Viswanadha Raju Thotakura | 7208eb7 | 2017-02-26 16:56:34 -0800 | [diff] [blame] | 1 | /* Copyright (c) 2017, The Linux Foundation. All rights reserved. |
| 2 | * |
| 3 | * This program is free software; you can redistribute it and/or modify |
| 4 | * it under the terms of the GNU General Public License version 2 and |
| 5 | * only version 2 as published by the Free Software Foundation. |
| 6 | * |
| 7 | * This program is distributed in the hope that it will be useful, |
| 8 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 9 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 10 | * GNU General Public License for more details. |
| 11 | */ |
| 12 | |
| 13 | #include "cam_sensor_dev.h" |
| 14 | #include "cam_req_mgr_dev.h" |
| 15 | #include "cam_sensor_soc.h" |
| 16 | #include "cam_sensor_core.h" |
| 17 | |
| 18 | static long cam_sensor_subdev_ioctl(struct v4l2_subdev *sd, |
| 19 | unsigned int cmd, void *arg) |
| 20 | { |
| 21 | int rc = 0; |
| 22 | struct cam_sensor_ctrl_t *s_ctrl = |
| 23 | v4l2_get_subdevdata(sd); |
| 24 | |
| 25 | switch (cmd) { |
| 26 | case VIDIOC_CAM_CONTROL: |
| 27 | rc = cam_sensor_driver_cmd(s_ctrl, arg); |
| 28 | break; |
| 29 | default: |
| 30 | pr_err("%s:%d Invalid ioctl cmd: %d\n", |
| 31 | __func__, __LINE__, cmd); |
| 32 | rc = -EINVAL; |
| 33 | break; |
| 34 | } |
| 35 | return rc; |
| 36 | } |
| 37 | |
| 38 | static int32_t cam_sensor_driver_i2c_probe(struct i2c_client *client, |
| 39 | const struct i2c_device_id *id) |
| 40 | { |
| 41 | int32_t rc = 0; |
| 42 | struct cam_sensor_ctrl_t *s_ctrl; |
| 43 | |
| 44 | if (!i2c_check_functionality(client->adapter, I2C_FUNC_I2C)) { |
| 45 | pr_err("%s %s :Error: i2c_check_functionality failed\n", |
| 46 | __func__, client->name); |
| 47 | return -EFAULT; |
| 48 | } |
| 49 | |
| 50 | /* Create sensor control structure */ |
| 51 | s_ctrl = kzalloc(sizeof(*s_ctrl), GFP_KERNEL); |
| 52 | if (!s_ctrl) |
| 53 | return -ENOMEM; |
| 54 | |
| 55 | i2c_set_clientdata(client, s_ctrl); |
| 56 | |
| 57 | /* Initialize sensor device type */ |
| 58 | s_ctrl->of_node = client->dev.of_node; |
| 59 | s_ctrl->io_master_info.master_type = I2C_MASTER; |
| 60 | |
| 61 | rc = cam_sensor_parse_dt(s_ctrl); |
| 62 | if (rc < 0) { |
| 63 | pr_err("%s:%d :Error: cam_sensor_parse_dt rc %d", |
| 64 | __func__, __LINE__, rc); |
| 65 | goto free_s_ctrl; |
| 66 | } |
| 67 | |
| 68 | return rc; |
| 69 | free_s_ctrl: |
| 70 | kfree(s_ctrl); |
| 71 | return rc; |
| 72 | } |
| 73 | |
| 74 | static int cam_sensor_platform_remove(struct platform_device *pdev) |
| 75 | { |
| 76 | struct cam_sensor_ctrl_t *s_ctrl; |
| 77 | |
| 78 | s_ctrl = platform_get_drvdata(pdev); |
