diff options
Diffstat (limited to 'drivers/staging/media/davinci_vpfe/dm365_ipipeif.c')
| -rw-r--r-- | drivers/staging/media/davinci_vpfe/dm365_ipipeif.c | 1070 |
1 files changed, 0 insertions, 1070 deletions
diff --git a/drivers/staging/media/davinci_vpfe/dm365_ipipeif.c b/drivers/staging/media/davinci_vpfe/dm365_ipipeif.c deleted file mode 100644 index 51d4cd1bdb97..000000000000 --- a/drivers/staging/media/davinci_vpfe/dm365_ipipeif.c +++ /dev/null @@ -1,1070 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0 -/* - * Copyright (C) 2012 Texas Instruments Inc - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License as - * published by the Free Software Foundation version 2. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * Contributors: - * Manjunath Hadli <manjunath.hadli@ti.com> - * Prabhakar Lad <prabhakar.lad@ti.com> - */ - -#include "dm365_ipipeif.h" -#include "vpfe_mc_capture.h" - -static const unsigned int ipipeif_input_fmts[] = { - MEDIA_BUS_FMT_UYVY8_2X8, - MEDIA_BUS_FMT_SGRBG12_1X12, - MEDIA_BUS_FMT_Y8_1X8, - MEDIA_BUS_FMT_UV8_1X8, - MEDIA_BUS_FMT_YDYUYDYV8_1X16, - MEDIA_BUS_FMT_SBGGR8_1X8, -}; - -static const unsigned int ipipeif_output_fmts[] = { - MEDIA_BUS_FMT_UYVY8_2X8, - MEDIA_BUS_FMT_SGRBG12_1X12, - MEDIA_BUS_FMT_Y8_1X8, - MEDIA_BUS_FMT_UV8_1X8, - MEDIA_BUS_FMT_YDYUYDYV8_1X16, - MEDIA_BUS_FMT_SBGGR8_1X8, - MEDIA_BUS_FMT_SGRBG10_DPCM8_1X8, - MEDIA_BUS_FMT_SGRBG10_ALAW8_1X8, -}; - -static int -ipipeif_get_pack_mode(u32 in_pix_fmt) -{ - switch (in_pix_fmt) { - case MEDIA_BUS_FMT_SBGGR8_1X8: - case MEDIA_BUS_FMT_Y8_1X8: - case MEDIA_BUS_FMT_SGRBG10_DPCM8_1X8: - case MEDIA_BUS_FMT_UV8_1X8: - return IPIPEIF_5_1_PACK_8_BIT; - - case MEDIA_BUS_FMT_SGRBG10_ALAW8_1X8: - return IPIPEIF_5_1_PACK_8_BIT_A_LAW; - - case MEDIA_BUS_FMT_SGRBG12_1X12: - return IPIPEIF_5_1_PACK_16_BIT; - - case MEDIA_BUS_FMT_SBGGR12_1X12: - return IPIPEIF_5_1_PACK_12_BIT; - - default: - return IPIPEIF_5_1_PACK_16_BIT; - } -} - -static inline u32 ipipeif_read(void __iomem *addr, u32 offset) -{ - return readl(addr + offset); -} - -static inline void ipipeif_write(u32 val, void __iomem *addr, u32 offset) -{ - writel(val, addr + offset); -} - -static void ipipeif_config_dpc(void __iomem *addr, struct ipipeif_dpc *dpc) -{ - u32 val = 0; - - if (dpc->en) { - val = (dpc->en & 1) << IPIPEIF_DPC2_EN_SHIFT; - val |= dpc->thr & IPIPEIF_DPC2_THR_MASK; - } - ipipeif_write(val, addr, IPIPEIF_DPC2); -} - -#define IPIPEIF_MODE_CONTINUOUS 0 -#define IPIPEIF_MODE_ONE_SHOT 1 - -static int get_oneshot_mode(enum ipipeif_input_entity input) -{ - if (input == IPIPEIF_INPUT_MEMORY) - return IPIPEIF_MODE_ONE_SHOT; - if (input == IPIPEIF_INPUT_ISIF) - return IPIPEIF_MODE_CONTINUOUS; - - return -EINVAL; -} - -static int -ipipeif_get_cfg_src1(struct vpfe_ipipeif_device *ipipeif) -{ - struct v4l2_mbus_framefmt *informat; - - informat = &ipipeif->formats[IPIPEIF_PAD_SINK]; - if (ipipeif->input == IPIPEIF_INPUT_MEMORY && - (informat->code == MEDIA_BUS_FMT_Y8_1X8 || - informat->code == MEDIA_BUS_FMT_UV8_1X8)) - return IPIPEIF_CCDC; - - return IPIPEIF_SRC1_PARALLEL_PORT; -} - -static int -ipipeif_get_data_shift(struct vpfe_ipipeif_device *ipipeif) -{ - struct v4l2_mbus_framefmt *informat; - - informat = &ipipeif->formats[IPIPEIF_PAD_SINK]; - - switch (informat->code) { - case MEDIA_BUS_FMT_SGRBG12_1X12: - return IPIPEIF_5_1_BITS11_0; - - case MEDIA_BUS_FMT_Y8_1X8: - case MEDIA_BUS_FMT_UV8_1X8: - return IPIPEIF_5_1_BITS11_0; - - default: - return IPIPEIF_5_1_BITS7_0; - } -} - -static enum ipipeif_input_source -ipipeif_get_source(struct vpfe_ipipeif_device *ipipeif) -{ - struct v4l2_mbus_framefmt *informat; - - informat = &ipipeif->formats[IPIPEIF_PAD_SINK]; - if (ipipeif->input == IPIPEIF_INPUT_ISIF) - return IPIPEIF_CCDC; - - if (informat->code == MEDIA_BUS_FMT_UYVY8_2X8) - return IPIPEIF_SDRAM_YUV; - - return IPIPEIF_SDRAM_RAW; -} - -void vpfe_ipipeif_ss_buffer_isr(struct vpfe_ipipeif_device *ipipeif) -{ - struct vpfe_video_device *video_in = &ipipeif->video_in; - - if (ipipeif->input != IPIPEIF_INPUT_MEMORY) - return; - - spin_lock(&video_in->dma_queue_lock); - vpfe_video_process_buffer_complete(video_in); - video_in->state = VPFE_VIDEO_BUFFER_NOT_QUEUED; - vpfe_video_schedule_next_buffer(video_in); - spin_unlock(&video_in->dma_queue_lock); -} - -int vpfe_ipipeif_decimation_enabled(struct vpfe_device *vpfe_dev) -{ - struct vpfe_ipipeif_device *ipipeif = &vpfe_dev->vpfe_ipipeif; - - return ipipeif->config.decimation; -} - -int vpfe_ipipeif_get_rsz(struct vpfe_device *vpfe_dev) -{ - struct vpfe_ipipeif_device *ipipeif = &vpfe_dev->vpfe_ipipeif; - - return ipipeif->config.rsz; -} - -#define RD_DATA_15_2 0x7 - -/* - * ipipeif_hw_setup() - This function sets up IPIPEIF - * @sd: pointer to v4l2 subdev structure - * return -EINVAL or zero on success - */ -static int ipipeif_hw_setup(struct v4l2_subdev *sd) -{ - struct vpfe_ipipeif_device *ipipeif = v4l2_get_subdevdata(sd); - struct v4l2_mbus_framefmt *informat, *outformat; - struct ipipeif_params params = ipipeif->config; - enum ipipeif_input_source ipipeif_source; - u32 isif_port_if; - void __iomem *ipipeif_base_addr; - unsigned long val; - int data_shift; - int pack_mode; - int source1; - int tmp; - - ipipeif_base_addr = ipipeif->ipipeif_base_addr; - - /* Enable clock to IPIPEIF and IPIPE */ - vpss_enable_clock(VPSS_IPIPEIF_CLOCK, 1); - - informat = &ipipeif->formats[IPIPEIF_PAD_SINK]; - outformat = &ipipeif->formats[IPIPEIF_PAD_SOURCE]; - - /* Combine all the fields to make CFG1 register of IPIPEIF */ - tmp = val = get_oneshot_mode(ipipeif->input); - if (tmp < 0) { - dev_err(&sd->devnode->dev, "ipipeif: links setup required"); - return -EINVAL; - } - val <<= ONESHOT_SHIFT; - - ipipeif_source = ipipeif_get_source(ipipeif); - val |= ipipeif_source << INPSRC_SHIFT; - - val |= params.clock_select << CLKSEL_SHIFT; - val |= params.avg_filter << AVGFILT_SHIFT; - val |= params.decimation << DECIM_SHIFT; - - pack_mode = ipipeif_get_pack_mode(informat->code); - val |= pack_mode << PACK8IN_SHIFT; - - source1 = ipipeif_get_cfg_src1(ipipeif); - val |= source1 << INPSRC1_SHIFT; - - data_shift = ipipeif_get_data_shift(ipipeif); - if (ipipeif_source != IPIPEIF_SDRAM_YUV) - val |= data_shift << DATASFT_SHIFT; - else - val &= ~(RD_DATA_15_2 << DATASFT_SHIFT); - - ipipeif_write(val, ipipeif_base_addr, IPIPEIF_CFG1); - - switch (ipipeif_source) { - case IPIPEIF_CCDC: - ipipeif_write(ipipeif->gain, ipipeif_base_addr, IPIPEIF_GAIN); - break; - - case IPIPEIF_SDRAM_RAW: - case IPIPEIF_CCDC_DARKFM: - ipipeif_write(ipipeif->gain, ipipeif_base_addr, IPIPEIF_GAIN); - /* fall through */ - case IPIPEIF_SDRAM_YUV: - val |= data_shift << DATASFT_SHIFT; - ipipeif_write(params.ppln, ipipeif_base_addr, IPIPEIF_PPLN); - ipipeif_write(params.lpfr, ipipeif_base_addr, IPIPEIF_LPFR); - ipipeif_write(informat->width, ipipeif_base_addr, IPIPEIF_HNUM); - ipipeif_write(informat->height, - ipipeif_base_addr, IPIPEIF_VNUM); - break; - - default: - return -EINVAL; - } - - /*check if decimation is enable or not */ - if (params.decimation) - ipipeif_write(params.rsz, ipipeif_base_addr, IPIPEIF_RSZ); - - /* Setup sync alignment and initial rsz position */ - val = params.if_5_1.align_sync & 1; - val <<= IPIPEIF_INIRSZ_ALNSYNC_SHIFT; - val |= params.if_5_1.rsz_start & IPIPEIF_INIRSZ_MASK; - ipipeif_write(val, ipipeif_base_addr, IPIPEIF_INIRSZ); - isif_port_if = informat->code; - - if (isif_port_if == MEDIA_BUS_FMT_Y8_1X8) - isif_port_if = MEDIA_BUS_FMT_YUYV8_1X16; - else if (isif_port_if == MEDIA_BUS_FMT_UV8_1X8) - isif_port_if = MEDIA_BUS_FMT_SGRBG12_1X12; - - /* Enable DPCM decompression */ - switch (ipipeif_source) { - case IPIPEIF_SDRAM_RAW: - val = 0; - if (outformat->code == MEDIA_BUS_FMT_SGRBG10_DPCM8_1X8) { - val = 1; - val |= (IPIPEIF_DPCM_8BIT_10BIT & 1) << - IPIPEIF_DPCM_BITS_SHIFT; - val |= (ipipeif->dpcm_predictor & 1) << - IPIPEIF_DPCM_PRED_SHIFT; - } - ipipeif_write(val, ipipeif_base_addr, IPIPEIF_DPCM); - - /* set DPC */ - ipipeif_config_dpc(ipipeif_base_addr, ¶ms.if_5_1.dpc); - - ipipeif_write(params.if_5_1.clip, - ipipeif_base_addr, IPIPEIF_OCLIP); - - /* fall through for SDRAM YUV mode */ - /* configure CFG2 */ - val = ipipeif_read(ipipeif_base_addr, IPIPEIF_CFG2); - switch (isif_port_if) { - case MEDIA_BUS_FMT_YUYV8_1X16: - case MEDIA_BUS_FMT_UYVY8_2X8: - case MEDIA_BUS_FMT_Y8_1X8: - clear_bit(IPIPEIF_CFG2_YUV8_SHIFT, &val); - set_bit(IPIPEIF_CFG2_YUV16_SHIFT, &val); - ipipeif_write(val, ipipeif_base_addr, IPIPEIF_CFG2); - break; - - default: - clear_bit(IPIPEIF_CFG2_YUV8_SHIFT, &val); - clear_bit(IPIPEIF_CFG2_YUV16_SHIFT, &val); - ipipeif_write(val, ipipeif_base_addr, IPIPEIF_CFG2); - break; - } - /* fall through */ - - case IPIPEIF_SDRAM_YUV: - /* Set clock divider */ - if (params.clock_select == IPIPEIF_SDRAM_CLK) { - val = ipipeif_read(ipipeif_base_addr, IPIPEIF_CLKDIV); - val |= (params.if_5_1.clk_div.m - 1) << - IPIPEIF_CLKDIV_M_SHIFT; - val |= (params.if_5_1.clk_div.n - 1); - ipipeif_write(val, ipipeif_base_addr, IPIPEIF_CLKDIV); - } - break; - - case IPIPEIF_CCDC: - case IPIPEIF_CCDC_DARKFM: - /* set DPC */ - ipipeif_config_dpc(ipipeif_base_addr, ¶ms.if_5_1.dpc); - - /* Set DF gain & threshold control */ - val = 0; - if (params.if_5_1.df_gain_en) { - val = params.if_5_1.df_gain_thr & - IPIPEIF_DF_GAIN_THR_MASK; - ipipeif_write(val, ipipeif_base_addr, IPIPEIF_DFSGTH); - val = (params.if_5_1.df_gain_en & 1) << - IPIPEIF_DF_GAIN_EN_SHIFT; - val |= params.if_5_1.df_gain & - IPIPEIF_DF_GAIN_MASK; - } - ipipeif_write(val, ipipeif_base_addr, IPIPEIF_DFSGVL); - /* configure CFG2 */ - val = VPFE_PINPOL_POSITIVE << IPIPEIF_CFG2_HDPOL_SHIFT; - val |= VPFE_PINPOL_POSITIVE << IPIPEIF_CFG2_VDPOL_SHIFT; - - switch (isif_port_if) { - case MEDIA_BUS_FMT_YUYV8_1X16: - case MEDIA_BUS_FMT_YUYV10_1X20: - clear_bit(IPIPEIF_CFG2_YUV8_SHIFT, &val); - set_bit(IPIPEIF_CFG2_YUV16_SHIFT, &val); - break; - - case MEDIA_BUS_FMT_YUYV8_2X8: - case MEDIA_BUS_FMT_UYVY8_2X8: - case MEDIA_BUS_FMT_Y8_1X8: - case MEDIA_BUS_FMT_YUYV10_2X10: - set_bit(IPIPEIF_CFG2_YUV8_SHIFT, &val); - set_bit(IPIPEIF_CFG2_YUV16_SHIFT, &val); - val |= IPIPEIF_CBCR_Y << IPIPEIF_CFG2_YUV8P_SHIFT; - break; - - default: - /* Bayer */ - ipipeif_write(params.if_5_1.clip, ipipeif_base_addr, - IPIPEIF_OCLIP); - } - ipipeif_write(val, ipipeif_base_addr, IPIPEIF_CFG2); - break; - - default: - return -EINVAL; - } - - return 0; -} - -static int -ipipeif_set_config(struct v4l2_subdev *sd, struct ipipeif_params *config) -{ - struct vpfe_ipipeif_device *ipipeif = v4l2_get_subdevdata(sd); - struct device *dev = ipipeif->subdev.v4l2_dev->dev; - - if (!config) { - dev_err(dev, "Invalid configuration pointer\n"); - return -EINVAL; - } - - ipipeif->config.clock_select = config->clock_select; - ipipeif->config.ppln = config->ppln; - ipipeif->config.lpfr = config->lpfr; - ipipeif->config.rsz = config->rsz; - ipipeif->config.decimation = config->decimation; - if (ipipeif->config.decimation && - (ipipeif->config.rsz < IPIPEIF_RSZ_MIN || - ipipeif->config.rsz > IPIPEIF_RSZ_MAX)) { - dev_err(dev, "rsz range is %d to %d\n", - IPIPEIF_RSZ_MIN, IPIPEIF_RSZ_MAX); - return -EINVAL; - } - - ipipeif->config.avg_filter = config->avg_filter; - - ipipeif->config.if_5_1.df_gain_thr = config->if_5_1.df_gain_thr; - ipipeif->config.if_5_1.df_gain = config->if_5_1.df_gain; - ipipeif->config.if_5_1.df_gain_en = config->if_5_1.df_gain_en; - - ipipeif->config.if_5_1.rsz_start = config->if_5_1.rsz_start; - ipipeif->config.if_5_1.align_sync = config->if_5_1.align_sync; - ipipeif->config.if_5_1.clip = config->if_5_1.clip; - - ipipeif->config.if_5_1.dpc.en = config->if_5_1.dpc.en; - ipipeif->config.if_5_1.dpc.thr = config->if_5_1.dpc.thr; - - ipipeif->config.if_5_1.clk_div.m = config->if_5_1.clk_div.m; - ipipeif->config.if_5_1.clk_div.n = config->if_5_1.clk_div.n; - - return 0; -} - -static int -ipipeif_get_config(struct v4l2_subdev *sd, void *arg) -{ - struct vpfe_ipipeif_device *ipipeif = v4l2_get_subdevdata(sd); - struct ipipeif_params *config = arg; - struct device *dev = ipipeif->subdev.v4l2_dev->dev; - - if (!arg) { - dev_err(dev, "Invalid configuration pointer\n"); - return -EINVAL; - } - - config->clock_select = ipipeif->config.clock_select; - config->ppln = ipipeif->config.ppln; - config->lpfr = ipipeif->config.lpfr; - config->rsz = ipipeif->config.rsz; - config->decimation = ipipeif->config.decimation; - config->avg_filter = ipipeif->config.avg_filter; - - config->if_5_1.df_gain_thr = ipipeif->config.if_5_1.df_gain_thr; - config->if_5_1.df_gain = ipipeif->config.if_5_1.df_gain; - config->if_5_1.df_gain_en = ipipeif->config.if_5_1.df_gain_en; - - config->if_5_1.rsz_start = ipipeif->config.if_5_1.rsz_start; - config->if_5_1.align_sync = ipipeif->config.if_5_1.align_sync; - config->if_5_1.clip = ipipeif->config.if_5_1.clip; - - config->if_5_1.dpc.en = ipipeif->config.if_5_1.dpc.en; - config->if_5_1.dpc.thr = ipipeif->config.if_5_1.dpc.thr; - - config->if_5_1.clk_div.m = ipipeif->config.if_5_1.clk_div.m; - config->if_5_1.clk_div.n = ipipeif->config.if_5_1.clk_div.n; - - return 0; -} - -/* - * ipipeif_ioctl() - Handle ipipeif module private ioctl's - * @sd: pointer to v4l2 subdev structure - * @cmd: configuration command - * @arg: configuration argument - */ -static long ipipeif_ioctl(struct v4l2_subdev *sd, - unsigned int cmd, void *arg) -{ - struct ipipeif_params *config = arg; - int ret = -ENOIOCTLCMD; - - switch (cmd) { - case VIDIOC_VPFE_IPIPEIF_S_CONFIG: - ret = ipipeif_set_config(sd, config); - break; - - case VIDIOC_VPFE_IPIPEIF_G_CONFIG: - ret = ipipeif_get_config(sd, arg); - break; - } - return ret; -} - -/* - * ipipeif_s_ctrl() - Handle set control subdev method - * @ctrl: pointer to v4l2 control structure - */ -static int ipipeif_s_ctrl(struct v4l2_ctrl *ctrl) -{ - struct vpfe_ipipeif_device *ipipeif = - container_of(ctrl->handler, struct vpfe_ipipeif_device, ctrls); - - switch (ctrl->id) { - case VPFE_CID_DPCM_PREDICTOR: - ipipeif->dpcm_predictor = ctrl->val; - break; - - case V4L2_CID_GAIN: - ipipeif->gain = ctrl->val; - break; - - default: - return -EINVAL; - } - - return 0; -} - -#define ENABLE_IPIPEIF 0x1 - -void vpfe_ipipeif_enable(struct vpfe_device *vpfe_dev) -{ - struct vpfe_ipipeif_device *ipipeif = &vpfe_dev->vpfe_ipipeif; - void __iomem *ipipeif_base_addr = ipipeif->ipipeif_base_addr; - unsigned char val; - - if (ipipeif->input != IPIPEIF_INPUT_MEMORY) - return; - - do { - val = ipipeif_read(ipipeif_base_addr, IPIPEIF_ENABLE); - } while (val & 0x1); - - ipipeif_write(ENABLE_IPIPEIF, ipipeif_base_addr, IPIPEIF_ENABLE); -} - -/* - * ipipeif_set_stream() - Enable/Disable streaming on ipipeif subdev - * @sd: pointer to v4l2 subdev structure - * @enable: 1 == Enable, 0 == Disable - */ -static int ipipeif_set_stream(struct v4l2_subdev *sd, int enable) -{ - struct vpfe_ipipeif_device *ipipeif = v4l2_get_subdevdata(sd); - struct vpfe_device *vpfe_dev = to_vpfe_device(ipipeif); - int ret = 0; - - if (!enable) - return ret; - - ret = ipipeif_hw_setup(sd); - if (!ret) - vpfe_ipipeif_enable(vpfe_dev); - - return ret; -} - -/* - * ipipeif_enum_mbus_code() - Handle pixel format enumeration - * @sd: pointer to v4l2 subdev structure - * @cfg: V4L2 subdev pad config - * @code: pointer to v4l2_subdev_mbus_code_enum structure - * return -EINVAL or zero on success - */ -static int ipipeif_enum_mbus_code(struct v4l2_subdev *sd, - struct v4l2_subdev_pad_config *cfg, - struct v4l2_subdev_mbus_code_enum *code) -{ - switch (code->pad) { - case IPIPEIF_PAD_SINK: - if (code->index >= ARRAY_SIZE(ipipeif_input_fmts)) - return -EINVAL; - - code->code = ipipeif_input_fmts[code->index]; - break; - - case IPIPEIF_PAD_SOURCE: - if (code->index >= ARRAY_SIZE(ipipeif_output_fmts)) - return -EINVAL; - - code->code = ipipeif_output_fmts[code->index]; - break; - - default: - return -EINVAL; - } - - return 0; -} - -/* - * ipipeif_get_format() - Handle get format by pads subdev method - * @sd: pointer to v4l2 subdev structure - * @cfg: V4L2 subdev pad config - * @fmt: pointer to v4l2 subdev format structure - */ -static int -ipipeif_get_format(struct v4l2_subdev *sd, struct v4l2_subdev_pad_config *cfg, - struct v4l2_subdev_format *fmt) -{ - struct vpfe_ipipeif_device *ipipeif = v4l2_get_subdevdata(sd); - - if (fmt->which == V4L2_SUBDEV_FORMAT_ACTIVE) - fmt->format = ipipeif->formats[fmt->pad]; - else - fmt->format = *(v4l2_subdev_get_try_format(sd, cfg, fmt->pad)); - - return 0; -} - -#define MIN_OUT_WIDTH 32 -#define MIN_OUT_HEIGHT 32 - -/* - * ipipeif_try_format() - Handle try format by pad subdev method - * @ipipeif: VPFE ipipeif device. - * @cfg: V4L2 subdev pad config - * @pad: pad num. - * @fmt: pointer to v4l2 format structure. - * @which : wanted subdev format - */ -static void -ipipeif_try_format(struct vpfe_ipipeif_device *ipipeif, - struct v4l2_subdev_pad_config *cfg, unsigned int pad, - struct v4l2_mbus_framefmt *fmt, - enum v4l2_subdev_format_whence which) -{ - unsigned int max_out_height; - unsigned int max_out_width; - unsigned int i; - - max_out_width = IPIPE_MAX_OUTPUT_WIDTH_A; - max_out_height = IPIPE_MAX_OUTPUT_HEIGHT_A; - - if (pad == IPIPEIF_PAD_SINK) { - for (i = 0; i < ARRAY_SIZE(ipipeif_input_fmts); i++) - if (fmt->code == ipipeif_input_fmts[i]) - break; - - /* If not found, use SBGGR10 as default */ - if (i >= ARRAY_SIZE(ipipeif_input_fmts)) - fmt->code = MEDIA_BUS_FMT_SGRBG12_1X12; - } else if (pad == IPIPEIF_PAD_SOURCE) { - for (i = 0; i < ARRAY_SIZE(ipipeif_output_fmts); i++) - if (fmt->code == ipipeif_output_fmts[i]) - break; - - /* If not found, use UYVY as default */ - if (i >= ARRAY_SIZE(ipipeif_output_fmts)) - fmt->code = MEDIA_BUS_FMT_UYVY8_2X8; - } - - fmt->width = clamp_t(u32, fmt->width, MIN_OUT_HEIGHT, max_out_width); - fmt->height = clamp_t(u32, fmt->height, MIN_OUT_WIDTH, max_out_height); -} - -static int -ipipeif_enum_frame_size(struct v4l2_subdev *sd, - struct v4l2_subdev_pad_config *cfg, - struct v4l2_subdev_frame_size_enum *fse) -{ - struct vpfe_ipipeif_device *ipipeif = v4l2_get_subdevdata(sd); - struct v4l2_mbus_framefmt format; - - if (fse->index != 0) - return -EINVAL; - - format.code = fse->code; - format.width = 1; - format.height = 1; - ipipeif_try_format(ipipeif, cfg, fse->pad, &format, fse->which); - fse->min_width = format.width; - fse->min_height = format.height; - - if (format.code != fse->code) - return -EINVAL; - - format.code = fse->code; - format.width = -1; - format.height = -1; - ipipeif_try_format(ipipeif, cfg, fse->pad, &format, fse->which); - fse->max_width = format.width; - fse->max_height = format.height; - - return 0; -} - -/* - * __ipipeif_get_format() - helper function for getting ipipeif format - * @ipipeif: pointer to ipipeif private structure. - * @cfg: V4L2 subdev pad config - * @pad: pad number. - * @which: wanted subdev format. - * - */ -static struct v4l2_mbus_framefmt * -__ipipeif_get_format(struct vpfe_ipipeif_device *ipipeif, - struct v4l2_subdev_pad_config *cfg, unsigned int pad, - enum v4l2_subdev_format_whence which) -{ - if (which == V4L2_SUBDEV_FORMAT_TRY) - return v4l2_subdev_get_try_format(&ipipeif->subdev, cfg, pad); - - return &ipipeif->formats[pad]; -} - -/* - * ipipeif_set_format() - Handle set format by pads subdev method - * @sd: pointer to v4l2 subdev structure - * @cfg: V4L2 subdev pad config - * @fmt: pointer to v4l2 subdev format structure - * return -EINVAL or zero on success - */ -static int -ipipeif_set_format(struct v4l2_subdev *sd, struct v4l2_subdev_pad_config *cfg, - struct v4l2_subdev_format *fmt) -{ - struct vpfe_ipipeif_device *ipipeif = v4l2_get_subdevdata(sd); - struct v4l2_mbus_framefmt *format; - - format = __ipipeif_get_format(ipipeif, cfg, fmt->pad, fmt->which); - if (!format) - return -EINVAL; - - ipipeif_try_format(ipipeif, cfg, fmt->pad, &fmt->format, fmt->which); - *format = fmt->format; - - if (fmt->which == V4L2_SUBDEV_FORMAT_TRY) - return 0; - - if (fmt->pad == IPIPEIF_PAD_SINK && - ipipeif->input != IPIPEIF_INPUT_NONE) - ipipeif->formats[fmt->pad] = fmt->format; - else if (fmt->pad == IPIPEIF_PAD_SOURCE && - ipipeif->output != IPIPEIF_OUTPUT_NONE) - ipipeif->formats[fmt->pad] = fmt->format; - else - return -EINVAL; - - return 0; -} - -static void ipipeif_set_default_config(struct vpfe_ipipeif_device *ipipeif) -{ -#define WIDTH_I 640 -#define HEIGHT_I 480 - - const struct ipipeif_params ipipeif_defaults = { - .clock_select = IPIPEIF_SDRAM_CLK, - .ppln = WIDTH_I + 8, - .lpfr = HEIGHT_I + 10, - .rsz = 16, /* resize ratio 16/rsz */ - .decimation = IPIPEIF_DECIMATION_OFF, - .avg_filter = IPIPEIF_AVG_OFF, - .if_5_1 = { - .clk_div = { - .m = 1, /* clock = sdram clock * (m/n) */ - .n = 6 - }, - .clip = 4095, - }, - }; - memcpy(&ipipeif->config, &ipipeif_defaults, - sizeof(struct ipipeif_params)); -} - -/* - * ipipeif_init_formats() - Initialize formats on all pads - * @sd: VPFE ipipeif V4L2 subdevice - * @fh: V4L2 subdev file handle - * - * Initialize all pad formats with default values. Try formats are initialized - * on the file handle. - */ -static int -ipipeif_init_formats(struct v4l2_subdev *sd, struct v4l2_subdev_fh *fh) -{ - struct vpfe_ipipeif_device *ipipeif = v4l2_get_subdevdata(sd); - struct v4l2_subdev_format format; - - memset(&format, 0, sizeof(format)); - format.pad = IPIPEIF_PAD_SINK; - format.which = V4L2_SUBDEV_FORMAT_TRY; - format.format.code = MEDIA_BUS_FMT_SGRBG12_1X12; - format.format.width = IPIPE_MAX_OUTPUT_WIDTH_A; - format.format.height = IPIPE_MAX_OUTPUT_HEIGHT_A; - ipipeif_set_format(sd, fh->pad, &format); - - memset(&format, 0, sizeof(format)); - format.pad = IPIPEIF_PAD_SOURCE; - format.which = V4L2_SUBDEV_FORMAT_TRY; - format.format.code = MEDIA_BUS_FMT_UYVY8_2X8; - format.format.width = IPIPE_MAX_OUTPUT_WIDTH_A; - format.format.height = IPIPE_MAX_OUTPUT_HEIGHT_A; - ipipeif_set_format(sd, fh->pad, &format); - - ipipeif_set_default_config(ipipeif); - - return 0; -} - -/* - * ipipeif_video_in_queue() - ipipeif video in queue - * @vpfe_dev: vpfe device pointer - * @addr: buffer address - */ -static int -ipipeif_video_in_queue(struct vpfe_device *vpfe_dev, unsigned long addr) -{ - struct vpfe_ipipeif_device *ipipeif = &vpfe_dev->vpfe_ipipeif; - void __iomem *ipipeif_base_addr = ipipeif->ipipeif_base_addr; - unsigned int adofs; - u32 val; - - if (ipipeif->input != IPIPEIF_INPUT_MEMORY) - return -EINVAL; - - switch (ipipeif->formats[IPIPEIF_PAD_SINK].code) { - case MEDIA_BUS_FMT_Y8_1X8: - case MEDIA_BUS_FMT_UV8_1X8: - case MEDIA_BUS_FMT_YDYUYDYV8_1X16: - adofs = ipipeif->formats[IPIPEIF_PAD_SINK].width; - break; - - default: - adofs = ipipeif->formats[IPIPEIF_PAD_SINK].width << 1; - break; - } - - /* adjust the line len to be a multiple of 32 */ - adofs += 31; - adofs &= ~0x1f; - val = (adofs >> 5) & IPIPEIF_ADOFS_LSB_MASK; - ipipeif_write(val, ipipeif_base_addr, IPIPEIF_ADOFS); - - /* lower sixteen bit */ - val = (addr >> IPIPEIF_ADDRL_SHIFT) & IPIPEIF_ADDRL_MASK; - ipipeif_write(val, ipipeif_base_addr, IPIPEIF_ADDRL); - - /* upper next seven bit */ - val = (addr >> IPIPEIF_ADDRU_SHIFT) & IPIPEIF_ADDRU_MASK; - ipipeif_write(val, ipipeif_base_addr, IPIPEIF_ADDRU); - - return 0; -} - -/* subdev core operations */ -static const struct v4l2_subdev_core_ops ipipeif_v4l2_core_ops = { - .ioctl = ipipeif_ioctl, -}; - -static const struct v4l2_ctrl_ops ipipeif_ctrl_ops = { - .s_ctrl = ipipeif_s_ctrl, -}; - -static const struct v4l2_ctrl_config vpfe_ipipeif_dpcm_pred = { - .ops = &ipipeif_ctrl_ops, - .id = VPFE_CID_DPCM_PREDICTOR, - .name = "DPCM Predictor", - .type = V4L2_CTRL_TYPE_INTEGER, - .min = 0, - .max = 1, - .step = 1, - .def = 0, -}; - -/* subdev file operations */ -static const struct v4l2_subdev_internal_ops ipipeif_v4l2_internal_ops = { - .open = ipipeif_init_formats, -}; - -/* subdev video operations */ -static const struct v4l2_subdev_video_ops ipipeif_v4l2_video_ops = { - .s_stream = ipipeif_set_stream, -}; - -/* subdev pad operations */ -static const struct v4l2_subdev_pad_ops ipipeif_v4l2_pad_ops = { - .enum_mbus_code = ipipeif_enum_mbus_code, - .enum_frame_size = ipipeif_enum_frame_size, - .get_fmt = ipipeif_get_format, - .set_fmt = ipipeif_set_format, -}; - -/* subdev operations */ -static const struct v4l2_subdev_ops ipipeif_v4l2_ops = { - .core = &ipipeif_v4l2_core_ops, - .video = &ipipeif_v4l2_video_ops, - .pad = &ipipeif_v4l2_pad_ops, -}; - -static const struct vpfe_video_operations video_in_ops = { - .queue = ipipeif_video_in_queue, -}; - -static int -ipipeif_link_setup(struct media_entity *entity, const struct media_pad *local, - const struct media_pad *remote, u32 flags) -{ - struct v4l2_subdev *sd = media_entity_to_v4l2_subdev(entity); - struct vpfe_ipipeif_device *ipipeif = v4l2_get_subdevdata(sd); - struct vpfe_device *vpfe = to_vpfe_device(ipipeif); - unsigned int index = local->index; - - /* FIXME: this is actually a hack! */ - if (is_media_entity_v4l2_subdev(remote->entity)) - index |= 2 << 16; - - switch (index) { - case IPIPEIF_PAD_SINK: - /* Single shot mode */ - if (!(flags & MEDIA_LNK_FL_ENABLED)) { - ipipeif->input = IPIPEIF_INPUT_NONE; - break; - } - ipipeif->input = IPIPEIF_INPUT_MEMORY; - break; - - case IPIPEIF_PAD_SINK | 2 << 16: - /* read from isif */ - if (!(flags & MEDIA_LNK_FL_ENABLED)) { - ipipeif->input = IPIPEIF_INPUT_NONE; - break; - } - if (ipipeif->input != IPIPEIF_INPUT_NONE) - return -EBUSY; - - ipipeif->input = IPIPEIF_INPUT_ISIF; - break; - - case IPIPEIF_PAD_SOURCE | 2 << 16: - if (!