ccfc97bdb5
Add driver for SMIA++/SMIA image sensors. The driver exposes the sensor as three subdevs, pixel array, binner and scaler --- in case the device has a scaler. Currently it relies on the board code for external clock handling. There is no fast way out of this dependency before the ISP drivers (omap3isp) among others will be able to export that clock through the clock framework instead. Signed-off-by: Sakari Ailus <sakari.ailus@maxwell.research.nokia.com> Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
264 lines
8 KiB
C
264 lines
8 KiB
C
/*
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* drivers/media/video/smiapp/smiapp-quirk.c
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*
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* Generic driver for SMIA/SMIA++ compliant camera modules
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*
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* Copyright (C) 2011--2012 Nokia Corporation
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* Contact: Sakari Ailus <sakari.ailus@maxwell.research.nokia.com>
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* version 2 as published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* 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., 51 Franklin St, Fifth Floor, Boston, MA
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* 02110-1301 USA
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*
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*/
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#include "smiapp-debug.h"
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#include <linux/delay.h>
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#include "smiapp.h"
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static int smiapp_write_8(struct smiapp_sensor *sensor, u16 reg, u8 val)
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{
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struct i2c_client *client = v4l2_get_subdevdata(&sensor->src->sd);
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return smiapp_write(client, (SMIA_REG_8BIT << 16) | reg, val);
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}
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static int smiapp_write_8s(struct smiapp_sensor *sensor,
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struct smiapp_reg_8 *regs, int len)
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{
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struct i2c_client *client = v4l2_get_subdevdata(&sensor->src->sd);
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int rval;
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for (; len > 0; len--, regs++) {
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rval = smiapp_write_8(sensor, regs->reg, regs->val);
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if (rval < 0) {
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dev_err(&client->dev,
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"error %d writing reg 0x%4.4x, val 0x%2.2x",
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rval, regs->reg, regs->val);
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return rval;
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}
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}
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return 0;
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}
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void smiapp_replace_limit(struct smiapp_sensor *sensor,
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u32 limit, u32 val)
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{
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struct i2c_client *client = v4l2_get_subdevdata(&sensor->src->sd);
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dev_dbg(&client->dev, "quirk: 0x%8.8x \"%s\" = %d, 0x%x\n",
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smiapp_reg_limits[limit].addr,
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smiapp_reg_limits[limit].what, val, val);
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sensor->limits[limit] = val;
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}
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int smiapp_replace_limit_at(struct smiapp_sensor *sensor,
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u32 reg, u32 val)
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{
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struct i2c_client *client = v4l2_get_subdevdata(&sensor->src->sd);
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int i;
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for (i = 0; smiapp_reg_limits[i].addr; i++) {
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if ((smiapp_reg_limits[i].addr & 0xffff) != reg)
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continue;
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smiapp_replace_limit(sensor, i, val);
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return 0;
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}
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dev_dbg(&client->dev, "quirk: bad register 0x%4.4x\n", reg);
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return -EINVAL;
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}
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static int jt8ew9_limits(struct smiapp_sensor *sensor)
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{
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if (sensor->minfo.revision_number_major < 0x03)
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sensor->frame_skip = 1;
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/* Below 24 gain doesn't have effect at all, */
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/* but ~59 is needed for full dynamic range */
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smiapp_replace_limit(sensor, SMIAPP_LIMIT_ANALOGUE_GAIN_CODE_MIN, 59);
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smiapp_replace_limit(
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sensor, SMIAPP_LIMIT_ANALOGUE_GAIN_CODE_MAX, 6000);
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return 0;
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}
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static int jt8ew9_post_poweron(struct smiapp_sensor *sensor)
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{
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struct smiapp_reg_8 regs[] = {
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{ 0x30a3, 0xd8 }, /* Output port control : LVDS ports only */
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{ 0x30ae, 0x00 }, /* 0x0307 pll_multiplier maximum value on PLL input 9.6MHz ( 19.2MHz is divided on pre_pll_div) */
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{ 0x30af, 0xd0 }, /* 0x0307 pll_multiplier maximum value on PLL input 9.6MHz ( 19.2MHz is divided on pre_pll_div) */
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{ 0x322d, 0x04 }, /* Adjusting Processing Image Size to Scaler Toshiba Recommendation Setting */
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{ 0x3255, 0x0f }, /* Horizontal Noise Reduction Control Toshiba Recommendation Setting */
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{ 0x3256, 0x15 }, /* Horizontal Noise Reduction Control Toshiba Recommendation Setting */
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{ 0x3258, 0x70 }, /* Analog Gain Control Toshiba Recommendation Setting */
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{ 0x3259, 0x70 }, /* Analog Gain Control Toshiba Recommendation Setting */
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{ 0x325f, 0x7c }, /* Analog Gain Control Toshiba Recommendation Setting */
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{ 0x3302, 0x06 }, /* Pixel Reference Voltage Control Toshiba Recommendation Setting */
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{ 0x3304, 0x00 }, /* Pixel Reference Voltage Control Toshiba Recommendation Setting */
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{ 0x3307, 0x22 }, /* Pixel Reference Voltage Control Toshiba Recommendation Setting */
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{ 0x3308, 0x8d }, /* Pixel Reference Voltage Control Toshiba Recommendation Setting */
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{ 0x331e, 0x0f }, /* Black Hole Sun Correction Control Toshiba Recommendation Setting */
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{ 0x3320, 0x30 }, /* Black Hole Sun Correction Control Toshiba Recommendation Setting */
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{ 0x3321, 0x11 }, /* Black Hole Sun Correction Control Toshiba Recommendation Setting */
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{ 0x3322, 0x98 }, /* Black Hole Sun Correction Control Toshiba Recommendation Setting */
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{ 0x3323, 0x64 }, /* Black Hole Sun Correction Control Toshiba Recommendation Setting */
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{ 0x3325, 0x83 }, /* Read Out Timing Control Toshiba Recommendation Setting */
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{ 0x3330, 0x18 }, /* Read Out Timing Control Toshiba Recommendation Setting */
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{ 0x333c, 0x01 }, /* Read Out Timing Control Toshiba Recommendation Setting */
