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336cfbb0 VK |
1 | /* |
2 | * sst_acpi.c - SST (LPE) driver init file for ACPI enumeration. | |
3 | * | |
4 | * Copyright (c) 2013, Intel Corporation. | |
5 | * | |
6 | * Authors: Ramesh Babu K V <Ramesh.Babu@intel.com> | |
7 | * Authors: Omair Mohammed Abdullah <omair.m.abdullah@intel.com> | |
8 | * | |
9 | * This program is free software; you can redistribute it and/or modify it | |
10 | * under the terms and conditions of the GNU General Public License, | |
11 | * version 2, as published by the Free Software Foundation. | |
12 | * | |
13 | * This program is distributed in the hope it will be useful, but WITHOUT | |
14 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
15 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for | |
16 | * more details. | |
17 | * | |
18 | * | |
19 | */ | |
20 | ||
21 | #include <linux/module.h> | |
22 | #include <linux/fs.h> | |
23 | #include <linux/interrupt.h> | |
24 | #include <linux/slab.h> | |
25 | #include <linux/io.h> | |
26 | #include <linux/miscdevice.h> | |
27 | #include <linux/platform_device.h> | |
28 | #include <linux/firmware.h> | |
29 | #include <linux/pm_runtime.h> | |
30 | #include <linux/pm_qos.h> | |
31 | #include <linux/acpi.h> | |
32 | #include <asm/platform_sst_audio.h> | |
33 | #include <sound/core.h> | |
34 | #include <sound/soc.h> | |
35 | #include <sound/compress_driver.h> | |
36 | #include <acpi/acbuffer.h> | |
37 | #include <acpi/platform/acenv.h> | |
38 | #include <acpi/platform/aclinux.h> | |
39 | #include <acpi/actypes.h> | |
40 | #include <acpi/acpi_bus.h> | |
41 | #include "../sst-mfld-platform.h" | |
2106241a | 42 | #include "../common/sst-dsp.h" |
336cfbb0 VK |
43 | #include "sst.h" |
44 | ||
45 | struct sst_machines { | |
de5f644e | 46 | char *codec_id; |
336cfbb0 VK |
47 | char board[32]; |
48 | char machine[32]; | |
49 | void (*machine_quirk)(void); | |
279e17ae | 50 | char firmware[FW_NAME_SIZE]; |
336cfbb0 VK |
51 | struct sst_platform_info *pdata; |
52 | ||
53 | }; | |
54 | ||
55 | /* LPE viewpoint addresses */ | |
56 | #define SST_BYT_IRAM_PHY_START 0xff2c0000 | |
57 | #define SST_BYT_IRAM_PHY_END 0xff2d4000 | |
58 | #define SST_BYT_DRAM_PHY_START 0xff300000 | |
59 | #define SST_BYT_DRAM_PHY_END 0xff320000 | |
60 | #define SST_BYT_IMR_VIRT_START 0xc0000000 /* virtual addr in LPE */ | |
61 | #define SST_BYT_IMR_VIRT_END 0xc01fffff | |
62 | #define SST_BYT_SHIM_PHY_ADDR 0xff340000 | |
63 | #define SST_BYT_MBOX_PHY_ADDR 0xff344000 | |
64 | #define SST_BYT_DMA0_PHY_ADDR 0xff298000 | |
65 | #define SST_BYT_DMA1_PHY_ADDR 0xff29c000 | |
66 | #define SST_BYT_SSP0_PHY_ADDR 0xff2a0000 | |
67 | #define SST_BYT_SSP2_PHY_ADDR 0xff2a2000 | |
68 | ||
69 | #define BYT_FW_MOD_TABLE_OFFSET 0x80000 | |
70 | #define BYT_FW_MOD_TABLE_SIZE 0x100 | |
71 | #define BYT_FW_MOD_OFFSET (BYT_FW_MOD_TABLE_OFFSET + BYT_FW_MOD_TABLE_SIZE) | |
