media: i2c: Copy tw9910 soc_camera sensor driver
Copy the soc_camera based driver in v4l2 sensor driver directory. This commit just copies the original file without modifying it. No modification to KConfig and Makefile as soc_camera framework dependencies need to be removed first in next commit. Signed-off-by: Jacopo Mondi <jacopo+renesas@jmondi.org> Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
This commit is contained in:
Jacopo Mondi
Mauro Carvalho Chehab
parent
41a7418f09
commit
e0d76c3842
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@ -0,0 +1,999 @@
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/*
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* tw9910 Video Driver
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*
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* Copyright (C) 2008 Renesas Solutions Corp.
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* Kuninori Morimoto <morimoto.kuninori@renesas.com>
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*
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* Based on ov772x driver,
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*
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* Copyright (C) 2008 Kuninori Morimoto <morimoto.kuninori@renesas.com>
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* Copyright 2006-7 Jonathan Corbet <corbet@lwn.net>
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* Copyright (C) 2008 Magnus Damm
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* Copyright (C) 2008, Guennadi Liakhovetski <kernel@pengutronix.de>
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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 version 2 as
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* published by the Free Software Foundation.
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*/
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#include <linux/init.h>
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#include <linux/module.h>
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#include <linux/i2c.h>
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#include <linux/slab.h>
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#include <linux/kernel.h>
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#include <linux/delay.h>
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#include <linux/v4l2-mediabus.h>
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#include <linux/videodev2.h>
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#include <media/soc_camera.h>
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#include <media/i2c/tw9910.h>
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#include <media/v4l2-clk.h>
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#include <media/v4l2-subdev.h>
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#define GET_ID(val) ((val & 0xF8) >> 3)
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#define GET_REV(val) (val & 0x07)
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/*
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* register offset
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*/
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#define ID 0x00 /* Product ID Code Register */
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#define STATUS1 0x01 /* Chip Status Register I */
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#define INFORM 0x02 /* Input Format */
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#define OPFORM 0x03 /* Output Format Control Register */
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#define DLYCTR 0x04 /* Hysteresis and HSYNC Delay Control */
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#define OUTCTR1 0x05 /* Output Control I */
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#define ACNTL1 0x06 /* Analog Control Register 1 */
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#define CROP_HI 0x07 /* Cropping Register, High */
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#define VDELAY_LO 0x08 /* Vertical Delay Register, Low */
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#define VACTIVE_LO 0x09 /* Vertical Active Register, Low */
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#define HDELAY_LO 0x0A /* Horizontal Delay Register, Low */
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#define HACTIVE_LO 0x0B /* Horizontal Active Register, Low */
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#define CNTRL1 0x0C /* Control Register I */
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#define VSCALE_LO 0x0D /* Vertical Scaling Register, Low */
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#define SCALE_HI 0x0E /* Scaling Register, High */
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#define HSCALE_LO 0x0F /* Horizontal Scaling Register, Low */
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#define BRIGHT 0x10 /* BRIGHTNESS Control Register */
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#define CONTRAST 0x11 /* CONTRAST Control Register */
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#define SHARPNESS 0x12 /* SHARPNESS Control Register I */
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#define SAT_U 0x13 /* Chroma (U) Gain Register */
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#define SAT_V 0x14 /* Chroma (V) Gain Register */
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#define HUE 0x15 /* Hue Control Register */
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#define CORING1 0x17
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#define CORING2 0x18 /* Coring and IF compensation */
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#define VBICNTL 0x19 /* VBI Control Register */
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#define ACNTL2 0x1A /* Analog Control 2 */
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#define OUTCTR2 0x1B /* Output Control 2 */
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#define SDT 0x1C /* Standard Selection */
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#define SDTR 0x1D /* Standard Recognition */
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#define TEST 0x1F /* Test Control Register */
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#define CLMPG 0x20 /* Clamping Gain */
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#define IAGC 0x21 /* Individual AGC Gain */
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#define AGCGAIN 0x22 /* AGC Gain */
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#define PEAKWT 0x23 /* White Peak Threshold */
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#define CLMPL 0x24 /* Clamp level */
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#define SYNCT 0x25 /* Sync Amplitude */
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#define MISSCNT 0x26 /* Sync Miss Count Register */
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#define PCLAMP 0x27 /* Clamp Position Register */
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#define VCNTL1 0x28 /* Vertical Control I */
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#define VCNTL2 0x29 /* Vertical Control II */
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#define CKILL 0x2A /* Color Killer Level Control */
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#define COMB 0x2B /* Comb Filter Control */
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#define LDLY 0x2C /* Luma Delay and H Filter Control */
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#define MISC1 0x2D /* Miscellaneous Control I */
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#define LOOP 0x2E /* LOOP Control Register */
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#define MISC2 0x2F /* Miscellaneous Control II */
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#define MVSN 0x30 /* Macrovision Detection */
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#define STATUS2 0x31 /* Chip STATUS II */
