From: Manjunath Hadli Date: Wed, 28 Nov 2012 05:17:55 +0000 (-0300) Subject: [media] davinci: vpfe: dm365: resizer driver based on media framework X-Git-Tag: firefly_0821_release~3680^2~275^2~559 X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=45e46b3bbe187a1bfc8f44c8d7ceaf851f0f4219;p=firefly-linux-kernel-4.4.55.git [media] davinci: vpfe: dm365: resizer driver based on media framework Add the video resizer driver with the v4l2 media controller framework which takes care of resizing the video frames with both up-scaling downscaling facility. The driver supports both continuous and single shot operations.The driver supports resizer as a subdevice and a media entity. It has support for 2 resizers - resizerA and resizerB. Signed-off-by: Manjunath Hadli Signed-off-by: Lad, Prabhakar Acked-by: Laurent Pinchart Acked-by: Sakari Ailus Acked-by: Hans Verkuil Signed-off-by: Mauro Carvalho Chehab --- diff --git a/drivers/staging/media/davinci_vpfe/dm365_resizer.c b/drivers/staging/media/davinci_vpfe/dm365_resizer.c new file mode 100644 index 000000000000..9cb0262b9b33 --- /dev/null +++ b/drivers/staging/media/davinci_vpfe/dm365_resizer.c @@ -0,0 +1,1999 @@ +/* + * 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. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + * + * Contributors: + * Manjunath Hadli + * Prabhakar Lad + * + * + * Resizer allows upscaling or downscaling a image to a desired + * resolution. There are 2 resizer modules. both operating on the + * same input image, but can have different output resolution. + */ + +#include "dm365_ipipe_hw.h" +#include "dm365_resizer.h" + +#define MIN_IN_WIDTH 32 +#define MIN_IN_HEIGHT 32 +#define MAX_IN_WIDTH 4095 +#define MAX_IN_HEIGHT 4095 +#define MIN_OUT_WIDTH 16 +#define MIN_OUT_HEIGHT 2 + +static const unsigned int resizer_input_formats[] = { + V4L2_MBUS_FMT_UYVY8_2X8, + V4L2_MBUS_FMT_Y8_1X8, + V4L2_MBUS_FMT_UV8_1X8, + V4L2_MBUS_FMT_SGRBG12_1X12, +}; + +static const unsigned int resizer_output_formats[] = { + V4L2_MBUS_FMT_UYVY8_2X8, + V4L2_MBUS_FMT_Y8_1X8, + V4L2_MBUS_FMT_UV8_1X8, + V4L2_MBUS_FMT_YDYUYDYV8_1X16, + V4L2_MBUS_FMT_SGRBG12_1X12, +}; + +/* resizer_calculate_line_length() - This function calculates the line length of + * various image planes at the input and + * output. + */ +static void +resizer_calculate_line_length(enum v4l2_mbus_pixelcode pix, int width, + int height, int *line_len, int *line_len_c) +{ + *line_len = 0; + *line_len_c = 0; + + if (pix == V4L2_MBUS_FMT_UYVY8_2X8 || + pix == V4L2_MBUS_FMT_SGRBG12_1X12) { + *line_len = width << 1; + } else if (pix == V4L2_MBUS_FMT_Y8_1X8 || + pix == V4L2_MBUS_FMT_UV8_1X8) { + *line_len = width; + *line_len_c = width; + } else { + /* YUV 420 */ + /* round width to upper 32 byte boundary */ + *line_len = width; + *line_len_c = width; + } + /* adjust the line len to be a multiple of 32 */ + *line_len += 31; + *line_len &= ~0x1f; + *line_len_c += 31; + *line_len_c &= ~0x1f; +} + +static inline int +resizer_validate_output_image_format(struct device *dev, + struct v4l2_mbus_framefmt *format, + int *in_line_len, int *in_line_len_c) +{ + if (format->code != V4L2_MBUS_FMT_UYVY8_2X8 && + format->code != V4L2_MBUS_FMT_Y8_1X8 && + format->code != V4L2_MBUS_FMT_UV8_1X8 && + format->code != V4L2_MBUS_FMT_YDYUYDYV8_1X16 && + format->code != V4L2_MBUS_FMT_SGRBG12_1X12) { + dev_err(dev, "Invalid Mbus format, %d\n", format->code); + return -EINVAL; + } + if (!format->width || !format->height) { + dev_err(dev, "invalid width or height\n"); + return -EINVAL; + } + resizer_calculate_line_length(format->code, format->width, + format->height, in_line_len, in_line_len_c); + return 0; +} + +static void +resizer_configure_passthru(struct vpfe_resizer_device *resizer, int bypass) +{ + struct resizer_params *param = &resizer->config; + + param->rsz_rsc_param[RSZ_A].cen = DISABLE; + param->rsz_rsc_param[RSZ_A].yen = DISABLE; + param->rsz_rsc_param[RSZ_A].v_phs_y = 0; + param->rsz_rsc_param[RSZ_A].v_phs_c = 0; + param->rsz_rsc_param[RSZ_A].v_dif = 256; + param->rsz_rsc_param[RSZ_A].v_lpf_int_y = 0; + param->rsz_rsc_param[RSZ_A].v_lpf_int_c = 0; + param->rsz_rsc_param[RSZ_A].h_phs = 0; + param->rsz_rsc_param[RSZ_A].h_dif = 256; + param->rsz_rsc_param[RSZ_A].h_lpf_int_y = 0; + param->rsz_rsc_param[RSZ_A].h_lpf_int_c = 0; + param->rsz_rsc_param[RSZ_A].dscale_en = DISABLE; + param->rsz2rgb[RSZ_A].rgb_en = DISABLE; + param->rsz_en[RSZ_A] = ENABLE; + param->rsz_en[RSZ_B] = DISABLE; + if (bypass) { + param->rsz_rsc_param[RSZ_A].i_vps = 0; + param->rsz_rsc_param[RSZ_A].i_hps = 0; + /* Raw Bypass */ + param->rsz_common.passthrough = BYPASS_ON; + } +} + +static void +configure_resizer_out_params(struct vpfe_resizer_device *resizer, int index, + void *output_spec, unsigned char partial, + unsigned flag) +{ + struct resizer_params *param = &resizer->config; + struct v4l2_mbus_framefmt *outformat; + struct vpfe_rsz_output_spec *output; + + if (index == RSZ_A && + resizer->resizer_a.output == RESIZER_OUTPUT_NONE) { + param->rsz_en[index] = DISABLE; + return; + } + if (index == RSZ_B && + resizer->resizer_b.output == RESIZER_OUTPUT_NONE) { + param->rsz_en[index] = DISABLE; + return; + } + output = (struct vpfe_rsz_output_spec *)output_spec; + param->rsz_en[index] = ENABLE; + if (partial) { + param->rsz_rsc_param[index].h_flip = output->h_flip; + param->rsz_rsc_param[index].v_flip = output->v_flip; + param->rsz_rsc_param[index].v_typ_y = output->v_typ_y; + param->rsz_rsc_param[index].v_typ_c = output->v_typ_c; + param->rsz_rsc_param[index].v_lpf_int_y = + output->v_lpf_int_y; + param->rsz_rsc_param[index].v_lpf_int_c = + output->v_lpf_int_c; + param->rsz_rsc_param[index].h_typ_y = output->h_typ_y; + param->rsz_rsc_param[index].h_typ_c = output->h_typ_c; + param->rsz_rsc_param[index].h_lpf_int_y = + output->h_lpf_int_y; + param->rsz_rsc_param[index].h_lpf_int_c = + output->h_lpf_int_c; + param->rsz_rsc_param[index].dscale_en = + output->en_down_scale; + param->rsz_rsc_param[index].h_dscale_ave_sz = + output->h_dscale_ave_sz; + param->rsz_rsc_param[index].v_dscale_ave_sz = + output->v_dscale_ave_sz; + param->ext_mem_param[index].user_y_ofst = + (output->user_y_ofst + 31) & ~0x1f; + param->ext_mem_param[index].user_c_ofst = + (output->user_c_ofst + 31) & ~0x1f; + return; + } + + if (index == RSZ_A) + outformat = &resizer->resizer_a.formats[RESIZER_PAD_SOURCE]; + else + outformat = &resizer->resizer_b.formats[RESIZER_PAD_SOURCE]; + param->rsz_rsc_param[index].o_vsz = outformat->height - 1; + param->rsz_rsc_param[index].o_hsz = outformat->width - 1; + param->ext_mem_param[index].rsz_sdr_ptr_s_y = output->vst_y; + param->ext_mem_param[index].rsz_sdr_ptr_e_y = outformat->height; + param->ext_mem_param[index].rsz_sdr_ptr_s_c = output->vst_c; + param->ext_mem_param[index].rsz_sdr_ptr_e_c = outformat->height; + + if (!flag) + return; + /* update common parameters */ + param->rsz_rsc_param[index].h_flip = output->h_flip; + param->rsz_rsc_param[index].v_flip = output->v_flip; + param->rsz_rsc_param[index].v_typ_y = output->v_typ_y; + param->rsz_rsc_param[index].v_typ_c = output->v_typ_c; + param->rsz_rsc_param[index].v_lpf_int_y = output->v_lpf_int_y; + param->rsz_rsc_param[index].v_lpf_int_c = output->v_lpf_int_c; + param->rsz_rsc_param[index].h_typ_y = output->h_typ_y; + param->rsz_rsc_param[index].h_typ_c = output->h_typ_c; + param->rsz_rsc_param[index].h_lpf_int_y = output->h_lpf_int_y; + param->rsz_rsc_param[index].h_lpf_int_c = output->h_lpf_int_c; + param->rsz_rsc_param[index].dscale_en = output->en_down_scale; + param->rsz_rsc_param[index].h_dscale_ave_sz = output->h_dscale_ave_sz; + param->rsz_rsc_param[index].v_dscale_ave_sz = output->h_dscale_ave_sz; + param->ext_mem_param[index].user_y_ofst = + (output->user_y_ofst + 31) & ~0x1f; + param->ext_mem_param[index].user_c_ofst = + (output->user_c_ofst + 31) & ~0x1f; +} + +/* + * resizer_calculate_resize_ratios() - Calculates resize ratio for resizer + * A or B. This is called after setting + * the input size or output size. + * @resizer: Pointer to VPFE resizer subdevice. + * @index: index RSZ_A-resizer-A RSZ_B-resizer-B. + */ +void +resizer_calculate_resize_ratios(struct vpfe_resizer_device *resizer, int index) +{ + struct resizer_params *param = &resizer->config; + struct v4l2_mbus_framefmt *informat, *outformat; + + informat = &resizer->crop_resizer.formats[RESIZER_CROP_PAD_SINK]; + + if (index == RSZ_A) + outformat = &resizer->resizer_a.formats[RESIZER_PAD_SOURCE]; + else + outformat = &resizer->resizer_b.formats[RESIZER_PAD_SOURCE]; + + if (outformat->field != V4L2_FIELD_INTERLACED) + param->rsz_rsc_param[index].v_dif = + ((informat->height) * 256) / (outformat->height); + else + param->rsz_rsc_param[index].v_dif = + ((informat->height >> 1) * 256) / (outformat->height); + param->rsz_rsc_param[index].h_dif = + ((informat->width) * 256) / (outformat->width); +} + +void +static resizer_enable_422_420_conversion(struct resizer_params *param, + int index, bool en) +{ + param->rsz_rsc_param[index].cen = en; + param->rsz_rsc_param[index].yen = en; +} + +/* resizer_calculate_sdram_offsets() - This function calculates the offsets from + * start of buffer for the C plane when + * output format is YUV420SP. It also + * calculates the offsets from the start of + * the buffer when the image is flipped + * vertically or horizontally for ycbcr/y/c + * planes. + * @resizer: Pointer to resizer subdevice. + * @index: index RSZ_A-resizer-A RSZ_B-resizer-B. + */ +static int +resizer_calculate_sdram_offsets(struct vpfe_resizer_device *resizer, int index) +{ + struct resizer_params *param = &resizer->config; + struct v4l2_mbus_framefmt *outformat; + int bytesperpixel = 2; + int image_height; + int image_width; + int yuv_420 = 0; + int offset = 0; + + if (index == RSZ_A) + outformat = &resizer->resizer_a.formats[RESIZER_PAD_SOURCE]; + else + outformat = &resizer->resizer_b.formats[RESIZER_PAD_SOURCE]; + + image_height = outformat->height + 1; + image_width = outformat->width + 1; + param->ext_mem_param[index].c_offset = 0; + param->ext_mem_param[index].flip_ofst_y = 0; + param->ext_mem_param[index].flip_ofst_c = 0; + if (outformat->code == V4L2_MBUS_FMT_YDYUYDYV8_1X16) { + /* YUV 420 */ + yuv_420 = 1; + bytesperpixel = 1; + } + + if (param->rsz_rsc_param[index].h_flip) + /* width * bytesperpixel - 1 */ + offset = (image_width * bytesperpixel) - 1; + if (param->rsz_rsc_param[index].v_flip) + offset += (image_height - 1) * + param->ext_mem_param[index].rsz_sdr_oft_y; + param->ext_mem_param[index].flip_ofst_y = offset; + if (!yuv_420) + return 0; + offset = 0; + /* half height for c-plane */ + if (param->rsz_rsc_param[index].h_flip) + /* width * bytesperpixel - 1 */ + offset = image_width - 1; + if (param->rsz_rsc_param[index].v_flip) + offset += (((image_height >> 1) - 1) * + param->ext_mem_param[index].rsz_sdr_oft_c); + param->ext_mem_param[index].flip_ofst_c = offset; + param->ext_mem_param[index].c_offset = + param->ext_mem_param[index].rsz_sdr_oft_y * image_height; + return 0; +} + +int resizer_configure_output_win(struct vpfe_resizer_device *resizer) +{ + struct resizer_params *param = &resizer->config; + struct vpfe_rsz_output_spec output_specs; + struct v4l2_mbus_framefmt *outformat; + int line_len_c; + int line_len; + int ret; + + outformat = &resizer->resizer_a.formats[RESIZER_PAD_SOURCE]; + + output_specs.vst_y = param->user_config.vst; + if (outformat->code == V4L2_MBUS_FMT_YDYUYDYV8_1X16) + output_specs.vst_c = param->user_config.vst; + + configure_resizer_out_params(resizer, RSZ_A, &output_specs, 0, 0); + resizer_calculate_line_length(outformat->code, + param->rsz_rsc_param[0].o_hsz + 1, + param->rsz_rsc_param[0].o_vsz + 1, + &line_len, &line_len_c); + param->ext_mem_param[0].rsz_sdr_oft_y = line_len; + param->ext_mem_param[0].rsz_sdr_oft_c = line_len_c; + resizer_calculate_resize_ratios(resizer, RSZ_A); + if (param->rsz_en[RSZ_B]) + resizer_calculate_resize_ratios(resizer, RSZ_B); + + if (outformat->code == V4L2_MBUS_FMT_YDYUYDYV8_1X16) + resizer_enable_422_420_conversion(param, RSZ_A, ENABLE); + else + resizer_enable_422_420_conversion(param, RSZ_A, DISABLE); + + ret = resizer_calculate_sdram_offsets(resizer, RSZ_A); + if (!ret && param->rsz_en[RSZ_B]) + ret = resizer_calculate_sdram_offsets(resizer, RSZ_B); + + if (ret) + pr_err("Error in calculating sdram offsets\n"); + return ret; +} + +static int +resizer_calculate_down_scale_f_div_param(struct device *dev, + int input_width, int output_width, + struct resizer_scale_param *param) +{ + /* rsz = R, input_width = H, output width = h in the equation */ + unsigned int two_power; + unsigned int upper_h1; + unsigned int upper_h2; + unsigned int val1; + unsigned int val; + unsigned int rsz; + unsigned int h1; + unsigned int h2; + unsigned int o; + unsigned int n; + + upper_h1 = input_width >> 1; + n = param->h_dscale_ave_sz; + /* 2 ^ (scale+1) */ + two_power = 1 << (n + 1); + upper_h1 = (upper_h1 >> (n + 1)) << (n + 1); + upper_h2 = input_width - upper_h1; + if (upper_h2 % two_power) { + dev_err(dev, "frame halves to be a multiple of 2 power n+1\n"); + return -EINVAL; + } + two_power = 1 << n; + rsz = (input_width << 8) / output_width; + val = rsz * two_power; + val = ((upper_h1 << 8) / val) + 1; + if (!(val % 2)) { + h1 = val; + } else { + val = upper_h1 << 8; + val >>= n + 1; + val -= rsz >> 1; + val /= rsz << 1; + val <<= 1; + val += 2; + h1 = val; + } + o = 10 + (two_power << 2); + if (((input_width << 7) / rsz) % 2) + o += (((CEIL(rsz, 1024)) << 1) << n); + h2 = output_width - h1; + /* phi */ + val = (h1 * rsz) - (((upper_h1 - (o - 10)) / two_power) << 8); + /* skip */ + val1 = ((val - 1024) >> 9) << 1; + param->f_div.num_passes = MAX_PASSES; + param->f_div.pass[0].o_hsz = h1 - 1; + param->f_div.pass[0].i_hps = 0; + param->f_div.pass[0].h_phs = 0; + param->f_div.pass[0].src_hps = 0; + param->f_div.pass[0].src_hsz = upper_h1 + o; + param->f_div.pass[1].o_hsz = h2 - 1; + param->f_div.pass[1].i_hps = 10 + (val1 * two_power); + param->f_div.pass[1].h_phs = (val - (val1 << 8)); + param->f_div.pass[1].src_hps = upper_h1 - o; + param->f_div.pass[1].src_hsz = upper_h2 + o; + + return 0; +} + +static int +resizer_configure_common_in_params(struct vpfe_resizer_device *resizer) +{ + struct vpfe_device *vpfe_dev = to_vpfe_device(resizer); + struct resizer_params *param = &resizer->config; + struct vpfe_rsz_config_params *user_config; + struct v4l2_mbus_framefmt *informat; + + informat = &resizer->crop_resizer.formats[RESIZER_CROP_PAD_SINK]; + user_config = &resizer->config.user_config; + param->rsz_common.vps = param->user_config.vst; + param->rsz_common.hps = param->user_config.hst; + + if (vpfe_ipipeif_decimation_enabled(vpfe_dev)) + param->rsz_common.hsz = (((informat->width - 1) * + IPIPEIF_RSZ_CONST) / vpfe_ipipeif_get_rsz(vpfe_dev)); + else + param->rsz_common.hsz = informat->width - 1; + + if (informat->field == V4L2_FIELD_INTERLACED) + param->rsz_common.vsz = (informat->height - 1) >> 1; + else + param->rsz_common.vsz = informat->height - 1; + + param->rsz_common.raw_flip = 0; + + if (resizer->crop_resizer.input == RESIZER_CROP_INPUT_IPIPEIF) + param->rsz_common.source = IPIPEIF_DATA; + else + param->rsz_common.source = IPIPE_DATA; + + switch (informat->code) { + case V4L2_MBUS_FMT_UYVY8_2X8: + param->rsz_common.src_img_fmt = RSZ_IMG_422; + param->rsz_common.raw_flip = 0; + break; + + case V4L2_MBUS_FMT_Y8_1X8: + param->rsz_common.src_img_fmt = RSZ_IMG_420; + /* Select y */ + param->rsz_common.y_c = 0; + param->rsz_common.raw_flip = 0; + break; + + case V4L2_MBUS_FMT_UV8_1X8: + param->rsz_common.src_img_fmt = RSZ_IMG_420; + /* Select y */ + param->rsz_common.y_c = 1; + param->rsz_common.raw_flip = 0; + break; + + case V4L2_MBUS_FMT_SGRBG12_1X12: + param->rsz_common.raw_flip = 1; + break; + + default: + param->rsz_common.src_img_fmt = RSZ_IMG_422; + param->rsz_common.source = IPIPE_DATA; + } + + param->rsz_common.yuv_y_min = user_config->yuv_y_min; + param->rsz_common.yuv_y_max = user_config->yuv_y_max; + param->rsz_common.yuv_c_min = user_config->yuv_c_min; + param->rsz_common.yuv_c_max = user_config->yuv_c_max; + param->rsz_common.out_chr_pos = user_config->out_chr_pos; + param->rsz_common.rsz_seq_crv = user_config->chroma_sample_even; + + return 0; +} +static int +resizer_configure_in_continious_mode(struct vpfe_resizer_device *resizer) +{ + struct device *dev = resizer->crop_resizer.subdev.v4l2_dev->dev; + struct resizer_params *param = &resizer->config; + struct vpfe_rsz_config_params *cont_config; + int line_len_c; + int line_len; + int ret; + + if (resizer->resizer_a.output != RESIZER_OUPUT_MEMORY) { + dev_err(dev, "enable