Sylwester Nawrocki | 5f3cc44 | 2010-10-07 10:06:16 -0300 | [diff] [blame] | 1 | /* |
Sylwester Nawrocki | 3a3f944 | 2011-04-28 09:06:19 -0300 | [diff] [blame] | 2 | * Samsung S5P/EXYNOS4 SoC series camera interface (camera capture) driver |
Sylwester Nawrocki | 5f3cc44 | 2010-10-07 10:06:16 -0300 | [diff] [blame] | 3 | * |
Sylwester Nawrocki | 3a3f944 | 2011-04-28 09:06:19 -0300 | [diff] [blame] | 4 | * Copyright (C) 2010 - 2011 Samsung Electronics Co., Ltd. |
Sylwester Nawrocki | 5f3cc44 | 2010-10-07 10:06:16 -0300 | [diff] [blame] | 5 | * Author: Sylwester Nawrocki, <s.nawrocki@samsung.com> |
| 6 | * |
| 7 | * This program is free software; you can redistribute it and/or modify |
| 8 | * it under the terms of the GNU General Public License version 2 as |
| 9 | * published by the Free Software Foundation. |
| 10 | */ |
| 11 | |
| 12 | #include <linux/module.h> |
| 13 | #include <linux/kernel.h> |
Sylwester Nawrocki | 5f3cc44 | 2010-10-07 10:06:16 -0300 | [diff] [blame] | 14 | #include <linux/types.h> |
| 15 | #include <linux/errno.h> |
| 16 | #include <linux/bug.h> |
| 17 | #include <linux/interrupt.h> |
| 18 | #include <linux/device.h> |
| 19 | #include <linux/platform_device.h> |
Sylwester Nawrocki | e9e2108 | 2011-09-02 06:25:32 -0300 | [diff] [blame] | 20 | #include <linux/pm_runtime.h> |
Sylwester Nawrocki | 5f3cc44 | 2010-10-07 10:06:16 -0300 | [diff] [blame] | 21 | #include <linux/list.h> |
| 22 | #include <linux/slab.h> |
| 23 | #include <linux/clk.h> |
| 24 | #include <linux/i2c.h> |
| 25 | |
| 26 | #include <linux/videodev2.h> |
| 27 | #include <media/v4l2-device.h> |
| 28 | #include <media/v4l2-ioctl.h> |
| 29 | #include <media/v4l2-mem2mem.h> |
Sylwester Nawrocki | 2dab38e | 2010-12-01 10:14:59 -0300 | [diff] [blame] | 30 | #include <media/videobuf2-core.h> |
| 31 | #include <media/videobuf2-dma-contig.h> |
Sylwester Nawrocki | 5f3cc44 | 2010-10-07 10:06:16 -0300 | [diff] [blame] | 32 | |
| 33 | #include "fimc-core.h" |
| 34 | |
| 35 | static struct v4l2_subdev *fimc_subdev_register(struct fimc_dev *fimc, |
Sylwester Nawrocki | df7e09a | 2010-12-27 14:42:15 -0300 | [diff] [blame] | 36 | struct s5p_fimc_isp_info *isp_info) |
Sylwester Nawrocki | 5f3cc44 | 2010-10-07 10:06:16 -0300 | [diff] [blame] | 37 | { |
| 38 | struct i2c_adapter *i2c_adap; |
| 39 | struct fimc_vid_cap *vid_cap = &fimc->vid_cap; |
| 40 | struct v4l2_subdev *sd = NULL; |
| 41 | |
| 42 | i2c_adap = i2c_get_adapter(isp_info->i2c_bus_num); |
| 43 | if (!i2c_adap) |
| 44 | return ERR_PTR(-ENOMEM); |
| 45 | |
| 46 | sd = v4l2_i2c_new_subdev_board(&vid_cap->v4l2_dev, i2c_adap, |
Laurent Pinchart | 9a1f8b3 | 2010-09-24 10:16:44 -0300 | [diff] [blame] | 47 | isp_info->board_info, NULL); |
Sylwester Nawrocki | 5f3cc44 | 2010-10-07 10:06:16 -0300 | [diff] [blame] | 48 | if (!sd) { |
| 49 | v4l2_err(&vid_cap->v4l2_dev, "failed to acquire subdev\n"); |
| 50 | return NULL; |
| 51 | } |
| 52 | |
| 53 | v4l2_info(&vid_cap->v4l2_dev, "subdevice %s registered successfuly\n", |
| 54 | isp_info->board_info->type); |
| 55 | |
| 56 | return sd; |
| 57 | } |
| 58 | |
| 59 | static void fimc_subdev_unregister(struct fimc_dev *fimc) |
| 60 | { |
| 61 | struct fimc_vid_cap *vid_cap = &fimc->vid_cap; |
| 62 | struct i2c_client *client; |
| 63 | |
| 64 | if (vid_cap->input_index < 0) |
| 65 | return; /* Subdevice already released or not registered. */ |
| 66 | |
| 67 | if (vid_cap->sd) { |
| 68 | v4l2_device_unregister_subdev(vid_cap->sd); |
| 69 | client = v4l2_get_subdevdata(vid_cap->sd); |
| 70 | i2c_unregister_device(client); |
| 71 | i2c_put_adapter(client->adapter); |
| 72 | vid_cap->sd = NULL; |
| 73 | } |
| 74 | |
| 75 | vid_cap->input_index = -1; |
| 76 | } |
| 77 | |
| 78 | /** |
| 79 | * fimc_subdev_attach - attach v4l2_subdev to camera host interface |
| 80 | * |
| 81 | * @fimc: FIMC device information |
| 82 | * @index: index to the array of available subdevices, |
| 83 | * -1 for full array search or non negative value |
| 84 | * to select specific subdevice |
| 85 | */ |
| 86 | static int fimc_subdev_attach(struct fimc_dev *fimc, int index) |
| 87 | { |
| 88 | struct fimc_vid_cap *vid_cap = &fimc->vid_cap; |
Sylwester Nawrocki | df7e09a | 2010-12-27 14:42:15 -0300 | [diff] [blame] | 89 | struct s5p_platform_fimc *pdata = fimc->pdata; |
| 90 | struct s5p_fimc_isp_info *isp_info; |
Sylwester Nawrocki | 5f3cc44 | 2010-10-07 10:06:16 -0300 | [diff] [blame] | 91 | struct v4l2_subdev *sd; |
| 92 | int i; |
| 93 | |
Sylwester Nawrocki | 117182d | 2011-02-28 11:12:19 -0300 | [diff] [blame] | 94 | for (i = 0; i < pdata->num_clients; ++i) { |
| 95 | isp_info = &pdata->isp_info[i]; |
Sylwester Nawrocki | 5f3cc44 | 2010-10-07 10:06:16 -0300 | [diff] [blame] | 96 | |
Sylwester Nawrocki | 117182d | 2011-02-28 11:12:19 -0300 | [diff] [blame] | 97 | if (index >= 0 && i != index) |
Sylwester Nawrocki | 5f3cc44 | 2010-10-07 10:06:16 -0300 | [diff] [blame] | 98 | continue; |
| 99 | |
| 100 | sd = fimc_subdev_register(fimc, isp_info); |
Sylwester Nawrocki | a0f8cae | 2011-02-11 12:33:06 -0300 | [diff] [blame] | 101 | if (!IS_ERR_OR_NULL(sd)) { |
Sylwester Nawrocki | 5f3cc44 | 2010-10-07 10:06:16 -0300 | [diff] [blame] | 102 | vid_cap->sd = sd; |
| 103 | vid_cap->input_index = i; |
| 104 | |
| 105 | return 0; |
| 106 | } |
| 107 | } |
| 108 | |
| 109 | vid_cap->input_index = -1; |
| 110 | vid_cap->sd = NULL; |
| 111 | v4l2_err(&vid_cap->v4l2_dev, "fimc%d: sensor attach failed\n", |
| 112 | fimc->id); |
| 113 | return -ENODEV; |
| 114 | } |
| 115 | |
Sylwester Nawrocki | a25be18 | 2010-12-27 15:34:43 -0300 | [diff] [blame] | 116 | static int fimc_isp_subdev_init(struct fimc_dev *fimc, unsigned int index) |
Sylwester Nawrocki | 5f3cc44 | 2010-10-07 10:06:16 -0300 | [diff] [blame] | 117 | { |
Sylwester Nawrocki | df7e09a | 2010-12-27 14:42:15 -0300 | [diff] [blame] | 118 | struct s5p_fimc_isp_info *isp_info; |
Sylwester Nawrocki | 117182d | 2011-02-28 11:12:19 -0300 | [diff] [blame] | 119 | struct s5p_platform_fimc *pdata = fimc->pdata; |
Sylwester Nawrocki | 5f3cc44 | 2010-10-07 10:06:16 -0300 | [diff] [blame] | 120 | int ret; |
| 121 | |
Sylwester Nawrocki | 117182d | 2011-02-28 11:12:19 -0300 | [diff] [blame] | 122 | if (index >= pdata->num_clients) |
Sylwester Nawrocki | a25be18 | 2010-12-27 15:34:43 -0300 | [diff] [blame] | 123 | return -EINVAL; |
| 124 | |
Sylwester Nawrocki | 117182d | 2011-02-28 11:12:19 -0300 | [diff] [blame] | 125 | isp_info = &pdata->isp_info[index]; |
Sylwester Nawrocki | a25be18 | 2010-12-27 15:34:43 -0300 | [diff] [blame] | 126 | |
