From: Santiago Nunez-Corrales <santiago.nunez@xxxxxxxxxxxx>
This patch provides the implementation of the TVP7002 decoder
driver for DM365. Implemented using the V4L2 DV presets API.
Removed shadow register values.
Signed-off-by: Santiago Nunez-Corrales <santiago.nunez@xxxxxxxxxxxx>
---
drivers/media/video/tvp7002.c | 1331 +++++++++++++++++++++++++++++++++++++++++
1 files changed, 1331 insertions(+), 0 deletions(-)
create mode 100644 drivers/media/video/tvp7002.c
diff --git a/drivers/media/video/tvp7002.c b/drivers/media/video/tvp7002.c
new file mode 100644
index 0000000..bce4d8a
--- /dev/null
+++ b/drivers/media/video/tvp7002.c
@@ -0,0 +1,1331 @@
+/* Texas Instruments Triple 8-/10-BIT 165-/110-MSPS Video and Graphics
+ * Digitizer with Horizontal PLL registers
+ *
+ * Copyright (C) 2009 Texas Instruments Inc
+ * Author: Santiago Nunez-Corrales <santiago.nunez@xxxxxxxxxxxx>
+ *
+ * This code is partially based upon the TVP5150 driver
+ * written by Mauro Carvalho Chehab (mchehab@xxxxxxxxxxxxx),
+ * the TVP514x driver written by Vaibhav Hiremath <hvaibhav@xxxxxx>
+ * and the TVP7002 driver in the TI LSP 2.10.00.14. Revisions by
+ * Muralidharan Karicheri and Snehaprabha Narnakaje (TI).
+ *
+ * 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., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+#include <linux/delay.h>
+#include <linux/i2c.h>
+#include <linux/videodev2.h>
+#include <media/tvp7002.h>
+#include <media/v4l2-device.h>
+#include <media/v4l2-chip-ident.h>
+#include "tvp7002_reg.h"
+
+MODULE_DESCRIPTION("TI TVP7002 Video and Graphics Digitizer driver");
+MODULE_AUTHOR("Santiago Nunez-Corrales <santiago.nunez@xxxxxxxxxxxx>");
+MODULE_LICENSE("GPL");
+
+/* Module Name */
+#define TVP7002_MODULE_NAME "tvp7002"
+
+/* I2C retry attempts */
+#define I2C_RETRY_COUNT (5)
+
+/* End of registers */
+#define TVP7002_EOR 0x5c
+
+/* Read write definition for registers */
+#define TVP7002_READ 0
+#define TVP7002_WRITE 1
+#define TVP7002_RESERVED 2
+
+/* Indexes for digital video presets */
+#define INDEX_720P60 0
+#define INDEX_1080I60 1
+#define INDEX_1080I50 2
+#define INDEX_720P50 3
+#define INDEX_1080P60 4
+#define INDEX_480P59_94 5
+#define INDEX_576P50 6
+
+/* Interlaced vs progressive mask and shift */
+#define TVP7002_IP_SHIFT 5
+#define TVP7002_INPR_MASK (0x01 << TVP7002_IP_SHIFT)
+
+/* Shift for CPL and LPF registers */
+#define TVP7002_CL_SHIFT 8
+#define TVP7002_CL_MASK 0x0f
+
+/* Debug functions */
+static int debug;
+module_param(debug, bool, 0644);
+MODULE_PARM_DESC(debug, "Debug level (0-2)");
+
+/* Structure for register values */
+struct i2c_reg_value {
+ u8 reg;
+ u8 value;
+ u8 type;
+};
+
+/*
+ * Register default values (according to tvp7002 datasheet)
+ * In the case of read-only registers, the value (0xff) is
+ * never written. R/W functionality is controlled by the
+ * writable bit in the register struct definition.
+ */
+static const struct i2c_reg_value tvp7002_init_default[] = {
+ { TVP7002_CHIP_REV, 0xff, TVP7002_READ },
+ { TVP7002_HPLL_FDBK_DIV_MSBS, 0x67, TVP7002_WRITE },
+ { TVP7002_HPLL_FDBK_DIV_LSBS, 0x20, TVP7002_WRITE },
+ { TVP7002_HPLL_CRTL, 0xa0, TVP7002_WRITE },
+ { TVP7002_HPLL_PHASE_SEL, 0x80, TVP7002_WRITE },
+ { TVP7002_CLAMP_START, 0x32, TVP7002_WRITE },
+ { TVP7002_CLAMP_W, 0x20, TVP7002_WRITE },
+ { TVP7002_HSYNC_OUT_W, 0x60, TVP7002_WRITE },
+ { TVP7002_B_FINE_GAIN, 0x00, TVP7002_WRITE },
+ { TVP7002_G_FINE_GAIN, 0x00, TVP7002_WRITE },
+ { TVP7002_R_FINE_GAIN, 0x00, TVP7002_WRITE },
+ { TVP7002_B_FINE_OFF_MSBS, 0x80, TVP7002_WRITE },
+ { TVP7002_G_FINE_OFF_MSBS, 0x80, TVP7002_WRITE },
+ { TVP7002_R_FINE_OFF_MSBS, 0x80, TVP7002_WRITE },
+ { TVP7002_SYNC_CTL_1, 0x20, TVP7002_WRITE },
+ { TVP7002_HPLL_AND_CLAMP_CTL, 0x2e, TVP7002_WRITE },
+ { TVP7002_SYNC_ON_G_THRS, 0x5d, TVP7002_WRITE },
+ { TVP7002_SYNC_SEPARATOR_THRS, 0x47, TVP7002_WRITE },
+ { TVP7002_HPLL_PRE_COAST, 0x00, TVP7002_WRITE },
+ { TVP7002_HPLL_POST_COAST, 0x00, TVP7002_WRITE },
+ { TVP7002_SYNC_DETECT_STAT, 0xff, TVP7002_READ },
+ { TVP7002_OUT_FORMATTER, 0x47, TVP7002_WRITE },
+ { TVP7002_MISC_CTL_1, 0x01, TVP7002_WRITE },
+ { TVP7002_MISC_CTL_2, 0x00, TVP7002_WRITE },
+ { TVP7002_MISC_CTL_3, 0x01, TVP7002_WRITE },
+ { TVP7002_IN_MUX_SEL_1, 0x00, TVP7002_WRITE },
+ { TVP7002_IN_MUX_SEL_2, 0x67, TVP7002_WRITE },
+ { TVP7002_B_AND_G_COARSE_GAIN, 0x77, TVP7002_WRITE },
+ { TVP7002_R_COARSE_GAIN, 0x07, TVP7002_WRITE },
+ { TVP7002_FINE_OFF_LSBS, 0x00, TVP7002_WRITE },
