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+/* 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@ridgerun.com>
+ *
+ * This code is partially based upon the TVP5150 driver
+ * written by Mauro Carvalho Chehab (mchehab@infradead.org),
+ * the TVP514x driver written by Vaibhav Hiremath <hvaibhav@ti.com>
+ * 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/davinci/videohd.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@ridgerun.com>");
+MODULE_LICENSE("GPL");
+
+/* Module Name */
+#define TVP7002_MODULE_NAME "tvp7002"
+
+/* I2C retry attempts */
+#define I2C_RETRY_COUNT (5)
+
+/* 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 */
+ { 0x5c, 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 },
+ { 0x5c, 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 },
+ { 0x5c, 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 },
+ { 0x5c, 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 },
+ { 0x5c, 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 },
+ { 0x5c, 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 },
+ { 0x5c, 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,
+ },
+};
+
+/* Struct list for available standards */
+static struct v4l2_standard tvp7002_standards[] = {
+ {
+ .index = 0,
+ .id = V4L2_STD_720P_60,
+ .name = "720P-60",
+ .frameperiod = {1, 60},
+ .framelines = 720
+ },
+ {
+ .index = 1,
+ .id = V4L2_STD_1080I_60,
+ .name = "1080I-30",
+ .frameperiod = {1, 30},
+ .framelines = 1080
+ },
+ {
+ .index = 2,
+ .id = V4L2_STD_1080I_50,
+ .name = "1080I-25",
+ .frameperiod = {1, 25},
+ .framelines = 1080
+ },
+ {
+ .index = 3,
+ .id = V4L2_STD_720P_50,
+ .name = "720P-50",
+ .frameperiod = {1, 50},
+ .framelines = 720
+ },
+ {
+ .index = 4,
+ .id = V4L2_STD_525P_60,
+ .name = "480P-60",
+ .frameperiod = {1, 60},
+ .framelines = 525
+ },
+ {
+ .index = 5,
+ .id = V4L2_STD_625P_50,
+ .name = "576P-50",
+ .frameperiod = {1, 50},
+ .framelines = 625
+ },
+};
+
+/* Device definition */
+struct tvp7002 {
+ struct v4l2_subdev sd;
+ const struct tvp7002_config *pdata;
+ struct i2c_reg_value registers[ARRAY_SIZE(tvp7002_init_default)];
+
+ int ver;
+ int streaming;
+
+ struct v4l2_pix_format pix;
+ const struct v4l2_fmtdesc *fmt_list;
+ int num_fmts;
+
+ struct v4l2_standard *std_list;
+ v4l2_std_id current_std;
+ int num_stds;
+};
+
+/*
+ * 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_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);
+ else
+ v4l2_err(sd, "Unable to write in register 0x%02X", reg);
+}
+
+/*
+ * 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);
+ else
+ v4l2_info(sd, "Error reading 0x%02x\n", reg);
+}
+
+/*
+ * 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)
+{
+ tvp7002_log_chk(sd, TVP7002_CHIP_REV, "Chip revision number");
+ tvp7002_log_chk(sd, TVP7002_HPLL_FDBK_DIV_LSBS,
+ "H-PLL feedback div LSB");
+ tvp7002_log_chk(sd, TVP7002_HPLL_FDBK_DIV_MSBS,
+ "H-PLL feedback div MSB");
+ tvp7002_log_chk(sd, TVP7002_HPLL_CRTL,
+ "VCO freq range selector");
