client);
+ return 0;
+}
+
+/* ----------------------------------------------------------------------- */
+
+static int set_v4lstd(struct i2c_client *client, v4l2_std_id std)
+{
+ u8 fmt;
+
+ switch (std) {
+ /* zero is autodetect */
+ case 0: fmt = 0x0; break;
+ /* default ntsc to ntsc-m */
+ case V4L2_STD_NTSC:
+ case V4L2_STD_NTSC_M: fmt = 0x1; break;
+ case V4L2_STD_NTSC_M_JP: fmt = 0x2; break;
+ case V4L2_STD_NTSC_443: fmt = 0x3; break;
+ case V4L2_STD_PAL: fmt = 0x4; break;
+ case V4L2_STD_PAL_M: fmt = 0x5; break;
+ case V4L2_STD_PAL_N: fmt = 0x6; break;
+ case V4L2_STD_PAL_Nc: fmt = 0x7; break;
+ case V4L2_STD_PAL_60: fmt = 0x8; break;
+ case V4L2_STD_SECAM: fmt = 0xc; break;
+ default:
+ return -ERANGE;
+ }
+
+ cx25840_and_or(client, 0x400, ~0xf, fmt);
+ cx25840_vbi_setup(client);
+ return 0;
+}
+
+v4l2_std_id cx25840_get_v4lstd(struct i2c_client * client)
+{
+ /* check VID_FMT_SEL first */
+ u8 fmt = cx25840_read(client, 0x400) & 0xf;
+
+ if (!fmt) {
+ /* check AFD_FMT_STAT if set to autodetect */
+ fmt = cx25840_read(client, 0x40d) & 0xf;
+ }
+
+ switch (fmt) {
+ case 0x1: return V4L2_STD_NTSC_M;
+ case 0x2: return V4L2_STD_NTSC_M_JP;
+ case 0x3: return V4L2_STD_NTSC_443;
+ case 0x4: return V4L2_STD_PAL;
+ case 0x5: return V4L2_STD_PAL_M;
+ case 0x6: return V4L2_STD_PAL_N;
+ case 0x7: return V4L2_STD_PAL_Nc;
+ case 0x8: return V4L2_STD_PAL_60;
+ case 0xc: return V4L2_STD_SECAM;
+ default: return V4L2_STD_UNKNOWN;
+ }
+}
+
+/* ----------------------------------------------------------------------- */
+
+static int set_v4lctrl(struct i2c_client *client, struct v4l2_control *ctrl)
+{
+ struct cx25840_state *state = i2c_get_clientdata(client);
+
+ switch (ctrl->id) {
+ case CX25840_CID_CARDTYPE:
+ switch (ctrl->value) {
+ case CARDTYPE_PVR150:
+ case CARDTYPE_PG600:
+ state->cardtype = ctrl->value;
+ break;
+ default:
+ return -ERANGE;
+ }
+
+ set_input(client, state->input);
+ break;
+
+ case V4L2_CID_BRIGHTNESS:
+ if (ctrl->value < 0 || ctrl->value > 255) {
+ cx25840_err("invalid brightness setting %d\n",
+ ctrl->value);
+ return -ERANGE;
+ }
+
+ cx25840_write(client, 0x414, ctrl->value - 128);
+ break;
+
+ case V4L2_CID_CONTRAST:
+ if (ctrl->value < 0 || ctrl->value > 127) {
+ cx25840_err("invalid contrast setting %d\n",
+ ctrl->value);
+ return -ERANGE;
+ }
+
+ cx25840_write(client, 0x415, ctrl->value << 1);
+ break;
+
+ case V4L2_CID_SATURATION:
+ if (ctrl->value < 0 || ctrl->value > 127) {
+ cx25840_err("invalid saturation setting %d\n",
+ ctrl->value);
+ return -ERANGE;
+ }
+
+ cx25840_write(client, 0x420, ctrl->value << 1);
+ cx25840_write(client, 0x421, ctrl->value << 1);
+ break;
+
+ case V4L2_CID_HUE:
+ if (ctrl->value < -127 || ctrl->value > 127) {