resizer - Resizer-A\n"); + return -EINVAL; + } + + cont_config = &resizer->config.user_config; + param->rsz_en[RSZ_A] = ENABLE; + configure_resizer_out_params(resizer, RSZ_A, + &cont_config->output1, 1, 0); + param->rsz_en[RSZ_B] = DISABLE; + param->oper_mode = RESIZER_MODE_CONTINIOUS; + + if (resizer->resizer_b.output == RESIZER_OUPUT_MEMORY) { + struct v4l2_mbus_framefmt *outformat2; + + param->rsz_en[RSZ_B] = ENABLE; + outformat2 = &resizer->resizer_b.formats[RESIZER_PAD_SOURCE]; + ret = resizer_validate_output_image_format(dev, outformat2, + &line_len, &line_len_c); + if (ret) + return ret; + param->ext_mem_param[RSZ_B].rsz_sdr_oft_y = line_len; + param->ext_mem_param[RSZ_B].rsz_sdr_oft_c = line_len_c; + configure_resizer_out_params(resizer, RSZ_B, + &cont_config->output2, 0, 1); + if (outformat2->code == V4L2_MBUS_FMT_YDYUYDYV8_1X16) + resizer_enable_422_420_conversion(param, + RSZ_B, ENABLE); + else + resizer_enable_422_420_conversion(param, + RSZ_B, DISABLE); + } + resizer_configure_common_in_params(resizer); + ret = resizer_configure_output_win(resizer); + if (ret) + return ret; + + param->rsz_common.passthrough = cont_config->bypass; + if (cont_config->bypass) + resizer_configure_passthru(resizer, 1); + + return 0; +} + +static inline int +resizer_validate_input_image_format(struct device *dev, + enum v4l2_mbus_pixelcode pix, + int width, int height, int *line_len) +{ + int val; + + if (pix != V4L2_MBUS_FMT_UYVY8_2X8 && + pix != V4L2_MBUS_FMT_Y8_1X8 && + pix != V4L2_MBUS_FMT_UV8_1X8 && + pix != V4L2_MBUS_FMT_SGRBG12_1X12) { + dev_err(dev, + "resizer validate output: pix format not supported, %d\n", pix); + return -EINVAL; + } + + if (!width || !height) { + dev_err(dev, + "resizer validate input: invalid width or height\n"); + return -EINVAL; + } + + if (pix == V4L2_MBUS_FMT_UV8_1X8) + resizer_calculate_line_length(pix, width, + height, &val, line_len); + else + resizer_calculate_line_length(pix, width, + height, line_len, &val); + + return 0; +} + +static int +resizer_validate_decimation(struct device *dev, enum ipipeif_decimation dec_en, + unsigned char rsz, unsigned char frame_div_mode_en, + int width) +{ + if (dec_en && frame_div_mode_en) { + dev_err(dev, + "dec_en & frame_div_mode_en can not enabled simultaneously\n"); + return -EINVAL; + } + + if (frame_div_mode_en) { + dev_err(dev, "frame_div_mode mode not supported\n"); + return -EINVAL; + } + + if (!dec_en) + return 0; + + if (width <= VPFE_IPIPE_MAX_INPUT_WIDTH) { + dev_err(dev, + "image width to be more than %d for decimation\n", + VPFE_IPIPE_MAX_INPUT_WIDTH); + return -EINVAL; + } + + if (rsz < IPIPEIF_RSZ_MIN || rsz > IPIPEIF_RSZ_MAX) { + dev_err(dev, "rsz range is %d to %d\n", + IPIPEIF_RSZ_MIN, IPIPEIF_RSZ_MAX); + return -EINVAL; + } + + return 0; +} + +/* resizer_calculate_normal_f_div_param() - Algorithm to calculate the frame + * division parameters for resizer. + * in normal mode. + */ +static int +resizer_calculate_normal_f_div_param(struct device *dev, int input_width, + int output_width, struct resizer_scale_param *param) +{ + /* rsz = R, input_width = H, output width = h in the equation */ + unsigned int val1; + unsigned int rsz; + unsigned int val; + unsigned int h1; + unsigned int h2; + unsigned int o; + + if (output_width > input_width) { + dev_err(dev, "frame div mode is used for scale down only\n"); + return -EINVAL; + } + + rsz = (input_width << 8) / output_width; + val = rsz << 1; + val = ((input_width << 8) / val) + 1; + o = 14; + if (!(val % 2)) { + h1 = val; + } else { + val = (input_width << 7); + val -= rsz >> 1; + val /= rsz << 1; + val <<= 1; + val += 2; + o += ((CEIL(rsz, 1024)) << 1); + h1 = val; + } + h2 = output_width - h1; + /* phi */ + val = (h1 * rsz) - (((input_width >> 1) - o) << 8); + /* skip */ + val1 = ((val - 1024) >> 9) << 1; + param->f_div.num_passes = MAX_PASSES; + param->f_div.pass[0].o_hsz = h1 - 1; + param->f_div.pass[0].i_hps = 0; + param->f_div.pass[0].h_phs = 0; + param->f_div.pass[0].src_hps = 0; + param->f_div.pass[0].src_hsz = (input_width >> 2) + o; + param->f_div.pass[1].o_hsz = h2 - 1; + param->f_div.pass[1].i_hps = val1; + param->f_div.pass[1].h_phs = (val - (val1 << 8)); + param->f_div.pass[1].src_hps = (input_width >> 2) - o; + param->f_div.pass[1].src_hsz = (input_width >> 2) + o; + + return 0; +} + +static int +resizer_configure_in_single_shot_mode(struct vpfe_resizer_device *resizer) +{ + struct vpfe_rsz_config_params *config = &resizer->config.user_config; + struct device *dev = resizer->crop_resizer.subdev.v4l2_dev->dev; + struct vpfe_device *vpfe_dev = to_vpfe_device(resizer); + struct v4l2_mbus_framefmt *outformat1, *outformat2; + struct resizer_params *param = &resizer->config; + struct v4l2_mbus_framefmt *informat; + int decimation; + int line_len_c; + int line_len; + int rsz; + int ret; + + informat = &resizer->crop_resizer.formats[RESIZER_CROP_PAD_SINK]; + outformat1 = &resizer->resizer_a.formats[RESIZER_PAD_SOURCE]; + outformat2 = &resizer->resizer_b.formats[RESIZER_PAD_SOURCE]; + + decimation = vpfe_ipipeif_decimation_enabled(vpfe_dev); + rsz = vpfe_ipipeif_get_rsz(vpfe_dev); + if (decimation && param->user_config.frame_div_mode_en) { + dev_err(dev, + "dec_en & frame_div_mode_en cannot enabled simultaneously\n"); + return -EINVAL; + } + + ret = resizer_validate_decimation(dev, decimation, rsz, + param->user_config.frame_div_mode_en, informat->width); + if (ret) + return -EINVAL; + + ret = resizer_validate_input_image_format(dev, informat->code, + informat->width, informat->height, &line_len); + if (ret) + return -EINVAL; + + if (resizer->resizer_a.output != RESIZER_OUTPUT_NONE) { + param->rsz_en[RSZ_A] = ENABLE; + ret = resizer_validate_output_image_format(dev, outformat1, + &line_len, &line_len_c); + if (ret) + return ret; + param->ext_mem_param[RSZ_A].rsz_sdr_oft_y = line_len; + param->ext_mem_param[RSZ_A].rsz_sdr_oft_c = line_len_c; + configure_resizer_out_params(resizer, RSZ_A, + ¶m->user_config.output1, 0, 1); + + if (outformat1->code == V4L2_MBUS_FMT_SGRBG12_1X12) + param->rsz_common.raw_flip = 1; + else + param->rsz_common.raw_flip = 0; + + if (outformat1->code == V4L2_MBUS_FMT_YDYUYDYV8_1X16) + resizer_enable_422_420_conversion(param, + RSZ_A, ENABLE); + else + resizer_enable_422_420_conversion(param, + RSZ_A, DISABLE); + } + + if (resizer->resizer_b.output != RESIZER_OUTPUT_NONE) { + param->rsz_en[RSZ_B] = ENABLE; + ret = resizer_validate_output_image_format(dev, outformat2, + &line_len, &line_len_c); + if (ret) + return ret; + param->ext_mem_param[RSZ_B].rsz_sdr_oft_y = line_len; + param->ext_mem_param[RSZ_B].rsz_sdr_oft_c = line_len_c; + configure_resizer_out_params(resizer, RSZ_B, + ¶m->user_config.output2, 0, 1); + if (outformat2->code == V4L2_MBUS_FMT_YDYUYDYV8_1X16) + resizer_enable_422_420_conversion(param, + RSZ_B, ENABLE); + else + resizer_enable_422_420_conversion(param, + RSZ_B, DISABLE); + } + + resizer_configure_common_in_params(resizer); + if (resizer->resizer_a.output != RESIZER_OUTPUT_NONE) { + resizer_calculate_resize_ratios(resizer, RSZ_A); + resizer_calculate_sdram_offsets(resizer, RSZ_A); + /* Overriding resize ratio calculation */ + if (informat->code == V4L2_MBUS_FMT_UV8_1X8) { + param->rsz_rsc_param[RSZ_A].v_dif = + (((informat->height + 1) * 2) * 256) / + (param->rsz_rsc_param[RSZ_A].o_vsz + 1); + } + } + + if (resizer->resizer_b.output != RESIZER_OUTPUT_NONE) { + resizer_calculate_resize_ratios(resizer, RSZ_B); + resizer_calculate_sdram_offsets(resizer, RSZ_B); + /* Overriding resize ratio calculation */ + if (informat->code == V4L2_MBUS_FMT_UV8_1X8) { + param->rsz_rsc_param[RSZ_B].v_dif = + (((informat->height + 1) * 2) * 256) / + (param->rsz_rsc_param[RSZ_B].o_vsz + 1); + } + } + if (param->user_config.frame_div_mode_en && + param->rsz_en[RSZ_A]) { + if (!param->rsz_rsc_param[RSZ_A].dscale_en) + ret = resizer_calculate_normal_f_div_param(dev, + informat->width, + param->rsz_rsc_param[RSZ_A].o_vsz + 1, + ¶m->rsz_rsc_param[RSZ_A]); + else + ret = resizer_calculate_down_scale_f_div_param(dev, + informat->width, + param->rsz_rsc_param[RSZ_A].o_vsz + 1, + ¶m->rsz_rsc_param[RSZ_A]); + if (ret) + return -EINVAL; + } + if (param->user_config.frame_div_mode_en && + param->rsz_en[RSZ_B]) { + if (!param->rsz_rsc_param[RSZ_B].dscale_en) + ret = resizer_calculate_normal_f_div_param(dev, + informat->width, + param->rsz_rsc_param[RSZ_B].o_vsz + 1, + ¶m->rsz_rsc_param[RSZ_B]); + else + ret = resizer_calculate_down_scale_f_div_param(dev, + informat->width, + param->rsz_rsc_param[RSZ_B].o_vsz + 1, + ¶m->rsz_rsc_param[RSZ_B]); + if (ret) + return -EINVAL; + } + param->rsz_common.passthrough = config->bypass; + if (config->bypass) + resizer_configure_passthru(resizer, 1); + return 0; +} + +static void +resizer_set_defualt_configuration(struct vpfe_resizer_device *resizer) +{ +#define WIDTH_I 640 +#define HEIGHT_I 480 +#define WIDTH_O 640 +#define HEIGHT_O 480 + const struct resizer_params rsz_default_config = { + .oper_mode = RESIZER_MODE_ONE_SHOT, + .rsz_common = { + .vsz = HEIGHT_I - 1, + .hsz = WIDTH_I - 1, + .src_img_fmt = RSZ_IMG_422, + .raw_flip = 1, /* flip preserve Raw format */ + .source = IPIPE_DATA, + .passthrough = BYPASS_OFF, + .yuv_y_max = 255, + .yuv_c_max = 255, + .rsz_seq_crv = DISABLE, + .out_chr_pos = VPFE_IPIPE_YUV422_CHR_POS_COSITE, + }, + .rsz_rsc_param = { + { + .h_flip = DISABLE, + .v_flip = DISABLE, + .cen = DISABLE, + .yen = DISABLE, + .o_vsz = HEIGHT_O - 1, + .o_hsz = WIDTH_O - 1, + .v_dif = 256, + .v_typ_y = VPFE_RSZ_INTP_CUBIC, + .h_typ_c = VPFE_RSZ_INTP_CUBIC, + .h_dif = 256, + .h_typ_y = VPFE_RSZ_INTP_CUBIC, + .h_typ_c = VPFE_RSZ_INTP_CUBIC, + .h_dscale_ave_sz = + VPFE_IPIPE_DWN_SCALE_1_OVER_2, + .v_dscale_ave_sz = + VPFE_IPIPE_DWN_SCALE_1_OVER_2, + }, + { + .h_flip = DISABLE, + .v_flip = DISABLE, + .cen = DISABLE, + .yen = DISABLE, + .o_vsz = HEIGHT_O - 1, + .o_hsz = WIDTH_O - 1, + .v_dif = 256, + .v_typ_y = VPFE_RSZ_INTP_CUBIC, + .h_typ_c = VPFE_RSZ_INTP_CUBIC, + .h_dif = 256, + .h_typ_y = VPFE_RSZ_INTP_CUBIC, + .h_typ_c = VPFE_RSZ_INTP_CUBIC, + .h_dscale_ave_sz = + VPFE_IPIPE_DWN_SCALE_1_OVER_2, + .v_dscale_ave_sz = + VPFE_IPIPE_DWN_SCALE_1_OVER_2, + }, + }, + .rsz2rgb = { + { + .rgb_en = DISABLE + }, + { + .rgb_en = DISABLE + } + }, + .ext_mem_param = { + { + .rsz_sdr_oft_y = WIDTH_O << 1, + .rsz_sdr_ptr_e_y = HEIGHT_O, + .rsz_sdr_oft_c = WIDTH_O, + .rsz_sdr_ptr_e_c = HEIGHT_O >> 1, + }, + { + .rsz_sdr_oft_y = WIDTH_O << 1, + .rsz_sdr_ptr_e_y = HEIGHT_O, + .rsz_sdr_oft_c = WIDTH_O, + .rsz_sdr_ptr_e_c = HEIGHT_O, + }, + }, + .rsz_en[0] = ENABLE, + .rsz_en[1] = DISABLE, + .user_config = { + .output1 = { + .v_typ_y = VPFE_RSZ_INTP_CUBIC, + .v_typ_c = VPFE_RSZ_INTP_CUBIC, + .h_typ_y = VPFE_RSZ_INTP_CUBIC, + .h_typ_c = VPFE_RSZ_INTP_CUBIC, + .h_dscale_ave_sz = + VPFE_IPIPE_DWN_SCALE_1_OVER_2, + .v_dscale_ave_sz = + VPFE_IPIPE_DWN_SCALE_1_OVER_2, + }, + .output2 = { + .v_typ_y = VPFE_RSZ_INTP_CUBIC, + .v_typ_c = VPFE_RSZ_INTP_CUBIC, + .h_typ_y = VPFE_RSZ_INTP_CUBIC, + .h_typ_c = VPFE_RSZ_INTP_CUBIC, + .h_dscale_ave_sz = + VPFE_IPIPE_DWN_SCALE_1_OVER_2, + .v_dscale_ave_sz = + VPFE_IPIPE_DWN_SCALE_1_OVER_2, + }, + .yuv_y_max = 255, + .yuv_c_max = 255, + .out_chr_pos = VPFE_IPIPE_YUV422_CHR_POS_COSITE, + }, + }; + memset(&resizer->config, 0, sizeof(struct resizer_params)); + memcpy(&resizer->config, &rsz_default_config, + sizeof(struct resizer_params)); +} + +/* + * resizer_set_configuration() - set resizer config + * @resizer: vpfe resizer device pointer. + * @chan_config: resizer channel configuration. + */ +static int +resizer_set_configuration(struct vpfe_resizer_device *resizer, + struct vpfe_rsz_config *chan_config) +{ + if (!chan_config->config) + resizer_set_defualt_configuration(resizer); + else + if (copy_from_user(&resizer->config.user_config, + chan_config->config, sizeof(struct vpfe_rsz_config_params))) + return -EFAULT; + + return 0; +} + +/* + * resizer_get_configuration() - get resizer config + * @resizer: vpfe resizer device pointer. + * @channel: image processor logical channel. + * @chan_config: resizer channel configuration. + */ +static int +resizer_get_configuration(struct vpfe_resizer_device *resizer, + struct vpfe_rsz_config *chan_config) +{ + struct device *dev = resizer->crop_resizer.subdev.v4l2_dev->dev; + + if (!chan_config->config) { + dev_err(dev, "Resizer channel invalid pointer\n"); + return -EINVAL; + } + + if (copy_to_user((void *)chan_config->config, + (void *)&resizer->config.user_config, + sizeof(struct vpfe_rsz_config_params))) { + dev_err(dev, "resizer_get_configuration: Error in copy to user\n"); + return -EFAULT; + } + + return 0; +} + +/* + * VPFE video operations + */ + +/* + * resizer_a_video_out_queue() - RESIZER-A video out queue + * @vpfe_dev: vpfe device pointer. + * @addr: buffer address. + */ +static int resizer_a_video_out_queue(struct vpfe_device *vpfe_dev, + unsigned long addr) +{ + struct vpfe_resizer_device *resizer = &vpfe_dev->vpfe_resizer; + + return resizer_set_outaddr(resizer->base_addr, + &resizer->config, RSZ_A, addr); +} + +/* + * resizer_b_video_out_queue() - RESIZER-B video out queue + * @vpfe_dev: vpfe device pointer. + * @addr: buffer address. + */ +static int resizer_b_video_out_queue(struct vpfe_device *vpfe_dev, + unsigned long addr) +{ + struct vpfe_resizer_device *resizer = &vpfe_dev->vpfe_resizer; + + return resizer_set_outaddr(resizer->base_addr, + &resizer->config, RSZ_B, addr); +} + +static const struct vpfe_video_operations resizer_a_video_ops = { + .queue = resizer_a_video_out_queue, +}; + +static const struct vpfe_video_operations resizer_b_video_ops = { + .queue = resizer_b_video_out_queue, +}; + +static void resizer_enable(struct vpfe_resizer_device *resizer, int en) +{ + struct vpfe_device *vpfe_dev = to_vpfe_device(resizer); + u16 ipipeif_sink = vpfe_dev->vpfe_ipipeif.input; + unsigned char val; + + if (resizer->crop_resizer.input == RESIZER_CROP_INPUT_NONE) + return; + + if (resizer->crop_resizer.input == RESIZER_CROP_INPUT_IPIPEIF && + ipipeif_sink == IPIPEIF_INPUT_MEMORY) { + do { + val = regr_rsz(resizer->base_addr, RSZ_SRC_EN); + } while (val); + + if (resizer->resizer_a.output != RESIZER_OUTPUT_NONE) { + do { + val = regr_rsz(resizer->base_addr, RSZ_A); + } while (val); + } + if (resizer->resizer_b.output != RESIZER_OUTPUT_NONE) { + do { + val = regr_rsz(resizer->base_addr, RSZ_B); + } while (val); + } + } + if (resizer->resizer_a.output != RESIZER_OUTPUT_NONE) + rsz_enable(resizer->base_addr, RSZ_A, en); + + if (resizer->resizer_b.output != RESIZER_OUTPUT_NONE) + rsz_enable(resizer->base_addr, RSZ_B, en); +} + + +/* + * resizer_ss_isr() - resizer module single-shot buffer scheduling isr + * @resizer: vpfe resizer device pointer. + */ +static void resizer_ss_isr(struct vpfe_resizer_device *resizer) +{ + struct vpfe_video_device *video_out = &resizer->resizer_a.video_out; + struct vpfe_video_device *video_out2 = &resizer->resizer_b.video_out; + struct vpfe_device *vpfe_dev = to_vpfe_device(resizer); + struct vpfe_pipeline *pipe = &video_out->pipe; + u16 ipipeif_sink = vpfe_dev->vpfe_ipipeif.input; + u32 val; + + if (ipipeif_sink != IPIPEIF_INPUT_MEMORY) + return; + + if (resizer->resizer_a.output == RESIZER_OUPUT_MEMORY) { + val = vpss_dma_complete_interrupt(); + if (val != 0 && val != 2) + return; + } + + if (resizer->resizer_a.output == RESIZER_OUPUT_MEMORY) { + spin_lock(&video_out->dma_queue_lock); + vpfe_video_process_buffer_complete(video_out); + video_out->state = VPFE_VIDEO_BUFFER_NOT_QUEUED; + vpfe_video_schedule_next_buffer(video_out); + spin_unlock(&video_out->dma_queue_lock); + } + + /* If resizer B is enabled */ + if (pipe->output_num > 1 && resizer->resizer_b.output == + RESIZER_OUPUT_MEMORY) { + spin_lock(&video_out->dma_queue_lock); + vpfe_video_process_buffer_complete(video_out2); + video_out2->state = VPFE_VIDEO_BUFFER_NOT_QUEUED; + vpfe_video_schedule_next_buffer(video_out2); + spin_unlock(&video_out2->dma_queue_lock); + } + + /* start HW if buffers are queued */ + if (vpfe_video_is_pipe_ready(pipe) && + resizer->resizer_a.output == RESIZER_OUPUT_MEMORY) { + resizer_enable(resizer, 1); + vpfe_ipipe_enable(vpfe_dev, 1); + vpfe_ipipeif_enable(vpfe_dev); + } +} + +/* + * vpfe_resizer_buffer_isr() - resizer module buffer scheduling isr + * @resizer: vpfe resizer device pointer. + */ +void vpfe_resizer_buffer_isr(struct vpfe_resizer_device *resizer) +{ + struct vpfe_device *vpfe_dev = to_vpfe_device(resizer); + struct vpfe_video_device *video_out = &resizer->resizer_a.video_out; + struct vpfe_video_device *video_out2 = &resizer->resizer_b.video_out; + struct vpfe_pipeline *pipe = &resizer->resizer_a.video_out.pipe; + enum