72 | ||
73 | static const struct sst_info byt_fwparse_info = { | |
74 | .use_elf = false, | |
75 | .max_streams = 25, | |
76 | .iram_start = SST_BYT_IRAM_PHY_START, | |
77 | .iram_end = SST_BYT_IRAM_PHY_END, | |
78 | .iram_use = true, | |
79 | .dram_start = SST_BYT_DRAM_PHY_START, | |
80 | .dram_end = SST_BYT_DRAM_PHY_END, | |
81 | .dram_use = true, | |
82 | .imr_start = SST_BYT_IMR_VIRT_START, | |
83 | .imr_end = SST_BYT_IMR_VIRT_END, | |
84 | .imr_use = true, | |
85 | .mailbox_start = SST_BYT_MBOX_PHY_ADDR, | |
86 | .num_probes = 0, | |
87 | .lpe_viewpt_rqd = true, | |
88 | }; | |
89 | ||
90 | static const struct sst_ipc_info byt_ipc_info = { | |
91 | .ipc_offset = 0, | |
92 | .mbox_recv_off = 0x400, | |
93 | }; | |
94 | ||
95 | static const struct sst_lib_dnld_info byt_lib_dnld_info = { | |
96 | .mod_base = SST_BYT_IMR_VIRT_START, | |
97 | .mod_end = SST_BYT_IMR_VIRT_END, | |
98 | .mod_table_offset = BYT_FW_MOD_TABLE_OFFSET, | |
99 | .mod_table_size = BYT_FW_MOD_TABLE_SIZE, | |
100 | .mod_ddr_dnld = false, | |
101 | }; | |
102 | ||
103 | static const struct sst_res_info byt_rvp_res_info = { | |
104 | .shim_offset = 0x140000, | |
105 | .shim_size = 0x000100, | |
106 | .shim_phy_addr = SST_BYT_SHIM_PHY_ADDR, | |
107 | .ssp0_offset = 0xa0000, | |
108 | .ssp0_size = 0x1000, | |
109 | .dma0_offset = 0x98000, | |
110 | .dma0_size = 0x4000, | |
111 | .dma1_offset = 0x9c000, | |
112 | .dma1_size = 0x4000, | |
113 | .iram_offset = 0x0c0000, | |
114 | .iram_size = 0x14000, | |
115 | .dram_offset = 0x100000, | |
116 | .dram_size = 0x28000, | |
117 | .mbox_offset = 0x144000, | |
118 | .mbox_size = 0x1000, | |
119 | .acpi_lpe_res_index = 0, | |
120 | .acpi_ddr_index = 2, | |
121 | .acpi_ipc_irq_index = 5, | |
122 | }; | |
123 | ||
1a28fc19 | 124 | static struct sst_platform_info byt_rvp_platform_data = { |
336cfbb0 VK |
125 | .probe_data = &byt_fwparse_info, |
126 | .ipc_info = &byt_ipc_info, | |
127 | .lib_info = &byt_lib_dnld_info, | |
128 | .res_info = &byt_rvp_res_info, | |
129 | .platform = "sst-mfld-platform", | |
130 | }; | |
131 | ||
bd01fdc3 ML |
132 | /* Cherryview (Cherrytrail and Braswell) uses same mrfld dpcm fw as Baytrail, |
133 | * so pdata is same as Baytrail. | |
134 | */ | |
14cd7923 | 135 | static struct sst_platform_info chv_platform_data = { |
bd01fdc3 ML |
136 | .probe_data = &byt_fwparse_info, |
137 | .ipc_info = &byt_ipc_info, | |
138 | .lib_info = &byt_lib_dnld_info, | |
139 | .res_info = &byt_rvp_res_info, | |
140 | .platform = "sst-mfld-platform", | |
141 | }; | |
142 | ||
336cfbb0 VK |
143 | static int sst_platform_get_resources(struct intel_sst_drv *ctx) |
144 | { | |
145 | struct resource *rsrc; | |
146 | struct platform_device *pdev = to_platform_device(ctx->dev); | |
147 | ||
148 | /* All ACPI resource request here */ | |
149 | /* Get Shim addr */ | |
150 | rsrc = platform_get_resource(pdev, IORESOURCE_MEM, | |