+ tvp7002_log_chk(sd, TVP7002_HPLL_PHASE_SEL,
+ "ADC sampling clk phase sel");
+ tvp7002_log_chk(sd, TVP7002_CLAMP_START, "Clamp start");
+ tvp7002_log_chk(sd, TVP7002_CLAMP_W, "Clamp width");
+ tvp7002_log_chk(sd, TVP7002_HSYNC_OUT_W, "HSYNC output width");
+ tvp7002_log_chk(sd, TVP7002_B_FINE_GAIN, "Digital fine grain B ch");
+ tvp7002_log_chk(sd, TVP7002_G_FINE_GAIN, "Digital fine grain G ch");
+ tvp7002_log_chk(sd, TVP7002_R_FINE_GAIN, "Digital fine grain R ch");
+ tvp7002_log_chk(sd, TVP7002_B_FINE_OFF_MSBS,
+ "Digital fine grain off B ch");
+ tvp7002_log_chk(sd, TVP7002_G_FINE_OFF_MSBS,
+ "Digital fine grain off G ch");
+ tvp7002_log_chk(sd, TVP7002_R_FINE_OFF_MSBS,
+ "Digital fine grain off R ch");
+ tvp7002_log_chk(sd, TVP7002_FINE_OFF_LSBS, "Dig fine grain off LSBs");
+ tvp7002_log_chk(sd, TVP7002_SYNC_CTL_1, "Sync control 1");
+ tvp7002_log_chk(sd, TVP7002_HPLL_AND_CLAMP_CTL,
+ "H-PLL and clamp control");
+ tvp7002_log_chk(sd, TVP7002_SYNC_ON_G_THRS, "Sync-On-Green threshold");
+ tvp7002_log_chk(sd, TVP7002_SYNC_SEPARATOR_THRS,
+ "Sync separator thrshold");
+ tvp7002_log_chk(sd, TVP7002_HPLL_PRE_COAST, "H-PLL pre-coast");
+ tvp7002_log_chk(sd, TVP7002_HPLL_POST_COAST, "H-PLL post-coast");
+ tvp7002_log_chk(sd, TVP7002_SYNC_DETECT_STAT, "Sync detect status");
+ tvp7002_log_chk(sd, TVP7002_OUT_FORMATTER, "Output formatter");
+ tvp7002_log_chk(sd, TVP7002_MISC_CTL_1, "Miscelaneous control 1");
+ tvp7002_log_chk(sd, TVP7002_MISC_CTL_2, "Miscelaneous control 2");
+ tvp7002_log_chk(sd, TVP7002_MISC_CTL_3, "Miscelaneous control 3");
+ tvp7002_log_chk(sd, TVP7002_IN_MUX_SEL_1, "Input Mux Selector 1");
+ tvp7002_log_chk(sd, TVP7002_IN_MUX_SEL_2, "Input Mux Selector 2");
+ tvp7002_log_chk(sd, TVP7002_B_AND_G_COARSE_GAIN, "B, G coarse gain");
+ tvp7002_log_chk(sd, TVP7002_R_COARSE_GAIN, "R coarse gain");
+ tvp7002_log_chk(sd, TVP7002_B_COARSE_OFF, "Coarse offset for B ch");
+ tvp7002_log_chk(sd, TVP7002_G_COARSE_OFF, "Coarse offset for G ch");
+ tvp7002_log_chk(sd, TVP7002_R_COARSE_OFF, "Coarse offset for R ch");
+ tvp7002_log_chk(sd, TVP7002_HSOUT_OUT_START,
+ "HSYNC lead edge out start");
+ tvp7002_log_chk(sd, TVP7002_MISC_CTL_4, "Miscelaneous control 4");
+ tvp7002_log_chk(sd, TVP7002_B_DGTL_ALC_OUT_LSBS,
+ "Flt ALC out B ch LSBs");
+ tvp7002_log_chk(sd, TVP7002_G_DGTL_ALC_OUT_LSBS,
+ "Flt ALC out G ch LSBs");
+ tvp7002_log_chk(sd, TVP7002_R_DGTL_ALC_OUT_LSBS,
+ "Flt ALC out R ch LSBs");
+ tvp7002_log_chk(sd, TVP7002_AUTO_LVL_CTL_ENABLE,
+ "Auto level ctrl enable");
+ tvp7002_log_chk(sd, TVP7002_DGTL_ALC_OUT_MSBS,
+ "Filt ALC out RGB chs MSB");
+ tvp7002_log_chk(sd, TVP7002_AUTO_LVL_CTL_FILTER,
+ "Auto level ctrl filter");
+ tvp7002_log_chk(sd, 0x29, "Reserved register");
+ tvp7002_log_chk(sd, TVP7002_FINE_CLAMP_CTL, "Fine clamp control");
+ tvp7002_log_chk(sd, TVP7002_PWR_CTL, "Power control");
+ tvp7002_log_chk(sd, TVP7002_ADC_SETUP, "ADC setup");
+ tvp7002_log_chk(sd, TVP7002_COARSE_CLAMP_CTL, "Coarse clamp ctrl");
