1f5fbb83fSMauro Carvalho Chehab // SPDX-License-Identifier: GPL-2.0 2ad85094bSMauro Carvalho Chehab /* 3ad85094bSMauro Carvalho Chehab * Support for GalaxyCore GC0310 VGA camera sensor. 4ad85094bSMauro Carvalho Chehab * 5ad85094bSMauro Carvalho Chehab * Copyright (c) 2013 Intel Corporation. All Rights Reserved. 6ad85094bSMauro Carvalho Chehab * 7ad85094bSMauro Carvalho Chehab * This program is free software; you can redistribute it and/or 8ad85094bSMauro Carvalho Chehab * modify it under the terms of the GNU General Public License version 9ad85094bSMauro Carvalho Chehab * 2 as published by the Free Software Foundation. 10ad85094bSMauro Carvalho Chehab * 11ad85094bSMauro Carvalho Chehab * This program is distributed in the hope that it will be useful, 12ad85094bSMauro Carvalho Chehab * but WITHOUT ANY WARRANTY; without even the implied warranty of 13ad85094bSMauro Carvalho Chehab * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 14ad85094bSMauro Carvalho Chehab * GNU General Public License for more details. 15ad85094bSMauro Carvalho Chehab * 16ad85094bSMauro Carvalho Chehab */ 17ad85094bSMauro Carvalho Chehab 18ad85094bSMauro Carvalho Chehab #include <linux/module.h> 19ad85094bSMauro Carvalho Chehab #include <linux/types.h> 20ad85094bSMauro Carvalho Chehab #include <linux/kernel.h> 21ad85094bSMauro Carvalho Chehab #include <linux/mm.h> 22ad85094bSMauro Carvalho Chehab #include <linux/string.h> 23ad85094bSMauro Carvalho Chehab #include <linux/errno.h> 24ad85094bSMauro Carvalho Chehab #include <linux/init.h> 25ad85094bSMauro Carvalho Chehab #include <linux/kmod.h> 26ad85094bSMauro Carvalho Chehab #include <linux/device.h> 27ad85094bSMauro Carvalho Chehab #include <linux/delay.h> 28ad85094bSMauro Carvalho Chehab #include <linux/slab.h> 29ad85094bSMauro Carvalho Chehab #include <linux/i2c.h> 30ad85094bSMauro Carvalho Chehab #include <linux/moduleparam.h> 31ad85094bSMauro Carvalho Chehab #include <media/v4l2-device.h> 32ad85094bSMauro Carvalho Chehab #include <linux/io.h> 33ad85094bSMauro Carvalho Chehab #include "../include/linux/atomisp_gmin_platform.h" 34ad85094bSMauro Carvalho Chehab 35ad85094bSMauro Carvalho Chehab #include "gc0310.h" 36ad85094bSMauro Carvalho Chehab 37ad85094bSMauro Carvalho Chehab /* i2c read/write stuff */ 38ad85094bSMauro Carvalho Chehab static int gc0310_read_reg(struct i2c_client *client, 39ad85094bSMauro Carvalho Chehab u16 data_length, u8 reg, u8 *val) 40ad85094bSMauro Carvalho Chehab { 41ad85094bSMauro Carvalho Chehab int err; 42ad85094bSMauro Carvalho Chehab struct i2c_msg msg[2]; 43ad85094bSMauro Carvalho Chehab unsigned char data[1]; 44ad85094bSMauro Carvalho Chehab 45ad85094bSMauro Carvalho Chehab if (!client->adapter) { 46ad85094bSMauro Carvalho Chehab dev_err(&client->dev, "%s error, no client->adapter\n", 47ad85094bSMauro Carvalho Chehab __func__); 48ad85094bSMauro Carvalho Chehab return -ENODEV; 49ad85094bSMauro Carvalho Chehab } 50ad85094bSMauro Carvalho Chehab 51ad85094bSMauro Carvalho Chehab if (data_length != GC0310_8BIT) { 52ad85094bSMauro Carvalho Chehab dev_err(&client->dev, "%s error, invalid data length\n", 53ad85094bSMauro Carvalho Chehab __func__); 54ad85094bSMauro Carvalho Chehab return -EINVAL; 55ad85094bSMauro Carvalho Chehab } 56ad85094bSMauro Carvalho Chehab 57ad85094bSMauro Carvalho Chehab memset(msg, 0, sizeof(msg)); 58ad85094bSMauro Carvalho Chehab 59ad85094bSMauro Carvalho Chehab msg[0].addr = client->addr; 60ad85094bSMauro Carvalho Chehab msg[0].flags = 0; 61ad85094bSMauro Carvalho Chehab msg[0].len = I2C_MSG_LENGTH; 62ad85094bSMauro Carvalho Chehab msg[0].buf = data; 63ad85094bSMauro Carvalho Chehab 64ad85094bSMauro Carvalho Chehab /* high byte goes out first */ 65ad85094bSMauro Carvalho Chehab data[0] = (u8)(reg & 0xff); 66ad85094bSMauro Carvalho Chehab 67ad85094bSMauro Carvalho Chehab msg[1].addr = client->addr; 68ad85094bSMauro Carvalho Chehab msg[1].len = data_length; 69ad85094bSMauro Carvalho Chehab msg[1].flags = I2C_M_RD; 70ad85094bSMauro Carvalho Chehab msg[1].buf = data; 71ad85094bSMauro Carvalho Chehab 72ad85094bSMauro Carvalho Chehab err = i2c_transfer(client->adapter, msg, 2); 73ad85094bSMauro Carvalho Chehab if (err != 2) { 74ad85094bSMauro Carvalho Chehab if (err >= 0) 75ad85094bSMauro Carvalho Chehab err = -EIO; 76ad85094bSMauro Carvalho Chehab dev_err(&client->dev, 77ad85094bSMauro Carvalho Chehab "read from offset 0x%x error %d", reg, err); 78ad85094bSMauro Carvalho Chehab return err; 79ad85094bSMauro Carvalho Chehab } 80ad85094bSMauro Carvalho Chehab 81ad85094bSMauro Carvalho Chehab *val = 0; 82ad85094bSMauro Carvalho Chehab /* high byte comes first */ 83ad85094bSMauro Carvalho Chehab if (data_length == GC0310_8BIT) 84ad85094bSMauro Carvalho Chehab *val = (u8)data[0]; 85ad85094bSMauro Carvalho Chehab 86ad85094bSMauro Carvalho Chehab return 0; 87ad85094bSMauro Carvalho Chehab } 88ad85094bSMauro Carvalho Chehab 89ad85094bSMauro Carvalho Chehab static int gc0310_i2c_write(struct i2c_client *client, u16 len, u8 *data) 90ad85094bSMauro Carvalho Chehab { 91ad85094bSMauro Carvalho Chehab struct i2c_msg msg; 92ad85094bSMauro Carvalho Chehab const int num_msg = 1; 93ad85094bSMauro Carvalho Chehab int ret; 94ad85094bSMauro Carvalho Chehab 95ad85094bSMauro Carvalho Chehab msg.addr = client->addr; 96ad85094bSMauro Carvalho Chehab msg.flags = 0; 97ad85094bSMauro Carvalho Chehab msg.len = len; 98ad85094bSMauro Carvalho Chehab msg.buf = data; 99ad85094bSMauro Carvalho Chehab ret = i2c_transfer(client->adapter, &msg, 1); 100ad85094bSMauro Carvalho Chehab 101ad85094bSMauro Carvalho Chehab return ret == num_msg ? 0 : -EIO; 102ad85094bSMauro Carvalho Chehab } 103ad85094bSMauro Carvalho Chehab 104ad85094bSMauro Carvalho Chehab static int gc0310_write_reg(struct i2c_client *client, u16 data_length, 105ad85094bSMauro Carvalho Chehab u8 reg, u8 val) 106ad85094bSMauro Carvalho Chehab { 107ad85094bSMauro Carvalho Chehab int ret; 108ad85094bSMauro Carvalho Chehab unsigned char data[2] = {0}; 109ad85094bSMauro Carvalho Chehab u8 *wreg = (u8 *)data; 110ad85094bSMauro Carvalho Chehab const u16 len = data_length + sizeof(u8); /* 8-bit address + data */ 111ad85094bSMauro Carvalho Chehab 112ad85094bSMauro Carvalho Chehab if (data_length != GC0310_8BIT) { 113ad85094bSMauro Carvalho Chehab dev_err(&client->dev, 114ad85094bSMauro Carvalho Chehab "%s error, invalid data_length\n", __func__); 115ad85094bSMauro Carvalho Chehab return -EINVAL; 116ad85094bSMauro Carvalho Chehab } 117ad85094bSMauro Carvalho Chehab 118ad85094bSMauro Carvalho Chehab /* high byte goes out first */ 119ad85094bSMauro Carvalho Chehab *wreg = (u8)(reg & 0xff); 120ad85094bSMauro