1 // SPDX-License-Identifier: GPL-2.0-only
2 /*
3 * sst_acpi.c - SST (LPE) driver init file for ACPI enumeration.
4 *
5 * Copyright (c) 2013, Intel Corporation.
6 *
7 * Authors: Ramesh Babu K V <Ramesh.Babu@intel.com>
8 * Authors: Omair Mohammed Abdullah <omair.m.abdullah@intel.com>
9 */
10
11 #include <linux/module.h>
12 #include <linux/fs.h>
13 #include <linux/interrupt.h>
14 #include <linux/slab.h>
15 #include <linux/io.h>
16 #include <linux/platform_device.h>
17 #include <linux/firmware.h>
18 #include <linux/pm_qos.h>
19 #include <linux/dmi.h>
20 #include <linux/acpi.h>
21 #include <asm/platform_sst_audio.h>
22 #include <sound/core.h>
23 #include <sound/intel-dsp-config.h>
24 #include <sound/soc.h>
25 #include <sound/compress_driver.h>
26 #include <acpi/acbuffer.h>
27 #include <acpi/platform/acenv.h>
28 #include <acpi/platform/aclinux.h>
29 #include <acpi/actypes.h>
30 #include <acpi/acpi_bus.h>
31 #include <sound/soc-acpi.h>
32 #include <sound/soc-acpi-intel-match.h>
33 #include "../sst-mfld-platform.h"
34 #include "../../common/soc-intel-quirks.h"
35 #include "sst.h"
36
37 /* LPE viewpoint addresses */
38 #define SST_BYT_IRAM_PHY_START 0xff2c0000
39 #define SST_BYT_IRAM_PHY_END 0xff2d4000
40 #define SST_BYT_DRAM_PHY_START 0xff300000
41 #define SST_BYT_DRAM_PHY_END 0xff320000
42 #define SST_BYT_IMR_VIRT_START 0xc0000000 /* virtual addr in LPE */
43 #define SST_BYT_IMR_VIRT_END 0xc01fffff
44 #define SST_BYT_SHIM_PHY_ADDR 0xff340000
45 #define SST_BYT_MBOX_PHY_ADDR 0xff344000
46 #define SST_BYT_DMA0_PHY_ADDR 0xff298000
47 #define SST_BYT_DMA1_PHY_ADDR 0xff29c000
48 #define SST_BYT_SSP0_PHY_ADDR 0xff2a0000
49 #define SST_BYT_SSP2_PHY_ADDR 0xff2a2000
50
51 #define BYT_FW_MOD_TABLE_OFFSET 0x80000
52 #define BYT_FW_MOD_TABLE_SIZE 0x100
53 #define BYT_FW_MOD_OFFSET (BYT_FW_MOD_TABLE_OFFSET + BYT_FW_MOD_TABLE_SIZE)
54
55 static const struct sst_info byt_fwparse_info = {
56 .use_elf = false,
57 .max_streams = 25,
58 .iram_start = SST_BYT_IRAM_PHY_START,
59 .iram_end = SST_BYT_IRAM_PHY_END,
60 .iram_use = true,
61 .dram_start = SST_BYT_DRAM_PHY_START,
62 .dram_end = SST_BYT_DRAM_PHY_END,
63 .dram_use = true,
64 .imr_start = SST_BYT_IMR_VIRT_START,
65 .imr_end = SST_BYT_IMR_VIRT_END,
66 .imr_use = true,
67 .mailbox_start = SST_BYT_MBOX_PHY_ADDR,
68 .num_probes = 0,
69 .lpe_viewpt_rqd = true,
70 };
71
72 static const struct sst_ipc_info byt_ipc_info = {
73 .ipc_offset = 0,
74 .mbox_recv_off = 0x400,
75 };
76
77 static const struct sst_lib_dnld_info byt_lib_dnld_info = {
78 .mod_base = SST_BYT_IMR_VIRT_START,
79 .mod_end = SST_BYT_IMR_VIRT_END,
80 .mod_table_offset = BYT_FW_MOD_TABLE_OFFSET,
81 .mod_table_size = BYT_FW_MOD_TABLE_SIZE,
82 .mod_ddr_dnld = false,
83 };
84
85 static const struct sst_res_info byt_rvp_res_info = {
86 .shim_offset = 0x140000,
87 .shim_size = 0x000100,
