forked from Minki/linux
90ab5ee941
module_param(bool) used to counter-intuitively take an int. In
fddd5201 (mid-2009) we allowed bool or int/unsigned int using a messy
trick.
It's time to remove the int/unsigned int option. For this version
it'll simply give a warning, but it'll break next kernel version.
Acked-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
1096 lines
33 KiB
C
1096 lines
33 KiB
C
/* Texas Instruments Triple 8-/10-BIT 165-/110-MSPS Video and Graphics
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* Digitizer with Horizontal PLL registers
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*
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* Copyright (C) 2009 Texas Instruments Inc
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* Author: Santiago Nunez-Corrales <santiago.nunez@ridgerun.com>
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*
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* This code is partially based upon the TVP5150 driver
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* written by Mauro Carvalho Chehab (mchehab@infradead.org),
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* the TVP514x driver written by Vaibhav Hiremath <hvaibhav@ti.com>
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* and the TVP7002 driver in the TI LSP 2.10.00.14. Revisions by
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* Muralidharan Karicheri and Snehaprabha Narnakaje (TI).
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*/
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#include <linux/delay.h>
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#include <linux/i2c.h>
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#include <linux/slab.h>
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#include <linux/videodev2.h>
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#include <linux/module.h>
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#include <media/tvp7002.h>
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#include <media/v4l2-device.h>
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#include <media/v4l2-chip-ident.h>
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#include <media/v4l2-common.h>
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#include <media/v4l2-ctrls.h>
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#include "tvp7002_reg.h"
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MODULE_DESCRIPTION("TI TVP7002 Video and Graphics Digitizer driver");
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MODULE_AUTHOR("Santiago Nunez-Corrales <santiago.nunez@ridgerun.com>");
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MODULE_LICENSE("GPL");
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/* Module Name */
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#define TVP7002_MODULE_NAME "tvp7002"
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/* I2C retry attempts */
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#define I2C_RETRY_COUNT (5)
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/* End of registers */
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#define TVP7002_EOR 0x5c
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/* Read write definition for registers */
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#define TVP7002_READ 0
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#define TVP7002_WRITE 1
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#define TVP7002_RESERVED 2
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/* Interlaced vs progressive mask and shift */
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#define TVP7002_IP_SHIFT 5
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#define TVP7002_INPR_MASK (0x01 << TVP7002_IP_SHIFT)
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/* Shift for CPL and LPF registers */
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#define TVP7002_CL_SHIFT 8
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#define TVP7002_CL_MASK 0x0f
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/* Debug functions */
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static bool debug;
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module_param(debug, bool, 0644);
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MODULE_PARM_DESC(debug, "Debug level (0-2)");
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/* Structure for register values */
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struct i2c_reg_value {
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u8 reg;
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u8 value;
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u8 type;
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};
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/*
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* Register default values (according to tvp7002 datasheet)
