[deliverable/linux.git] / sound / soc / intel / sst-acpi.c

/*
 * Intel SST loader on ACPI systems
 *
 * Copyright (C) 2013, Intel Corporation. All rights reserved.
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License version
 * 2 as published by the Free Software Foundation.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 */

#include <linux/acpi.h>
#include <linux/device.h>
#include <linux/firmware.h>
#include <linux/module.h>
#include <linux/platform_device.h>

#include "sst-dsp.h"

#define SST_LPT_DSP_DMA_ADDR_OFFSET	0x0F0000
#define SST_WPT_DSP_DMA_ADDR_OFFSET	0x0FE000
#define SST_LPT_DSP_DMA_SIZE		(1024 - 1)

/* Descriptor for SST ASoC machine driver */
struct sst_acpi_mach {
	/* ACPI ID for the matching machine driver. Audio codec for instance */
	const u8 id[ACPI_ID_LEN];
	/* machine driver name */
	const char *drv_name;
	/* firmware file name */
	const char *fw_filename;
};

/* Descriptor for setting up SST platform data */
struct sst_acpi_desc {
	const char *drv_name;
	struct sst_acpi_mach *machines;
	/* Platform resource indexes. Must set to -1 if not used */
	int resindex_lpe_base;
	int resindex_pcicfg_base;
	int resindex_fw_base;
	int irqindex_host_ipc;
	int resindex_dma_base;
	/* Unique number identifying the SST core on platform */
	int sst_id;
	/* DMA only valid when resindex_dma_base != -1*/
	int dma_engine;
	int dma_size;
};

struct sst_acpi_priv {
	struct platform_device *pdev_mach;
	struct platform_device *pdev_pcm;
	struct sst_pdata sst_pdata;
	struct sst_acpi_desc *desc;
	struct sst_acpi_mach *mach;
};

static void sst_acpi_fw_cb(const struct firmware *fw, void *context)
{
	struct platform_device *pdev = context;
	struct device *dev = &pdev->dev;
	struct sst_acpi_priv *sst_acpi = platform_get_drvdata(pdev);
	struct sst_pdata *sst_pdata = &sst_acpi->sst_pdata;
	struct sst_acpi_desc *desc = sst_acpi->desc;
	struct sst_acpi_mach *mach = sst_acpi->mach;

	sst_pdata->fw = fw;
	if (!fw) {
		dev_err(dev, "Cannot load firmware %s\n", mach->fw_filename);
		return;
	}

	/* register PCM and DAI driver */
	sst_acpi->pdev_pcm =
		platform_device_register_data(dev, desc->drv_name, -1,
					      sst_pdata, sizeof(*sst_pdata));
	if (IS_ERR(sst_acpi->pdev_pcm)) {
		dev_err(dev, "Cannot register device %s. Error %d\n",
			desc->drv_name, (int)PTR_ERR(sst_acpi->pdev_pcm));
	}

	return;
}

static acpi_status sst_acpi_mach_match(acpi_handle handle, u32 level,
				       void *context, void **ret)
{
	*(bool *)context = true;
	return AE_OK;
}

static struct sst_acpi_mach *sst_acpi_find_machine(
	struct sst_acpi_mach *machines)
{
	struct sst_acpi_mach *mach;
	bool found = false;

	for (mach = machines; mach->id[0]; mach++)
		if (ACPI_SUCCESS(acpi_get_devices(mach->id,
						  sst_acpi_mach_match,
						  &found, NULL)) && found)
			return mach;

	return NULL;
}

static int sst_acpi_probe(struct platform_device *pdev)
{
	const struct acpi_device_id *id;
	struct device *dev = &pdev->dev;
	struct sst_acpi_priv *sst_acpi;
	struct sst_pdata *sst_pdata;
	struct sst_acpi_mach *mach;
	struct sst_acpi_desc *desc;
	struct resource *mmio;
	int ret = 0;

	sst_acpi = devm_kzalloc(dev, sizeof(*sst_acpi), GFP_KERNEL);
	if (sst_acpi == NULL)
		return -ENOMEM;

	id = acpi_match_device(dev->driver->acpi_match_table, dev);
	if (!id)
		return -ENODEV;

	desc = (struct sst_acpi_desc *)id->driver_data;
	mach = sst_acpi_find_machine(desc->machines);
	if (mach == NULL) {
		dev_err(dev, "No matching ASoC machine driver found\n");
		return -ENODEV;
	}