Carvalho Chehab 121ad85094bSMauro Carvalho Chehab if (data_length == GC0310_8BIT) 122ad85094bSMauro Carvalho Chehab data[1] = (u8)(val); 123ad85094bSMauro Carvalho Chehab 124ad85094bSMauro Carvalho Chehab ret = gc0310_i2c_write(client, len, data); 125ad85094bSMauro Carvalho Chehab if (ret) 126ad85094bSMauro Carvalho Chehab dev_err(&client->dev, 127ad85094bSMauro Carvalho Chehab "write error: wrote 0x%x to offset 0x%x error %d", 128ad85094bSMauro Carvalho Chehab val, reg, ret); 129ad85094bSMauro Carvalho Chehab 130ad85094bSMauro Carvalho Chehab return ret; 131ad85094bSMauro Carvalho Chehab } 132ad85094bSMauro Carvalho Chehab 133ad85094bSMauro Carvalho Chehab /* 134ad85094bSMauro Carvalho Chehab * gc0310_write_reg_array - Initializes a list of GC0310 registers 135ad85094bSMauro Carvalho Chehab * @client: i2c driver client structure 136ad85094bSMauro Carvalho Chehab * @reglist: list of registers to be written 137bfe06aeeSHans de Goede * @count: number of register, value pairs in the list 138ad85094bSMauro Carvalho Chehab */ 139ad85094bSMauro Carvalho Chehab static int gc0310_write_reg_array(struct i2c_client *client, 140bfe06aeeSHans de Goede const struct gc0310_reg *reglist, int count) 141ad85094bSMauro Carvalho Chehab { 142bfe06aeeSHans de Goede int i, err; 143ad85094bSMauro Carvalho Chehab 144bfe06aeeSHans de Goede for (i = 0; i < count; i++) { 145*e1a4b3a7SHans de Goede err = gc0310_write_reg(client, GC0310_8BIT, reglist[i].reg, reglist[i].val); 146ad85094bSMauro Carvalho Chehab if (err) 147ad85094bSMauro Carvalho Chehab return err; 148ad85094bSMauro Carvalho Chehab } 149ad85094bSMauro Carvalho Chehab 150*e1a4b3a7SHans de Goede return 0; 151ad85094bSMauro Carvalho Chehab } 152bdfe0bebSMauro Carvalho Chehab 153ad85094bSMauro Carvalho Chehab static int gc0310_set_gain(struct v4l2_subdev *sd, int gain) 154ad85094bSMauro Carvalho Chehab 155ad85094bSMauro Carvalho Chehab { 156ad85094bSMauro Carvalho Chehab struct i2c_client *client = v4l2_get_subdevdata(sd); 157ad85094bSMauro Carvalho Chehab int ret; 158ad85094bSMauro Carvalho Chehab u8 again, dgain; 159ad85094bSMauro Carvalho Chehab 160ad85094bSMauro Carvalho Chehab if (gain < 0x20) 161ad85094bSMauro Carvalho Chehab gain = 0x20; 162ad85094bSMauro Carvalho Chehab if (gain > 0x80) 163ad85094bSMauro Carvalho Chehab gain = 0x80; 164ad85094bSMauro Carvalho Chehab 165ad85094bSMauro Carvalho Chehab if (gain >= 0x20 && gain < 0x40) { 166ad85094bSMauro Carvalho Chehab again = 0x0; /* sqrt(2) */ 167ad85094bSMauro Carvalho Chehab dgain = gain; 168ad85094bSMauro Carvalho Chehab } else { 169ad85094bSMauro Carvalho Chehab again = 0x2; /* 2 * sqrt(2) */ 170ad85094bSMauro Carvalho Chehab dgain = gain / 2; 171ad85094bSMauro Carvalho Chehab } 172ad85094bSMauro Carvalho Chehab 1732dfc978aSDeepak R Varma dev_dbg(&client->dev, "gain=0x%x again=0x%x dgain=0x%x\n", gain, again, dgain); 174ad85094bSMauro Carvalho Chehab 175ad85094bSMauro Carvalho Chehab /* set analog gain */ 176ad85094bSMauro Carvalho Chehab ret = gc0310_write_reg(client, GC0310_8BIT, 177ad85094bSMauro Carvalho Chehab GC0310_AGC_ADJ, again); 178ad85094bSMauro Carvalho Chehab if (ret) 179ad85094bSMauro Carvalho Chehab return ret; 180ad85094bSMauro Carvalho Chehab 181ad85094bSMauro Carvalho Chehab /* set digital gain */ 182ad85094bSMauro Carvalho Chehab ret = gc0310_write_reg(client, GC0310_8BIT, 183ad85094bSMauro Carvalho Chehab GC0310_DGC_ADJ, dgain); 184ad85094bSMauro Carvalho Chehab if (ret) 185ad85094bSMauro Carvalho Chehab return ret; 186ad85094bSMauro Carvalho Chehab 187ad85094bSMauro Carvalho Chehab return 0; 188ad85094bSMauro Carvalho Chehab } 189ad85094bSMauro Carvalho Chehab 190ad85094bSMauro Carvalho Chehab static int __gc0310_set_exposure(struct v4l2_subdev *sd, int coarse_itg, 191ad85094bSMauro Carvalho Chehab int gain, int digitgain) 192ad85094bSMauro Carvalho Chehab 193ad85094bSMauro Carvalho Chehab { 194ad85094bSMauro Carvalho Chehab struct i2c_client *client = v4l2_get_subdevdata(sd); 195ad85094bSMauro Carvalho Chehab int ret; 196ad85094bSMauro Carvalho Chehab 1972dfc978aSDeepak R Varma dev_dbg(&client->dev, "coarse_itg=%d gain=%d digitgain=%d\n", coarse_itg, gain, digitgain); 198ad85094bSMauro Carvalho Chehab 199ad85094bSMauro Carvalho Chehab /* set exposure */ 200ad85094bSMauro Carvalho Chehab ret = gc0310_write_reg(client, GC0310_8BIT, 201ad85094bSMauro Carvalho Chehab GC0310_AEC_PK_EXPO_L, 202ad85094bSMauro Carvalho Chehab coarse_itg & 0xff); 203ad85094bSMauro Carvalho Chehab if (ret) 204ad85094bSMauro Carvalho Chehab return ret; 205ad85094bSMauro Carvalho Chehab 206ad85094bSMauro Carvalho Chehab ret = gc0310_write_reg(client, GC0310_8BIT, 207ad85094bSMauro Carvalho Chehab GC0310_AEC_PK_EXPO_H, 208ad85094bSMauro Carvalho Chehab (coarse_itg >> 8) & 0x0f); 209ad85094bSMauro Carvalho Chehab if (ret) 210ad85094bSMauro Carvalho Chehab return ret; 211ad85094bSMauro Carvalho Chehab 212ad85094bSMauro Carvalho Chehab ret = gc0310_set_gain(sd, gain); 213ad85094bSMauro Carvalho Chehab if (ret) 214ad85094bSMauro Carvalho Chehab return ret; 215ad85094bSMauro Carvalho Chehab 216ad85094bSMauro Carvalho Chehab return ret; 217ad85094bSMauro Carvalho Chehab } 218ad85094bSMauro Carvalho Chehab 219ad85094bSMauro Carvalho Chehab static int gc0310_set_exposure(struct v4l2_subdev *sd, int exposure, 220ad85094bSMauro Carvalho Chehab int gain, int digitgain) 221ad85094bSMauro Carvalho Chehab { 222ad85094bSMauro Carvalho Chehab struct gc0310_device *dev = to_gc0310_sensor(sd); 223ad85094bSMauro Carvalho Chehab int ret; 224ad85094bSMauro Carvalho Chehab 225ad85094bSMauro Carvalho Chehab mutex_lock(&dev->input_lock); 226ad85094bSMauro Carvalho Chehab ret = __gc0310_set_exposure(sd, exposure, gain, digitgain); 227ad85094bSMauro Carvalho Chehab mutex_unlock(&dev->input_lock); 228ad85094bSMauro Carvalho Chehab 229ad85094bSMauro Carvalho Chehab return ret; 230ad85094bSMauro Carvalho Chehab } 231ad85094bSMauro Carvalho Chehab 232ad85094bSMauro Carvalho Chehab static long gc0310_s_exposure(struct v4l2_subdev *sd, 233ad85094bSMauro Carvalho Chehab struct atomisp_exposure *exposure) 234ad85094bSMauro Carvalho Chehab { 235ad85094bSMauro Carvalho Chehab int exp = exposure->integration_time[0]; 236ad85094bSMauro Carvalho Chehab int gain = exposure->gain[0]; 237ad85094bSMauro Carvalho Chehab int digitgain = exposure->gain[1]; 238ad85094bSMauro Carvalho Chehab 239ad85094bSMauro Carvalho Chehab /* we should not accept the invalid value below. */ 240ad85094bSMauro Carvalho Chehab if (gain == 0) { 241ad85094bSMauro Carvalho Chehab struct i2c_client *client = v4l2_get_subdevdata(sd); 242bdfe0bebSMauro Carvalho Chehab 