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* In the case of read-only registers, the value (0xff) is
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* never written. R/W functionality is controlled by the
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* writable bit in the register struct definition.
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*/
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static const struct i2c_reg_value tvp7002_init_default[] = {
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{ TVP7002_CHIP_REV, 0xff, TVP7002_READ },
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{ TVP7002_HPLL_FDBK_DIV_MSBS, 0x67, TVP7002_WRITE },
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{ TVP7002_HPLL_FDBK_DIV_LSBS, 0x20, TVP7002_WRITE },
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{ TVP7002_HPLL_CRTL, 0xa0, TVP7002_WRITE },
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{ TVP7002_HPLL_PHASE_SEL, 0x80, TVP7002_WRITE },
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{ TVP7002_CLAMP_START, 0x32, TVP7002_WRITE },
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{ TVP7002_CLAMP_W, 0x20, TVP7002_WRITE },
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{ TVP7002_HSYNC_OUT_W, 0x60, TVP7002_WRITE },
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{ TVP7002_B_FINE_GAIN, 0x00, TVP7002_WRITE },
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{ TVP7002_G_FINE_GAIN, 0x00, TVP7002_WRITE },
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{ TVP7002_R_FINE_GAIN, 0x00, TVP7002_WRITE },
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{ TVP7002_B_FINE_OFF_MSBS, 0x80, TVP7002_WRITE },
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{ TVP7002_G_FINE_OFF_MSBS, 0x80, TVP7002_WRITE },
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{ TVP7002_R_FINE_OFF_MSBS, 0x80, TVP7002_WRITE },
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{ TVP7002_SYNC_CTL_1, 0x20, TVP7002_WRITE },
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{ TVP7002_HPLL_AND_CLAMP_CTL, 0x2e, TVP7002_WRITE },
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{ TVP7002_SYNC_ON_G_THRS, 0x5d, TVP7002_WRITE },
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{ TVP7002_SYNC_SEPARATOR_THRS, 0x47, TVP7002_WRITE },
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{ TVP7002_HPLL_PRE_COAST, 0x00, TVP7002_WRITE },
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{ TVP7002_HPLL_POST_COAST, 0x00, TVP7002_WRITE },
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{ TVP7002_SYNC_DETECT_STAT, 0xff, TVP7002_READ },
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{ TVP7002_OUT_FORMATTER, 0x47, TVP7002_WRITE },
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{ TVP7002_MISC_CTL_1, 0x01, TVP7002_WRITE },
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{ TVP7002_MISC_CTL_2, 0x00, TVP7002_WRITE },
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{ TVP7002_MISC_CTL_3, 0x01, TVP7002_WRITE },
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{ TVP7002_IN_MUX_SEL_1, 0x00, TVP7002_WRITE },
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{ TVP7002_IN_MUX_SEL_2, 0x67, TVP7002_WRITE },
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{ TVP7002_B_AND_G_COARSE_GAIN, 0x77, TVP7002_WRITE },
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{ TVP7002_R_COARSE_GAIN, 0x07, TVP7002_WRITE },
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{ TVP7002_FINE_OFF_LSBS, 0x00, TVP7002_WRITE },
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{ TVP7002_B_COARSE_OFF, 0x10, TVP7002_WRITE },
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{ TVP7002_G_COARSE_OFF, 0x10, TVP7002_WRITE },
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{ TVP7002_R_COARSE_OFF, 0x10, TVP7002_WRITE },
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{ TVP7002_HSOUT_OUT_START, 0x08, TVP7002_WRITE },
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{ TVP7002_MISC_CTL_4, 0x00, TVP7002_WRITE },
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{ TVP7002_B_DGTL_ALC_OUT_LSBS, 0xff, TVP7002_READ },
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{ TVP7002_G_DGTL_ALC_OUT_LSBS, 0xff, TVP7002_READ },
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{ TVP7002_R_DGTL_ALC_OUT_LSBS, 0xff, TVP7002_READ },
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{ TVP7002_AUTO_LVL_CTL_ENABLE, 0x80, TVP7002_WRITE },
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{ TVP7002_DGTL_ALC_OUT_MSBS, 0xff, TVP7002_READ },
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{ TVP7002_AUTO_LVL_CTL_FILTER, 0x53, TVP7002_WRITE },
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{ 0x29, 0x08, TVP7002_RESERVED },
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{ TVP7002_FINE_CLAMP_CTL, 0x07, TVP7002_WRITE },