| 127 | if (isp_info->clk_frequency) |
| 128 | clk_set_rate(fimc->clock[CLK_CAM], isp_info->clk_frequency); |
| 129 | |
| 130 | ret = clk_enable(fimc->clock[CLK_CAM]); |
| 131 | if (ret) |
| 132 | return ret; |
| 133 | |
Sylwester Nawrocki | 5f3cc44 | 2010-10-07 10:06:16 -0300 | [diff] [blame] | 134 | ret = fimc_subdev_attach(fimc, index); |
| 135 | if (ret) |
| 136 | return ret; |
| 137 | |
Sylwester Nawrocki | 5f3cc44 | 2010-10-07 10:06:16 -0300 | [diff] [blame] | 138 | ret = fimc_hw_set_camera_polarity(fimc, isp_info); |
Sylwester Nawrocki | a25be18 | 2010-12-27 15:34:43 -0300 | [diff] [blame] | 139 | if (ret) |
| 140 | return ret; |
Sylwester Nawrocki | 5f3cc44 | 2010-10-07 10:06:16 -0300 | [diff] [blame] | 141 | |
Sylwester Nawrocki | a25be18 | 2010-12-27 15:34:43 -0300 | [diff] [blame] | 142 | ret = v4l2_subdev_call(fimc->vid_cap.sd, core, s_power, 1); |
| 143 | if (!ret) |
| 144 | return ret; |
| 145 | |
| 146 | /* enabling power failed so unregister subdev */ |
Sylwester Nawrocki | 5f3cc44 | 2010-10-07 10:06:16 -0300 | [diff] [blame] | 147 | fimc_subdev_unregister(fimc); |
Sylwester Nawrocki | a25be18 | 2010-12-27 15:34:43 -0300 | [diff] [blame] | 148 | |
| 149 | v4l2_err(&fimc->vid_cap.v4l2_dev, "ISP initialization failed: %d\n", |
| 150 | ret); |
| 151 | |
Sylwester Nawrocki | 5f3cc44 | 2010-10-07 10:06:16 -0300 | [diff] [blame] | 152 | return ret; |
| 153 | } |
| 154 | |
Marek Szyprowski | bd323e2 | 2011-08-29 08:51:49 -0300 | [diff] [blame] | 155 | static void fimc_capture_state_cleanup(struct fimc_dev *fimc) |
Sylwester Nawrocki | 5f3cc44 | 2010-10-07 10:06:16 -0300 | [diff] [blame] | 156 | { |
Marek Szyprowski | bd323e2 | 2011-08-29 08:51:49 -0300 | [diff] [blame] | 157 | struct fimc_vid_cap *cap = &fimc->vid_cap; |
Sylwester Nawrocki | 2dab38e | 2010-12-01 10:14:59 -0300 | [diff] [blame] | 158 | struct fimc_vid_buffer *buf; |
Marek Szyprowski | bd323e2 | 2011-08-29 08:51:49 -0300 | [diff] [blame] | 159 | unsigned long flags; |
Sylwester Nawrocki | 5f3cc44 | 2010-10-07 10:06:16 -0300 | [diff] [blame] | 160 | |
| 161 | spin_lock_irqsave(&fimc->slock, flags); |
| 162 | fimc->state &= ~(1 << ST_CAPT_RUN | 1 << ST_CAPT_PEND | |
Sungchun Kang | 8ec737f | 2011-02-07 15:59:46 -0300 | [diff] [blame] | 163 | 1 << ST_CAPT_SHUT | 1 << ST_CAPT_STREAM); |
Sylwester Nawrocki | 5f3cc44 | 2010-10-07 10:06:16 -0300 | [diff] [blame] | 164 | |
| 165 | fimc->vid_cap.active_buf_cnt = 0; |
Sylwester Nawrocki | 2dab38e | 2010-12-01 10:14:59 -0300 | [diff] [blame] | 166 | |
| 167 | /* Release buffers that were enqueued in the driver by videobuf2. */ |
| 168 | while (!list_empty(&cap->pending_buf_q)) { |
| 169 | buf = pending_queue_pop(cap); |
| 170 | vb2_buffer_done(&buf->vb, VB2_BUF_STATE_ERROR); |
| 171 | } |
| 172 | |
| 173 | while (!list_empty(&cap->active_buf_q)) { |
| 174 | buf = active_queue_pop(cap); |
| 175 | vb2_buffer_done(&buf->vb, VB2_BUF_STATE_ERROR); |
| 176 | } |
| 177 | |
Sylwester Nawrocki | 5f3cc44 | 2010-10-07 10:06:16 -0300 | [diff] [blame] | 178 | spin_unlock_irqrestore(&fimc->slock, flags); |
Marek Szyprowski | bd323e2 | 2011-08-29 08:51:49 -0300 | [diff] [blame] | 179 | } |
Sylwester Nawrocki | 5f3cc44 | 2010-10-07 10:06:16 -0300 | [diff] [blame] | 180 | |
Marek Szyprowski | bd323e2 | 2011-08-29 08:51:49 -0300 | [diff] [blame] | 181 | static int fimc_stop_capture(struct fimc_dev *fimc) |
| 182 | { |
| 183 | struct fimc_vid_cap *cap = &fimc->vid_cap; |
| 184 | unsigned long flags; |
| 185 | |
| 186 | if (!fimc_capture_active(fimc)) |
| 187 | return 0; |
| 188 | |
| 189 | spin_lock_irqsave(&fimc->slock, flags); |
| 190 | set_bit(ST_CAPT_SHUT, &fimc->state); |
| 191 | fimc_deactivate_capture(fimc); |
| 192 | spin_unlock_irqrestore(&fimc->slock, flags); |
| 193 | |
| 194 | wait_event_timeout(fimc->irq_queue, |
| 195 | !test_bit(ST_CAPT_SHUT, &fimc->state), |
| 196 | FIMC_SHUTDOWN_TIMEOUT); |
| 197 | |
| 198 | v4l2_subdev_call(cap->sd, video, s_stream, 0); |
| 199 | |
| 200 | fimc_capture_state_cleanup(fimc); |
Sylwester Nawrocki | 5f3cc44 | 2010-10-07 10:06:16 -0300 | [diff] [blame] | 201 | dbg("state: 0x%lx", fimc->state); |
| 202 | return 0; |
| 203 | } |
| 204 | |
Marek Szyprowski | bd323e2 | 2011-08-29 08:51:49 -0300 | [diff] [blame] | 205 | |
| 206 | static int start_streaming(struct vb2_queue *q, unsigned int count) |
Sylwester Nawrocki | 2dab38e | 2010-12-01 10:14:59 -0300 | [diff] [blame] | 207 | { |
| 208 | struct fimc_ctx *ctx = q->drv_priv; |
| 209 | struct fimc_dev *fimc = ctx->fimc_dev; |
Sylwester Nawrocki | df7e09a | 2010-12-27 14:42:15 -0300 | [diff] [blame] | 210 | struct s5p_fimc_isp_info *isp_info; |
Marek Szyprowski | bd323e2 | 2011-08-29 08:51:49 -0300 | [diff] [blame] | 211 | int min_bufs; |
Sylwester Nawrocki | 2dab38e | 2010-12-01 10:14:59 -0300 | [diff] [blame] | 212 | int ret; |
| 213 | |
Sungchun Kang | 8ec737f | 2011-02-07 15:59:46 -0300 | [diff] [blame] | 214 | fimc_hw_reset(fimc); |
| 215 | |
Sylwester Nawrocki | 2dab38e | 2010-12-01 10:14:59 -0300 | [diff] [blame] | 216 | ret = v4l2_subdev_call(fimc->vid_cap.sd, video, s_stream, 1); |
| 217 | if (ret && ret != -ENOIOCTLCMD) |
Marek Szyprowski | bd323e2 | 2011-08-29 08:51:49 -0300 | [diff] [blame] | 218 | goto error; |
Sylwester Nawrocki | 2dab38e | 2010-12-01 10:14:59 -0300 | [diff] [blame] | 219 | |
| 220 | ret = fimc_prepare_config(ctx, ctx->state); |
| 221 | if (ret) |
Marek Szyprowski | bd323e2 | 2011-08-29 08:51:49 -0300 | [diff] [blame] | 222 | goto error; |
Sylwester Nawrocki | 2dab38e | 2010-12-01 10:14:59 -0300 | [diff] [blame] | 223 | |
Sylwester Nawrocki | 117182d | 2011-02-28 11:12:19 -0300 | [diff] [blame] | 224 | isp_info = &fimc->pdata->isp_info[fimc->vid_cap.input_index]; |
Sylwester Nawrocki | 2dab38e | 2010-12-01 10:14:59 -0300 | [diff] [blame] | 225 | fimc_hw_set_camera_type(fimc, isp_info); |
| 226 | fimc_hw_set_camera_source(fimc, isp_info); |
| 227 | fimc_hw_set_camera_offset(fimc, &ctx->s_frame); |
| 228 | |
| 229 | if (ctx->state & FIMC_PARAMS) { |
| 230 | ret = fimc_set_scaler_info(ctx); |
| 231 | if (ret) { |
| 232 | err("Scaler setup error"); |
Marek Szyprowski | bd323e2 | 2011-08-29 08:51:49 -0300 | [diff] [blame] | 233 | goto error; |
Sylwester Nawrocki | 2dab38e | 2010-12-01 10:14:59 -0300 | [diff] [blame] | 234 | } |
| 235 | fimc_hw_set_input_path(ctx); |
Hyunwoong Kim | b241c6d | 2010-12-28 11:27:13 -0300 | [diff] [blame] | 236 | fimc_hw_set_prescaler(ctx); |
Sylwester Nawrocki | 70f66ea | 2010-12-28 11:37:55 -0300 | [diff] [blame] | 237 | fimc_hw_set_mainscaler(ctx); |