+ tvp7002_log_chk(sd, TVP7002_SOG_CLAMP, "Sync-On-Green clamp");
+ tvp7002_log_chk(sd, TVP7002_RGB_COARSE_CLAMP_CTL,
+ "RGB coarse clamp ctrl");
+ tvp7002_log_chk(sd, TVP7002_SOG_COARSE_CLAMP_CTL,
+ "SOG coarse clamp ctrl");
+ tvp7002_log_chk(sd, TVP7002_ALC_PLACEMENT, "ALC placement");
+ tvp7002_log_chk(sd, 0x32, "Reserved register");
+ tvp7002_log_chk(sd, 0x33, "Reserved register");
+ tvp7002_log_chk(sd, TVP7002_MVIS_STRIPPER_W,
+ "Macrovision stripper width");
+ tvp7002_log_chk(sd, TVP7002_SYNC_BYPASS, "Sync bypass");
+ tvp7002_log_chk(sd, TVP7002_L_FRAME_STAT_LSBS,
+ "Lines p Frame status LSBs");
+ tvp7002_log_chk(sd, TVP7002_L_FRAME_STAT_MSBS,
+ "Lines p Frame status MSBs");
+ tvp7002_log_chk(sd, TVP7002_CLK_L_STAT_LSBS, "Clks p line stat LSBs");
+ tvp7002_log_chk(sd, TVP7002_CLK_L_STAT_MSBS, "Clks p line stat MSBs");
+ tvp7002_log_chk(sd, TVP7002_HSYNC_W, "HSYNC width");
+ tvp7002_log_chk(sd, TVP7002_VSYNC_W, "VSYNC width");
+ tvp7002_log_chk(sd, TVP7002_L_LENGTH_TOL, "Line length tolerance");
+ tvp7002_log_chk(sd, 0x3e, "Reserved register");
+ tvp7002_log_chk(sd, TVP7002_VIDEO_BWTH_CTL, "Video bandwth control");
+ tvp7002_log_chk(sd, TVP7002_AVID_START_PIXEL_LSBS,
+ "AVID start pixel LSBs");
+ tvp7002_log_chk(sd, TVP7002_AVID_START_PIXEL_MSBS,
+ "AVID start pixel MSBs");
+ tvp7002_log_chk(sd, TVP7002_AVID_STOP_PIXEL_LSBS,
+ "AVID stop pixel LSBs");
+ tvp7002_log_chk(sd, TVP7002_AVID_STOP_PIXEL_MSBS,
+ "AVID stop pixel MSBs");
+ tvp7002_log_chk(sd, TVP7002_VBLK_F_0_START_L_OFF,
+ "VBLK start line off 0");
+ tvp7002_log_chk(sd, TVP7002_VBLK_F_1_START_L_OFF,
+ "VBLK start line off 1");
+ tvp7002_log_chk(sd, TVP7002_VBLK_F_0_DURATION, "VBLK duration 0");
+ tvp7002_log_chk(sd, TVP7002_VBLK_F_1_DURATION, "VBLK duration 1");
+ tvp7002_log_chk(sd, TVP7002_FBIT_F_0_START_L_OFF,
+ "FBIT start line off 0");
+ tvp7002_log_chk(sd, TVP7002_FBIT_F_1_START_L_OFF,
+ "FBIT start line off 1");
+ tvp7002_log_chk(sd, TVP7002_YUV_Y_G_COEF_LSBS, "YUV Y G LSBs");
+ tvp7002_log_chk(sd, TVP7002_YUV_Y_G_COEF_MSBS, "YUV Y G MSBs");
+ tvp7002_log_chk(sd, TVP7002_YUV_Y_B_COEF_LSBS, "YUV Y B LSBs");
+ tvp7002_log_chk(sd, TVP7002_YUV_Y_B_COEF_MSBS, "YUV Y B MSBs");
+ tvp7002_log_chk(sd, TVP7002_YUV_Y_R_COEF_LSBS, "YUV Y R LSBs");
+ tvp7002_log_chk(sd, TVP7002_YUV_Y_R_COEF_MSBS, "YUV Y R MSBs");
+ tvp7002_log_chk(sd, TVP7002_YUV_U_G_COEF_LSBS, "YUV U G LSBs");
+ tvp7002_log_chk(sd, TVP7002_YUV_U_G_COEF_MSBS, "YUV U G MSBs");
+ tvp7002_log_chk(sd, TVP7002_YUV_U_B_COEF_LSBS, "YUV U B LSBs");
+ tvp7002_log_chk(sd, TVP7002_YUV_U_B_COEF_MSBS, "YUV U B MSBs");
+ tvp7002_log_chk(sd, TVP7002_YUV_U_R_COEF_LSBS, "YUV U R LSBs");
+ tvp7002_log_chk(sd, TVP7002_YUV_U_R_COEF_MSBS, "YUV U R MSBs");
+ tvp7002_log_chk(sd, TVP7002_YUV_V_G_COEF_LSBS, "YUV V G LSBs");
+ tvp7002_log_chk(sd, TVP7002_YUV_V_G_COEF_MSBS, "YUV V G MSBs");
+ tvp7002_log_chk(sd, TVP7002_YUV_V_B_COEF_LSBS, "YUV V B LSBs");
+ tvp7002_log_chk(sd, TVP7002_YUV_V_B_COEF_MSBS, "YUV V B MSBs");
+ tvp7002_log_chk(sd, TVP7002_YUV_V_R_COEF_LSBS, "YUV V R LSBs");