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/* PWR_CTL is controlled only by the probe and reset functions */
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{ TVP7002_PWR_CTL, 0x00, TVP7002_RESERVED },
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{ TVP7002_ADC_SETUP, 0x50, TVP7002_WRITE },
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{ TVP7002_COARSE_CLAMP_CTL, 0x00, TVP7002_WRITE },
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{ TVP7002_SOG_CLAMP, 0x80, TVP7002_WRITE },
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{ TVP7002_RGB_COARSE_CLAMP_CTL, 0x8c, TVP7002_WRITE },
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{ TVP7002_SOG_COARSE_CLAMP_CTL, 0x04, TVP7002_WRITE },
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{ TVP7002_ALC_PLACEMENT, 0x5a, TVP7002_WRITE },
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{ 0x32, 0x18, TVP7002_RESERVED },
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{ 0x33, 0x60, TVP7002_RESERVED },
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{ TVP7002_MVIS_STRIPPER_W, 0xff, TVP7002_RESERVED },
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{ TVP7002_VSYNC_ALGN, 0x10, TVP7002_WRITE },
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{ TVP7002_SYNC_BYPASS, 0x00, TVP7002_WRITE },
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{ TVP7002_L_FRAME_STAT_LSBS, 0xff, TVP7002_READ },
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{ TVP7002_L_FRAME_STAT_MSBS, 0xff, TVP7002_READ },
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{ TVP7002_CLK_L_STAT_LSBS, 0xff, TVP7002_READ },
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{ TVP7002_CLK_L_STAT_MSBS, 0xff, TVP7002_READ },
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{ TVP7002_HSYNC_W, 0xff, TVP7002_READ },
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{ TVP7002_VSYNC_W, 0xff, TVP7002_READ },
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{ TVP7002_L_LENGTH_TOL, 0x03, TVP7002_WRITE },
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{ 0x3e, 0x60, TVP7002_RESERVED },
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{ TVP7002_VIDEO_BWTH_CTL, 0x01, TVP7002_WRITE },
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{ TVP7002_AVID_START_PIXEL_LSBS, 0x01, TVP7002_WRITE },
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{ TVP7002_AVID_START_PIXEL_MSBS, 0x2c, TVP7002_WRITE },
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{ TVP7002_AVID_STOP_PIXEL_LSBS, 0x06, TVP7002_WRITE },
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{ TVP7002_AVID_STOP_PIXEL_MSBS, 0x2c, TVP7002_WRITE },
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{ TVP7002_VBLK_F_0_START_L_OFF, 0x05, TVP7002_WRITE },
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{ TVP7002_VBLK_F_1_START_L_OFF, 0x00, TVP7002_WRITE },
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{ TVP7002_VBLK_F_0_DURATION, 0x1e, TVP7002_WRITE },
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{ TVP7002_VBLK_F_1_DURATION, 0x00, TVP7002_WRITE },
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{ TVP7002_FBIT_F_0_START_L_OFF, 0x00, TVP7002_WRITE },
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{ TVP7002_FBIT_F_1_START_L_OFF, 0x00, TVP7002_WRITE },
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{ TVP7002_YUV_Y_G_COEF_LSBS, 0xe3, TVP7002_WRITE },
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{ TVP7002_YUV_Y_G_COEF_MSBS, 0x16, TVP7002_WRITE },
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{ TVP7002_YUV_Y_B_COEF_LSBS, 0x4f, TVP7002_WRITE },
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{ TVP7002_YUV_Y_B_COEF_MSBS, 0x02, TVP7002_WRITE },
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{ TVP7002_YUV_Y_R_COEF_LSBS, 0xce, TVP7002_WRITE },
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{ TVP7002_YUV_Y_R_COEF_MSBS, 0x06, TVP7002_WRITE },
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{ TVP7002_YUV_U_G_COEF_LSBS, 0xab, TVP7002_WRITE },
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{ TVP7002_YUV_U_G_COEF_MSBS, 0xf3, TVP7002_WRITE },
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{ TVP7002_YUV_U_B_COEF_LSBS, 0x00, TVP7002_WRITE },
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{ TVP7002_YUV_U_B_COEF_MSBS, 0x10, TVP7002_WRITE },
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{ TVP7002_YUV_U_R_COEF_LSBS, 0x55, TVP7002_WRITE },
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{ TVP7002_YUV_U_R_COEF_MSBS, 0xfc, TVP7002_WRITE },
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{ TVP7002_YUV_V_G_COEF_LSBS, 0x78, TVP7002_WRITE },
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{ TVP7002_YUV_V_G_COEF_MSBS, 0xf1, TVP7002_WRITE },
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{ TVP7002_YUV_V_B_COEF_LSBS, 0x88, TVP7002_WRITE },
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{ TVP7002_YUV_V_B_COEF_MSBS, 0xfe, TVP7002_WRITE },