| 79 | if (!s_ctrl) { |
| 80 | pr_err("%s: sensor device is NULL\n", __func__); |
| 81 | return 0; |
| 82 | } |
| 83 | |
| 84 | kfree(s_ctrl->i2c_data.per_frame); |
| 85 | devm_kfree(&pdev->dev, s_ctrl); |
| 86 | |
| 87 | return 0; |
| 88 | } |
| 89 | |
| 90 | static int cam_sensor_driver_i2c_remove(struct i2c_client *client) |
| 91 | { |
| 92 | struct cam_sensor_ctrl_t *s_ctrl = i2c_get_clientdata(client); |
| 93 | |
| 94 | if (!s_ctrl) { |
| 95 | pr_err("%s: sensor device is NULL\n", __func__); |
| 96 | return 0; |
| 97 | } |
| 98 | |
| 99 | kfree(s_ctrl->i2c_data.per_frame); |
| 100 | kfree(s_ctrl); |
| 101 | |
| 102 | return 0; |
| 103 | } |
| 104 | |
| 105 | #ifdef CONFIG_COMPAT |
| 106 | static long cam_sensor_init_subdev_do_ioctl(struct v4l2_subdev *sd, |
| 107 | unsigned int cmd, unsigned long arg) |
| 108 | { |
| 109 | struct cam_control cmd_data; |
| 110 | int32_t rc = 0; |
| 111 | |
| 112 | if (copy_from_user(&cmd_data, (void __user *)arg, |
| 113 | sizeof(cmd_data))) { |
| 114 | pr_err("Failed to copy from user_ptr=%pK size=%zu\n", |
| 115 | (void __user *)arg, sizeof(cmd_data)); |
| 116 | return -EFAULT; |
| 117 | } |
| 118 | |
| 119 | switch (cmd) { |
| 120 | case VIDIOC_CAM_CONTROL: |
| 121 | rc = cam_sensor_subdev_ioctl(sd, cmd, &cmd_data); |
| 122 | if (rc < 0) |
| 123 | pr_err("%s:%d cam_sensor_subdev_ioctl failed\n", |
| 124 | __func__, __LINE__); |
| 125 | break; |
| 126 | default: |
| 127 | pr_err("%s:%d Invalid compat ioctl cmd_type: %d\n", |
| 128 | __func__, __LINE__, cmd); |
| 129 | rc = -EINVAL; |
| 130 | } |
| 131 | |
| 132 | if (!rc) { |
| 133 | if (copy_to_user((void __user *)arg, &cmd_data, |
| 134 | sizeof(cmd_data))) { |
| 135 | pr_err("Failed to copy to user_ptr=%pK size=%zu\n", |
| 136 | (void __user *)arg, sizeof(cmd_data)); |
| 137 | rc = -EFAULT; |
| 138 | } |
| 139 | } |
| 140 | return rc; |
| 141 | } |
| 142 | |
| 143 | #endif |
| 144 | |
| 145 | static struct v4l2_subdev_core_ops cam_sensor_subdev_core_ops = { |
| 146 | .ioctl = cam_sensor_subdev_ioctl, |
| 147 | #ifdef CONFIG_COMPAT |
| 148 | .compat_ioctl32 = cam_sensor_init_subdev_do_ioctl, |
| 149 | #endif |
| 150 | .s_power = cam_sensor_power, |
| 151 | }; |
| 152 | |
| 153 | static struct v4l2_subdev_ops cam_sensor_subdev_ops = { |
| 154 | .core = &cam_sensor_subdev_core_ops, |
| 155 | }; |
| 156 | |
| 157 | static const struct v4l2_subdev_internal_ops cam_sensor_internal_ops; |
| 158 | |
| 159 | static const struct of_device_id cam_sensor_driver_dt_match[] = { |
| 160 | {.compatible = "qcom,cam-sensor"}, |
| 161 | {} |
| 162 | }; |
| 163 | |
| 164 | static int32_t cam_sensor_driver_platform_probe( |
