[media] adv7604: driver for the Analog Devices ADV7604 video decoder

Initial version of this driver.

The full datasheets are available from the Analog Devices website:

  http://ez.analog.com/docs/DOC-1545

Not all features of the receiver are supported by this driver for various
reasons. Most notably:

- No CEC support (the CEC API needs a lot more discussion)
- Only port A of the four HDMI input ports is implemented (our hardware only
  uses that port)
- No HDCP repeater support (we don't use that either)

And since there are some 600-odd pages of datasheet for this single device,
I'm sure that there are many more things missing, but this driver does work
well for our hardware.

Note that I am using the register addresses instead of register names: the
datasheet containing the register descriptions is organized by register
address. Using names would make the datasheet lookup very hard. An attempt
was made to try and document what is being done when registers are used
instead.

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

drivers/media/i2c/Kconfig

@@ -188,6 +188,18 @@ config VIDEO_ADV7183
 	  To compile this driver as a module, choose M here: the
 	  module will be called adv7183.
 
+config VIDEO_ADV7604
+	tristate "Analog Devices ADV7604 decoder"
+	depends on VIDEO_V4L2 && I2C && VIDEO_V4L2_SUBDEV_API
+	---help---
+	  Support for the Analog Devices ADV7604 video decoder.
+
+	  This is a Analog Devices Component/Graphics Digitizer
+	  with 4:1 Multiplexed HDMI Receiver.
+
+	  To compile this driver as a module, choose M here: the
+	  module will be called adv7604.
+
 config VIDEO_BT819
 	tristate "BT819A VideoStream decoder"
 	depends on VIDEO_V4L2 && I2C

drivers/media/i2c/Makefile

@@ -25,6 +25,7 @@ obj-$(CONFIG_VIDEO_ADV7180) += adv7180.o
 obj-$(CONFIG_VIDEO_ADV7183) += adv7183.o
 obj-$(CONFIG_VIDEO_ADV7343) += adv7343.o
 obj-$(CONFIG_VIDEO_ADV7393) += adv7393.o
+obj-$(CONFIG_VIDEO_ADV7604) += adv7604.o
 obj-$(CONFIG_VIDEO_VPX3220) += vpx3220.o
 obj-$(CONFIG_VIDEO_VS6624)  += vs6624.o
 obj-$(CONFIG_VIDEO_BT819) += bt819.o