+ tvp7002_log_chk(sd, TVP7002_YUV_V_R_COEF_MSBS, "YUV V R MSBs");
+
+ return 0;
+}
+
+/*
+ * 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 -EINVAL;
+
+ 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 (0x5c != regs->reg) {
+ if (TVP7002_WRITE == regs->type)
+ error = tvp7002_write(sd, regs->reg, regs->value);
+ if (error < 0)
+ return -EINVAL;
+ regs++;
+ }
+
+ return 0;
+}
+
+/*
+ * tvp7002_update_dev_tab() - Update device's register table
+ * @sd: pointer to standard V4L2 sub-device structure
+ * @tab: pointer to device table
+ *
+ * Update state information in the device's register table.
+ * Returns 0 on success or -EINVAL on error.
+ */
+static int tvp7002_update_dev_tab(struct v4l2_subdev *sd,
+ const struct i2c_reg_value *regs)
+{
+ struct tvp7002 *device = to_tvp7002(sd);
+
+ if (!regs)
+ return -EINVAL;
+
+ while (0x5c != regs->reg) {
+ device->registers[regs->reg].value = regs->value;
+ regs++;
+ }
+
+ return 0;
+}
+
+/*
+ * tvp7002_set_fmt_parms() - Write parameters to set video mode
+ * @sd: pointer to standard V4L2 sub-device structure
+ * @regs: pointer to register table
+ *
+ * Set video mode register-dependent parameters
+ * Returns 0 on success or -EINVAL on error.
+ */
+static int tvp7002_set_fmt_parms(struct v4l2_subdev *sd,
+ struct i2c_reg_value *regs){
+ int error;
+
+ v4l2_dbg(1, debug, sd, "Setting format parameters...\n");
+
+ if (regs == NULL) {
+ v4l2_err(sd, "Parameter reference is NULL.\n");
+ return -EINVAL;
+ }
+
+ error = tvp7002_write_inittab(sd, regs);
+
+ if (error < 0) {
+ v4l2_err(sd, "Error in setting video parameters\n");
+ return -EINVAL;
+ }
+
+ /* Update our device device information */
+ error = tvp7002_update_dev_tab(sd, regs);
+
+ return error;
+}
+
+/*
+ * tvp7002_map_set_std() - Map and set video standard to register parameters
+ * @std: v4l2_std_id (u64) integer
+ *
+ * Returns 0 if successful or -EINVAL on error.
+ */
+static int tvp7002_map_set_std(struct v4l2_subdev *sd, v4l2_std_id std)
+{
+ int error;
+
+ switch (std) {
+ case V4L2_STD_525P_60:
+ error = tvp7002_set_fmt_parms(sd,
+ (struct i2c_reg_value *)tvp7002_parms_480P);
+ break;
+ case V4L2_STD_625P_50:
+ error = tvp7002_set_fmt_parms(sd,
+ (struct i2c_reg_value *)tvp7002_parms_576P);
+ break;
+ case V4L2_STD_720P_50:
+ error = tvp7002_set_fmt_parms(sd,
+ (struct i2c_reg_value *)tvp7002_parms_720P50);
+ break;
+ case V4L2_STD_720P_60:
+ error = tvp7002_set_fmt_parms(sd,
+ (struct i2c_reg_value *)tvp7002_parms_720P60);
+ break;
+ case V4L2_STD_1080I_50:
+ error = tvp7002_set_fmt_parms(sd,
+ (struct i2c_reg_value *)tvp7002_parms_1080I50);
+ break;
+ case V4L2_STD_1080I_60:
+ error = tvp7002_set_fmt_parms(sd,
+ (struct i2c_reg_value *)tvp7002_parms_1080I60);
+ break;
+ default:
+ error = -EINVAL;
+ break;
+ }
+
+ return error;
+}
+
+/*
+ * tvp7002_s_std() - Set current standard
+ * @sd: ptr to v4l2_subdev struct
+ * @std: id of the standard to be set
+ *
+ * Set a control for a TVP7002 decoder device.