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#define HFREF 0x32 /* H monitor */
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#define CLMD 0x33 /* CLAMP MODE */
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#define IDCNTL 0x34 /* ID Detection Control */
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#define CLCNTL1 0x35 /* Clamp Control I */
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#define ANAPLLCTL 0x4C
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#define VBIMIN 0x4D
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#define HSLOWCTL 0x4E
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#define WSS3 0x4F
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#define FILLDATA 0x50
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#define SDID 0x51
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#define DID 0x52
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#define WSS1 0x53
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#define WSS2 0x54
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#define VVBI 0x55
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#define LCTL6 0x56
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#define LCTL7 0x57
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#define LCTL8 0x58
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#define LCTL9 0x59
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#define LCTL10 0x5A
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#define LCTL11 0x5B
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#define LCTL12 0x5C
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#define LCTL13 0x5D
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#define LCTL14 0x5E
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#define LCTL15 0x5F
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#define LCTL16 0x60
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#define LCTL17 0x61
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#define LCTL18 0x62
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#define LCTL19 0x63
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#define LCTL20 0x64
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#define LCTL21 0x65
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#define LCTL22 0x66
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#define LCTL23 0x67
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#define LCTL24 0x68
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#define LCTL25 0x69
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#define LCTL26 0x6A
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#define HSBEGIN 0x6B
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#define HSEND 0x6C
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#define OVSDLY 0x6D
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#define OVSEND 0x6E
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#define VBIDELAY 0x6F
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/*
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* register detail
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*/
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/* INFORM */
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#define FC27_ON 0x40 /* 1 : Input crystal clock frequency is 27MHz */
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#define FC27_FF 0x00 /* 0 : Square pixel mode. */
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/* Must use 24.54MHz for 60Hz field rate */
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/* source or 29.5MHz for 50Hz field rate */
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#define IFSEL_S 0x10 /* 01 : S-video decoding */
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#define IFSEL_C 0x00 /* 00 : Composite video decoding */
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/* Y input video selection */
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#define YSEL_M0 0x00 /* 00 : Mux0 selected */
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#define YSEL_M1 0x04 /* 01 : Mux1 selected */
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#define YSEL_M2 0x08 /* 10 : Mux2 selected */
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#define YSEL_M3 0x10 /* 11 : Mux3 selected */
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/* OPFORM */
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#define MODE 0x80 /* 0 : CCIR601 compatible YCrCb 4:2:2 format */
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/* 1 : ITU-R-656 compatible data sequence format */
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#define LEN 0x40 /* 0 : 8-bit YCrCb 4:2:2 output format */
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/* 1 : 16-bit YCrCb 4:2:2 output format.*/
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#define LLCMODE 0x20 /* 1 : LLC output mode. */
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/* 0 : free-run output mode */
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#define AINC 0x10 /* Serial interface auto-indexing control */
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/* 0 : auto-increment */
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/* 1 : non-auto */
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#define VSCTL 0x08 /* 1 : Vertical out ctrl by DVALID */
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/* 0 : Vertical out ctrl by HACTIVE and DVALID */
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#define OEN_TRI_SEL_MASK 0x07
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#define OEN_TRI_SEL_ALL_ON 0x00 /* Enable output for Rev0/Rev1 */
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#define OEN_TRI_SEL_ALL_OFF_r0 0x06 /* All tri-stated for Rev0 */
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#define OEN_TRI_SEL_ALL_OFF_r1 0x07 /* All tri-stated for Rev1 */
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/* OUTCTR1 */
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#define VSP_LO 0x00 /* 0 : VS pin output polarity is active low */
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#define VSP_HI 0x80 /* 1 : VS pin output polarity is active high. */
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/* VS pin output control */
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#define VSSL_VSYNC 0x00 /* 0 : VSYNC */
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#define VSSL_VACT 0x10 /* 1 : VACT */
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#define VSSL_FIELD 0x20 /* 2 : FIELD */
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#define VSSL_VVALID 0x30 /* 3 : VVALID */
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#define VSSL_ZERO 0x70 /* 7 : 0 */
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#define HSP_LOW 0x00 /* 0 : HS pin output polarity is active low */
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#define HSP_HI 0x08 /* 1 : HS pin output polarity is active high.*/
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/* HS pin output control */
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#define HSSL_HACT 0x00 /* 0 : HACT */
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#define HSSL_HSYNC 0x01 /* 1 : HSYNC */
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#define HSSL_DVALID 0x02 /* 2 : DVALID */
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#define HSSL_HLOCK 0x03 /* 3 : HLOCK */
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#define HSSL_ASYNCW 0x04 /* 4 : ASYNCW */
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#define HSSL_ZERO 0x07 /* 7 : 0 */
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/* ACNTL1 */
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#define SRESET 0x80 /* resets the device to its default state
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* but all register content remain unchanged.
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* This bit is self-resetting.