151 | ctx->pdata->res_info->acpi_lpe_res_index); | |
152 | if (!rsrc) { | |
153 | dev_err(ctx->dev, "Invalid SHIM base from IFWI"); | |
154 | return -EIO; | |
155 | } | |
156 | dev_info(ctx->dev, "LPE base: %#x size:%#x", (unsigned int) rsrc->start, | |
157 | (unsigned int)resource_size(rsrc)); | |
158 | ||
159 | ctx->iram_base = rsrc->start + ctx->pdata->res_info->iram_offset; | |
160 | ctx->iram_end = ctx->iram_base + ctx->pdata->res_info->iram_size - 1; | |
161 | dev_info(ctx->dev, "IRAM base: %#x", ctx->iram_base); | |
162 | ctx->iram = devm_ioremap_nocache(ctx->dev, ctx->iram_base, | |
163 | ctx->pdata->res_info->iram_size); | |
164 | if (!ctx->iram) { | |
165 | dev_err(ctx->dev, "unable to map IRAM"); | |
166 | return -EIO; | |
167 | } | |
168 | ||
169 | ctx->dram_base = rsrc->start + ctx->pdata->res_info->dram_offset; | |
170 | ctx->dram_end = ctx->dram_base + ctx->pdata->res_info->dram_size - 1; | |
171 | dev_info(ctx->dev, "DRAM base: %#x", ctx->dram_base); | |
172 | ctx->dram = devm_ioremap_nocache(ctx->dev, ctx->dram_base, | |
173 | ctx->pdata->res_info->dram_size); | |
174 | if (!ctx->dram) { | |
175 | dev_err(ctx->dev, "unable to map DRAM"); | |
176 | return -EIO; | |
177 | } | |
178 | ||
179 | ctx->shim_phy_add = rsrc->start + ctx->pdata->res_info->shim_offset; | |
180 | dev_info(ctx->dev, "SHIM base: %#x", ctx->shim_phy_add); | |
181 | ctx->shim = devm_ioremap_nocache(ctx->dev, ctx->shim_phy_add, | |
182 | ctx->pdata->res_info->shim_size); | |
183 | if (!ctx->shim) { | |
184 | dev_err(ctx->dev, "unable to map SHIM"); | |
185 | return -EIO; | |
186 | } | |
187 | ||
188 | /* reassign physical address to LPE viewpoint address */ | |
189 | ctx->shim_phy_add = ctx->pdata->res_info->shim_phy_addr; | |
190 | ||
191 | /* Get mailbox addr */ | |
192 | ctx->mailbox_add = rsrc->start + ctx->pdata->res_info->mbox_offset; | |
193 | dev_info(ctx->dev, "Mailbox base: %#x", ctx->mailbox_add); | |
194 | ctx->mailbox = devm_ioremap_nocache(ctx->dev, ctx->mailbox_add, | |
195 | ctx->pdata->res_info->mbox_size); | |
196 | if (!ctx->mailbox) { | |
197 | dev_err(ctx->dev, "unable to map mailbox"); | |
198 | return -EIO; | |
199 | } | |
200 | ||
201 | /* reassign physical address to LPE viewpoint address */ | |
202 | ctx->mailbox_add = ctx->info.mailbox_start; | |
203 | ||
204 | rsrc = platform_get_resource(pdev, IORESOURCE_MEM, | |
205 | ctx->pdata->res_info->acpi_ddr_index); | |
206 | if (!rsrc) { | |
207 | dev_err(ctx->dev, "Invalid DDR base from IFWI"); | |
208 | return -EIO; | |
209 | } | |
210 | ctx->ddr_base = rsrc->start; | |
211 | ctx->ddr_end = rsrc->end; | |
212 | dev_info(ctx->dev, "DDR base: %#x", ctx->ddr_base); | |
213 | ctx->ddr = devm_ioremap_nocache(ctx->dev, ctx->ddr_base, | |
214 | resource_size(rsrc)); | |
215 | if (!ctx->ddr) { | |
216 | dev_err(ctx->dev, "unable to map DDR"); | |
217 | return -EIO; | |
218 | } | |