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{ TVP7002_YUV_V_R_COEF_LSBS, 0x00, TVP7002_WRITE },
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{ TVP7002_YUV_V_R_COEF_MSBS, 0x10, TVP7002_WRITE },
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/* This signals end of register values */
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{ TVP7002_EOR, 0xff, TVP7002_RESERVED }
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};
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/* Register parameters for 480P */
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static const struct i2c_reg_value tvp7002_parms_480P[] = {
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{ TVP7002_HPLL_FDBK_DIV_MSBS, 0x35, TVP7002_WRITE },
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{ TVP7002_HPLL_FDBK_DIV_LSBS, 0xa0, TVP7002_WRITE },
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{ TVP7002_HPLL_CRTL, 0x02, TVP7002_WRITE },
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{ TVP7002_AVID_START_PIXEL_LSBS, 0x91, TVP7002_WRITE },
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{ TVP7002_AVID_START_PIXEL_MSBS, 0x00, TVP7002_WRITE },
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{ TVP7002_AVID_STOP_PIXEL_LSBS, 0x0B, TVP7002_WRITE },
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{ TVP7002_AVID_STOP_PIXEL_MSBS, 0x00, TVP7002_WRITE },
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{ TVP7002_VBLK_F_0_START_L_OFF, 0x03, TVP7002_WRITE },
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{ TVP7002_VBLK_F_1_START_L_OFF, 0x01, TVP7002_WRITE },
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{ TVP7002_VBLK_F_0_DURATION, 0x13, TVP7002_WRITE },
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{ TVP7002_VBLK_F_1_DURATION, 0x13, TVP7002_WRITE },
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{ TVP7002_ALC_PLACEMENT, 0x18, TVP7002_WRITE },
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{ TVP7002_CLAMP_START, 0x06, TVP7002_WRITE },
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{ TVP7002_CLAMP_W, 0x10, TVP7002_WRITE },
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{ TVP7002_HPLL_PRE_COAST, 0x03, TVP7002_WRITE },
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{ TVP7002_HPLL_POST_COAST, 0x03, TVP7002_WRITE },
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{ TVP7002_EOR, 0xff, TVP7002_RESERVED }
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};
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/* Register parameters for 576P */
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static const struct i2c_reg_value tvp7002_parms_576P[] = {
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{ TVP7002_HPLL_FDBK_DIV_MSBS, 0x36, TVP7002_WRITE },
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{ TVP7002_HPLL_FDBK_DIV_LSBS, 0x00, TVP7002_WRITE },
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{ TVP7002_HPLL_CRTL, 0x18, TVP7002_WRITE },
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{ TVP7002_AVID_START_PIXEL_LSBS, 0x9B, TVP7002_WRITE },
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{ TVP7002_AVID_START_PIXEL_MSBS, 0x00, TVP7002_WRITE },
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{ TVP7002_AVID_STOP_PIXEL_LSBS, 0x0F, TVP7002_WRITE },
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{ TVP7002_AVID_STOP_PIXEL_MSBS, 0x00, TVP7002_WRITE },
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{ TVP7002_VBLK_F_0_START_L_OFF, 0x00, TVP7002_WRITE },
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{ TVP7002_VBLK_F_1_START_L_OFF, 0x00, TVP7002_WRITE },
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{ TVP7002_VBLK_F_0_DURATION, 0x2D, TVP7002_WRITE },
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{ TVP7002_VBLK_F_1_DURATION, 0x00, TVP7002_WRITE },
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{ TVP7002_ALC_PLACEMENT, 0x18, TVP7002_WRITE },
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{ TVP7002_CLAMP_START, 0x06, TVP7002_WRITE },
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{ TVP7002_CLAMP_W, 0x10, TVP7002_WRITE },
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{ TVP7002_HPLL_PRE_COAST, 0x03, TVP7002_WRITE },
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{ TVP7002_HPLL_POST_COAST, 0x03, TVP7002_WRITE },
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{ TVP7002_EOR, 0xff, TVP7002_RESERVED }
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};
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/* Register parameters for 1080I60 */
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static const struct i2c_reg_value tvp7002_parms_1080I60[] = {
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{ TVP7002_HPLL_FDBK_DIV_MSBS, 0x89, TVP7002_WRITE },
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{ TVP7002_HPLL_FDBK_DIV_LSBS, 0x80, TVP7002_WRITE },
