Lakshmi Narayana Kalavala | 85c4035 | 2017-05-15 16:19:13 -0700 | [diff] [blame] | 1 | /* Copyright (c) 2017, The Linux Foundation. All rights reserved. |
| 2 | * |
| 3 | * This program is free software; you can redistribute it and/or modify |
| 4 | * it under the terms of the GNU General Public License version 2 and |
| 5 | * only version 2 as published by the Free Software Foundation. |
| 6 | * |
| 7 | * This program is distributed in the hope that it will be useful, |
| 8 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 9 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 10 | * GNU General Public License for more details. |
| 11 | */ |
| 12 | |
Lakshmi Narayana Kalavala | 85c4035 | 2017-05-15 16:19:13 -0700 | [diff] [blame] | 13 | #include <linux/slab.h> |
| 14 | #include <linux/of.h> |
| 15 | #include <linux/debugfs.h> |
| 16 | #include <linux/videodev2.h> |
| 17 | #include <linux/uaccess.h> |
| 18 | #include <linux/platform_device.h> |
| 19 | #include <linux/firmware.h> |
| 20 | #include <linux/delay.h> |
| 21 | #include <linux/timer.h> |
| 22 | #include <linux/elf.h> |
| 23 | #include <media/cam_icp.h> |
| 24 | #include "cam_io_util.h" |
| 25 | #include "cam_a5_hw_intf.h" |
| 26 | #include "cam_hw.h" |
| 27 | #include "cam_hw_intf.h" |
| 28 | #include "a5_core.h" |
| 29 | #include "a5_soc.h" |
| 30 | #include "cam_soc_util.h" |
| 31 | #include "cam_io_util.h" |
| 32 | #include "hfi_intf.h" |
| 33 | #include "hfi_sys_defs.h" |
| 34 | #include "cam_icp_hw_mgr_intf.h" |
| 35 | #include "cam_cpas_api.h" |
Lakshmi Narayana Kalavala | adc6ce3 | 2017-07-17 17:19:11 -0700 | [diff] [blame] | 36 | #include "cam_debug_util.h" |
Lakshmi Narayana Kalavala | 85c4035 | 2017-05-15 16:19:13 -0700 | [diff] [blame] | 37 | |
| 38 | static int cam_a5_cpas_vote(struct cam_a5_device_core_info *core_info, |
| 39 | struct cam_icp_cpas_vote *cpas_vote) |
| 40 | { |
| 41 | int rc = 0; |
| 42 | |
| 43 | if (cpas_vote->ahb_vote_valid) |
| 44 | rc = cam_cpas_update_ahb_vote(core_info->cpas_handle, |
| 45 | &cpas_vote->ahb_vote); |
| 46 | |
| 47 | if (cpas_vote->axi_vote_valid) |
| 48 | rc = cam_cpas_update_axi_vote(core_info->cpas_handle, |
| 49 | &cpas_vote->axi_vote); |
| 50 | |
| 51 | if (rc) |
Lakshmi Narayana Kalavala | adc6ce3 | 2017-07-17 17:19:11 -0700 | [diff] [blame] | 52 | CAM_ERR(CAM_ICP, "cpas vote is failed: %d", rc); |
Lakshmi Narayana Kalavala | 85c4035 | 2017-05-15 16:19:13 -0700 | [diff] [blame] | 53 | |
| 54 | return rc; |
| 55 | } |
| 56 | |
| 57 | static int32_t cam_icp_validate_fw(const uint8_t *elf) |
| 58 | { |
| 59 | struct elf32_hdr *elf_hdr; |
| 60 | |
| 61 | if (!elf) { |
Lakshmi Narayana Kalavala | adc6ce3 | 2017-07-17 17:19:11 -0700 | [diff] [blame] | 62 | CAM_ERR(CAM_ICP, "Invalid params"); |
Lakshmi Narayana Kalavala | 85c4035 | 2017-05-15 16:19:13 -0700 | [diff] [blame] | 63 | return -EINVAL; |
| 64 | } |
| 65 | |
| 66 | elf_hdr = (struct elf32_hdr *)elf; |