+ * Returns zero when successful or -EINVAL if register access fails.
+ */
+static int tvp7002_s_std(struct v4l2_subdev *sd, v4l2_std_id std)
+{
+ struct tvp7002 *device = to_tvp7002(sd);
+ struct v4l2_standard *standard;
+ int error = 0;
+ int i;
+
+ for (i = 0; i < device->num_stds; i++) {
+ standard = &device->std_list[i];
+ if (standard->id & std)
+ break;
+ }
+ if (i == device->num_stds) {
+ v4l2_err(sd, "Invalid standard id\n");
+ return -EINVAL;
+ }
+
+ error = tvp7002_map_set_std(sd, standard->id);
+ if (error < 0) {
+ v4l2_err(sd, "Error in S_STD\n");
+ return error;
+ }
+
+ return error;
+}
+
+/*
+ * 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)
+{
+ int errorr;
+ int errorg;
+ int errorb;
+ u8 rval;
+ u8 gval;
+ u8 bval;
+ int res;
+
+ switch (ctrl->id) {
+ case V4L2_CID_GAIN:
+ errorr = tvp7002_read(sd, TVP7002_R_FINE_GAIN, &rval);
+ errorg = tvp7002_read(sd, TVP7002_G_FINE_GAIN, &gval);
+ errorb = tvp7002_read(sd, TVP7002_B_FINE_GAIN, &bval);
+
+ if (errorr < 0 || errorg < 0 || errorb < 0) {
+ res = -1;
+ } else if (rval != gval || rval != bval) {
+ res = -1;
+ } else {
+ ctrl->value = rval & 0x0F;
+ res = ctrl->value;
+ }
+ break;
+ default:
+ res = -1;
+ break;
+ }
+
+ return res < 0 ? res : 0;
+}
+
+/*
+ * 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 rval, gval, bval;
+ int error;
+
+ switch (ctrl->id) {
+ case V4L2_CID_GAIN:
+ rval = tvp7002_write(sd, TVP7002_R_FINE_GAIN,
+ ctrl->value & 0xff);
+ gval = tvp7002_write(sd, TVP7002_G_FINE_GAIN,
+ ctrl->value & 0xff);
+ bval = tvp7002_write(sd, TVP7002_B_FINE_GAIN,
+ ctrl->value & 0xff);
+ device->registers[TVP7002_R_FINE_GAIN].value = rval;
+ device->registers[TVP7002_G_FINE_GAIN].value = gval;
+ device->registers[TVP7002_B_FINE_GAIN].value = bval;
+
+ if (rval < 0 || gval < 0 || bval < 0)
+ error = -1;
+ else
+ error = rval;
+ break;
+ default:
+ error = -1;
+ break;
+ }
+
+ return error < 0 ? -EINVAL : 0;
+}
+
+/*
+ * 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)
+{
+ int error;
+ error = -EINVAL;
+
+ if (qc == NULL)
+ return error;
+
+ v4l2_info(sd, "queryctrl called\n");
+
+ switch (qc->id) {
+ case V4L2_CID_GAIN:
+ /*
+ * Gain is supported [0-255, default=0, step=1]
+ */
+ error = v4l2_ctrl_query_fill(qc, 0, 255, 1, 0);
+ break;
+ default:
+ break;
+ }
+
+ return error;
+}
+
+/*
+ * tvp7002_colorspace - Find the color space of a video format
+ * @std: v4l2_std_id (u64) integer
+ *
+ * Returns color space for a standard id
+ */
+static inline enum v4l2_colorspace tvp7002_colorspace(v4l2_std_id std)
+{
+ switch (std) {
+ case V4L2_STD_525P_60:
+ case V4L2_STD_625P_50:
+ return V4L2_COLORSPACE_SMPTE170M;
+ case V4L2_STD_720P_50:
+ case V4L2_STD_720P_60:
+ case V4L2_STD_1080I_50:
+ case V4L2_STD_1080I_60:
+ return V4L2_COLORSPACE_REC709;
+ default:
+ return 0;
+ }
+}
+