+ { TVP7002_B_COARSE_OFF, 0x10, TVP7002_WRITE },
+ { TVP7002_G_COARSE_OFF, 0x10, TVP7002_WRITE },
+ { TVP7002_R_COARSE_OFF, 0x10, TVP7002_WRITE },
+ { TVP7002_HSOUT_OUT_START, 0x08, TVP7002_WRITE },
+ { TVP7002_MISC_CTL_4, 0x00, TVP7002_WRITE },
+ { TVP7002_B_DGTL_ALC_OUT_LSBS, 0xff, TVP7002_READ },
+ { TVP7002_G_DGTL_ALC_OUT_LSBS, 0xff, TVP7002_READ },
+ { TVP7002_R_DGTL_ALC_OUT_LSBS, 0xff, TVP7002_READ },
+ { TVP7002_AUTO_LVL_CTL_ENABLE, 0x80, TVP7002_WRITE },
+ { TVP7002_DGTL_ALC_OUT_MSBS, 0xff, TVP7002_READ },
+ { TVP7002_AUTO_LVL_CTL_FILTER, 0x53, TVP7002_WRITE },
+ { 0x29, 0x08, TVP7002_RESERVED },
+ { TVP7002_FINE_CLAMP_CTL, 0x07, TVP7002_WRITE },
+ /* PWR_CTL is controlled only by the probe and reset functions */
+ { TVP7002_PWR_CTL, 0x00, TVP7002_RESERVED },
+ { TVP7002_ADC_SETUP, 0x50, TVP7002_WRITE },
+ { TVP7002_COARSE_CLAMP_CTL, 0x00, TVP7002_WRITE },
+ { TVP7002_SOG_CLAMP, 0x80, TVP7002_WRITE },
+ { TVP7002_RGB_COARSE_CLAMP_CTL, 0x00, TVP7002_WRITE },
+ { TVP7002_SOG_COARSE_CLAMP_CTL, 0x04, TVP7002_WRITE },
+ { TVP7002_ALC_PLACEMENT, 0x5a, TVP7002_WRITE },
+ { 0x32, 0x18, TVP7002_RESERVED },
+ { 0x33, 0x60, TVP7002_RESERVED },
+ { TVP7002_MVIS_STRIPPER_W, 0xff, TVP7002_RESERVED },
+ { TVP7002_VSYNC_ALGN, 0x10, TVP7002_WRITE },
+ { TVP7002_SYNC_BYPASS, 0x00, TVP7002_WRITE },
+ { TVP7002_L_FRAME_STAT_LSBS, 0xff, TVP7002_READ },
+ { TVP7002_L_FRAME_STAT_MSBS, 0xff, TVP7002_READ },
+ { TVP7002_CLK_L_STAT_LSBS, 0xff, TVP7002_READ },
+ { TVP7002_CLK_L_STAT_MSBS, 0xff, TVP7002_READ },
+ { TVP7002_HSYNC_W, 0xff, TVP7002_READ },
+ { TVP7002_VSYNC_W, 0xff, TVP7002_READ },
+ { TVP7002_L_LENGTH_TOL, 0x03, TVP7002_WRITE },
+ { 0x3e, 0x60, TVP7002_RESERVED },
+ { TVP7002_VIDEO_BWTH_CTL, 0x01, TVP7002_WRITE },
+ { TVP7002_AVID_START_PIXEL_LSBS, 0x01, TVP7002_WRITE },
+ { TVP7002_AVID_START_PIXEL_MSBS, 0x2c, TVP7002_WRITE },
+ { TVP7002_AVID_STOP_PIXEL_LSBS, 0x06, TVP7002_WRITE },
+ { TVP7002_AVID_STOP_PIXEL_MSBS, 0x2c, TVP7002_WRITE },
+ { TVP7002_VBLK_F_0_START_L_OFF, 0x05, TVP7002_WRITE },
+ { TVP7002_VBLK_F_1_START_L_OFF, 0x00, TVP7002_WRITE },
+ { TVP7002_VBLK_F_0_DURATION, 0x1e, TVP7002_WRITE },
+ { TVP7002_VBLK_F_1_DURATION, 0x00, TVP7002_WRITE },
+ { TVP7002_FBIT_F_0_START_L_OFF, 0x00, TVP7002_WRITE },
+ { TVP7002_FBIT_F_1_START_L_OFF, 0x00, TVP7002_WRITE },
+ { TVP7002_YUV_Y_G_COEF_LSBS, 0xe3, TVP7002_WRITE },
+ { TVP7002_YUV_Y_G_COEF_MSBS, 0x16, TVP7002_WRITE },
+ { TVP7002_YUV_Y_B_COEF_LSBS, 0x4f, TVP7002_WRITE },
+ { TVP7002_YUV_Y_B_COEF_MSBS, 0x02, TVP7002_WRITE },
+ { TVP7002_YUV_Y_R_COEF_LSBS, 0xce, TVP7002_WRITE },
+ { TVP7002_YUV_Y_R_COEF_MSBS, 0x06, TVP7002_WRITE },
+ { TVP7002_YUV_U_G_COEF_LSBS, 0xab, TVP7002_WRITE },
+ { TVP7002_YUV_U_G_COEF_MSBS, 0xf3, TVP7002_WRITE },
+ { TVP7002_YUV_U_B_COEF_LSBS, 0x00, TVP7002_WRITE },
+ { TVP7002_YUV_U_B_COEF_MSBS, 0x10, TVP7002_WRITE },
+ { TVP7002_YUV_U_R_COEF_LSBS, 0x55, TVP7002_WRITE },
+ { TVP7002_YUV_U_R_COEF_MSBS, 0xfc, TVP7002_WRITE },
+ { TVP7002_YUV_V_G_COEF_LSBS, 0x78, TVP7002_WRITE },
+ { TVP7002_YUV_V_G_COEF_MSBS, 0xf1, TVP7002_WRITE },
+ { TVP7002_YUV_V_B_COEF_LSBS, 0x88, TVP7002_WRITE },
+ { TVP7002_YUV_V_B_COEF_MSBS, 0xfe, TVP7002_WRITE },
+ { TVP7002_YUV_V_R_COEF_LSBS, 0x00, TVP7002_WRITE },
+ { TVP7002_YUV_V_R_COEF_MSBS, 0x10, TVP7002_WRITE },
+ /* This signals end of register values */
+ { TVP7002_EOR, 0xff, TVP7002_RESERVED }
+};
+
+/* Register parameters for 480P */
+static const struct i2c_reg_value tvp7002_parms_480P[] = {
+ { TVP7002_HPLL_FDBK_DIV_MSBS, 0x35, TVP7002_WRITE },
+ { TVP7002_HPLL_FDBK_DIV_LSBS, 0x0a, TVP7002_WRITE },
+ { TVP7002_HPLL_CRTL, 0x02, TVP7002_WRITE },
+ { TVP7002_HPLL_PHASE_SEL, 0x14, TVP7002_WRITE },
+ { TVP7002_AVID_START_PIXEL_LSBS, 0x91, TVP7002_WRITE },
+ { TVP7002_AVID_START_PIXEL_MSBS, 0x00, TVP7002_WRITE },
+ { TVP7002_AVID_STOP_PIXEL_LSBS, 0x0B, TVP7002_WRITE },
+ { TVP7002_AVID_STOP_PIXEL_MSBS, 0x00, TVP7002_WRITE },
+ { TVP7002_VBLK_F_0_START_L_OFF, 0x03, TVP7002_WRITE },
+ { TVP7002_VBLK_F_1_START_L_OFF, 0x01, TVP7002_WRITE },
+ { TVP7002_VBLK_F_0_DURATION, 0x13, TVP7002_WRITE },
+ { TVP7002_VBLK_F_1_DURATION, 0x13, TVP7002_WRITE },
+ { TVP7002_ALC_PLACEMENT, 0x18, TVP7002_WRITE },
+ { TVP7002_CLAMP_START, 0x06, TVP7002_WRITE },
+ { TVP7002_CLAMP_W, 0x10, TVP7002_WRITE },
+ { TVP7002_HPLL_PRE_COAST, 0x03, TVP7002_WRITE },
+ { TVP7002_HPLL_POST_COAST, 0x03, TVP7002_WRITE },
+ { TVP7002_EOR, 0xff, TVP7002_RESERVED }
+};
+
+/* Register parameters for 576P */
+static const struct i2c_reg_value tvp7002_parms_576P[] = {