219 | ||
220 | /* Find the IRQ */ | |
221 | ctx->irq_num = platform_get_irq(pdev, | |
222 | ctx->pdata->res_info->acpi_ipc_irq_index); | |
223 | return 0; | |
224 | } | |
225 | ||
226 | static acpi_status sst_acpi_mach_match(acpi_handle handle, u32 level, | |
227 | void *context, void **ret) | |
228 | { | |
229 | *(bool *)context = true; | |
230 | return AE_OK; | |
231 | } | |
232 | ||
233 | static struct sst_machines *sst_acpi_find_machine( | |
234 | struct sst_machines *machines) | |
235 | { | |
236 | struct sst_machines *mach; | |
237 | bool found = false; | |
238 | ||
239 | for (mach = machines; mach->codec_id; mach++) | |
240 | if (ACPI_SUCCESS(acpi_get_devices(mach->codec_id, | |
241 | sst_acpi_mach_match, | |
242 | &found, NULL)) && found) | |
243 | return mach; | |
244 | ||
245 | return NULL; | |
246 | } | |
247 | ||
5129ad6e | 248 | static int sst_acpi_probe(struct platform_device *pdev) |
336cfbb0 VK |
249 | { |
250 | struct device *dev = &pdev->dev; | |
251 | int ret = 0; | |
252 | struct intel_sst_drv *ctx; | |
253 | const struct acpi_device_id *id; | |
254 | struct sst_machines *mach; | |
255 | struct platform_device *mdev; | |
256 | struct platform_device *plat_dev; | |
257 | unsigned int dev_id; | |
258 | ||
259 | id = acpi_match_device(dev->driver->acpi_match_table, dev); | |
260 | if (!id) | |
261 | return -ENODEV; | |
262 | dev_dbg(dev, "for %s", id->id); | |
263 | ||
264 | mach = (struct sst_machines *)id->driver_data; | |
265 | mach = sst_acpi_find_machine(mach); | |
266 | if (mach == NULL) { | |
267 | dev_err(dev, "No matching machine driver found\n"); | |
268 | return -ENODEV; | |
269 | } | |
270 | ||
271 | ret = kstrtouint(id->id, 16, &dev_id); | |
272 | if (ret < 0) { | |
273 | dev_err(dev, "Unique device id conversion error: %d\n", ret); | |
274 | return ret; | |
275 | } | |
276 | ||
277 | dev_dbg(dev, "ACPI device id: %x\n", dev_id); | |
278 | ||
279 | plat_dev = platform_device_register_data(dev, mach->pdata->platform, -1, NULL, 0); | |
f5d40b40 | 280 | if (IS_ERR(plat_dev)) { |
336cfbb0 | 281 | dev_err(dev, "Failed to create machine device: %s\n", mach->pdata->platform); |
f5d40b40 | 282 | return PTR_ERR(plat_dev); |
336cfbb0 VK |
283 | } |
284 | ||
285 | /* Create platform device for sst machine driver */ | |
286 | mdev = platform_device_register_data(dev, mach->machine, -1, NULL, 0); | |
f5d40b40 | 287 | if (IS_ERR(mdev)) { |
336cfbb0 | 288 | dev_err(dev, "Failed to create machine device: %s\n", mach->machine); |
f5d40b40 | 289 | return PTR_ERR(mdev); |
336cfbb0 VK |
290 | } |
291 | ||
292 | ret = sst_alloc_drv_context(&ctx, dev, dev_id); | |
293 | if (ret < 0) | |
294 | return ret; | |
295 | ||
296 | /* Fill sst platform data */ | |
297 | ctx->pdata = mach->pdata; | |
298 | strcpy(ctx->firmware_name, mach->firmware); | |
299 | ||
300 | ret = sst_platform_get_resources(ctx); | |
301 | if (ret) | |