Sylwester Nawrocki | 2dab38e | 2010-12-01 10:14:59 -0300 | [diff] [blame] | 238 | fimc_hw_set_target_format(ctx); |
| 239 | fimc_hw_set_rotation(ctx); |
| 240 | fimc_hw_set_effect(ctx); |
| 241 | } |
| 242 | |
| 243 | fimc_hw_set_output_path(ctx); |
| 244 | fimc_hw_set_out_dma(ctx); |
| 245 | |
| 246 | INIT_LIST_HEAD(&fimc->vid_cap.pending_buf_q); |
| 247 | INIT_LIST_HEAD(&fimc->vid_cap.active_buf_q); |
Sylwester Nawrocki | 2dab38e | 2010-12-01 10:14:59 -0300 | [diff] [blame] | 248 | fimc->vid_cap.frame_count = 0; |
Sungchun Kang | 8ec737f | 2011-02-07 15:59:46 -0300 | [diff] [blame] | 249 | fimc->vid_cap.buf_index = 0; |
Sylwester Nawrocki | 2dab38e | 2010-12-01 10:14:59 -0300 | [diff] [blame] | 250 | |
| 251 | set_bit(ST_CAPT_PEND, &fimc->state); |
| 252 | |
Marek Szyprowski | bd323e2 | 2011-08-29 08:51:49 -0300 | [diff] [blame] | 253 | min_bufs = fimc->vid_cap.reqbufs_count > 1 ? 2 : 1; |
| 254 | |
| 255 | if (fimc->vid_cap.active_buf_cnt >= min_bufs) |
| 256 | fimc_activate_capture(ctx); |
| 257 | |
Sylwester Nawrocki | 2dab38e | 2010-12-01 10:14:59 -0300 | [diff] [blame] | 258 | return 0; |
Marek Szyprowski | bd323e2 | 2011-08-29 08:51:49 -0300 | [diff] [blame] | 259 | error: |
| 260 | fimc_capture_state_cleanup(fimc); |
| 261 | return ret; |
Sylwester Nawrocki | 2dab38e | 2010-12-01 10:14:59 -0300 | [diff] [blame] | 262 | } |
| 263 | |
| 264 | static int stop_streaming(struct vb2_queue *q) |
| 265 | { |
| 266 | struct fimc_ctx *ctx = q->drv_priv; |
| 267 | struct fimc_dev *fimc = ctx->fimc_dev; |
Sylwester Nawrocki | 2dab38e | 2010-12-01 10:14:59 -0300 | [diff] [blame] | 268 | |
Sylwester Nawrocki | 4ecbf5d | 2011-02-23 08:24:33 -0300 | [diff] [blame] | 269 | if (!fimc_capture_active(fimc)) |
Sylwester Nawrocki | 2dab38e | 2010-12-01 10:14:59 -0300 | [diff] [blame] | 270 | return -EINVAL; |
Sylwester Nawrocki | 2dab38e | 2010-12-01 10:14:59 -0300 | [diff] [blame] | 271 | |
| 272 | return fimc_stop_capture(fimc); |
| 273 | } |
| 274 | |
Sylwester Nawrocki | e9e2108 | 2011-09-02 06:25:32 -0300 | [diff] [blame] | 275 | int fimc_capture_suspend(struct fimc_dev *fimc) |
| 276 | { |
| 277 | return -EBUSY; |
| 278 | } |
| 279 | |
| 280 | int fimc_capture_resume(struct fimc_dev *fimc) |
| 281 | { |
| 282 | return 0; |
| 283 | } |
| 284 | |
Sylwester Nawrocki | ef7af59 | 2010-12-08 14:05:08 -0300 | [diff] [blame] | 285 | static unsigned int get_plane_size(struct fimc_frame *fr, unsigned int plane) |
Sylwester Nawrocki | 2dab38e | 2010-12-01 10:14:59 -0300 | [diff] [blame] | 286 | { |
Sylwester Nawrocki | ef7af59 | 2010-12-08 14:05:08 -0300 | [diff] [blame] | 287 | if (!fr || plane >= fr->fmt->memplanes) |
Sylwester Nawrocki | 2dab38e | 2010-12-01 10:14:59 -0300 | [diff] [blame] | 288 | return 0; |
Sylwester Nawrocki | ef7af59 | 2010-12-08 14:05:08 -0300 | [diff] [blame] | 289 | return fr->f_width * fr->f_height * fr->fmt->depth[plane] / 8; |
Sylwester Nawrocki | 2dab38e | 2010-12-01 10:14:59 -0300 | [diff] [blame] | 290 | } |
| 291 | |
| 292 | static int queue_setup(struct vb2_queue *vq, unsigned int *num_buffers, |
Marek Szyprowski | 035aa14 | 2011-08-24 06:43:36 -0300 | [diff] [blame] | 293 | unsigned int *num_planes, unsigned int sizes[], |
Sylwester Nawrocki | 2dab38e | 2010-12-01 10:14:59 -0300 | [diff] [blame] | 294 | void *allocators[]) |
| 295 | { |
| 296 | struct fimc_ctx *ctx = vq->drv_priv; |
Sylwester Nawrocki | ef7af59 | 2010-12-08 14:05:08 -0300 | [diff] [blame] | 297 | struct fimc_fmt *fmt = ctx->d_frame.fmt; |
| 298 | int i; |
Sylwester Nawrocki | 2dab38e | 2010-12-01 10:14:59 -0300 | [diff] [blame] | 299 | |
| 300 | if (!fmt) |
| 301 | return -EINVAL; |
| 302 | |
Sylwester Nawrocki | ef7af59 | 2010-12-08 14:05:08 -0300 | [diff] [blame] | 303 | *num_planes = fmt->memplanes; |
Sylwester Nawrocki | 2dab38e | 2010-12-01 10:14:59 -0300 | [diff] [blame] | 304 | |
Sylwester Nawrocki | ef7af59 | 2010-12-08 14:05:08 -0300 | [diff] [blame] | 305 | for (i = 0; i < fmt->memplanes; i++) { |
| 306 | sizes[i] = get_plane_size(&ctx->d_frame, i); |
Sylwester Nawrocki | ef7af59 | 2010-12-08 14:05:08 -0300 | [diff] [blame] | 307 | allocators[i] = ctx->fimc_dev->alloc_ctx; |
| 308 | } |
Sylwester Nawrocki | 2dab38e | 2010-12-01 10:14:59 -0300 | [diff] [blame] | 309 | |
Sylwester Nawrocki | ef7af59 | 2010-12-08 14:05:08 -0300 | [diff] [blame] | 310 | return 0; |
Sylwester Nawrocki | 2dab38e | 2010-12-01 10:14:59 -0300 | [diff] [blame] | 311 | } |
| 312 | |
Sylwester Nawrocki | 2dab38e | 2010-12-01 10:14:59 -0300 | [diff] [blame] | 313 | static int buffer_prepare(struct vb2_buffer *vb) |
| 314 | { |
| 315 | struct vb2_queue *vq = vb->vb2_queue; |
| 316 | struct fimc_ctx *ctx = vq->drv_priv; |
| 317 | struct v4l2_device *v4l2_dev = &ctx->fimc_dev->m2m.v4l2_dev; |
Sylwester Nawrocki | 2dab38e | 2010-12-01 10:14:59 -0300 | [diff] [blame] | 318 | int i; |
| 319 | |
Sylwester Nawrocki | ef7af59 | 2010-12-08 14:05:08 -0300 | [diff] [blame] | 320 | if (!ctx->d_frame.fmt || vq->type != V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE) |
| 321 | return -EINVAL; |
Sylwester Nawrocki | 2dab38e | 2010-12-01 10:14:59 -0300 | [diff] [blame] | 322 | |
Sylwester Nawrocki | ef7af59 | 2010-12-08 14:05:08 -0300 | [diff] [blame] | 323 | for (i = 0; i < ctx->d_frame.fmt->memplanes; i++) { |
| 324 | unsigned long size = get_plane_size(&ctx->d_frame, i); |
Sylwester Nawrocki | 2dab38e | 2010-12-01 10:14:59 -0300 | [diff] [blame] | 325 | |
| 326 | if (vb2_plane_size(vb, i) < size) { |
| 327 | v4l2_err(v4l2_dev, "User buffer too small (%ld < %ld)\n", |
| 328 | vb2_plane_size(vb, i), size); |
| 329 | return -EINVAL; |
| 330 | } |
| 331 | |
| 332 | vb2_set_plane_payload(vb, i, size); |
| 333 | } |
| 334 | |
| 335 | return 0; |
| 336 | } |
| 337 | |
| 338 | static void buffer_queue(struct vb2_buffer *vb) |
| 339 | { |
| 340 | struct fimc_ctx *ctx = vb2_get_drv_priv(vb->vb2_queue); |
| 341 | struct fimc_dev *fimc = ctx->fimc_dev; |
| 342 | struct fimc_vid_buffer *buf |
| 343 | = container_of(vb, struct fimc_vid_buffer, vb); |
| 344 | struct fimc_vid_cap *vid_cap = &fimc->vid_cap; |
| 345 | unsigned long flags; |
Sungchun Kang | 8ec737f | 2011-02-07 15:59:46 -0300 | [diff] [blame] | 346 | int min_bufs; |
Sylwester Nawrocki | 2dab38e | 2010-12-01 10:14:59 -0300 | [diff] [blame] | 347 | |
| 348 | spin_lock_irqsave(&fimc->slock, flags); |
Sungchun Kang | 8ec737f | 2011-02-07 15:59:46 -0300 | [diff] [blame] | 349 | fimc_prepare_addr(ctx, &buf->vb, &ctx->d_frame, &buf->paddr); |