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*/
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#define ACNTL1_PDN_MASK 0x0e
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#define CLK_PDN 0x08 /* system clock power down */
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#define Y_PDN 0x04 /* Luma ADC power down */
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#define C_PDN 0x02 /* Chroma ADC power down */
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/* ACNTL2 */
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#define ACNTL2_PDN_MASK 0x40
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#define PLL_PDN 0x40 /* PLL power down */
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/* VBICNTL */
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/* RTSEL : control the real time signal output from the MPOUT pin */
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#define RTSEL_MASK 0x07
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#define RTSEL_VLOSS 0x00 /* 0000 = Video loss */
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#define RTSEL_HLOCK 0x01 /* 0001 = H-lock */
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#define RTSEL_SLOCK 0x02 /* 0010 = S-lock */
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#define RTSEL_VLOCK 0x03 /* 0011 = V-lock */
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#define RTSEL_MONO 0x04 /* 0100 = MONO */
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#define RTSEL_DET50 0x05 /* 0101 = DET50 */
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#define RTSEL_FIELD 0x06 /* 0110 = FIELD */
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#define RTSEL_RTCO 0x07 /* 0111 = RTCO ( Real Time Control ) */
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/* HSYNC start and end are constant for now */
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#define HSYNC_START 0x0260
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#define HSYNC_END 0x0300
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/*
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* structure
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*/
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struct regval_list {
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unsigned char reg_num;
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unsigned char value;
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};
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struct tw9910_scale_ctrl {
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char *name;
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unsigned short width;
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unsigned short height;
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u16 hscale;
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u16 vscale;
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};
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struct tw9910_priv {
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struct v4l2_subdev subdev;
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struct v4l2_clk *clk;
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struct tw9910_video_info *info;
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const struct tw9910_scale_ctrl *scale;
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v4l2_std_id norm;
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u32 revision;
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};
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static const struct tw9910_scale_ctrl tw9910_ntsc_scales[] = {
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{
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.name = "NTSC SQ",
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.width = 640,
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.height = 480,
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.hscale = 0x0100,
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.vscale = 0x0100,
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},
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{
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.name = "NTSC CCIR601",
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.width = 720,
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.height = 480,
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.hscale = 0x0100,
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.vscale = 0x0100,
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},
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{
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.name = "NTSC SQ (CIF)",
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.width = 320,
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.height = 240,
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.hscale = 0x0200,
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.vscale = 0x0200,
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},
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{
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.name = "NTSC CCIR601 (CIF)",
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.width = 360,
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.height = 240,
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.hscale = 0x0200,
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.vscale = 0x0200,
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},
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{
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.name = "NTSC SQ (QCIF)",
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.width = 160,
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.height = 120,