302 | return ret; | |
303 | ||
304 | ret = sst_context_init(ctx); | |
305 | if (ret < 0) | |
306 | return ret; | |
307 | ||
308 | /* need to save shim registers in BYT */ | |
309 | ctx->shim_regs64 = devm_kzalloc(ctx->dev, sizeof(*ctx->shim_regs64), | |
310 | GFP_KERNEL); | |
311 | if (!ctx->shim_regs64) { | |
312 | return -ENOMEM; | |
313 | goto do_sst_cleanup; | |
314 | } | |
315 | ||
316 | sst_configure_runtime_pm(ctx); | |
317 | platform_set_drvdata(pdev, ctx); | |
318 | return ret; | |
319 | ||
320 | do_sst_cleanup: | |
321 | sst_context_cleanup(ctx); | |
322 | platform_set_drvdata(pdev, NULL); | |
323 | dev_err(ctx->dev, "failed with %d\n", ret); | |
324 | return ret; | |
325 | } | |
326 | ||
327 | /** | |
328 | * intel_sst_remove - remove function | |
329 | * | |
330 | * @pdev: platform device structure | |
331 | * | |
332 | * This function is called by OS when a device is unloaded | |
333 | * This frees the interrupt etc | |
334 | */ | |
5129ad6e | 335 | static int sst_acpi_remove(struct platform_device *pdev) |
336cfbb0 VK |
336 | { |
337 | struct intel_sst_drv *ctx; | |
338 | ||
339 | ctx = platform_get_drvdata(pdev); | |
340 | sst_context_cleanup(ctx); | |
341 | platform_set_drvdata(pdev, NULL); | |
342 | return 0; | |
343 | } | |
344 | ||
345 | static struct sst_machines sst_acpi_bytcr[] = { | |
64b9c90b | 346 | {"10EC5640", "T100", "bytt100_rt5640", NULL, "intel/fw_sst_0f28.bin", |
336cfbb0 VK |
347 | &byt_rvp_platform_data }, |
348 | {}, | |
349 | }; | |
350 | ||
bd01fdc3 ML |
351 | /* Cherryview-based platforms: CherryTrail and Braswell */ |
352 | static struct sst_machines sst_acpi_chv[] = { | |
5c2b0636 | 353 | {"10EC5670", "cht-bsw", "cht-bsw-rt5672", NULL, "intel/fw_sst_22a8.bin", |
bd01fdc3 | 354 | &chv_platform_data }, |
e948262a | 355 | {"10EC5645", "cht-bsw", "cht-bsw-rt5645", NULL, "intel/fw_sst_22a8.bin", |
bd01fdc3 ML |
356 | &chv_platform_data }, |
357 | {}, | |
358 | }; | |
359 | ||
336cfbb0 VK |
360 | static const struct acpi_device_id sst_acpi_ids[] = { |
361 | { "80860F28", (unsigned long)&sst_acpi_bytcr}, | |
bd01fdc3 | 362 | { "808622A8", (unsigned long) &sst_acpi_chv}, |
336cfbb0 VK |
363 | { }, |
364 | }; | |
365 | ||
eb826a35 ML |
366 | MODULE_DEVICE_TABLE(acpi, sst_acpi_ids); |
367 | ||
336cfbb0 VK |
368 | static struct platform_driver sst_acpi_driver = { |
369 | .driver = { | |
370 | .name = "intel_sst_acpi", | |
336cfbb0 VK |
371 | .acpi_match_table = ACPI_PTR(sst_acpi_ids), |
372 | .pm = &intel_sst_pm, | |
373 | }, | |
374 | .probe = sst_acpi_probe, | |
375 | .remove = sst_acpi_remove, | |
376 | }; | |
377 | ||
378 | module_platform_driver(sst_acpi_driver); | |
379 | ||
380 | MODULE_DESCRIPTION("Intel (R) SST(R) Audio Engine ACPI Driver"); | |
381 | MODULE_AUTHOR("Ramesh Babu K V"); | |
382 | MODULE_AUTHOR("Omair Mohammed Abdullah"); | |
383 | MODULE_LICENSE("GPL v2"); | |
384 | MODULE_ALIAS("sst"); |