243ad85094bSMauro Carvalho Chehab v4l2_err(client, "%s: invalid value\n", __func__); 244ad85094bSMauro Carvalho Chehab return -EINVAL; 245ad85094bSMauro Carvalho Chehab } 246ad85094bSMauro Carvalho Chehab 247ad85094bSMauro Carvalho Chehab return gc0310_set_exposure(sd, exp, gain, digitgain); 248ad85094bSMauro Carvalho Chehab } 249ad85094bSMauro Carvalho Chehab 250ad85094bSMauro Carvalho Chehab /* TO DO */ 251ad85094bSMauro Carvalho Chehab static int gc0310_v_flip(struct v4l2_subdev *sd, s32 value) 252ad85094bSMauro Carvalho Chehab { 253ad85094bSMauro Carvalho Chehab return 0; 254ad85094bSMauro Carvalho Chehab } 255ad85094bSMauro Carvalho Chehab 256ad85094bSMauro Carvalho Chehab /* TO DO */ 257ad85094bSMauro Carvalho Chehab static int gc0310_h_flip(struct v4l2_subdev *sd, s32 value) 258ad85094bSMauro Carvalho Chehab { 259ad85094bSMauro Carvalho Chehab return 0; 260ad85094bSMauro Carvalho Chehab } 261ad85094bSMauro Carvalho Chehab 262ad85094bSMauro Carvalho Chehab static long gc0310_ioctl(struct v4l2_subdev *sd, unsigned int cmd, void *arg) 263ad85094bSMauro Carvalho Chehab { 264ad85094bSMauro Carvalho Chehab switch (cmd) { 265ad85094bSMauro Carvalho Chehab case ATOMISP_IOC_S_EXPOSURE: 266ad85094bSMauro Carvalho Chehab return gc0310_s_exposure(sd, arg); 267ad85094bSMauro Carvalho Chehab default: 268ad85094bSMauro Carvalho Chehab return -EINVAL; 269ad85094bSMauro Carvalho Chehab } 270ad85094bSMauro Carvalho Chehab return 0; 271ad85094bSMauro Carvalho Chehab } 272ad85094bSMauro Carvalho Chehab 273ad85094bSMauro Carvalho Chehab /* This returns the exposure time being used. This should only be used 274ad85094bSMauro Carvalho Chehab * for filling in EXIF data, not for actual image processing. 275ad85094bSMauro Carvalho Chehab */ 276ad85094bSMauro Carvalho Chehab static int gc0310_q_exposure(struct v4l2_subdev *sd, s32 *value) 277ad85094bSMauro Carvalho Chehab { 278ad85094bSMauro Carvalho Chehab struct i2c_client *client = v4l2_get_subdevdata(sd); 279ad85094bSMauro Carvalho Chehab u8 reg_v; 280ad85094bSMauro Carvalho Chehab int ret; 281ad85094bSMauro Carvalho Chehab 282ad85094bSMauro Carvalho Chehab /* get exposure */ 283ad85094bSMauro Carvalho Chehab ret = gc0310_read_reg(client, GC0310_8BIT, 284ad85094bSMauro Carvalho Chehab GC0310_AEC_PK_EXPO_L, 285ad85094bSMauro Carvalho Chehab ®_v); 286ad85094bSMauro Carvalho Chehab if (ret) 287ad85094bSMauro Carvalho Chehab goto err; 288ad85094bSMauro Carvalho Chehab 289ad85094bSMauro Carvalho Chehab *value = reg_v; 290ad85094bSMauro Carvalho Chehab ret = gc0310_read_reg(client, GC0310_8BIT, 291ad85094bSMauro Carvalho Chehab GC0310_AEC_PK_EXPO_H, 292ad85094bSMauro Carvalho Chehab ®_v); 293ad85094bSMauro Carvalho Chehab if (ret) 294ad85094bSMauro Carvalho Chehab goto err; 295ad85094bSMauro Carvalho Chehab 296ad85094bSMauro Carvalho Chehab *value = *value + (reg_v << 8); 297ad85094bSMauro Carvalho Chehab err: 298ad85094bSMauro Carvalho Chehab return ret; 299ad85094bSMauro Carvalho Chehab } 300ad85094bSMauro Carvalho Chehab 301ad85094bSMauro Carvalho Chehab static int gc0310_s_ctrl(struct v4l2_ctrl *ctrl) 302ad85094bSMauro Carvalho Chehab { 303ad85094bSMauro Carvalho Chehab struct gc0310_device *dev = 304ad85094bSMauro Carvalho Chehab container_of(ctrl->handler, struct gc0310_device, ctrl_handler); 305ad85094bSMauro Carvalho Chehab struct i2c_client *client = v4l2_get_subdevdata(&dev->sd); 306ad85094bSMauro Carvalho Chehab int ret = 0; 307ad85094bSMauro Carvalho Chehab 308ad85094bSMauro Carvalho Chehab switch (ctrl->id) { 309ad85094bSMauro Carvalho Chehab case V4L2_CID_VFLIP: 310ad85094bSMauro Carvalho Chehab dev_dbg(&client->dev, "%s: CID_VFLIP:%d.\n", 311ad85094bSMauro Carvalho Chehab __func__, ctrl->val); 312ad85094bSMauro Carvalho Chehab ret = gc0310_v_flip(&dev->sd, ctrl->val); 313ad85094bSMauro Carvalho Chehab break; 314ad85094bSMauro Carvalho Chehab case V4L2_CID_HFLIP: 315ad85094bSMauro Carvalho Chehab dev_dbg(&client->dev, "%s: CID_HFLIP:%d.\n", 316ad85094bSMauro Carvalho Chehab __func__, ctrl->val); 317ad85094bSMauro Carvalho Chehab ret = gc0310_h_flip(&dev->sd, ctrl->val); 318ad85094bSMauro Carvalho Chehab break; 319ad85094bSMauro Carvalho Chehab default: 320ad85094bSMauro Carvalho Chehab ret = -EINVAL; 321ad85094bSMauro Carvalho Chehab } 322ad85094bSMauro Carvalho Chehab return ret; 323ad85094bSMauro Carvalho Chehab } 324ad85094bSMauro Carvalho Chehab 325ad85094bSMauro Carvalho Chehab static int gc0310_g_volatile_ctrl(struct v4l2_ctrl *ctrl) 326ad85094bSMauro Carvalho Chehab { 327ad85094bSMauro Carvalho Chehab struct gc0310_device *dev = 328ad85094bSMauro Carvalho Chehab container_of(ctrl->handler, struct gc0310_device, ctrl_handler); 329ad85094bSMauro Carvalho Chehab int ret = 0; 330ad85094bSMauro Carvalho Chehab 331ad85094bSMauro Carvalho Chehab switch (ctrl->id) { 332ad85094bSMauro Carvalho Chehab case V4L2_CID_EXPOSURE_ABSOLUTE: 333ad85094bSMauro Carvalho Chehab ret = gc0310_q_exposure(&dev->sd, &ctrl->val); 334ad85094bSMauro Carvalho Chehab break; 335ad85094bSMauro Carvalho Chehab default: 336ad85094bSMauro Carvalho Chehab ret = -EINVAL; 337ad85094bSMauro Carvalho Chehab } 338ad85094bSMauro Carvalho Chehab 339ad85094bSMauro Carvalho Chehab return ret; 340ad85094bSMauro Carvalho Chehab } 341ad85094bSMauro Carvalho Chehab 342ad85094bSMauro Carvalho Chehab static const struct v4l2_ctrl_ops ctrl_ops = { 343ad85094bSMauro Carvalho Chehab .s_ctrl = gc0310_s_ctrl, 344ad85094bSMauro Carvalho Chehab .g_volatile_ctrl = gc0310_g_volatile_ctrl 345ad85094bSMauro Carvalho Chehab }; 346ad85094bSMauro Carvalho Chehab 347ad85094bSMauro Carvalho Chehab static const struct v4l2_ctrl_config gc0310_controls[] = { 348ad85094bSMauro Carvalho Chehab { 349ad85094bSMauro Carvalho Chehab .ops = &ctrl_ops, 350ad85094bSMauro Carvalho Chehab .id = V4L2_CID_EXPOSURE_ABSOLUTE, 351ad85094bSMauro Carvalho Chehab .type = V4L2_CTRL_TYPE_INTEGER, 352ad85094bSMauro Carvalho Chehab .name = "exposure", 353ad85094bSMauro Carvalho Chehab .min = 0x0, 354ad85094bSMauro Carvalho Chehab .max = 0xffff, 355ad85094bSMauro Carvalho Chehab .step = 0x01, 356ad85094bSMauro Carvalho Chehab .def = 0x00, 357ad85094bSMauro Carvalho Chehab .flags = 0, 358ad85094bSMauro Carvalho Chehab }, 359ad85094bSMauro Carvalho Chehab { 360ad85094bSMauro Carvalho Chehab .ops = &ctrl_ops, 361ad85094bSMauro Carvalho Chehab .id = V4L2_CID_VFLIP, 362ad85094bSMauro Carvalho Chehab .type = V4L2_CTRL_TYPE_BOOLEAN, 363ad85094bSMauro Carvalho Chehab .name = "Flip", 364ad85094bSMauro Carvalho Chehab .min = 0, 365ad85094bSMauro Carvalho Chehab .max = 1, 366ad85094bSMauro Carvalho Chehab .step = 1, 367ad85094bSMauro Carvalho Chehab .def = 0, 368ad85094bSMauro Carvalho Chehab }, 369ad85094bSMauro Carvalho Chehab { 370ad85094bSMauro Carvalho Chehab .ops = &ctrl_ops, 371ad85094bSMauro Carvalho Chehab .id = V4L2_CID_HFLIP, 372ad85094bSMauro Carvalho Chehab .type = V4L2_CTRL_TYPE_BOOLEAN, 373ad85094bSMauro Carvalho Chehab .name = "Mirror", 374ad85094bSMauro Carvalho Chehab .min = 0, 375ad85094bSMauro Carvalho Chehab .max = 1, 376ad85094bSMauro Carvalho Chehab .step = 1, 377ad85094bSMauro Carvalho Chehab .def = 0, 378ad85094bSMauro Carvalho Chehab }, 379ad85094bSMauro Carvalho Chehab }; 380ad85094bSMauro Carvalho Chehab 381ad85094bSMauro Carvalho Chehab static int gc0310_init(struct v4l2_subdev *sd) 382ad85094bSMauro Carvalho Chehab { 383ad85094bSMauro Carvalho Chehab int ret; 384ad85094bSMauro Carvalho Chehab struct i2c_client *client = v4l2_get_subdevdata(sd); 385ad85094bSMauro Carvalho Chehab struct gc0310_device *dev = to_gc0310_sensor(sd); 386ad85094bSMauro Carvalho Chehab 387ad85094bSMauro Carvalho Chehab mutex_lock(&dev->input_lock); 388ad85094bSMauro Carvalho Chehab 3894636a85cSMauro Carvalho Chehab /* set initial registers */ 390bfe06aeeSHans de Goede ret = gc0310_write_reg_array(client, gc0310_reset_register, 391bfe06aeeSHans de Goede ARRAY_SIZE(gc0310_reset_register)); 392ad85094bSMauro Carvalho Chehab 393ad85094bSMauro Carvalho Chehab /* restore settings */ 394ad85094bSMauro Carvalho Chehab gc0310_res = gc0310_res_preview; 395ad85094bSMauro Carvalho Chehab N_RES = N_RES_PREVIEW; 396ad85094bSMauro Carvalho Chehab 397ad85094bSMauro Carvalho Chehab mutex_unlock(&dev->input_lock); 398ad85094bSMauro Carvalho Chehab 399ad85094bSMauro Carvalho Chehab return ret; 400ad85094bSMauro Carvalho Chehab } 401ad85094bSMauro Carvalho Chehab 402ad85094bSMauro Carvalho Chehab static int power_ctrl(struct v4l2_subdev *sd, bool flag) 403ad85094bSMauro Carvalho Chehab { 404ad85094bSMauro Carvalho Chehab int ret = 0; 405ad85094bSMauro Carvalho Chehab struct gc0310_device *dev = to_gc0310_sensor(sd); 406bdfe0bebSMauro Carvalho Chehab 407ad85094bSMauro Carvalho Chehab if (!dev || !dev->platform_data) 408ad85094bSMauro Carvalho Chehab return -ENODEV; 409ad85094bSMauro Carvalho Chehab 410ad85094bSMauro Carvalho Chehab if (flag) { 411ad85094bSMauro Carvalho Chehab /* The upstream module driver (written to Crystal 412ad85094bSMauro Carvalho Chehab * Cove) had this logic to pulse the rails low first. 413ad85094bSMauro Carvalho Chehab * This appears to break things on the MRD7 with the 414ad85094bSMauro Carvalho Chehab * X-Powers PMIC... 415ad85094bSMauro Carvalho Chehab * 416ad85094bSMauro Carvalho Chehab * ret = dev->platform_data->v1p8_ctrl(sd, 0); 417ad85094bSMauro Carvalho Chehab * ret |= dev->platform_data->v2p8_ctrl(sd, 0); 418ad85094bSMauro Carvalho Chehab * mdelay(50); 419ad85094bSMauro Carvalho Chehab */ 420ad85094bSMauro Carvalho Chehab ret |= dev->platform_data->v1p8_ctrl(sd, 1); 421ad85094bSMauro Carvalho Chehab ret |= dev->platform_data->v2p8_ctrl(sd, 1); 422ad85094bSMauro Carvalho Chehab usleep_range(10000, 15000); 423ad85094bSMauro Carvalho Chehab } 424ad85094bSMauro Carvalho Chehab 425ad85094bSMauro Carvalho Chehab if (!flag || ret) { 426ad85094bSMauro Carvalho Chehab ret |= dev->platform_data->v1p8_ctrl(sd, 0); 427ad85094bSMauro Carvalho Chehab ret |= dev->platform_data->v2p8_ctrl(sd, 0); 428ad85094bSMauro Carvalho Chehab } 429ad85094bSMauro Carvalho Chehab return ret; 430ad85094bSMauro Carvalho Chehab } 431ad85094bSMauro Carvalho Chehab 432ad85094bSMauro Carvalho Chehab static int gpio_ctrl(struct v4l2_subdev *sd, bool flag) 433ad85094bSMauro Carvalho Chehab { 434ad85094bSMauro Carvalho Chehab int ret; 435ad85094bSMauro Carvalho Chehab struct gc0310_device *dev = to_gc0310_sensor(sd); 436ad85094bSMauro Carvalho Chehab 437ad85094bSMauro Carvalho Chehab if (!dev || !dev->platform_data) 438ad85094bSMauro Carvalho Chehab return -ENODEV; 439ad85094bSMauro Carvalho Chehab 440ad85094bSMauro Carvalho Chehab /* GPIO0 == "reset" (active low), GPIO1 == "power down" */ 441ad85094bSMauro Carvalho Chehab if (flag) { 442ad85094bSMauro Carvalho Chehab /* Pulse reset, then release power down */ 443ad85094bSMauro Carvalho Chehab ret = dev->platform_data->gpio0_ctrl(sd, 0); 444ad85094bSMauro Carvalho Chehab usleep_range(5000, 10000); 445ad85094bSMauro Carvalho Chehab ret |= dev->platform_data->gpio0_ctrl(sd, 1); 446ad85094bSMauro Carvalho Chehab usleep_range(10000, 15000); 447ad85094bSMauro Carvalho Chehab ret |= dev->platform_data->gpio1_ctrl(sd, 0); 448ad85094bSMauro Carvalho Chehab usleep_range(10000, 15000); 449ad85094bSMauro Carvalho Chehab } else { 450ad85094bSMauro Carvalho Chehab ret = dev->platform_data->gpio1_ctrl(sd, 1); 451ad85094bSMauro Carvalho Chehab ret |= dev->platform_data->gpio0_ctrl(sd, 0); 452ad85094bSMauro Carvalho Chehab } 453ad85094bSMauro Carvalho Chehab return ret; 454ad85094bSMauro Carvalho Chehab } 455ad85094bSMauro Carvalho Chehab 456ad85094bSMauro Carvalho Chehab static int power_up(struct v4l2_subdev *sd) 457ad85094bSMauro Carvalho Chehab { 458ad85094bSMauro Carvalho Chehab struct gc0310_device *dev = to_gc0310_sensor(sd); 459ad85094bSMauro Carvalho Chehab struct i2c_client *client = v4l2_get_subdevdata(sd); 460ad85094bSMauro Carvalho Chehab int ret; 461ad85094bSMauro Carvalho Chehab 462ad85094bSMauro Carvalho Chehab if (!dev->platform_data) { 463ad85094bSMauro Carvalho Chehab dev_err(&client->dev, 464ad85094bSMauro Carvalho Chehab "no camera_sensor_platform_data"); 465ad85094bSMauro Carvalho Chehab return -ENODEV; 466ad85094bSMauro Carvalho Chehab } 467ad85094bSMauro Carvalho Chehab 468c5fafbadSHans de Goede if (dev->power_on) 469c5fafbadSHans de Goede return 0; /* Already on */ 470c5fafbadSHans de Goede 471ad85094bSMauro Carvalho Chehab /* power control */ 472ad85094bSMauro Carvalho Chehab ret = power_ctrl(sd, 1); 473ad85094bSMauro Carvalho Chehab if (ret) 474ad85094bSMauro Carvalho Chehab goto fail_power; 475ad85094bSMauro Carvalho Chehab 476ad85094bSMauro Carvalho Chehab /* flis clock control */ 477ad85094bSMauro Carvalho Chehab ret = dev->platform_data->flisclk_ctrl(sd, 1); 478ad85094bSMauro Carvalho Chehab if (ret) 479ad85094bSMauro Carvalho Chehab goto fail_clk; 480ad85094bSMauro Carvalho Chehab 481ad85094bSMauro Carvalho Chehab /* gpio ctrl */ 482ad85094bSMauro Carvalho Chehab ret = gpio_ctrl(sd, 1); 483ad85094bSMauro Carvalho Chehab if (ret) { 484ad85094bSMauro Carvalho Chehab ret = gpio_ctrl(sd, 1); 485ad85094bSMauro Carvalho Chehab if (ret) 486ad85094bSMauro Carvalho Chehab goto fail_gpio; 487ad85094bSMauro Carvalho Chehab } 488ad85094bSMauro Carvalho Chehab 489ad85094bSMauro Carvalho Chehab