+/*
+ * tvp7002_scanmode - Find the scan mode of a video format
+ * @std: v4l2_std_id (u64) integer
+ *
+ * Returns color space for a standard id
+ */
+static inline enum v4l2_field tvp7002_scanmode(v4l2_std_id std)
+{
+ switch (std) {
+ case V4L2_STD_525P_60:
+ case V4L2_STD_625P_50:
+ case V4L2_STD_720P_50:
+ case V4L2_STD_720P_60:
+ return V4L2_FIELD_INTERLACED;
+ case V4L2_STD_1080I_50:
+ case V4L2_STD_1080I_60:
+ return V4L2_FIELD_INTERLACED;
+ default:
+ return V4L2_FIELD_NONE;
+ }
+}
+
+/*
+ * tvp7002_get_pixels - Find the active pixels for a video standard
+ * @std: v4l2_std_id (u64) integer
+ *
+ * Returns number of active pixels for a standard id
+ */
+static inline int tvp7002_get_pixels(v4l2_std_id std)
+{
+ switch (std) {
+ case V4L2_STD_525P_60:
+ case V4L2_STD_625P_50:
+ return 720;
+ case V4L2_STD_720P_50:
+ case V4L2_STD_720P_60:
+ return 1280;
+ case V4L2_STD_1080I_50:
+ case V4L2_STD_1080I_60:
+ return 1920;
+ default:
+ return -EINVAL;
+ }
+}
+
+/*
+ * tvp7002_get_lines - Find the active lines for a video standard
+ * @std: v4l2_std_id (u64) integer
+ *
+ * Returns number of active lines for a standard id
+ */
+static inline int tvp7002_get_lines(v4l2_std_id std)
+{
+ switch (std) {
+ case V4L2_STD_525P_60:
+ return 480;
+ case V4L2_STD_625P_50:
+ return 576;
+ case V4L2_STD_720P_50:
+ case V4L2_STD_720P_60:
+ return 720;
+ case V4L2_STD_1080I_50:
+ case V4L2_STD_1080I_60:
+ return 1080;
+ 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;
+ v4l2_std_id current_std;
+
+ if (f == NULL)
+ return -EINVAL;
+
+ if (f->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
+ /* only capture is supported */
+ return -EINVAL;
+
+ pix = &f->fmt.pix;
+
+ /* Calculate height and width based on current standard */
+ current_std = device->current_std;
+
+ pix->width = tvp7002_get_pixels(current_std);
+ pix->height = tvp7002_get_lines(current_std);
+
+ pix->pixelformat = V4L2_PIX_FMT_UYVY;
+
+ pix->field = tvp7002_scanmode(current_std);
+ pix->bytesperline = pix->width * 2;
+ pix->sizeimage = pix->bytesperline * pix->height;
+ pix->colorspace = tvp7002_colorspace(current_std);
+ 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;
+
+ if (f == NULL)
+ return -EINVAL;
+
+ if (f->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
+ /* only capture is supported */
+ return -EINVAL;
+
+ 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);
+
+ if (f == NULL)
+ return -EINVAL;
+
+ if (f->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
+ /* only capture is supported */
+ return -EINVAL;
+
+ 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_querystd() - V4L2 decoder interface handler for querystd
+ * @sd: pointer to standard V4L2 sub-device structure
+ * @std_id: standard V4L2 std_id ioctl enum
+ *
+ * Returns the current standard detected by TVP7002. If no active input is