include/media/adv7604.h

@@ -0,0 +1,153 @@
+/*
+ * adv7604 - Analog Devices ADV7604 video decoder driver
+ *
+ * Copyright 2012 Cisco Systems, Inc. and/or its affiliates. All rights reserved.
+ *
+ * This program is free software; you may redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; version 2 of the License.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
+ * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
+ * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ *
+ */
+
+#ifndef _ADV7604_
+#define _ADV7604_
+
+/* Analog input muxing modes (AFE register 0x02, [2:0]) */
+enum adv7604_ain_sel {
+	ADV7604_AIN1_2_3_NC_SYNC_1_2 = 0,
+	ADV7604_AIN4_5_6_NC_SYNC_2_1 = 1,
+	ADV7604_AIN7_8_9_NC_SYNC_3_1 = 2,
+	ADV7604_AIN10_11_12_NC_SYNC_4_1 = 3,
+	ADV7604_AIN9_4_5_6_SYNC_2_1 = 4,
+};
+
+/* Bus rotation and reordering (IO register 0x04, [7:5]) */
+enum adv7604_op_ch_sel {
+	ADV7604_OP_CH_SEL_GBR = 0,
+	ADV7604_OP_CH_SEL_GRB = 1,
+	ADV7604_OP_CH_SEL_BGR = 2,
+	ADV7604_OP_CH_SEL_RGB = 3,
+	ADV7604_OP_CH_SEL_BRG = 4,
+	ADV7604_OP_CH_SEL_RBG = 5,
+};
+
+/* Primary mode (IO register 0x01, [3:0]) */
+enum adv7604_prim_mode {
+	ADV7604_PRIM_MODE_COMP = 1,
+	ADV7604_PRIM_MODE_RGB = 2,
+	ADV7604_PRIM_MODE_HDMI_COMP = 5,
+	ADV7604_PRIM_MODE_HDMI_GR = 6,
+};
+
+/* Input Color Space (IO register 0x02, [7:4]) */
+enum adv7604_inp_color_space {
+	ADV7604_INP_COLOR_SPACE_LIM_RGB = 0,
+	ADV7604_INP_COLOR_SPACE_FULL_RGB = 1,
+	ADV7604_INP_COLOR_SPACE_LIM_YCbCr_601 = 2,
+	ADV7604_INP_COLOR_SPACE_LIM_YCbCr_709 = 3,
+	ADV7604_INP_COLOR_SPACE_XVYCC_601 = 4,
+	ADV7604_INP_COLOR_SPACE_XVYCC_709 = 5,
+	ADV7604_INP_COLOR_SPACE_FULL_YCbCr_601 = 6,
+	ADV7604_INP_COLOR_SPACE_FULL_YCbCr_709 = 7,
+	ADV7604_INP_COLOR_SPACE_AUTO = 0xf,
+};
+
+/* Select output format (IO register 0x03, [7:0]) */
+enum adv7604_op_format_sel {
+	ADV7604_OP_FORMAT_SEL_SDR_ITU656_8 = 0x00,
+	ADV7604_OP_FORMAT_SEL_SDR_ITU656_10 = 0x01,
+	ADV7604_OP_FORMAT_SEL_SDR_ITU656_12_MODE0 = 0x02,
+	ADV7604_OP_FORMAT_SEL_SDR_ITU656_12_MODE1 = 0x06,
+	ADV7604_OP_FORMAT_SEL_SDR_ITU656_12_MODE2 = 0x0a,
+	ADV7604_OP_FORMAT_SEL_DDR_422_8 = 0x20,
+	ADV7604_OP_FORMAT_SEL_DDR_422_10 = 0x21,
+	ADV7604_OP_FORMAT_SEL_DDR_422_12_MODE0 = 0x22,
+	ADV7604_OP_FORMAT_SEL_DDR_422_12_MODE1 = 0x23,
+	ADV7604_OP_FORMAT_SEL_DDR_422_12_MODE2 = 0x24,
+	ADV7604_OP_FORMAT_SEL_SDR_444_24 = 0x40,
+	ADV7604_OP_FORMAT_SEL_SDR_444_30 = 0x41,
+	ADV7604_OP_FORMAT_SEL_SDR_444_36_MODE0 = 0x42,
+	ADV7604_OP_FORMAT_SEL_DDR_444_24 = 0x60,
+	ADV7604_OP_FORMAT_SEL_DDR_444_30 = 0x61,
+	ADV7604_OP_FORMAT_SEL_DDR_444_36 = 0x62,
+	ADV7604_OP_FORMAT_SEL_SDR_ITU656_16 = 0x80,
+	ADV7604_OP_FORMAT_SEL_SDR_ITU656_20 = 0x81,
+	ADV7604_OP_FORMAT_SEL_SDR_ITU656_24_MODE0 = 0x82,
+	ADV7604_OP_FORMAT_SEL_SDR_ITU656_24_MODE1 = 0x86,
+	ADV7604_OP_FORMAT_SEL_SDR_ITU656_24_MODE2 = 0x8a,
+};
+
+/* Platform dependent definition */
+struct adv7604_platform_data {
+	/* connector - HDMI or DVI? */
+	unsigned connector_hdmi:1;
+
+	/* DIS_PWRDNB: 1 if the PWRDNB pin is unused and unconnected */
+	unsigned disable_pwrdnb:1;
+
+	/* DIS_CABLE_DET_RST: 1 if the 5V pins are unused and unconnected */
+	unsigned disable_cable_det_rst:1;
+
+	/* Analog input muxing mode */
+	enum adv7604_ain_sel ain_sel;
+
+	/* Bus rotation and reordering */
+	enum adv7604_op_ch_sel op_ch_sel;
+
+	/* Primary mode */
+	enum adv7604_prim_mode prim_mode;
+
+	/* Select output format */
+	enum adv7604_op_format_sel op_format_sel;
+
+	/* IO register 0x02 */
+	unsigned alt_gamma:1;
+	unsigned op_656_range:1;
+	unsigned rgb_out:1;
+	unsigned alt_data_sat:1;
+
+	/* IO register 0x05 */
+	unsigned blank_data:1;
+	unsigned insert_av_codes:1;
+	unsigned replicate_av_codes:1;
+	unsigned invert_cbcr:1;
+
+	/* IO register 0x30 */
+	unsigned output_bus_lsb_to_msb:1;
+
+	/* Free run */
+	unsigned hdmi_free_run_mode;
+
+	/* i2c addresses: 0 == use default */
+	u8 i2c_avlink;
+	u8 i2c_cec;
+	u8 i2c_infoframe;
+	u8 i2c_esdp;
+	u8 i2c_dpp;
+	u8 i2c_afe;
+	u8 i2c_repeater;
+	u8 i2c_edid;
+	u8 i2c_hdmi;
+	u8 i2c_test;
+	u8 i2c_cp;
+	u8 i2c_vdp;
+};
+
+#define V4L2_CID_ADV_RX_ANALOG_SAMPLING_PHASE	(V4L2_CID_DV_CLASS_BASE + 0x1000)
+#define V4L2_CID_ADV_RX_FREE_RUN_COLOR_MANUAL	(V4L2_CID_DV_CLASS_BASE + 0x1001)
+#define V4L2_CID_ADV_RX_FREE_RUN_COLOR		(V4L2_CID_DV_CLASS_BASE + 0x1002)
+
+/* notify events */
+#define ADV7604_HOTPLUG		1
+#define ADV7604_FMT_CHANGE	2
+
+#endif

include/media/v4l2-chip-ident.h

@@ -183,6 +183,9 @@ enum {
 	/* module adv7393: just ident 7393 */
 	V4L2_IDENT_ADV7393 = 7393,
 
+	/* module adv7604: just ident 7604 */
+	V4L2_IDENT_ADV7604 = 7604,
+
 	/* module saa7706h: just ident 7706 */
 	V4L2_IDENT_SAA7706H = 7706,