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{ TVP7002_HPLL_CRTL, 0x98, TVP7002_WRITE },
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{ TVP7002_AVID_START_PIXEL_LSBS, 0x06, TVP7002_WRITE },
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{ TVP7002_AVID_START_PIXEL_MSBS, 0x01, TVP7002_WRITE },
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{ TVP7002_AVID_STOP_PIXEL_LSBS, 0x8a, TVP7002_WRITE },
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{ TVP7002_AVID_STOP_PIXEL_MSBS, 0x08, TVP7002_WRITE },
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{ TVP7002_VBLK_F_0_START_L_OFF, 0x02, TVP7002_WRITE },
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{ TVP7002_VBLK_F_1_START_L_OFF, 0x02, TVP7002_WRITE },
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{ TVP7002_VBLK_F_0_DURATION, 0x16, TVP7002_WRITE },
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{ TVP7002_VBLK_F_1_DURATION, 0x17, TVP7002_WRITE },
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{ TVP7002_ALC_PLACEMENT, 0x5a, TVP7002_WRITE },
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{ TVP7002_CLAMP_START, 0x32, TVP7002_WRITE },
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{ TVP7002_CLAMP_W, 0x20, TVP7002_WRITE },
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{ TVP7002_HPLL_PRE_COAST, 0x01, TVP7002_WRITE },
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{ TVP7002_HPLL_POST_COAST, 0x00, TVP7002_WRITE },
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{ TVP7002_EOR, 0xff, TVP7002_RESERVED }
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};
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/* Register parameters for 1080P60 */
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static const struct i2c_reg_value tvp7002_parms_1080P60[] = {
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{ TVP7002_HPLL_FDBK_DIV_MSBS, 0x89, TVP7002_WRITE },
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{ TVP7002_HPLL_FDBK_DIV_LSBS, 0x80, TVP7002_WRITE },
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{ TVP7002_HPLL_CRTL, 0xE0, TVP7002_WRITE },
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{ TVP7002_AVID_START_PIXEL_LSBS, 0x06, TVP7002_WRITE },
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{ TVP7002_AVID_START_PIXEL_MSBS, 0x01, TVP7002_WRITE },
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{ TVP7002_AVID_STOP_PIXEL_LSBS, 0x8a, TVP7002_WRITE },
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{ TVP7002_AVID_STOP_PIXEL_MSBS, 0x08, TVP7002_WRITE },
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{ TVP7002_VBLK_F_0_START_L_OFF, 0x02, TVP7002_WRITE },
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{ TVP7002_VBLK_F_1_START_L_OFF, 0x02, TVP7002_WRITE },
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{ TVP7002_VBLK_F_0_DURATION, 0x16, TVP7002_WRITE },
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{ TVP7002_VBLK_F_1_DURATION, 0x17, TVP7002_WRITE },
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{ TVP7002_ALC_PLACEMENT, 0x5a, TVP7002_WRITE },
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{ TVP7002_CLAMP_START, 0x32, TVP7002_WRITE },
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{ TVP7002_CLAMP_W, 0x20, TVP7002_WRITE },
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{ TVP7002_HPLL_PRE_COAST, 0x01, TVP7002_WRITE },
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{ TVP7002_HPLL_POST_COAST, 0x00, TVP7002_WRITE },
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{ TVP7002_EOR, 0xff, TVP7002_RESERVED }
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};
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/* Register parameters for 1080I50 */
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static const struct i2c_reg_value tvp7002_parms_1080I50[] = {
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{ TVP7002_HPLL_FDBK_DIV_MSBS, 0xa5, TVP7002_WRITE },
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{ TVP7002_HPLL_FDBK_DIV_LSBS, 0x00, TVP7002_WRITE },
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{ TVP7002_HPLL_CRTL, 0x98, TVP7002_WRITE },
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{ TVP7002_AVID_START_PIXEL_LSBS, 0x06, TVP7002_WRITE },
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{ TVP7002_AVID_START_PIXEL_MSBS, 0x01, TVP7002_WRITE },
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{ TVP7002_AVID_STOP_PIXEL_LSBS, 0x8a, TVP7002_WRITE },
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{ TVP7002_AVID_STOP_PIXEL_MSBS, 0x08, TVP7002_WRITE },
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{ TVP7002_VBLK_F_0_START_L_OFF, 0x02, TVP7002_WRITE },
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{ TVP7002_VBLK_F_1_START_L_OFF, 0x02, TVP7002_WRITE },
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{ TVP7002_VBLK_F_0_DURATION, 0x16, TVP7002_WRITE },
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{ TVP7002_VBLK_F_1_DURATION, 0x17, TVP7002_WRITE },