	sst_pdata = &sst_acpi->sst_pdata;
	sst_pdata->id = desc->sst_id;
	sst_acpi->desc = desc;
	sst_acpi->mach = mach;

	if (desc->resindex_dma_base >= 0) {
		sst_pdata->dma_engine = desc->dma_engine;
		sst_pdata->dma_base = desc->resindex_dma_base;
		sst_pdata->dma_size = desc->dma_size;
	}

	if (desc->irqindex_host_ipc >= 0)
		sst_pdata->irq = platform_get_irq(pdev, desc->irqindex_host_ipc);

	if (desc->resindex_lpe_base >= 0) {
		mmio = platform_get_resource(pdev, IORESOURCE_MEM,
					     desc->resindex_lpe_base);
		if (mmio) {
			sst_pdata->lpe_base = mmio->start;
			sst_pdata->lpe_size = resource_size(mmio);
		}
	}

	if (desc->resindex_pcicfg_base >= 0) {
		mmio = platform_get_resource(pdev, IORESOURCE_MEM,
					     desc->resindex_pcicfg_base);
		if (mmio) {
			sst_pdata->pcicfg_base = mmio->start;
			sst_pdata->pcicfg_size = resource_size(mmio);
		}
	}

	if (desc->resindex_fw_base >= 0) {
		mmio = platform_get_resource(pdev, IORESOURCE_MEM,
					     desc->resindex_fw_base);
		if (mmio) {
			sst_pdata->fw_base = mmio->start;
			sst_pdata->fw_size = resource_size(mmio);
		}
	}

	platform_set_drvdata(pdev, sst_acpi);

	/* register machine driver */
	sst_acpi->pdev_mach =
		platform_device_register_data(dev, mach->drv_name, -1,
					      sst_pdata, sizeof(*sst_pdata));
	if (IS_ERR(sst_acpi->pdev_mach))
		return PTR_ERR(sst_acpi->pdev_mach);

	/* continue SST probing after firmware is loaded */
	ret = request_firmware_nowait(THIS_MODULE, true, mach->fw_filename,
				      dev, GFP_KERNEL, pdev, sst_acpi_fw_cb);
	if (ret)
		platform_device_unregister(sst_acpi->pdev_mach);

	return ret;
}

static int sst_acpi_remove(struct platform_device *pdev)
{
	struct sst_acpi_priv *sst_acpi = platform_get_drvdata(pdev);
	struct sst_pdata *sst_pdata = &sst_acpi->sst_pdata;

	platform_device_unregister(sst_acpi->pdev_mach);
	if (!IS_ERR_OR_NULL(sst_acpi->pdev_pcm))
		platform_device_unregister(sst_acpi->pdev_pcm);
	release_firmware(sst_pdata->fw);

	return 0;
}

static struct sst_acpi_mach haswell_machines[] = {
	{ "INT33CA", "haswell-audio", "intel/IntcSST1.bin" },
	{}
};

static struct sst_acpi_desc sst_acpi_haswell_desc = {
	.drv_name = "haswell-pcm-audio",
	.machines = haswell_machines,
	.resindex_lpe_base = 0,
	.resindex_pcicfg_base = 1,
	.resindex_fw_base = -1,
	.irqindex_host_ipc = 0,
	.sst_id = SST_DEV_ID_LYNX_POINT,
	.dma_engine = SST_DMA_TYPE_DW,
	.resindex_dma_base = SST_LPT_DSP_DMA_ADDR_OFFSET,
	.dma_size = SST_LPT_DSP_DMA_SIZE,
};

static struct sst_acpi_mach broadwell_machines[] = {
	{ "INT343A", "broadwell-audio", "intel/IntcSST2.bin" },
	{}
};

static struct sst_acpi_desc sst_acpi_broadwell_desc = {
	.drv_name = "haswell-pcm-audio",
	.machines = broadwell_machines,
	.resindex_lpe_base = 0,
	.resindex_pcicfg_base = 1,
	.resindex_fw_base = -1,
	.irqindex_host_ipc = 0,
	.sst_id = SST_DEV_ID_WILDCAT_POINT,
	.dma_engine = SST_DMA_TYPE_DW,
	.resindex_dma_base = SST_WPT_DSP_DMA_ADDR_OFFSET,
	.dma_size = SST_LPT_DSP_DMA_SIZE,
};