| 67 | |
| 68 | if (memcmp(elf_hdr->e_ident, ELFMAG, SELFMAG)) { |
Lakshmi Narayana Kalavala | adc6ce3 | 2017-07-17 17:19:11 -0700 | [diff] [blame] | 69 | CAM_ERR(CAM_ICP, "ICP elf identifier is failed"); |
Lakshmi Narayana Kalavala | 85c4035 | 2017-05-15 16:19:13 -0700 | [diff] [blame] | 70 | return -EINVAL; |
| 71 | } |
| 72 | |
| 73 | /* check architecture */ |
| 74 | if (elf_hdr->e_machine != EM_ARM) { |
Lakshmi Narayana Kalavala | adc6ce3 | 2017-07-17 17:19:11 -0700 | [diff] [blame] | 75 | CAM_ERR(CAM_ICP, "unsupported arch"); |
Lakshmi Narayana Kalavala | 85c4035 | 2017-05-15 16:19:13 -0700 | [diff] [blame] | 76 | return -EINVAL; |
| 77 | } |
| 78 | |
| 79 | /* check elf bit format */ |
| 80 | if (elf_hdr->e_ident[EI_CLASS] != ELFCLASS32) { |
Lakshmi Narayana Kalavala | adc6ce3 | 2017-07-17 17:19:11 -0700 | [diff] [blame] | 81 | CAM_ERR(CAM_ICP, "elf doesn't support 32 bit format"); |
Lakshmi Narayana Kalavala | 85c4035 | 2017-05-15 16:19:13 -0700 | [diff] [blame] | 82 | return -EINVAL; |
| 83 | } |
| 84 | |
| 85 | return 0; |
| 86 | } |
| 87 | |
| 88 | static int32_t cam_icp_get_fw_size(const uint8_t *elf, uint32_t *fw_size) |
| 89 | { |
| 90 | int32_t rc = 0; |
| 91 | int32_t i = 0; |
| 92 | uint32_t num_prg_hdrs; |
| 93 | unsigned char *icp_prg_hdr_tbl; |
| 94 | uint32_t seg_mem_size = 0; |
| 95 | struct elf32_hdr *elf_hdr; |
| 96 | struct elf32_phdr *prg_hdr; |
| 97 | |
| 98 | if (!elf || !fw_size) { |
Lakshmi Narayana Kalavala | adc6ce3 | 2017-07-17 17:19:11 -0700 | [diff] [blame] | 99 | CAM_ERR(CAM_ICP, "invalid args"); |
Lakshmi Narayana Kalavala | 85c4035 | 2017-05-15 16:19:13 -0700 | [diff] [blame] | 100 | return -EINVAL; |
| 101 | } |
| 102 | |
| 103 | *fw_size = 0; |
| 104 | |
| 105 | elf_hdr = (struct elf32_hdr *)elf; |
| 106 | num_prg_hdrs = elf_hdr->e_phnum; |
| 107 | icp_prg_hdr_tbl = (unsigned char *)elf + elf_hdr->e_phoff; |
| 108 | prg_hdr = (struct elf32_phdr *)&icp_prg_hdr_tbl[0]; |
| 109 | |
| 110 | if (!prg_hdr) { |
Lakshmi Narayana Kalavala | adc6ce3 | 2017-07-17 17:19:11 -0700 | [diff] [blame] | 111 | CAM_ERR(CAM_ICP, "failed to get elf program header attr"); |
Lakshmi Narayana Kalavala | 85c4035 | 2017-05-15 16:19:13 -0700 | [diff] [blame] | 112 | return -EINVAL; |
| 113 | } |
| 114 | |
Lakshmi Narayana Kalavala | adc6ce3 | 2017-07-17 17:19:11 -0700 | [diff] [blame] | 115 | CAM_DBG(CAM_ICP, "num_prg_hdrs = %d", num_prg_hdrs); |
Lakshmi Narayana Kalavala | 85c4035 | 2017-05-15 16:19:13 -0700 | [diff] [blame] | 116 | for (i = 0; i < num_prg_hdrs; i++, prg_hdr++) { |
| 117 | if (prg_hdr->p_flags == 0) |
| 118 | continue; |
| 119 | |
| 120 | seg_mem_size = (prg_hdr->p_memsz + prg_hdr->p_align - 1) & |
| 121 | ~(prg_hdr->p_align - 1); |
| 122 | seg_mem_size += prg_hdr->p_vaddr; |
Lakshmi Narayana Kalavala | adc6ce3 | 2017-07-17 17:19:11 -0700 | [diff] [blame] | 123 | CAM_DBG(CAM_ICP, "memsz:%x align:%x addr:%x seg_mem_size:%x", |