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{ TVP7002_ALC_PLACEMENT, 0x5a, TVP7002_WRITE },
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{ TVP7002_CLAMP_START, 0x32, TVP7002_WRITE },
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{ TVP7002_CLAMP_W, 0x20, TVP7002_WRITE },
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{ TVP7002_HPLL_PRE_COAST, 0x01, TVP7002_WRITE },
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{ TVP7002_HPLL_POST_COAST, 0x00, TVP7002_WRITE },
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{ TVP7002_EOR, 0xff, TVP7002_RESERVED }
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};
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/* 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, 0x20, TVP7002_WRITE },
|
|
{ TVP7002_HPLL_CRTL, 0xa0, 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, 0xc0, TVP7002_WRITE },
|
|
{ TVP7002_HPLL_CRTL, 0x98, 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 }
|
|
};
|
|
|
|
/* Preset definition for handling device operation */
|
|
struct tvp7002_preset_definition {
|
|
u32 preset;
|
|
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[] = {
|
|
{
|
|
V4L2_DV_720P60,
|
|
tvp7002_parms_720P60,
|
|
V4L2_COLORSPACE_REC709,
|
|
V4L2_FIELD_NONE,
|
|
1,
|
|
0x2EE,
|
|
135,
|
|
153
|
|
},
|
|
{
|
|
V4L2_DV_1080I60,
|
|
tvp7002_parms_1080I60,
|
|
V4L2_COLORSPACE_REC709,
|
|
V4L2_FIELD_INTERLACED,
|
|
0,
|
|
0x465,
|
|
181,
|
|
205
|
|
},
|
|
{
|
|
V4L2_DV_1080I50,
|
|
tvp7002_parms_1080I50,
|
|
V4L2_COLORSPACE_REC709,
|
|
V4L2_FIELD_INTERLACED,
|
|
0,
|
|
0x465,
|
|
217,
|
|
245
|
|
},
|
|
{
|
|
V4L2_DV_720P50,
|
|
tvp7002_parms_720P50,
|
|
V4L2_COLORSPACE_REC709,
|
|
V4L2_FIELD_NONE,
|
|
1,
|
|
0x2EE,
|
|
163,
|
|
183
|
|
},
|
|
{
|
|
V4L2_DV_1080P60,
|
|
tvp7002_parms_1080P60,
|
|
V4L2_COLORSPACE_REC709,
|
|
V4L2_FIELD_NONE,
|
|
1,
|
|
0x465,
|
|
90,
|
|
102
|
|
},
|
|
{
|
|
V4L2_DV_480P59_94,
|
|
tvp7002_parms_480P,
|
|
V4L2_COLORSPACE_SMPTE170M,
|
|
V4L2_FIELD_NONE,
|
|
1,
|
|
0x20D,
|
|
0xffff,
|
|
0xffff
|
|
},
|
|
{
|
|
V4L2_DV_576P50,
|
|
tvp7002_parms_576P,
|
|
V4L2_COLORSPACE_SMPTE170M,
|
|
V4L2_FIELD_NONE,
|
|
1,
|
|
0x271,
|
|
0xffff,
|
|
0xffff
|
|
}
|
|
};
|
|
|
|
#define NUM_PRESETS ARRAY_SIZE(tvp7002_presets)
|
|
|
|
/* Device definition */
|
|
struct tvp7002 {
|
|
struct v4l2_subdev sd;
|
|
struct v4l2_ctrl_handler hdl;
|
|
const struct tvp7002_config *pdata;
|
|
|
|
int ver;
|
|
int streaming;
|
|
|
|
const struct tvp7002_preset_definition *current_preset;
|
|
};
|
|
|
|
/*
|
|
* 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);
|
|
}
|
|
|
|
static inline struct v4l2_subdev *to_sd(struct v4l2_ctrl *ctrl)
|
|
{
|
|
return &container_of(ctrl->handler, struct tvp7002, hdl)->sd;
|
|
}
|
|
|
|
/*
|
|
* tvp7002_read - Read a value from a register in an TVP7002
|
|
* @sd: ptr to v4l2_subdev struct
|
|
* @addr: 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
|
|
* @err: 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
|
|
* @err: 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
|
|
* @dv_preset: ptr to v4l2_dv_preset struct
|
|
*
|
|
* 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)
|
|
{
|
|
struct tvp7002 *device = to_tvp7002(sd);
|
|
u32 preset;
|
|
int i;
|
|
|
|
for (i = 0; i < NUM_PRESETS; i++) {
|
|
preset = tvp7002_presets[i].preset;
|
|
if (preset == dv_preset->preset) {
|
|
device->current_preset = &tvp7002_presets[i];
|
|
return tvp7002_write_inittab(sd, tvp7002_presets[i].p_settings);
|
|
}
|
|
}
|
|
|
|
return -EINVAL;
|
|
}
|
|
|
|
/*
|
|
* tvp7002_s_ctrl() - Set a control
|
|
* @ctrl: ptr to v4l2_ctrl 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_ctrl *ctrl)
|
|
{
|
|
struct v4l2_subdev *sd = to_sd(ctrl);
|
|
int error = 0;
|
|
|
|
switch (ctrl->id) {
|
|
case V4L2_CID_GAIN:
|
|
tvp7002_write_err(sd, TVP7002_R_FINE_GAIN, ctrl->val, &error);
|
|
tvp7002_write_err(sd, TVP7002_G_FINE_GAIN, ctrl->val, &error);
|
|
tvp7002_write_err(sd, TVP7002_B_FINE_GAIN, ctrl->val, &error);
|
|
return error;
|
|
}
|
|
return -EINVAL;
|
|
}
|
|
|
|
/*
|
|
* tvp7002_mbus_fmt() - V4L2 decoder interface handler for try/s/g_mbus_fmt
|
|
* @sd: pointer to standard V4L2 sub-device structure
|
|
* @f: pointer to mediabus format structure
|
|
*
|
|
* Negotiate the image capture size and mediabus format.
|
|
* There is only one possible format, so this single function works for
|
|
* get, set and try.
|
|
*/
|
|
static int tvp7002_mbus_fmt(struct v4l2_subdev *sd, struct v4l2_mbus_framefmt *f)
|
|
{
|
|
struct tvp7002 *device = to_tvp7002(sd);
|
|
struct v4l2_dv_enum_preset e_preset;
|
|
int error;
|
|
|
|
/* Calculate height and width based on current standard */
|
|
error = v4l_fill_dv_preset_info(device->current_preset->preset, &e_preset);
|
|
if (error)
|
|
return error;
|
|
|
|
f->width = e_preset.width;
|
|
f->height = e_preset.height;
|
|
f->code = V4L2_MBUS_FMT_YUYV10_1X20;