msleep(100); 490ad85094bSMauro Carvalho Chehab 491c5fafbadSHans de Goede dev->power_on = true; 492ad85094bSMauro Carvalho Chehab return 0; 493ad85094bSMauro Carvalho Chehab 494ad85094bSMauro Carvalho Chehab fail_gpio: 495ad85094bSMauro Carvalho Chehab dev->platform_data->flisclk_ctrl(sd, 0); 496ad85094bSMauro Carvalho Chehab fail_clk: 497ad85094bSMauro Carvalho Chehab power_ctrl(sd, 0); 498ad85094bSMauro Carvalho Chehab fail_power: 499ad85094bSMauro Carvalho Chehab dev_err(&client->dev, "sensor power-up failed\n"); 500ad85094bSMauro Carvalho Chehab 501ad85094bSMauro Carvalho Chehab return ret; 502ad85094bSMauro Carvalho Chehab } 503ad85094bSMauro Carvalho Chehab 504ad85094bSMauro Carvalho Chehab static int power_down(struct v4l2_subdev *sd) 505ad85094bSMauro Carvalho Chehab { 506ad85094bSMauro Carvalho Chehab struct gc0310_device *dev = to_gc0310_sensor(sd); 507ad85094bSMauro Carvalho Chehab struct i2c_client *client = v4l2_get_subdevdata(sd); 508ad85094bSMauro Carvalho Chehab int ret = 0; 509ad85094bSMauro Carvalho Chehab 510ad85094bSMauro Carvalho Chehab if (!dev->platform_data) { 511ad85094bSMauro Carvalho Chehab dev_err(&client->dev, 512ad85094bSMauro Carvalho Chehab "no camera_sensor_platform_data"); 513ad85094bSMauro Carvalho Chehab return -ENODEV; 514ad85094bSMauro Carvalho Chehab } 515ad85094bSMauro Carvalho Chehab 516c5fafbadSHans de Goede if (!dev->power_on) 517c5fafbadSHans de Goede return 0; /* Already off */ 518c5fafbadSHans de Goede 519ad85094bSMauro Carvalho Chehab /* gpio ctrl */ 520ad85094bSMauro Carvalho Chehab ret = gpio_ctrl(sd, 0); 521ad85094bSMauro Carvalho Chehab if (ret) { 522ad85094bSMauro Carvalho Chehab ret = gpio_ctrl(sd, 0); 523ad85094bSMauro Carvalho Chehab if (ret) 524ad85094bSMauro Carvalho Chehab dev_err(&client->dev, "gpio failed 2\n"); 525ad85094bSMauro Carvalho Chehab } 526ad85094bSMauro Carvalho Chehab 527ad85094bSMauro Carvalho Chehab ret = dev->platform_data->flisclk_ctrl(sd, 0); 528ad85094bSMauro Carvalho Chehab if (ret) 529ad85094bSMauro Carvalho Chehab dev_err(&client->dev, "flisclk failed\n"); 530ad85094bSMauro Carvalho Chehab 531ad85094bSMauro Carvalho Chehab /* power control */ 532ad85094bSMauro Carvalho Chehab ret = power_ctrl(sd, 0); 533ad85094bSMauro Carvalho Chehab if (ret) 534ad85094bSMauro Carvalho Chehab dev_err(&client->dev, "vprog failed.\n"); 535ad85094bSMauro Carvalho Chehab 536c5fafbadSHans de Goede dev->power_on = false; 537ad85094bSMauro Carvalho Chehab return ret; 538ad85094bSMauro Carvalho Chehab } 539ad85094bSMauro Carvalho Chehab 540ad85094bSMauro Carvalho Chehab static int gc0310_s_power(struct v4l2_subdev *sd, int on) 541ad85094bSMauro Carvalho Chehab { 542ad85094bSMauro Carvalho Chehab int ret; 543bdfe0bebSMauro Carvalho Chehab 544ad85094bSMauro Carvalho Chehab if (on == 0) 545ad85094bSMauro Carvalho Chehab return power_down(sd); 5464658e1dbSLeonid Kushnir 547dfe59c78SLeonid Kushnir ret = power_up(sd); 548dfe59c78SLeonid Kushnir if (ret) 549ad85094bSMauro Carvalho Chehab return ret; 550dfe59c78SLeonid Kushnir 551dfe59c78SLeonid Kushnir return gc0310_init(sd); 552ad85094bSMauro Carvalho Chehab } 553ad85094bSMauro Carvalho Chehab 554ad85094bSMauro Carvalho Chehab /* TODO: remove it. */ 555ad85094bSMauro Carvalho Chehab static int startup(struct v4l2_subdev *sd) 556ad85094bSMauro Carvalho Chehab { 557ad85094bSMauro Carvalho Chehab struct gc0310_device *dev = to_gc0310_sensor(sd); 558ad85094bSMauro Carvalho Chehab struct i2c_client *client = v4l2_get_subdevdata(sd); 559ad85094bSMauro Carvalho Chehab int ret = 0; 560ad85094bSMauro Carvalho Chehab 561bfe06aeeSHans de Goede ret = gc0310_write_reg_array(client, dev->res->regs, dev->res->reg_count); 562ad85094bSMauro Carvalho Chehab if (ret) { 563ad85094bSMauro Carvalho Chehab dev_err(&client->dev, "gc0310 write register err.\n"); 564ad85094bSMauro Carvalho Chehab return ret; 565ad85094bSMauro Carvalho Chehab } 566ad85094bSMauro Carvalho Chehab 567ad85094bSMauro Carvalho Chehab return ret; 568ad85094bSMauro Carvalho Chehab } 569ad85094bSMauro Carvalho Chehab 570ad85094bSMauro Carvalho Chehab static int gc0310_set_fmt(struct v4l2_subdev *sd, 5710d346d2aSTomi Valkeinen struct v4l2_subdev_state *sd_state, 572ad85094bSMauro Carvalho Chehab struct v4l2_subdev_format *format) 573ad85094bSMauro Carvalho Chehab { 574ad85094bSMauro Carvalho Chehab struct v4l2_mbus_framefmt *fmt = &format->format; 575ad85094bSMauro Carvalho Chehab struct gc0310_device *dev = to_gc0310_sensor(sd); 576ad85094bSMauro Carvalho Chehab struct i2c_client *client = v4l2_get_subdevdata(sd); 577ad85094bSMauro Carvalho Chehab struct camera_mipi_info *gc0310_info = NULL; 578e3b14bf8SMauro Carvalho Chehab struct gc0310_resolution *res; 579ad85094bSMauro Carvalho Chehab int ret = 0; 580bdfe0bebSMauro Carvalho Chehab 581ad85094bSMauro Carvalho Chehab if (format->pad) 582ad85094bSMauro Carvalho Chehab return -EINVAL; 583ad85094bSMauro Carvalho Chehab 584ad85094bSMauro Carvalho Chehab if (!fmt) 585ad85094bSMauro Carvalho Chehab return -EINVAL; 586ad85094bSMauro Carvalho Chehab 587ad85094bSMauro Carvalho Chehab gc0310_info = v4l2_get_subdev_hostdata(sd); 588ad85094bSMauro Carvalho Chehab if (!gc0310_info) 589ad85094bSMauro Carvalho Chehab return -EINVAL; 590ad85094bSMauro Carvalho Chehab 591ad85094bSMauro Carvalho Chehab mutex_lock(&dev->input_lock); 592ad85094bSMauro Carvalho Chehab 593e3b14bf8SMauro Carvalho Chehab res = v4l2_find_nearest_size(gc0310_res_preview, 594e3b14bf8SMauro Carvalho Chehab ARRAY_SIZE(gc0310_res_preview), width, 595e3b14bf8SMauro Carvalho Chehab height, fmt->width, fmt->height); 596e3b14bf8SMauro Carvalho Chehab if (!res) 597e3b14bf8SMauro Carvalho Chehab res = &gc0310_res_preview[N_RES - 1]; 598e3b14bf8SMauro Carvalho Chehab 599e3b14bf8SMauro Carvalho Chehab fmt->width = res->width; 600e3b14bf8SMauro Carvalho Chehab fmt->height = res->height; 601e3b14bf8SMauro Carvalho Chehab dev->res = res; 602e3b14bf8SMauro Carvalho Chehab 603ad85094bSMauro Carvalho Chehab fmt->code = MEDIA_BUS_FMT_SGRBG8_1X8; 604ad85094bSMauro Carvalho Chehab 605ad85094bSMauro Carvalho Chehab if (format->which == V4L2_SUBDEV_FORMAT_TRY) { 6060d346d2aSTomi Valkeinen sd_state->pads->try_fmt = *fmt; 607ad85094bSMauro Carvalho Chehab mutex_unlock(&dev->input_lock); 608ad85094bSMauro Carvalho Chehab return 0; 609ad85094bSMauro Carvalho Chehab } 610ad85094bSMauro Carvalho Chehab 611c5fafbadSHans de Goede /* s_power has not been called yet for std v4l2 clients (camorama) */ 612c5fafbadSHans de Goede power_up(sd); 613c5fafbadSHans de Goede 6142dfc978aSDeepak R Varma dev_dbg(&client->dev, "%s: before gc0310_write_reg_array %s\n", 615e3b14bf8SMauro