Sylwester Nawrocki | 2dab38e | 2010-12-01 10:14:59 -0300 | [diff] [blame] | 350 | |
Sungchun Kang | 8ec737f | 2011-02-07 15:59:46 -0300 | [diff] [blame] | 351 | if (!test_bit(ST_CAPT_STREAM, &fimc->state) |
| 352 | && vid_cap->active_buf_cnt < FIMC_MAX_OUT_BUFS) { |
| 353 | /* Setup the buffer directly for processing. */ |
| 354 | int buf_id = (vid_cap->reqbufs_count == 1) ? -1 : |
| 355 | vid_cap->buf_index; |
Sylwester Nawrocki | 2dab38e | 2010-12-01 10:14:59 -0300 | [diff] [blame] | 356 | |
Sungchun Kang | 8ec737f | 2011-02-07 15:59:46 -0300 | [diff] [blame] | 357 | fimc_hw_set_output_addr(fimc, &buf->paddr, buf_id); |
| 358 | buf->index = vid_cap->buf_index; |
| 359 | active_queue_add(vid_cap, buf); |
| 360 | |
| 361 | if (++vid_cap->buf_index >= FIMC_MAX_OUT_BUFS) |
| 362 | vid_cap->buf_index = 0; |
| 363 | } else { |
| 364 | fimc_pending_queue_add(vid_cap, buf); |
Sylwester Nawrocki | 2dab38e | 2010-12-01 10:14:59 -0300 | [diff] [blame] | 365 | } |
Sungchun Kang | 8ec737f | 2011-02-07 15:59:46 -0300 | [diff] [blame] | 366 | |
| 367 | min_bufs = vid_cap->reqbufs_count > 1 ? 2 : 1; |
| 368 | |
Marek Szyprowski | bd323e2 | 2011-08-29 08:51:49 -0300 | [diff] [blame] | 369 | if (vb2_is_streaming(&vid_cap->vbq) && |
| 370 | vid_cap->active_buf_cnt >= min_bufs && |
Sungchun Kang | 8ec737f | 2011-02-07 15:59:46 -0300 | [diff] [blame] | 371 | !test_and_set_bit(ST_CAPT_STREAM, &fimc->state)) |
| 372 | fimc_activate_capture(ctx); |
| 373 | |
Sylwester Nawrocki | 2dab38e | 2010-12-01 10:14:59 -0300 | [diff] [blame] | 374 | spin_unlock_irqrestore(&fimc->slock, flags); |
| 375 | } |
| 376 | |
| 377 | static void fimc_lock(struct vb2_queue *vq) |
| 378 | { |
| 379 | struct fimc_ctx *ctx = vb2_get_drv_priv(vq); |
| 380 | mutex_lock(&ctx->fimc_dev->lock); |
| 381 | } |
| 382 | |
| 383 | static void fimc_unlock(struct vb2_queue *vq) |
| 384 | { |
| 385 | struct fimc_ctx *ctx = vb2_get_drv_priv(vq); |
| 386 | mutex_unlock(&ctx->fimc_dev->lock); |
| 387 | } |
| 388 | |
| 389 | static struct vb2_ops fimc_capture_qops = { |
| 390 | .queue_setup = queue_setup, |
| 391 | .buf_prepare = buffer_prepare, |
| 392 | .buf_queue = buffer_queue, |
Sylwester Nawrocki | 2dab38e | 2010-12-01 10:14:59 -0300 | [diff] [blame] | 393 | .wait_prepare = fimc_unlock, |
| 394 | .wait_finish = fimc_lock, |
| 395 | .start_streaming = start_streaming, |
| 396 | .stop_streaming = stop_streaming, |
| 397 | }; |
| 398 | |
Sylwester Nawrocki | 5f3cc44 | 2010-10-07 10:06:16 -0300 | [diff] [blame] | 399 | static int fimc_capture_open(struct file *file) |
| 400 | { |
| 401 | struct fimc_dev *fimc = video_drvdata(file); |
| 402 | int ret = 0; |
| 403 | |
| 404 | dbg("pid: %d, state: 0x%lx", task_pid_nr(current), fimc->state); |
| 405 | |
| 406 | /* Return if the corresponding video mem2mem node is already opened. */ |
| 407 | if (fimc_m2m_active(fimc)) |
| 408 | return -EBUSY; |
| 409 | |
Sylwester Nawrocki | e9e2108 | 2011-09-02 06:25:32 -0300 | [diff] [blame] | 410 | ret = pm_runtime_get_sync(&fimc->pdev->dev); |
| 411 | if (ret) |
| 412 | return ret; |
| 413 | |
Sylwester Nawrocki | 5f3cc44 | 2010-10-07 10:06:16 -0300 | [diff] [blame] | 414 | if (++fimc->vid_cap.refcnt == 1) { |
Sylwester Nawrocki | a25be18 | 2010-12-27 15:34:43 -0300 | [diff] [blame] | 415 | ret = fimc_isp_subdev_init(fimc, 0); |
Sylwester Nawrocki | 5f3cc44 | 2010-10-07 10:06:16 -0300 | [diff] [blame] | 416 | if (ret) { |
Sylwester Nawrocki | e9e2108 | 2011-09-02 06:25:32 -0300 | [diff] [blame] | 417 | pm_runtime_put_sync(&fimc->pdev->dev); |
Sylwester Nawrocki | 5f3cc44 | 2010-10-07 10:06:16 -0300 | [diff] [blame] | 418 | fimc->vid_cap.refcnt--; |
Sylwester Nawrocki | 8293ebf | 2010-12-01 10:25:18 -0300 | [diff] [blame] | 419 | return -EIO; |
Sylwester Nawrocki | 5f3cc44 | 2010-10-07 10:06:16 -0300 | [diff] [blame] | 420 | } |
| 421 | } |
| 422 | |
| 423 | file->private_data = fimc->vid_cap.ctx; |
| 424 | |
Sylwester Nawrocki | 8293ebf | 2010-12-01 10:25:18 -0300 | [diff] [blame] | 425 | return 0; |
Sylwester Nawrocki | 5f3cc44 | 2010-10-07 10:06:16 -0300 | [diff] [blame] | 426 | } |
| 427 | |
| 428 | static int fimc_capture_close(struct file *file) |
| 429 | { |
| 430 | struct fimc_dev *fimc = video_drvdata(file); |
| 431 | |
Sylwester Nawrocki | 5f3cc44 | 2010-10-07 10:06:16 -0300 | [diff] [blame] | 432 | dbg("pid: %d, state: 0x%lx", task_pid_nr(current), fimc->state); |
| 433 | |
| 434 | if (--fimc->vid_cap.refcnt == 0) { |
| 435 | fimc_stop_capture(fimc); |
Sylwester Nawrocki | 2dab38e | 2010-12-01 10:14:59 -0300 | [diff] [blame] | 436 | vb2_queue_release(&fimc->vid_cap.vbq); |
Sylwester Nawrocki | 5f3cc44 | 2010-10-07 10:06:16 -0300 | [diff] [blame] | 437 | |
| 438 | v4l2_err(&fimc->vid_cap.v4l2_dev, "releasing ISP\n"); |
Sylwester Nawrocki | 2dab38e | 2010-12-01 10:14:59 -0300 | [diff] [blame] | 439 | |
Sylwester Nawrocki | 5f3cc44 | 2010-10-07 10:06:16 -0300 | [diff] [blame] | 440 | v4l2_subdev_call(fimc->vid_cap.sd, core, s_power, 0); |
Sylwester Nawrocki | a25be18 | 2010-12-27 15:34:43 -0300 | [diff] [blame] | 441 | clk_disable(fimc->clock[CLK_CAM]); |
Sylwester Nawrocki | 5f3cc44 | 2010-10-07 10:06:16 -0300 | [diff] [blame] | 442 | fimc_subdev_unregister(fimc); |
| 443 | } |
| 444 | |
Sylwester Nawrocki | e9e2108 | 2011-09-02 06:25:32 -0300 | [diff] [blame] | 445 | pm_runtime_put(&fimc->pdev->dev); |
| 446 | |
Sylwester Nawrocki | 5f3cc44 | 2010-10-07 10:06:16 -0300 | [diff] [blame] | 447 | return 0; |
| 448 | } |
| 449 | |
| 450 | static unsigned int fimc_capture_poll(struct file *file, |
| 451 | struct poll_table_struct *wait) |
| 452 | { |
| 453 | struct fimc_ctx *ctx = file->private_data; |
| 454 | struct fimc_dev *fimc = ctx->fimc_dev; |
Sylwester Nawrocki | 5f3cc44 | 2010-10-07 10:06:16 -0300 | [diff] [blame] | 455 | |
Sylwester Nawrocki | 8293ebf | 2010-12-01 10:25:18 -0300 | [diff] [blame] | 456 | return vb2_poll(&fimc->vid_cap.vbq, file, wait); |
Sylwester Nawrocki | 5f3cc44 | 2010-10-07 10:06:16 -0300 | [diff] [blame] | 457 | } |
| 458 | |
| 459 | static int fimc_capture_mmap(struct file *file, struct vm_area_struct *vma) |
| 460 | { |
| 461 | struct fimc_ctx *ctx = file->private_data; |
| 462 | struct fimc_dev *fimc = ctx->fimc_dev; |
Sylwester Nawrocki | 5f3cc44 | 2010-10-07 10:06:16 -0300 | [diff] [blame] | 463 | |
Sylwester Nawrocki | 8293ebf | 2010-12-01 10:25:18 -0300 | [diff] [blame] | 464 | return vb2_mmap(&fimc->vid_cap.vbq, vma); |
Sylwester Nawrocki | 5f3cc44 | 2010-10-07 10:06:16 -0300 | [diff] [blame] | 465 | } |
| 466 | |
