V4L/DVB (11065): au8522: add support for analog side of demodulator
Add support for the analog functionality in the au8522 analog/digital
demodulator
Thanks to Michael Krufky <mkrufky@linuxtv.org> and Steven Toth
<stoth@linuxtv.org> for providing sample hardware, engineering level support,
and testing.
Signed-off-by: Devin Heitmueller <dheitmueller@linuxtv.org>
Signed-off-by: Michael Krufky <mkrufky@linuxtv.org>
[mchehab: renamed drivers/media/video/au8522_decoder.c as drivers/media/dvb/frontends/au8522_decoder.c to avoid breaking bisect]
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
diff --git a/drivers/media/dvb/frontends/au8522_decoder.c b/drivers/media/dvb/frontends/au8522_decoder.c
new file mode 100644
index 0000000..e2927c1
--- /dev/null
+++ b/drivers/media/dvb/frontends/au8522_decoder.c
@@ -0,0 +1,839 @@
+/*
+ * Auvitek AU8522 QAM/8VSB demodulator driver and video decoder
+ *
+ * Copyright (C) 2009 Devin Heitmueller <dheitmueller@linuxtv.org>
+ * Copyright (C) 2005-2008 Auvitek International, Ltd.
+ *
+ * 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.
+ */
+
+/* Developer notes:
+ *
+ * VBI support is not yet working
+ * Saturation and hue setting are not yet working
+ * Enough is implemented here for CVBS and S-Video inputs, but the actual
+ * analog demodulator code isn't implemented (not needed for xc5000 since it
+ * has its own demodulator and outputs CVBS)
+ *
+ */
+
+#include <linux/kernel.h>
+#include <linux/slab.h>
+#include <linux/videodev2.h>
+#include <linux/i2c.h>
+#include <linux/delay.h>
+#include <media/v4l2-common.h>
+#include <media/v4l2-chip-ident.h>
+#include <media/v4l2-i2c-drv-legacy.h>
+#include <media/v4l2-device.h>
+#include "au8522.h"
+#include "au8522_priv.h"
+
+MODULE_AUTHOR("Devin Heitmueller");
+MODULE_LICENSE("GPL");
+
+static int au8522_analog_debug;
+
+static unsigned short normal_i2c[] = { 0x8e >> 1, I2C_CLIENT_END };
+
+module_param_named(analog_debug, au8522_analog_debug, int, 0644);
+
+MODULE_PARM_DESC(analog_debug,
+ "Analog debugging messages [0=Off (default) 1=On]");
+
+I2C_CLIENT_INSMOD;
+
+struct au8522_register_config {
+ u16 reg_name;
+ u8 reg_val[8];
+};
+
+
+/* Video Decoder Filter Coefficients
+ The values are as follows from left to right
+ 0="ATV RF" 1="ATV RF13" 2="CVBS" 3="S-Video" 4="PAL" 5=CVBS13" 6="SVideo13"
+*/
+struct au8522_register_config filter_coef[] = {
+ {AU8522_FILTER_COEF_R410, {0x25, 0x00, 0x25, 0x25, 0x00, 0x00, 0x00}},
+ {AU8522_FILTER_COEF_R411, {0x20, 0x00, 0x20, 0x20, 0x00, 0x00, 0x00}},
+ {AU8522_FILTER_COEF_R412, {0x03, 0x00, 0x03, 0x03, 0x00, 0x00, 0x00}},
+ {AU8522_FILTER_COEF_R413, {0xe6, 0x00, 0xe6, 0xe6, 0x00, 0x00, 0x00}},
+ {AU8522_FILTER_COEF_R414, {0x40, 0x00, 0x40, 0x40, 0x00, 0x00, 0x00}},
+ {AU8522_FILTER_COEF_R415, {0x1b, 0x00, 0x1b, 0x1b, 0x00, 0x00, 0x00}},
+ {AU8522_FILTER_COEF_R416, {0xc0, 0x00, 0xc0, 0x04, 0x00, 0x00, 0x00}},
+ {AU8522_FILTER_COEF_R417, {0x04, 0x00, 0x04, 0x04, 0x00, 0x00, 0x00}},
+ {AU8522_FILTER_COEF_R418, {0x8c, 0x00, 0x8c, 0x8c, 0x00, 0x00, 0x00}},
+ {AU8522_FILTER_COEF_R419, {0xa0, 0x40, 0xa0, 0xa0, 0x40, 0x40, 0x40}},
+ {AU8522_FILTER_COEF_R41A, {0x21, 0x09, 0x21, 0x21, 0x09, 0x09, 0x09}},
+ {AU8522_FILTER_COEF_R41B, {0x6c, 0x38, 0x6c, 0x6c, 0x38, 0x38, 0x38}},
+ {AU8522_FILTER_COEF_R41C, {0x03, 0xff, 0x03, 0x03, 0xff, 0xff, 0xff}},
+ {AU8522_FILTER_COEF_R41D, {0xbf, 0xc7, 0xbf, 0xbf, 0xc7, 0xc7, 0xc7}},
+ {AU8522_FILTER_COEF_R41E, {0xa0, 0xdf, 0xa0, 0xa0, 0xdf, 0xdf, 0xdf}},
+ {AU8522_FILTER_COEF_R41F, {0x10, 0x06, 0x10, 0x10, 0x06, 0x06, 0x06}},