v4l2_field field; + int fid; + + if (!video_out->started) + return; + + if (resizer->crop_resizer.input == RESIZER_CROP_INPUT_NONE) + return; + + field = video_out->fmt.fmt.pix.field; + if (field == V4L2_FIELD_NONE) { + /* handle progressive frame capture */ + if (video_out->cur_frm != video_out->next_frm) { + vpfe_video_process_buffer_complete(video_out); + if (pipe->output_num > 1) + vpfe_video_process_buffer_complete(video_out2); + } + + video_out->skip_frame_count--; + if (!video_out->skip_frame_count) { + video_out->skip_frame_count = + video_out->skip_frame_count_init; + rsz_src_enable(resizer->base_addr, 1); + } else { + rsz_src_enable(resizer->base_addr, 0); + } + return; + } + + /* handle interlaced frame capture */ + fid = vpfe_isif_get_fid(vpfe_dev); + + /* switch the software maintained field id */ + video_out->field_id ^= 1; + if (fid == video_out->field_id) { + /* + * we are in-sync here,continue. + * One frame is just being captured. If the + * next frame is available, release the current + * frame and move on + */ + if (fid == 0 && video_out->cur_frm != video_out->next_frm) { + vpfe_video_process_buffer_complete(video_out); + if (pipe->output_num > 1) + vpfe_video_process_buffer_complete(video_out2); + } + } else if (fid == 0) { + /* + * out of sync. Recover from any hardware out-of-sync. + * May loose one frame + */ + video_out->field_id = fid; + } +} + +/* + * vpfe_resizer_dma_isr() - resizer module dma isr + * @resizer: vpfe resizer device pointer. + */ +void vpfe_resizer_dma_isr(struct vpfe_resizer_device *resizer) +{ + struct vpfe_video_device *video_out2 = &resizer->resizer_b.video_out; + struct vpfe_video_device *video_out = &resizer->resizer_a.video_out; + struct vpfe_device *vpfe_dev = to_vpfe_device(resizer); + struct vpfe_pipeline *pipe = &video_out->pipe; + int schedule_capture = 0; + enum v4l2_field field; + int fid; + + if (!video_out->started) + return; + + if (pipe->state == VPFE_PIPELINE_STREAM_SINGLESHOT) { + resizer_ss_isr(resizer); + return; + } + + field = video_out->fmt.fmt.pix.field; + if (field == V4L2_FIELD_NONE) { + if (!list_empty(&video_out->dma_queue) && + video_out->cur_frm == video_out->next_frm) + schedule_capture = 1; + } else { + fid = vpfe_isif_get_fid(vpfe_dev); + if (fid == video_out->field_id) { + /* we are in-sync here,continue */ + if (fid == 1 && !list_empty(&video_out->dma_queue) && + video_out->cur_frm == video_out->next_frm) + schedule_capture = 1; + } + } + + if (!schedule_capture) + return; + + spin_lock(&video_out->dma_queue_lock); + vpfe_video_schedule_next_buffer(video_out); + spin_unlock(&video_out->dma_queue_lock); + if (pipe->output_num > 1) { + spin_lock(&video_out2->dma_queue_lock); + vpfe_video_schedule_next_buffer(video_out2); + spin_unlock(&video_out2->dma_queue_lock); + } +} + +/* + * V4L2 subdev operations + */ + +/* + * resizer_ioctl() - Handle resizer module private ioctl's + * @sd: pointer to v4l2 subdev structure + * @cmd: configuration command + * @arg: configuration argument + */ +static long resizer_ioctl(struct v4l2_subdev *sd, unsigned int cmd, void *arg) +{ + struct vpfe_resizer_device *resizer = v4l2_get_subdevdata(sd); + struct device *dev = resizer->crop_resizer.subdev.v4l2_dev->dev; + struct vpfe_rsz_config *user_config; + int ret = -ENOIOCTLCMD; + + if (&resizer->crop_resizer.subdev != sd) + return ret; + + switch (cmd) { + case VIDIOC_VPFE_RSZ_S_CONFIG: + user_config = (struct vpfe_rsz_config *)arg; + ret = resizer_set_configuration(resizer, user_config); + break; + + case VIDIOC_VPFE_RSZ_G_CONFIG: + user_config = (struct vpfe_rsz_config *)arg; + if (!user_config->config) { + dev_err(dev, "error in VIDIOC_VPFE_RSZ_G_CONFIG\n"); + return -EINVAL; + } + ret = resizer_get_configuration(resizer, user_config); + break; + } + return ret; +} + +static int resizer_do_hw_setup(struct vpfe_resizer_device *resizer) +{ + struct vpfe_device *vpfe_dev = to_vpfe_device(resizer); + u16 ipipeif_sink = vpfe_dev->vpfe_ipipeif.input; + u16 ipipeif_source = vpfe_dev->vpfe_ipipeif.output; + struct resizer_params *param = &resizer->config; + int ret = 0; + + if (resizer->resizer_a.output == RESIZER_OUPUT_MEMORY || + resizer->resizer_b.output == RESIZER_OUPUT_MEMORY) { + if (ipipeif_sink == IPIPEIF_INPUT_MEMORY && + ipipeif_source == IPIPEIF_OUTPUT_RESIZER) + ret = resizer_configure_in_single_shot_mode(resizer); + else + ret = resizer_configure_in_continious_mode(resizer); + if (ret) + return ret; + ret = config_rsz_hw(resizer, param); + } + return ret; +} + +/* + * resizer_set_stream() - Enable/Disable streaming on resizer subdev + * @sd: pointer to v4l2 subdev structure + * @enable: 1 == Enable, 0 == Disable + */ +static int resizer_set_stream(struct v4l2_subdev *sd, int enable) +{ + struct vpfe_resizer_device *resizer = v4l2_get_subdevdata(sd); + + if (&resizer->crop_resizer.subdev != sd) + return 0; + + if (resizer->resizer_a.output != RESIZER_OUPUT_MEMORY) + return 0; + + switch (enable) { + case 1: + if (resizer_do_hw_setup(resizer) < 0) + return -EINVAL; + resizer_enable(resizer, enable); + break; + + case 0: + resizer_enable(resizer, enable); + break; + } + + return 0; +} + +/* + * __resizer_get_format() - helper function for getting resizer format + * @sd: pointer to subdev. + * @fh: V4L2 subdev file handle. + * @pad: pad number. + * @which: wanted subdev format. + * Retun wanted mbus frame format. + */ +static struct v4l2_mbus_framefmt * +__resizer_get_format(struct v4l2_subdev *sd, struct v4l2_subdev_fh *fh, + unsigned int pad, enum v4l2_subdev_format_whence which) +{ + struct vpfe_resizer_device *resizer = v4l2_get_subdevdata(sd); + + if (which == V4L2_SUBDEV_FORMAT_TRY) + return v4l2_subdev_get_try_format(fh, pad); + if (&resizer->crop_resizer.subdev == sd) + return &resizer->crop_resizer.formats[pad]; + if (&resizer->resizer_a.subdev == sd) + return &resizer->resizer_a.formats[pad]; + if (&resizer->resizer_b.subdev == sd) + return &resizer->resizer_b.formats[pad]; + return NULL; +} + +/* + * resizer_try_format() - Handle try format by pad subdev method + * @sd: pointer to subdev. + * @fh: V4L2 subdev file handle. + * @pad: pad num. + * @fmt: pointer to v4l2 format structure. + * @which: wanted subdev format. + */ +static void +resizer_try_format(struct v4l2_subdev *sd, struct v4l2_subdev_fh *fh, + unsigned int pad, struct v4l2_mbus_framefmt *fmt, + enum v4l2_subdev_format_whence which) +{ + struct vpfe_resizer_device *resizer = v4l2_get_subdevdata(sd); + unsigned int max_out_height; + unsigned int max_out_width; + unsigned int i; + + if ((&resizer->resizer_a.subdev == sd && pad == RESIZER_PAD_SINK) || + (&resizer->resizer_b.subdev == sd && pad == RESIZER_PAD_SINK) || + (&resizer->crop_resizer.subdev == sd && + (pad == RESIZER_CROP_PAD_SOURCE || + pad == RESIZER_CROP_PAD_SOURCE2 || pad == RESIZER_CROP_PAD_SINK))) { + for (i = 0; i < ARRAY_SIZE(resizer_input_formats); i++) { + if (fmt->code == resizer_input_formats[i]) + break; + } + /* If not found, use UYVY as default */ + if (i >= ARRAY_SIZE(resizer_input_formats)) + fmt->code = V4L2_MBUS_FMT_UYVY8_2X8; + + fmt->width = clamp_t(u32, fmt->width, MIN_IN_WIDTH, + MAX_IN_WIDTH); + fmt->height = clamp_t(u32, fmt->height, MIN_IN_HEIGHT, + MAX_IN_HEIGHT); + } else if (&resizer->resizer_a.subdev == sd && + pad == RESIZER_PAD_SOURCE) { + max_out_width = IPIPE_MAX_OUTPUT_WIDTH_A; + max_out_height = IPIPE_MAX_OUTPUT_HEIGHT_A; + + for (i = 0; i < ARRAY_SIZE(resizer_output_formats); i++) { + if (fmt->code == resizer_output_formats[i]) + break; + } + /* If not found, use UYVY as default */ + if (i >= ARRAY_SIZE(resizer_output_formats)) + fmt->code = V4L2_MBUS_FMT_UYVY8_2X8; + + fmt->width = clamp_t(u32, fmt->width, MIN_OUT_WIDTH, + max_out_width); + fmt->width &= ~15; + fmt->height = clamp_t(u32, fmt->height, MIN_OUT_HEIGHT, + max_out_height); + } else if (&resizer->resizer_b.subdev == sd && + pad == RESIZER_PAD_SOURCE) { + max_out_width = IPIPE_MAX_OUTPUT_WIDTH_B; + max_out_height = IPIPE_MAX_OUTPUT_HEIGHT_B; + + for (i = 0; i < ARRAY_SIZE(resizer_output_formats); i++) { + if (fmt->code == resizer_output_formats[i]) + break; + } + /* If not found, use UYVY as default */ + if (i >= ARRAY_SIZE(resizer_output_formats)) + fmt->code = V4L2_MBUS_FMT_UYVY8_2X8; + + fmt->width = clamp_t(u32, fmt->width, MIN_OUT_WIDTH, + max_out_width); + fmt->width &= ~15; + fmt->height = clamp_t(u32, fmt->height, MIN_OUT_HEIGHT, + max_out_height); + } +} + +/* + * resizer_set_format() - Handle set format by pads subdev method + * @sd: pointer to v4l2 subdev structure + * @fh: V4L2 subdev file handle + * @fmt: pointer to v4l2 subdev format structure + * return -EINVAL or zero on success + */ +static int resizer_set_format(struct v4l2_subdev *sd, struct v4l2_subdev_fh *fh, + struct v4l2_subdev_format *fmt) +{ + struct vpfe_resizer_device *resizer = v4l2_get_subdevdata(sd); + struct v4l2_mbus_framefmt *format; + + format = __resizer_get_format(sd, fh, fmt->pad, fmt->which); + if (format == NULL) + return -EINVAL; + + resizer_try_format(sd, fh, fmt->pad, &fmt->format, fmt->which); + *format = fmt->format; + + if (fmt->which == V4L2_SUBDEV_FORMAT_TRY) + return 0; + + if (&resizer->crop_resizer.subdev == sd) { + if (fmt->pad == RESIZER_CROP_PAD_SINK) { + resizer->crop_resizer.formats[fmt->pad] = fmt->format; + } else if (fmt->pad == RESIZER_CROP_PAD_SOURCE && + resizer->crop_resizer.output == RESIZER_A) { + resizer->crop_resizer.formats[fmt->pad] = fmt->format; + resizer->crop_resizer. + formats[RESIZER_CROP_PAD_SOURCE2] = fmt->format; + } else if (fmt->pad == RESIZER_CROP_PAD_SOURCE2 && + resizer->crop_resizer.output2 == RESIZER_B) { + resizer->crop_resizer.formats[fmt->pad] = fmt->format; + resizer->crop_resizer. + formats[RESIZER_CROP_PAD_SOURCE] = fmt->format; + } else { + return -EINVAL; + } + } else if (&resizer->resizer_a.subdev == sd) { + if (fmt->pad == RESIZER_PAD_SINK) + resizer->resizer_a.formats[fmt->pad] = fmt->format; + else if (fmt->pad == RESIZER_PAD_SOURCE) + resizer->resizer_a.formats[fmt->pad] = fmt->format; + else + return -EINVAL; + } else if (&resizer->resizer_b.subdev == sd) { + if (fmt->pad == RESIZER_PAD_SINK) + resizer->resizer_b.formats[fmt->pad] = fmt->format; + else if (fmt->pad == RESIZER_PAD_SOURCE) + resizer->resizer_b.formats[fmt->pad] = fmt->format; + else + return -EINVAL; + } else { + return -EINVAL; + } + + return 0; +} + +/* + * resizer_get_format() - Retrieve the video format on a pad + * @sd: pointer to v4l2 subdev structure. + * @fh: V4L2 subdev file handle. + * @fmt: pointer to v4l2 subdev format structure + * return -EINVAL or zero on success + */ +static int resizer_get_format(struct v4l2_subdev *sd, struct v4l2_subdev_fh *fh, + struct v4l2_subdev_format *fmt) +{ + struct v4l2_mbus_framefmt *format; + + format = __resizer_get_format(sd, fh, fmt->pad, fmt->which); + if (format == NULL) + return -EINVAL; + + fmt->format = *format; + + return 0; +} + +/* + * resizer_enum_frame_size() - enum frame sizes on pads + * @sd: Pointer to subdevice. + * @fh: V4L2 subdev file handle. + * @code: pointer to v4l2_subdev_frame_size_enum structure. + */ +static int resizer_enum_frame_size(struct v4l2_subdev *sd, + struct v4l2_subdev_fh *fh, + struct v4l2_subdev_frame_size_enum *fse) +{ + struct v4l2_mbus_framefmt format; + + if (fse->index != 0) + return -EINVAL; + + format.code = fse->code; + format.width = 1; + format.height = 1; + resizer_try_format(sd, fh, fse->pad, &format, + V4L2_SUBDEV_FORMAT_TRY); + 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; + resizer_try_format(sd, fh, fse->pad, &format, + V4L2_SUBDEV_FORMAT_TRY); + fse->max_width = format.width; + fse->max_height = format.height; + + return 0; +} + +/* + * resizer_enum_mbus_code() - enum mbus codes for pads + * @sd: Pointer to subdevice. + * @fh: V4L2 subdev file handle + * @code: pointer to v4l2_subdev_mbus_code_enum structure + */ +static int resizer_enum_mbus_code(struct v4l2_subdev *sd, + struct v4l2_subdev_fh *fh, + struct v4l2_subdev_mbus_code_enum *code) +{ + if (code->pad == RESIZER_PAD_SINK) { + if (code->index >= ARRAY_SIZE(resizer_input_formats)) + return -EINVAL; + + code->code = resizer_input_formats[code->index]; + } else if (code->pad == RESIZER_PAD_SOURCE) { + if (code->index >= ARRAY_SIZE(resizer_output_formats)) + return -EINVAL; + + code->code = resizer_output_formats[code->index]; + } + + return 0; +} + +/* + * resizer_init_formats() - Initialize formats on all pads + * @sd: Pointer to subdevice. + * @fh: V4L2 subdev file handle. + * + * Initialize all pad formats with default values. If fh is not NULL, try + * formats are initialized on the file handle. Otherwise active formats are + * initialized on the device. + */ +static int resizer_init_formats(struct v4l2_subdev *sd, + struct v4l2_subdev_fh *fh) +{ + __u32 which = fh ? V4L2_SUBDEV_FORMAT_TRY : V4L2_SUBDEV_FORMAT_ACTIVE; + struct vpfe_resizer_device *resizer = v4l2_get_subdevdata(sd); + struct v4l2_subdev_format format; + + if (&resizer->crop_resizer.subdev == sd) { + memset(&format, 0, sizeof(format)); + format.pad = RESIZER_CROP_PAD_SINK; + format.which = which; + format.format.code = V4L2_MBUS_FMT_YUYV8_2X8; + format.format.width = MAX_IN_WIDTH; + format.format.height = MAX_IN_HEIGHT; + resizer_set_format(sd, fh, &format); + + memset(&format, 0, sizeof(format)); + format.pad = RESIZER_CROP_PAD_SOURCE; + format.which = which; + format.format.code = V4L2_MBUS_FMT_UYVY8_2X8; + format.format.width = MAX_IN_WIDTH; + format.format.height = MAX_IN_WIDTH; + resizer_set_format(sd, fh, &format); + + memset(&format, 0, sizeof(format)); + format.pad = RESIZER_CROP_PAD_SOURCE2; + format.which = which; + format.format.code = V4L2_MBUS_FMT_UYVY8_2X8; + format.format.width = MAX_IN_WIDTH; + format.format.height = MAX_IN_WIDTH; + resizer_set_format(sd, fh, &format); + } else if (&resizer->resizer_a.subdev == sd) { + memset(&format, 0, sizeof(format)); + format.pad = RESIZER_PAD_SINK; + format.which = which; + format.format.code = V4L2_MBUS_FMT_YUYV8_2X8; + format.format.width = MAX_IN_WIDTH; + format.format.height = MAX_IN_HEIGHT; + resizer_set_format(sd, fh, &format); + + memset(&format, 0, sizeof(format)); + format.pad = RESIZER_PAD_SOURCE; + format.which = which; + format.format.code = V4L2_MBUS_FMT_UYVY8_2X8; + format.format.width = IPIPE_MAX_OUTPUT_WIDTH_A; + format.format.height = IPIPE_MAX_OUTPUT_HEIGHT_A; + resizer_set_format(sd, fh, &format); + } else if (&resizer->resizer_b.subdev == sd) { + memset(&format, 0, sizeof(format)); + format.pad = RESIZER_PAD_SINK; + format.which = which; + format.format.code = V4L2_MBUS_FMT_YUYV8_2X8; + format.format.width = MAX_IN_WIDTH; + format.format.height = MAX_IN_HEIGHT; + resizer_set_format(sd, fh, &format); + + memset(&format, 0, sizeof(format)); + format.pad = RESIZER_PAD_SOURCE; + format.which = which; + format.format.code = V4L2_MBUS_FMT_UYVY8_2X8; + format.format.width = IPIPE_MAX_OUTPUT_WIDTH_B; + format.format.height = IPIPE_MAX_OUTPUT_HEIGHT_B; + resizer_set_format(sd, fh, &format); + } + + return 0; +} + +/* subdev core operations */ +static const struct v4l2_subdev_core_ops resizer_v4l2_core_ops = { + .ioctl = resizer_ioctl, +}; + +/* subdev internal operations */ +static const struct v4l2_subdev_internal_ops resizer_v4l2_internal_ops = { + .open = resizer_init_formats, +}; + +/* subdev video operations */ +static const struct v4l2_subdev_video_ops resizer_v4l2_video_ops = { + .s_stream = resizer_set_stream, +}; + +/* subdev pad operations */ +static const struct v4l2_subdev_pad_ops resizer_v4l2_pad_ops = { + .enum_mbus_code = resizer_enum_mbus_code, + .enum_frame_size = resizer_enum_frame_size, + .get_fmt = resizer_get_format, + .set_fmt = resizer_set_format, +}; + +/* subdev operations */ +static const struct v4l2_subdev_ops resizer_v4l2_ops = { + .core = &resizer_v4l2_core_ops, + .video = &resizer_v4l2_video_ops, + .pad = &resizer_v4l2_pad_ops, +}; + +/* + * Media entity operations + */ + +/* + * resizer_link_setup() - Setup resizer connections + * @entity: Pointer to media entity structure + * @local: Pointer to local pad array + * @remote: Pointer to remote pad array + * @flags: Link flags + * return -EINVAL or zero on success + */ +static int resizer_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_resizer_device *resizer = v4l2_get_subdevdata(sd); + struct vpfe_device *vpfe_dev = to_vpfe_device(resizer); + u16 ipipeif_source = vpfe_dev->vpfe_ipipeif.output; + u16 ipipe_source = vpfe_dev->vpfe_ipipe.output; + + if (&resizer->crop_resizer.subdev == sd) { + switch (local->index | media_entity_type(remote->entity)) { + case RESIZER_CROP_PAD_SINK | MEDIA_ENT_T_V4L2_SUBDEV: + if (!