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.hscale = 0x0400,
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.vscale = 0x0400,
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},
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{
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.name = "NTSC CCIR601 (QCIF)",
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.width = 180,
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.height = 120,
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.hscale = 0x0400,
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.vscale = 0x0400,
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},
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};
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static const struct tw9910_scale_ctrl tw9910_pal_scales[] = {
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{
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.name = "PAL SQ",
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.width = 768,
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.height = 576,
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.hscale = 0x0100,
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.vscale = 0x0100,
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},
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{
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.name = "PAL CCIR601",
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.width = 720,
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.height = 576,
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.hscale = 0x0100,
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.vscale = 0x0100,
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},
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{
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.name = "PAL SQ (CIF)",
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.width = 384,
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.height = 288,
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.hscale = 0x0200,
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.vscale = 0x0200,
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},
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{
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.name = "PAL CCIR601 (CIF)",
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.width = 360,
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.height = 288,
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.hscale = 0x0200,
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.vscale = 0x0200,
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},
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{
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.name = "PAL SQ (QCIF)",
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.width = 192,
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.height = 144,
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.hscale = 0x0400,
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.vscale = 0x0400,
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},
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{
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.name = "PAL CCIR601 (QCIF)",
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.width = 180,
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.height = 144,
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.hscale = 0x0400,
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.vscale = 0x0400,
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},
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};
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/*
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* general function
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*/
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static struct tw9910_priv *to_tw9910(const struct i2c_client *client)
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{
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return container_of(i2c_get_clientdata(client), struct tw9910_priv,
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subdev);
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}
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static int tw9910_mask_set(struct i2c_client *client, u8 command,
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u8 mask, u8 set)
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{
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s32 val = i2c_smbus_read_byte_data(client, command);
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if (val < 0)
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return val;
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val &= ~mask;
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val |= set & mask;
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return i2c_smbus_write_byte_data(client, command, val);
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}
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static int tw9910_set_scale(struct i2c_client *client,
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const struct tw9910_scale_ctrl *scale)
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{
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int ret;
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ret = i2c_smbus_write_byte_data(client, SCALE_HI,
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(scale->vscale & 0x0F00) >> 4 |
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(scale->hscale & 0x0F00) >> 8);
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if (ret < 0)
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return ret;
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ret = i2c_smbus_write_byte_data(client, HSCALE_LO,