+ { TVP7002_HPLL_FDBK_DIV_MSBS, 0x36, TVP7002_WRITE },
+ { TVP7002_HPLL_FDBK_DIV_LSBS, 0x00, TVP7002_WRITE },
+ { TVP7002_HPLL_CRTL, 0x18, TVP7002_WRITE },
+ { TVP7002_HPLL_PHASE_SEL, 0x14, TVP7002_WRITE },
+ { TVP7002_AVID_START_PIXEL_LSBS, 0x9B, TVP7002_WRITE },
+ { TVP7002_AVID_START_PIXEL_MSBS, 0x00, TVP7002_WRITE },
+ { TVP7002_AVID_STOP_PIXEL_LSBS, 0x0F, TVP7002_WRITE },
+ { TVP7002_AVID_STOP_PIXEL_MSBS, 0x00, TVP7002_WRITE },
+ { TVP7002_VBLK_F_0_START_L_OFF, 0x00, TVP7002_WRITE },
+ { TVP7002_VBLK_F_1_START_L_OFF, 0x00, TVP7002_WRITE },
+ { TVP7002_VBLK_F_0_DURATION, 0x2D, TVP7002_WRITE },
+ { TVP7002_VBLK_F_1_DURATION, 0x00, TVP7002_WRITE },
+ { TVP7002_ALC_PLACEMENT, 0x18, TVP7002_WRITE },
+ { TVP7002_CLAMP_START, 0x06, TVP7002_WRITE },
+ { TVP7002_CLAMP_W, 0x10, TVP7002_WRITE },
+ { TVP7002_HPLL_PRE_COAST, 0x03, TVP7002_WRITE },
+ { TVP7002_HPLL_POST_COAST, 0x03, TVP7002_WRITE },
+ { TVP7002_EOR, 0xff, TVP7002_RESERVED }
+};
+
+/* Register parameters for 1080I60 */
+static const struct i2c_reg_value tvp7002_parms_1080I60[] = {
+ { TVP7002_HPLL_FDBK_DIV_MSBS, 0x89, TVP7002_WRITE },
+ { TVP7002_HPLL_FDBK_DIV_LSBS, 0x08, TVP7002_WRITE },
+ { TVP7002_HPLL_CRTL, 0x98, TVP7002_WRITE },
+ { TVP7002_HPLL_PHASE_SEL, 0x14, TVP7002_WRITE },
+ { TVP7002_AVID_START_PIXEL_LSBS, 0x06, TVP7002_WRITE },
+ { TVP7002_AVID_START_PIXEL_MSBS, 0x01, TVP7002_WRITE },
+ { TVP7002_AVID_STOP_PIXEL_LSBS, 0x8a, TVP7002_WRITE },
+ { TVP7002_AVID_STOP_PIXEL_MSBS, 0x08, TVP7002_WRITE },
+ { TVP7002_VBLK_F_0_START_L_OFF, 0x02, TVP7002_WRITE },
+ { TVP7002_VBLK_F_1_START_L_OFF, 0x02, TVP7002_WRITE },
+ { TVP7002_VBLK_F_0_DURATION, 0x16, TVP7002_WRITE },
+ { TVP7002_VBLK_F_1_DURATION, 0x17, TVP7002_WRITE },
+ { TVP7002_ALC_PLACEMENT, 0x5a, TVP7002_WRITE },
+ { TVP7002_CLAMP_START, 0x32, TVP7002_WRITE },
+ { TVP7002_CLAMP_W, 0x20, TVP7002_WRITE },
+ { TVP7002_HPLL_PRE_COAST, 0x01, TVP7002_WRITE },
+ { TVP7002_HPLL_POST_COAST, 0x00, TVP7002_WRITE },
+ { TVP7002_EOR, 0xff, TVP7002_RESERVED }
+};
+
+/* Register parameters for 1080P60 */
+static const struct i2c_reg_value tvp7002_parms_1080P60[] = {
+ { TVP7002_HPLL_FDBK_DIV_MSBS, 0x89, TVP7002_WRITE },
+ { TVP7002_HPLL_FDBK_DIV_LSBS, 0x08, TVP7002_WRITE },
+ { TVP7002_HPLL_CRTL, 0xE0, TVP7002_WRITE },
+ { TVP7002_HPLL_PHASE_SEL, 0x14, TVP7002_WRITE },
+ { TVP7002_AVID_START_PIXEL_LSBS, 0x06, TVP7002_WRITE },
+ { TVP7002_AVID_START_PIXEL_MSBS, 0x01, TVP7002_WRITE },
+ { TVP7002_AVID_STOP_PIXEL_LSBS, 0x8a, TVP7002_WRITE },
+ { TVP7002_AVID_STOP_PIXEL_MSBS, 0x08, TVP7002_WRITE },
+ { TVP7002_VBLK_F_0_START_L_OFF, 0x02, TVP7002_WRITE },
+ { TVP7002_VBLK_F_1_START_L_OFF, 0x02, TVP7002_WRITE },
+ { TVP7002_VBLK_F_0_DURATION, 0x16, TVP7002_WRITE },
+ { TVP7002_VBLK_F_1_DURATION, 0x17, TVP7002_WRITE },
+ { TVP7002_ALC_PLACEMENT, 0x5a, TVP7002_WRITE },
+ { TVP7002_CLAMP_START, 0x32, TVP7002_WRITE },
+ { TVP7002_CLAMP_W, 0x20, TVP7002_WRITE },
+ { TVP7002_HPLL_PRE_COAST, 0x01, TVP7002_WRITE },
+ { TVP7002_HPLL_POST_COAST, 0x00, TVP7002_WRITE },
+ { TVP7002_EOR, 0xff, TVP7002_RESERVED }
+};
+
+/* Register parameters for 1080I50 */
+static const struct i2c_reg_value tvp7002_parms_1080I50[] = {
+ { TVP7002_HPLL_FDBK_DIV_MSBS, 0xa5, TVP7002_WRITE },
+ { TVP7002_HPLL_FDBK_DIV_LSBS, 0x00, TVP7002_WRITE },
+ { TVP7002_HPLL_CRTL, 0x98, TVP7002_WRITE },
+ { TVP7002_HPLL_PHASE_SEL, 0x14, TVP7002_WRITE },
+ { TVP7002_AVID_START_PIXEL_LSBS, 0x06, TVP7002_WRITE },
+ { TVP7002_AVID_START_PIXEL_MSBS, 0x01, TVP7002_WRITE },
+ { TVP7002_AVID_STOP_PIXEL_LSBS, 0x8a, TVP7002_WRITE },
+ { TVP7002_AVID_STOP_PIXEL_MSBS, 0x08, TVP7002_WRITE },
+ { TVP7002_VBLK_F_0_START_L_OFF, 0x02, TVP7002_WRITE },
+ { TVP7002_VBLK_F_1_START_L_OFF, 0x02, TVP7002_WRITE },
+ { TVP7002_VBLK_F_0_DURATION, 0x16, TVP7002_WRITE },
+ { TVP7002_VBLK_F_1_DURATION, 0x17, TVP7002_WRITE },
+ { TVP7002_ALC_PLACEMENT, 0x5a, TVP7002_WRITE },
+ { TVP7002_CLAMP_START, 0x32, TVP7002_WRITE },
+ { TVP7002_CLAMP_W, 0x20, TVP7002_WRITE },
+ { TVP7002_HPLL_PRE_COAST, 0x01, TVP7002_WRITE },
+ { TVP7002_HPLL_POST_COAST, 0x00, TVP7002_WRITE },
+ { TVP7002_EOR, 0xff, TVP7002_RESERVED }
+};
+
+/* Register parameters for 720P60 */
+static const struct i2c_reg_value tvp7002_parms_720P60[] = {
+ { TVP7002_HPLL_FDBK_DIV_MSBS, 0x67, TVP7002_WRITE },
+ { TVP7002_HPLL_FDBK_DIV_LSBS, 0x02, TVP7002_WRITE },
+ { TVP7002_HPLL_CRTL, 0xa0, TVP7002_WRITE },
+ { TVP7002_HPLL_PHASE_SEL, 0x16, TVP7002_WRITE },
+ { TVP7002_AVID_START_PIXEL_LSBS, 0x47, TVP7002_WRITE },