(flags & MEDIA_LNK_FL_ENABLED)) { - ipipeif->output = IPIPEIF_OUTPUT_NONE; - break; - } - if (remote->entity == &vpfe->vpfe_ipipe.subdev.entity) - /* connencted to ipipe */ - ipipeif->output = IPIPEIF_OUTPUT_IPIPE; - else if (remote->entity == &vpfe->vpfe_resizer.crop_resizer.subdev.entity) - /* connected to resizer */ - ipipeif->output = IPIPEIF_OUTPUT_RESIZER; - else - return -EINVAL; - break; - - default: - return -EINVAL; - } - - return 0; -} - -static const struct media_entity_operations ipipeif_media_ops = { - .link_setup = ipipeif_link_setup, -}; - -/* - * vpfe_ipipeif_unregister_entities() - Unregister entity - * @ipipeif - pointer to ipipeif subdevice structure. - */ -void vpfe_ipipeif_unregister_entities(struct vpfe_ipipeif_device *ipipeif) -{ - /* unregister video device */ - vpfe_video_unregister(&ipipeif->video_in); - - /* unregister subdev */ - v4l2_device_unregister_subdev(&ipipeif->subdev); - /* cleanup entity */ - media_entity_cleanup(&ipipeif->subdev.entity); -} - -int -vpfe_ipipeif_register_entities(struct vpfe_ipipeif_device *ipipeif, - struct v4l2_device *vdev) -{ - struct vpfe_device *vpfe_dev = to_vpfe_device(ipipeif); - unsigned int flags; - int ret; - - /* Register the subdev */ - ret = v4l2_device_register_subdev(vdev, &ipipeif->subdev); - if (ret < 0) - return ret; - - ret = vpfe_video_register(&ipipeif->video_in, vdev); - if (ret) { - pr_err("Failed to register ipipeif video-in device\n"); - goto fail; - } - ipipeif->video_in.vpfe_dev = vpfe_dev; - - flags = 0; - ret = media_create_pad_link(&ipipeif->video_in.video_dev.entity, 0, - &ipipeif->subdev.entity, 0, flags); - if (ret < 0) - goto fail; - - return 0; -fail: - v4l2_device_unregister_subdev(&ipipeif->subdev); - - return ret; -} - -#define IPIPEIF_GAIN_HIGH 0x3ff -#define IPIPEIF_DEFAULT_GAIN 0x200 - -int vpfe_ipipeif_init(struct vpfe_ipipeif_device *ipipeif, - struct platform_device *pdev) -{ - struct v4l2_subdev *sd = &ipipeif->subdev; - struct media_pad *pads = &ipipeif->pads[0]; - struct media_entity *me = &sd->entity; - static resource_size_t res_len; - struct resource *res; - int ret; - - res = platform_get_resource(pdev, IORESOURCE_MEM, 3); - if (!res) - return -ENOENT; - - res_len = resource_size(res); - res = request_mem_region(res->start, res_len, res->name); - if (!res) - return -EBUSY; - - ipipeif->ipipeif_base_addr = ioremap_nocache(res->start, res_len); - if (!ipipeif->ipipeif_base_addr) { - ret = -EBUSY; - goto fail; - } - - v4l2_subdev_init(sd, &ipipeif_v4l2_ops); - - sd->internal_ops = &ipipeif_v4l2_internal_ops; - strscpy(sd->name, "DAVINCI IPIPEIF", sizeof(sd->name)); - sd->grp_id = 1 << 16; /* group ID for davinci subdevs */ - - v4l2_set_subdevdata(sd, ipipeif); - - sd->flags |= V4L2_SUBDEV_FL_HAS_EVENTS | V4L2_SUBDEV_FL_HAS_DEVNODE; - pads[IPIPEIF_PAD_SINK].flags = MEDIA_PAD_FL_SINK; - pads[IPIPEIF_PAD_SOURCE].flags = MEDIA_PAD_FL_SOURCE; - ipipeif->input = IPIPEIF_INPUT_NONE; - ipipeif->output = IPIPEIF_OUTPUT_NONE; - me->ops = &ipipeif_media_ops; - - ret = media_entity_pads_init(me, IPIPEIF_NUM_PADS, pads); - if (ret) - goto fail; - - v4l2_ctrl_handler_init(&ipipeif->ctrls, 2); - v4l2_ctrl_new_std(&ipipeif->ctrls, &ipipeif_ctrl_ops, - V4L2_CID_GAIN, 0, - IPIPEIF_GAIN_HIGH, 1, IPIPEIF_DEFAULT_GAIN); - v4l2_ctrl_new_custom(&ipipeif->ctrls, &vpfe_ipipeif_dpcm_pred, NULL); - v4l2_ctrl_handler_setup(&ipipeif->ctrls); - sd->ctrl_handler = &ipipeif->ctrls; - - ipipeif->video_in.ops = &video_in_ops; - ipipeif->video_in.type = V4L2_BUF_TYPE_VIDEO_OUTPUT; - ret = vpfe_video_init(&ipipeif->video_in, "IPIPEIF"); - if (ret) { - pr_err("Failed to init IPIPEIF video-in device\n"); - goto fail; - } - ipipeif_set_default_config(ipipeif); - return 0; -fail: - release_mem_region(res->start, res_len); - return ret; -} - -void -vpfe_ipipeif_cleanup(struct vpfe_ipipeif_device *ipipeif, - struct platform_device *pdev) -{ - struct resource *res; - - v4l2_ctrl_handler_free(&ipipeif->ctrls); - iounmap(ipipeif->ipipeif_base_addr); - res = platform_get_resource(pdev, IORESOURCE_MEM, 3); - if (res) - release_mem_region(res->start, resource_size(res)); - -} |