Carvalho Chehab __func__, dev->res->desc); 616ad85094bSMauro Carvalho Chehab ret = startup(sd); 617ad85094bSMauro Carvalho Chehab if (ret) { 618ad85094bSMauro Carvalho Chehab dev_err(&client->dev, "gc0310 startup err\n"); 619ad85094bSMauro Carvalho Chehab goto err; 620ad85094bSMauro Carvalho Chehab } 621ad85094bSMauro Carvalho Chehab 622ad85094bSMauro Carvalho Chehab err: 623ad85094bSMauro Carvalho Chehab mutex_unlock(&dev->input_lock); 624ad85094bSMauro Carvalho Chehab return ret; 625ad85094bSMauro Carvalho Chehab } 626ad85094bSMauro Carvalho Chehab 627ad85094bSMauro Carvalho Chehab static int gc0310_get_fmt(struct v4l2_subdev *sd, 6280d346d2aSTomi Valkeinen struct v4l2_subdev_state *sd_state, 629ad85094bSMauro Carvalho Chehab struct v4l2_subdev_format *format) 630ad85094bSMauro Carvalho Chehab { 631ad85094bSMauro Carvalho Chehab struct v4l2_mbus_framefmt *fmt = &format->format; 632ad85094bSMauro Carvalho Chehab struct gc0310_device *dev = to_gc0310_sensor(sd); 633ad85094bSMauro Carvalho Chehab 634ad85094bSMauro Carvalho Chehab if (format->pad) 635ad85094bSMauro Carvalho Chehab return -EINVAL; 636ad85094bSMauro Carvalho Chehab 637ad85094bSMauro Carvalho Chehab if (!fmt) 638ad85094bSMauro Carvalho Chehab return -EINVAL; 639ad85094bSMauro Carvalho Chehab 640e3b14bf8SMauro Carvalho Chehab fmt->width = dev->res->width; 641e3b14bf8SMauro Carvalho Chehab fmt->height = dev->res->height; 642ad85094bSMauro Carvalho Chehab fmt->code = MEDIA_BUS_FMT_SGRBG8_1X8; 643ad85094bSMauro Carvalho Chehab 644ad85094bSMauro Carvalho Chehab return 0; 645ad85094bSMauro Carvalho Chehab } 646ad85094bSMauro Carvalho Chehab 647ad85094bSMauro Carvalho Chehab static int gc0310_detect(struct i2c_client *client) 648ad85094bSMauro Carvalho Chehab { 649ad85094bSMauro Carvalho Chehab struct i2c_adapter *adapter = client->adapter; 650ad85094bSMauro Carvalho Chehab u8 high, low; 651ad85094bSMauro Carvalho Chehab int ret; 652ad85094bSMauro Carvalho Chehab u16 id; 653ad85094bSMauro Carvalho Chehab 654ad85094bSMauro Carvalho Chehab if (!i2c_check_functionality(adapter, I2C_FUNC_I2C)) 655ad85094bSMauro Carvalho Chehab return -ENODEV; 656ad85094bSMauro Carvalho Chehab 657ad85094bSMauro Carvalho Chehab ret = gc0310_read_reg(client, GC0310_8BIT, 658ad85094bSMauro Carvalho Chehab GC0310_SC_CMMN_CHIP_ID_H, &high); 659ad85094bSMauro Carvalho Chehab if (ret) { 660ad85094bSMauro Carvalho Chehab dev_err(&client->dev, "read sensor_id_high failed\n"); 661ad85094bSMauro Carvalho Chehab return -ENODEV; 662ad85094bSMauro Carvalho Chehab } 663ad85094bSMauro Carvalho Chehab ret = gc0310_read_reg(client, GC0310_8BIT, 664ad85094bSMauro Carvalho Chehab GC0310_SC_CMMN_CHIP_ID_L, &low); 665ad85094bSMauro Carvalho Chehab if (ret) { 666ad85094bSMauro Carvalho Chehab dev_err(&client->dev, "read sensor_id_low failed\n"); 667ad85094bSMauro Carvalho Chehab return -ENODEV; 668ad85094bSMauro Carvalho Chehab } 669ad85094bSMauro Carvalho Chehab id = ((((u16)high) << 8) | (u16)low); 6702dfc978aSDeepak R Varma dev_dbg(&client->dev, "sensor ID = 0x%x\n", id); 671ad85094bSMauro Carvalho Chehab 672ad85094bSMauro Carvalho Chehab if (id != GC0310_ID) { 673eaa399ebSMauro Carvalho Chehab dev_err(&client->dev, "sensor ID error, read id = 0x%x, target id = 0x%x\n", id, 674eaa399ebSMauro Carvalho Chehab GC0310_ID); 675ad85094bSMauro Carvalho Chehab return -ENODEV; 676ad85094bSMauro Carvalho Chehab } 677ad85094bSMauro Carvalho Chehab 678ad85094bSMauro Carvalho Chehab dev_dbg(&client->dev, "detect gc0310 success\n"); 679ad85094bSMauro Carvalho Chehab 680ad85094bSMauro Carvalho Chehab return 0; 681ad85094bSMauro Carvalho Chehab } 682ad85094bSMauro Carvalho Chehab 683ad85094bSMauro Carvalho Chehab static int gc0310_s_stream(struct v4l2_subdev *sd, int enable) 684ad85094bSMauro Carvalho Chehab { 685ad85094bSMauro Carvalho Chehab struct gc0310_device *dev = to_gc0310_sensor(sd); 686ad85094bSMauro Carvalho Chehab struct i2c_client *client = v4l2_get_subdevdata(sd); 687ad85094bSMauro Carvalho Chehab int ret; 688ad85094bSMauro Carvalho Chehab 6892dfc978aSDeepak R Varma dev_dbg(&client->dev, "%s S enable=%d\n", __func__, enable); 690ad85094bSMauro Carvalho Chehab mutex_lock(&dev->input_lock); 691ad85094bSMauro Carvalho Chehab 692ad85094bSMauro Carvalho Chehab if (enable) { 693ad85094bSMauro Carvalho Chehab /* enable per frame MIPI and sensor ctrl reset */ 694ad85094bSMauro Carvalho Chehab ret = gc0310_write_reg(client, GC0310_8BIT, 695ad85094bSMauro Carvalho Chehab 0xFE, 0x30); 696ad85094bSMauro Carvalho Chehab if (ret) { 697ad85094bSMauro Carvalho Chehab mutex_unlock(&dev->input_lock); 698ad85094bSMauro Carvalho Chehab return ret; 699ad85094bSMauro Carvalho Chehab } 700ad85094bSMauro Carvalho Chehab } 701ad85094bSMauro Carvalho Chehab 702ad85094bSMauro Carvalho Chehab ret = gc0310_write_reg(client, GC0310_8BIT, 703ad85094bSMauro Carvalho Chehab GC0310_RESET_RELATED, GC0310_REGISTER_PAGE_3); 704ad85094bSMauro Carvalho Chehab if (ret) { 705ad85094bSMauro Carvalho Chehab mutex_unlock(&dev->input_lock); 706ad85094bSMauro Carvalho Chehab return ret; 707ad85094bSMauro Carvalho Chehab } 708ad85094bSMauro Carvalho Chehab 709ad85094bSMauro Carvalho Chehab ret = gc0310_write_reg(client, GC0310_8BIT, GC0310_SW_STREAM, 710ad85094bSMauro Carvalho Chehab enable ? GC0310_START_STREAMING : 711ad85094bSMauro Carvalho Chehab GC0310_STOP_STREAMING); 712ad85094bSMauro Carvalho Chehab if (ret) { 713ad85094bSMauro Carvalho Chehab mutex_unlock(&dev->input_lock); 714ad85094bSMauro Carvalho Chehab return ret; 715ad85094bSMauro Carvalho Chehab } 716ad85094bSMauro Carvalho Chehab 717ad85094bSMauro Carvalho Chehab ret = gc0310_write_reg(client, GC0310_8BIT, 718ad85094bSMauro Carvalho Chehab GC0310_RESET_RELATED, GC0310_REGISTER_PAGE_0); 719ad85094bSMauro Carvalho Chehab if (ret) { 720ad85094bSMauro Carvalho Chehab mutex_unlock(&dev->input_lock); 721ad85094bSMauro Carvalho Chehab return ret; 722ad85094bSMauro Carvalho Chehab } 723ad85094bSMauro Carvalho Chehab 724ad85094bSMauro Carvalho Chehab mutex_unlock(&dev->input_lock); 725ad85094bSMauro Carvalho Chehab return ret; 726ad85094bSMauro Carvalho Chehab } 727ad85094bSMauro Carvalho Chehab 728ad85094bSMauro Carvalho Chehab static int gc0310_s_config(struct v4l2_subdev *sd, 729ad85094bSMauro Carvalho Chehab int irq, void *platform_data) 730ad85094bSMauro Carvalho Chehab { 731ad85094bSMauro Carvalho Chehab struct gc0310_device *dev = to_gc0310_sensor(sd); 732ad85094bSMauro Carvalho Chehab struct i2c_client *client = v4l2_get_subdevdata(sd); 733ad85094bSMauro Carvalho Chehab int ret = 0; 734ad85094bSMauro Carvalho Chehab 735ad85094bSMauro Carvalho Chehab if (!platform_data) 736ad85094bSMauro Carvalho Chehab return -ENODEV; 737ad85094bSMauro Carvalho Chehab 738ad85094bSMauro Carvalho Chehab dev->platform_data = 739ad85094bSMauro Carvalho Chehab (struct camera_sensor_platform_data *)platform_data; 740ad85094bSMauro Carvalho Chehab 741ad85094bSMauro Carvalho Chehab mutex_lock(&dev->input_lock); 742ad85094bSMauro Carvalho Chehab /* power off the module, then power on it in future 743ad85094bSMauro Carvalho Chehab * as first power on by board may not fulfill the 744ad85094bSMauro Carvalho Chehab * power on sequqence needed by the module 745ad85094bSMauro Carvalho Chehab */ 746c5fafbadSHans de Goede dev->power_on = true; /* force power_down() to run */ 747ad85094bSMauro Carvalho Chehab ret = power_down(sd); 748ad85094bSMauro Carvalho Chehab if (ret) { 749ad85094bSMauro Carvalho Chehab dev_err(&client->dev, "gc0310 power-off err.