Googler | 9398cc3 | 2022-12-02 17:21:52 +0800 | [diff] [blame^] | 1 | // SPDX-License-Identifier: GPL-2.0 |
Googler | 4f18c0c | 2022-09-20 17:23:36 +0800 | [diff] [blame] | 2 | /* |
Googler | 9398cc3 | 2022-12-02 17:21:52 +0800 | [diff] [blame^] | 3 | * Copyright (C) 2019 Amlogic, Inc. All rights reserved. |
Googler | 4f18c0c | 2022-09-20 17:23:36 +0800 | [diff] [blame] | 4 | * |
| 5 | */ |
| 6 | |
Googler | 9726be6 | 2022-12-14 05:53:31 +0000 | [diff] [blame] | 7 | /*#define DEBUG*/ |
| 8 | |
Googler | 4f18c0c | 2022-09-20 17:23:36 +0800 | [diff] [blame] | 9 | #include <linux/of.h> |
| 10 | #include <linux/io.h> |
| 11 | #include <linux/of_address.h> |
| 12 | #include <linux/platform_device.h> |
Googler | 9398cc3 | 2022-12-02 17:21:52 +0800 | [diff] [blame^] | 13 | #include <linux/module.h> |
Googler | 4f18c0c | 2022-09-20 17:23:36 +0800 | [diff] [blame] | 14 | |
Googler | 38bda47 | 2022-08-19 10:07:08 -0700 | [diff] [blame] | 15 | #include "regs.h" |
Googler | 4f18c0c | 2022-09-20 17:23:36 +0800 | [diff] [blame] | 16 | #include "iomap.h" |
Googler | 38bda47 | 2022-08-19 10:07:08 -0700 | [diff] [blame] | 17 | #include "audio_aed_reg_list.h" |
| 18 | #include "audio_top_reg_list.h" |
Googler | 4f18c0c | 2022-09-20 17:23:36 +0800 | [diff] [blame] | 19 | |
| 20 | #define DEV_NAME "auge_snd_iomap" |
| 21 | |
| 22 | static void __iomem *aml_snd_reg_map[IO_MAX]; |
Googler | 9726be6 | 2022-12-14 05:53:31 +0000 | [diff] [blame] | 23 | |
| 24 | #ifdef DEBUG |
Googler | 38bda47 | 2022-08-19 10:07:08 -0700 | [diff] [blame] | 25 | static void register_debug(u32 base_type, unsigned int reg, unsigned int val) |
| 26 | { |
| 27 | if (base_type == IO_AUDIO_BUS) { |
Googler | 9726be6 | 2022-12-14 05:53:31 +0000 | [diff] [blame] | 28 | pr_debug("audio top reg:[%s] addr: [%#x] val: [%#x]\n", |
Googler | 9398cc3 | 2022-12-02 17:21:52 +0800 | [diff] [blame^] | 29 | top_register_table[reg].name, |
| 30 | top_register_table[reg].addr, val); |
Googler | 38bda47 | 2022-08-19 10:07:08 -0700 | [diff] [blame] | 31 | } else if (base_type == IO_EQDRC_BUS) { |
Googler | 9726be6 | 2022-12-14 05:53:31 +0000 | [diff] [blame] | 32 | pr_debug("audio aed reg:[%s] addr: [%#x] val: [%#x]\n", |
Googler | 9398cc3 | 2022-12-02 17:21:52 +0800 | [diff] [blame^] | 33 | aed_register_table[reg].name, |
| 34 | aed_register_table[reg].addr, val); |
Googler | 38bda47 | 2022-08-19 10:07:08 -0700 | [diff] [blame] | 35 | } |
| 36 | } |
| 37 | #endif |
Googler | 4f18c0c | 2022-09-20 17:23:36 +0800 | [diff] [blame] | 38 | |
| 39 | static int aml_snd_read(u32 base_type, unsigned int reg, unsigned int *val) |
| 40 | { |
| 41 | if (base_type < IO_MAX) { |
| 42 | *val = readl((aml_snd_reg_map[base_type] + (reg << 2))); |
| 43 | |
| 44 | return 0; |
| 45 | } |
| 46 | |
| 47 | return -1; |
| 48 | } |
| 49 | |