|
|
f->field = device->current_preset->scanmode;
|
|
f->colorspace = device->current_preset->color_space;
|
|
|
|
v4l2_dbg(1, debug, sd, "MBUS_FMT: Width - %d, Height - %d",
|
|
f->width, f->height);
|
|
return 0;
|
|
}
|
|
|
|
/*
|
|
* tvp7002_query_dv_preset() - query DV preset
|
|
* @sd: pointer to standard V4L2 sub-device structure
|
|
* @qpreset: standard V4L2 v4l2_dv_preset structure
|
|
*
|
|
* 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)
|
|
{
|
|
const struct tvp7002_preset_definition *presets = tvp7002_presets;
|
|
struct tvp7002 *device;
|
|
u8 progressive;
|
|
u32 lpfr;
|
|
u32 cpln;
|
|
int error = 0;
|
|
u8 lpf_lsb;
|
|
u8 lpf_msb;
|
|
u8 cpl_lsb;
|
|
u8 cpl_msb;
|
|
int index;
|
|
|
|
/* Return invalid preset if no active input is detected */
|
|
qpreset->preset = V4L2_DV_INVALID;
|
|
|
|
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 error;
|
|
|
|
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 error;
|
|
|
|
/* 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++, presets++)
|
|
if (lpfr == presets->lines_per_frame &&
|
|
progressive == presets->progressive) {
|
|
if (presets->cpl_min == 0xffff)
|
|
break;
|
|
if (cpln >= presets->cpl_min && cpln <= presets->cpl_max)
|
|
break;
|
|
}
|
|
|
|
if (index == NUM_PRESETS) {
|
|
v4l2_dbg(1, debug, sd, "detection failed: lpf = %x, cpl = %x\n",
|
|
lpfr, cpln);
|
|
return 0;
|
|
}
|
|
|
|
/* Set values in found preset */
|
|
qpreset->preset = presets->preset;
|
|
|
|
/* Update lines per frame and clocks per line info */
|
|
v4l2_dbg(1, debug, sd, "detected preset: %d\n", presets->preset);
|
|
return 0;
|
|
}
|
|
|
|
#ifdef CONFIG_VIDEO_ADV_DEBUG
|
|
/*
|
|
* tvp7002_g_register() - Get the value of a register
|
|
* @sd: ptr to v4l2_subdev struct
|
|
* @reg: 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 disabled 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);
|
|
u8 val;
|
|
int ret;
|
|
|
|
if (!v4l2_chip_match_i2c_client(client, ®->match))
|
|
return -EINVAL;
|
|
if (!capable(CAP_SYS_ADMIN))
|
|
return -EPERM;
|
|
|
|
ret = tvp7002_read(sd, reg->reg & 0xff, &val);
|
|
reg->val = val;
|
|
return ret;
|
|
}
|
|
|
|
/*
|
|
* tvp7002_s_register() - set a control
|
|
* @sd: ptr to v4l2_subdev struct
|
|
* @reg: 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
|
|
* -EPERM if call not allowed.
|
|
*/
|
|
static int tvp7002_s_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 tvp7002_write(sd, reg->reg & 0xff, reg->val & 0xff);
|
|
}
|
|
#endif
|
|
|
|
/*
|
|
* tvp7002_enum_mbus_fmt() - Enum supported mediabus formats
|
|
* @sd: pointer to standard V4L2 sub-device structure
|
|
* @index: format index
|
|
* @code: pointer to mediabus format
|
|
*
|
|
* Enumerate supported mediabus formats.
|
|
*/
|
|
|
|
static int tvp7002_enum_mbus_fmt(struct v4l2_subdev *sd, unsigned index,
|
|
enum v4l2_mbus_pixelcode *code)
|
|
{
|
|
/* Check requested format index is within range */
|
|
if (index)
|
|
return -EINVAL;
|
|
*code = V4L2_MBUS_FMT_YUYV10_1X20;
|
|
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) */
|
|
error = tvp7002_write(sd, TVP7002_MISC_CTL_2, 0x00);
|
|
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");
|
|
|
|
device->streaming = enable;
|
|
}
|
|
|
|
return error;
|
|
}
|
|
|
|
/*
|
|
* 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)
|
|
{
|
|
const struct tvp7002_preset_definition *presets = tvp7002_presets;
|
|
struct tvp7002 *device = to_tvp7002(sd);
|
|
struct v4l2_dv_enum_preset e_preset;
|
|
struct v4l2_dv_preset detected;
|
|
int i;
|
|
|
|
detected.preset = V4L2_DV_INVALID;
|
|
/* Find my current standard*/
|
|
tvp7002_query_dv_preset(sd, &detected);
|
|
|
|
/* Print standard related code values */
|
|
for (i = 0; i < NUM_PRESETS; i++, presets++)
|
|
if (presets->preset == detected.preset)
|
|
break;
|
|
|
|
if (v4l_fill_dv_preset_info(device->current_preset->preset, &e_preset))
|
|
return -EINVAL;
|
|
|
|
v4l2_info(sd, "Selected DV Preset: %s\n", e_preset.name);
|
|
v4l2_info(sd, " Pixels per line: %u\n", e_preset.width);
|
|
v4l2_info(sd, " Lines per frame: %u\n\n", e_preset.height);
|
|
if (i == NUM_PRESETS) {
|
|
v4l2_info(sd, "Detected DV Preset: None\n");
|
|
} else {
|
|
if (v4l_fill_dv_preset_info(presets->preset, &e_preset))
|
|
return -EINVAL;
|
|
v4l2_info(sd, "Detected DV Preset: %s\n", e_preset.name);
|
|
v4l2_info(sd, " Pixels per line: %u\n", e_preset.width);
|
|
v4l2_info(sd, " Lines per frame: %u\n\n", e_preset.height);
|
|
}
|
|
v4l2_info(sd, "Streaming enabled: %s\n",
|
|
device->streaming ? "yes" : "no");
|
|
|
|
/* Print the current value of the gain control */
|
|
v4l2_ctrl_handler_log_status(&device->hdl, sd->name);
|
|
|
|
return 0;
|
|
}
|
|
|
|
/*
|
|
* tvp7002_enum_dv_presets() - Enum supported digital video formats
|
|
* @sd: pointer to standard V4L2 sub-device structure
|
|
* @preset: pointer to format struct
|
|
*
|
|
* Enumerate supported digital video formats.
