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)
ia_css_isys_init(void)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)
ia_css_isys_init(void)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)
ia_css_isys_uninit(void)110 void ia_css_isys_uninit(void)
111 {
112 }
113 #elif defined(ISP2401)
ia_css_isys_uninit(void)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