Lakshmi Narayana Kalavala | 85c4035 | 2017-05-15 16:19:13 -0700 | [diff] [blame] | 124 | (int)prg_hdr->p_memsz, (int)prg_hdr->p_align, |
| 125 | (int)prg_hdr->p_vaddr, (int)seg_mem_size); |
| 126 | if (*fw_size < seg_mem_size) |
| 127 | *fw_size = seg_mem_size; |
| 128 | |
| 129 | } |
| 130 | |
| 131 | if (*fw_size == 0) { |
Lakshmi Narayana Kalavala | adc6ce3 | 2017-07-17 17:19:11 -0700 | [diff] [blame] | 132 | CAM_ERR(CAM_ICP, "invalid elf fw file"); |
Lakshmi Narayana Kalavala | 85c4035 | 2017-05-15 16:19:13 -0700 | [diff] [blame] | 133 | return -EINVAL; |
| 134 | } |
| 135 | |
| 136 | return rc; |
| 137 | } |
| 138 | |
| 139 | static int32_t cam_icp_program_fw(const uint8_t *elf, |
| 140 | struct cam_a5_device_core_info *core_info) |
| 141 | { |
| 142 | int32_t rc = 0; |
| 143 | uint32_t num_prg_hdrs; |
| 144 | unsigned char *icp_prg_hdr_tbl; |
| 145 | int32_t i = 0; |
| 146 | u8 *dest; |
| 147 | u8 *src; |
| 148 | struct elf32_hdr *elf_hdr; |
| 149 | struct elf32_phdr *prg_hdr; |
| 150 | |
| 151 | elf_hdr = (struct elf32_hdr *)elf; |
| 152 | num_prg_hdrs = elf_hdr->e_phnum; |
| 153 | icp_prg_hdr_tbl = (unsigned char *)elf + elf_hdr->e_phoff; |
| 154 | prg_hdr = (struct elf32_phdr *)&icp_prg_hdr_tbl[0]; |
| 155 | |
| 156 | if (!prg_hdr) { |
Lakshmi Narayana Kalavala | adc6ce3 | 2017-07-17 17:19:11 -0700 | [diff] [blame] | 157 | CAM_ERR(CAM_ICP, "failed to get elf program header attr"); |
Lakshmi Narayana Kalavala | 85c4035 | 2017-05-15 16:19:13 -0700 | [diff] [blame] | 158 | return -EINVAL; |
| 159 | } |
| 160 | |
| 161 | for (i = 0; i < num_prg_hdrs; i++, prg_hdr++) { |
| 162 | if (prg_hdr->p_flags == 0) |
| 163 | continue; |
| 164 | |
Lakshmi Narayana Kalavala | adc6ce3 | 2017-07-17 17:19:11 -0700 | [diff] [blame] | 165 | CAM_DBG(CAM_ICP, "Loading FW header size: %u", |
| 166 | prg_hdr->p_filesz); |
Lakshmi Narayana Kalavala | 85c4035 | 2017-05-15 16:19:13 -0700 | [diff] [blame] | 167 | if (prg_hdr->p_filesz != 0) { |
| 168 | src = (u8 *)((u8 *)elf + prg_hdr->p_offset); |
| 169 | dest = (u8 *)(((u8 *)core_info->fw_kva_addr) + |
| 170 | prg_hdr->p_vaddr); |
| 171 | |
| 172 | memcpy_toio(dest, src, prg_hdr->p_filesz); |
Lakshmi Narayana Kalavala | 85c4035 | 2017-05-15 16:19:13 -0700 | [diff] [blame] | 173 | } |
| 174 | } |
| 175 | |
| 176 | return rc; |
| 177 | } |
| 178 | |
| 179 | static int32_t cam_a5_download_fw(void *device_priv) |
| 180 | { |
| 181 | int32_t rc = 0; |
| 182 | uint32_t fw_size; |
| 183 | const uint8_t *fw_start = NULL; |
| 184 | struct cam_hw_info *a5_dev = device_priv; |
| 185 | struct cam_hw_soc_info *soc_info = NULL; |
| 186 | struct cam_a5_device_core_info *core_info = NULL; |
| 187 | struct cam_a5_device_hw_info *hw_info = NULL; |
| 188 | struct platform_device *pdev = NULL; |
| 189 | struct a5_soc_info *cam_a5_soc_info = NULL; |
| 190 | |
| 191 | if (!device_priv) { |
Lakshmi Narayana Kalavala | adc6ce3 | 2017-07-17 17:19:11 -0700 | [diff] [blame] | 192 | CAM_ERR(CAM_ICP, "Invalid cam_dev_info"); |