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scale->hscale & 0x00FF);
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if (ret < 0)
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return ret;
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ret = i2c_smbus_write_byte_data(client, VSCALE_LO,
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scale->vscale & 0x00FF);
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return ret;
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}
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static int tw9910_set_hsync(struct i2c_client *client)
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{
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struct tw9910_priv *priv = to_tw9910(client);
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int ret;
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/* bit 10 - 3 */
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ret = i2c_smbus_write_byte_data(client, HSBEGIN,
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(HSYNC_START & 0x07F8) >> 3);
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if (ret < 0)
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return ret;
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/* bit 10 - 3 */
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ret = i2c_smbus_write_byte_data(client, HSEND,
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(HSYNC_END & 0x07F8) >> 3);
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if (ret < 0)
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return ret;
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/* So far only revisions 0 and 1 have been seen */
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/* bit 2 - 0 */
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if (1 == priv->revision)
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ret = tw9910_mask_set(client, HSLOWCTL, 0x77,
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(HSYNC_START & 0x0007) << 4 |
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(HSYNC_END & 0x0007));
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return ret;
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}
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static void tw9910_reset(struct i2c_client *client)
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{
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tw9910_mask_set(client, ACNTL1, SRESET, SRESET);
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msleep(1);
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}
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static int tw9910_power(struct i2c_client *client, int enable)
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{
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int ret;
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u8 acntl1;
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u8 acntl2;
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if (enable) {
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acntl1 = 0;
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acntl2 = 0;
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} else {
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acntl1 = CLK_PDN | Y_PDN | C_PDN;
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acntl2 = PLL_PDN;
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}
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ret = tw9910_mask_set(client, ACNTL1, ACNTL1_PDN_MASK, acntl1);
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if (ret < 0)
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return ret;
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return tw9910_mask_set(client, ACNTL2, ACNTL2_PDN_MASK, acntl2);
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}
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static const struct tw9910_scale_ctrl *tw9910_select_norm(v4l2_std_id norm,
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u32 width, u32 height)
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{
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const struct tw9910_scale_ctrl *scale;
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const struct tw9910_scale_ctrl *ret = NULL;
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__u32 diff = 0xffffffff, tmp;
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int size, i;
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if (norm & V4L2_STD_NTSC) {
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scale = tw9910_ntsc_scales;
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size = ARRAY_SIZE(tw9910_ntsc_scales);
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} else if (norm & V4L2_STD_PAL) {
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scale = tw9910_pal_scales;
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size = ARRAY_SIZE(tw9910_pal_scales);
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||||
} else {
|
||||
return NULL;
|
||||
}
|
||||
|
||||
for (i = 0; i < size; i++) {
|
||||
tmp = abs(width - scale[i].width) +
|
||||
abs(height - scale[i].height);
|
||||
if (tmp < diff) {
|
||||
diff = tmp;
|
||||
ret = scale + i;
|
||||
}
|
||||
}
|
||||
|
||||
return ret;
|
||||
}
|
||||
|
||||
/*
|
||||
* subdevice operations
|
||||
*/
|
||||
static int tw9910_s_stream(struct v4l2_subdev *sd, int enable)
|
||||
{
|
||||
struct i2c_client *client = v4l2_get_subdevdata(sd);
|
||||
struct tw9910_priv *priv = to_tw9910(client);
|
||||
u8 val;
|
||||
int ret;
|
||||
|
||||
if (!enable) {
|
||||
switch (priv->revision) {
|
||||
case 0:
|
||||
val = OEN_TRI_SEL_ALL_OFF_r0;
|
||||
break;
|
||||
case 1:
|
||||
val = OEN_TRI_SEL_ALL_OFF_r1;
|
||||
break;
|
