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 * This program is free software; you can redistribute it and/or modify it 7 * under the terms and conditions of the GNU General Public License, 8 * version 2, as published by the Free Software Foundation. 9 * 10 * This program is distributed in the hope it will be useful, but WITHOUT 11 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 12 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for 13 * more details. 14 */ 15 16 #include "input_system.h" 17 18 #include "ia_css_isys.h" 19 #include "platform_support.h" 20 21 #ifdef ISP2401 22 #include "isys_dma_public.h" /* isys2401_dma_set_max_burst_size() */ 23 #include "isys_irq.h" 24 #endif 25 26 #if !defined(ISP2401) 27 input_system_err_t ia_css_isys_init(void) 28 { 29 backend_channel_cfg_t backend_ch0; 30 backend_channel_cfg_t backend_ch1; 31 target_cfg2400_t targetB; 32 target_cfg2400_t targetC; 33 u32 acq_mem_region_size = 24; 34 u32 acq_nof_mem_regions = 2; 35 input_system_err_t error = INPUT_SYSTEM_ERR_NO_ERROR; 36 37 memset(&backend_ch0, 0, sizeof(backend_channel_cfg_t)); 38 memset(&backend_ch1, 0, sizeof(backend_channel_cfg_t)); 39 memset(&targetB, 0, sizeof(targetB)); 40 memset(&targetC, 0, sizeof(targetC)); 41 42 error = input_system_configuration_reset(); 43 if (error != INPUT_SYSTEM_ERR_NO_ERROR) 44 return error; 45 46 error = input_system_csi_xmem_channel_cfg( 47 0, /*ch_id */ 48 INPUT_SYSTEM_PORT_A, /*port */ 49 backend_ch0, /*backend_ch */ 50 32, /*mem_region_size */ 51 6, /*nof_mem_regions */ 52 acq_mem_region_size, /*acq_mem_region_size */ 53 acq_nof_mem_regions, /*acq_nof_mem_regions */ 54 targetB, /*target */ 55 3); /*nof_xmem_buffers */ 56 if (error != INPUT_SYSTEM_ERR_NO_ERROR) 57 return error; 58 59 error = input_system_csi_xmem_channel_cfg( 60 1, /*ch_id */ 61 INPUT_SYSTEM_PORT_B, /*port */ 62 backend_ch0, /*backend_ch */ 63 16, /*mem_region_size */ 64 3, /*nof_mem_regions */ 65 acq_mem_region_size, /*acq_mem_region_size */ 66 acq_nof_mem_regions, /*acq_nof_mem_regions */ 67 targetB, /*target */ 68 3); /*nof_xmem_buffers */ 69 if (error != INPUT_SYSTEM_ERR_NO_ERROR) 70 return error; 71 72 error = input_system_csi_xmem_channel_cfg( 73 2, /*ch_id */ 74 INPUT_SYSTEM_PORT_C, /*port */ 75 backend_ch1, /*backend_ch */ 76 32, /*mem_region_size */ 77 3, /*nof_mem_regions */ 78 acq_mem_region_size, /*acq_mem_region_size */ 79 acq_nof_mem_regions, /*acq_nof_mem_regions */ 80 targetC, /*target */ 81 2); /*nof_xmem_buffers */ 82 if (error != INPUT_SYSTEM_ERR_NO_ERROR) 83 return error; 84 85 error = input_system_configuration_commit(); 86 87 return error; 88 } 89 #elif defined(ISP2401) 90 input_system_err_t ia_css_isys_init(void) 91 { 92 ia_css_isys_csi_rx_lut_rmgr_init(); 93 ia_css_isys_ibuf_rmgr_init(); 94 ia_css_isys_dma_channel_rmgr_init(); 95 ia_css_isys_stream2mmio_sid_rmgr_init(); 96 97 isys2401_dma_set_max_burst_size(ISYS2401_DMA0_ID, 98 1 /* Non Burst DMA transactions */); 99 100 /* Enable 2401 input system IRQ status for driver to retrieve */ 101 isys_irqc_status_enable(ISYS_IRQ0_ID); 102 isys_irqc_status_enable(ISYS_IRQ1_ID); 103 isys_irqc_status_enable(ISYS_IRQ2_ID); 104 105 return INPUT_SYSTEM_ERR_NO_ERROR; 106 } 107 #endif 108 109 #if !defined(ISP2401) 110 void ia_css_isys_uninit(void) 111 { 112 } 113 #elif defined(ISP2401) 114 void ia_css_isys_uninit(void) 115 { 116 ia_css_isys_csi_rx_lut_rmgr_uninit(); 117 ia_css_isys_ibuf_rmgr_uninit(); 118 ia_css_isys_dma_channel_rmgr_uninit(); 119 ia_css_isys_stream2mmio_sid_rmgr_uninit(); 120 } 121 #endif 122 123