\n"); 750ad85094bSMauro Carvalho Chehab goto fail_power_off; 751ad85094bSMauro Carvalho Chehab } 752ad85094bSMauro Carvalho Chehab 753ad85094bSMauro Carvalho Chehab ret = power_up(sd); 754ad85094bSMauro Carvalho Chehab if (ret) { 755ad85094bSMauro Carvalho Chehab dev_err(&client->dev, "gc0310 power-up err.\n"); 756ad85094bSMauro Carvalho Chehab goto fail_power_on; 757ad85094bSMauro Carvalho Chehab } 758ad85094bSMauro Carvalho Chehab 759ad85094bSMauro Carvalho Chehab ret = dev->platform_data->csi_cfg(sd, 1); 760ad85094bSMauro Carvalho Chehab if (ret) 761ad85094bSMauro Carvalho Chehab goto fail_csi_cfg; 762ad85094bSMauro Carvalho Chehab 763ad85094bSMauro Carvalho Chehab /* config & detect sensor */ 764ad85094bSMauro Carvalho Chehab ret = gc0310_detect(client); 765ad85094bSMauro Carvalho Chehab if (ret) { 766ad85094bSMauro Carvalho Chehab dev_err(&client->dev, "gc0310_detect err s_config.\n"); 767ad85094bSMauro Carvalho Chehab goto fail_csi_cfg; 768ad85094bSMauro Carvalho Chehab } 769ad85094bSMauro Carvalho Chehab 770ad85094bSMauro Carvalho Chehab /* turn off sensor, after probed */ 771ad85094bSMauro Carvalho Chehab ret = power_down(sd); 772ad85094bSMauro Carvalho Chehab if (ret) { 773ad85094bSMauro Carvalho Chehab dev_err(&client->dev, "gc0310 power-off err.\n"); 774ad85094bSMauro Carvalho Chehab goto fail_csi_cfg; 775ad85094bSMauro Carvalho Chehab } 776ad85094bSMauro Carvalho Chehab mutex_unlock(&dev->input_lock); 777ad85094bSMauro Carvalho Chehab 778ad85094bSMauro Carvalho Chehab return 0; 779ad85094bSMauro Carvalho Chehab 780ad85094bSMauro Carvalho Chehab fail_csi_cfg: 781ad85094bSMauro Carvalho Chehab dev->platform_data->csi_cfg(sd, 0); 782ad85094bSMauro Carvalho Chehab fail_power_on: 783ad85094bSMauro Carvalho Chehab power_down(sd); 784ad85094bSMauro Carvalho Chehab dev_err(&client->dev, "sensor power-gating failed\n"); 785ad85094bSMauro Carvalho Chehab fail_power_off: 786ad85094bSMauro Carvalho Chehab mutex_unlock(&dev->input_lock); 787ad85094bSMauro Carvalho Chehab return ret; 788ad85094bSMauro Carvalho Chehab } 789ad85094bSMauro Carvalho Chehab 790ad85094bSMauro Carvalho Chehab static int gc0310_g_frame_interval(struct v4l2_subdev *sd, 791ad85094bSMauro Carvalho Chehab struct v4l2_subdev_frame_interval *interval) 792ad85094bSMauro Carvalho Chehab { 793ad85094bSMauro Carvalho Chehab struct gc0310_device *dev = to_gc0310_sensor(sd); 794ad85094bSMauro Carvalho Chehab 795ad85094bSMauro Carvalho Chehab interval->interval.numerator = 1; 796e3b14bf8SMauro Carvalho Chehab interval->interval.denominator = dev->res->fps; 797ad85094bSMauro Carvalho Chehab 798ad85094bSMauro Carvalho Chehab return 0; 799ad85094bSMauro Carvalho Chehab } 800ad85094bSMauro Carvalho Chehab 801ad85094bSMauro Carvalho Chehab static int gc0310_enum_mbus_code(struct v4l2_subdev *sd, 8020d346d2aSTomi Valkeinen struct v4l2_subdev_state *sd_state, 803ad85094bSMauro Carvalho Chehab struct v4l2_subdev_mbus_code_enum *code) 804ad85094bSMauro Carvalho Chehab { 805ad85094bSMauro Carvalho Chehab if (code->index >= MAX_FMTS) 806ad85094bSMauro Carvalho Chehab return -EINVAL; 807ad85094bSMauro Carvalho Chehab 808ad85094bSMauro Carvalho Chehab code->code = MEDIA_BUS_FMT_SGRBG8_1X8; 809ad85094bSMauro Carvalho Chehab return 0; 810ad85094bSMauro Carvalho Chehab } 811ad85094bSMauro Carvalho Chehab 812ad85094bSMauro Carvalho Chehab static int gc0310_enum_frame_size(struct v4l2_subdev *sd, 8130d346d2aSTomi Valkeinen struct v4l2_subdev_state *sd_state, 814ad85094bSMauro Carvalho Chehab struct v4l2_subdev_frame_size_enum *fse) 815ad85094bSMauro Carvalho Chehab { 816ad85094bSMauro Carvalho Chehab int index = fse->index; 817ad85094bSMauro Carvalho Chehab 818ad85094bSMauro Carvalho Chehab if (index >= N_RES) 819ad85094bSMauro Carvalho Chehab return -EINVAL; 820ad85094bSMauro Carvalho Chehab 821ad85094bSMauro Carvalho Chehab fse->min_width = gc0310_res[index].width; 822ad85094bSMauro Carvalho Chehab fse->min_height = gc0310_res[index].height; 823ad85094bSMauro Carvalho Chehab fse->max_width = gc0310_res[index].width; 824ad85094bSMauro Carvalho Chehab fse->max_height = gc0310_res[index].height; 825ad85094bSMauro Carvalho Chehab 826ad85094bSMauro Carvalho Chehab return 0; 827ad85094bSMauro Carvalho Chehab } 828ad85094bSMauro Carvalho Chehab 829ad85094bSMauro Carvalho Chehab static int gc0310_g_skip_frames(struct v4l2_subdev *sd, u32 *frames) 830ad85094bSMauro Carvalho Chehab { 831ad85094bSMauro Carvalho Chehab struct gc0310_device *dev = to_gc0310_sensor(sd); 832ad85094bSMauro Carvalho Chehab 833ad85094bSMauro Carvalho Chehab mutex_lock(&dev->input_lock); 834e3b14bf8SMauro Carvalho Chehab *frames = dev->res->skip_frames; 835ad85094bSMauro Carvalho Chehab mutex_unlock(&dev->input_lock); 836ad85094bSMauro Carvalho Chehab 837ad85094bSMauro Carvalho Chehab return 0; 838ad85094bSMauro Carvalho Chehab } 839ad85094bSMauro Carvalho Chehab 840ad85094bSMauro Carvalho Chehab static const struct v4l2_subdev_sensor_ops gc0310_sensor_ops = { 841ad85094bSMauro Carvalho Chehab .g_skip_frames = gc0310_g_skip_frames, 842ad85094bSMauro Carvalho Chehab }; 843ad85094bSMauro Carvalho Chehab 844ad85094bSMauro Carvalho Chehab static const struct v4l2_subdev_video_ops gc0310_video_ops = { 845ad85094bSMauro Carvalho Chehab .s_stream = gc0310_s_stream, 846ad85094bSMauro Carvalho Chehab .g_frame_interval = gc0310_g_frame_interval, 847ad85094bSMauro Carvalho Chehab }; 848ad85094bSMauro Carvalho Chehab 849ad85094bSMauro Carvalho Chehab static const struct v4l2_subdev_core_ops gc0310_core_ops = { 850ad85094bSMauro Carvalho Chehab .s_power = gc0310_s_power, 851ad85094bSMauro Carvalho Chehab .ioctl = gc0310_ioctl, 852ad85094bSMauro Carvalho Chehab }; 853ad85094bSMauro Carvalho Chehab 854ad85094bSMauro Carvalho Chehab