Lakshmi Narayana Kalavala | 85c4035 | 2017-05-15 16:19:13 -0700 | [diff] [blame] | 193 | return -EINVAL; |
| 194 | } |
| 195 | |
| 196 | soc_info = &a5_dev->soc_info; |
| 197 | core_info = (struct cam_a5_device_core_info *)a5_dev->core_info; |
| 198 | hw_info = core_info->a5_hw_info; |
| 199 | pdev = soc_info->pdev; |
| 200 | cam_a5_soc_info = soc_info->soc_private; |
| 201 | |
| 202 | rc = request_firmware(&core_info->fw_elf, "CAMERA_ICP.elf", &pdev->dev); |
Lakshmi Narayana Kalavala | adc6ce3 | 2017-07-17 17:19:11 -0700 | [diff] [blame] | 203 | if (rc) { |
| 204 | CAM_ERR(CAM_ICP, "Failed to locate fw: %d", rc); |
Lakshmi Narayana Kalavala | 85c4035 | 2017-05-15 16:19:13 -0700 | [diff] [blame] | 205 | return rc; |
| 206 | } |
| 207 | |
| 208 | if (!core_info->fw_elf) { |
Lakshmi Narayana Kalavala | adc6ce3 | 2017-07-17 17:19:11 -0700 | [diff] [blame] | 209 | CAM_ERR(CAM_ICP, "Invalid elf size"); |
Lakshmi Narayana Kalavala | 85c4035 | 2017-05-15 16:19:13 -0700 | [diff] [blame] | 210 | return -EINVAL; |
| 211 | } |
| 212 | |
| 213 | fw_start = core_info->fw_elf->data; |
| 214 | rc = cam_icp_validate_fw(fw_start); |
Lakshmi Narayana Kalavala | adc6ce3 | 2017-07-17 17:19:11 -0700 | [diff] [blame] | 215 | if (rc) { |
| 216 | CAM_ERR(CAM_ICP, "fw elf validation failed"); |
Lakshmi Narayana Kalavala | 85c4035 | 2017-05-15 16:19:13 -0700 | [diff] [blame] | 217 | return -EINVAL; |
| 218 | } |
| 219 | |
| 220 | rc = cam_icp_get_fw_size(fw_start, &fw_size); |
Lakshmi Narayana Kalavala | adc6ce3 | 2017-07-17 17:19:11 -0700 | [diff] [blame] | 221 | if (rc) { |
| 222 | CAM_ERR(CAM_ICP, "unable to get fw size"); |
Lakshmi Narayana Kalavala | 85c4035 | 2017-05-15 16:19:13 -0700 | [diff] [blame] | 223 | return rc; |
| 224 | } |
Lakshmi Narayana Kalavala | 85c4035 | 2017-05-15 16:19:13 -0700 | [diff] [blame] | 225 | |
| 226 | if (core_info->fw_buf_len < fw_size) { |
Lakshmi Narayana Kalavala | adc6ce3 | 2017-07-17 17:19:11 -0700 | [diff] [blame] | 227 | CAM_ERR(CAM_ICP, "mismatch in fw size: %u %llu", |
| 228 | fw_size, core_info->fw_buf_len); |
Lakshmi Narayana Kalavala | 85c4035 | 2017-05-15 16:19:13 -0700 | [diff] [blame] | 229 | goto fw_alloc_failed; |
| 230 | } |
| 231 | |
Lakshmi Narayana Kalavala | 85c4035 | 2017-05-15 16:19:13 -0700 | [diff] [blame] | 232 | rc = cam_icp_program_fw(fw_start, core_info); |
Lakshmi Narayana Kalavala | adc6ce3 | 2017-07-17 17:19:11 -0700 | [diff] [blame] | 233 | if (rc) { |
| 234 | CAM_ERR(CAM_ICP, "fw program is failed"); |
Lakshmi Narayana Kalavala | 85c4035 | 2017-05-15 16:19:13 -0700 | [diff] [blame] | 235 | goto fw_program_failed; |
| 236 | } |
| 237 | |
| 238 | return 0; |
| 239 | fw_program_failed: |
| 240 | fw_alloc_failed: |
| 241 | return rc; |
| 242 | } |
| 243 | |
| 244 | int cam_a5_init_hw(void *device_priv, |
| 245 | void *init_hw_args, uint32_t arg_size) |
| 246 | { |
| 247 | struct cam_hw_info *a5_dev = device_priv; |