+ { TVP7002_AVID_START_PIXEL_MSBS, 0x01, TVP7002_WRITE },
+ { TVP7002_AVID_STOP_PIXEL_LSBS, 0x4B, TVP7002_WRITE },
+ { TVP7002_AVID_STOP_PIXEL_MSBS, 0x06, TVP7002_WRITE },
+ { TVP7002_VBLK_F_0_START_L_OFF, 0x05, TVP7002_WRITE },
+ { TVP7002_VBLK_F_1_START_L_OFF, 0x00, TVP7002_WRITE },
+ { TVP7002_VBLK_F_0_DURATION, 0x2D, TVP7002_WRITE },
+ { TVP7002_VBLK_F_1_DURATION, 0x00, TVP7002_WRITE },
+ { TVP7002_ALC_PLACEMENT, 0x5a, TVP7002_WRITE },
+ { TVP7002_CLAMP_START, 0x32, TVP7002_WRITE },
+ { TVP7002_CLAMP_W, 0x20, TVP7002_WRITE },
+ { TVP7002_HPLL_PRE_COAST, 0x00, TVP7002_WRITE },
+ { TVP7002_HPLL_POST_COAST, 0x00, TVP7002_WRITE },
+ { TVP7002_EOR, 0xff, TVP7002_RESERVED }
+};
+
+/* Register parameters for 720P50 */
+static const struct i2c_reg_value tvp7002_parms_720P50[] = {
+ { TVP7002_HPLL_FDBK_DIV_MSBS, 0x7b, TVP7002_WRITE },
+ { TVP7002_HPLL_FDBK_DIV_LSBS, 0x0c, TVP7002_WRITE },
+ { TVP7002_HPLL_CRTL, 0x98, TVP7002_WRITE },
+ { TVP7002_HPLL_PHASE_SEL, 0x16, TVP7002_WRITE },
+ { TVP7002_AVID_START_PIXEL_LSBS, 0x47, TVP7002_WRITE },
+ { TVP7002_AVID_START_PIXEL_MSBS, 0x01, TVP7002_WRITE },
+ { TVP7002_AVID_STOP_PIXEL_LSBS, 0x4B, TVP7002_WRITE },
+ { TVP7002_AVID_STOP_PIXEL_MSBS, 0x06, TVP7002_WRITE },
+ { TVP7002_VBLK_F_0_START_L_OFF, 0x05, TVP7002_WRITE },
+ { TVP7002_VBLK_F_1_START_L_OFF, 0x00, TVP7002_WRITE },
+ { TVP7002_VBLK_F_0_DURATION, 0x2D, TVP7002_WRITE },
+ { TVP7002_VBLK_F_1_DURATION, 0x00, TVP7002_WRITE },
+ { TVP7002_ALC_PLACEMENT, 0x5a, TVP7002_WRITE },
+ { TVP7002_CLAMP_START, 0x32, TVP7002_WRITE },
+ { TVP7002_CLAMP_W, 0x20, TVP7002_WRITE },
+ { TVP7002_HPLL_PRE_COAST, 0x01, TVP7002_WRITE },
+ { TVP7002_HPLL_POST_COAST, 0x00, TVP7002_WRITE },
+ { TVP7002_EOR, 0xff, TVP7002_RESERVED }
+};
+
+/* Struct list for available formats */
+static const struct v4l2_fmtdesc tvp7002_fmt_list[] = {
+ {
+ .index = 0,
+ .type = V4L2_BUF_TYPE_VIDEO_CAPTURE,
+ .flags = 0,
+ .description = "8-bit UYVY 4:2:2 Format",
+ .pixelformat = V4L2_PIX_FMT_UYVY,
+ },
+};
+
+#define NUM_FORMATS ARRAY_SIZE(tvp7002_fmt_list)
+
+/* Preset definition for handling device operation */
+struct tvp7002_preset_definition {
+ struct v4l2_dv_enum_preset p_data;
+ const struct i2c_reg_value *p_settings;
+ enum v4l2_colorspace color_space;
+ enum v4l2_field scanmode;
+ u16 progressive;
+ u16 lines_per_frame;
+ u16 cpl_min;
+ u16 cpl_max;
+};
+
+/* Struct list for digital video presets */
+static const struct tvp7002_preset_definition tvp7002_presets[] = {
+ {
+ {
+ .index = INDEX_720P60,
+ .preset = V4L2_DV_720P60,
+ .name = "720P-60",
+ .width = 1280,
+ .height = 720,
+ },
+ tvp7002_parms_720P60,
+ V4L2_COLORSPACE_REC709,
+ V4L2_FIELD_SEQ_TB,
+ 1,
+ 0x2EE,
+ 135,
+ 153
+ },
+ {
+ {
+ .index = INDEX_1080I60,
+ .preset = V4L2_DV_1080I60,
+ .name = "1080I-30",
+ .width = 1920,
+ .height = 1080,
+ },
+ tvp7002_parms_1080I60,
+ V4L2_COLORSPACE_REC709,
+ V4L2_FIELD_INTERLACED,
+ 0,
+ 0x465,
+ 181,
+ 205
+ },
+ {
+ {
+ .index = INDEX_1080I50,
+ .preset = V4L2_DV_1080I50,
+ .name = "1080I-25",
+ .width = 1920,
+ .height = 1080,
+ },
+ tvp7002_parms_1080I50,
+ V4L2_COLORSPACE_REC709,
+ V4L2_FIELD_INTERLACED,
+ 0,
+ 0x465,
+ 217,
+ 245
+ },
+ {
+ {
+ .index = INDEX_720P50,
+ .preset = V4L2_DV_720P50,
+ .name = "720P-50",
+ .width = 1280,
+ .height = 720,
+ },
+ tvp7002_parms_720P50,
+ V4L2_COLORSPACE_REC709,
+ V4L2_FIELD_SEQ_TB,
+ 1,
+ 0x2EE,
+ 163,
+ 183
+ },
+ {
+ {
+ .index = INDEX_1080P60,
+ .preset = V4L2_DV_1080P60,
+ .name = "1080P-60",
+ .width = 1920,
+ .height = 1080,
+ },
+ tvp7002_parms_1080P60,
+ V4L2_COLORSPACE_REC709,
+ V4L2_FIELD_SEQ_TB,
+ 1,
+ 0x465,
+ 90,
+ 102
+ },
+ {
+ {
+ .index = INDEX_480P59_94,
+ .preset = V4L2_DV_480P59_94,
+ .name = "480P-60",
+ .width = 720,
+ .height = 480,
+ },
+ tvp7002_parms_480P,
+ V4L2_COLORSPACE_SMPTE170M,
+ V4L2_FIELD_SEQ_TB,
+ 1,
+ 0x20D,
+ 0xffff,
+ 0xffff
+ },
+ {
+ {
+ .index = INDEX_576P50,
+ .preset = V4L2_DV_576P50,
+ .name = "576P-50",
+ .width = 720,
+ .height = 576,
+ },
+ tvp7002_parms_576P,
+ V4L2_COLORSPACE_SMPTE170M,
+ V4L2_FIELD_SEQ_TB,
+ 1,
+ 0x271,
+ 0xffff,
+ 0xffff
+ }
+};
+
+#define NUM_PRESETS ARRAY_SIZE(tvp7002_presets)
+
+/* Device definition */
+struct tvp7002 {
+ struct v4l2_subdev sd;
+ const struct tvp7002_config *pdata;
+
+ int ver;
+ int streaming;
+
+ struct v4l2_pix_format pix;
+ int current_preset;
+ u8 gain;
+};
+
+/*
+ * to_tvp7002 - Obtain device handler TVP7002
+ * @sd: ptr to v4l2_subdev struct
+ *
+ * Returns device handler tvp7002.