static struct sst_acpi_mach baytrail_machines[] = {
	{ "10EC5640", "byt-rt5640", "intel/fw_sst_0f28.bin-i2s_master" },
	{}
};

static struct sst_acpi_desc sst_acpi_baytrail_desc = {
	.drv_name = "baytrail-pcm-audio",
	.machines = baytrail_machines,
	.resindex_lpe_base = 0,
	.resindex_pcicfg_base = 1,
	.resindex_fw_base = 2,
	.irqindex_host_ipc = 5,
	.sst_id = SST_DEV_ID_BYT,
	.resindex_dma_base = -1,
};

static struct acpi_device_id sst_acpi_match[] = {
	{ "INT33C8", (unsigned long)&sst_acpi_haswell_desc },
	{ "INT3438", (unsigned long)&sst_acpi_broadwell_desc },
	{ "80860F28", (unsigned long)&sst_acpi_baytrail_desc },
	{ }
};
MODULE_DEVICE_TABLE(acpi, sst_acpi_match);

static struct platform_driver sst_acpi_driver = {
	.probe = sst_acpi_probe,
	.remove = sst_acpi_remove,
	.driver = {
		.name = "sst-acpi",
		.owner = THIS_MODULE,
		.acpi_match_table = ACPI_PTR(sst_acpi_match),
	},
};
module_platform_driver(sst_acpi_driver);