| 50 | static void aml_snd_write(u32 base_type, unsigned int reg, unsigned int val) |
| 51 | { |
Googler | 4f18c0c | 2022-09-20 17:23:36 +0800 | [diff] [blame] | 52 | if (base_type < IO_MAX) { |
| 53 | writel(val, (aml_snd_reg_map[base_type] + (reg << 2))); |
Googler | 9726be6 | 2022-12-14 05:53:31 +0000 | [diff] [blame] | 54 | #ifdef DEBUG |
Googler | 38bda47 | 2022-08-19 10:07:08 -0700 | [diff] [blame] | 55 | register_debug(base_type, reg, val); |
| 56 | #endif |
Googler | 4f18c0c | 2022-09-20 17:23:36 +0800 | [diff] [blame] | 57 | return; |
| 58 | } |
| 59 | |
| 60 | pr_err("write snd reg %x error\n", reg); |
| 61 | } |
| 62 | |
Googler | 38bda47 | 2022-08-19 10:07:08 -0700 | [diff] [blame] | 63 | static void aml_snd_update_bits(u32 base_type, unsigned int reg, |
| 64 | unsigned int mask, unsigned int val) |
Googler | 4f18c0c | 2022-09-20 17:23:36 +0800 | [diff] [blame] | 65 | { |
| 66 | if (base_type < IO_MAX) { |
| 67 | unsigned int tmp, orig; |
| 68 | |
| 69 | if (aml_snd_read(base_type, reg, &orig) == 0) { |
| 70 | tmp = orig & ~mask; |
| 71 | tmp |= val & mask; |
| 72 | aml_snd_write(base_type, reg, tmp); |
| 73 | |
| 74 | return; |
| 75 | } |
| 76 | } |
| 77 | pr_err("write snd reg %x error\n", reg); |
Googler | 4f18c0c | 2022-09-20 17:23:36 +0800 | [diff] [blame] | 78 | } |
| 79 | |
Googler | 9398cc3 | 2022-12-02 17:21:52 +0800 | [diff] [blame^] | 80 | int aml_pdm_read(int id, unsigned int reg) |
Googler | 4f18c0c | 2022-09-20 17:23:36 +0800 | [diff] [blame] | 81 | { |
| 82 | int ret, val = 0; |
Googler | 9398cc3 | 2022-12-02 17:21:52 +0800 | [diff] [blame^] | 83 | if (id == 0) { |
| 84 | ret = aml_snd_read(IO_PDM_BUS, reg, &val); |
| 85 | if (ret) { |
| 86 | pr_err("read pdm reg %x error %d\n", reg, ret); |
| 87 | return -1; |
| 88 | } |
| 89 | } else if (id == 1) { |
| 90 | ret = aml_snd_read(IO_PDM_BUS_B, reg, &val); |
| 91 | if (ret) { |
| 92 | pr_err("read pdm reg %x error %d\n", reg, ret); |
| 93 | return -1; |
| 94 | } |
Googler | 4f18c0c | 2022-09-20 17:23:36 +0800 | [diff] [blame] | 95 | } |
| 96 | return val; |
| 97 | } |
| 98 | EXPORT_SYMBOL(aml_pdm_read); |
| 99 | |
Googler | 9398cc3 | 2022-12-02 17:21:52 +0800 | [diff] [blame^] | 100 | void aml_pdm_write(int id, unsigned int reg, unsigned int val) |
Googler | 4f18c0c | 2022-09-20 17:23:36 +0800 | [diff] [blame] | 101 | { |
Googler | 9398cc3 | 2022-12-02 17:21:52 +0800 | [diff] [blame^] | 102 | if (id == 0) |
| 103 | aml_snd_write(IO_PDM_BUS, reg, val); |
| 104 | else if (id == 1) |
| 105 | aml_snd_write(IO_PDM_BUS_B, reg, val); |
Googler | 4f18c0c | 2022-09-20 17:23:36 +0800 | [diff] [blame] | 106 | } |
| 107 | EXPORT_SYMBOL(aml_pdm_write); |
| 108 | |
Googler | 9398cc3 | 2022-12-02 17:21:52 +0800 | [diff] [blame^] | 109 | void aml_pdm_update_bits(int id, unsigned int reg, unsigned int mask, |
Googler | 38bda47 | 2022-08-19 10:07:08 -0700 | [diff] [blame] | 110 | unsigned int val) |