+ cx25840_err("invalid hue setting %d\n", ctrl->value);
+ return -ERANGE;
+ }
+
+ cx25840_write(client, 0x422, ctrl->value);
+ break;
+
+ case V4L2_CID_AUDIO_VOLUME:
+ case V4L2_CID_AUDIO_BASS:
+ case V4L2_CID_AUDIO_TREBLE:
+ case V4L2_CID_AUDIO_BALANCE:
+ case V4L2_CID_AUDIO_MUTE:
+ return cx25840_audio(client, VIDIOC_S_CTRL, ctrl);
+ }
+
+ return 0;
+}
+
+static int get_v4lctrl(struct i2c_client *client, struct v4l2_control *ctrl)
+{
+ struct cx25840_state *state = i2c_get_clientdata(client);
+
+ switch (ctrl->id) {
+ case CX25840_CID_CARDTYPE:
+ ctrl->value = state->cardtype;
+ break;
+ case V4L2_CID_BRIGHTNESS:
+ ctrl->value = cx25840_read(client, 0x414) + 128;
+ break;
+ case V4L2_CID_CONTRAST:
+ ctrl->value = cx25840_read(client, 0x415) >> 1;
+ break;
+ case V4L2_CID_SATURATION:
+ ctrl->value = cx25840_read(client, 0x420) >> 1;
+ break;
+ case V4L2_CID_HUE:
+ ctrl->value = cx25840_read(client, 0x422);
+ break;
+ case V4L2_CID_AUDIO_VOLUME:
+ case V4L2_CID_AUDIO_BASS:
+ case V4L2_CID_AUDIO_TREBLE:
+ case V4L2_CID_AUDIO_BALANCE:
+ case V4L2_CID_AUDIO_MUTE:
+ return cx25840_audio(client, VIDIOC_G_CTRL, ctrl);
+ default:
+ return -EINVAL;
+ }
+
+ return 0;
+}
+
+/* ----------------------------------------------------------------------- */
+
+static int get_v4lfmt(struct i2c_client *client, struct v4l2_format *fmt)
+{
+ switch (fmt->type) {
+ case V4L2_BUF_TYPE_SLICED_VBI_CAPTURE:
+ return cx25840_vbi(client, VIDIOC_G_FMT, fmt);
+ default:
+ return -EINVAL;
+ }
+
+ return 0;
+}
+
+static int set_v4lfmt(struct i2c_client *client, struct v4l2_format *fmt)
+{
+ struct v4l2_pix_format *pix;
+ int HSC, VSC, Vsrc, Hsrc, filter, Vlines;
+ int is_pal = !(cx25840_get_v4lstd(client) & V4L2_STD_NTSC);
+
+ switch (fmt->type) {
+ case V4L2_BUF_TYPE_VIDEO_CAPTURE:
+ pix = &(fmt->fmt.pix);
+
+ Vsrc = (cx25840_read(client, 0x476) & 0x3f) << 4;
+ Vsrc |= (cx25840_read(client, 0x475) & 0xf0) >> 4;
+
+ Hsrc = (cx25840_read(client, 0x472) & 0x3f) << 4;
+ Hsrc |= (cx25840_read(client, 0x471) & 0xf0) >> 4;
+
+ Vlines = pix->height + (is_pal ? 4 : 7);
+
+ if ((pix->width * 16 < Hsrc) || (Hsrc < pix->width) ||
+ (Vlines * 8 < Vsrc) || (Vsrc < Vlines)) {
+ cx25840_err("%dx%d is not a valid size!\n",
+ pix->width, pix->height);
+ return -ERANGE;
+ }
+
+ HSC = (Hsrc * (1 << 20)) / pix->width - (1 << 20);
+ VSC = (1 << 16) - (Vsrc * (1 << 9) / Vlines - (1 << 9));
+ VSC &= 0x1fff;
+
+ if (pix->width >= 385)
+ filter = 0;
+ else if (pix->width > 192)
+ filter = 1;
+ else if (pix->width > 96)
+ filter = 2;
+ else
+ filter = 3;
+
+ cx25840_dbg("decoder set size %dx%d -> scale %ux%u\n",
+ pix->width, pix->height, HSC, VSC);
+
+ /* HSCALE=HSC */