+ {AU8522_FILTER_COEF_R420, {0xae, 0x30, 0xae, 0xae, 0x30, 0x30, 0x30}},
+ {AU8522_FILTER_COEF_R421, {0xc4, 0x01, 0xc4, 0xc4, 0x01, 0x01, 0x01}},
+ {AU8522_FILTER_COEF_R422, {0x54, 0xdd, 0x54, 0x54, 0xdd, 0xdd, 0xdd}},
+ {AU8522_FILTER_COEF_R423, {0xd0, 0xaf, 0xd0, 0xd0, 0xaf, 0xaf, 0xaf}},
+ {AU8522_FILTER_COEF_R424, {0x1c, 0xf7, 0x1c, 0x1c, 0xf7, 0xf7, 0xf7}},
+ {AU8522_FILTER_COEF_R425, {0x76, 0xdb, 0x76, 0x76, 0xdb, 0xdb, 0xdb}},
+ {AU8522_FILTER_COEF_R426, {0x61, 0xc0, 0x61, 0x61, 0xc0, 0xc0, 0xc0}},
+ {AU8522_FILTER_COEF_R427, {0xd1, 0x2f, 0xd1, 0xd1, 0x2f, 0x2f, 0x2f}},
+ {AU8522_FILTER_COEF_R428, {0x84, 0xd8, 0x84, 0x84, 0xd8, 0xd8, 0xd8}},
+ {AU8522_FILTER_COEF_R429, {0x06, 0xfb, 0x06, 0x06, 0xfb, 0xfb, 0xfb}},
+ {AU8522_FILTER_COEF_R42A, {0x21, 0xd5, 0x21, 0x21, 0xd5, 0xd5, 0xd5}},
+ {AU8522_FILTER_COEF_R42B, {0x0a, 0x3e, 0x0a, 0x0a, 0x3e, 0x3e, 0x3e}},
+ {AU8522_FILTER_COEF_R42C, {0xe6, 0x15, 0xe6, 0xe6, 0x15, 0x15, 0x15}},
+ {AU8522_FILTER_COEF_R42D, {0x01, 0x34, 0x01, 0x01, 0x34, 0x34, 0x34}},
+
+};
+#define NUM_FILTER_COEF (sizeof (filter_coef) / sizeof(struct au8522_register_config))
+
+
+/* Registers 0x060b through 0x0652 are the LP Filter coefficients
+ The values are as follows from left to right
+ 0="SIF" 1="ATVRF/ATVRF13"
+ Note: the "ATVRF/ATVRF13" mode has never been tested
+*/
+struct au8522_register_config lpfilter_coef[] = {
+ {0x060b, {0x21, 0x0b}},
+ {0x060c, {0xad, 0xad}},
+ {0x060d, {0x70, 0xf0}},
+ {0x060e, {0xea, 0xe9}},
+ {0x060f, {0xdd, 0xdd}},
+ {0x0610, {0x08, 0x64}},
+ {0x0611, {0x60, 0x60}},
+ {0x0612, {0xf8, 0xb2}},
+ {0x0613, {0x01, 0x02}},
+ {0x0614, {0xe4, 0xb4}},
+ {0x0615, {0x19, 0x02}},
+ {0x0616, {0xae, 0x2e}},
+ {0x0617, {0xee, 0xc5}},
+ {0x0618, {0x56, 0x56}},
+ {0x0619, {0x30, 0x58}},
+ {0x061a, {0xf9, 0xf8}},
+ {0x061b, {0x24, 0x64}},
+ {0x061c, {0x07, 0x07}},
+ {0x061d, {0x30, 0x30}},
+ {0x061e, {0xa9, 0xed}},
+ {0x061f, {0x09, 0x0b}},
+ {0x0620, {0x42, 0xc2}},
+ {0x0621, {0x1d, 0x2a}},
+ {0x0622, {0xd6, 0x56}},
+ {0x0623, {0x95, 0x8b}},
+ {0x0624, {0x2b, 0x2b}},
+ {0x0625, {0x30, 0x24}},
+ {0x0626, {0x3e, 0x3e}},
+ {0x0627, {0x62, 0xe2}},
+ {0x0628, {0xe9, 0xf5}},
+ {0x0629, {0x99, 0x19}},
+ {0x062a, {0xd4, 0x11}},
+ {0x062b, {0x03, 0x04}},
+ {0x062c, {0xb5, 0x85}},
+ {0x062d, {0x1e, 0x20}},
+ {0x062e, {0x2a, 0xea}},
+ {0x062f, {0xd7, 0xd2}},
+ {0x0630, {0x15, 0x15}},
+ {0x0631, {0xa3, 0xa9}},
+ {0x0632, {0x1f, 0x1f}},
+ {0x0633, {0xf9, 0xd1}},
+ {0x0634, {0xc0, 0xc3}},
+ {0x0635, {0x4d, 0x8d}},
+ {0x0636, {0x21, 0x31}},
+ {0x0637, {0x83, 0x83}},
+ {0x0638, {0x08, 0x8c}},
+ {0x0639, {0x19, 0x19}},
+ {0x063a, {0x45, 0xa5}},
+ {0x063b, {0xef, 0xec}},
+ {0x063c, {0x8a, 0x8a}},
+ {0x063d, {0xf4, 0xf6}},
+ {0x063e, {0x8f, 0x8f}},
+ {0x063f, {0x44, 0x0c}},
+ {0x0640, {0xef, 0xf0}},
+ {0x0641, {0x66, 0x66}},
+ {0x0642, {0xcc, 0xd2}},
+ {0x0643, {0x41, 0x41}},
+ {0x0644, {0x63, 0x93}},
+ {0x0645, {0x8e, 0x8e}},
+ {0x0646, {0xa2, 0x42}},
+ {0x0647, {0x7b, 0x7b}},
+ {0x0648, {0x04, 0x04}},
+ {0x0649, {0x00, 0x00}},
+ {0x064a, {0x40, 0x40}},
+ {0x064b, {0x8c, 0x98}},
+ {0x064c, {0x00, 0x00}},
+ {0x064d, {0x63, 0xc3}},
+ {0x064e, {0x04, 0x04}},
+ {0x064f, {0x20, 0x20}},
+ {0x0650, {0x00, 0x00}},
+ {0x0651, {0x40 ,0x40}},
+ {0x0652, {0x01, 0x01}},
+};
+#define NUM_LPFILTER_COEF (sizeof (lpfilter_coef) / sizeof(struct au8522_register_config))
+
+static inline struct au8522_state *to_state(struct v4l2_subdev *sd)
+{
+ return container_of(sd, struct au8522_state, sd);
+}
+