||||
default:
|
||||
dev_err(&client->dev, "un-supported revision\n");
|
||||
return -EINVAL;
|
||||
}
|
||||
} else {
|
||||
val = OEN_TRI_SEL_ALL_ON;
|
||||
|
||||
if (!priv->scale) {
|
||||
dev_err(&client->dev, "norm select error\n");
|
||||
return -EPERM;
|
||||
}
|
||||
|
||||
dev_dbg(&client->dev, "%s %dx%d\n",
|
||||
priv->scale->name,
|
||||
priv->scale->width,
|
||||
priv->scale->height);
|
||||
}
|
||||
|
||||
ret = tw9910_mask_set(client, OPFORM, OEN_TRI_SEL_MASK, val);
|
||||
if (ret < 0)
|
||||
return ret;
|
||||
|
||||
return tw9910_power(client, enable);
|
||||
}
|
||||
|
||||
static int tw9910_g_std(struct v4l2_subdev *sd, v4l2_std_id *norm)
|
||||
{
|
||||
struct i2c_client *client = v4l2_get_subdevdata(sd);
|
||||
struct tw9910_priv *priv = to_tw9910(client);
|
||||
|
||||
*norm = priv->norm;
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int tw9910_s_std(struct v4l2_subdev *sd, v4l2_std_id norm)
|
||||
{
|
||||
struct i2c_client *client = v4l2_get_subdevdata(sd);
|
||||
struct tw9910_priv *priv = to_tw9910(client);
|
||||
const unsigned hact = 720;
|
||||
const unsigned hdelay = 15;
|
||||
unsigned vact;
|
||||
unsigned vdelay;
|
||||
int ret;
|
||||
|
||||
if (!(norm & (V4L2_STD_NTSC | V4L2_STD_PAL)))
|
||||
return -EINVAL;
|
||||
|
||||
priv->norm = norm;
|
||||
if (norm & V4L2_STD_525_60) {
|
||||
vact = 240;
|
||||
vdelay = 18;
|
||||
ret = tw9910_mask_set(client, VVBI, 0x10, 0x10);
|
||||
} else {
|
||||
vact = 288;
|
||||
vdelay = 24;
|
||||
ret = tw9910_mask_set(client, VVBI, 0x10, 0x00);
|
||||
}
|
||||
if (!ret)
|
||||
ret = i2c_smbus_write_byte_data(client, CROP_HI,
|
||||
((vdelay >> 2) & 0xc0) |
|
||||
((vact >> 4) & 0x30) |
|
||||
((hdelay >> 6) & 0x0c) |
|
||||
((hact >> 8) & 0x03));
|
||||
if (!ret)
|
||||
ret = i2c_smbus_write_byte_data(client, VDELAY_LO,
|
||||
vdelay & 0xff);
|
||||
if (!ret)
|
||||
ret = i2c_smbus_write_byte_data(client, VACTIVE_LO,
|
||||
vact & 0xff);
|
||||
|
||||
return ret;
|
||||
}
|
||||
|
||||
#ifdef CONFIG_VIDEO_ADV_DEBUG
|
||||
static int tw9910_g_register(struct v4l2_subdev *sd,
|
||||
struct v4l2_dbg_register *reg)
|
||||
{
|
||||
struct i2c_client *client = v4l2_get_subdevdata(sd);
|
||||
int ret;
|
||||
|
||||
if (reg->reg > 0xff)
|
||||
return -EINVAL;
|
||||
|
||||
reg->size = 1;
|
||||
ret = i2c_smbus_read_byte_data(client, reg->reg);
|
||||
if (ret < 0)
|
||||
return ret;
|
||||
|
||||
/*
|
||||
* ret = int
|
||||
* reg->val = __u64
|
||||
*/
|
||||
reg->val = (__u64)ret;
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int tw9910_s_register(struct v4l2_subdev *sd,
|
||||
const struct v4l2_dbg_register *reg)
|
||||
{
|
||||
struct i2c_client *client = v4l2_get_subdevdata(sd);
|
||||
|
||||
if (reg->reg > 0xff ||
|
||||
reg->val > 0xff)
|
||||
return -EINVAL;
|
||||
|
||||
return i2c_smbus_write_byte_data(client, reg->reg, reg->val);
|
||||
}
|
||||
#endif
|
||||
|
||||
static int tw9910_s_power(struct v4l2_subdev *sd, int on)
|
||||
{
|
||||
struct i2c_client *client = v4l2_get_subdevdata(sd);
|
||||
struct soc_camera_subdev_desc *ssdd = soc_camera_i2c_to_desc(client);
|
||||
struct tw9910_priv *priv = to_tw9910(client);
|
||||
|
||||
return soc_camera_set_power(&client->dev, ssdd, priv->clk, on);
|
||||
}
|
||||
|
||||
static int tw9910_set_frame(struct v4l2_subdev *sd, u32 *width, u32 *height)
|
||||
{
|
||||
struct i2c_client *client = v4l2_get_subdevdata(sd);
|
||||
struct tw9910_priv *priv = to_tw9910(client);
|
||||
int ret = -EINVAL;
|
||||
u8 val;
|
||||
|
||||
/*
|
||||
* select suitable norm
|
||||
*/
|
||||
priv->scale = tw9910_select_norm(priv->norm, *width, *height);
|
||||
if (!priv->scale)
|
||||
goto tw9910_set_fmt_error;
|
||||
|
||||
/*
|
||||
* reset hardware
|
||||
*/
|
||||
tw9910_reset(client);
|
||||
|
||||
/*
|
||||
* set bus width
|
||||
*/
|
||||
val = 0x00;
|
||||
if (SOCAM_DATAWIDTH_16 == priv->info->buswidth)
|
||||
val = LEN;
|
||||
|
||||
ret = tw9910_mask_set(client, OPFORM, LEN, val);
|
||||
if (ret < 0)
|
||||
goto tw9910_set_fmt_error;
|
||||
|
||||
/*
|
||||
* select MPOUT behavior
|
||||
*/
|
||||
switch (priv->info->mpout) {
|
||||
case TW9910_MPO_VLOSS:
|
||||
val = RTSEL_VLOSS; break;
|
||||
case TW9910_MPO_HLOCK:
|
||||
val = RTSEL_HLOCK; break;
|
||||
case TW9910_MPO_SLOCK:
|
||||
val = RTSEL_SLOCK; break;
|
||||
case TW9910_MPO_VLOCK:
|
||||
val = RTSEL_VLOCK; break;
|
||||
case TW9910_MPO_MONO:
|
||||
val = RTSEL_MONO; break;
|
||||
case TW9910_MPO_DET50:
|
||||
val = RTSEL_DET50; break;
|
||||
case TW9910_MPO_FIELD:
|
||||
val = RTSEL_FIELD; break;
|
||||
case TW9910_MPO_RTCO:
|
||||
val = RTSEL_RTCO; break;
|
||||
default:
|
||||
val = 0;
|
||||
}
|
||||
|
||||
ret = tw9910_mask_set(client, VBICNTL, RTSEL_MASK, val);
|
||||
if (ret < 0)
|
||||
goto tw9910_set_fmt_error;
|
||||
|
||||
/*
|
||||
* set scale
|
||||
*/
|
||||
ret = tw9910_set_scale(client, priv->scale);
|
||||
if (ret < 0)
|
||||
goto tw9910_set_fmt_error;
|
||||
|
||||
/*
|
||||
* set hsync
|
||||
*/
|
||||
ret = tw9910_set_hsync(client);
|
||||
if (ret < 0)
|
||||
goto tw9910_set_fmt_error;
|
||||
|
||||
*width = priv->scale->width;
|
||||
*height = priv->scale->height;
|
||||
|
||||
return ret;
|
||||
|
||||
tw9910_set_fmt_error:
|
||||
|
||||
tw9910_reset(client);
|
||||
priv->scale = NULL;
|
||||
|
||||
return ret;
|
||||
}
|
||||
|
||||
static int tw9910_get_selection(struct v4l2_subdev *sd,
|
||||
struct v4l2_subdev_pad_config *cfg,
|
||||
struct v4l2_subdev_selection *sel)
|
||||
{
|
||||
struct i2c_client *client = v4l2_get_subdevdata(sd);
|
||||
struct tw9910_priv *priv = to_tw9910(client);
|
||||
|
||||
if (sel->which != V4L2_SUBDEV_FORMAT_ACTIVE)
|
||||
return -EINVAL;
|
||||
/* Only CROP, CROP_DEFAULT and CROP_BOUNDS are supported */
|
||||
if (sel->target > V4L2_SEL_TGT_CROP_BOUNDS)
|
||||
return -EINVAL;
|
||||
|
||||