| 248 | struct cam_hw_soc_info *soc_info = NULL; |
| 249 | struct cam_a5_device_core_info *core_info = NULL; |
| 250 | struct cam_icp_cpas_vote cpas_vote; |
| 251 | int rc = 0; |
| 252 | |
| 253 | if (!device_priv) { |
Lakshmi Narayana Kalavala | adc6ce3 | 2017-07-17 17:19:11 -0700 | [diff] [blame] | 254 | CAM_ERR(CAM_ICP, "Invalid cam_dev_info"); |
Lakshmi Narayana Kalavala | 85c4035 | 2017-05-15 16:19:13 -0700 | [diff] [blame] | 255 | return -EINVAL; |
| 256 | } |
| 257 | |
| 258 | soc_info = &a5_dev->soc_info; |
| 259 | core_info = (struct cam_a5_device_core_info *)a5_dev->core_info; |
| 260 | |
| 261 | if ((!soc_info) || (!core_info)) { |
Lakshmi Narayana Kalavala | adc6ce3 | 2017-07-17 17:19:11 -0700 | [diff] [blame] | 262 | CAM_ERR(CAM_ICP, "soc_info: %pK core_info: %pK", |
| 263 | soc_info, core_info); |
Lakshmi Narayana Kalavala | 85c4035 | 2017-05-15 16:19:13 -0700 | [diff] [blame] | 264 | return -EINVAL; |
| 265 | } |
| 266 | |
| 267 | cpas_vote.ahb_vote.type = CAM_VOTE_ABSOLUTE; |
Pavan Kumar Chilamkurthi | 7e7607b | 2017-06-22 20:02:50 -0700 | [diff] [blame] | 268 | cpas_vote.ahb_vote.vote.level = CAM_SVS_VOTE; |
Lakshmi Narayana Kalavala | 85c4035 | 2017-05-15 16:19:13 -0700 | [diff] [blame] | 269 | cpas_vote.axi_vote.compressed_bw = ICP_TURBO_VOTE; |
| 270 | cpas_vote.axi_vote.uncompressed_bw = ICP_TURBO_VOTE; |
| 271 | |
| 272 | rc = cam_cpas_start(core_info->cpas_handle, |
| 273 | &cpas_vote.ahb_vote, &cpas_vote.axi_vote); |
Lakshmi Narayana Kalavala | c2fac45 | 2017-06-12 12:38:07 -0700 | [diff] [blame] | 274 | if (rc) { |
Lakshmi Narayana Kalavala | adc6ce3 | 2017-07-17 17:19:11 -0700 | [diff] [blame] | 275 | CAM_ERR(CAM_ICP, "cpass start failed: %d", rc); |
Lakshmi Narayana Kalavala | 85c4035 | 2017-05-15 16:19:13 -0700 | [diff] [blame] | 276 | return rc; |
| 277 | } |
Lakshmi Narayana Kalavala | c2fac45 | 2017-06-12 12:38:07 -0700 | [diff] [blame] | 278 | core_info->cpas_start = true; |
Lakshmi Narayana Kalavala | 85c4035 | 2017-05-15 16:19:13 -0700 | [diff] [blame] | 279 | |
| 280 | rc = cam_a5_enable_soc_resources(soc_info); |
Lakshmi Narayana Kalavala | c2fac45 | 2017-06-12 12:38:07 -0700 | [diff] [blame] | 281 | if (rc) { |
Lakshmi Narayana Kalavala | adc6ce3 | 2017-07-17 17:19:11 -0700 | [diff] [blame] | 282 | CAM_ERR(CAM_ICP, "soc enable is failed: %d", rc); |
Lakshmi Narayana Kalavala | c2fac45 | 2017-06-12 12:38:07 -0700 | [diff] [blame] | 283 | if (cam_cpas_stop(core_info->cpas_handle)) |
Lakshmi Narayana Kalavala | adc6ce3 | 2017-07-17 17:19:11 -0700 | [diff] [blame] | 284 | CAM_ERR(CAM_ICP, "cpas stop is failed"); |
Lakshmi Narayana Kalavala | c2fac45 | 2017-06-12 12:38:07 -0700 | [diff] [blame] | 285 | else |
| 286 | core_info->cpas_start = false; |
Lakshmi Narayana Kalavala | 85c4035 | 2017-05-15 16:19:13 -0700 | [diff] [blame] | 287 | } |
| 288 | |
Lakshmi Narayana Kalavala | c2fac45 | 2017-06-12 12:38:07 -0700 | [diff] [blame] | 289 | return rc; |