+ cx25840_write(client, 0x418, HSC & 0xff);
+ cx25840_write(client, 0x419, (HSC >> 8) & 0xff);
+ cx25840_write(client, 0x41a, HSC >> 16);
+ /* VSCALE=VSC */
+ cx25840_write(client, 0x41c, VSC & 0xff);
+ cx25840_write(client, 0x41d, VSC >> 8);
+ /* VS_INTRLACE=1 VFILT=filter */
+ cx25840_write(client, 0x41e, 0x8 | filter);
+ break;
+
+ case V4L2_BUF_TYPE_SLICED_VBI_CAPTURE:
+ return cx25840_vbi(client, VIDIOC_S_FMT, fmt);
+
+ case V4L2_BUF_TYPE_VBI_CAPTURE:
+ return cx25840_vbi(client, VIDIOC_S_FMT, fmt);
+
+ default:
+ return -EINVAL;
+ }
+
+ return 0;
+}
+
+/* ----------------------------------------------------------------------- */
+
+static int cx25840_command(struct i2c_client *client, unsigned int cmd,
+ void *arg)
+{
+ struct cx25840_state *state = i2c_get_clientdata(client);
+ struct v4l2_tuner *vt = arg;
+ int result = 0;
+
+ switch (cmd) {
+ case 0:
+ break;
+
+#ifdef CONFIG_VIDEO_ADV_DEBUG
+ /* ioctls to allow direct access to the
+ * cx25840 registers for testing */
+ case VIDIOC_INT_G_REGISTER:
+ {
+ struct v4l2_register *reg = arg;
+
+ if (reg->i2c_id != I2C_DRIVERID_CX25840)
+ return -EINVAL;
+ reg->val = cx25840_read(client, reg->reg & 0x0fff);
+ break;
+ }
+
+ case VIDIOC_INT_S_REGISTER:
+ {
+ struct v4l2_register *reg = arg;
+
+ if (reg->i2c_id != I2C_DRIVERID_CX25840)
+ return -EINVAL;
+ if (!capable(CAP_SYS_ADMIN))
+ return -EPERM;
+ cx25840_write(client, reg->reg & 0x0fff, reg->val & 0xff);
+ break;
+ }
+#endif
+
+ case VIDIOC_INT_DECODE_VBI_LINE:
+ return cx25840_vbi(client, cmd, arg);
+
+ case VIDIOC_INT_AUDIO_CLOCK_FREQ:
+ case AUDC_SET_INPUT:
+ result = cx25840_audio(client, cmd, arg);
+ break;
+
+ case VIDIOC_STREAMON:
+ cx25840_dbg("enable output\n");
+ cx25840_write(client, 0x115, 0x8c);
+ cx25840_write(client, 0x116, 0x07);
+ break;
+
+ case VIDIOC_STREAMOFF:
+ cx25840_dbg("disable output\n");
+ cx25840_write(client, 0x115, 0x00);
+ cx25840_write(client, 0x116, 0x00);
+ break;
+
+ case VIDIOC_LOG_STATUS:
+ log_status(client);
+ break;
+
+ case VIDIOC_G_CTRL:
+ result = get_v4lctrl(client, (struct v4l2_control *)arg);
+ break;
+
+ case VIDIOC_S_CTRL:
+ result = set_v4lctrl(client, (struct v4l2_control *)arg);
+ break;
+
+ case VIDIOC_G_STD:
+ *(v4l2_std_id *)arg = cx25840_get_v4lstd(client);
+ break;
+
+ case VIDIOC_S_STD:
+ result = set_v4lstd(client, *(v4l2_std_id *)arg);
+ break;
+
+ case VIDIOC_G_INPUT:
+ *(int *)arg = state->input;
+ break;
+
+ case VIDIOC_S_INPUT:
+ result = set_input(client, *(int *)arg);
+ break;
+
+ case VIDIOC_S_FREQUENCY:
+ input_change(client);
+ break;
+
+ case VIDIOC_G_TUNER:
+ {
+ u8 mode = cx25840_read(client, 0x804);
+ u8 pref = cx25840_read(client, 0x809) & 0xf;
+ u8 vpres = cx25840_read(client, 0x80a) & 0x10;