+ * detected, returns -EINVAL
+ */
+static int tvp7002_querystd(struct v4l2_subdev *sd, v4l2_std_id *id)
+{
+ struct tvp7002 *device;
+ u32 lines_per_frame;
+ u32 clocks_per_line;
+ u8 progressive;
+ int errorl;
+ int errorm;
+ u8 lpf_lsb;
+ u8 lpf_msb;
+ u8 cpl_lsb;
+ u8 cpl_msb;
+
+ device = to_tvp7002(sd);
+
+ if (id == NULL)
+ return -EINVAL;
+
+ /* Read standards from device registers */
+
+ errorl = tvp7002_read(sd, TVP7002_L_FRAME_STAT_LSBS, &lpf_lsb);
+ errorm = tvp7002_read(sd, TVP7002_L_FRAME_STAT_MSBS, &lpf_msb);
+
+ if (errorl < 0 || errorm < 0) {
+ v4l2_err(sd, "LPF status unreadable\n");
+ return -EINVAL;
+ }
+
+ errorl = tvp7002_read(sd, TVP7002_CLK_L_STAT_LSBS, &cpl_lsb);
+ errorm = tvp7002_read(sd, TVP7002_CLK_L_STAT_MSBS, &cpl_msb);
+
+ if (errorl < 0 || errorm < 0) {
+ v4l2_err(sd, "CPL status unreadable\n");
+ return -EINVAL;
+ }
+
+ /* Get lines per frame, clocks per line and interlaced/progresive */
+ lines_per_frame = lpf_lsb | ((TVP7002_CL_MASK & lpf_msb) <<
+ TVP7002_CL_SHIFT);
+ clocks_per_line = cpl_lsb | ((TVP7002_CL_MASK & cpl_msb) <<
+ TVP7002_CL_SHIFT);
+ progressive = (lpf_msb & TVP7002_INPR_MASK) >> TVP7002_IP_SHIFT;
+
+ /* Check read values */
+ if (!progressive
+ && (TVP7002_LINES_1080_60 == lines_per_frame) &&
+ (clocks_per_line >= TVP7002_CPL_1080_60_LOWER &&
+ clocks_per_line <= TVP7002_CPL_1080_60_UPPER))
+ *id = V4L2_STD_1080I_60;
+ else if (!progressive
+ && (TVP7002_LINES_1080_50 == lines_per_frame) &&
+ (clocks_per_line >= TVP7002_CPL_1080_50_LOWER &&
+ clocks_per_line <= TVP7002_CPL_1080_50_UPPER))
+ *id = V4L2_STD_1080I_50;
+ else if (progressive
+ && (TVP7002_LINES_720 == lines_per_frame) &&
+ (clocks_per_line >= TVP7002_CPL_720P_50_LOWER &&
+ clocks_per_line <= TVP7002_CPL_720P_50_UPPER))
+ *id = V4L2_STD_720P_50;
+ else if (progressive
+ && (TVP7002_LINES_720 == lines_per_frame) &&
+ (clocks_per_line >= TVP7002_CPL_720P_60_LOWER &&
+ clocks_per_line <= TVP7002_CPL_720P_60_UPPER))
+ *id = V4L2_STD_720P_60;
+ else if (progressive
+ && (525 == lines_per_frame))
+ *id = V4L2_STD_525P_60;
+ else if (progressive
+ && (625 == lines_per_frame))
+ *id = V4L2_STD_625P_50;
+ else if (!progressive
+ && (525 == lines_per_frame))
+ *id = V4L2_STD_NTSC;
+ else if (!progressive
+ && (625 == lines_per_frame))
+ *id = V4L2_STD_PAL;
+ else {
+ v4l2_err(sd, "querystd error, lpf = %x, cpl = %x\n",
+ lines_per_frame, clocks_per_line);
+ return -EINVAL;
+ }
+
+ device->current_std = *id;
+ errorl = tvp7002_s_std(sd, *id);
+
+ /* Update lines per frame and clocks per line info */
+
+ v4l2_info(sd, "Current STD: %d %d", tvp7002_get_pixels(*id),
+ tvp7002_get_lines(*id));
+
+ return errorl;
+}
+
+#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
+ *
+ * Sets streaming to enable or disable, if possible.