+static void setup_vbi(struct au8522_state *state, int aud_input)
+{
+ int i;
+
+ /* These are set to zero regardless of what mode we're in */
+ au8522_writereg(state, AU8522_TVDEC_VBI_CTRL_H_REG017H, 0x00);
+ au8522_writereg(state, AU8522_TVDEC_VBI_CTRL_L_REG018H, 0x00);
+ au8522_writereg(state, AU8522_TVDEC_VBI_USER_TOTAL_BITS_REG019H, 0x00);
+ au8522_writereg(state, AU8522_TVDEC_VBI_USER_TUNIT_H_REG01AH, 0x00);
+ au8522_writereg(state, AU8522_TVDEC_VBI_USER_TUNIT_L_REG01BH, 0x00);
+ au8522_writereg(state, AU8522_TVDEC_VBI_USER_THRESH1_REG01CH, 0x00);
+ au8522_writereg(state, AU8522_TVDEC_VBI_USER_FRAME_PAT2_REG01EH, 0x00);
+ au8522_writereg(state, AU8522_TVDEC_VBI_USER_FRAME_PAT1_REG01FH, 0x00);
+ au8522_writereg(state, AU8522_TVDEC_VBI_USER_FRAME_PAT0_REG020H, 0x00);
+ au8522_writereg(state, AU8522_TVDEC_VBI_USER_FRAME_MASK2_REG021H,0x00);
+ au8522_writereg(state, AU8522_TVDEC_VBI_USER_FRAME_MASK1_REG022H,0x00);
+ au8522_writereg(state, AU8522_TVDEC_VBI_USER_FRAME_MASK0_REG023H,0x00);
+
+ /* Setup the VBI registers */
+ for (i = 0x30; i < 0x60; i++) {
+ au8522_writereg(state, i, 0x40);
+ }
+ /* For some reason, every register is 0x40 except register 0x44
+ (confirmed via the HVR-950q USB capture) */
+ au8522_writereg(state, 0x44, 0x60);
+
+ /* Enable VBI (we always do this regardless of whether the user is
+ viewing closed caption info) */
+ au8522_writereg(state, AU8522_TVDEC_VBI_CTRL_H_REG017H,
+ AU8522_TVDEC_VBI_CTRL_H_REG017H_CCON);
+
+}
+
+static void setup_decoder_defaults(struct au8522_state *state, u8 input_mode)
+{
+ int i;
+ int filter_coef_type;
+
+ /* Provide reasonable defaults for picture tuning values */
+ au8522_writereg(state, AU8522_TVDEC_SHARPNESSREG009H, 0x07);
+ au8522_writereg(state, AU8522_TVDEC_BRIGHTNESS_REG00AH, 0xed);
+ state->brightness = 0xed - 128;
+ au8522_writereg(state, AU8522_TVDEC_CONTRAST_REG00BH, 0x79);
+ state->contrast = 0x79;
+ au8522_writereg(state, AU8522_TVDEC_SATURATION_CB_REG00CH, 0x80);
+ au8522_writereg(state, AU8522_TVDEC_SATURATION_CR_REG00DH, 0x80);
+ au8522_writereg(state, AU8522_TVDEC_HUE_H_REG00EH, 0x00);
+ au8522_writereg(state, AU8522_TVDEC_HUE_L_REG00FH, 0x00);
+
+ /* Other decoder registers */
+ au8522_writereg(state, AU8522_TVDEC_INT_MASK_REG010H, 0x00);
+
+ if (input_mode == 0x23) {
+ /* S-Video input mapping */
+ au8522_writereg(state, AU8522_VIDEO_MODE_REG011H, 0x04);
+ } else {
+ /* All other modes (CVBS/ATVRF etc.) */
+ au8522_writereg(state, AU8522_VIDEO_MODE_REG011H, 0x00);
+ }
+
+ au8522_writereg(state, AU8522_TVDEC_PGA_REG012H,
+ AU8522_TVDEC_PGA_REG012H_CVBS);
+ au8522_writereg(state, AU8522_TVDEC_COMB_MODE_REG015H,
+ AU8522_TVDEC_COMB_MODE_REG015H_CVBS);
+ au8522_writereg(state, AU8522_TVDED_DBG_MODE_REG060H,
+ AU8522_TVDED_DBG_MODE_REG060H_CVBS);
+ au8522_writereg(state, AU8522_TVDEC_FORMAT_CTRL1_REG061H,
+ AU8522_TVDEC_FORMAT_CTRL1_REG061H_CVBS13);
+ au8522_writereg(state, AU8522_TVDEC_FORMAT_CTRL2_REG062H,
+ AU8522_TVDEC_FORMAT_CTRL2_REG062H_CVBS13);
+ au8522_writereg(state, AU8522_TVDEC_VCR_DET_LLIM_REG063H,
+ AU8522_TVDEC_VCR_DET_LLIM_REG063H_CVBS);
+ au8522_writereg(state, AU8522_TVDEC_VCR_DET_HLIM_REG064H,
+ AU8522_TVDEC_VCR_DET_HLIM_REG064H_CVBS);
+ au8522_writereg(state, AU8522_TVDEC_COMB_VDIF_THR1_REG065H,
+ AU8522_TVDEC_COMB_VDIF_THR1_REG065H_CVBS);
+ au8522_writereg(state, AU8522_TVDEC_COMB_VDIF_THR2_REG066H,
+ AU8522_TVDEC_COMB_VDIF_THR2_REG066H_CVBS);
+ au8522_writereg(state, AU8522_TVDEC_COMB_VDIF_THR3_REG067H,
+ AU8522_TVDEC_COMB_VDIF_THR3_REG067H_CVBS);