+ int val = 0;
+
+ vt->capability |=
+ V4L2_TUNER_CAP_STEREO | V4L2_TUNER_CAP_LANG1 |
+ V4L2_TUNER_CAP_LANG2 | V4L2_TUNER_CAP_SAP;
+
+ vt->signal = vpres ? 0xffff : 0x0;
+
+ /* get rxsubchans and audmode */
+ if ((mode & 0xf) == 1)
+ val |= V4L2_TUNER_SUB_STEREO;
+ else
+ val |= V4L2_TUNER_SUB_MONO;
+
+ if (mode == 2 || mode == 4)
+ val |= V4L2_TUNER_SUB_LANG1 | V4L2_TUNER_SUB_LANG2;
+
+ if (mode & 0x10)
+ val |= V4L2_TUNER_SUB_SAP;
+
+ vt->rxsubchans = val;
+
+ switch (pref) {
+ case 0:
+ vt->audmode = V4L2_TUNER_MODE_MONO;
+ break;
+ case 1:
+ case 2:
+ vt->audmode = V4L2_TUNER_MODE_LANG2;
+ break;
+ case 4:
+ default:
+ vt->audmode = V4L2_TUNER_MODE_STEREO;
+ }
+ break;
+ }
+
+ case VIDIOC_S_TUNER:
+ switch (vt->audmode) {
+ case V4L2_TUNER_MODE_MONO:
+ case V4L2_TUNER_MODE_LANG1:
+ /* Force PREF_MODE to MONO */
+ cx25840_and_or(client, 0x809, ~0xf, 0x00);
+ break;
+ case V4L2_TUNER_MODE_STEREO:
+ /* Force PREF_MODE to STEREO */
+ cx25840_and_or(client, 0x809, ~0xf, 0x04);
+ break;
+ case V4L2_TUNER_MODE_LANG2:
+ /* Force PREF_MODE to LANG2 */
+ cx25840_and_or(client, 0x809, ~0xf, 0x01);
+ break;
+ }
+ break;
+
+ case VIDIOC_G_FMT:
+ result = get_v4lfmt(client, (struct v4l2_format *)arg);
+ break;
+
+ case VIDIOC_S_FMT:
+ result = set_v4lfmt(client, (struct v4l2_format *)arg);
+ break;
+
+ case VIDIOC_INT_RESET:
+ cx25840_initialize(client, 0);
+ break;
+
+ case VIDIOC_INT_G_CHIP_IDENT:
+ *(enum v4l2_chip_ident *)arg =
+ V4L2_IDENT_CX25840 + ((cx25840_read(client, 0x100) >> 4) & 0xf);
+ break;
+
+ default:
+ cx25840_err("invalid ioctl %x\n", cmd);
+ return -EINVAL;
+ }
+
+ return result;
+}
+
+/* ----------------------------------------------------------------------- */
+
+struct i2c_driver i2c_driver_cx25840;
+
+static int cx25840_detect_client(struct i2c_adapter *adapter, int address,
+ int kind)
+{
+ struct i2c_client *client;
+ struct cx25840_state *state;
+ u16 device_id;
+
+ /* Check if the adapter supports the needed features
+ * Not until kernel version 2.6.11 did the bit-algo
+ * correctly report that it would do an I2C-level xfer */
+ if (!i2c_check_functionality(adapter, I2C_FUNC_I2C))
+ return 0;
+
+ client = kmalloc(sizeof(struct i2c_client), GFP_KERNEL);
+ if (client == 0)
+ return -ENOMEM;
+
+ memset(client, 0, sizeof(struct i2c_client));
+ client->addr = address;
+ client->adapter = adapter;
+ client->driver = &i2c_driver_cx25840;
+ client->flags = I2C_CLIENT_ALLOW_USE;
+ snprintf(client->name, sizeof(client->name) - 1, "cx25840");
+
+ cx25840_dbg("detecting cx25840 client on address 0x%x\n", address << 1);
+
+ device_id = cx25840_read(client, 0x101) << 8;
+ device_id |= cx25840_read(client, 0x100);
+
+ /* The high byte of the device ID should be