| 467 | /* video device file operations */ |
| 468 | static const struct v4l2_file_operations fimc_capture_fops = { |
| 469 | .owner = THIS_MODULE, |
| 470 | .open = fimc_capture_open, |
| 471 | .release = fimc_capture_close, |
| 472 | .poll = fimc_capture_poll, |
| 473 | .unlocked_ioctl = video_ioctl2, |
| 474 | .mmap = fimc_capture_mmap, |
| 475 | }; |
| 476 | |
| 477 | static int fimc_vidioc_querycap_capture(struct file *file, void *priv, |
| 478 | struct v4l2_capability *cap) |
| 479 | { |
| 480 | struct fimc_ctx *ctx = file->private_data; |
| 481 | struct fimc_dev *fimc = ctx->fimc_dev; |
| 482 | |
| 483 | strncpy(cap->driver, fimc->pdev->name, sizeof(cap->driver) - 1); |
| 484 | strncpy(cap->card, fimc->pdev->name, sizeof(cap->card) - 1); |
| 485 | cap->bus_info[0] = 0; |
Sylwester Nawrocki | ef7af59 | 2010-12-08 14:05:08 -0300 | [diff] [blame] | 486 | cap->capabilities = V4L2_CAP_STREAMING | V4L2_CAP_VIDEO_CAPTURE | |
| 487 | V4L2_CAP_VIDEO_CAPTURE_MPLANE; |
Sylwester Nawrocki | 5f3cc44 | 2010-10-07 10:06:16 -0300 | [diff] [blame] | 488 | |
| 489 | return 0; |
| 490 | } |
| 491 | |
| 492 | /* Synchronize formats of the camera interface input and attached sensor. */ |
| 493 | static int sync_capture_fmt(struct fimc_ctx *ctx) |
| 494 | { |
| 495 | struct fimc_frame *frame = &ctx->s_frame; |
| 496 | struct fimc_dev *fimc = ctx->fimc_dev; |
| 497 | struct v4l2_mbus_framefmt *fmt = &fimc->vid_cap.fmt; |
| 498 | int ret; |
| 499 | |
| 500 | fmt->width = ctx->d_frame.o_width; |
| 501 | fmt->height = ctx->d_frame.o_height; |
| 502 | |
| 503 | ret = v4l2_subdev_call(fimc->vid_cap.sd, video, s_mbus_fmt, fmt); |
| 504 | if (ret == -ENOIOCTLCMD) { |
| 505 | err("s_mbus_fmt failed"); |
| 506 | return ret; |
| 507 | } |
| 508 | dbg("w: %d, h: %d, code= %d", fmt->width, fmt->height, fmt->code); |
| 509 | |
| 510 | frame->fmt = find_mbus_format(fmt, FMT_FLAGS_CAM); |
| 511 | if (!frame->fmt) { |
| 512 | err("fimc source format not found\n"); |
| 513 | return -EINVAL; |
| 514 | } |
| 515 | |
| 516 | frame->f_width = fmt->width; |
| 517 | frame->f_height = fmt->height; |
| 518 | frame->width = fmt->width; |
| 519 | frame->height = fmt->height; |
| 520 | frame->o_width = fmt->width; |
| 521 | frame->o_height = fmt->height; |
| 522 | frame->offs_h = 0; |
| 523 | frame->offs_v = 0; |
| 524 | |
| 525 | return 0; |
| 526 | } |
| 527 | |
Sylwester Nawrocki | ef7af59 | 2010-12-08 14:05:08 -0300 | [diff] [blame] | 528 | static int fimc_cap_s_fmt_mplane(struct file *file, void *priv, |
| 529 | struct v4l2_format *f) |
Sylwester Nawrocki | 5f3cc44 | 2010-10-07 10:06:16 -0300 | [diff] [blame] | 530 | { |
| 531 | struct fimc_ctx *ctx = priv; |
| 532 | struct fimc_dev *fimc = ctx->fimc_dev; |
| 533 | struct fimc_frame *frame; |
Sylwester Nawrocki | ef7af59 | 2010-12-08 14:05:08 -0300 | [diff] [blame] | 534 | struct v4l2_pix_format_mplane *pix; |
Sylwester Nawrocki | 5f3cc44 | 2010-10-07 10:06:16 -0300 | [diff] [blame] | 535 | int ret; |
Sylwester Nawrocki | ef7af59 | 2010-12-08 14:05:08 -0300 | [diff] [blame] | 536 | int i; |
Sylwester Nawrocki | 5f3cc44 | 2010-10-07 10:06:16 -0300 | [diff] [blame] | 537 | |
Sylwester Nawrocki | ef7af59 | 2010-12-08 14:05:08 -0300 | [diff] [blame] | 538 | if (f->type != V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE) |
Sylwester Nawrocki | 5f3cc44 | 2010-10-07 10:06:16 -0300 | [diff] [blame] | 539 | return -EINVAL; |
| 540 | |
Sylwester Nawrocki | ef7af59 | 2010-12-08 14:05:08 -0300 | [diff] [blame] | 541 | ret = fimc_vidioc_try_fmt_mplane(file, priv, f); |
Sylwester Nawrocki | 5f3cc44 | 2010-10-07 10:06:16 -0300 | [diff] [blame] | 542 | if (ret) |
| 543 | return ret; |
| 544 | |
Sylwester Nawrocki | c4a6273 | 2011-03-15 14:50:52 -0300 | [diff] [blame] | 545 | if (vb2_is_busy(&fimc->vid_cap.vbq) || fimc_capture_active(fimc)) |
Sylwester Nawrocki | ef7af59 | 2010-12-08 14:05:08 -0300 | [diff] [blame] | 546 | return -EBUSY; |
Sylwester Nawrocki | 5f3cc44 | 2010-10-07 10:06:16 -0300 | [diff] [blame] | 547 | |
| 548 | frame = &ctx->d_frame; |
| 549 | |
Sylwester Nawrocki | ef7af59 | 2010-12-08 14:05:08 -0300 | [diff] [blame] | 550 | pix = &f->fmt.pix_mp; |
Sylwester Nawrocki | 5f3cc44 | 2010-10-07 10:06:16 -0300 | [diff] [blame] | 551 | frame->fmt = find_format(f, FMT_FLAGS_M2M | FMT_FLAGS_CAM); |
| 552 | if (!frame->fmt) { |
| 553 | err("fimc target format not found\n"); |
Sylwester Nawrocki | 8293ebf | 2010-12-01 10:25:18 -0300 | [diff] [blame] | 554 | return -EINVAL; |
Sylwester Nawrocki | 5f3cc44 | 2010-10-07 10:06:16 -0300 | [diff] [blame] | 555 | } |
| 556 | |
Sylwester Nawrocki | 045030f | 2011-04-08 09:11:43 -0300 | [diff] [blame] | 557 | for (i = 0; i < frame->fmt->colplanes; i++) { |
| 558 | frame->payload[i] = |
| 559 | (pix->width * pix->height * frame->fmt->depth[i]) >> 3; |
| 560 | } |
Sylwester Nawrocki | ef7af59 | 2010-12-08 14:05:08 -0300 | [diff] [blame] | 561 | |
Sylwester Nawrocki | 5f3cc44 | 2010-10-07 10:06:16 -0300 | [diff] [blame] | 562 | /* Output DMA frame pixel size and offsets. */ |
Sylwester Nawrocki | ef7af59 | 2010-12-08 14:05:08 -0300 | [diff] [blame] | 563 | frame->f_width = pix->plane_fmt[0].bytesperline * 8 |
| 564 | / frame->fmt->depth[0]; |
Sylwester Nawrocki | 5f3cc44 | 2010-10-07 10:06:16 -0300 | [diff] [blame] | 565 | frame->f_height = pix->height; |
| 566 | frame->width = pix->width; |
| 567 | frame->height = pix->height; |
| 568 | frame->o_width = pix->width; |
| 569 | frame->o_height = pix->height; |
Sylwester Nawrocki | 5f3cc44 | 2010-10-07 10:06:16 -0300 | [diff] [blame] | 570 | frame->offs_h = 0; |
| 571 | frame->offs_v = 0; |
| 572 | |
Sylwester Nawrocki | 5f3cc44 | 2010-10-07 10:06:16 -0300 | [diff] [blame] | 573 | ctx->state |= (FIMC_PARAMS | FIMC_DST_FMT); |
| 574 | |
Sylwester Nawrocki | 8293ebf | 2010-12-01 10:25:18 -0300 | [diff] [blame] | 575 | ret = sync_capture_fmt(ctx); |
Sylwester Nawrocki | 5f3cc44 | 2010-10-07 10:06:16 -0300 | [diff] [blame] | 576 | return ret; |
| 577 | } |
| 578 | |
| 579 | static int fimc_cap_enum_input(struct file *file, void *priv, |
| 580 | struct v4l2_input *i) |
| 581 | { |
| 582 | struct fimc_ctx *ctx = priv; |
Sylwester Nawrocki | df7e09a | 2010-12-27 14:42:15 -0300 | [diff] [blame] | 583 | struct s5p_platform_fimc *pldata = ctx->fimc_dev->pdata; |
| 584 | struct s5p_fimc_isp_info *isp_info; |
Sylwester Nawrocki | 5f3cc44 | 2010-10-07 10:06:16 -0300 | [diff] [blame] | 585 | |
Sylwester Nawrocki | 117182d | 2011-02-28 11:12:19 -0300 | [diff] [blame] | 586 | if (i->index >= pldata->num_clients) |