+ au8522_writereg(state, AU8522_TVDEC_COMB_NOTCH_THR_REG068H,
+ AU8522_TVDEC_COMB_NOTCH_THR_REG068H_CVBS);
+ au8522_writereg(state, AU8522_TVDEC_COMB_HDIF_THR1_REG069H,
+ AU8522_TVDEC_COMB_HDIF_THR1_REG069H_CVBS);
+ au8522_writereg(state, AU8522_TVDEC_COMB_HDIF_THR2_REG06AH,
+ AU8522_TVDEC_COMB_HDIF_THR2_REG06AH_CVBS);
+ au8522_writereg(state, AU8522_TVDEC_COMB_HDIF_THR3_REG06BH,
+ AU8522_TVDEC_COMB_HDIF_THR3_REG06BH_CVBS);
+ au8522_writereg(state, AU8522_TVDEC_COMB_DCDIF_THR1_REG06CH,
+ AU8522_TVDEC_COMB_DCDIF_THR1_REG06CH_CVBS);
+ au8522_writereg(state, AU8522_TVDEC_COMB_DCDIF_THR2_REG06DH,
+ AU8522_TVDEC_COMB_DCDIF_THR2_REG06DH_CVBS);
+ au8522_writereg(state, AU8522_TVDEC_COMB_DCDIF_THR3_REG06EH,
+ AU8522_TVDEC_COMB_DCDIF_THR3_REG06EH_CVBS);
+ au8522_writereg(state, AU8522_TVDEC_UV_SEP_THR_REG06FH,
+ AU8522_TVDEC_UV_SEP_THR_REG06FH_CVBS);
+ au8522_writereg(state, AU8522_TVDEC_COMB_DC_THR1_NTSC_REG070H,
+ AU8522_TVDEC_COMB_DC_THR1_NTSC_REG070H_CVBS);
+ au8522_writereg(state, AU8522_REG071H, AU8522_REG071H_CVBS);
+ au8522_writereg(state, AU8522_REG072H, AU8522_REG072H_CVBS);
+ au8522_writereg(state, AU8522_TVDEC_COMB_DC_THR2_NTSC_REG073H,
+ AU8522_TVDEC_COMB_DC_THR2_NTSC_REG073H_CVBS);
+ au8522_writereg(state, AU8522_REG074H, AU8522_REG074H_CVBS);
+ au8522_writereg(state, AU8522_REG075H, AU8522_REG075H_CVBS);
+ au8522_writereg(state, AU8522_TVDEC_DCAGC_CTRL_REG077H,
+ AU8522_TVDEC_DCAGC_CTRL_REG077H_CVBS);
+ au8522_writereg(state, AU8522_TVDEC_PIC_START_ADJ_REG078H,
+ AU8522_TVDEC_PIC_START_ADJ_REG078H_CVBS);
+ au8522_writereg(state, AU8522_TVDEC_AGC_HIGH_LIMIT_REG079H,
+ AU8522_TVDEC_AGC_HIGH_LIMIT_REG079H_CVBS);
+ au8522_writereg(state, AU8522_TVDEC_MACROVISION_SYNC_THR_REG07AH,
+ AU8522_TVDEC_MACROVISION_SYNC_THR_REG07AH_CVBS);
+ au8522_writereg(state, AU8522_TVDEC_INTRP_CTRL_REG07BH,
+ AU8522_TVDEC_INTRP_CTRL_REG07BH_CVBS);
+ au8522_writereg(state, AU8522_TVDEC_AGC_LOW_LIMIT_REG0E4H,
+ AU8522_TVDEC_AGC_LOW_LIMIT_REG0E4H_CVBS);
+ au8522_writereg(state, AU8522_TOREGAAGC_REG0E5H,
+ AU8522_TOREGAAGC_REG0E5H_CVBS);
+ au8522_writereg(state, AU8522_REG016H, AU8522_REG016H_CVBS);
+
+ setup_vbi(state, 0);
+
+ if (input_mode == AU8522_INPUT_CONTROL_REG081H_SVIDEO_CH13 ||
+ input_mode == AU8522_INPUT_CONTROL_REG081H_SVIDEO_CH24) {
+ /* Despite what the table says, for the HVR-950q we still need
+ to be in CVBS mode for the S-Video input (reason uknown). */
+ /* filter_coef_type = 3; */
+ filter_coef_type = 5;
+ } else {
+ filter_coef_type = 5;
+ }
+
+ /* Load the Video Decoder Filter Coefficients */
+ for (i = 0; i < NUM_FILTER_COEF; i++) {
+ au8522_writereg(state, filter_coef[i].reg_name,
+ filter_coef[i].reg_val[filter_coef_type]);
+ }
+
+ /* It's not clear what these registers are for, but they are always
+ set to the same value regardless of what mode we're in */
+ au8522_writereg(state, AU8522_REG42EH, 0x87);
+ au8522_writereg(state, AU8522_REG42FH, 0xa2);
+ au8522_writereg(state, AU8522_REG430H, 0xbf);
+ au8522_writereg(state, AU8522_REG431H, 0xcb);
+ au8522_writereg(state, AU8522_REG432H, 0xa1);
+ au8522_writereg(state, AU8522_REG433H, 0x41);
+ au8522_writereg(state, AU8522_REG434H, 0x88);
+ au8522_writereg(state, AU8522_REG435H, 0xc2);
+ au8522_writereg(state, AU8522_REG436H, 0x3c);
+}
+
+static void au8522_setup_cvbs_mode(struct au8522_state *state)
+{
+ /* here we're going to try the pre-programmed route */
+ au8522_writereg(state, AU8522_MODULE_CLOCK_CONTROL_REG0A3H,
+ AU8522_MODULE_CLOCK_CONTROL_REG0A3H_CVBS);
+
+ au8522_writereg(state, AU8522_PGA_CONTROL_REG082H, 0x00);
