1// SPDX-License-Identifier: (GPL-2.0-only OR BSD-3-Clause)
2//
3// This file is provided under a dual BSD/GPLv2 license. When using or
4// redistributing this file, you may do so under either license.
5//
6// Copyright(c) 2018-2021 Intel Corporation
7//
8// Author: Liam Girdwood <liam.r.girdwood@linux.intel.com>
9//
10
11#include <linux/module.h>
12#include <linux/pci.h>
13#include <sound/soc-acpi.h>
14#include <sound/soc-acpi-intel-match.h>
15#include <sound/sof.h>
16#include "../ops.h"
17#include "atom.h"
18#include "../sof-pci-dev.h"
19#include "../sof-audio.h"
20
21/* platform specific devices */
22#include "shim.h"
23
24static struct snd_soc_acpi_mach sof_tng_machines[] = {
25 {
26 .id = "INT343A",
27 .drv_name = "edison",
28 .sof_tplg_filename = "sof-byt.tplg",
29 },
30 {}
31};
32
33static const struct snd_sof_debugfs_map tng_debugfs[] = {
34 {"dmac0", DSP_BAR, DMAC0_OFFSET, DMAC_SIZE,
35 SOF_DEBUGFS_ACCESS_ALWAYS},
36 {"dmac1", DSP_BAR, DMAC1_OFFSET, DMAC_SIZE,
37 SOF_DEBUGFS_ACCESS_ALWAYS},
38 {"ssp0", DSP_BAR, SSP0_OFFSET, SSP_SIZE,
39 SOF_DEBUGFS_ACCESS_ALWAYS},
40 {"ssp1", DSP_BAR, SSP1_OFFSET, SSP_SIZE,
41 SOF_DEBUGFS_ACCESS_ALWAYS},
42 {"ssp2", DSP_BAR, SSP2_OFFSET, SSP_SIZE,
43 SOF_DEBUGFS_ACCESS_ALWAYS},
44 {"iram", DSP_BAR, IRAM_OFFSET, IRAM_SIZE,
45 SOF_DEBUGFS_ACCESS_D0_ONLY},
46 {"dram", DSP_BAR, DRAM_OFFSET, DRAM_SIZE,
47 SOF_DEBUGFS_ACCESS_D0_ONLY},
48 {"shim", DSP_BAR, SHIM_OFFSET, SHIM_SIZE_BYT,
49 SOF_DEBUGFS_ACCESS_ALWAYS},
50};
51
52static int tangier_pci_probe(struct snd_sof_dev *sdev)
53{
54 struct snd_sof_pdata *pdata = sdev->pdata;
55 const struct sof_dev_desc *desc = pdata->desc;
56 struct pci_dev *pci = to_pci_dev(sdev->dev);
57 const struct sof_intel_dsp_desc *chip;
58 u32 base, size;
59 int ret;
60
61 chip = get_chip_info(pdata: sdev->pdata);
62 if (!chip) {
63 dev_err(sdev->dev, "error: no such device supported\n");
64 return -EIO;
65 }
66
67 sdev->num_cores = chip->cores_num;
68
69 /* DSP DMA can only access low 31 bits of host memory */
70 ret = dma_coerce_mask_and_coherent(dev: &pci->dev, DMA_BIT_MASK(31));
71 if (ret < 0) {
72 dev_err(sdev->dev, "error: failed to set DMA mask %d\n", ret);
73 return ret;
74 }
75
76 /* LPE base */
77 base = pci_resource_start(pci, desc->resindex_lpe_base) - IRAM_OFFSET;
78 size = PCI_BAR_SIZE;
79
80 dev_dbg(sdev->dev, "LPE PHY base at 0x%x size 0x%x", base, size);
81 sdev->bar[DSP_BAR] = devm_ioremap(dev: sdev->dev, offset: base, size);
82 if (!sdev->bar[DSP_BAR]) {
83 dev_err(sdev->dev, "error: failed to ioremap LPE base 0x%x size 0x%x\n",
84 base, size);
85 return -ENODEV;
86 }
87 dev_dbg(sdev->dev, "LPE VADDR %p\n", sdev->bar[DSP_BAR]);
88
89 /* IMR base - optional */
90 if (desc->resindex_imr_base == -1)
91 goto irq;
92
93 base = pci_resource_start(pci, desc->resindex_imr_base);
94 size = pci_resource_len(pci, desc->resindex_imr_base);
95
96 /* some BIOSes don't map IMR */
97 if (base == 0x55aa55aa || base == 0x0) {
98 dev_info(sdev->dev, "IMR not set by BIOS. Ignoring\n");
99 goto irq;
100 }
101
102 dev_dbg(sdev->dev, "IMR base at 0x%x size 0x%x", base, size);
103 sdev->bar[IMR_BAR] = devm_ioremap(dev: sdev->dev, offset: base, size);
104 if (!sdev->bar[IMR_BAR]) {
105 dev_err(sdev->dev, "error: failed to ioremap IMR base 0x%x size 0x%x\n",
106 base, size);
107 return -ENODEV;
108 }
109 dev_dbg(sdev->dev, "IMR VADDR %p\n", sdev->bar[IMR_BAR]);
110
111irq:
112 /* register our IRQ */
113 sdev->ipc_irq = pci->irq;
114 dev_dbg(sdev->dev, "using IRQ %d\n", sdev->ipc_irq);
115 ret = devm_request_threaded_irq(dev: sdev->dev, irq: sdev->ipc_irq,
116 handler: atom_irq_handler, thread_fn: atom_irq_thread,
117 irqflags: 0, devname: "AudioDSP", dev_id: sdev);
118 if (ret < 0) {