Sylwester Nawrocki | 5f3cc44 | 2010-10-07 10:06:16 -0300 | [diff] [blame] | 587 | return -EINVAL; |
| 588 | |
Sylwester Nawrocki | 117182d | 2011-02-28 11:12:19 -0300 | [diff] [blame] | 589 | isp_info = &pldata->isp_info[i->index]; |
Sylwester Nawrocki | 5f3cc44 | 2010-10-07 10:06:16 -0300 | [diff] [blame] | 590 | |
| 591 | i->type = V4L2_INPUT_TYPE_CAMERA; |
| 592 | strncpy(i->name, isp_info->board_info->type, 32); |
| 593 | return 0; |
| 594 | } |
| 595 | |
| 596 | static int fimc_cap_s_input(struct file *file, void *priv, |
| 597 | unsigned int i) |
| 598 | { |
| 599 | struct fimc_ctx *ctx = priv; |
| 600 | struct fimc_dev *fimc = ctx->fimc_dev; |
Sylwester Nawrocki | df7e09a | 2010-12-27 14:42:15 -0300 | [diff] [blame] | 601 | struct s5p_platform_fimc *pdata = fimc->pdata; |
Sylwester Nawrocki | 5f3cc44 | 2010-10-07 10:06:16 -0300 | [diff] [blame] | 602 | |
| 603 | if (fimc_capture_active(ctx->fimc_dev)) |
| 604 | return -EBUSY; |
| 605 | |
Sylwester Nawrocki | 117182d | 2011-02-28 11:12:19 -0300 | [diff] [blame] | 606 | if (i >= pdata->num_clients) |
Sylwester Nawrocki | 8293ebf | 2010-12-01 10:25:18 -0300 | [diff] [blame] | 607 | return -EINVAL; |
Sylwester Nawrocki | 5f3cc44 | 2010-10-07 10:06:16 -0300 | [diff] [blame] | 608 | |
Sylwester Nawrocki | 5f3cc44 | 2010-10-07 10:06:16 -0300 | [diff] [blame] | 609 | |
| 610 | if (fimc->vid_cap.sd) { |
Sylwester Nawrocki | 8293ebf | 2010-12-01 10:25:18 -0300 | [diff] [blame] | 611 | int ret = v4l2_subdev_call(fimc->vid_cap.sd, core, s_power, 0); |
Sylwester Nawrocki | 5f3cc44 | 2010-10-07 10:06:16 -0300 | [diff] [blame] | 612 | if (ret) |
| 613 | err("s_power failed: %d", ret); |
Sylwester Nawrocki | a25be18 | 2010-12-27 15:34:43 -0300 | [diff] [blame] | 614 | |
| 615 | clk_disable(fimc->clock[CLK_CAM]); |
Sylwester Nawrocki | 5f3cc44 | 2010-10-07 10:06:16 -0300 | [diff] [blame] | 616 | } |
| 617 | |
| 618 | /* Release the attached sensor subdevice. */ |
| 619 | fimc_subdev_unregister(fimc); |
| 620 | |
Sylwester Nawrocki | 8293ebf | 2010-12-01 10:25:18 -0300 | [diff] [blame] | 621 | return fimc_isp_subdev_init(fimc, i); |
Sylwester Nawrocki | 5f3cc44 | 2010-10-07 10:06:16 -0300 | [diff] [blame] | 622 | } |
| 623 | |
| 624 | static int fimc_cap_g_input(struct file *file, void *priv, |
| 625 | unsigned int *i) |
| 626 | { |
| 627 | struct fimc_ctx *ctx = priv; |
| 628 | struct fimc_vid_cap *cap = &ctx->fimc_dev->vid_cap; |
| 629 | |
| 630 | *i = cap->input_index; |
| 631 | return 0; |
| 632 | } |
| 633 | |
| 634 | static int fimc_cap_streamon(struct file *file, void *priv, |
Sylwester Nawrocki | 2dab38e | 2010-12-01 10:14:59 -0300 | [diff] [blame] | 635 | enum v4l2_buf_type type) |
Sylwester Nawrocki | 5f3cc44 | 2010-10-07 10:06:16 -0300 | [diff] [blame] | 636 | { |
Sylwester Nawrocki | 5f3cc44 | 2010-10-07 10:06:16 -0300 | [diff] [blame] | 637 | struct fimc_ctx *ctx = priv; |
| 638 | struct fimc_dev *fimc = ctx->fimc_dev; |
Sylwester Nawrocki | 5f3cc44 | 2010-10-07 10:06:16 -0300 | [diff] [blame] | 639 | |
| 640 | if (fimc_capture_active(fimc) || !fimc->vid_cap.sd) |
Sylwester Nawrocki | 8293ebf | 2010-12-01 10:25:18 -0300 | [diff] [blame] | 641 | return -EBUSY; |
Sylwester Nawrocki | 5f3cc44 | 2010-10-07 10:06:16 -0300 | [diff] [blame] | 642 | |
| 643 | if (!(ctx->state & FIMC_DST_FMT)) { |
| 644 | v4l2_err(&fimc->vid_cap.v4l2_dev, "Format is not set\n"); |
Sylwester Nawrocki | 8293ebf | 2010-12-01 10:25:18 -0300 | [diff] [blame] | 645 | return -EINVAL; |
Sylwester Nawrocki | 5f3cc44 | 2010-10-07 10:06:16 -0300 | [diff] [blame] | 646 | } |
| 647 | |
Sylwester Nawrocki | 8293ebf | 2010-12-01 10:25:18 -0300 | [diff] [blame] | 648 | return vb2_streamon(&fimc->vid_cap.vbq, type); |
Sylwester Nawrocki | 5f3cc44 | 2010-10-07 10:06:16 -0300 | [diff] [blame] | 649 | } |
| 650 | |
| 651 | static int fimc_cap_streamoff(struct file *file, void *priv, |
Sylwester Nawrocki | 8293ebf | 2010-12-01 10:25:18 -0300 | [diff] [blame] | 652 | enum v4l2_buf_type type) |
Sylwester Nawrocki | 5f3cc44 | 2010-10-07 10:06:16 -0300 | [diff] [blame] | 653 | { |
| 654 | struct fimc_ctx *ctx = priv; |
| 655 | struct fimc_dev *fimc = ctx->fimc_dev; |
Sylwester Nawrocki | 5f3cc44 | 2010-10-07 10:06:16 -0300 | [diff] [blame] | 656 | |
Sylwester Nawrocki | 8293ebf | 2010-12-01 10:25:18 -0300 | [diff] [blame] | 657 | return vb2_streamoff(&fimc->vid_cap.vbq, type); |
Sylwester Nawrocki | 5f3cc44 | 2010-10-07 10:06:16 -0300 | [diff] [blame] | 658 | } |
| 659 | |
| 660 | static int fimc_cap_reqbufs(struct file *file, void *priv, |
Sylwester Nawrocki | ef7af59 | 2010-12-08 14:05:08 -0300 | [diff] [blame] | 661 | struct v4l2_requestbuffers *reqbufs) |
Sylwester Nawrocki | 5f3cc44 | 2010-10-07 10:06:16 -0300 | [diff] [blame] | 662 | { |
| 663 | struct fimc_ctx *ctx = priv; |
Sylwester Nawrocki | 8293ebf | 2010-12-01 10:25:18 -0300 | [diff] [blame] | 664 | struct fimc_vid_cap *cap = &ctx->fimc_dev->vid_cap; |
Sylwester Nawrocki | 5f3cc44 | 2010-10-07 10:06:16 -0300 | [diff] [blame] | 665 | int ret; |
| 666 | |
Sylwester Nawrocki | 5f3cc44 | 2010-10-07 10:06:16 -0300 | [diff] [blame] | 667 | |
Sylwester Nawrocki | 2dab38e | 2010-12-01 10:14:59 -0300 | [diff] [blame] | 668 | ret = vb2_reqbufs(&cap->vbq, reqbufs); |
Sylwester Nawrocki | 5f3cc44 | 2010-10-07 10:06:16 -0300 | [diff] [blame] | 669 | if (!ret) |
| 670 | cap->reqbufs_count = reqbufs->count; |
| 671 | |
Sylwester Nawrocki | 5f3cc44 | 2010-10-07 10:06:16 -0300 | [diff] [blame] | 672 | return ret; |
| 673 | } |
| 674 | |
| 675 | static int fimc_cap_querybuf(struct file *file, void *priv, |
| 676 | struct v4l2_buffer *buf) |
| 677 | { |
| 678 | struct fimc_ctx *ctx = priv; |
| 679 | struct fimc_vid_cap *cap = &ctx->fimc_dev->vid_cap; |
| 680 | |
Sylwester Nawrocki | 2dab38e | 2010-12-01 10:14:59 -0300 | [diff] [blame] | 681 | return vb2_querybuf(&cap->vbq, buf); |
Sylwester Nawrocki | 5f3cc44 | 2010-10-07 10:06:16 -0300 | [diff] [blame] | 682 | } |
| 683 | |
| 684 | static int fimc_cap_qbuf(struct file *file, void *priv, |
| 685 | struct v4l2_buffer *buf) |
| 686 | { |
| 687 | struct fimc_ctx *ctx = priv; |
Sylwester Nawrocki | 8293ebf | 2010-12-01 10:25:18 -0300 | [diff] [blame] | 688 | struct fimc_vid_cap *cap = &ctx->fimc_dev->vid_cap; |
| 689 | return vb2_qbuf(&cap->vbq, buf); |
Sylwester Nawrocki | 5f3cc44 | 2010-10-07 10:06:16 -0300 | [diff] [blame] | 690 | } |
| 691 | |
| 692 | static int fimc_cap_dqbuf(struct file *file, void *priv, |
| 693 | struct v4l2_buffer *buf) |
| 694 | { |