+ */
+
+static int tvp7002_enum_fmt(struct v4l2_subdev *sd,
+ struct v4l2_fmtdesc *fmtdesc)
+{
+ struct tvp7002 *device = to_tvp7002(sd);
+
+ if (fmtdesc == NULL)
+ return -EINVAL;
+
+ memcpy(fmtdesc, device->fmt_list, sizeof(device->fmt_list));
+
+ 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);
+ int error = 0;
+
+ if (device->streaming == enable)
+ return 0;
+
+ if (enable) {
+ /* Set output state on (low impedance means stream on) */
+ device->registers[TVP7002_MISC_CTL_2].value = 0x00;
+ /* Power off chip */
+ error = tvp7002_write(sd, TVP7002_PWR_CTL, 0x7f);
+ if (error) {
+ v4l2_err(sd, "Unable to start streaming\n");
+ error = -EINVAL;
+ }
+ /* Power on chip */
+ error = tvp7002_write(sd, TVP7002_PWR_CTL, 0x00);
+ if (error) {
+ v4l2_err(sd, "Unable to start streaming\n");
+ return error;
+ }
+ /* Re-set register values with stored ones */
+ error = tvp7002_write_inittab(sd, device->registers);
+
+ if (error < 0) {
+ v4l2_err(sd, "Unable to start streaming\n");
+ return error;
+ }
+ device->streaming = enable;
+ } else {
+ /* Set output state off (low impedance means stream off) */
+ device->registers[TVP7002_MISC_CTL_2].value = 0x03;
+ error = tvp7002_write(sd, TVP7002_MISC_CTL_2, 0x03);
+ if (error) {
+ v4l2_err(sd, "Unable to stop streaming\n");
+ error = -EINVAL;
+ }
+
+ device->streaming = enable;
+ }
+
+ return error;
+}
+
+/*
+ * 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);
+ int polarity_a;
+ int polarity_b;
+ u8 revision;
+ int error;
+
+ error = tvp7002_read(sd, TVP7002_CHIP_REV, &revision);
+ if (error < 0) {
+ error = -EINVAL;
+ goto found_error;
+ }
+
+ if (revision == 0x02) {
+ v4l2_info(sd, "Rev. %02x detected.\n", revision);
+ } else {
+ v4l2_info(sd, "Unknown revision detected.\n");
+ v4l2_info(sd, "Revision number is %02x\n", revision);
+ }
+
+ /* Power down and up */
+ error = tvp7002_write(sd, TVP7002_PWR_CTL, 0x7f);
+ if (error < 0) {
+ error = -EINVAL;
+ goto found_error;
+ }
+
+ error = tvp7002_write(sd, TVP7002_PWR_CTL, 0x00);
+ if (error < 0) {
+ error = -EINVAL;
+ goto found_error;
+ }
+
+ /* Set the default register values */
+ memcpy(device->registers, tvp7002_init_default,
+ sizeof(tvp7002_init_default));
+
+ /* Initializes TVP7002 to its default values */
+ error = tvp7002_write_inittab(sd, device->registers);
+
+ if (error < 0) {
+ error = -EINVAL;
+ 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) {
+ error = -EINVAL;
+ 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) {
+ error = -EINVAL;
+ goto found_error;
+ }
+
+ /* Save polarity information in register */
+ device->registers[TVP7002_SYNC_CTL_1].value = polarity_a;
+ device->registers[TVP7002_MISC_CTL_3].value = polarity_b;
+ /* Set registers according to default video mode */
+ error = tvp7002_s_std(sd, device->current_std);
+
+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,
+ .s_std = tvp7002_s_std,
+ .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 = {
+ .querystd = tvp7002_querystd,
+ .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,
+
+ .fmt_list = tvp7002_fmt_list,
+ .num_fmts = ARRAY_SIZE(tvp7002_fmt_list),
+
+ .pix = {
+ /* Default to NTSC 8-bit YUV 422 */
+ .width = HD_720_NUM_ACTIVE_PIXELS,
+ .height = HD_720_NUM_ACTIVE_LINES,
+ .pixelformat = V4L2_PIX_FMT_UYVY,
+ .field = V4L2_FIELD_NONE,
+ .bytesperline = HD_720_NUM_ACTIVE_PIXELS * 2,
+ .sizeimage =
+ HD_720_NUM_ACTIVE_PIXELS * 2 * HD_720_NUM_ACTIVE_LINES,
+ .colorspace = V4L2_COLORSPACE_SMPTE170M,
+ },
+
+ .current_std = V4L2_STD_720P_60,
+ .std_list = (struct v4l2_standard *)tvp7002_standards,
+ .num_stds = ARRAY_SIZE(tvp7002_standards),
+};
+
+/*
+ * 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 = (struct tvp7002 *) 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) {
+ error = -EINVAL;
+ goto found_error;
+ }
+
+ /* Print status log */
+ tvp7002_log_status(sd);
+
+found_error:
+ if (error < 0)
+ kfree(device);
+
+ return error;
+}
+
+/*
+ * 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);