+ * 0x84 if chip is present */
+ if ((device_id & 0xff00) != 0x8400) {
+ cx25840_dbg("cx25840 not found\n");
+ kfree(client);
+ return 0;
+ }
+
+ cx25840_info("cx25%3x-2%x found @ 0x%x (%s)\n",
+ (device_id & 0xfff0) >> 4,
+ (device_id & 0x0f) < 3 ? (device_id & 0x0f) + 1 : 3,
+ address << 1, adapter->name);
+
+ state = kmalloc(sizeof(struct cx25840_state), GFP_KERNEL);
+ if (state == NULL) {
+ kfree(client);
+ return -ENOMEM;
+ }
+
+ i2c_set_clientdata(client, state);
+ memset(state, 0, sizeof(struct cx25840_state));
+ state->input = CX25840_TUNER;
+ state->audclk_freq = V4L2_AUDCLK_48_KHZ;
+ state->audio_input = AUDIO_TUNER;
+ state->cardtype = CARDTYPE_PVR150;
+
+ cx25840_initialize(client, 1);
+
+ i2c_attach_client(client);
+
+ return 0;
+}
+
+static int cx25840_attach_adapter(struct i2c_adapter *adapter)
+{
+#ifdef I2C_CLASS_TV_ANALOG
+ if (adapter->class & I2C_CLASS_TV_ANALOG)
+#else
+ if (adapter->id == I2C_HW_B_BT848)
+#endif
+ return i2c_probe(adapter, &addr_data, &cx25840_detect_client);
+ return 0;
+}
+
+static int cx25840_detach_client(struct i2c_client *client)
+{
+ struct cx25840_state *state = i2c_get_clientdata(client);
+ int err;
+
+ err = i2c_detach_client(client);
+ if (err) {
+ return err;
+ }
+
+ kfree(state);
+ kfree(client);
+
+ return 0;
+}
+
+/* ----------------------------------------------------------------------- */
+
+struct i2c_driver i2c_driver_cx25840 = {
+ .name = "cx25840",
+
+ .id = I2C_DRIVERID_CX25840,
+ .flags = I2C_DF_NOTIFY,
+
+ .attach_adapter = cx25840_attach_adapter,
+ .detach_client = cx25840_detach_client,
+ .command = cx25840_command,
+ .owner = THIS_MODULE,
+};
+
+
+static int __init m__init(void)
+{
+ return i2c_add_driver(&i2c_driver_cx25840);
+}
+
+static void __exit m__exit(void)
+{
+ i2c_del_driver(&i2c_driver_cx25840);
+}
+
+module_init(m__init);
+module_exit(m__exit);
+
+/* ----------------------------------------------------------------------- */
+
+static void log_status(struct i2c_client *client)
+{
+ static const char *const fmt_strs[] = {
+ "0x0",
+ "NTSC-M", "NTSC-J", "NTSC-4.43",
+ "PAL-BDGHI", "PAL-M", "PAL-N", "PAL-Nc", "PAL-60",
+ "0x9", "0xA", "0xB",
+ "SECAM",
+ "0xD", "0xE", "0xF"
+ };
+
+ struct cx25840_state *state = i2c_get_clientdata(client);
+ u8 microctrl_vidfmt = cx25840_read(client, 0x80a);
+ u8 vidfmt_sel = cx25840_read(client, 0x400) & 0xf;
+ u8 gen_stat1 = cx25840_read(client, 0x40d);
+ u8 download_ctl = cx25840_read(client, 0x803);
+ u8 mod_det_stat0 = cx25840_read(client, 0x804);
+ u8 mod_det_stat1 = cx25840_read(client, 0x805);
+ u8 audio_config = cx25840_read(client, 0x808);
+ u8 pref_mode = cx25840_read(client, 0x809);
+ u8 afc0 = cx25840_read(client, 0x80b);
