1 // SPDX-License-Identifier: GPL-2.0 2 /* 3 * Support for Intel Camera Imaging ISP subsystem. 4 * Copyright (c) 2010 - 2015, Intel Corporation. 5 */ 6 7 #include "sh_css_sp.h" 8 9 #include "dma.h" /* N_DMA_CHANNEL_ID */ 10 11 #include <type_support.h> 12 #include "ia_css_binary.h" 13 #include "sh_css_hrt.h" 14 #include "sh_css_defs.h" 15 #include "sh_css_internal.h" 16 #include "ia_css_debug.h" 17 #include "ia_css_debug_internal.h" 18 #include "sh_css_legacy.h" 19 20 #include "gdc_device.h" /* HRT_GDC_N */ 21 22 /*#include "sp.h"*/ /* host2sp_enqueue_frame_data() */ 23 24 #include "assert_support.h" 25 26 #include "ia_css_queue.h" /* host_sp_enqueue_XXX */ 27 #include "ia_css_event.h" /* ia_css_event_encode */ 28 /* 29 * @brief Encode the information into the software-event. 30 * Refer to "sw_event_public.h" for details. 31 */ ia_css_event_encode(u8 * in,u8 nr,uint32_t * out)32bool ia_css_event_encode( 33 u8 *in, 34 u8 nr, 35 uint32_t *out) 36 { 37 bool ret; 38 u32 nr_of_bits; 39 u32 i; 40 41 assert(in); 42 assert(out); 43 OP___assert(nr > 0 && nr <= MAX_NR_OF_PAYLOADS_PER_SW_EVENT); 44 45 /* initialize the output */ 46 *out = 0; 47 48 /* get the number of bits per information */ 49 nr_of_bits = sizeof(uint32_t) * 8 / nr; 50 51 /* compress the all inputs into a signle output */ 52 for (i = 0; i < nr; i++) { 53 *out <<= nr_of_bits; 54 *out |= in[i]; 55 } 56 57 /* get the return value */ 58 ret = (nr > 0 && nr <= MAX_NR_OF_PAYLOADS_PER_SW_EVENT); 59 60 return ret; 61 } 62 ia_css_event_decode(u32 event,uint8_t * payload)63void ia_css_event_decode( 64 u32 event, 65 uint8_t *payload) 66 { 67 assert(payload[1] == 0); 68 assert(payload[2] == 0); 69 assert(payload[3] == 0); 70 71 ia_css_debug_dtrace(IA_CSS_DEBUG_TRACE_PRIVATE, 72 "ia_css_event_decode() enter:\n"); 73 74 /* First decode according to the common case 75 * In case of a PORT_EOF event we overwrite with 76 * the specific values 77 * This is somewhat ugly but probably somewhat efficient 78 * (and it avoids some code duplication) 79 */ 80 payload[0] = event & 0xff; /*event_code */ 81 payload[1] = (event >> 8) & 0xff; 82 payload[2] = (event >> 16) & 0xff; 83 payload[3] = 0; 84 85 switch (payload[0]) { 86 case SH_CSS_SP_EVENT_PORT_EOF: 87 payload[2] = 0; 88 payload[3] = (event >> 24) & 0xff; 89 break; 90 91 case SH_CSS_SP_EVENT_ACC_STAGE_COMPLETE: 92 case SH_CSS_SP_EVENT_TIMER: 93 case SH_CSS_SP_EVENT_FRAME_TAGGED: 94 case SH_CSS_SP_EVENT_FW_WARNING: 95 case SH_CSS_SP_EVENT_FW_ASSERT: 96 payload[3] = (event >> 24) & 0xff; 97 break; 98 default: 99 break; 100 } 101 } 102