sel->r.left = 0;
|
||||
sel->r.top = 0;
|
||||
if (priv->norm & V4L2_STD_NTSC) {
|
||||
sel->r.width = 640;
|
||||
sel->r.height = 480;
|
||||
} else {
|
||||
sel->r.width = 768;
|
||||
sel->r.height = 576;
|
||||
}
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int tw9910_get_fmt(struct v4l2_subdev *sd,
|
||||
struct v4l2_subdev_pad_config *cfg,
|
||||
struct v4l2_subdev_format *format)
|
||||
{
|
||||
struct v4l2_mbus_framefmt *mf = &format->format;
|
||||
struct i2c_client *client = v4l2_get_subdevdata(sd);
|
||||
struct tw9910_priv *priv = to_tw9910(client);
|
||||
|
||||
if (format->pad)
|
||||
return -EINVAL;
|
||||
|
||||
if (!priv->scale) {
|
||||
priv->scale = tw9910_select_norm(priv->norm, 640, 480);
|
||||
if (!priv->scale)
|
||||
return -EINVAL;
|
||||
}
|
||||
|
||||
mf->width = priv->scale->width;
|
||||
mf->height = priv->scale->height;
|
||||
mf->code = MEDIA_BUS_FMT_UYVY8_2X8;
|
||||
mf->colorspace = V4L2_COLORSPACE_SMPTE170M;
|
||||
mf->field = V4L2_FIELD_INTERLACED_BT;
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int tw9910_s_fmt(struct v4l2_subdev *sd,
|
||||
struct v4l2_mbus_framefmt *mf)
|
||||
{
|
||||
u32 width = mf->width, height = mf->height;
|
||||
int ret;
|
||||
|
||||
WARN_ON(mf->field != V4L2_FIELD_ANY &&
|
||||
mf->field != V4L2_FIELD_INTERLACED_BT);
|
||||
|
||||
/*
|
||||
* check color format
|
||||
*/
|
||||
if (mf->code != MEDIA_BUS_FMT_UYVY8_2X8)
|
||||
return -EINVAL;
|
||||
|
||||
mf->colorspace = V4L2_COLORSPACE_SMPTE170M;
|
||||
|
||||
ret = tw9910_set_frame(sd, &width, &height);
|
||||
if (!ret) {
|
||||
mf->width = width;
|
||||
mf->height = height;
|
||||
}
|
||||
return ret;
|
||||
}
|
||||
|
||||
static int tw9910_set_fmt(struct v4l2_subdev *sd,
|
||||
struct v4l2_subdev_pad_config *cfg,
|
||||
struct v4l2_subdev_format *format)
|
||||
{
|
||||
struct v4l2_mbus_framefmt *mf = &format->format;
|
||||
struct i2c_client *client = v4l2_get_subdevdata(sd);
|
||||
struct tw9910_priv *priv = to_tw9910(client);
|
||||
const struct tw9910_scale_ctrl *scale;
|
||||
|
||||
if (format->pad)
|
||||
return -EINVAL;
|
||||
|
||||
if (V4L2_FIELD_ANY == mf->field) {
|
||||
mf->field = V4L2_FIELD_INTERLACED_BT;
|
||||
} else if (V4L2_FIELD_INTERLACED_BT != mf->field) {
|
||||
dev_err(&client->dev, "Field type %d invalid.\n", mf->field);
|
||||
return -EINVAL;
|
||||
}
|
||||
|
||||
mf->code = MEDIA_BUS_FMT_UYVY8_2X8;
|
||||
mf->colorspace = V4L2_COLORSPACE_SMPTE170M;
|
||||
|
||||
/*
|
||||
* select suitable norm
|
||||
*/
|
||||
scale = tw9910_select_norm(priv->norm, mf->width, mf->height);
|
||||
if (!scale)
|
||||
return -EINVAL;
|
||||
|
||||
mf->width = scale->width;
|
||||
mf->height = scale->height;
|
||||
|
||||
if (format->which == V4L2_SUBDEV_FORMAT_ACTIVE)
|
||||
return tw9910_s_fmt(sd, mf);
|
||||
cfg->try_fmt = *mf;
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int tw9910_video_probe(struct i2c_client *client)
|
||||
{
|
||||
struct tw9910_priv *priv = to_tw9910(client);
|
||||
s32 id;
|
||||
int ret;
|
||||
|
||||
/*
|
||||
* tw9910 only use 8 or 16 bit bus width
|
||||
*/
|
||||
if (SOCAM_DATAWIDTH_16 != priv->info->buswidth &&
|
||||
SOCAM_DATAWIDTH_8 != priv->info->buswidth) {
|
||||
dev_err(&client->dev, "bus width error\n");
|
||||
return -ENODEV;
|
||||
}
|
||||
|
||||
ret = tw9910_s_power(&priv->subdev, 1);
|
||||
if (ret < 0)
|
||||
return ret;
|
||||
|
||||
/*
|
||||
* check and show Product ID
|
||||
* So far only revisions 0 and 1 have been seen
|
||||
*/
|
||||
id = i2c_smbus_read_byte_data(client, ID);
|
||||
priv->revision = GET_REV(id);
|
||||
id = GET_ID(id);
|
||||
|
||||
if (0x0B != id ||
|
||||
0x01 < priv->revision) {
|
||||
dev_err(&client->dev,
|
||||
"Product ID error %x:%x\n",
|
||||
id, priv->revision);
|
||||
ret = -ENODEV;
|
||||
goto done;
|
||||
}
|
||||
|
||||
dev_info(&client->dev,
|
||||
"tw9910 Product ID %0x:%0x\n", id, priv->revision);
|
||||
|
||||
priv->norm = V4L2_STD_NTSC;
|
||||
priv->scale = &tw9910_ntsc_scales[0];
|
||||
|
||||
done:
|
||||
tw9910_s_power(&priv->subdev, 0);
|
||||
return ret;
|
||||
}
|
||||
|
||||
static const struct v4l2_subdev_core_ops tw9910_subdev_core_ops = {
|
||||
#ifdef CONFIG_VIDEO_ADV_DEBUG
|
||||
.g_register = tw9910_g_register,
|
||||
.s_register = tw9910_s_register,
|
||||
#endif
|
||||
.s_power = tw9910_s_power,
|
||||
};
|
||||
|
||||
static int tw9910_enum_mbus_code(struct v4l2_subdev *sd,
|
||||
struct v4l2_subdev_pad_config *cfg,
|
||||
struct v4l2_subdev_mbus_code_enum *code)
|
||||
{
|
||||
if (code->pad || code->index)
|
||||
return -EINVAL;
|
||||
|
||||
code->code = MEDIA_BUS_FMT_UYVY8_2X8;
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int tw9910_g_mbus_config(struct v4l2_subdev *sd,
|
||||
struct v4l2_mbus_config *cfg)
|
||||
{
|
||||
struct i2c_client *client = v4l2_get_subdevdata(sd);
|
||||
struct soc_camera_subdev_desc *ssdd = soc_camera_i2c_to_desc(client);
|
||||
|
||||
cfg->flags = V4L2_MBUS_PCLK_SAMPLE_RISING | V4L2_MBUS_MASTER |
|
||||
V4L2_MBUS_VSYNC_ACTIVE_HIGH | V4L2_MBUS_VSYNC_ACTIVE_LOW |
|
||||
V4L2_MBUS_HSYNC_ACTIVE_HIGH | V4L2_MBUS_HSYNC_ACTIVE_LOW |
|
||||
V4L2_MBUS_DATA_ACTIVE_HIGH;
|
||||
cfg->type = V4L2_MBUS_PARALLEL;
|
||||
cfg->flags = soc_camera_apply_board_flags(ssdd, cfg);
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int tw9910_s_mbus_config(struct v4l2_subdev *sd,
|
||||
const struct v4l2_mbus_config *cfg)
|
||||
{
|
||||
struct i2c_client *client = v4l2_get_subdevdata(sd);
|
||||
struct soc_camera_subdev_desc *ssdd = soc_camera_i2c_to_desc(client);
|
||||
u8 val = VSSL_VVALID | HSSL_DVALID;
|
||||
unsigned long flags = soc_camera_apply_board_flags(ssdd, cfg);
|
||||
|
||||
/*
|
||||
* set OUTCTR1
|
||||
*
|
||||
* We use VVALID and DVALID signals to control VSYNC and HSYNC
|
||||
* outputs, in this mode their polarity is inverted.