(flags & MEDIA_LNK_FL_ENABLED)) { + resizer->crop_resizer.input = + RESIZER_CROP_INPUT_NONE; + break; + } + + if (resizer->crop_resizer.input != + RESIZER_CROP_INPUT_NONE) + return -EBUSY; + if (ipipeif_source == IPIPEIF_OUTPUT_RESIZER) + resizer->crop_resizer.input = + RESIZER_CROP_INPUT_IPIPEIF; + else if (ipipe_source == IPIPE_OUTPUT_RESIZER) + resizer->crop_resizer.input = + RESIZER_CROP_INPUT_IPIPE; + else + return -EINVAL; + break; + + case RESIZER_CROP_PAD_SOURCE | MEDIA_ENT_T_V4L2_SUBDEV: + if (!(flags & MEDIA_LNK_FL_ENABLED)) { + resizer->crop_resizer.output = + RESIZER_CROP_OUTPUT_NONE; + break; + } + if (resizer->crop_resizer.output != + RESIZER_CROP_OUTPUT_NONE) + return -EBUSY; + resizer->crop_resizer.output = RESIZER_A; + break; + + case RESIZER_CROP_PAD_SOURCE2 | MEDIA_ENT_T_V4L2_SUBDEV: + if (!(flags & MEDIA_LNK_FL_ENABLED)) { + resizer->crop_resizer.output2 = + RESIZER_CROP_OUTPUT_NONE; + break; + } + if (resizer->crop_resizer.output2 != + RESIZER_CROP_OUTPUT_NONE) + return -EBUSY; + resizer->crop_resizer.output2 = RESIZER_B; + break; + + default: + return -EINVAL; + } + } else if (&resizer->resizer_a.subdev == sd) { + switch (local->index | media_entity_type(remote->entity)) { + case RESIZER_PAD_SINK | MEDIA_ENT_T_V4L2_SUBDEV: + if (!(flags & MEDIA_LNK_FL_ENABLED)) { + resizer->resizer_a.input = RESIZER_INPUT_NONE; + break; + } + if (resizer->resizer_a.input != RESIZER_INPUT_NONE) + return -EBUSY; + resizer->resizer_a.input = RESIZER_INPUT_CROP_RESIZER; + break; + + case RESIZER_PAD_SOURCE | MEDIA_ENT_T_DEVNODE: + if (!(flags & MEDIA_LNK_FL_ENABLED)) { + resizer->resizer_a.output = RESIZER_OUTPUT_NONE; + break; + } + if (resizer->resizer_a.output != RESIZER_OUTPUT_NONE) + return -EBUSY; + resizer->resizer_a.output = RESIZER_OUPUT_MEMORY; + break; + + default: + return -EINVAL; + } + } else if (&resizer->resizer_b.subdev == sd) { + switch (local->index | media_entity_type(remote->entity)) { + case RESIZER_PAD_SINK | MEDIA_ENT_T_V4L2_SUBDEV: + if (!(flags & MEDIA_LNK_FL_ENABLED)) { + resizer->resizer_b.input = RESIZER_INPUT_NONE; + break; + } + if (resizer->resizer_b.input != RESIZER_INPUT_NONE) + return -EBUSY; + resizer->resizer_b.input = RESIZER_INPUT_CROP_RESIZER; + break; + + case RESIZER_PAD_SOURCE | MEDIA_ENT_T_DEVNODE: + if (!(flags & MEDIA_LNK_FL_ENABLED)) { + resizer->resizer_b.output = RESIZER_OUTPUT_NONE; + break; + } + if (resizer->resizer_b.output != RESIZER_OUTPUT_NONE) + return -EBUSY; + resizer->resizer_b.output = RESIZER_OUPUT_MEMORY; + break; + + default: + return -EINVAL; + } + } else { + return -EINVAL; + } + + return 0; +} + +static const struct media_entity_operations resizer_media_ops = { + .link_setup = resizer_link_setup, +}; + +/* + * vpfe_resizer_unregister_entities() - Unregister entity + * @vpfe_rsz - pointer to resizer subdevice structure. + */ +void vpfe_resizer_unregister_entities(struct vpfe_resizer_device *vpfe_rsz) +{ + /* unregister video devices */ + vpfe_video_unregister(&vpfe_rsz->resizer_a.video_out); + vpfe_video_unregister(&vpfe_rsz->resizer_b.video_out); + + /* cleanup entity */ + media_entity_cleanup(&vpfe_rsz->crop_resizer.subdev.entity); + media_entity_cleanup(&vpfe_rsz->resizer_a.subdev.entity); + media_entity_cleanup(&vpfe_rsz->resizer_b.subdev.entity); + /* unregister subdev */ + v4l2_device_unregister_subdev(&vpfe_rsz->crop_resizer.subdev); + v4l2_device_unregister_subdev(&vpfe_rsz->resizer_a.subdev); + v4l2_device_unregister_subdev(&vpfe_rsz->resizer_b.subdev); +} + +/* + * vpfe_resizer_register_entities() - Register entity + * @resizer - pointer to resizer devive. + * @vdev: pointer to v4l2 device structure. + */ +int vpfe_resizer_register_entities(struct vpfe_resizer_device *resizer, + struct v4l2_device *vdev) +{ + struct vpfe_device *vpfe_dev = to_vpfe_device(resizer); + unsigned int flags = 0; + int ret; + + /* Register the crop resizer subdev */ + ret = v4l2_device_register_subdev(vdev, &resizer->crop_resizer.subdev); + if (ret < 0) { + pr_err("Failed to register crop resizer as v4l2-subdev\n"); + return ret; + } + /* Register Resizer-A subdev */ + ret = v4l2_device_register_subdev(vdev, &resizer->resizer_a.subdev); + if (ret < 0) { + pr_err("Failed to register resizer-a as v4l2-subdev\n"); + return ret; + } + /* Register Resizer-B subdev */ + ret = v4l2_device_register_subdev(vdev, &resizer->resizer_b.subdev); + if (ret < 0) { + pr_err("Failed to register resizer-b as v4l2-subdev\n"); + return ret; + } + /* Register video-out device for resizer-a */ + ret = vpfe_video_register(&resizer->resizer_a.video_out, vdev); + if (ret) { + pr_err("Failed to register RSZ-A video-out device\n"); + goto out_video_out2_register; + } + resizer->resizer_a.video_out.vpfe_dev = vpfe_dev; + + /* Register video-out device for resizer-b */ + ret = vpfe_video_register(&resizer->resizer_b.video_out, vdev); + if (ret) { + pr_err("Failed to register RSZ-B video-out device\n"); + goto out_video_out2_register; + } + resizer->resizer_b.video_out.vpfe_dev = vpfe_dev; + + /* create link between Resizer Crop----> Resizer A*/ + ret = media_entity_create_link(&resizer->crop_resizer.subdev.entity, 1, + &resizer->resizer_a.subdev.entity, + 0, flags); + if (ret < 0) + goto out_create_link; + + /* create link between Resizer Crop----> Resizer B*/ + ret = media_entity_create_link(&resizer->crop_resizer.subdev.entity, 2, + &resizer->resizer_b.subdev.entity, + 0, flags); + if (ret < 0) + goto out_create_link; + + /* create link between Resizer A ----> video out */ + ret = media_entity_create_link(&resizer->resizer_a.subdev.entity, 1, + &resizer->resizer_a.video_out.video_dev.entity, 0, flags); + if (ret < 0) + goto out_create_link; + + /* create link between Resizer B ----> video out */ + ret = media_entity_create_link(&resizer->resizer_b.subdev.entity, 1, + &resizer->resizer_b.video_out.video_dev.entity, 0, flags); + if (ret < 0) + goto out_create_link; + + return 0; + +out_create_link: + vpfe_video_unregister(&resizer->resizer_b.video_out); +out_video_out2_register: + vpfe_video_unregister(&resizer->resizer_a.video_out); + media_entity_cleanup(&resizer->crop_resizer.subdev.entity); + media_entity_cleanup(&resizer->resizer_a.subdev.entity); + media_entity_cleanup(&resizer->resizer_b.subdev.entity); + v4l2_device_unregister_subdev(&resizer->crop_resizer.subdev); + v4l2_device_unregister_subdev(&resizer->resizer_a.subdev); + v4l2_device_unregister_subdev(&resizer->resizer_b.subdev); + return ret; +} + +/* + * vpfe_resizer_init() - resizer device initialization. + * @vpfe_rsz - pointer to resizer device + * @pdev: platform device pointer. + */ +int vpfe_resizer_init(struct vpfe_resizer_device *vpfe_rsz, + struct platform_device *pdev) +{ + struct v4l2_subdev *sd = &vpfe_rsz->crop_resizer.subdev; + struct media_pad *pads = &vpfe_rsz->crop_resizer.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, 5); + if (!res) + return -ENOENT; + + res_len = resource_size(res); + res = request_mem_region(res->start, res_len, res->name); + if (!res) + return -EBUSY; + + vpfe_rsz->base_addr = ioremap_nocache(res->start, res_len); + if (!vpfe_rsz->base_addr) + return -EBUSY; + + v4l2_subdev_init(sd, &resizer_v4l2_ops); + sd->internal_ops = &resizer_v4l2_internal_ops; + strlcpy(sd->name, "DAVINCI RESIZER CROP", sizeof(sd->name)); + sd->grp_id = 1 << 16; /* group ID for davinci subdevs */ + v4l2_set_subdevdata(sd, vpfe_rsz); + sd->flags |= V4L2_SUBDEV_FL_HAS_DEVNODE; + + pads[RESIZER_CROP_PAD_SINK].flags = MEDIA_PAD_FL_SINK; + pads[RESIZER_CROP_PAD_SOURCE].flags = MEDIA_PAD_FL_SOURCE; + pads[RESIZER_CROP_PAD_SOURCE2].flags = MEDIA_PAD_FL_SOURCE; + + vpfe_rsz->crop_resizer.input = RESIZER_CROP_INPUT_NONE; + vpfe_rsz->crop_resizer.output = RESIZER_CROP_OUTPUT_NONE; + vpfe_rsz->crop_resizer.output2 = RESIZER_CROP_OUTPUT_NONE; + vpfe_rsz->crop_resizer.rsz_device = vpfe_rsz; + me->ops = &resizer_media_ops; + ret = media_entity_init(me, RESIZER_CROP_PADS_NUM, pads, 0); + if (ret) + return ret; + + sd = &vpfe_rsz->resizer_a.subdev; + pads = &vpfe_rsz->resizer_a.pads[0]; + me = &sd->entity; + + v4l2_subdev_init(sd, &resizer_v4l2_ops); + sd->internal_ops = &resizer_v4l2_internal_ops; + strlcpy(sd->name, "DAVINCI RESIZER A", sizeof(sd->name)); + sd->grp_id = 1 << 16; /* group ID for davinci subdevs */ + v4l2_set_subdevdata(sd, vpfe_rsz); + sd->flags |= V4L2_SUBDEV_FL_HAS_DEVNODE; + + pads[RESIZER_PAD_SINK].flags = MEDIA_PAD_FL_SINK; + pads[RESIZER_PAD_SOURCE].flags = MEDIA_PAD_FL_SOURCE; + + vpfe_rsz->resizer_a.input = RESIZER_INPUT_NONE; + vpfe_rsz->resizer_a.output = RESIZER_OUTPUT_NONE; + vpfe_rsz->resizer_a.rsz_device = vpfe_rsz; + me->ops = &resizer_media_ops; + ret = media_entity_init(me, RESIZER_PADS_NUM, pads, 0); + if (ret) + return ret; + + sd = &vpfe_rsz->resizer_b.subdev; + pads = &vpfe_rsz->resizer_b.pads[0]; + me = &sd->entity; + + v4l2_subdev_init(sd, &resizer_v4l2_ops); + sd->internal_ops = &resizer_v4l2_internal_ops; + strlcpy(sd->name, "DAVINCI RESIZER B", sizeof(sd->name)); + sd->grp_id = 1 << 16; /* group ID for davinci subdevs */ + v4l2_set_subdevdata(sd, vpfe_rsz); + sd->flags |= V4L2_SUBDEV_FL_HAS_DEVNODE; + + pads[RESIZER_PAD_SINK].flags = MEDIA_PAD_FL_SINK; + pads[RESIZER_PAD_SOURCE].flags = MEDIA_PAD_FL_SOURCE; + + vpfe_rsz->resizer_b.input = RESIZER_INPUT_NONE; + vpfe_rsz->resizer_b.output = RESIZER_OUTPUT_NONE; + vpfe_rsz->resizer_b.rsz_device = vpfe_rsz; + me->ops = &resizer_media_ops; + ret = media_entity_init(me, RESIZER_PADS_NUM, pads, 0); + if (ret) + return ret; + + vpfe_rsz->resizer_a.video_out.ops = &resizer_a_video_ops; + vpfe_rsz->resizer_a.video_out.type = V4L2_BUF_TYPE_VIDEO_CAPTURE; + ret = vpfe_video_init(&vpfe_rsz->resizer_a.video_out, "RSZ-A"); + if (ret) { + pr_err("Failed to init RSZ video-out device\n"); + return ret; + } + vpfe_rsz->resizer_b.video_out.ops = &resizer_b_video_ops; + vpfe_rsz->resizer_b.video_out.type = V4L2_BUF_TYPE_VIDEO_CAPTURE; + ret = vpfe_video_init(&vpfe_rsz->resizer_b.video_out, "RSZ-B"); + if (ret) { + pr_err("Failed to init RSZ video-out2 device\n"); + return ret; + } + memset(&vpfe_rsz->config, 0, sizeof(struct resizer_params)); + + return 0; +} + +void +vpfe_resizer_cleanup(struct vpfe_resizer_device *vpfe_rsz, + struct platform_device *pdev) +{ + struct resource *res; + + iounmap(vpfe_rsz->base_addr); + res = platform_get_resource(pdev, IORESOURCE_MEM, 5); + if (res) + release_mem_region(res->start, + res->end - res->start + 1); +} diff --git a/drivers/staging/media/davinci_vpfe/dm365_resizer.h b/drivers/staging/media/davinci_vpfe/dm365_resizer.h new file mode 100644 index 000000000000..59a79422b914 --- /dev/null +++ b/drivers/staging/media/davinci_vpfe/dm365_resizer.h @@ -0,0 +1,244 @@ +/* + * 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. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + * + * Contributors: + * Manjunath Hadli + * Prabhakar Lad + */ + +#ifndef _DAVINCI_VPFE_DM365_RESIZER_H +#define _DAVINCI_VPFE_DM365_RESIZER_H + +enum resizer_oper_mode { + RESIZER_MODE_CONTINIOUS = 0, + RESIZER_MODE_ONE_SHOT = 1, +}; + +struct f_div_pass { + unsigned int o_hsz; + unsigned int i_hps; + unsigned int h_phs; + unsigned int src_hps; + unsigned int src_hsz; +}; + +#define MAX_PASSES 2 + +struct f_div_param { + unsigned char en; + unsigned int num_passes; + struct f_div_pass pass[MAX_PASSES]; +}; + +/* Resizer Rescale Parameters*/ +struct resizer_scale_param { + bool h_flip; + bool v_flip; + bool cen; + bool yen; + unsigned short i_vps; + unsigned short i_hps; + unsigned short o_vsz; + unsigned short o_hsz; + unsigned short v_phs_y; + unsigned short v_phs_c; + unsigned short v_dif; + /* resize method - Luminance */ + enum vpfe_rsz_intp_t v_typ_y; + /* resize method - Chrominance */ + enum vpfe_rsz_intp_t v_typ_c; + /* vertical lpf intensity - Luminance */ + unsigned char v_lpf_int_y; + /* vertical lpf intensity - Chrominance */ + unsigned char v_lpf_int_c; + unsigned short h_phs; + unsigned short h_dif; + /* resize method - Luminance */ + enum vpfe_rsz_intp_t h_typ_y; + /* resize method - Chrominance */ + enum vpfe_rsz_intp_t h_typ_c; + /* horizontal lpf intensity - Luminance */ + unsigned char h_lpf_int_y; + /* horizontal lpf intensity - Chrominance */ + unsigned char h_lpf_int_c; + bool dscale_en; + enum vpfe_rsz_down_scale_ave_sz h_dscale_ave_sz; + enum vpfe_rsz_down_scale_ave_sz v_dscale_ave_sz; + /* store the calculated frame division parameter */ + struct f_div_param f_div; +}; + +enum resizer_rgb_t { + OUTPUT_32BIT, + OUTPUT_16BIT +}; + +enum resizer_rgb_msk_t { + NOMASK = 0, + MASKLAST2 = 1, +}; + +/* Resizer RGB Conversion Parameters */ +struct resizer_rgb { + bool rgb_en; + enum resizer_rgb_t rgb_typ; + enum resizer_rgb_msk_t rgb_msk0; + enum resizer_rgb_msk_t rgb_msk1; + unsigned int rgb_alpha_val; +}; + +/* Resizer External Memory Parameters */ +struct rsz_ext_mem_param { + unsigned int rsz_sdr_oft_y; + unsigned int rsz_sdr_ptr_s_y; + unsigned int rsz_sdr_ptr_e_y; + unsigned int rsz_sdr_oft_c; + unsigned int rsz_sdr_ptr_s_c; + unsigned int rsz_sdr_ptr_e_c; + /* offset to be added to buffer start when flipping for y/ycbcr */ + unsigned int flip_ofst_y; + /* offset to be added to buffer start when flipping for c */ + unsigned int flip_ofst_c; + /* c offset for YUV 420SP */ + unsigned int c_offset; + /* User Defined Y offset for YUV 420SP or YUV420ILE data */ + unsigned int user_y_ofst; + /* User Defined C offset for YUV 420SP data */ + unsigned int user_c_ofst; +}; + +enum rsz_data_source { + IPIPE_DATA, + IPIPEIF_DATA +}; + +enum rsz_src_img_fmt { + RSZ_IMG_422, + RSZ_IMG_420 +}; + +enum rsz_dpaths_bypass_t { + BYPASS_OFF = 0, + BYPASS_ON = 1, +}; + +struct rsz_common_params { + unsigned int vps; + unsigned int vsz; + unsigned int hps; + unsigned int hsz; + /* 420 or 422 */ + enum rsz_src_img_fmt src_img_fmt; + /* Y or C when src_fmt is 420, 0 - y, 1 - c */ + unsigned char y_c; + /* flip raw or ycbcr */ + unsigned char raw_flip; + /* IPIPE or IPIPEIF data */ + enum rsz_data_source source; + enum rsz_dpaths_bypass_t passthrough; + unsigned char yuv_y_min; + unsigned char yuv_y_max; + unsigned char yuv_c_min; + unsigned char yuv_c_max; + bool rsz_seq_crv; + enum vpfe_chr_pos out_chr_pos; +}; + +struct resizer_params { + enum resizer_oper_mode oper_mode; + struct rsz_common_params rsz_common; + struct resizer_scale_param rsz_rsc_param[2]; + struct resizer_rgb rsz2rgb[2]; + struct rsz_ext_mem_param ext_mem_param[2]; + bool rsz_en[2]; + struct vpfe_rsz_config_params user_config; +}; + +#define ENABLE 1 +#define DISABLE (!ENABLE) + +#define RESIZER_CROP_PAD_SINK 0 +#define RESIZER_CROP_PAD_SOURCE 1 +#define RESIZER_CROP_PAD_SOURCE2 2 + +#define RESIZER_CROP_PADS_NUM 3 + +enum resizer_crop_input_entity { + RESIZER_CROP_INPUT_NONE = 0, + RESIZER_CROP_INPUT_IPIPEIF = 1, + RESIZER_CROP_INPUT_IPIPE = 2, +}; + +enum resizer_crop_output_entity { + RESIZER_CROP_OUTPUT_NONE, + RESIZER_A, + RESIZER_B, +}; + +struct dm365_crop_resizer_device { + struct v4l2_subdev subdev; + struct media_pad pads[RESIZER_CROP_PADS_NUM]; + struct v4l2_mbus_framefmt formats[RESIZER_CROP_PADS_NUM]; + enum resizer_crop_input_entity input; + enum resizer_crop_output_entity output; + enum resizer_crop_output_entity output2; + struct vpfe_resizer_device *rsz_device; +}; + +#define RESIZER_PAD_SINK 0 +#define RESIZER_PAD_SOURCE 1 + +#define RESIZER_PADS_NUM 2 + +enum resizer_input_entity { + RESIZER_INPUT_NONE = 0, + RESIZER_INPUT_CROP_RESIZER = 1, +}; + +enum resizer_output_entity { + RESIZER_OUTPUT_NONE = 0, + RESIZER_OUPUT_MEMORY = 1, +}; + +struct dm365_resizer_device { + struct v4l2_subdev subdev; + struct media_pad pads[RESIZER_PADS_NUM]; + struct v4l2_mbus_framefmt formats[RESIZER_PADS_NUM]; + enum resizer_input_entity input; + enum resizer_output_entity output; + struct vpfe_video_device video_out; + struct vpfe_resizer_device *rsz_device; +}; + +struct vpfe_resizer_device { + struct dm365_crop_resizer_device crop_resizer; + struct dm365_resizer_device resizer_a; + struct dm365_resizer_device resizer_b; + struct resizer_params config; + void *__iomem base_addr; +}; + +int vpfe_resizer_init(struct vpfe_resizer_device *vpfe_rsz, + struct platform_device *pdev); +int vpfe_resizer_register_entities(struct vpfe_resizer_device *vpfe_rsz, + struct v4l2_device *v4l2_dev); +void vpfe_resizer_unregister_entities(struct vpfe_resizer_device *vpfe_rsz); +void vpfe_resizer_cleanup(struct vpfe_resizer_device *vpfe_rsz, + struct platform_device *pdev); +void vpfe_resizer_buffer_isr(struct vpfe_resizer_device *resizer); +void vpfe_resizer_dma_isr(struct vpfe_resizer_device *resizer); + +#endif /* _DAVINCI_VPFE_DM365_RESIZER_H */