+ */
+static inline struct tvp7002 *to_tvp7002(struct v4l2_subdev *sd)
+{
+ return container_of(sd, struct tvp7002, sd);
+}
+
+/*
+ * tvp7002_read - Read a value from a register in an TVP7002
+ * @sd: ptr to v4l2_subdev struct
+ * @reg: TVP7002 register address
+ * @dst: pointer to 8-bit destination
+ *
+ * Returns value read if successful, or non-zero (-1) otherwise.
+ */
+static int tvp7002_read(struct v4l2_subdev *sd, u8 addr, u8 *dst)
+{
+ struct i2c_client *c = v4l2_get_subdevdata(sd);
+ int retry;
+ int error;
+
+ for (retry = 0; retry < I2C_RETRY_COUNT; retry++) {
+ error = i2c_smbus_read_byte_data(c, addr);
+
+ if (error >= 0) {
+ *dst = (u8)error;
+ return 0;
+ }
+
+ msleep_interruptible(10);
+ }
+ v4l2_err(sd, "TVP7002 read error %d\n", error);
+ return error;
+}
+
+/*
+ * tvp7002_read_err() - Read a register value with error code
+ * @sd: pointer to standard V4L2 sub-device structure
+ * @reg: destination register
+ * @val: value to be read
+ * @error: pointer to error value
+ *
+ * Read a value in a register and save error value in pointer.
+ * Also update the register table if successful
+ */
+static inline void tvp7002_read_err(struct v4l2_subdev *sd, u8 reg,
+ u8 *dst, int *err)
+{
+ if (!*err)
+ *err = tvp7002_read(sd, reg, dst);
+}
+
+/*
+ * tvp7002_write() - Write a value to a register in TVP7002
+ * @sd: ptr to v4l2_subdev struct
+ * @addr: TVP7002 register address
+ * @value: value to be written to the register
+ *
+ * Write a value to a register in an TVP7002 decoder device.
+ * Returns zero if successful, or non-zero otherwise.
+ */
+static int tvp7002_write(struct v4l2_subdev *sd, u8 addr, u8 value)
+{
+ struct i2c_client *c;
+ int retry;
+ int error;
+
+ c = v4l2_get_subdevdata(sd);
+
+ for (retry = 0; retry < I2C_RETRY_COUNT; retry++) {
+ error = i2c_smbus_write_byte_data(c, addr, value);
+
+ if (error >= 0)
+ return 0;
+
+ v4l2_warn(sd, "Write: retry ... %d\n", retry);
+ msleep_interruptible(10);
+ }
+ v4l2_err(sd, "TVP7002 write error %d\n", error);
+ return error;
+}
+
+/*
+ * tvp7002_write_err() - Write a register value with error code
+ * @sd: pointer to standard V4L2 sub-device structure
+ * @reg: destination register
+ * @val: value to be written
+ * @error: pointer to error value
+ *
+ * Write a value in a register and save error value in pointer.
+ * Also update the register table if successful
+ */
+static inline void tvp7002_write_err(struct v4l2_subdev *sd, u8 reg,
+ u8 val, int *err)
+{
+ if (!*err)
+ *err = tvp7002_write(sd, reg, val);
+}
+
+/*
+ * tvp7002_g_chip_ident() - Get chip identification number
+ * @sd: ptr to v4l2_subdev struct
+ * @chip: ptr to v4l2_dbg_chip_ident struct
+ *
+ * Obtains the chip's identification number.
+ * Returns zero or -EINVAL if read operation fails.
+ */
+static int tvp7002_g_chip_ident(struct v4l2_subdev *sd,
+ struct v4l2_dbg_chip_ident *chip)
+{
+ u8 rev;
+ int error;
+ struct i2c_client *client = v4l2_get_subdevdata(sd);
+
+ error = tvp7002_read(sd, TVP7002_CHIP_REV, &rev);
+
+ if (error < 0)
+ return error;
+
+ return v4l2_chip_ident_i2c_client(client, chip, V4L2_IDENT_TVP7002,
+ rev);
+}
+
+/*
+ * tvp7002_write_inittab() - Write initialization values
+ * @sd: ptr to v4l2_subdev struct
+ * @regs: ptr to i2c_reg_value struct
+ *
+ * Write initialization values.
+ * Returns zero or -EINVAL if read operation fails.
+ */
+static int tvp7002_write_inittab(struct v4l2_subdev *sd,
+ const struct i2c_reg_value *regs)
+{
+ int error = 0;
+
+ /* Initialize the first (defined) registers */
+ while (TVP7002_EOR != regs->reg) {
+ if (TVP7002_WRITE == regs->type)
+ tvp7002_write_err(sd, regs->reg, regs->value, &error);
+ regs++;
+ }
+
+ return error;
+}
+
+/*
+ * tvp7002_s_dv_preset() - Set digital video preset
+ * @sd: ptr to v4l2_subdev struct
+ * @std: id of the standard to be set
+ *
+ * Set the digital video preset for a TVP7002 decoder device.
+ * Returns zero when successful or -EINVAL if register access fails.
+ */
+static int tvp7002_s_dv_preset(struct v4l2_subdev *sd,
+ struct v4l2_dv_preset *dv_preset)
+{
+ const struct v4l2_dv_enum_preset *preset;
+ int i;
+
+ for (i = 0; i < NUM_PRESETS; i++) {
+ preset = &tvp7002_presets[i].p_data;
+ if (preset->preset == dv_preset->preset)
+ break;
+ }
+
+ if (i == NUM_PRESETS)
+ return -EINVAL;
+
+ return tvp7002_write_inittab(sd, tvp7002_presets[i].p_settings);
+}
+
+/*
+ * tvp7002_g_ctrl() - Get a control
+ * @sd: ptr to v4l2_subdev struct
+ * @ctrl: ptr to v4l2_control struct
+ *
+ * Get a control for a TVP7002 decoder device.
+ * Returns zero when successful or -EINVAL if register access fails.
+ */
+static int tvp7002_g_ctrl(struct v4l2_subdev *sd, struct v4l2_control *ctrl)
+{
+ struct tvp7002 *device = to_tvp7002(sd);
+
+ switch (ctrl->id) {
+ case V4L2_CID_GAIN:
+ ctrl->value = device->gain;
+ return 0;
+ default:
+ return -EINVAL;
+ }
+}
+
+/*
+ * tvp7002_s_ctrl() - Set a control
+ * @sd: ptr to v4l2_subdev struct
+ * @ctrl: ptr to v4l2_control struct
+ *
+ * Set a control in TVP7002 decoder device.
+ * Returns zero when successful or -EINVAL if register access fails.