Lakshmi Narayana Kalavala | 85c4035 | 2017-05-15 16:19:13 -0700 | [diff] [blame] | 290 | } |
| 291 | |
| 292 | int cam_a5_deinit_hw(void *device_priv, |
| 293 | void *init_hw_args, uint32_t arg_size) |
| 294 | { |
| 295 | struct cam_hw_info *a5_dev = device_priv; |
| 296 | struct cam_hw_soc_info *soc_info = NULL; |
| 297 | struct cam_a5_device_core_info *core_info = NULL; |
| 298 | int rc = 0; |
| 299 | |
| 300 | if (!device_priv) { |
Lakshmi Narayana Kalavala | adc6ce3 | 2017-07-17 17:19:11 -0700 | [diff] [blame] | 301 | CAM_ERR(CAM_ICP, "Invalid cam_dev_info"); |
Lakshmi Narayana Kalavala | 85c4035 | 2017-05-15 16:19:13 -0700 | [diff] [blame] | 302 | return -EINVAL; |
| 303 | } |
| 304 | |
| 305 | soc_info = &a5_dev->soc_info; |
| 306 | core_info = (struct cam_a5_device_core_info *)a5_dev->core_info; |
| 307 | if ((!soc_info) || (!core_info)) { |
Lakshmi Narayana Kalavala | adc6ce3 | 2017-07-17 17:19:11 -0700 | [diff] [blame] | 308 | CAM_ERR(CAM_ICP, "soc_info = %pK core_info = %pK", |
| 309 | soc_info, core_info); |
Lakshmi Narayana Kalavala | 85c4035 | 2017-05-15 16:19:13 -0700 | [diff] [blame] | 310 | return -EINVAL; |
| 311 | } |
| 312 | |
| 313 | rc = cam_a5_disable_soc_resources(soc_info); |
Lakshmi Narayana Kalavala | c2fac45 | 2017-06-12 12:38:07 -0700 | [diff] [blame] | 314 | if (rc) |
Lakshmi Narayana Kalavala | adc6ce3 | 2017-07-17 17:19:11 -0700 | [diff] [blame] | 315 | CAM_ERR(CAM_ICP, "soc disable is failed: %d", rc); |
Lakshmi Narayana Kalavala | 85c4035 | 2017-05-15 16:19:13 -0700 | [diff] [blame] | 316 | |
Lakshmi Narayana Kalavala | c2fac45 | 2017-06-12 12:38:07 -0700 | [diff] [blame] | 317 | if (core_info->cpas_start) { |
| 318 | if (cam_cpas_stop(core_info->cpas_handle)) |
Lakshmi Narayana Kalavala | adc6ce3 | 2017-07-17 17:19:11 -0700 | [diff] [blame] | 319 | CAM_ERR(CAM_ICP, "cpas stop is failed"); |
Lakshmi Narayana Kalavala | c2fac45 | 2017-06-12 12:38:07 -0700 | [diff] [blame] | 320 | else |
| 321 | core_info->cpas_start = false; |
| 322 | } |
Lakshmi Narayana Kalavala | 85c4035 | 2017-05-15 16:19:13 -0700 | [diff] [blame] | 323 | |
Lakshmi Narayana Kalavala | c2fac45 | 2017-06-12 12:38:07 -0700 | [diff] [blame] | 324 | return rc; |
Lakshmi Narayana Kalavala | 85c4035 | 2017-05-15 16:19:13 -0700 | [diff] [blame] | 325 | } |
| 326 | |
| 327 | irqreturn_t cam_a5_irq(int irq_num, void *data) |
| 328 | { |
| 329 | struct cam_hw_info *a5_dev = data; |
| 330 | struct cam_hw_soc_info *soc_info = NULL; |
| 331 | struct cam_a5_device_core_info *core_info = NULL; |
| 332 | struct cam_a5_device_hw_info *hw_info = NULL; |
| 333 | uint32_t irq_status = 0; |
| 334 | |
| 335 | if (!data) { |
Lakshmi Narayana Kalavala | adc6ce3 | 2017-07-17 17:19:11 -0700 | [diff] [blame] | 336 | CAM_ERR(CAM_ICP, "Invalid cam_dev_info or query_cap args"); |
Lakshmi Narayana Kalavala | 85c4035 | 2017-05-15 16:19:13 -0700 | [diff] [blame] | 337 | return IRQ_HANDLED; |