88 .shim_phy_addr = SST_BYT_SHIM_PHY_ADDR,
89 .ssp0_offset = 0xa0000,
90 .ssp0_size = 0x1000,
91 .dma0_offset = 0x98000,
92 .dma0_size = 0x4000,
93 .dma1_offset = 0x9c000,
94 .dma1_size = 0x4000,
95 .iram_offset = 0x0c0000,
96 .iram_size = 0x14000,
97 .dram_offset = 0x100000,
98 .dram_size = 0x28000,
99 .mbox_offset = 0x144000,
100 .mbox_size = 0x1000,
101 .acpi_lpe_res_index = 0,
102 .acpi_ddr_index = 2,
103 .acpi_ipc_irq_index = 5,
104 };
105
106 /* BYTCR has different BIOS from BYT */
107 static const struct sst_res_info bytcr_res_info = {
108 .shim_offset = 0x140000,
109 .shim_size = 0x000100,
110 .shim_phy_addr = SST_BYT_SHIM_PHY_ADDR,
111 .ssp0_offset = 0xa0000,
112 .ssp0_size = 0x1000,
113 .dma0_offset = 0x98000,
114 .dma0_size = 0x4000,
115 .dma1_offset = 0x9c000,
116 .dma1_size = 0x4000,
117 .iram_offset = 0x0c0000,
118 .iram_size = 0x14000,
119 .dram_offset = 0x100000,
120 .dram_size = 0x28000,
121 .mbox_offset = 0x144000,
122 .mbox_size = 0x1000,
123 .acpi_lpe_res_index = 0,
124 .acpi_ddr_index = 2,
125 .acpi_ipc_irq_index = 0
126 };
127
128 static struct sst_platform_info byt_rvp_platform_data = {
129 .probe_data = &byt_fwparse_info,
130 .ipc_info = &byt_ipc_info,
131 .lib_info = &byt_lib_dnld_info,
132 .res_info = &byt_rvp_res_info,
133 .platform = "sst-mfld-platform",
134 .streams_lost_on_suspend = true,
135 };
136
137 /* Cherryview (Cherrytrail and Braswell) uses same mrfld dpcm fw as Baytrail,
138 * so pdata is same as Baytrail, minus the streams_lost_on_suspend quirk.
139 */
140 static struct sst_platform_info chv_platform_data = {
141 .probe_data = &byt_fwparse_info,
142 .ipc_info = &byt_ipc_info,
143 .lib_info = &byt_lib_dnld_info,
144 .res_info = &byt_rvp_res_info,
145 .platform = "sst-mfld-platform",
146 };
147
sst_platform_get_resources(struct intel_sst_drv * ctx)148 static int sst_platform_get_resources(struct intel_sst_drv *ctx)
149 {
150 struct resource *rsrc;
151 struct platform_device *pdev = to_platform_device(ctx->dev);
152
153 /* All ACPI resource request here */
154 /* Get Shim addr */
155 rsrc = platform_get_resource(pdev, IORESOURCE_MEM,
156 ctx->pdata->res_info->acpi_lpe_res_index);
157 if (!rsrc) {
158 dev_err(ctx->dev, "Invalid SHIM base from IFWI\n");
159 return -EIO;
160 }
161 dev_info(ctx->dev, "LPE base: %#x size:%#x", (unsigned int) rsrc->start,
162 (unsigned int)resource_size(rsrc));
163
164 ctx->iram_base = rsrc->start + ctx->pdata->res_info->iram_offset;
165 ctx->iram_end = ctx->iram_base + ctx->pdata->res_info->iram_size - 1;
166 dev_info(ctx->dev, "IRAM base: %#x", ctx->iram_base);
167 ctx->iram = devm_ioremap(ctx->dev, ctx->iram_base,
168 ctx->pdata->res_info->iram_size);
169 if (!ctx->iram) {
170 dev_err(ctx->dev, "unable to map IRAM\n");
171 return -EIO;
172 }
173
174 ctx->dram_base = rsrc->start + ctx->pdata->res_info->dram_offset;