+ */
+static int tvp7002_s_ctrl(struct v4l2_subdev *sd, struct v4l2_control *ctrl)
+{
+ struct tvp7002 *device = to_tvp7002(sd);
+ int error = 0;
+
+ switch (ctrl->id) {
+ case V4L2_CID_GAIN:
+ tvp7002_write_err(sd, TVP7002_R_FINE_GAIN,
+ ctrl->value & 0xff, &error);
+ tvp7002_write_err(sd, TVP7002_G_FINE_GAIN,
+ ctrl->value & 0xff, &error);
+ tvp7002_write_err(sd, TVP7002_B_FINE_GAIN,
+ ctrl->value & 0xff, &error);
+
+ if (error < 0)
+ return -EINVAL;
+
+ /* Set only after knowing there is no error */
+ device->gain = ctrl->value & 0xff;
+ return 0;
+ default:
+ return -EINVAL;
+ }
+}
+
+/*
+ * tvp7002_queryctrl() - Query a control
+ * @sd: ptr to v4l2_subdev struct
+ * @ctrl: ptr to v4l2_queryctrl struct
+ *
+ * Query a control of a TVP7002 decoder device.
+ * Returns zero when successful or -EINVAL if register read fails.
+ */
+static int tvp7002_queryctrl(struct v4l2_subdev *sd, struct v4l2_queryctrl *qc)
+{
+ switch (qc->id) {
+ case V4L2_CID_GAIN:
+ /*
+ * Gain is supported [0-255, default=0, step=1]
+ */
+ return v4l2_ctrl_query_fill(qc, 0, 255, 1, 0);
+ default:
+ return -EINVAL;
+ }
+}
+
+/*
+ * tvp7002_try_fmt_cap() - V4L2 decoder interface handler for try_fmt
+ * @sd: pointer to standard V4L2 sub-device structure
+ * @f: pointer to standard V4L2 VIDIOC_TRY_FMT ioctl structure
+ *
+ * Implement the VIDIOC_TRY_FMT ioctl for the CAPTURE buffer type. This
+ * ioctl is used to negotiate the image capture size and pixel format
+ * without actually making it take effect.
+ */
+static int tvp7002_try_fmt_cap(struct v4l2_subdev *sd, struct v4l2_format *f)
+{
+ struct tvp7002 *device = to_tvp7002(sd);
+ struct v4l2_pix_format *pix;
+ u32 current_preset;
+
+ pix = &f->fmt.pix;
+
+ /* Calculate height and width based on current standard */
+ current_preset = device->current_preset;
+
+ pix->width = tvp7002_presets[current_preset].p_data.width;
+ pix->height = tvp7002_presets[current_preset].p_data.height;
+
+ pix->pixelformat = V4L2_PIX_FMT_UYVY;
+
+ pix->field = tvp7002_presets[current_preset].scanmode;
+ pix->bytesperline = pix->width * 2;
+ pix->sizeimage = pix->bytesperline * pix->height;
+ pix->colorspace = tvp7002_presets[current_preset].color_space;
+ pix->priv = 0;
+
+ v4l2_dbg(1, debug, sd, "Try FMT: pixelformat - %s, bytesperline - %d"
+ "Width - %d, Height - %d",
+ "8-bit UYVY 4:2:2 Format", pix->bytesperline,
+ pix->width, pix->height);
+ return 0;
+}
+
+/*
+ * tvp7002_s_fmt() - V4L2 decoder interface handler for s_fmt
+ * @sd: pointer to standard V4L2 sub-device structure
+ * @f: pointer to standard V4L2 VIDIOC_S_FMT ioctl structure
+ *
+ * If the requested format is supported, configures the HW to use that
+ * format, returns error code if format not supported or HW can't be
+ * correctly configured.
+ */
+static int tvp7002_s_fmt(struct v4l2_subdev *sd, struct v4l2_format *f)
+{
+ struct tvp7002 *decoder = to_tvp7002(sd);
+ struct v4l2_pix_format *pix;
+ int rval;
+
+ pix = &f->fmt.pix;
+ rval = tvp7002_try_fmt_cap(sd, f);
+ if (rval)
+ return rval;
+
+ decoder->pix = *pix;
+
+ return rval;
+}
+
+/*
+ * tvp7002_g_fmt() - V4L2 decoder interface handler for tvp7002_g_fmt
+ * @sd: pointer to standard V4L2 sub-device structure
+ * @f: pointer to standard V4L2 v4l2_format structure
+ *
+ * Returns the decoder's current pixel format in the v4l2_format
+ * parameter.
+ */
+static int tvp7002_g_fmt(struct v4l2_subdev *sd, struct v4l2_format *f)
+{
+ struct tvp7002 *decoder = to_tvp7002(sd);
+
+ f->fmt.pix = decoder->pix;
+
+ v4l2_dbg(1, debug, sd, "Current FMT: bytesperline - %d"
+ "Width - %d, Height - %d",
+ decoder->pix.bytesperline,
+ decoder->pix.width, decoder->pix.height);
+ return 0;
+}
+
+/*
+ * tvp7002_query_dv_preset() - query DV preset
+ * @sd: pointer to standard V4L2 sub-device structure
+ * @std_id: standard V4L2 v4l2_dv_preset
+ *
+ * Returns the current DV preset by TVP7002. If no active input is
+ * detected, returns -EINVAL
+ */
+static int tvp7002_query_dv_preset(struct v4l2_subdev *sd,
+ struct v4l2_dv_preset *qpreset)
+{
+ struct tvp7002 *device;
+ u32 lpfr;
+ u32 cpln;
+ u8 progressive;
+ int error = 0;
+ u8 lpf_lsb;
+ u8 lpf_msb;
+ u8 cpl_lsb;
+ u8 cpl_msb;
+ int index;
+
+ device = to_tvp7002(sd);
+
+ /* Read standards from device registers */
+ tvp7002_read_err(sd, TVP7002_L_FRAME_STAT_LSBS, &lpf_lsb, &error);
+ tvp7002_read_err(sd, TVP7002_L_FRAME_STAT_MSBS, &lpf_msb, &error);
+
+ if (error < 0)
+ return -EINVAL;
+
+ tvp7002_read_err(sd, TVP7002_CLK_L_STAT_LSBS, &cpl_lsb, &error);
+ tvp7002_read_err(sd, TVP7002_CLK_L_STAT_MSBS, &cpl_msb, &error);
+
+ if (error < 0)
+ return -EINVAL;
+
+ /* Get lines per frame, clocks per line and interlaced/progresive */
+ lpfr = lpf_lsb | ((TVP7002_CL_MASK & lpf_msb) << TVP7002_CL_SHIFT);
+ cpln = cpl_lsb | ((TVP7002_CL_MASK & cpl_msb) << TVP7002_CL_SHIFT);
+ progressive = (lpf_msb & TVP7002_INPR_MASK) >> TVP7002_IP_SHIFT;
+
+ /* Do checking of video modes */
+ for (index = 0; index < NUM_PRESETS; index++) {
+ if (lpfr == tvp7002_presets[index].lines_per_frame &&
+ progressive == tvp7002_presets[index].progressive) {
+ if (tvp7002_presets[index].cpl_min == 0xffff)
+ break;
+ else if (cpln >= tvp7002_presets[index].cpl_min &&
+ cpln <= tvp7002_presets[index].cpl_max)
+ break;
+ else
+ continue;
+ }
+ }
+
+ if (index == NUM_PRESETS) {
+ v4l2_err(sd, "querystd error, lpf = %x, cpl = %x\n",
+ lpfr, cpln);
+ return -EINVAL;
+ }
+
+ /* Set values in found preset */
+ qpreset->preset = tvp7002_presets[index].p_data.preset;
+ device->current_preset = index;
+ error = tvp7002_s_dv_preset(sd, qpreset);
+
+ /* Update lines per frame and clocks per line info */
+ v4l2_dbg(1, debug, sd, "Current preset: %d %d",
+ tvp7002_presets[index].p_data.width,
+ tvp7002_presets[index].p_data.height);
+
+ return error;
+}
+
+#ifdef CONFIG_VIDEO_ADV_DEBUG
+/*
+ * tvp7002_g_register() - Get the value of a register
+ * @sd: ptr to v4l2_subdev struct
+ * @vreg: ptr to v4l2_dbg_register struct
+ *
+ * Get the value of a TVP7002 decoder device register.