Googler | 4f18c0c | 2022-09-20 17:23:36 +0800 | [diff] [blame] | 111 | { |
Googler | 9398cc3 | 2022-12-02 17:21:52 +0800 | [diff] [blame^] | 112 | if (id == 0) |
| 113 | aml_snd_update_bits(IO_PDM_BUS, reg, mask, val); |
| 114 | else if (id == 1) |
| 115 | aml_snd_update_bits(IO_PDM_BUS_B, reg, mask, val); |
Googler | 4f18c0c | 2022-09-20 17:23:36 +0800 | [diff] [blame] | 116 | } |
| 117 | EXPORT_SYMBOL(aml_pdm_update_bits); |
| 118 | |
| 119 | int audiobus_read(unsigned int reg) |
| 120 | { |
| 121 | int ret, val = 0; |
| 122 | |
| 123 | ret = aml_snd_read(IO_AUDIO_BUS, reg, &val); |
| 124 | |
| 125 | if (ret) { |
| 126 | pr_err("read audio reg %x error %d\n", reg, ret); |
| 127 | return -1; |
| 128 | } |
| 129 | return val; |
| 130 | } |
| 131 | EXPORT_SYMBOL(audiobus_read); |
| 132 | |
| 133 | void audiobus_write(unsigned int reg, unsigned int val) |
| 134 | { |
| 135 | aml_snd_write(IO_AUDIO_BUS, reg, val); |
| 136 | } |
| 137 | EXPORT_SYMBOL(audiobus_write); |
| 138 | |
Googler | 38bda47 | 2022-08-19 10:07:08 -0700 | [diff] [blame] | 139 | void audiobus_update_bits(unsigned int reg, unsigned int mask, |
| 140 | unsigned int val) |
Googler | 4f18c0c | 2022-09-20 17:23:36 +0800 | [diff] [blame] | 141 | { |
| 142 | aml_snd_update_bits(IO_AUDIO_BUS, reg, mask, val); |
| 143 | } |
| 144 | EXPORT_SYMBOL(audiobus_update_bits); |
| 145 | |
| 146 | int audiolocker_read(unsigned int reg) |
| 147 | { |
| 148 | int ret, val = 0; |
| 149 | |
| 150 | ret = aml_snd_read(IO_AUDIO_LOCKER, reg, &val); |
| 151 | |
| 152 | if (ret) { |
| 153 | pr_err("read reg %x error %d\n", reg, ret); |
| 154 | return -1; |
| 155 | } |
| 156 | return val; |
| 157 | } |
| 158 | EXPORT_SYMBOL(audiolocker_read); |
| 159 | |
| 160 | void audiolocker_write(unsigned int reg, unsigned int val) |
| 161 | { |
| 162 | aml_snd_write(IO_AUDIO_LOCKER, reg, val); |
| 163 | } |
| 164 | EXPORT_SYMBOL(audiolocker_write); |
| 165 | |
Googler | 38bda47 | 2022-08-19 10:07:08 -0700 | [diff] [blame] | 166 | void audiolocker_update_bits(unsigned int reg, unsigned int mask, |
| 167 | unsigned int val) |
Googler | 4f18c0c | 2022-09-20 17:23:36 +0800 | [diff] [blame] | 168 | { |
| 169 | aml_snd_update_bits(IO_AUDIO_LOCKER, reg, mask, val); |
| 170 | } |
| 171 | EXPORT_SYMBOL(audiolocker_update_bits); |
| 172 | |
| 173 | int eqdrc_read(unsigned int reg) |
| 174 | { |
| 175 | int ret, val = 0; |
| 176 | |
| 177 | ret = aml_snd_read(IO_EQDRC_BUS, reg, &val); |
| 178 | |
| 179 | if (ret) { |
| 180 | pr_err("read audio reg %x error %d\n", reg, ret); |
| 181 | return -1; |
| 182 | } |
| 183 | return val; |
| 184 | } |
| 185 | EXPORT_SYMBOL(eqdrc_read); |
| 186 | |
| 187 | void eqdrc_write(unsigned int reg, unsigned int val) |
| 188 | { |
| 189 | aml_snd_write(IO_EQDRC_BUS, reg, val); |
| 190 | } |
| 191 | EXPORT_SYMBOL(eqdrc_write); |