| 695 | struct fimc_ctx *ctx = priv; |
Sylwester Nawrocki | 8293ebf | 2010-12-01 10:25:18 -0300 | [diff] [blame] | 696 | return vb2_dqbuf(&ctx->fimc_dev->vid_cap.vbq, buf, |
Sylwester Nawrocki | 5f3cc44 | 2010-10-07 10:06:16 -0300 | [diff] [blame] | 697 | file->f_flags & O_NONBLOCK); |
Sylwester Nawrocki | 5f3cc44 | 2010-10-07 10:06:16 -0300 | [diff] [blame] | 698 | } |
| 699 | |
| 700 | static int fimc_cap_s_ctrl(struct file *file, void *priv, |
| 701 | struct v4l2_control *ctrl) |
| 702 | { |
| 703 | struct fimc_ctx *ctx = priv; |
| 704 | int ret = -EINVAL; |
| 705 | |
Sylwester Nawrocki | 5f3cc44 | 2010-10-07 10:06:16 -0300 | [diff] [blame] | 706 | /* Allow any controls but 90/270 rotation while streaming */ |
| 707 | if (!fimc_capture_active(ctx->fimc_dev) || |
| 708 | ctrl->id != V4L2_CID_ROTATE || |
| 709 | (ctrl->value != 90 && ctrl->value != 270)) { |
| 710 | ret = check_ctrl_val(ctx, ctrl); |
| 711 | if (!ret) { |
| 712 | ret = fimc_s_ctrl(ctx, ctrl); |
| 713 | if (!ret) |
| 714 | ctx->state |= FIMC_PARAMS; |
| 715 | } |
| 716 | } |
| 717 | if (ret == -EINVAL) |
| 718 | ret = v4l2_subdev_call(ctx->fimc_dev->vid_cap.sd, |
| 719 | core, s_ctrl, ctrl); |
Sylwester Nawrocki | 5f3cc44 | 2010-10-07 10:06:16 -0300 | [diff] [blame] | 720 | return ret; |
| 721 | } |
| 722 | |
Sylwester Nawrocki | e004e02 | 2010-11-25 11:01:51 -0300 | [diff] [blame] | 723 | static int fimc_cap_cropcap(struct file *file, void *fh, |
| 724 | struct v4l2_cropcap *cr) |
| 725 | { |
| 726 | struct fimc_frame *f; |
| 727 | struct fimc_ctx *ctx = fh; |
Sylwester Nawrocki | e004e02 | 2010-11-25 11:01:51 -0300 | [diff] [blame] | 728 | |
Sylwester Nawrocki | ef7af59 | 2010-12-08 14:05:08 -0300 | [diff] [blame] | 729 | if (cr->type != V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE) |
Sylwester Nawrocki | e004e02 | 2010-11-25 11:01:51 -0300 | [diff] [blame] | 730 | return -EINVAL; |
| 731 | |
Sylwester Nawrocki | e004e02 | 2010-11-25 11:01:51 -0300 | [diff] [blame] | 732 | f = &ctx->s_frame; |
Sylwester Nawrocki | ef7af59 | 2010-12-08 14:05:08 -0300 | [diff] [blame] | 733 | |
Sylwester Nawrocki | e004e02 | 2010-11-25 11:01:51 -0300 | [diff] [blame] | 734 | cr->bounds.left = 0; |
| 735 | cr->bounds.top = 0; |
| 736 | cr->bounds.width = f->o_width; |
| 737 | cr->bounds.height = f->o_height; |
| 738 | cr->defrect = cr->bounds; |
| 739 | |
Sylwester Nawrocki | e004e02 | 2010-11-25 11:01:51 -0300 | [diff] [blame] | 740 | return 0; |
| 741 | } |
| 742 | |
| 743 | static int fimc_cap_g_crop(struct file *file, void *fh, struct v4l2_crop *cr) |
| 744 | { |
| 745 | struct fimc_frame *f; |
| 746 | struct fimc_ctx *ctx = file->private_data; |
Sylwester Nawrocki | e004e02 | 2010-11-25 11:01:51 -0300 | [diff] [blame] | 747 | |
| 748 | f = &ctx->s_frame; |
Sylwester Nawrocki | 8293ebf | 2010-12-01 10:25:18 -0300 | [diff] [blame] | 749 | |
Sylwester Nawrocki | e004e02 | 2010-11-25 11:01:51 -0300 | [diff] [blame] | 750 | cr->c.left = f->offs_h; |
| 751 | cr->c.top = f->offs_v; |
| 752 | cr->c.width = f->width; |
| 753 | cr->c.height = f->height; |
| 754 | |
Sylwester Nawrocki | e004e02 | 2010-11-25 11:01:51 -0300 | [diff] [blame] | 755 | return 0; |
| 756 | } |
| 757 | |
Sylwester Nawrocki | 5f3cc44 | 2010-10-07 10:06:16 -0300 | [diff] [blame] | 758 | static int fimc_cap_s_crop(struct file *file, void *fh, |
| 759 | struct v4l2_crop *cr) |
| 760 | { |
| 761 | struct fimc_frame *f; |
| 762 | struct fimc_ctx *ctx = file->private_data; |
| 763 | struct fimc_dev *fimc = ctx->fimc_dev; |
| 764 | int ret = -EINVAL; |
| 765 | |
| 766 | if (fimc_capture_active(fimc)) |
| 767 | return -EBUSY; |
| 768 | |
| 769 | ret = fimc_try_crop(ctx, cr); |
| 770 | if (ret) |
| 771 | return ret; |
| 772 | |
Sylwester Nawrocki | 5f3cc44 | 2010-10-07 10:06:16 -0300 | [diff] [blame] | 773 | if (!(ctx->state & FIMC_DST_FMT)) { |
| 774 | v4l2_err(&fimc->vid_cap.v4l2_dev, |
| 775 | "Capture color format not set\n"); |
Sylwester Nawrocki | 8293ebf | 2010-12-01 10:25:18 -0300 | [diff] [blame] | 776 | return -EINVAL; /* TODO: make sure this is the right value */ |
Sylwester Nawrocki | 5f3cc44 | 2010-10-07 10:06:16 -0300 | [diff] [blame] | 777 | } |
| 778 | |
| 779 | f = &ctx->s_frame; |
| 780 | /* Check for the pixel scaling ratio when cropping input image. */ |
Hyunwoong Kim | 1b09f29 | 2010-12-28 22:12:43 -0300 | [diff] [blame] | 781 | ret = fimc_check_scaler_ratio(cr->c.width, cr->c.height, |
| 782 | ctx->d_frame.width, ctx->d_frame.height, |
| 783 | ctx->rotation); |
Sylwester Nawrocki | 5f3cc44 | 2010-10-07 10:06:16 -0300 | [diff] [blame] | 784 | if (ret) { |
Sylwester Nawrocki | 4ecbf5d | 2011-02-23 08:24:33 -0300 | [diff] [blame] | 785 | v4l2_err(&fimc->vid_cap.v4l2_dev, "Out of the scaler range\n"); |
Sylwester Nawrocki | 8293ebf | 2010-12-01 10:25:18 -0300 | [diff] [blame] | 786 | return ret; |
Sylwester Nawrocki | 5f3cc44 | 2010-10-07 10:06:16 -0300 | [diff] [blame] | 787 | } |
| 788 | |
Sylwester Nawrocki | 8293ebf | 2010-12-01 10:25:18 -0300 | [diff] [blame] | 789 | f->offs_h = cr->c.left; |
| 790 | f->offs_v = cr->c.top; |
| 791 | f->width = cr->c.width; |
| 792 | f->height = cr->c.height; |
| 793 | |
| 794 | return 0; |
Sylwester Nawrocki | 5f3cc44 | 2010-10-07 10:06:16 -0300 | [diff] [blame] | 795 | } |
| 796 | |
| 797 | |
| 798 | static const struct v4l2_ioctl_ops fimc_capture_ioctl_ops = { |
| 799 | .vidioc_querycap = fimc_vidioc_querycap_capture, |
| 800 | |
Sylwester Nawrocki | ef7af59 | 2010-12-08 14:05:08 -0300 | [diff] [blame] | 801 | .vidioc_enum_fmt_vid_cap_mplane = fimc_vidioc_enum_fmt_mplane, |
| 802 | .vidioc_try_fmt_vid_cap_mplane = fimc_vidioc_try_fmt_mplane, |
| 803 | .vidioc_s_fmt_vid_cap_mplane = fimc_cap_s_fmt_mplane, |
| 804 | .vidioc_g_fmt_vid_cap_mplane = fimc_vidioc_g_fmt_mplane, |
Sylwester Nawrocki | 5f3cc44 | 2010-10-07 10:06:16 -0300 | [diff] [blame] | 805 | |
| 806 | .vidioc_reqbufs = fimc_cap_reqbufs, |
| 807 | .vidioc_querybuf = fimc_cap_querybuf, |
| 808 | |
| 809 | .vidioc_qbuf = fimc_cap_qbuf, |
| 810 | .vidioc_dqbuf = fimc_cap_dqbuf, |
| 811 | |
| 812 | .vidioc_streamon = fimc_cap_streamon, |
| 813 | .vidioc_streamoff = fimc_cap_streamoff, |
| 814 | |
| 815 | .vidioc_queryctrl = fimc_vidioc_queryctrl, |
| 816 | .vidioc_g_ctrl = fimc_vidioc_g_ctrl, |
| 817 | .vidioc_s_ctrl = fimc_cap_s_ctrl, |
| 818 | |
Sylwester Nawrocki | e004e02 | 2010-11-25 11:01:51 -0300 | [diff] [blame] | 819 | .vidioc_g_crop = fimc_cap_g_crop, |
Sylwester Nawrocki | 5f3cc44 | 2010-10-07 10:06:16 -0300 | [diff] [blame] | 820 | .vidioc_s_crop = fimc_cap_s_crop, |