+ au8522_writereg(state, AU8522_CLAMPING_CONTROL_REG083H, 0x0e);
+ au8522_writereg(state, AU8522_PGA_CONTROL_REG082H, 0x10);
+
+ au8522_writereg(state, AU8522_INPUT_CONTROL_REG081H,
+ AU8522_INPUT_CONTROL_REG081H_CVBS_CH1);
+
+ setup_decoder_defaults(state, AU8522_INPUT_CONTROL_REG081H_CVBS_CH1);
+
+ au8522_writereg(state, AU8522_SYSTEM_MODULE_CONTROL_0_REG0A4H,
+ AU8522_SYSTEM_MODULE_CONTROL_0_REG0A4H_CVBS);
+}
+
+static void au8522_setup_cvbs_tuner_mode(struct au8522_state *state)
+{
+ /* here we're going to try the pre-programmed route */
+ au8522_writereg(state, AU8522_MODULE_CLOCK_CONTROL_REG0A3H,
+ AU8522_MODULE_CLOCK_CONTROL_REG0A3H_CVBS);
+
+ /* It's not clear why they turn off the PGA before enabling the clamp
+ control, but the Windows trace does it so we will too... */
+ au8522_writereg(state, AU8522_PGA_CONTROL_REG082H, 0x00);
+
+ /* Enable clamping control */
+ au8522_writereg(state, AU8522_CLAMPING_CONTROL_REG083H, 0x0e);
+
+ /* Turn on the PGA */
+ au8522_writereg(state, AU8522_PGA_CONTROL_REG082H, 0x10);
+
+ /* Set input mode to CVBS on channel 4 with SIF audio input enabled */
+ au8522_writereg(state, AU8522_INPUT_CONTROL_REG081H,
+ AU8522_INPUT_CONTROL_REG081H_CVBS_CH4_SIF);
+
+ setup_decoder_defaults(state,
+ AU8522_INPUT_CONTROL_REG081H_CVBS_CH4_SIF);
+
+ au8522_writereg(state, AU8522_SYSTEM_MODULE_CONTROL_0_REG0A4H,
+ AU8522_SYSTEM_MODULE_CONTROL_0_REG0A4H_CVBS);
+}
+
+static void au8522_setup_svideo_mode(struct au8522_state *state)
+{
+ au8522_writereg(state, AU8522_MODULE_CLOCK_CONTROL_REG0A3H,
+ AU8522_MODULE_CLOCK_CONTROL_REG0A3H_SVIDEO);
+
+ /* Set input to Y on Channe1, C on Channel 3 */
+ au8522_writereg(state, AU8522_INPUT_CONTROL_REG081H,
+ AU8522_INPUT_CONTROL_REG081H_SVIDEO_CH13);
+
+ /* Disable clamping control (required for S-video) */
+ au8522_writereg(state, AU8522_CLAMPING_CONTROL_REG083H, 0x00);
+
+ setup_decoder_defaults(state,
+ AU8522_INPUT_CONTROL_REG081H_SVIDEO_CH13);
+
+ au8522_writereg(state, AU8522_SYSTEM_MODULE_CONTROL_0_REG0A4H,
+ AU8522_SYSTEM_MODULE_CONTROL_0_REG0A4H_CVBS);
+}
+
+/* ----------------------------------------------------------------------- */
+
+static void disable_audio_input(struct au8522_state *state)
+{
+ /* This can probably be optimized */
+ au8522_writereg(state, AU8522_AUDIO_VOLUME_L_REG0F2H, 0x00);
+ au8522_writereg(state, AU8522_AUDIO_VOLUME_R_REG0F3H, 0x00);
+ au8522_writereg(state, AU8522_AUDIO_VOLUME_REG0F4H, 0x00);
+ au8522_writereg(state, AU8522_I2C_CONTROL_REG1_REG091H, 0x80);
+ au8522_writereg(state, AU8522_I2C_CONTROL_REG0_REG090H, 0x84);
+
+ au8522_writereg(state, AU8522_ENA_USB_REG101H, 0x00);
+ au8522_writereg(state, AU8522_AUDIO_VOLUME_L_REG0F2H, 0x7F);
+ au8522_writereg(state, AU8522_AUDIO_VOLUME_R_REG0F3H, 0x7F);
+ au8522_writereg(state, AU8522_REG0F9H, AU8522_REG0F9H_AUDIO);
+ au8522_writereg(state, AU8522_AUDIO_MODE_REG0F1H, 0x40);
+
+ au8522_writereg(state, AU8522_GPIO_DATA_REG0E2H, 0x11);
+ msleep(5);
+ au8522_writereg(state, AU8522_GPIO_DATA_REG0E2H, 0x00);
+
+ au8522_writereg(state, AU8522_SYSTEM_MODULE_CONTROL_1_REG0A5H, 0x04);
+ au8522_writereg(state, AU8522_AUDIOFREQ_REG606H, 0x03);
+ au8522_writereg(state, AU8522_I2S_CTRL_2_REG112H, 0x02);
+
+ au8522_writereg(state, AU8522_SYSTEM_MODULE_CONTROL_0_REG0A4H,
+ AU8522_SYSTEM_MODULE_CONTROL_0_REG0A4H_CVBS);
+}
+
+/* 0=disable, 1=SIF */
+static void set_audio_input(struct au8522_state *state, int aud_input)
+{
+ int i;
+
+ /* Note that this function needs to be used in conjunction with setting
