diff options
Diffstat (limited to 'drivers/staging/media/atomisp/pci/isp/kernels/vf/vf_1.0')
4 files changed, 260 insertions, 0 deletions
diff --git a/drivers/staging/media/atomisp/pci/isp/kernels/vf/vf_1.0/ia_css_vf.host.c b/drivers/staging/media/atomisp/pci/isp/kernels/vf/vf_1.0/ia_css_vf.host.c new file mode 100644 index 0000000000..aecdcbe04c --- /dev/null +++ b/drivers/staging/media/atomisp/pci/isp/kernels/vf/vf_1.0/ia_css_vf.host.c @@ -0,0 +1,144 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * Support for Intel Camera Imaging ISP subsystem. + * Copyright (c) 2015, Intel Corporation. + * + * This program is free software; you can redistribute it and/or modify it + * under the terms and conditions of the GNU General Public License, + * version 2, as published by the Free Software Foundation. + * + * This program is distributed in the hope 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. + */ + +#include "atomisp_internal.h" + +#include "ia_css_vf.host.h" +#include <assert_support.h> +#include <ia_css_err.h> +#include <ia_css_frame.h> +#include <ia_css_frame_public.h> +#include <ia_css_pipeline.h> +#define IA_CSS_INCLUDE_CONFIGURATIONS +#include "ia_css_isp_configs.h" + +#include "isp.h" + +int ia_css_vf_config(struct sh_css_isp_vf_isp_config *to, + const struct ia_css_vf_configuration *from, + unsigned int size) +{ + unsigned int elems_a = ISP_VEC_NELEMS; + int ret; + + to->vf_downscale_bits = from->vf_downscale_bits; + to->enable = from->info != NULL; + + if (from->info) { + ia_css_frame_info_to_frame_sp_info(&to->info, from->info); + ret = ia_css_dma_configure_from_info(&to->dma.port_b, from->info); + if (ret) + return ret; + to->dma.width_a_over_b = elems_a / to->dma.port_b.elems; + + /* Assume divisiblity here, may need to generalize to fixed point. */ + if (elems_a % to->dma.port_b.elems != 0) + return -EINVAL; + } + return 0; +} + +/* compute the log2 of the downscale factor needed to get closest + * to the requested viewfinder resolution on the upper side. The output cannot + * be smaller than the requested viewfinder resolution. + */ +int +sh_css_vf_downscale_log2( + const struct ia_css_frame_info *out_info, + const struct ia_css_frame_info *vf_info, + unsigned int *downscale_log2) { + unsigned int ds_log2 = 0; + unsigned int out_width; + + if ((!out_info) || (!vf_info)) + return -EINVAL; + + out_width = out_info->res.width; + + if (out_width == 0) + return -EINVAL; + + /* downscale until width smaller than the viewfinder width. We don't + * test for the height since the vmem buffers only put restrictions on + * the width of a line, not on the number of lines in a frame. + */ + while (out_width >= vf_info->res.width) + { + ds_log2++; + out_width /= 2; + } + /* now width is smaller, so we go up one step */ + if ((ds_log2 > 0) && (out_width < ia_css_binary_max_vf_width())) + ds_log2--; + /* TODO: use actual max input resolution of vf_pp binary */ + if ((out_info->res.width >> ds_log2) >= 2 * ia_css_binary_max_vf_width()) + return -EINVAL; + *downscale_log2 = ds_log2; + return 0; +} + +static int +configure_kernel( + const struct ia_css_binary_info *info, + const struct ia_css_frame_info *out_info, + const struct ia_css_frame_info *vf_info, + unsigned int *downscale_log2, + struct ia_css_vf_configuration *config) { + int err; + unsigned int vf_log_ds = 0; + + /* First compute value */ + if (vf_info) + { + err = sh_css_vf_downscale_log2(out_info, vf_info, &vf_log_ds); + if (err) + return err; + } + vf_log_ds = min(vf_log_ds, info->vf_dec.max_log_downscale); + *downscale_log2 = vf_log_ds; + + /* Then store it in isp config section */ + config->vf_downscale_bits = vf_log_ds; + return 0; +} + +static void +configure_dma( + struct ia_css_vf_configuration *config, + const struct ia_css_frame_info *vf_info) +{ + config->info = vf_info; +} + +int ia_css_vf_configure(const struct ia_css_binary *binary, + const struct ia_css_frame_info *out_info, + struct ia_css_frame_info *vf_info, + unsigned int *downscale_log2) +{ + int err; + struct ia_css_vf_configuration config; + const struct ia_css_binary_info *info = &binary->info->sp; + + err = configure_kernel(info, out_info, vf_info, downscale_log2, &config); + if (err) + dev_warn(atomisp_dev, "Couldn't setup downscale\n"); + + configure_dma(&config, vf_info); + + if (vf_info) + vf_info->raw_bit_depth = info->dma.vfdec_bits_per_pixel; + + return ia_css_configure_vf(binary, &config); +} diff --git a/drivers/staging/media/atomisp/pci/isp/kernels/vf/vf_1.0/ia_css_vf.host.h b/drivers/staging/media/atomisp/pci/isp/kernels/vf/vf_1.0/ia_css_vf.host.h new file mode 100644 index 0000000000..d6b45d3754 --- /dev/null +++ b/drivers/staging/media/atomisp/pci/isp/kernels/vf/vf_1.0/ia_css_vf.host.h @@ -0,0 +1,46 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +/* + * Support for Intel Camera Imaging ISP subsystem. + * Copyright (c) 2015, Intel Corporation. + * + * This program is free software; you can redistribute it and/or modify it + * under the terms and conditions of the GNU General Public License, + * version 2, as published by the Free Software Foundation. + * + * This program is distributed in the hope 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. + */ + +#ifndef __IA_CSS_VF_HOST_H +#define __IA_CSS_VF_HOST_H + +#include "ia_css_frame_public.h" +#include "ia_css_binary.h" + +#include "ia_css_vf_types.h" +#include "ia_css_vf_param.h" + +/* compute the log2 of the downscale factor needed to get closest + * to the requested viewfinder resolution on the upper side. The output cannot + * be smaller than the requested viewfinder resolution. + */ +int +sh_css_vf_downscale_log2( + const struct ia_css_frame_info *out_info, + const struct ia_css_frame_info *vf_info, + unsigned int *downscale_log2); + +int ia_css_vf_config(struct sh_css_isp_vf_isp_config *to, + const struct ia_css_vf_configuration *from, + unsigned int size); + +int +ia_css_vf_configure( + const struct ia_css_binary *binary, + const struct ia_css_frame_info *out_info, + struct ia_css_frame_info *vf_info, + unsigned int *downscale_log2); + +#endif /* __IA_CSS_VF_HOST_H */ diff --git a/drivers/staging/media/atomisp/pci/isp/kernels/vf/vf_1.0/ia_css_vf_param.h b/drivers/staging/media/atomisp/pci/isp/kernels/vf/vf_1.0/ia_css_vf_param.h new file mode 100644 index 0000000000..487ddf1633 --- /dev/null +++ b/drivers/staging/media/atomisp/pci/isp/kernels/vf/vf_1.0/ia_css_vf_param.h @@ -0,0 +1,38 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +/* + * Support for Intel Camera Imaging ISP subsystem. + * Copyright (c) 2015, Intel Corporation. + * + * This program is free software; you can redistribute it and/or modify it + * under the terms and conditions of the GNU General Public License, + * version 2, as published by the Free Software Foundation. + * + * This program is distributed in the hope 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. + */ + +#ifndef __IA_CSS_VF_PARAM_H +#define __IA_CSS_VF_PARAM_H + +#include "type_support.h" +#include "dma.h" +#include "gc/gc_1.0/ia_css_gc_param.h" /* GAMMA_OUTPUT_BITS */ +#include "ia_css_frame_comm.h" /* ia_css_frame_sp_info */ +#include "ia_css_vf_types.h" + +#define VFDEC_BITS_PER_PIXEL GAMMA_OUTPUT_BITS + +/* Viewfinder decimation */ +struct sh_css_isp_vf_isp_config { + u32 vf_downscale_bits; /** Log VF downscale value */ + u32 enable; + struct ia_css_frame_sp_info info; + struct { + u32 width_a_over_b; + struct dma_port_config port_b; + } dma; +}; + +#endif /* __IA_CSS_VF_PARAM_H */ diff --git a/drivers/staging/media/atomisp/pci/isp/kernels/vf/vf_1.0/ia_css_vf_types.h b/drivers/staging/media/atomisp/pci/isp/kernels/vf/vf_1.0/ia_css_vf_types.h new file mode 100644 index 0000000000..24fbb61d34 --- /dev/null +++ b/drivers/staging/media/atomisp/pci/isp/kernels/vf/vf_1.0/ia_css_vf_types.h @@ -0,0 +1,32 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +/* + * Support for Intel Camera Imaging ISP subsystem. + * Copyright (c) 2015, Intel Corporation. + * + * This program is free software; you can redistribute it and/or modify it + * under the terms and conditions of the GNU General Public License, + * version 2, as published by the Free Software Foundation. + * + * This program is distributed in the hope 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. + */ + +#ifndef __IA_CSS_VF_TYPES_H +#define __IA_CSS_VF_TYPES_H + +/* Viewfinder decimation + * + * ISP block: vfeven_horizontal_downscale + */ + +#include <ia_css_frame_public.h> +#include <type_support.h> + +struct ia_css_vf_configuration { + u32 vf_downscale_bits; /** Log VF downscale value */ + const struct ia_css_frame_info *info; +}; + +#endif /* __IA_CSS_VF_TYPES_H */ |