175 ctx->dram_end = ctx->dram_base + ctx->pdata->res_info->dram_size - 1;
176 dev_info(ctx->dev, "DRAM base: %#x", ctx->dram_base);
177 ctx->dram = devm_ioremap(ctx->dev, ctx->dram_base,
178 ctx->pdata->res_info->dram_size);
179 if (!ctx->dram) {
180 dev_err(ctx->dev, "unable to map DRAM\n");
181 return -EIO;
182 }
183
184 ctx->shim_phy_add = rsrc->start + ctx->pdata->res_info->shim_offset;
185 dev_info(ctx->dev, "SHIM base: %#x", ctx->shim_phy_add);
186 ctx->shim = devm_ioremap(ctx->dev, ctx->shim_phy_add,
187 ctx->pdata->res_info->shim_size);
188 if (!ctx->shim) {
189 dev_err(ctx->dev, "unable to map SHIM\n");
190 return -EIO;
191 }
192
193 /* reassign physical address to LPE viewpoint address */
194 ctx->shim_phy_add = ctx->pdata->res_info->shim_phy_addr;
195
196 /* Get mailbox addr */
197 ctx->mailbox_add = rsrc->start + ctx->pdata->res_info->mbox_offset;
198 dev_info(ctx->dev, "Mailbox base: %#x", ctx->mailbox_add);
199 ctx->mailbox = devm_ioremap(ctx->dev, ctx->mailbox_add,
200 ctx->pdata->res_info->mbox_size);
201 if (!ctx->mailbox) {
202 dev_err(ctx->dev, "unable to map mailbox\n");
203 return -EIO;
204 }
205
206 /* reassign physical address to LPE viewpoint address */
207 ctx->mailbox_add = ctx->info.mailbox_start;
208
209 rsrc = platform_get_resource(pdev, IORESOURCE_MEM,
210 ctx->pdata->res_info->acpi_ddr_index);
211 if (!rsrc) {
212 dev_err(ctx->dev, "Invalid DDR base from IFWI\n");
213 return -EIO;
214 }
215 ctx->ddr_base = rsrc->start;
216 ctx->ddr_end = rsrc->end;
217 dev_info(ctx->dev, "DDR base: %#x", ctx->ddr_base);
218 ctx->ddr = devm_ioremap(ctx->dev, ctx->ddr_base,
219 resource_size(rsrc));
220 if (!ctx->ddr) {
221 dev_err(ctx->dev, "unable to map DDR\n");
222 return -EIO;
223 }
224
225 /* Find the IRQ */
226 ctx->irq_num = platform_get_irq(pdev,
227 ctx->pdata->res_info->acpi_ipc_irq_index);
228 if (ctx->irq_num <= 0)
229 return ctx->irq_num < 0 ? ctx->irq_num : -EIO;
230
231 return 0;
232 }
233
sst_acpi_probe(struct platform_device * pdev)234 static int sst_acpi_probe(struct platform_device *pdev)
235 {
236 struct device *dev = &pdev->dev;
237 int ret = 0;
238 struct intel_sst_drv *ctx;
239 const struct acpi_device_id *id;
240 struct snd_soc_acpi_mach *mach;
241 struct platform_device *mdev;
242 struct platform_device *plat_dev;
243 struct sst_platform_info *pdata;
244 unsigned int dev_id;
245
246 id = acpi_match_device(dev->driver->acpi_match_table, dev);
247 if (!id)
248 return -ENODEV;
249
250 ret = snd_intel_acpi_dsp_driver_probe(dev, id->id);
251 if (ret != SND_INTEL_DSP_DRIVER_ANY && ret != SND_INTEL_DSP_DRIVER_SST) {
252 dev_dbg(dev, "SST ACPI driver not selected, aborting probe\n");
253 return -ENODEV;
254 }
255
256 dev_dbg(dev, "for %s\n", id->id);
257
258 mach = (struct snd_soc_acpi_mach *)id->driver_data;
259 mach = snd_soc_acpi_find_machine(mach);