+ u8 mute_ctl = cx25840_read(client, 0x8d3);
+ char *p;
+
+ cx25840_info("Video signal: %spresent\n",
+ (microctrl_vidfmt & 0x10) ? "" : "not ");
+ cx25840_info("Detected format: %s\n",
+ fmt_strs[gen_stat1 & 0xf]);
+
+ switch (mod_det_stat0) {
+ case 0x00: p = "mono"; break;
+ case 0x01: p = "stereo"; break;
+ case 0x02: p = "dual"; break;
+ case 0x04: p = "tri"; break;
+ case 0x10: p = "mono with SAP"; break;
+ case 0x11: p = "stereo with SAP"; break;
+ case 0x12: p = "dual with SAP"; break;
+ case 0x14: p = "tri with SAP"; break;
+ case 0xfe: p = "forced mode"; break;
+ default: p = "not defined";
+ }
+ cx25840_info("Detected audio mode: %s\n", p);
+
+ switch (mod_det_stat1) {
+ case 0x00: p = "not defined"; break;
+ case 0x01: p = "EIAJ"; break;
+ case 0x02: p = "A2-M"; break;
+ case 0x03: p = "A2-BG"; break;
+ case 0x04: p = "A2-DK1"; break;
+ case 0x05: p = "A2-DK2"; break;
+ case 0x06: p = "A2-DK3"; break;
+ case 0x07: p = "A1 (6.0 MHz FM Mono)"; break;
+ case 0x08: p = "AM-L"; break;
+ case 0x09: p = "NICAM-BG"; break;
+ case 0x0a: p = "NICAM-DK"; break;
+ case 0x0b: p = "NICAM-I"; break;
+ case 0x0c: p = "NICAM-L"; break;
+ case 0x0d: p = "BTSC/EIAJ/A2-M Mono (4.5 MHz FMMono)"; break;
+ case 0x0e: p = "IF FM Radio"; break;
+ case 0x0f: p = "BTSC"; break;
+ case 0x10: p = "high-deviation FM"; break;
+ case 0x11: p = "very high-deviation FM"; break;
+ case 0xfd: p = "unknown audio standard"; break;
+ case 0xfe: p = "forced audio standard"; break;
+ case 0xff: p = "no detected audio standard"; break;
+ default: p = "not defined";
+ }
+ cx25840_info("Detected audio standard: %s\n", p);
+ cx25840_info("Audio muted: %s\n",
+ (mute_ctl & 0x2) ? "yes" : "no");
+ cx25840_info("Audio microcontroller: %s\n",
+ (download_ctl & 0x10) ? "running" : "stopped");
+
+ switch (audio_config >> 4) {
+ case 0x00: p = "undefined"; break;
+ case 0x01: p = "BTSC"; break;
+ case 0x02: p = "EIAJ"; break;
+ case 0x03: p = "A2-M"; break;
+ case 0x04: p = "A2-BG"; break;
+ case 0x05: p = "A2-DK1"; break;
+ case 0x06: p = "A2-DK2"; break;
+ case 0x07: p = "A2-DK3"; break;
+ case 0x08: p = "A1 (6.0 MHz FM Mono)"; break;
+ case 0x09: p = "AM-L"; break;
+ case 0x0a: p = "NICAM-BG"; break;
+ case 0x0b: p = "NICAM-DK"; break;
+ case 0x0c: p = "NICAM-I"; break;
+ case 0x0d: p = "NICAM-L"; break;
+ case 0x0e: p = "FM radio"; break;
+ case 0x0f: p = "automatic detection"; break;
+ default: p = "undefined";
+ }
+ cx25840_info("Configured audio standard: %s\n", p);
+
+ if ((audio_config >> 4) < 0xF) {
+ switch (audio_config & 0xF) {
+ case 0x00: p = "MONO1 (LANGUAGE A/Mono L+R channel for BTSC, EIAJ, A2)"; break;
+ case 0x01: p = "MONO2 (LANGUAGE B)"; break;