+ the input routing via register 0x81 */
+
+ if (aud_input == AU8522_AUDIO_NONE) {
+ disable_audio_input(state);
+ return;
+ }
+
+ if (aud_input != AU8522_AUDIO_SIF) {
+ /* The caller asked for a mode we don't currently support */
+ printk("Unsupported audio mode requested! mode=%d\n",
+ aud_input);
+ return;
+ }
+
+ /* Load the Audio Decoder Filter Coefficients */
+ for (i = 0; i < NUM_LPFILTER_COEF; i++) {
+ au8522_writereg(state, lpfilter_coef[i].reg_name,
+ lpfilter_coef[i].reg_val[0]);
+ }
+
+ /* Setup audio */
+ au8522_writereg(state, AU8522_AUDIO_VOLUME_L_REG0F2H, 0x00);
+ au8522_writereg(state, AU8522_AUDIO_VOLUME_R_REG0F3H, 0x00);
+ au8522_writereg(state, AU8522_AUDIO_VOLUME_REG0F4H, 0x00);
+ au8522_writereg(state, AU8522_I2C_CONTROL_REG1_REG091H, 0x80);
+ au8522_writereg(state, AU8522_I2C_CONTROL_REG0_REG090H, 0x84);
+ msleep(150);
+ au8522_writereg(state, AU8522_SYSTEM_MODULE_CONTROL_0_REG0A4H, 0x00);
+ msleep(1);
+ au8522_writereg(state, AU8522_SYSTEM_MODULE_CONTROL_0_REG0A4H, 0x9d);
+ msleep(50);
+ au8522_writereg(state, AU8522_AUDIO_VOLUME_L_REG0F2H, 0x7F);
+ au8522_writereg(state, AU8522_AUDIO_VOLUME_R_REG0F3H, 0x7F);
+ au8522_writereg(state, AU8522_AUDIO_VOLUME_REG0F4H, 0xff);
+ msleep(80);
+ au8522_writereg(state, AU8522_AUDIO_VOLUME_L_REG0F2H, 0x7F);
+ au8522_writereg(state, AU8522_AUDIO_VOLUME_R_REG0F3H, 0x7F);
+ au8522_writereg(state, AU8522_REG0F9H, AU8522_REG0F9H_AUDIO);
+ au8522_writereg(state, AU8522_AUDIO_MODE_REG0F1H, 0x82);
+ msleep(70);
+ au8522_writereg(state, AU8522_SYSTEM_MODULE_CONTROL_1_REG0A5H, 0x09);
+ au8522_writereg(state, AU8522_AUDIOFREQ_REG606H, 0x03);
+ au8522_writereg(state, AU8522_I2S_CTRL_2_REG112H, 0xc2);
+}
+
+/* ----------------------------------------------------------------------- */
+
+static int au8522_s_ctrl(struct v4l2_subdev *sd, struct v4l2_control *ctrl)
+{
+ struct au8522_state *state = to_state(sd);
+
+ switch (ctrl->id) {
+ case V4L2_CID_BRIGHTNESS:
+ state->brightness = ctrl->value;
+ au8522_writereg(state, AU8522_TVDEC_BRIGHTNESS_REG00AH,
+ ctrl->value - 128);
+ break;
+ case V4L2_CID_CONTRAST:
+ state->contrast = ctrl->value;
+ au8522_writereg(state, AU8522_TVDEC_CONTRAST_REG00BH,
+ ctrl->value);
+ break;
+ case V4L2_CID_SATURATION:
+ case V4L2_CID_HUE:
+ 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:
+ /* Not yet implemented */
+ default:
+ return -EINVAL;
+ }
+
+ return 0;
+}
+
+static int au8522_g_ctrl(struct v4l2_subdev *sd, struct v4l2_control *ctrl)
+{
+ struct au8522_state *state = to_state(sd);
+
+ /* Note that we are using values cached in the state structure instead
+ of reading the registers due to issues with i2c reads not working
+ properly/consistently yet on the HVR-950q */
+
+ switch (ctrl->id) {
+ case V4L2_CID_BRIGHTNESS:
+ ctrl->value = state->brightness;
+ break;
+ case V4L2_CID_CONTRAST:
+ ctrl->value = state->contrast;
+ break;
+ case V4L2_CID_SATURATION:
+ case V4L2_CID_HUE:
+ 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:
+ /* Not yet supported */
+ default:
+ return -EINVAL;
+ }
+
+ return 0;
+}
+
+/* ----------------------------------------------------------------------- */
+
+static int au8522_g_fmt(struct v4l2_subdev *sd, struct v4l2_format *fmt)
+{
+ switch (fmt->type) {
+ default:
+ return -EINVAL;
+ }
+ return 0;
+}
+
+static int au8522_s_fmt(struct v4l2_subdev *sd, struct v4l2_format *fmt)
+{
+ switch (fmt->type) {
+ case V4L2_BUF_TYPE_VIDEO_CAPTURE:
+ /* Not yet implemented */
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ return 0;