static const struct v4l2_subdev_pad_ops gc0310_pad_ops = { 855ad85094bSMauro Carvalho Chehab .enum_mbus_code = gc0310_enum_mbus_code, 856ad85094bSMauro Carvalho Chehab .enum_frame_size = gc0310_enum_frame_size, 857ad85094bSMauro Carvalho Chehab .get_fmt = gc0310_get_fmt, 858ad85094bSMauro Carvalho Chehab .set_fmt = gc0310_set_fmt, 859ad85094bSMauro Carvalho Chehab }; 860ad85094bSMauro Carvalho Chehab 861ad85094bSMauro Carvalho Chehab static const struct v4l2_subdev_ops gc0310_ops = { 862ad85094bSMauro Carvalho Chehab .core = &gc0310_core_ops, 863ad85094bSMauro Carvalho Chehab .video = &gc0310_video_ops, 864ad85094bSMauro Carvalho Chehab .pad = &gc0310_pad_ops, 865ad85094bSMauro Carvalho Chehab .sensor = &gc0310_sensor_ops, 866ad85094bSMauro Carvalho Chehab }; 867ad85094bSMauro Carvalho Chehab 868ed5c2f5fSUwe Kleine-König static void gc0310_remove(struct i2c_client *client) 869ad85094bSMauro Carvalho Chehab { 870ad85094bSMauro Carvalho Chehab struct v4l2_subdev *sd = i2c_get_clientdata(client); 871ad85094bSMauro Carvalho Chehab struct gc0310_device *dev = to_gc0310_sensor(sd); 872bdfe0bebSMauro Carvalho Chehab 873ad85094bSMauro Carvalho Chehab dev_dbg(&client->dev, "gc0310_remove...\n"); 874ad85094bSMauro Carvalho Chehab 875ad85094bSMauro Carvalho Chehab dev->platform_data->csi_cfg(sd, 0); 876ad85094bSMauro Carvalho Chehab 877ad85094bSMauro Carvalho Chehab v4l2_device_unregister_subdev(sd); 878ad85094bSMauro Carvalho Chehab media_entity_cleanup(&dev->sd.entity); 879ad85094bSMauro Carvalho Chehab v4l2_ctrl_handler_free(&dev->ctrl_handler); 880ad85094bSMauro Carvalho Chehab kfree(dev); 881ad85094bSMauro Carvalho Chehab } 882ad85094bSMauro Carvalho Chehab 883ad85094bSMauro Carvalho Chehab static int gc0310_probe(struct i2c_client *client) 884ad85094bSMauro Carvalho Chehab { 885ad85094bSMauro Carvalho Chehab struct gc0310_device *dev; 886ad85094bSMauro Carvalho Chehab int ret; 887ad85094bSMauro Carvalho Chehab void *pdata; 888ad85094bSMauro Carvalho Chehab unsigned int i; 889c03496b3SMauro Carvalho Chehab 890ad85094bSMauro Carvalho Chehab dev = kzalloc(sizeof(*dev), GFP_KERNEL); 891ad85094bSMauro Carvalho Chehab if (!dev) 892ad85094bSMauro Carvalho Chehab return -ENOMEM; 893ad85094bSMauro Carvalho Chehab 894ad85094bSMauro Carvalho Chehab mutex_init(&dev->input_lock); 895ad85094bSMauro Carvalho Chehab 896e3b14bf8SMauro Carvalho Chehab dev->res = &gc0310_res_preview[0]; 897bdfe0bebSMauro Carvalho Chehab v4l2_i2c_subdev_init(&dev->sd, client, &gc0310_ops); 898ad85094bSMauro Carvalho Chehab 899ad85094bSMauro Carvalho Chehab pdata = gmin_camera_platform_data(&dev->sd, 900ad85094bSMauro Carvalho Chehab ATOMISP_INPUT_FORMAT_RAW_8, 901ad85094bSMauro Carvalho Chehab atomisp_bayer_order_grbg); 902ad85094bSMauro Carvalho Chehab if (!pdata) { 903ad85094bSMauro Carvalho Chehab ret = -EINVAL; 904ad85094bSMauro Carvalho Chehab goto out_free; 905ad85094bSMauro Carvalho Chehab } 906ad85094bSMauro Carvalho Chehab 907ad85094bSMauro Carvalho Chehab ret = gc0310_s_config(&dev->sd, client->irq, pdata); 908ad85094bSMauro Carvalho Chehab if (ret) 909ad85094bSMauro Carvalho Chehab goto out_free; 910ad85094bSMauro Carvalho Chehab 911ad85094bSMauro Carvalho Chehab ret = atomisp_register_i2c_module(&dev->sd, pdata, RAW_CAMERA); 912ad85094bSMauro Carvalho Chehab if (ret) 913ad85094bSMauro Carvalho Chehab goto out_free; 914ad85094bSMauro Carvalho Chehab 915ad85094bSMauro Carvalho Chehab dev->sd.flags |= V4L2_SUBDEV_FL_HAS_DEVNODE; 916ad85094bSMauro Carvalho Chehab dev->pad.flags = MEDIA_PAD_FL_SOURCE; 917ad85094bSMauro Carvalho Chehab dev->format.code = MEDIA_BUS_FMT_SGRBG8_1X8; 918ad85094bSMauro Carvalho Chehab dev->sd.entity.function = MEDIA_ENT_F_CAM_SENSOR; 919ad85094bSMauro Carvalho Chehab ret = 920ad85094bSMauro Carvalho Chehab v4l2_ctrl_handler_init(&dev->ctrl_handler, 921ad85094bSMauro Carvalho Chehab ARRAY_SIZE(gc0310_controls)); 922ad85094bSMauro Carvalho Chehab if (ret) { 923ad85094bSMauro Carvalho Chehab gc0310_remove(client); 924ad85094bSMauro Carvalho Chehab return ret; 925ad85094bSMauro Carvalho Chehab } 926ad85094bSMauro Carvalho Chehab 927ad85094bSMauro Carvalho Chehab for (i = 0; i < ARRAY_SIZE(gc0310_controls); i++) 928ad85094bSMauro Carvalho Chehab v4l2_ctrl_new_custom(&dev->ctrl_handler, &gc0310_controls[i], 929ad85094bSMauro Carvalho Chehab NULL); 930ad85094bSMauro Carvalho Chehab 931ad85094bSMauro Carvalho Chehab if (dev->ctrl_handler.error) { 932ad85094bSMauro Carvalho Chehab gc0310_remove(client); 933ad85094bSMauro Carvalho Chehab return dev->ctrl_handler.error; 934ad85094bSMauro Carvalho Chehab } 935ad85094bSMauro Carvalho Chehab 936ad85094bSMauro Carvalho Chehab /* Use same lock for controls as for everything else. */ 937ad85094bSMauro Carvalho Chehab dev->ctrl_handler.lock = &dev->input_lock; 938ad85094bSMauro Carvalho Chehab dev->sd.ctrl_handler = &dev->ctrl_handler; 939ad85094bSMauro Carvalho Chehab 940ad85094bSMauro Carvalho Chehab ret = media_entity_pads_init(&dev->sd.entity, 1, &dev->pad); 941ad85094bSMauro Carvalho Chehab if (ret) 942ad85094bSMauro Carvalho Chehab gc0310_remove(client); 943ad85094bSMauro Carvalho Chehab 944ad85094bSMauro Carvalho Chehab return ret; 945ad85094bSMauro Carvalho Chehab out_free: 946ad85094bSMauro Carvalho Chehab v4l2_device_unregister_subdev(&dev->sd); 947ad85094bSMauro Carvalho Chehab kfree(dev); 948ad85094bSMauro Carvalho Chehab return ret; 949ad85094bSMauro Carvalho Chehab } 950ad85094bSMauro Carvalho Chehab 951ad85094bSMauro Carvalho Chehab static const struct acpi_device_id gc0310_acpi_match[] = { 952ad85094bSMauro Carvalho Chehab {"XXGC0310"}, 953ad85094bSMauro Carvalho Chehab {"INT0310"}, 954ad85094bSMauro Carvalho Chehab {}, 955ad85094bSMauro Carvalho Chehab }; 956ad85094bSMauro Carvalho Chehab MODULE_DEVICE_TABLE(acpi, gc0310_acpi_match); 957ad85094bSMauro Carvalho Chehab 958ad85094bSMauro Carvalho Chehab static struct i2c_driver gc0310_driver = { 959ad85094bSMauro Carvalho Chehab .driver = { 960ad85094bSMauro Carvalho Chehab .name = "gc0310", 961ad85094bSMauro Carvalho Chehab .acpi_match_table = gc0310_acpi_match, 962ad85094bSMauro Carvalho Chehab }, 963ad85094bSMauro Carvalho Chehab .probe_new = gc0310_probe, 964ad85094bSMauro Carvalho Chehab .remove = gc0310_remove, 965ad85094bSMauro Carvalho Chehab }; 966ad85094bSMauro Carvalho Chehab module_i2c_driver(gc0310_driver); 967ad85094bSMauro Carvalho Chehab 968ad85094bSMauro Carvalho Chehab MODULE_AUTHOR("Lai, Angie <angie.lai@intel.com>"); 969ad85094bSMauro Carvalho Chehab MODULE_DESCRIPTION("A low-level driver for GalaxyCore GC0310 sensors"); 970ad85094bSMauro Carvalho Chehab MODULE_LICENSE("GPL"); 971