| 192 | |
Googler | 38bda47 | 2022-08-19 10:07:08 -0700 | [diff] [blame] | 193 | void eqdrc_update_bits(unsigned int reg, unsigned int mask, |
| 194 | unsigned int val) |
Googler | 4f18c0c | 2022-09-20 17:23:36 +0800 | [diff] [blame] | 195 | { |
| 196 | aml_snd_update_bits(IO_EQDRC_BUS, reg, mask, val); |
| 197 | } |
| 198 | EXPORT_SYMBOL(eqdrc_update_bits); |
| 199 | |
Googler | 4f18c0c | 2022-09-20 17:23:36 +0800 | [diff] [blame] | 200 | int vad_read(unsigned int reg) |
| 201 | { |
| 202 | int ret, val = 0; |
| 203 | |
| 204 | ret = aml_snd_read(IO_VAD, reg, &val); |
| 205 | |
| 206 | if (ret) { |
| 207 | pr_err("read audio reg %x error %d\n", reg, ret); |
| 208 | return -1; |
| 209 | } |
| 210 | return val; |
| 211 | } |
| 212 | EXPORT_SYMBOL(vad_read); |
| 213 | |
| 214 | void vad_write(unsigned int reg, unsigned int val) |
| 215 | { |
| 216 | aml_snd_write(IO_VAD, reg, val); |
| 217 | } |
| 218 | EXPORT_SYMBOL(vad_write); |
| 219 | |
Googler | 38bda47 | 2022-08-19 10:07:08 -0700 | [diff] [blame] | 220 | void vad_update_bits(unsigned int reg, unsigned int mask, |
| 221 | unsigned int val) |
Googler | 4f18c0c | 2022-09-20 17:23:36 +0800 | [diff] [blame] | 222 | { |
| 223 | aml_snd_update_bits(IO_VAD, reg, mask, val); |
| 224 | } |
| 225 | EXPORT_SYMBOL(vad_update_bits); |
| 226 | |
Googler | 38bda47 | 2022-08-19 10:07:08 -0700 | [diff] [blame] | 227 | unsigned int new_resample_read(enum resample_idx id, unsigned int reg) |
Googler | 4f18c0c | 2022-09-20 17:23:36 +0800 | [diff] [blame] | 228 | { |
Googler | 38bda47 | 2022-08-19 10:07:08 -0700 | [diff] [blame] | 229 | unsigned int val = 0; |
Googler | 4f18c0c | 2022-09-20 17:23:36 +0800 | [diff] [blame] | 230 | |
Googler | 38bda47 | 2022-08-19 10:07:08 -0700 | [diff] [blame] | 231 | if (id == RESAMPLE_A) |
| 232 | val = readl((aml_snd_reg_map[IO_RESAMPLEA] + |
| 233 | (reg << 2))); |
| 234 | else if (id == RESAMPLE_B) |
| 235 | val = readl((aml_snd_reg_map[IO_RESAMPLEB] + |
| 236 | (reg << 2))); |
Googler | 4f18c0c | 2022-09-20 17:23:36 +0800 | [diff] [blame] | 237 | |
Googler | 4f18c0c | 2022-09-20 17:23:36 +0800 | [diff] [blame] | 238 | return val; |
| 239 | } |
Googler | 4f18c0c | 2022-09-20 17:23:36 +0800 | [diff] [blame] | 240 | |
Googler | 38bda47 | 2022-08-19 10:07:08 -0700 | [diff] [blame] | 241 | void new_resample_write(enum resample_idx id, unsigned int reg, |
| 242 | unsigned int val) |
Googler | 4f18c0c | 2022-09-20 17:23:36 +0800 | [diff] [blame] | 243 | { |
Googler | 38bda47 | 2022-08-19 10:07:08 -0700 | [diff] [blame] | 244 | if (id == RESAMPLE_A) |
| 245 | writel(val, (aml_snd_reg_map[IO_RESAMPLEA] + (reg << 2))); |
| 246 | else if (id == RESAMPLE_B) |
| 247 | writel(val, (aml_snd_reg_map[IO_RESAMPLEB] + (reg << 2))); |
Googler | 4f18c0c | 2022-09-20 17:23:36 +0800 | [diff] [blame] | 248 | } |