+}
+
+/* ----------------------------------------------------------------------- */
+
+#ifdef CONFIG_VIDEO_ADV_DEBUG
+static int au8522_g_register(struct v4l2_subdev *sd,
+ struct v4l2_dbg_register *reg)
+{
+ struct i2c_client *client = v4l2_get_subdevdata(sd);
+ struct au8522_state *state = to_state(sd);
+
+ if (!v4l2_chip_match_i2c_client(client, ®->match))
+ return -EINVAL;
+ if (!capable(CAP_SYS_ADMIN))
+ return -EPERM;
+ reg->val = au8522_readreg(state, reg->reg & 0xffff);
+ return 0;
+}
+
+static int au8522_s_register(struct v4l2_subdev *sd,
+ struct v4l2_dbg_register *reg)
+{
+ struct i2c_client *client = v4l2_get_subdevdata(sd);
+ struct au8522_state *state = to_state(sd);
+
+ if (!v4l2_chip_match_i2c_client(client, ®->match))
+ return -EINVAL;
+ if (!capable(CAP_SYS_ADMIN))
+ return -EPERM;
+ au8522_writereg(state, reg->reg, reg->val & 0xff);
+ return 0;
+}
+#endif
+
+static int au8522_s_stream(struct v4l2_subdev *sd, int enable)
+{
+ struct au8522_state *state = to_state(sd);
+
+ if (enable) {
+ au8522_writereg(state, AU8522_SYSTEM_MODULE_CONTROL_0_REG0A4H,
+ 0x01);
+ msleep(1);
+ au8522_writereg(state, AU8522_SYSTEM_MODULE_CONTROL_0_REG0A4H,
+ AU8522_SYSTEM_MODULE_CONTROL_0_REG0A4H_CVBS);
+ } else {
+ /* This does not completely power down the device
+ (it only reduces it from around 140ma to 80ma) */
+ au8522_writereg(state, AU8522_SYSTEM_MODULE_CONTROL_0_REG0A4H,
+ 1 << 5);
+ }
+ return 0;
+}
+
+static int au8522_queryctrl(struct v4l2_subdev *sd, struct v4l2_queryctrl *qc)
+{
+ switch (qc->id) {
+ case V4L2_CID_CONTRAST:
+ return v4l2_ctrl_query_fill(qc, 0, 255, 1,
+ AU8522_TVDEC_CONTRAST_REG00BH_CVBS);
+ case V4L2_CID_BRIGHTNESS:
+ return v4l2_ctrl_query_fill(qc, 0, 255, 1, 128);
+ case V4L2_CID_SATURATION:
+ case V4L2_CID_HUE:
+ /* Not yet implemented */
+ default:
+ break;
+ }
+
+ return -EINVAL;
+}
+
+static int au8522_reset(struct v4l2_subdev *sd, u32 val)
+{
+ struct au8522_state *state = to_state(sd);
+
+ au8522_writereg(state, 0xa4, 1 << 5);
+
+ return 0;
+}
+
+static int au8522_s_video_routing(struct v4l2_subdev *sd,
+ const struct v4l2_routing *route)
+{
+ struct au8522_state *state = to_state(sd);
+
+ au8522_reset(sd, 0);
+
+ /* Jam open the i2c gate to the tuner. We do this here to handle the
+ case where the user went into digital mode (causing the gate to be
+ closed), and then came back to analog mode */
+ au8522_writereg(state, 0x106, 1);
+
+ if (route->input == AU8522_COMPOSITE_CH1) {
+ au8522_setup_cvbs_mode(state);
+ } else if (route->input == AU8522_SVIDEO_CH13) {
+ au8522_setup_svideo_mode(state);
+ } else if (route->input == AU8522_COMPOSITE_CH4_SIF) {
+ au8522_setup_cvbs_tuner_mode(state);
+ } else {
+ printk("au8522 mode not currently supported\n");
+ return -EINVAL;
+ }
+ return 0;
+}
+
+static int au8522_s_audio_routing(struct v4l2_subdev *sd,
+ const struct v4l2_routing *route)
+{
+ struct au8522_state *state = to_state(sd);
+ set_audio_input(state, route->input);
+ return 0;
+}
+
+static int au8522_g_tuner(struct v4l2_subdev *sd, struct v4l2_tuner *vt)
+{
+ int val = 0;
+ struct au8522_state *state = to_state(sd);
+ u8 lock_status;
+
+ /* Interrogate the decoder to see if we are getting a real signal */
+ lock_status = au8522_readreg(state, 0x00);
+ if (lock_status == 0xa2)
+ vt->signal = 0x01;
+ else
+ vt->signal = 0x00;
+
+ vt->capability |=
+ V4L2_TUNER_CAP_STEREO | V4L2_TUNER_CAP_LANG1 |
+ V4L2_TUNER_CAP_LANG2 | V4L2_TUNER_CAP_SAP;
+
+ val = V4L2_TUNER_SUB_MONO;
+ vt->rxsubchans = val;
