1 /* 2 * Support for Intel Camera Imaging ISP subsystem. 3 * Copyright (c) 2010 - 2015, Intel Corporation. 4 * 5 * This program is free software; you can redistribute it and/or modify it 6 * under the terms and conditions of the GNU General Public License, 7 * version 2, as published by the Free Software Foundation. 8 * 9 * This program is distributed in the hope it will be useful, but WITHOUT 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for 12 * more details. 13 */ 14 15 #include "sh_css_sp.h" 16 17 #include "dma.h" /* N_DMA_CHANNEL_ID */ 18 19 #include <type_support.h> 20 #include "ia_css_binary.h" 21 #include "sh_css_hrt.h" 22 #include "sh_css_defs.h" 23 #include "sh_css_internal.h" 24 #include "ia_css_debug.h" 25 #include "ia_css_debug_internal.h" 26 #include "sh_css_legacy.h" 27 28 #include "gdc_device.h" /* HRT_GDC_N */ 29 30 /*#include "sp.h"*/ /* host2sp_enqueue_frame_data() */ 31 32 #include "assert_support.h" 33 #include "platform_support.h" /* hrt_sleep() */ 34 35 #include "ia_css_queue.h" /* host_sp_enqueue_XXX */ 36 #include "ia_css_event.h" /* ia_css_event_encode */ 37 /* 38 * @brief Encode the information into the software-event. 39 * Refer to "sw_event_public.h" for details. 40 */ 41 bool ia_css_event_encode( 42 u8 *in, 43 u8 nr, 44 uint32_t *out) 45 { 46 bool ret; 47 u32 nr_of_bits; 48 u32 i; 49 50 assert(in); 51 assert(out); 52 OP___assert(nr > 0 && nr <= MAX_NR_OF_PAYLOADS_PER_SW_EVENT); 53 54 /* initialize the output */ 55 *out = 0; 56 57 /* get the number of bits per information */ 58 nr_of_bits = sizeof(uint32_t) * 8 / nr; 59 60 /* compress the all inputs into a signle output */ 61 for (i = 0; i < nr; i++) { 62 *out <<= nr_of_bits; 63 *out |= in[i]; 64 } 65 66 /* get the return value */ 67 ret = (nr > 0 && nr <= MAX_NR_OF_PAYLOADS_PER_SW_EVENT); 68 69 return ret; 70 } 71 72 void ia_css_event_decode( 73 u32 event, 74 uint8_t *payload) 75 { 76 assert(payload[1] == 0); 77 assert(payload[2] == 0); 78 assert(payload[3] == 0); 79 80 ia_css_debug_dtrace(IA_CSS_DEBUG_TRACE_PRIVATE, 81 "ia_css_event_decode() enter:\n"); 82 83 /* First decode according to the common case 84 * In case of a PORT_EOF event we overwrite with 85 * the specific values 86 * This is somewhat ugly but probably somewhat efficient 87 * (and it avoids some code duplication) 88 */ 89 payload[0] = event & 0xff; /*event_code */ 90 payload[1] = (event >> 8) & 0xff; 91 payload[2] = (event >> 16) & 0xff; 92 payload[3] = 0; 93 94 switch (payload[0]) { 95 case SH_CSS_SP_EVENT_PORT_EOF: 96 payload[2] = 0; 97 payload[3] = (event >> 24) & 0xff; 98 break; 99 100 case SH_CSS_SP_EVENT_ACC_STAGE_COMPLETE: 101 case SH_CSS_SP_EVENT_TIMER: 102 case SH_CSS_SP_EVENT_FRAME_TAGGED: 103 case SH_CSS_SP_EVENT_FW_WARNING: 104 case SH_CSS_SP_EVENT_FW_ASSERT: 105 payload[3] = (event >> 24) & 0xff; 106 break; 107 default: 108 break; 109 } 110 } 111