119 dev_err(sdev->dev, "error: failed to register IRQ %d\n",
120 sdev->ipc_irq);
121 return ret;
122 }
123
124 /* enable BUSY and disable DONE Interrupt by default */
125 snd_sof_dsp_update_bits64(sdev, DSP_BAR, SHIM_IMRX,
126 SHIM_IMRX_BUSY | SHIM_IMRX_DONE,
127 SHIM_IMRX_DONE);
128
129 /* set default mailbox offset for FW ready message */
130 sdev->dsp_box.offset = MBOX_OFFSET;
131
132 return ret;
133}
134
135const struct snd_sof_dsp_ops sof_tng_ops = {
136 /* device init */
137 .probe = tangier_pci_probe,
138
139 /* DSP core boot / reset */
140 .run = atom_run,
141 .reset = atom_reset,
142
143 /* Register IO uses direct mmio */
144
145 /* Block IO */
146 .block_read = sof_block_read,
147 .block_write = sof_block_write,
148
149 /* Mailbox IO */
150 .mailbox_read = sof_mailbox_read,
151 .mailbox_write = sof_mailbox_write,
152
153 /* doorbell */
154 .irq_handler = atom_irq_handler,
155 .irq_thread = atom_irq_thread,
156
157 /* ipc */
158 .send_msg = atom_send_msg,
159 .get_mailbox_offset = atom_get_mailbox_offset,
160 .get_window_offset = atom_get_window_offset,
161
162 .ipc_msg_data = sof_ipc_msg_data,
163 .set_stream_data_offset = sof_set_stream_data_offset,
164
165 /* machine driver */
166 .machine_select = atom_machine_select,
167 .machine_register = sof_machine_register,
168 .machine_unregister = sof_machine_unregister,
169 .set_mach_params = atom_set_mach_params,
170
171 /* debug */
172 .debug_map = tng_debugfs,
173 .debug_map_count = ARRAY_SIZE(tng_debugfs),
174 .dbg_dump = atom_dump,
175 .debugfs_add_region_item = snd_sof_debugfs_add_region_item_iomem,
176
177 /* stream callbacks */
178 .pcm_open = sof_stream_pcm_open,
179 .pcm_close = sof_stream_pcm_close,
180
181 /*Firmware loading */
182 .load_firmware = snd_sof_load_firmware_memcpy,
183
184 /* DAI drivers */
185 .drv = atom_dai,
186 .num_drv = 3, /* we have only 3 SSPs on byt*/
187
188 /* ALSA HW info flags */
189 .hw_info = SNDRV_PCM_INFO_MMAP |
190 SNDRV_PCM_INFO_MMAP_VALID |
191 SNDRV_PCM_INFO_INTERLEAVED |
192 SNDRV_PCM_INFO_PAUSE |
193 SNDRV_PCM_INFO_BATCH,
194
195 .dsp_arch_ops = &sof_xtensa_arch_ops,
196};
197
198const struct sof_intel_dsp_desc tng_chip_info = {
199 .cores_num = 1,
200 .host_managed_cores_mask = 1,
201 .hw_ip_version = SOF_INTEL_TANGIER,
202};
203
204static const struct sof_dev_desc tng_desc = {
205 .machines = sof_tng_machines,
206 .resindex_lpe_base = 3, /* IRAM, but subtract IRAM offset */
207 .resindex_pcicfg_base = -1,
208 .resindex_imr_base = 0,
209 .irqindex_host_ipc = -1,
210 .chip_info = &tng_chip_info,
211 .ipc_supported_mask = BIT(SOF_IPC_TYPE_3),
212 .ipc_default = SOF_IPC_TYPE_3,
213 .default_fw_path = {
214 [SOF_IPC_TYPE_3] = "intel/sof",
215 },
216 .default_tplg_path = {
217 [SOF_IPC_TYPE_3] = "intel/sof-tplg",
218 },
219 .default_fw_filename = {
220 [SOF_IPC_TYPE_3] = "sof-byt.ri",
221 },
222 .nocodec_tplg_filename = "sof-byt.tplg",
223 .ops = &sof_tng_ops,
224};
225
226/* PCI IDs */
227static const struct pci_device_id sof_pci_ids[] = {
228 { PCI_DEVICE_DATA(INTEL, SST_TNG, &tng_desc) },
229 { 0, }
230};
231MODULE_DEVICE_TABLE(pci, sof_pci_ids);
232
233/* pci_driver definition */
234static struct pci_driver snd_sof_pci_intel_tng_driver = {
235 .name = "sof-audio-pci-intel-tng",
236 .id_table = sof_pci_ids,
237 .probe = sof_pci_probe,
238 .remove = sof_pci_remove,
239 .shutdown = sof_pci_shutdown,
240 .driver = {
241 .pm = pm_ptr(&sof_pci_pm),
242 },
243};
244module_pci_driver(snd_sof_pci_intel_tng_driver);
245
246MODULE_LICENSE("Dual BSD/GPL");
247MODULE_DESCRIPTION("SOF support for Tangier platforms");
248MODULE_IMPORT_NS("SND_SOC_SOF_XTENSA");
249MODULE_IMPORT_NS("SND_SOC_SOF_PCI_DEV");
250MODULE_IMPORT_NS("SND_SOC_SOF_INTEL_ATOM_HIFI_EP");
251

source code of linux/sound/soc/sof/intel/pci-tng.c