+ * Returns zero when successful, -EINVAL if register read fails or
+ * access to I2C client fails, -EPERM if the call is not allowed
+ * by diabled CAP_SYS_ADMIN.
+ */
+static int tvp7002_g_register(struct v4l2_subdev *sd,
+ struct v4l2_dbg_register *reg)
+{
+ struct i2c_client *client = v4l2_get_subdevdata(sd);
+
+ if (!v4l2_chip_match_i2c_client(client, ®->match))
+ return -EINVAL;
+ if (!capable(CAP_SYS_ADMIN))
+ return -EPERM;
+
+ return reg->val < 0 ? -EINVAL : 0;
+}
+
+/*
+ * tvp7002_s_register() - set a control
+ * @sd: ptr to v4l2_subdev struct
+ * @ctrl: ptr to v4l2_control struct
+ *
+ * Get the value of a TVP7002 decoder device register.
+ * Returns zero when successful or -EINVAL if register read fails.
+ */
+static int tvp7002_s_register(struct v4l2_subdev *sd,
+ struct v4l2_dbg_register *reg)
+{
+ struct i2c_client *client = v4l2_get_subdevdata(sd);
+ struct tvp7002 *device = to_tvp7002(sd);
+ int wres;
+
+ if (!v4l2_chip_match_i2c_client(client, ®->match))
+ return -EINVAL;
+ if (!capable(CAP_SYS_ADMIN))
+ return -EPERM;
+
+ wres = tvp7002_write(sd, reg->reg & 0xff, reg->val & 0xff);
+
+ /* Update the register value in device's table */
+ if (!wres)
+ device->registers[reg->reg].value = reg->val;
+
+ return wres < 0 ? -EINVAL : 0;
+}
+#endif
+
+/*
+ * tvp7002_enum_fmt() - Enum supported formats
+ * @sd: pointer to standard V4L2 sub-device structure
+ * @enable: pointer to format struct
+ *
+ * Enumerate supported formats.
+ */
+
+static int tvp7002_enum_fmt(struct v4l2_subdev *sd,
+ struct v4l2_fmtdesc *fmtdesc)
+{
+ /* Check requested format index is within range */
+ if (fmtdesc->index < 0 || fmtdesc->index >= NUM_FORMATS)
+ return -EINVAL;
+ memcpy(fmtdesc, tvp7002_fmt_list + fmtdesc->index, sizeof(*fmtdesc));
+
+ return 0;
+}
+
+/*
+ * tvp7002_s_stream() - V4L2 decoder i/f handler for s_stream
+ * @sd: pointer to standard V4L2 sub-device structure
+ * @enable: streaming enable or disable
+ *
+ * Sets streaming to enable or disable, if possible.
+ */
+static int tvp7002_s_stream(struct v4l2_subdev *sd, int enable)
+{
+ struct tvp7002 *device = to_tvp7002(sd);
+ struct v4l2_dv_preset preset;
+ struct v4l2_control ctrl;
+ int error = 0;
+
+ if (device->streaming == enable)
+ return 0;
+
+ if (enable) {
+ /* Set output state on (low impedance means stream on) */
+ error = tvp7002_write(sd, TVP7002_MISC_CTL_2, 0x00);
+ /* Power off chip */
+ error = tvp7002_write(sd, TVP7002_PWR_CTL, 0x7f);
+ if (error) {
+ v4l2_dbg(1, debug, sd, "Unable to start streaming\n");
+ error = -EINVAL;
+ }
+ /* Power on chip */
+ error = tvp7002_write(sd, TVP7002_PWR_CTL, 0x00);
+ if (error) {
+ v4l2_dbg(1, debug, sd, "Unable to start streaming\n");
+ return error;
+ }
+ /* Reset device state with symbolic one */
+ error = tvp7002_write_inittab(sd, tvp7002_init_default);
+ if (error < 0) {
+ v4l2_dbg(1, debug, sd, "Unable to start streaming\n");
+ return error;
+ }
+
+ /* Set current preset information */
+ preset.preset =
+ tvp7002_presets[device->current_preset].p_data.preset;
+ error = tvp7002_s_dv_preset(sd, &preset);
+ if (error < 0) {
+ v4l2_dbg(1, debug, sd, "Unable to start streaming\n");
+ return error;
+ }
+
+ /* Set gain information */
+ ctrl.id = V4L2_CID_GAIN;
+ ctrl.value = device->gain;
+ error = tvp7002_s_ctrl(sd, &ctrl);
+ if (error < 0) {
+ v4l2_dbg(1, debug, sd, "Unable to start streaming\n");
+ return error;
+ }
+ device->streaming = enable;
+ } else {
+ /* Set output state off (high impedance means stream off) */
+ error = tvp7002_write(sd, TVP7002_MISC_CTL_2, 0x03);
+ if (error) {
+ v4l2_dbg(1, debug, sd, "Unable to stop streaming\n");
+ error = -EINVAL;
+ }
+
+ device->streaming = enable;
+ }
+
+ return error;
+}
+
+/*
+ * tvp7002_log_chk() - Check reading the value of a register
+ * @sd: ptr to v4l2_subdev struct
+ * @reg: register to read
+ * @message: register name/function
+ *
+ * Check procedure for reading a register.
+ * Returns nothing (void).
+ */
+static inline void tvp7002_log_chk(struct v4l2_subdev *sd, u8 reg,
+ const char *message)
+{
+ int error;
+ u8 result;
+
+ error = tvp7002_read(sd, reg, &result);
+
+ if (error >= 0)
+ v4l2_info(sd, "%s (0x%02x) = 0x%02x\n", message, reg, result);
+}
+
+/*
+ * tvp7002_log_status() - Print information about register settings
+ * @sd: ptr to v4l2_subdev struct
+ *
+ * Log register values of a TVP7002 decoder device.
+ * Returns zero or -EINVAL if read operation fails.
+ */
+static int tvp7002_log_status(struct v4l2_subdev *sd)
+{
+ struct tvp7002 *device = to_tvp7002(sd);
+ struct v4l2_dv_preset preset;
+ int i;
+
+ tvp7002_log_chk(sd, TVP7002_CHIP_REV, "Chip revision number");
+
+ /* Find my current standard*/
+ tvp7002_query_dv_preset(sd, &preset);
+
+ /* Print standard related code values */
+ for (i = 0; i < NUM_PRESETS; i++)
+ if (tvp7002_presets[i].p_data.preset == preset.preset)
+ break;
+
+ if (i == NUM_PRESETS)
+ return -EINVAL;
+
+ v4l2_info(sd, "DV Preset: %s\n", tvp7002_presets[i].p_data.name);
+ v4l2_info(sd, "Pixels per line: %u\n",
+ tvp7002_presets[i].p_data.width);
+ v4l2_info(sd, "Lines per frame: %u\n",
+ tvp7002_presets[i].p_data.height);
+ v4l2_info(sd, "Streaming enabled: %s\n",
+ device->streaming ? "yes" : "no");
+
+ /* Print values of the gain control */
+ tvp7002_log_chk(sd, TVP7002_B_FINE_GAIN, "Digital fine gain B ch");
+ tvp7002_log_chk(sd, TVP7002_G_FINE_GAIN, "Digital fine gain G ch");
+ tvp7002_log_chk(sd, TVP7002_R_FINE_GAIN, "Digital fine gain R ch");
+
+ return 0;
+}
+
+/*
+ * tvp7002_reset - Reset a TVP7002 device
+ * @sd: ptr to v4l2_subdev struct
+ * @val: unsigned integer (not used)
+ *
+ * Reset the TVP7002 device
+ * Returns zero when successful or -EINVAL if register read fails.