| 338 | } |
| 339 | |
| 340 | soc_info = &a5_dev->soc_info; |
| 341 | core_info = (struct cam_a5_device_core_info *)a5_dev->core_info; |
| 342 | hw_info = core_info->a5_hw_info; |
| 343 | |
| 344 | irq_status = cam_io_r_mb(soc_info->reg_map[A5_SIERRA_BASE].mem_base + |
| 345 | core_info->a5_hw_info->a5_host_int_status); |
| 346 | |
| 347 | cam_io_w_mb(irq_status, |
| 348 | soc_info->reg_map[A5_SIERRA_BASE].mem_base + |
| 349 | core_info->a5_hw_info->a5_host_int_clr); |
| 350 | |
Lakshmi Narayana Kalavala | 85c4035 | 2017-05-15 16:19:13 -0700 | [diff] [blame] | 351 | if ((irq_status & A5_WDT_0) || |
| 352 | (irq_status & A5_WDT_1)) { |
Lakshmi Narayana Kalavala | adc6ce3 | 2017-07-17 17:19:11 -0700 | [diff] [blame] | 353 | CAM_ERR_RATE_LIMIT(CAM_ICP, "watch dog interrupt from A5"); |
Lakshmi Narayana Kalavala | 85c4035 | 2017-05-15 16:19:13 -0700 | [diff] [blame] | 354 | } |
| 355 | |
| 356 | if (core_info->irq_cb.icp_hw_mgr_cb) |
| 357 | core_info->irq_cb.icp_hw_mgr_cb(irq_status, |
| 358 | core_info->irq_cb.data); |
Lakshmi Narayana Kalavala | adc6ce3 | 2017-07-17 17:19:11 -0700 | [diff] [blame] | 359 | |
Lakshmi Narayana Kalavala | 85c4035 | 2017-05-15 16:19:13 -0700 | [diff] [blame] | 360 | return IRQ_HANDLED; |
| 361 | } |
| 362 | |
| 363 | int cam_a5_process_cmd(void *device_priv, uint32_t cmd_type, |
| 364 | void *cmd_args, uint32_t arg_size) |
| 365 | { |
| 366 | struct cam_hw_info *a5_dev = device_priv; |
| 367 | struct cam_hw_soc_info *soc_info = NULL; |
| 368 | struct cam_a5_device_core_info *core_info = NULL; |
| 369 | struct cam_a5_device_hw_info *hw_info = NULL; |
| 370 | int rc = 0; |
| 371 | |
| 372 | if (!device_priv) { |
Lakshmi Narayana Kalavala | adc6ce3 | 2017-07-17 17:19:11 -0700 | [diff] [blame] | 373 | CAM_ERR(CAM_ICP, "Invalid arguments"); |
Lakshmi Narayana Kalavala | 85c4035 | 2017-05-15 16:19:13 -0700 | [diff] [blame] | 374 | return -EINVAL; |
| 375 | } |
| 376 | |
| 377 | if (cmd_type >= CAM_ICP_A5_CMD_MAX) { |
Lakshmi Narayana Kalavala | adc6ce3 | 2017-07-17 17:19:11 -0700 | [diff] [blame] | 378 | CAM_ERR(CAM_ICP, "Invalid command : %x", cmd_type); |
Lakshmi Narayana Kalavala | 85c4035 | 2017-05-15 16:19:13 -0700 | [diff] [blame] | 379 | return -EINVAL; |
| 380 | } |
| 381 | |
| 382 | soc_info = &a5_dev->soc_info; |
| 383 | core_info = (struct cam_a5_device_core_info *)a5_dev->core_info; |
| 384 | hw_info = core_info->a5_hw_info; |
| 385 | |
| 386 | switch (cmd_type) { |
| 387 | case CAM_ICP_A5_CMD_FW_DOWNLOAD: |
| 388 | rc = cam_a5_download_fw(device_priv); |
| 389 | |
| 390 | break; |
| 391 | case CAM_ICP_A5_CMD_SET_FW_BUF: { |
| 392 | struct cam_icp_a5_set_fw_buf_info *fw_buf_info = cmd_args; |
| 393 | |
| 394 | if (!cmd_args) { |
Lakshmi Narayana Kalavala | adc6ce3 | 2017-07-17 17:19:11 -0700 | [diff] [blame] | 395 | CAM_ERR(CAM_ICP, "cmd args NULL"); |
Lakshmi Narayana Kalavala | 85c4035 | 2017-05-15 16:19:13 -0700 | [diff] [blame] | 396 | return -EINVAL; |