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{ 0x3345, 0x2f }, /* Black Hole Sun Correction Control Toshiba Recommendation Setting */
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{ 0x33de, 0x38 }, /* Horizontal Noise Reduction Control Toshiba Recommendation Setting */
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/* Taken from v03. No idea what the rest are. */
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{ 0x32e0, 0x05 },
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{ 0x32e1, 0x05 },
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{ 0x32e2, 0x04 },
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{ 0x32e5, 0x04 },
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{ 0x32e6, 0x04 },
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};
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return smiapp_write_8s(sensor, regs, ARRAY_SIZE(regs));
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}
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const struct smiapp_quirk smiapp_jt8ew9_quirk = {
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.limits = jt8ew9_limits,
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.post_poweron = jt8ew9_post_poweron,
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};
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static int imx125es_post_poweron(struct smiapp_sensor *sensor)
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{
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/* Taken from v02. No idea what the other two are. */
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struct smiapp_reg_8 regs[] = {
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/*
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* 0x3302: clk during frame blanking:
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* 0x00 - HS mode, 0x01 - LP11
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*/
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{ 0x3302, 0x01 },
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{ 0x302d, 0x00 },
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{ 0x3b08, 0x8c },
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};
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return smiapp_write_8s(sensor, regs, ARRAY_SIZE(regs));
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}
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const struct smiapp_quirk smiapp_imx125es_quirk = {
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.post_poweron = imx125es_post_poweron,
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};
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static int jt8ev1_limits(struct smiapp_sensor *sensor)
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{
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smiapp_replace_limit(sensor, SMIAPP_LIMIT_X_ADDR_MAX, 4271);
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smiapp_replace_limit(sensor,
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SMIAPP_LIMIT_MIN_LINE_BLANKING_PCK_BIN, 184);
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return 0;
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}
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static int jt8ev1_post_poweron(struct smiapp_sensor *sensor)
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{
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struct i2c_client *client = v4l2_get_subdevdata(&sensor->src->sd);
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int rval;
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struct smiapp_reg_8 regs[] = {
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{ 0x3031, 0xcd }, /* For digital binning (EQ_MONI) */
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{ 0x30a3, 0xd0 }, /* FLASH STROBE enable */
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{ 0x3237, 0x00 }, /* For control of pulse timing for ADC */
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{ 0x3238, 0x43 },
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{ 0x3301, 0x06 }, /* For analog bias for sensor */
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{ 0x3302, 0x06 },
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{ 0x3304, 0x00 },
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{ 0x3305, 0x88 },
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{ 0x332a, 0x14 },
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{ 0x332c, 0x6b },
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{ 0x3336, 0x01 },
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{ 0x333f, 0x1f },
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{ 0x3355, 0x00 },
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{ 0x3356, 0x20 },
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{ 0x33bf, 0x20 }, /* Adjust the FBC speed */
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{ 0x33c9, 0x20 },
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{ 0x33ce, 0x30 }, /* Adjust the parameter for logic function */
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{ 0x33cf, 0xec }, /* For Black sun */
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{ 0x3328, 0x80 }, /* Ugh. No idea what's this. */
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};
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struct smiapp_reg_8 regs_96[] = {
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{ 0x30ae, 0x00 }, /* For control of ADC clock */
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{ 0x30af, 0xd0 },
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{ 0x30b0, 0x01 },
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};
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rval = smiapp_write_8s(sensor, regs, ARRAY_SIZE(regs));
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if (rval < 0)
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return rval;
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switch (sensor->platform_data->ext_clk) {
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case 9600000:
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return smiapp_write_8s(sensor, regs_96,
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ARRAY_SIZE(regs_96));
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default:
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dev_warn(&client->dev, "no MSRs for %d Hz ext_clk\n",
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sensor->platform_data->ext_clk);
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return 0;
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}
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}
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static int jt8ev1_pre_streamon(struct smiapp_sensor *sensor)
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{
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return smiapp_write_8(sensor, 0x3328, 0x00);
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}
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static int jt8ev1_post_streamoff(struct smiapp_sensor *sensor)
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{
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int rval;
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/* Workaround: allows fast standby to work properly */
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rval = smiapp_write_8(sensor, 0x3205, 0x04);
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if (rval < 0)
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return rval;
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/* Wait for 1 ms + one line => 2 ms is likely enough */
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usleep_range(2000, 2000);
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/* Restore it */
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rval = smiapp_write_8(sensor, 0x3205, 0x00);
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if (rval < 0)
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return rval;
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return smiapp_write_8(sensor, 0x3328, 0x80);
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}
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const struct smiapp_quirk smiapp_jt8ev1_quirk = {
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.limits = jt8ev1_limits,
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.post_poweron = jt8ev1_post_poweron,
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.pre_streamon = jt8ev1_pre_streamon,
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.post_streamoff = jt8ev1_post_streamoff,
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.flags = SMIAPP_QUIRK_FLAG_OP_PIX_CLOCK_PER_LANE,
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};
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static int tcm8500md_limits(struct smiapp_sensor *sensor)
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{
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smiapp_replace_limit(sensor, SMIAPP_LIMIT_MIN_PLL_IP_FREQ_HZ, 2700000);
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return 0;
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}
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const struct smiapp_quirk smiapp_tcm8500md_quirk = {
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.limits = tcm8500md_limits,
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};
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