|
||||
*/
|
||||
if (flags & V4L2_MBUS_HSYNC_ACTIVE_LOW)
|
||||
val |= HSP_HI;
|
||||
|
||||
if (flags & V4L2_MBUS_VSYNC_ACTIVE_LOW)
|
||||
val |= VSP_HI;
|
||||
|
||||
return i2c_smbus_write_byte_data(client, OUTCTR1, val);
|
||||
}
|
||||
|
||||
static int tw9910_g_tvnorms(struct v4l2_subdev *sd, v4l2_std_id *norm)
|
||||
{
|
||||
*norm = V4L2_STD_NTSC | V4L2_STD_PAL;
|
||||
return 0;
|
||||
}
|
||||
|
||||
static const struct v4l2_subdev_video_ops tw9910_subdev_video_ops = {
|
||||
.s_std = tw9910_s_std,
|
||||
.g_std = tw9910_g_std,
|
||||
.s_stream = tw9910_s_stream,
|
||||
.g_mbus_config = tw9910_g_mbus_config,
|
||||
.s_mbus_config = tw9910_s_mbus_config,
|
||||
.g_tvnorms = tw9910_g_tvnorms,
|
||||
};
|
||||
|
||||
static const struct v4l2_subdev_pad_ops tw9910_subdev_pad_ops = {
|
||||
.enum_mbus_code = tw9910_enum_mbus_code,
|
||||
.get_selection = tw9910_get_selection,
|
||||
.get_fmt = tw9910_get_fmt,
|
||||
.set_fmt = tw9910_set_fmt,
|
||||
};
|
||||
|
||||
static const struct v4l2_subdev_ops tw9910_subdev_ops = {
|
||||
.core = &tw9910_subdev_core_ops,
|
||||
.video = &tw9910_subdev_video_ops,
|
||||
.pad = &tw9910_subdev_pad_ops,
|
||||
};
|
||||
|
||||
/*
|
||||
* i2c_driver function
|
||||
*/
|
||||
|
||||
static int tw9910_probe(struct i2c_client *client,
|
||||
const struct i2c_device_id *did)
|
||||
|
||||
{
|
||||
struct tw9910_priv *priv;
|
||||
struct tw9910_video_info *info;
|
||||
struct i2c_adapter *adapter =
|
||||
to_i2c_adapter(client->dev.parent);
|
||||
struct soc_camera_subdev_desc *ssdd = soc_camera_i2c_to_desc(client);
|
||||
int ret;
|
||||
|
||||
if (!ssdd || !ssdd->drv_priv) {
|
||||
dev_err(&client->dev, "TW9910: missing platform data!\n");
|
||||
return -EINVAL;
|
||||
}
|
||||
|
||||
info = ssdd->drv_priv;
|
||||
|
||||
if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA)) {
|
||||
dev_err(&client->dev,
|
||||
"I2C-Adapter doesn't support I2C_FUNC_SMBUS_BYTE_DATA\n");
|
||||
return -EIO;
|
||||
}
|
||||
|
||||
priv = devm_kzalloc(&client->dev, sizeof(*priv), GFP_KERNEL);
|
||||
if (!priv)
|
||||
return -ENOMEM;
|
||||
|
||||
priv->info = info;
|
||||
|
||||
v4l2_i2c_subdev_init(&priv->subdev, client, &tw9910_subdev_ops);
|
||||
|
||||
priv->clk = v4l2_clk_get(&client->dev, "mclk");
|
||||
if (IS_ERR(priv->clk))
|
||||
return PTR_ERR(priv->clk);
|
||||
|
||||
ret = tw9910_video_probe(client);
|
||||
if (ret < 0)
|
||||
v4l2_clk_put(priv->clk);
|
||||
|
||||
return ret;
|
||||
}
|
||||
|
||||
static int tw9910_remove(struct i2c_client *client)
|
||||
{
|
||||
struct tw9910_priv *priv = to_tw9910(client);
|
||||
v4l2_clk_put(priv->clk);
|
||||
return 0;
|
||||
}
|
||||
|
||||
static const struct i2c_device_id tw9910_id[] = {
|
||||
{ "tw9910", 0 },
|
||||
{ }
|
||||
};
|
||||
MODULE_DEVICE_TABLE(i2c, tw9910_id);
|
||||
|
||||
static struct i2c_driver tw9910_i2c_driver = {
|
||||
.driver = {
|
||||
.name = "tw9910",
|
||||
},
|
||||
.probe = tw9910_probe,
|
||||
.remove = tw9910_remove,
|
||||
.id_table = tw9910_id,
|
||||
};
|
||||
|
||||
module_i2c_driver(tw9910_i2c_driver);
|
||||
|
||||
MODULE_DESCRIPTION("SoC Camera driver for tw9910");
|
||||
MODULE_AUTHOR("Kuninori Morimoto");
|
||||
MODULE_LICENSE("GPL v2");
|
||||
Loading…
Reference in New Issue