| 165 | struct platform_device *pdev) |
| 166 | { |
| 167 | int32_t rc = 0, i = 0; |
| 168 | struct cam_sensor_ctrl_t *s_ctrl = NULL; |
Alok Pandey | 01b1b35 | 2017-06-25 20:38:54 +0530 | [diff] [blame] | 169 | struct cam_hw_soc_info *soc_info = NULL; |
Viswanadha Raju Thotakura | 7208eb7 | 2017-02-26 16:56:34 -0800 | [diff] [blame] | 170 | |
| 171 | /* Create sensor control structure */ |
| 172 | s_ctrl = devm_kzalloc(&pdev->dev, |
| 173 | sizeof(struct cam_sensor_ctrl_t), GFP_KERNEL); |
| 174 | if (!s_ctrl) |
| 175 | return -ENOMEM; |
| 176 | |
Alok Pandey | 01b1b35 | 2017-06-25 20:38:54 +0530 | [diff] [blame] | 177 | soc_info = &s_ctrl->soc_info; |
| 178 | soc_info->pdev = pdev; |
| 179 | |
Viswanadha Raju Thotakura | 7208eb7 | 2017-02-26 16:56:34 -0800 | [diff] [blame] | 180 | /* Initialize sensor device type */ |
| 181 | s_ctrl->of_node = pdev->dev.of_node; |
| 182 | s_ctrl->is_probe_succeed = 0; |
| 183 | |
| 184 | /*fill in platform device*/ |
| 185 | s_ctrl->pdev = pdev; |
| 186 | |
| 187 | s_ctrl->io_master_info.master_type = CCI_MASTER; |
| 188 | |
| 189 | rc = cam_sensor_parse_dt(s_ctrl); |
| 190 | if (rc < 0) { |
| 191 | pr_err("failed: cam_sensor_parse_dt rc %d", rc); |
| 192 | goto free_s_ctrl; |
| 193 | } |
| 194 | |
| 195 | /* Fill platform device id*/ |
Alok Pandey | 01b1b35 | 2017-06-25 20:38:54 +0530 | [diff] [blame] | 196 | pdev->id = soc_info->index; |
Viswanadha Raju Thotakura | 7208eb7 | 2017-02-26 16:56:34 -0800 | [diff] [blame] | 197 | |
| 198 | s_ctrl->v4l2_dev_str.internal_ops = |
| 199 | &cam_sensor_internal_ops; |
| 200 | s_ctrl->v4l2_dev_str.ops = |
| 201 | &cam_sensor_subdev_ops; |
| 202 | strlcpy(s_ctrl->device_name, CAMX_SENSOR_DEV_NAME, |
| 203 | sizeof(s_ctrl->device_name)); |
| 204 | s_ctrl->v4l2_dev_str.name = |
| 205 | s_ctrl->device_name; |
| 206 | s_ctrl->v4l2_dev_str.sd_flags = |
| 207 | (V4L2_SUBDEV_FL_HAS_DEVNODE | V4L2_SUBDEV_FL_HAS_EVENTS); |
| 208 | s_ctrl->v4l2_dev_str.ent_function = |
| 209 | CAM_SENSOR_DEVICE_TYPE; |
| 210 | s_ctrl->v4l2_dev_str.token = s_ctrl; |
| 211 | |
| 212 | rc = cam_register_subdev(&(s_ctrl->v4l2_dev_str)); |
| 213 | if (rc < 0) { |
| 214 | pr_err("%s:%d :ERROR: Fail with cam_register_subdev\n", |
| 215 | __func__, __LINE__); |
| 216 | goto free_s_ctrl; |
| 217 | } |
| 218 | |
| 219 | s_ctrl->i2c_data.per_frame = |
| 220 | (struct i2c_settings_array *) |
| 221 | kzalloc(sizeof(struct i2c_settings_array) * |
| 222 | MAX_PER_FRAME_ARRAY, GFP_KERNEL); |
| 223 | if (s_ctrl->i2c_data.per_frame == NULL) { |
| 224 | rc = -ENOMEM; |
| 225 | goto free_s_ctrl; |
| 226 | } |
| 227 | |
| 228 | INIT_LIST_HEAD(&(s_ctrl->i2c_data.init_settings.list_head)); |
| 229 | |