+ vt->audmode = V4L2_TUNER_MODE_STEREO;
+ return 0;
+}
+
+static int au8522_g_chip_ident(struct v4l2_subdev *sd,
+ struct v4l2_dbg_chip_ident *chip)
+{
+ struct au8522_state *state = to_state(sd);
+ struct i2c_client *client = v4l2_get_subdevdata(sd);
+
+ return v4l2_chip_ident_i2c_client(client, chip, state->id, state->rev);
+}
+
+static int au8522_log_status(struct v4l2_subdev *sd)
+{
+ /* FIXME: Add some status info here */
+ return 0;
+}
+
+static int au8522_command(struct i2c_client *client, unsigned cmd, void *arg)
+{
+ return v4l2_subdev_command(i2c_get_clientdata(client), cmd, arg);
+}
+
+/* ----------------------------------------------------------------------- */
+
+static const struct v4l2_subdev_core_ops au8522_core_ops = {
+ .log_status = au8522_log_status,
+ .g_chip_ident = au8522_g_chip_ident,
+ .g_ctrl = au8522_g_ctrl,
+ .s_ctrl = au8522_s_ctrl,
+ .queryctrl = au8522_queryctrl,
+ .reset = au8522_reset,
+#ifdef CONFIG_VIDEO_ADV_DEBUG
+ .g_register = au8522_g_register,
+ .s_register = au8522_s_register,
+#endif
+};
+
+static const struct v4l2_subdev_tuner_ops au8522_tuner_ops = {
+ .g_tuner = au8522_g_tuner,
+};
+
+static const struct v4l2_subdev_audio_ops au8522_audio_ops = {
+ .s_routing = au8522_s_audio_routing,
+};
+
+static const struct v4l2_subdev_video_ops au8522_video_ops = {
+ .s_routing = au8522_s_video_routing,
+ .g_fmt = au8522_g_fmt,
+ .s_fmt = au8522_s_fmt,
+ .s_stream = au8522_s_stream,
+};
+
+static const struct v4l2_subdev_ops au8522_ops = {
+ .core = &au8522_core_ops,
+ .tuner = &au8522_tuner_ops,
+ .audio = &au8522_audio_ops,
+ .video = &au8522_video_ops,
+};
+
+/* ----------------------------------------------------------------------- */
+
+static int au8522_probe(struct i2c_client *client,
+ const struct i2c_device_id *did)
+{
+ struct au8522_state *state;
+ struct v4l2_subdev *sd;
+ int instance;
+ struct au8522_config *demod_config;
+
+ /* Check if the adapter supports the needed features */
+ if (!i2c_check_functionality(client->adapter,
+ I2C_FUNC_SMBUS_BYTE_DATA)) {
+ return -EIO;
+ }
+
+ /* allocate memory for the internal state */
+ instance = au8522_get_state(&state, client->adapter, client->addr);
+ switch (instance) {
+ case 0:
+ printk("au8522_decoder allocation failed\n");
+ return -EIO;
+ case 1:
+ /* new demod instance */
+ printk("au8522_decoder creating new instance...\n");
+ break;
+ default:
+ /* existing demod instance */
+ printk("au8522_decoder attaching to existing instance...\n");
+ break;
+ }
+
+ demod_config = kzalloc(sizeof(struct au8522_config), GFP_KERNEL);
+ demod_config->demod_address = 0x8e >> 1;
+
+ state->config = demod_config;
+ state->i2c = client->adapter;
+
+ sd = &state->sd;
+ v4l2_i2c_subdev_init(sd, client, &au8522_ops);
+
+ state->c = client;
+ state->vid_input = AU8522_COMPOSITE_CH1;
+ state->aud_input = AU8522_AUDIO_NONE;
+ state->id = 8522;
+ state->rev = 0;
+
+ /* Jam open the i2c gate to the tuner */
+ au8522_writereg(state, 0x106, 1);
+
+ return 0;
+}
+
+static int au8522_remove(struct i2c_client *client)
+{
+ struct v4l2_subdev *sd = i2c_get_clientdata(client);
+ v4l2_device_unregister_subdev(sd);
+ au8522_release_state(to_state(sd));
+ return 0;
+}
+
+static const struct i2c_device_id au8522_id[] = {
+ {"au8522", 0},
+ {}
+};
+
+MODULE_DEVICE_TABLE(i2c, au8522_id);
+
+static struct v4l2_i2c_driver_data v4l2_i2c_data = {
+ .name = "au8522",
+ .driverid = I2C_DRIVERID_AU8522,
+ .command = au8522_command,
+ .probe = au8522_probe,
+ .remove = au8522_remove,
+ .id_table = au8522_id,
+};