260 if (mach == NULL) {
261 dev_err(dev, "No matching machine driver found\n");
262 return -ENODEV;
263 }
264
265 if (soc_intel_is_byt())
266 mach->pdata = &byt_rvp_platform_data;
267 else
268 mach->pdata = &chv_platform_data;
269 pdata = mach->pdata;
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 ret = sst_alloc_drv_context(&ctx, dev, dev_id);
280 if (ret < 0)
281 return ret;
282
283 if (soc_intel_is_byt_cr(pdev)) {
284 /* override resource info */
285 byt_rvp_platform_data.res_info = &bytcr_res_info;
286 }
287
288 /* update machine parameters */
289 mach->mach_params.acpi_ipc_irq_index =
290 pdata->res_info->acpi_ipc_irq_index;
291
292 plat_dev = platform_device_register_data(dev, pdata->platform, -1,
293 NULL, 0);
294 if (IS_ERR(plat_dev)) {
295 dev_err(dev, "Failed to create machine device: %s\n",
296 pdata->platform);
297 return PTR_ERR(plat_dev);
298 }
299
300 /*
301 * Create platform device for sst machine driver,
302 * pass machine info as pdata
303 */
304 mdev = platform_device_register_data(dev, mach->drv_name, -1,
305 (const void *)mach, sizeof(*mach));
306 if (IS_ERR(mdev)) {
307 dev_err(dev, "Failed to create machine device: %s\n",
308 mach->drv_name);
309 return PTR_ERR(mdev);
310 }
311
312 /* Fill sst platform data */
313 ctx->pdata = pdata;
314 strcpy(ctx->firmware_name, mach->fw_filename);
315
316 ret = sst_platform_get_resources(ctx);
317 if (ret)
318 return ret;
319
320 ret = sst_context_init(ctx);
321 if (ret < 0)
322 return ret;
323
324 sst_configure_runtime_pm(ctx);
325 platform_set_drvdata(pdev, ctx);
326 return ret;
327 }
328
329 /**
330 * sst_acpi_remove - remove function
331 *
332 * @pdev: platform device structure
333 *
334 * This function is called by OS when a device is unloaded
335 * This frees the interrupt etc
336 */
sst_acpi_remove(struct platform_device * pdev)337 static void sst_acpi_remove(struct platform_device *pdev)
338 {
339 struct intel_sst_drv *ctx;
340
341 ctx = platform_get_drvdata(pdev);
342 sst_context_cleanup(ctx);
343 platform_set_drvdata(pdev, NULL);
344 }
345
346 static const struct acpi_device_id sst_acpi_ids[] = {
347 { "80860F28", (unsigned long)&snd_soc_acpi_intel_baytrail_machines},
348 { "808622A8", (unsigned long)&snd_soc_acpi_intel_cherrytrail_machines},
349 { },
350 };
351
352 MODULE_DEVICE_TABLE(acpi, sst_acpi_ids);
353
354 static struct platform_driver sst_acpi_driver = {
355 .driver = {
356 .name = "intel_sst_acpi",
357 .acpi_match_table = ACPI_PTR(sst_acpi_ids),
358 .pm = &intel_sst_pm,
359 },
360 .probe = sst_acpi_probe,
361 .remove_new = sst_acpi_remove,
362 };
363
364 module_platform_driver(sst_acpi_driver);
365
366 MODULE_DESCRIPTION("Intel (R) SST(R) Audio Engine ACPI Driver");
367 MODULE_AUTHOR("Ramesh Babu K V");
368 MODULE_AUTHOR("Omair Mohammed Abdullah");
369 MODULE_LICENSE("GPL v2");
370 MODULE_ALIAS("sst");
371