+ */
+static int tvp7002_reset(struct v4l2_subdev *sd, u32 val)
+{
+ struct tvp7002 *device = to_tvp7002(sd);
+ struct v4l2_dv_preset preset;
+ int polarity_a;
+ int polarity_b;
+ u8 revision;
+ int error;
+
+ error = tvp7002_read(sd, TVP7002_CHIP_REV, &revision);
+ if (error < 0)
+ goto found_error;
+
+ /* Get revision number */
+ v4l2_info(sd, "Rev. %02x detected.\n", revision);
+ if (revision != 0x02)
+ v4l2_info(sd, "Unknown revision detected.\n");
+
+ /* Power down and up */
+ error = tvp7002_write(sd, TVP7002_PWR_CTL, 0x7f);
+ if (error < 0)
+ goto found_error;
+
+ error = tvp7002_write(sd, TVP7002_PWR_CTL, 0x00);
+ if (error < 0)
+ goto found_error;
+
+ /* Initializes TVP7002 to its default values */
+ error = tvp7002_write_inittab(sd, tvp7002_init_default);
+
+ if (error < 0)
+ goto found_error;
+
+ /* Set polarity information after registers have been set */
+ polarity_a = 0x20 | device->pdata->hs_polarity << 5
+ | device->pdata->vs_polarity << 2;
+ error = tvp7002_write(sd, TVP7002_SYNC_CTL_1, polarity_a);
+ if (error < 0)
+ goto found_error;
+
+ polarity_b = 0x01 | device->pdata->fid_polarity << 2
+ | device->pdata->sog_polarity << 1
+ | device->pdata->clk_polarity;
+ error = tvp7002_write(sd, TVP7002_MISC_CTL_3, polarity_b);
+ if (error < 0)
+ goto found_error;
+
+ /* Set registers according to default video mode */
+ preset.preset = tvp7002_presets[device->current_preset].p_data.preset;
+ error = tvp7002_s_dv_preset(sd, &preset);
+
+found_error:
+ return error;
+};
+
+/* V4L2 core operation handlers */
+static const struct v4l2_subdev_core_ops tvp7002_core_ops = {
+ .g_chip_ident = tvp7002_g_chip_ident,
+ .log_status = tvp7002_log_status,
+ .g_ctrl = tvp7002_g_ctrl,
+ .s_ctrl = tvp7002_s_ctrl,
+ .queryctrl = tvp7002_queryctrl,
+ .reset = tvp7002_reset,
+#ifdef CONFIG_VIDEO_ADV_DEBUG
+ .g_register = tvp7002_g_register,
+ .s_register = tvp7002_s_register,
+#endif
+};
+
+/* Specific video subsystem operation handlers */
+static const struct v4l2_subdev_video_ops tvp7002_video_ops = {
+ .s_dv_preset = tvp7002_s_dv_preset,
+ .query_dv_preset = tvp7002_query_dv_preset,
+ .s_stream = tvp7002_s_stream,
+ .g_fmt = tvp7002_g_fmt,
+ .s_fmt = tvp7002_s_fmt,
+ .enum_fmt = tvp7002_enum_fmt,
+};
+
+/* V4L2 top level operation handlers */
+static const struct v4l2_subdev_ops tvp7002_ops = {
+ .core = &tvp7002_core_ops,
+ .video = &tvp7002_video_ops,
+};
+
+static struct tvp7002 tvp7002_dev = {
+ .streaming = 0,
+
+ .pix = {
+ .width = 1280,
+ .height = 720,
+ .pixelformat = V4L2_PIX_FMT_UYVY,
+ .field = V4L2_FIELD_NONE,
+ .bytesperline = 1280 * 2,
+ .sizeimage = 1280 * 2 * 720,
+ .colorspace = V4L2_COLORSPACE_REC709,
+ },
+
+ .current_preset = INDEX_720P60,
+ .gain = 0,
+};
+
+/*
+ * tvp7002_probe - Probe a TVP7002 device
+ * @sd: ptr to v4l2_subdev struct
+ * @ctrl: ptr to i2c_device_id struct
+ *
+ * Initialize the TVP7002 device
+ * Returns zero when successful or -EINVAL if register read fails.
+ */
+static int tvp7002_probe(struct i2c_client *c, const struct i2c_device_id *id)
+{
+ struct v4l2_subdev *sd;
+ struct tvp7002 *device;
+ int error;
+
+ /* Check if the adapter supports the needed features */
+ if (!i2c_check_functionality(c->adapter,
+ I2C_FUNC_SMBUS_READ_BYTE | I2C_FUNC_SMBUS_WRITE_BYTE_DATA))
+ return -EIO;
+
+ if (!c->dev.platform_data) {
+ v4l2_err(c, "No platform data!!\n");
+ return -ENODEV;
+ }
+
+ device = kmalloc(sizeof(struct tvp7002), GFP_KERNEL);
+
+ if (!device)
+ return -ENOMEM;
+
+ memcpy(device, &tvp7002_dev, sizeof(struct tvp7002));
+ sd = &device->sd;
+ device->pdata = c->dev.platform_data;
+
+ /* Tell v4l2 the device is ready */
+ v4l2_i2c_subdev_init(sd, c, &tvp7002_ops);
+ v4l_info(c, "tvp7002 found @ 0x%02x (%s)\n",
+ c->addr, c->adapter->name);
+
+ /* Initialize device internals */
+ error = tvp7002_reset(sd, 0);
+ if (error < 0) {
+ kfree(device);
+ return error;
+ }
+ return 0;
+}
+
+/*
+ * tvp7002_remove - Remove TVP7002 device support
+ * @c: ptr to i2c_client struct
+ *
+ * Reset the TVP7002 device
+ * Returns zero.
+ */
+static int tvp7002_remove(struct i2c_client *c)
+{
+ struct v4l2_subdev *sd = i2c_get_clientdata(c);
+ struct tvp7002 *device = to_tvp7002(sd);
+
+ v4l2_dbg(1, debug, sd, "Removing tvp7002 adapter"
+ "on address 0x%x\n", c->addr);
+
+ v4l2_device_unregister_subdev(sd);
+ kfree(device);
+ return 0;
+}
+
+/* I2C Device ID table */
+static const struct i2c_device_id tvp7002_id[] = {
+ { "tvp7002", 0 },
+ { }
+};
+MODULE_DEVICE_TABLE(i2c, tvp7002_id);
+
+/* I2C driver data */
+static struct i2c_driver tvp7002_driver = {
+ .driver = {
+ .owner = THIS_MODULE,
+ .name = TVP7002_MODULE_NAME,
+ },
+ .probe = tvp7002_probe,
+ .remove = tvp7002_remove,
+ .id_table = tvp7002_id,
+};
+
+/*
+ * tvp7002_init - Initialize driver via I2C interface
+ *
+ * Register the TVP7002 driver.
+ * Returns 0 on success or < 0 on failure.
+ */
+static int __init tvp7002_init(void)
+{
+ return i2c_add_driver(&tvp7002_driver);
+}
+
+/*
+ * tvp7002_exit - Remove driver via I2C interface
+ *
+ * Unregister the TVP7002 driver.
+ * Returns 0 on success or < 0 on failure.
+ */
+static void __exit tvp7002_exit(void)
+{
+ i2c_del_driver(&tvp7002_driver);
+}
+
+module_init(tvp7002_init);
+module_exit(tvp7002_exit);
--
1.6.0.4
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