Googler | 4f18c0c | 2022-09-20 17:23:36 +0800 | [diff] [blame] | 249 | |
Googler | 38bda47 | 2022-08-19 10:07:08 -0700 | [diff] [blame] | 250 | void new_resample_update_bits(enum resample_idx id, unsigned int reg, |
| 251 | unsigned int mask, unsigned int val) |
Googler | 4f18c0c | 2022-09-20 17:23:36 +0800 | [diff] [blame] | 252 | { |
Googler | 38bda47 | 2022-08-19 10:07:08 -0700 | [diff] [blame] | 253 | unsigned int tmp, orig; |
| 254 | |
| 255 | orig = new_resample_read(id, reg); |
| 256 | tmp = orig & ~mask; |
| 257 | tmp |= val & mask; |
| 258 | |
| 259 | new_resample_write(id, reg, tmp); |
Googler | 4f18c0c | 2022-09-20 17:23:36 +0800 | [diff] [blame] | 260 | } |
Googler | 4f18c0c | 2022-09-20 17:23:36 +0800 | [diff] [blame] | 261 | |
| 262 | static int snd_iomap_probe(struct platform_device *pdev) |
| 263 | { |
| 264 | struct resource res; |
| 265 | struct device_node *np, *child; |
| 266 | int i = 0; |
| 267 | int ret = 0; |
| 268 | |
| 269 | np = pdev->dev.of_node; |
| 270 | for_each_child_of_node(np, child) { |
| 271 | if (of_address_to_resource(child, 0, &res)) { |
| 272 | ret = -1; |
Googler | 9398cc3 | 2022-12-02 17:21:52 +0800 | [diff] [blame^] | 273 | pr_err("%s could not get resource", __func__); |
Googler | 4f18c0c | 2022-09-20 17:23:36 +0800 | [diff] [blame] | 274 | break; |
| 275 | } |
| 276 | aml_snd_reg_map[i] = |
| 277 | ioremap_nocache(res.start, resource_size(&res)); |
| 278 | pr_info("aml_snd_reg_map[%d], reg:%x, size:%x\n", |
| 279 | i, (u32)res.start, (u32)resource_size(&res)); |
| 280 | |
| 281 | i++; |
| 282 | } |
| 283 | pr_info("amlogic %s probe done\n", DEV_NAME); |
| 284 | |
| 285 | return ret; |
| 286 | } |
| 287 | |
| 288 | static const struct of_device_id snd_iomap_dt_match[] = { |
| 289 | { .compatible = "amlogic, snd-iomap" }, |
| 290 | {}, |
| 291 | }; |
| 292 | |
| 293 | static struct platform_driver snd_iomap_platform_driver = { |
| 294 | .probe = snd_iomap_probe, |
| 295 | .driver = { |
| 296 | .owner = THIS_MODULE, |
| 297 | .name = DEV_NAME, |
| 298 | .of_match_table = snd_iomap_dt_match, |
| 299 | }, |
| 300 | }; |
| 301 | |
| 302 | int __init auge_snd_iomap_init(void) |
| 303 | { |
Googler | 9398cc3 | 2022-12-02 17:21:52 +0800 | [diff] [blame^] | 304 | return platform_driver_register(&snd_iomap_platform_driver); |
Googler | 012a81c | 2022-09-15 14:55:24 +0800 | [diff] [blame] | 305 | } |
Googler | 9398cc3 | 2022-12-02 17:21:52 +0800 | [diff] [blame^] | 306 | |
| 307 | void __exit auge_snd_iomap_exit(void) |
| 308 | { |
| 309 | platform_driver_unregister(&snd_iomap_platform_driver); |
| 310 | } |
| 311 | |
| 312 | #ifndef MODULE |
Googler | 4f18c0c | 2022-09-20 17:23:36 +0800 | [diff] [blame] | 313 | core_initcall(auge_snd_iomap_init); |
Googler | 9398cc3 | 2022-12-02 17:21:52 +0800 | [diff] [blame^] | 314 | module_exit(auge_snd_iomap_exit); |
| 315 | #endif |