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#include "isys_dma_public.h" /* isys2401_dma_set_max_burst_size() */ 22#include "isys_irq.h" 23 24static input_system_err_t ia_css_isys_2400_init(void) 25{ 26 backend_channel_cfg_t backend_ch0; 27 backend_channel_cfg_t backend_ch1; 28 target_cfg2400_t targetB; 29 target_cfg2400_t targetC; 30 u32 acq_mem_region_size = 24; 31 u32 acq_nof_mem_regions = 2; 32 input_system_err_t error = INPUT_SYSTEM_ERR_NO_ERROR; 33 34 memset(&backend_ch0, 0, sizeof(backend_channel_cfg_t)); 35 memset(&backend_ch1, 0, sizeof(backend_channel_cfg_t)); 36 memset(&targetB, 0, sizeof(targetB)); 37 memset(&targetC, 0, sizeof(targetC)); 38 39 error = input_system_configuration_reset(); 40 if (error != INPUT_SYSTEM_ERR_NO_ERROR) 41 return error; 42 43 error = input_system_csi_xmem_channel_cfg( 44 0, /*ch_id */ 45 INPUT_SYSTEM_PORT_A, /*port */ 46 backend_ch0, /*backend_ch */ 47 32, /*mem_region_size */ 48 6, /*nof_mem_regions */ 49 acq_mem_region_size, /*acq_mem_region_size */ 50 acq_nof_mem_regions, /*acq_nof_mem_regions */ 51 targetB, /*target */ 52 3); /*nof_xmem_buffers */ 53 if (error != INPUT_SYSTEM_ERR_NO_ERROR) 54 return error; 55 56 error = input_system_csi_xmem_channel_cfg( 57 1, /*ch_id */ 58 INPUT_SYSTEM_PORT_B, /*port */ 59 backend_ch0, /*backend_ch */ 60 16, /*mem_region_size */ 61 3, /*nof_mem_regions */ 62 acq_mem_region_size, /*acq_mem_region_size */ 63 acq_nof_mem_regions, /*acq_nof_mem_regions */ 64 targetB, /*target */ 65 3); /*nof_xmem_buffers */ 66 if (error != INPUT_SYSTEM_ERR_NO_ERROR) 67 return error; 68 69 error = input_system_csi_xmem_channel_cfg( 70 2, /*ch_id */ 71 INPUT_SYSTEM_PORT_C, /*port */ 72 backend_ch1, /*backend_ch */ 73 32, /*mem_region_size */ 74 3, /*nof_mem_regions */ 75 acq_mem_region_size, /*acq_mem_region_size */ 76 acq_nof_mem_regions, /*acq_nof_mem_regions */ 77 targetC, /*target */ 78 2); /*nof_xmem_buffers */ 79 if (error != INPUT_SYSTEM_ERR_NO_ERROR) 80 return error; 81 82 error = input_system_configuration_commit(); 83 84 return error; 85} 86 87static input_system_err_t ia_css_isys_2401_init(void) 88{ 89 ia_css_isys_csi_rx_lut_rmgr_init(); 90 ia_css_isys_ibuf_rmgr_init(); 91 ia_css_isys_dma_channel_rmgr_init(); 92 ia_css_isys_stream2mmio_sid_rmgr_init(); 93 94 isys2401_dma_set_max_burst_size(ISYS2401_DMA0_ID, 95 1 /* Non Burst DMA transactions */); 96 97 /* Enable 2401 input system IRQ status for driver to retrieve */ 98 isys_irqc_status_enable(ISYS_IRQ0_ID); 99 isys_irqc_status_enable(ISYS_IRQ1_ID); 100 isys_irqc_status_enable(ISYS_IRQ2_ID); 101 102 return INPUT_SYSTEM_ERR_NO_ERROR; 103} 104 105input_system_err_t ia_css_isys_init(void) 106{ 107 if (IS_ISP2401) 108 return ia_css_isys_2401_init(); 109 110 return ia_css_isys_2400_init(); 111} 112 113void ia_css_isys_uninit(void) 114{ 115 if (IS_ISP2401) { 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} 122