MODULE_AUTHOR("Jarkko Nikula <jarkko.nikula@linux.intel.com>");
MODULE_DESCRIPTION("Intel SST loader on ACPI systems");
MODULE_LICENSE("GPL v2");
Commit	Line	Data
a4b12990 MB	1	/*
	2	* Intel SST loader on ACPI systems
	3	*
	4	* Copyright (C) 2013, Intel Corporation. All rights reserved.
	5	*
	6	* This program is free software; you can redistribute it and/or
	7	* modify it under the terms of the GNU General Public License version
	8	* 2 as published by the Free Software Foundation.
	9	*
	10	* This program is distributed in the hope that it will be useful,
	11	* but WITHOUT ANY WARRANTY; without even the implied warranty of
	12	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	13	* GNU General Public License for more details.
	14	*
	15	*/
	16
	17	#include <linux/acpi.h>
	18	#include <linux/device.h>
	19	#include <linux/firmware.h>
	20	#include <linux/module.h>
	21	#include <linux/platform_device.h>
	22
	23	#include "sst-dsp.h"
	24
	25	#define SST_LPT_DSP_DMA_ADDR_OFFSET 0x0F0000
	26	#define SST_WPT_DSP_DMA_ADDR_OFFSET 0x0FE000
	27	#define SST_LPT_DSP_DMA_SIZE (1024 - 1)
	28
	29	/* Descriptor for SST ASoC machine driver */
	30	struct sst_acpi_mach {
	31	/* ACPI ID for the matching machine driver. Audio codec for instance */
	32	const u8 id[ACPI_ID_LEN];
	33	/* machine driver name */
	34	const char *drv_name;
	35	/* firmware file name */
	36	const char *fw_filename;
	37	};
	38
	39	/* Descriptor for setting up SST platform data */
	40	struct sst_acpi_desc {
	41	const char *drv_name;
	42	struct sst_acpi_mach *machines;
	43	/* Platform resource indexes. Must set to -1 if not used */
	44	int resindex_lpe_base;
	45	int resindex_pcicfg_base;
	46	int resindex_fw_base;
	47	int irqindex_host_ipc;
	48	int resindex_dma_base;
	49	/* Unique number identifying the SST core on platform */
	50	int sst_id;
	51	/* DMA only valid when resindex_dma_base != -1*/
	52	int dma_engine;
	53	int dma_size;
	54	};
	55
	56	struct sst_acpi_priv {
	57	struct platform_device *pdev_mach;
	58	struct platform_device *pdev_pcm;
	59	struct sst_pdata sst_pdata;
	60	struct sst_acpi_desc *desc;
	61	struct sst_acpi_mach *mach;
	62	};
	63
	64	static void sst_acpi_fw_cb(const struct firmware fw, void context)
65	{
66	struct platform_device *pdev = context;
67	struct device *dev = &pdev->dev;
68	struct sst_acpi_priv *sst_acpi = platform_get_drvdata(pdev);
69	struct sst_pdata *sst_pdata = &sst_acpi->sst_pdata;
70	struct sst_acpi_desc *desc = sst_acpi->desc;
71	struct sst_acpi_mach *mach = sst_acpi->mach;
72
73	sst_pdata->fw = fw;
74	if (!fw) {
75	dev_err(dev, "Cannot load firmware %s\n", mach->fw_filename);
76	return;
77	}
78
79	/* register PCM and DAI driver */
80	sst_acpi->pdev_pcm =
81	platform_device_register_data(dev, desc->drv_name, -1,
82	sst_pdata, sizeof(*sst_pdata));
83	if (IS_ERR(sst_acpi->pdev_pcm)) {
84	dev_err(dev, "Cannot register device %s. Error %d\n",
85	desc->drv_name, (int)PTR_ERR(sst_acpi->pdev_pcm));
86	}
87
88	return;
89	}
90
91	static acpi_status sst_acpi_mach_match(acpi_handle handle, u32 level,
92	void context, void *ret)
93	{
94	(bool )context = true;
95	return AE_OK;
96	}
97
98	static struct sst_acpi_mach *sst_acpi_find_machine(
99	struct sst_acpi_mach *machines)
100	{
101	struct sst_acpi_mach *mach;
102	bool found = false;
103
104	for (mach = machines; mach->id[0]; mach++)
105	if (ACPI_SUCCESS(acpi_get_devices(mach->id,
106	sst_acpi_mach_match,
107	&found, NULL)) && found)
108	return mach;
109
110	return NULL;
111	}
112
113	static int sst_acpi_probe(struct platform_device *pdev)
114	{
115	const struct acpi_device_id *id;
116	struct device *dev = &pdev->dev;
117	struct sst_acpi_priv *sst_acpi;
118	struct sst_pdata *sst_pdata;
119	struct sst_acpi_mach *mach;
120	struct sst_acpi_desc *desc;
121	struct resource *mmio;
122	int ret = 0;
123
124	sst_acpi = devm_kzalloc(dev, sizeof(*sst_acpi), GFP_KERNEL);
125	if (sst_acpi == NULL)
126	return -ENOMEM;
127
128	id = acpi_match_device(dev->driver->acpi_match_table, dev);
129	if (!id)
130	return -ENODEV;
131
132	desc = (struct sst_acpi_desc *)id->driver_data;
133	mach = sst_acpi_find_machine(desc->machines);
134	if (mach == NULL) {
135	dev_err(dev, "No matching ASoC machine driver found\n");
136	return -ENODEV;
137	}
138
139	sst_pdata = &sst_acpi->sst_pdata;
140	sst_pdata->id = desc->sst_id;
141	sst_acpi->desc = desc;