Sylwester Nawrocki | e004e02 | 2010-11-25 11:01:51 -0300 | [diff] [blame] | 821 | .vidioc_cropcap = fimc_cap_cropcap, |
Sylwester Nawrocki | 5f3cc44 | 2010-10-07 10:06:16 -0300 | [diff] [blame] | 822 | |
| 823 | .vidioc_enum_input = fimc_cap_enum_input, |
| 824 | .vidioc_s_input = fimc_cap_s_input, |
| 825 | .vidioc_g_input = fimc_cap_g_input, |
| 826 | }; |
| 827 | |
Sylwester Nawrocki | ef7af59 | 2010-12-08 14:05:08 -0300 | [diff] [blame] | 828 | /* fimc->lock must be already initialized */ |
Sylwester Nawrocki | 5f3cc44 | 2010-10-07 10:06:16 -0300 | [diff] [blame] | 829 | int fimc_register_capture_device(struct fimc_dev *fimc) |
| 830 | { |
| 831 | struct v4l2_device *v4l2_dev = &fimc->vid_cap.v4l2_dev; |
| 832 | struct video_device *vfd; |
| 833 | struct fimc_vid_cap *vid_cap; |
| 834 | struct fimc_ctx *ctx; |
| 835 | struct v4l2_format f; |
Sylwester Nawrocki | ef7af59 | 2010-12-08 14:05:08 -0300 | [diff] [blame] | 836 | struct fimc_frame *fr; |
Sylwester Nawrocki | 2dab38e | 2010-12-01 10:14:59 -0300 | [diff] [blame] | 837 | struct vb2_queue *q; |
Sylwester Nawrocki | 5f3cc44 | 2010-10-07 10:06:16 -0300 | [diff] [blame] | 838 | int ret; |
| 839 | |
| 840 | ctx = kzalloc(sizeof *ctx, GFP_KERNEL); |
| 841 | if (!ctx) |
| 842 | return -ENOMEM; |
| 843 | |
| 844 | ctx->fimc_dev = fimc; |
| 845 | ctx->in_path = FIMC_CAMERA; |
| 846 | ctx->out_path = FIMC_DMA; |
| 847 | ctx->state = FIMC_CTX_CAP; |
| 848 | |
Sylwester Nawrocki | ef7af59 | 2010-12-08 14:05:08 -0300 | [diff] [blame] | 849 | /* Default format of the output frames */ |
| 850 | f.fmt.pix.pixelformat = V4L2_PIX_FMT_RGB32; |
| 851 | fr = &ctx->d_frame; |
| 852 | fr->fmt = find_format(&f, FMT_FLAGS_M2M); |
| 853 | fr->width = fr->f_width = fr->o_width = 640; |
| 854 | fr->height = fr->f_height = fr->o_height = 480; |
Sylwester Nawrocki | 5f3cc44 | 2010-10-07 10:06:16 -0300 | [diff] [blame] | 855 | |
Sylwester Nawrocki | 574e171 | 2011-07-26 18:08:21 -0300 | [diff] [blame] | 856 | snprintf(v4l2_dev->name, sizeof(v4l2_dev->name), |
| 857 | "%s.capture", dev_name(&fimc->pdev->dev)); |
Sylwester Nawrocki | 5f3cc44 | 2010-10-07 10:06:16 -0300 | [diff] [blame] | 858 | |
| 859 | ret = v4l2_device_register(NULL, v4l2_dev); |
| 860 | if (ret) |
| 861 | goto err_info; |
| 862 | |
| 863 | vfd = video_device_alloc(); |
| 864 | if (!vfd) { |
| 865 | v4l2_err(v4l2_dev, "Failed to allocate video device\n"); |
| 866 | goto err_v4l2_reg; |
| 867 | } |
| 868 | |
Sylwester Nawrocki | 574e171 | 2011-07-26 18:08:21 -0300 | [diff] [blame] | 869 | strlcpy(vfd->name, v4l2_dev->name, sizeof(vfd->name)); |
Sylwester Nawrocki | 5f3cc44 | 2010-10-07 10:06:16 -0300 | [diff] [blame] | 870 | |
| 871 | vfd->fops = &fimc_capture_fops; |
| 872 | vfd->ioctl_ops = &fimc_capture_ioctl_ops; |
Sylwester Nawrocki | 574e171 | 2011-07-26 18:08:21 -0300 | [diff] [blame] | 873 | vfd->v4l2_dev = v4l2_dev; |
Sylwester Nawrocki | 5f3cc44 | 2010-10-07 10:06:16 -0300 | [diff] [blame] | 874 | vfd->minor = -1; |
| 875 | vfd->release = video_device_release; |
Sylwester Nawrocki | 8293ebf | 2010-12-01 10:25:18 -0300 | [diff] [blame] | 876 | vfd->lock = &fimc->lock; |
Sylwester Nawrocki | 5f3cc44 | 2010-10-07 10:06:16 -0300 | [diff] [blame] | 877 | video_set_drvdata(vfd, fimc); |
| 878 | |
| 879 | vid_cap = &fimc->vid_cap; |
| 880 | vid_cap->vfd = vfd; |
| 881 | vid_cap->active_buf_cnt = 0; |
| 882 | vid_cap->reqbufs_count = 0; |
| 883 | vid_cap->refcnt = 0; |
Sylwester Nawrocki | ef7af59 | 2010-12-08 14:05:08 -0300 | [diff] [blame] | 884 | /* Default color format for image sensor */ |
Sylwester Nawrocki | 5f3cc44 | 2010-10-07 10:06:16 -0300 | [diff] [blame] | 885 | vid_cap->fmt.code = V4L2_MBUS_FMT_YUYV8_2X8; |
| 886 | |
| 887 | INIT_LIST_HEAD(&vid_cap->pending_buf_q); |
| 888 | INIT_LIST_HEAD(&vid_cap->active_buf_q); |
| 889 | spin_lock_init(&ctx->slock); |
| 890 | vid_cap->ctx = ctx; |
| 891 | |
Sylwester Nawrocki | 2dab38e | 2010-12-01 10:14:59 -0300 | [diff] [blame] | 892 | q = &fimc->vid_cap.vbq; |
| 893 | memset(q, 0, sizeof(*q)); |
Sylwester Nawrocki | ef7af59 | 2010-12-08 14:05:08 -0300 | [diff] [blame] | 894 | q->type = V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE; |
Sylwester Nawrocki | 2dab38e | 2010-12-01 10:14:59 -0300 | [diff] [blame] | 895 | q->io_modes = VB2_MMAP | VB2_USERPTR; |
| 896 | q->drv_priv = fimc->vid_cap.ctx; |
| 897 | q->ops = &fimc_capture_qops; |
| 898 | q->mem_ops = &vb2_dma_contig_memops; |
| 899 | q->buf_struct_size = sizeof(struct fimc_vid_buffer); |
| 900 | |
| 901 | vb2_queue_init(q); |
Sylwester Nawrocki | 5f3cc44 | 2010-10-07 10:06:16 -0300 | [diff] [blame] | 902 | |
Sylwester Nawrocki | 574e171 | 2011-07-26 18:08:21 -0300 | [diff] [blame] | 903 | fimc->vid_cap.vd_pad.flags = MEDIA_PAD_FL_SINK; |
| 904 | ret = media_entity_init(&vfd->entity, 1, &fimc->vid_cap.vd_pad, 0); |
| 905 | if (ret) |
| 906 | goto err_ent; |
| 907 | |
Sylwester Nawrocki | 5f3cc44 | 2010-10-07 10:06:16 -0300 | [diff] [blame] | 908 | return 0; |
| 909 | |
Sylwester Nawrocki | 574e171 | 2011-07-26 18:08:21 -0300 | [diff] [blame] | 910 | err_ent: |
Sylwester Nawrocki | 5f3cc44 | 2010-10-07 10:06:16 -0300 | [diff] [blame] | 911 | video_device_release(vfd); |
| 912 | err_v4l2_reg: |
| 913 | v4l2_device_unregister(v4l2_dev); |
| 914 | err_info: |
Sylwester Nawrocki | cfd7731 | 2011-06-02 06:18:34 -0300 | [diff] [blame] | 915 | kfree(ctx); |
Sylwester Nawrocki | 5f3cc44 | 2010-10-07 10:06:16 -0300 | [diff] [blame] | 916 | dev_err(&fimc->pdev->dev, "failed to install\n"); |
| 917 | return ret; |
| 918 | } |
| 919 | |
| 920 | void fimc_unregister_capture_device(struct fimc_dev *fimc) |
| 921 | { |
Sylwester Nawrocki | 574e171 | 2011-07-26 18:08:21 -0300 | [diff] [blame] | 922 | struct video_device *vfd = fimc->vid_cap.vfd; |
Sylwester Nawrocki | 5f3cc44 | 2010-10-07 10:06:16 -0300 | [diff] [blame] | 923 | |
Sylwester Nawrocki | 574e171 | 2011-07-26 18:08:21 -0300 | [diff] [blame] | 924 | if (vfd) { |
| 925 | media_entity_cleanup(&vfd->entity); |
Sylwester Nawrocki | 96a8574 | 2011-08-26 15:40:36 -0300 | [diff] [blame^] | 926 | /* Can also be called if video device was |
| 927 | not registered */ |
Sylwester Nawrocki | 574e171 | 2011-07-26 18:08:21 -0300 | [diff] [blame] | 928 | video_unregister_device(vfd); |
| 929 | } |
| 930 | kfree(fimc->vid_cap.ctx); |
Sylwester Nawrocki | 96a8574 | 2011-08-26 15:40:36 -0300 | [diff] [blame^] | 931 | fimc->vid_cap.ctx = NULL; |
Sylwester Nawrocki | 5f3cc44 | 2010-10-07 10:06:16 -0300 | [diff] [blame] | 932 | } |