// SPDX-License-Identifier: GPL-2.0 /* * Support for Intel Camera Imaging ISP subsystem. * Copyright (c) 2010 - 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 "platform_support.h" #include "ia_css_inputfifo.h" #include "device_access.h" #define __INLINE_SP__ #include "sp.h" #define __INLINE_ISP__ #include "isp.h" #define __INLINE_IRQ__ #include "irq.h" #define __INLINE_FIFO_MONITOR__ #include "fifo_monitor.h" #define __INLINE_EVENT__ #include "event_fifo.h" #define __INLINE_SP__ #include "input_system.h" /* MIPI_PREDICTOR_NONE,... */ #include "assert_support.h" /* System independent */ #include "sh_css_internal.h" #include "ia_css_isys.h" #define HBLANK_CYCLES … #define MARKER_CYCLES … #include <hive_isp_css_streaming_to_mipi_types_hrt.h> /* The data type is used to send special cases: * yuv420: odd lines (1, 3 etc) are twice as wide as even * lines (0, 2, 4 etc). * rgb: for two pixels per clock, the R and B values are sent * to output_0 while only G is sent to output_1. This means * that output_1 only gets half the number of values of output_0. * WARNING: This type should also be used for Legacy YUV420. * regular: used for all other data types (RAW, YUV422, etc) */ enum inputfifo_mipi_data_type { … }; static unsigned int inputfifo_curr_ch_id, inputfifo_curr_fmt_type; struct inputfifo_instance { … }; /* * Maintain a basic streaming to Mipi administration with ch_id as index * ch_id maps on the "Mipi virtual channel ID" and can have value 0..3 */ #define INPUTFIFO_NR_OF_S2M_CHANNELS … static struct inputfifo_instance inputfifo_inst_admin[INPUTFIFO_NR_OF_S2M_CHANNELS]; /* Streaming to MIPI */ static unsigned int inputfifo_wrap_marker( /* static inline unsigned inputfifo_wrap_marker( */ unsigned int marker) { … } static inline void _sh_css_fifo_snd(unsigned int token) { … } static void inputfifo_send_data_a( /* static inline void inputfifo_send_data_a( */ unsigned int data) { … } static void inputfifo_send_data_b( /* static inline void inputfifo_send_data_b( */ unsigned int data) { … } static void inputfifo_send_data( /* static inline void inputfifo_send_data( */ unsigned int a, unsigned int b) { … } static void inputfifo_send_sol(void) /* static inline void inputfifo_send_sol(void) */ { … } static void inputfifo_send_eol(void) /* static inline void inputfifo_send_eol(void) */ { … } static void inputfifo_send_sof(void) /* static inline void inputfifo_send_sof(void) */ { … } static void inputfifo_send_eof(void) /* static inline void inputfifo_send_eof(void) */ { … } static void inputfifo_send_ch_id_and_fmt_type( /* static inline void inputfifo_send_ch_id_and_fmt_type( */ unsigned int ch_id, unsigned int fmt_type) { … } static void inputfifo_send_empty_token(void) /* static inline void inputfifo_send_empty_token(void) */ { … } static void inputfifo_start_frame( /* static inline void inputfifo_start_frame( */ unsigned int ch_id, unsigned int fmt_type) { … } static void inputfifo_end_frame( unsigned int marker_cycles) { … } static void inputfifo_send_line2( const unsigned short *data, unsigned int width, const unsigned short *data2, unsigned int width2, unsigned int hblank_cycles, unsigned int marker_cycles, unsigned int two_ppc, enum inputfifo_mipi_data_type type) { … } static void inputfifo_send_line(const unsigned short *data, unsigned int width, unsigned int hblank_cycles, unsigned int marker_cycles, unsigned int two_ppc, enum inputfifo_mipi_data_type type) { … } /* Send a frame of data into the input network via the GP FIFO. * Parameters: * - data: array of 16 bit values that contains all data for the frame. * - width: width of a line in number of subpixels, for yuv420 it is the * number of Y components per line. * - height: height of the frame in number of lines. * - ch_id: channel ID. * - fmt_type: format type. * - hblank_cycles: length of horizontal blanking in cycles. * - marker_cycles: number of empty cycles after start-of-line and before * end-of-frame. * - two_ppc: boolean, describes whether to send one or two pixels per clock * cycle. In this mode, we sent pixels N and N+1 in the same cycle, * to IF_PRIM_A and IF_PRIM_B respectively. The caller must make * sure the input data has been formatted correctly for this. * For example, for RGB formats this means that unused values * must be inserted. * - yuv420: boolean, describes whether (non-legacy) yuv420 data is used. In * this mode, the odd lines (1,3,5 etc) are half as long as the * even lines (2,4,6 etc). * Note that the first line is odd (1) and the second line is even * (2). * * This function does not do any reordering of pixels, the caller must make * sure the data is in the righ format. Please refer to the CSS receiver * documentation for details on the data formats. */ static void inputfifo_send_frame( const unsigned short *data, unsigned int width, unsigned int height, unsigned int ch_id, unsigned int fmt_type, unsigned int hblank_cycles, unsigned int marker_cycles, unsigned int two_ppc, enum inputfifo_mipi_data_type type) { … } static enum inputfifo_mipi_data_type inputfifo_determine_type( enum atomisp_input_format input_format) { … } static struct inputfifo_instance *inputfifo_get_inst( unsigned int ch_id) { … } void ia_css_inputfifo_send_input_frame( const unsigned short *data, unsigned int width, unsigned int height, unsigned int ch_id, enum atomisp_input_format input_format, bool two_ppc) { … } void ia_css_inputfifo_start_frame( unsigned int ch_id, enum atomisp_input_format input_format, bool two_ppc) { … } void ia_css_inputfifo_send_line( unsigned int ch_id, const unsigned short *data, unsigned int width, const unsigned short *data2, unsigned int width2) { … } void ia_css_inputfifo_send_embedded_line( unsigned int ch_id, enum atomisp_input_format data_type, const unsigned short *data, unsigned int width) { … } void ia_css_inputfifo_end_frame( unsigned int ch_id) { … }
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