+ case 0x02: p = "MONO3 (STEREO forced MONO)"; break;
+ case 0x03: p = "MONO4 (NICAM ANALOG-Language C/Analog Fallback)"; break;
+ case 0x04: p = "STEREO"; break;
+ case 0x05: p = "DUAL1 (AB)"; break;
+ case 0x06: p = "DUAL2 (AC) (FM)"; break;
+ case 0x07: p = "DUAL3 (BC) (FM)"; break;
+ case 0x08: p = "DUAL4 (AC) (AM)"; break;
+ case 0x09: p = "DUAL5 (BC) (AM)"; break;
+ case 0x0a: p = "SAP"; break;
+ default: p = "undefined";
+ }
+ cx25840_info("Configured audio mode: %s\n", p);
+ } else {
+ switch (audio_config & 0xF) {
+ case 0x00: p = "BG"; break;
+ case 0x01: p = "DK1"; break;
+ case 0x02: p = "DK2"; break;
+ case 0x03: p = "DK3"; break;
+ case 0x04: p = "I"; break;
+ case 0x05: p = "L"; break;
+ case 0x06: p = "BTSC"; break;
+ case 0x07: p = "EIAJ"; break;
+ case 0x08: p = "A2-M"; break;
+ case 0x09: p = "FM Radio"; break;
+ case 0x0f: p = "automatic standard and mode detection"; break;
+ default: p = "undefined";
+ }
+ cx25840_info("Configured audio system: %s\n", p);
+ }
+
+ cx25840_info("Specified standard: %s\n",
+ vidfmt_sel ? fmt_strs[vidfmt_sel] : "automatic detection");
+
+ switch (state->input) {
+ case CX25840_COMPOSITE0: p = "Composite 0"; break;
+ case CX25840_COMPOSITE1: p = "Composite 1"; break;
+ case CX25840_SVIDEO0: p = "S-Video 0"; break;
+ case CX25840_SVIDEO1: p = "S-Video 1"; break;
+ case CX25840_TUNER: p = "Tuner"; break;
+ }
+ cx25840_info("Specified input: %s\n", p);
+ cx25840_info("Specified audio input: %s\n",
+ state->audio_input == 0 ? "Tuner" : "External");
+
+ switch (state->audclk_freq) {
+ case V4L2_AUDCLK_441_KHZ: p = "44.1 kHz"; break;
+ case V4L2_AUDCLK_48_KHZ: p = "48 kHz"; break;
+ case V4L2_AUDCLK_32_KHZ: p = "32 kHz"; break;
+ default: p = "undefined";
+ }
+ cx25840_info("Specified audioclock freq: %s\n", p);
+
+ switch (pref_mode & 0xf) {
+ case 0: p = "mono/language A"; break;
+ case 1: p = "language B"; break;
+ case 2: p = "language C"; break;
+ case 3: p = "analog fallback"; break;
+ case 4: p = "stereo"; break;
+ case 5: p = "language AC"; break;
+ case 6: p = "language BC"; break;
+ case 7: p = "language AB"; break;
+ default: p = "undefined";
+ }
+ cx25840_info("Preferred audio mode: %s\n", p);
+
+ if ((audio_config & 0xf) == 0xf) {
+ switch ((afc0 >> 3) & 0x3) {
+ case 0: p = "system DK"; break;
+ case 1: p = "system L"; break;
+ case 2: p = "autodetect"; break;
+ default: p = "undefined";
+ }
+ cx25840_info("Selected 65 MHz format: %s\n", p);
+
+ switch (afc0 & 0x7) {
+ case 0: p = "chroma"; break;
+ case 1: p = "BTSC"; break;
+ case 2: p = "EIAJ"; break;
+ case 3: p = "A2-M"; break;
+ case 4: p = "autodetect"; break;
+ default: p = "undefined";
+ }
+ cx25840_info("Selected 45 MHz format: %s\n", p);
+ }
+}