| 230 | for (i = 0; i < MAX_PER_FRAME_ARRAY; i++) |
| 231 | INIT_LIST_HEAD(&(s_ctrl->i2c_data.per_frame[i].list_head)); |
| 232 | |
| 233 | s_ctrl->bridge_intf.device_hdl = -1; |
| 234 | s_ctrl->bridge_intf.ops.get_dev_info = cam_sensor_publish_dev_info; |
| 235 | s_ctrl->bridge_intf.ops.link_setup = cam_sensor_establish_link; |
| 236 | s_ctrl->bridge_intf.ops.apply_req = cam_sensor_apply_request; |
Vivek Veenam | d5e39cd | 2017-05-23 15:48:03 +0530 | [diff] [blame] | 237 | s_ctrl->bridge_intf.ops.flush_req = cam_sensor_flush_request; |
Viswanadha Raju Thotakura | 7208eb7 | 2017-02-26 16:56:34 -0800 | [diff] [blame] | 238 | |
| 239 | s_ctrl->sensordata->power_info.dev = &pdev->dev; |
| 240 | platform_set_drvdata(pdev, s_ctrl); |
| 241 | v4l2_set_subdevdata(&(s_ctrl->v4l2_dev_str.sd), s_ctrl); |
| 242 | |
| 243 | return rc; |
| 244 | free_s_ctrl: |
| 245 | devm_kfree(&pdev->dev, s_ctrl); |
| 246 | return rc; |
| 247 | } |
| 248 | |
| 249 | MODULE_DEVICE_TABLE(of, cam_sensor_driver_dt_match); |
| 250 | |
| 251 | static struct platform_driver cam_sensor_platform_driver = { |
| 252 | .probe = cam_sensor_driver_platform_probe, |
| 253 | .driver = { |
| 254 | .name = "qcom,camera", |
| 255 | .owner = THIS_MODULE, |
| 256 | .of_match_table = cam_sensor_driver_dt_match, |
| 257 | }, |
| 258 | .remove = cam_sensor_platform_remove, |
| 259 | }; |
| 260 | |
| 261 | static const struct i2c_device_id i2c_id[] = { |
| 262 | {SENSOR_DRIVER_I2C, (kernel_ulong_t)NULL}, |
| 263 | { } |
| 264 | }; |
| 265 | |
| 266 | static struct i2c_driver cam_sensor_driver_i2c = { |
| 267 | .id_table = i2c_id, |
| 268 | .probe = cam_sensor_driver_i2c_probe, |
| 269 | .remove = cam_sensor_driver_i2c_remove, |
| 270 | .driver = { |
| 271 | .name = SENSOR_DRIVER_I2C, |
| 272 | }, |
| 273 | }; |
| 274 | |
| 275 | static int __init cam_sensor_driver_init(void) |
| 276 | { |
| 277 | int32_t rc = 0; |
| 278 | |
| 279 | rc = platform_driver_register(&cam_sensor_platform_driver); |
| 280 | if (rc) |
| 281 | pr_err("%s platform_driver_register failed rc = %d", |
| 282 | __func__, rc); |
| 283 | rc = i2c_add_driver(&cam_sensor_driver_i2c); |
| 284 | if (rc) |
| 285 | pr_err("%s i2c_add_driver failed rc = %d", __func__, rc); |
| 286 | |
| 287 | return rc; |
| 288 | } |
| 289 | |
| 290 | static void __exit cam_sensor_driver_exit(void) |
| 291 | { |
| 292 | platform_driver_unregister(&cam_sensor_platform_driver); |
| 293 | i2c_del_driver(&cam_sensor_driver_i2c); |
| 294 | } |
| 295 | |
| 296 | module_init(cam_sensor_driver_init); |
| 297 | module_exit(cam_sensor_driver_exit); |
| 298 | MODULE_DESCRIPTION("cam_sensor_driver"); |
| 299 | MODULE_LICENSE("GPL v2"); |