| 397 | } |
| 398 | |
| 399 | core_info->fw_buf = fw_buf_info->iova; |
| 400 | core_info->fw_kva_addr = fw_buf_info->kva; |
| 401 | core_info->fw_buf_len = fw_buf_info->len; |
| 402 | |
Lakshmi Narayana Kalavala | adc6ce3 | 2017-07-17 17:19:11 -0700 | [diff] [blame] | 403 | CAM_DBG(CAM_ICP, "fw buf info = %x %llx %lld", |
| 404 | core_info->fw_buf, core_info->fw_kva_addr, |
| 405 | core_info->fw_buf_len); |
Lakshmi Narayana Kalavala | 85c4035 | 2017-05-15 16:19:13 -0700 | [diff] [blame] | 406 | break; |
| 407 | } |
| 408 | case CAM_ICP_A5_SET_IRQ_CB: { |
| 409 | struct cam_icp_a5_set_irq_cb *irq_cb = cmd_args; |
| 410 | |
| 411 | if (!cmd_args) { |
Lakshmi Narayana Kalavala | adc6ce3 | 2017-07-17 17:19:11 -0700 | [diff] [blame] | 412 | CAM_ERR(CAM_ICP, "cmd args NULL"); |
Lakshmi Narayana Kalavala | 85c4035 | 2017-05-15 16:19:13 -0700 | [diff] [blame] | 413 | return -EINVAL; |
| 414 | } |
| 415 | |
| 416 | core_info->irq_cb.icp_hw_mgr_cb = irq_cb->icp_hw_mgr_cb; |
| 417 | core_info->irq_cb.data = irq_cb->data; |
| 418 | break; |
| 419 | } |
| 420 | |
| 421 | case CAM_ICP_A5_SEND_INIT: |
| 422 | hfi_send_system_cmd(HFI_CMD_SYS_INIT, 0, 0); |
| 423 | break; |
| 424 | case CAM_ICP_A5_CMD_VOTE_CPAS: { |
| 425 | struct cam_icp_cpas_vote *cpas_vote = cmd_args; |
| 426 | |
| 427 | if (!cmd_args) { |
Lakshmi Narayana Kalavala | adc6ce3 | 2017-07-17 17:19:11 -0700 | [diff] [blame] | 428 | CAM_ERR(CAM_ICP, "cmd args NULL"); |
Lakshmi Narayana Kalavala | 85c4035 | 2017-05-15 16:19:13 -0700 | [diff] [blame] | 429 | return -EINVAL; |
| 430 | } |
| 431 | |
| 432 | cam_a5_cpas_vote(core_info, cpas_vote); |
| 433 | break; |
| 434 | } |
| 435 | |
| 436 | case CAM_ICP_A5_CMD_CPAS_START: { |
| 437 | struct cam_icp_cpas_vote *cpas_vote = cmd_args; |
| 438 | |
| 439 | if (!cmd_args) { |
Lakshmi Narayana Kalavala | adc6ce3 | 2017-07-17 17:19:11 -0700 | [diff] [blame] | 440 | CAM_ERR(CAM_ICP, "cmd args NULL"); |
Lakshmi Narayana Kalavala | 85c4035 | 2017-05-15 16:19:13 -0700 | [diff] [blame] | 441 | return -EINVAL; |
| 442 | } |
| 443 | |
Lakshmi Narayana Kalavala | c2fac45 | 2017-06-12 12:38:07 -0700 | [diff] [blame] | 444 | if (!core_info->cpas_start) { |
| 445 | rc = cam_cpas_start(core_info->cpas_handle, |
| 446 | &cpas_vote->ahb_vote, |
| 447 | &cpas_vote->axi_vote); |
| 448 | core_info->cpas_start = true; |
| 449 | } |
Lakshmi Narayana Kalavala | 85c4035 | 2017-05-15 16:19:13 -0700 | [diff] [blame] | 450 | break; |
| 451 | } |
| 452 | |
| 453 | case CAM_ICP_A5_CMD_CPAS_STOP: |
Lakshmi Narayana Kalavala | c2fac45 | 2017-06-12 12:38:07 -0700 | [diff] [blame] | 454 | if (core_info->cpas_start) { |
| 455 | cam_cpas_stop(core_info->cpas_handle); |
| 456 | core_info->cpas_start = false; |
| 457 | } |
Lakshmi Narayana Kalavala | 85c4035 | 2017-05-15 16:19:13 -0700 | [diff] [blame] | 458 | break; |
| 459 | default: |
| 460 | break; |
| 461 | } |
| 462 | |
| 463 | return rc; |
| 464 | } |