|
|
*/
|
|
static int tvp7002_enum_dv_presets(struct v4l2_subdev *sd,
|
|
struct v4l2_dv_enum_preset *preset)
|
|
{
|
|
/* Check requested format index is within range */
|
|
if (preset->index >= NUM_PRESETS)
|
|
return -EINVAL;
|
|
|
|
return v4l_fill_dv_preset_info(tvp7002_presets[preset->index].preset, preset);
|
|
}
|
|
|
|
static const struct v4l2_ctrl_ops tvp7002_ctrl_ops = {
|
|
.s_ctrl = tvp7002_s_ctrl,
|
|
};
|
|
|
|
/* 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_ext_ctrls = v4l2_subdev_g_ext_ctrls,
|
|
.try_ext_ctrls = v4l2_subdev_try_ext_ctrls,
|
|
.s_ext_ctrls = v4l2_subdev_s_ext_ctrls,
|
|
.g_ctrl = v4l2_subdev_g_ctrl,
|
|
.s_ctrl = v4l2_subdev_s_ctrl,
|
|
.queryctrl = v4l2_subdev_queryctrl,
|
|
.querymenu = v4l2_subdev_querymenu,
|
|
#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 = {
|
|
.enum_dv_presets = tvp7002_enum_dv_presets,
|
|
.s_dv_preset = tvp7002_s_dv_preset,
|
|
.query_dv_preset = tvp7002_query_dv_preset,
|
|
.s_stream = tvp7002_s_stream,
|
|
.g_mbus_fmt = tvp7002_mbus_fmt,
|
|
.try_mbus_fmt = tvp7002_mbus_fmt,
|
|
.s_mbus_fmt = tvp7002_mbus_fmt,
|
|
.enum_mbus_fmt = tvp7002_enum_mbus_fmt,
|
|
};
|
|
|
|
/* V4L2 top level operation handlers */
|
|
static const struct v4l2_subdev_ops tvp7002_ops = {
|
|
.core = &tvp7002_core_ops,
|
|
.video = &tvp7002_video_ops,
|
|
};
|
|
|
|
/*
|
|
* tvp7002_probe - Probe a TVP7002 device
|
|
* @c: ptr to i2c_client struct
|
|
* @id: ptr to i2c_device_id struct
|
|
*
|
|
* Initialize the TVP7002 device
|
|
* Returns zero when successful, -EINVAL if register read fails or
|
|
* -EIO if i2c access is not available.
|
|
*/
|
|
static int tvp7002_probe(struct i2c_client *c, const struct i2c_device_id *id)
|
|
{
|
|
struct v4l2_subdev *sd;
|
|
struct tvp7002 *device;
|
|
struct v4l2_dv_preset preset;
|
|
int polarity_a;
|
|
int polarity_b;
|
|
u8 revision;
|
|
|
|
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) {
|
|
v4l_err(c, "No platform data!!\n");
|
|
return -ENODEV;
|
|
}
|
|
|
|
device = kzalloc(sizeof(struct tvp7002), GFP_KERNEL);
|
|
|
|
if (!device)
|
|
return -ENOMEM;
|
|
|
|
sd = &device->sd;
|
|
device->pdata = c->dev.platform_data;
|
|
device->current_preset = tvp7002_presets;
|
|
|
|
/* 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);
|
|
|
|
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");
|
|
|
|
/* 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 = device->current_preset->preset;
|
|
error = tvp7002_s_dv_preset(sd, &preset);
|
|
|
|
v4l2_ctrl_handler_init(&device->hdl, 1);
|
|
v4l2_ctrl_new_std(&device->hdl, &tvp7002_ctrl_ops,
|
|
V4L2_CID_GAIN, 0, 255, 1, 0);
|
|
sd->ctrl_handler = &device->hdl;
|
|
if (device->hdl.error) {
|
|
int err = device->hdl.error;
|
|
|
|
v4l2_ctrl_handler_free(&device->hdl);
|
|
kfree(device);
|
|
return err;
|
|
}
|
|
v4l2_ctrl_handler_setup(&device->hdl);
|
|
|
|
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);
|
|
v4l2_ctrl_handler_free(&device->hdl);
|
|
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.
|
|
* Return 0 on success or error code 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 nothing.
|
|
*/
|
|
static void __exit tvp7002_exit(void)
|
|
{
|
|
i2c_del_driver(&tvp7002_driver);
|
|
}
|
|
|
|
module_init(tvp7002_init);
|
|
module_exit(tvp7002_exit);
|