142	sst_acpi->mach = mach;
143
144	if (desc->resindex_dma_base >= 0) {
145	sst_pdata->dma_engine = desc->dma_engine;
146	sst_pdata->dma_base = desc->resindex_dma_base;
147	sst_pdata->dma_size = desc->dma_size;
148	}
149
150	if (desc->irqindex_host_ipc >= 0)
151	sst_pdata->irq = platform_get_irq(pdev, desc->irqindex_host_ipc);
152
153	if (desc->resindex_lpe_base >= 0) {
154	mmio = platform_get_resource(pdev, IORESOURCE_MEM,
155	desc->resindex_lpe_base);
156	if (mmio) {
157	sst_pdata->lpe_base = mmio->start;
158	sst_pdata->lpe_size = resource_size(mmio);
159	}
160	}
161
162	if (desc->resindex_pcicfg_base >= 0) {
163	mmio = platform_get_resource(pdev, IORESOURCE_MEM,
164	desc->resindex_pcicfg_base);
165	if (mmio) {
166	sst_pdata->pcicfg_base = mmio->start;
167	sst_pdata->pcicfg_size = resource_size(mmio);
168	}
169	}
170
171	if (desc->resindex_fw_base >= 0) {
172	mmio = platform_get_resource(pdev, IORESOURCE_MEM,
173	desc->resindex_fw_base);
174	if (mmio) {
175	sst_pdata->fw_base = mmio->start;
176	sst_pdata->fw_size = resource_size(mmio);
177	}
178	}
179
180	platform_set_drvdata(pdev, sst_acpi);
181
182	/* register machine driver */
183	sst_acpi->pdev_mach =
184	platform_device_register_data(dev, mach->drv_name, -1,
185	sst_pdata, sizeof(*sst_pdata));
186	if (IS_ERR(sst_acpi->pdev_mach))
187	return PTR_ERR(sst_acpi->pdev_mach);
188
189	/* continue SST probing after firmware is loaded */
190	ret = request_firmware_nowait(THIS_MODULE, true, mach->fw_filename,
191	dev, GFP_KERNEL, pdev, sst_acpi_fw_cb);
192	if (ret)
193	platform_device_unregister(sst_acpi->pdev_mach);
194
195	return ret;
196	}
197
198	static int sst_acpi_remove(struct platform_device *pdev)
199	{
200	struct sst_acpi_priv *sst_acpi = platform_get_drvdata(pdev);
201	struct sst_pdata *sst_pdata = &sst_acpi->sst_pdata;
202
203	platform_device_unregister(sst_acpi->pdev_mach);
204	if (!IS_ERR_OR_NULL(sst_acpi->pdev_pcm))
205	platform_device_unregister(sst_acpi->pdev_pcm);
206	release_firmware(sst_pdata->fw);
207
208	return 0;
209	}
210
211	static struct sst_acpi_mach haswell_machines[] = {
212	{ "INT33CA", "haswell-audio", "intel/IntcSST1.bin" },
213	{}
214	};
215
216	static struct sst_acpi_desc sst_acpi_haswell_desc = {
217	.drv_name = "haswell-pcm-audio",
218	.machines = haswell_machines,
219	.resindex_lpe_base = 0,
220	.resindex_pcicfg_base = 1,
221	.resindex_fw_base = -1,
222	.irqindex_host_ipc = 0,
223	.sst_id = SST_DEV_ID_LYNX_POINT,
224	.dma_engine = SST_DMA_TYPE_DW,
225	.resindex_dma_base = SST_LPT_DSP_DMA_ADDR_OFFSET,
226	.dma_size = SST_LPT_DSP_DMA_SIZE,
227	};
228
229	static struct sst_acpi_mach broadwell_machines[] = {
230	{ "INT343A", "broadwell-audio", "intel/IntcSST2.bin" },
231	{}
232	};
233
234	static struct sst_acpi_desc sst_acpi_broadwell_desc = {
235	.drv_name = "haswell-pcm-audio",
236	.machines = broadwell_machines,
237	.resindex_lpe_base = 0,
238	.resindex_pcicfg_base = 1,
239	.resindex_fw_base = -1,
240	.irqindex_host_ipc = 0,
241	.sst_id = SST_DEV_ID_WILDCAT_POINT,
242	.dma_engine = SST_DMA_TYPE_DW,
243	.resindex_dma_base = SST_WPT_DSP_DMA_ADDR_OFFSET,
244	.dma_size = SST_LPT_DSP_DMA_SIZE,
245	};
246
247	static struct sst_acpi_mach baytrail_machines[] = {
248	{ "10EC5640", "byt-rt5640", "intel/fw_sst_0f28.bin-i2s_master" },
249	{}
250	};
251
252	static struct sst_acpi_desc sst_acpi_baytrail_desc = {
253	.drv_name = "baytrail-pcm-audio",
254	.machines = baytrail_machines,
255	.resindex_lpe_base = 0,
256	.resindex_pcicfg_base = 1,
257	.resindex_fw_base = 2,
258	.irqindex_host_ipc = 5,
259	.sst_id = SST_DEV_ID_BYT,
260	.resindex_dma_base = -1,
261	};
262
263	static struct acpi_device_id sst_acpi_match[] = {
264	{ "INT33C8", (unsigned long)&sst_acpi_haswell_desc },
265	{ "INT3438", (unsigned long)&sst_acpi_broadwell_desc },
266	{ "80860F28", (unsigned long)&sst_acpi_baytrail_desc },
267	{ }
268	};
269	MODULE_DEVICE_TABLE(acpi, sst_acpi_match);
270
271	static struct platform_driver sst_acpi_driver = {
272	.probe = sst_acpi_probe,
273	.remove = sst_acpi_remove,
274	.driver = {
275	.name = "sst-acpi",
276	.owner = THIS_MODULE,
277	.acpi_match_table = ACPI_PTR(sst_acpi_match),
278	},
279	};
280	module_platform_driver(sst_acpi_driver);
281
282	MODULE_AUTHOR("Jarkko Nikula <jarkko.nikula@linux.intel.com>");
283	MODULE_DESCRIPTION("Intel SST loader on ACPI systems");
284	MODULE_LICENSE("GPL v2");