1 /*
2 * skl-debug.c - Debugfs for skl driver
3 *
4 * Copyright (C) 2016-17 Intel Corp
5 *
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation; version 2 of the License.
9 *
10 * This program is distributed in the hope that it will be useful, but
11 * WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 * General Public License for more details.
14 */
15
16 #include <linux/pci.h>
17 #include <linux/debugfs.h>
18 #include <uapi/sound/skl-tplg-interface.h>
19 #include "skl.h"
20 #include "skl-sst-dsp.h"
21 #include "skl-sst-ipc.h"
22 #include "skl-topology.h"
23 #include "../common/sst-dsp.h"
24 #include "../common/sst-dsp-priv.h"
25
26 #define MOD_BUF PAGE_SIZE
27 #define FW_REG_BUF PAGE_SIZE
28 #define FW_REG_SIZE 0x60
29
30 struct skl_debug {
31 struct skl *skl;
32 struct device *dev;
33
34 struct dentry *fs;
35 struct dentry *modules;
36 u8 fw_read_buff[FW_REG_BUF];
37 };
38
skl_print_pins(struct skl_module_pin * m_pin,char * buf,int max_pin,ssize_t size,bool direction)39 static ssize_t skl_print_pins(struct skl_module_pin *m_pin, char *buf,
40 int max_pin, ssize_t size, bool direction)
41 {
42 int i;
43 ssize_t ret = 0;
44
45 for (i = 0; i < max_pin; i++)
46 ret += snprintf(buf + size, MOD_BUF - size,
47 "%s %d\n\tModule %d\n\tInstance %d\n\t"
48 "In-used %s\n\tType %s\n"
49 "\tState %d\n\tIndex %d\n",
50 direction ? "Input Pin:" : "Output Pin:",
51 i, m_pin[i].id.module_id,
52 m_pin[i].id.instance_id,
53 m_pin[i].in_use ? "Used" : "Unused",
54 m_pin[i].is_dynamic ? "Dynamic" : "Static",
55 m_pin[i].pin_state, i);
56 return ret;
57 }
58
skl_print_fmt(struct skl_module_fmt * fmt,char * buf,ssize_t size,bool direction)59 static ssize_t skl_print_fmt(struct skl_module_fmt *fmt, char *buf,
60 ssize_t size, bool direction)
61 {
62 return snprintf(buf + size, MOD_BUF - size,
63 "%s\n\tCh %d\n\tFreq %d\n\tBit depth %d\n\t"
64 "Valid bit depth %d\n\tCh config %#x\n\tInterleaving %d\n\t"
65 "Sample Type %d\n\tCh Map %#x\n",
66 direction ? "Input Format:" : "Output Format:",
67 fmt->channels, fmt->s_freq, fmt->bit_depth,
68 fmt->valid_bit_depth, fmt->ch_cfg,
69 fmt->interleaving_style, fmt->sample_type,
70 fmt->ch_map);
71 }
72
module_read(struct file * file,char __user * user_buf,size_t count,loff_t * ppos)73 static ssize_t module_read(struct file *file, char __user *user_buf,
74 size_t count, loff_t *ppos)
75 {
76 struct skl_module_cfg *mconfig = file->private_data;
77 char *buf;
78 ssize_t ret;
79
80 buf = kzalloc(MOD_BUF, GFP_KERNEL);
81 if (!buf)
82 return -ENOMEM;
83
84 ret = snprintf(buf, MOD_BUF, "Module:\n\tUUID %pUL\n\tModule id %d\n"
85 "\tInstance id %d\n\tPvt_id %d\n", mconfig->guid,
86 mconfig->id.module_id, mconfig->id.instance_id,
87 mconfig->id.pvt_id);
88
89 ret += snprintf(buf + ret, MOD_BUF - ret,
90 "Resources:\n\tMCPS %#x\n\tIBS %#x\n\tOBS %#x\t\n",
91 mconfig->mcps, mconfig->ibs, mconfig->obs);
92
93 ret += snprintf(buf + ret, MOD_BUF - ret,
94 "Module data:\n\tCore %d\n\tIn queue %d\n\t"
95 "Out queue %d\n\tType %s\n",
96 mconfig->core_id, mconfig->max_in_queue,
97 mconfig->max_out_queue,
98 mconfig->is_loadable ? "loadable" : "inbuilt");
99
100 ret += skl_print_fmt(mconfig->in_fmt, buf, ret, true);
101 ret += skl_print_fmt(mconfig->out_fmt, buf, ret, false);
102
103 ret += snprintf(buf + ret, MOD_BUF - ret,
104 "Fixup:\n\tParams %#x\n\tConverter %#x\n",
105 mconfig->params_fixup, mconfig->converter);
106
107 ret += snprintf(buf + ret, MOD_BUF - ret,
108 "Module Gateway:\n\tType %#x\n\tVbus %#x\n\tHW conn %#x\n\tSlot %#x\n",
109 mconfig->dev_type, mconfig->vbus_id,
110 mconfig->hw_conn_type, mconfig->time_slot);
111
112 ret += snprintf(buf + ret, MOD_BUF - ret,
113 "Pipeline:\n\tID %d\n\tPriority %d\n\tConn Type %d\n\t"
114 "Pages %#x\n", mconfig->pipe->ppl_id,
115 mconfig->pipe->pipe_priority, mconfig->pipe->conn_type,
116 mconfig->pipe->memory_pages);
117
118 ret += snprintf(buf + ret, MOD_BUF - ret,
119 "\tParams:\n\t\tHost DMA %d\n\t\tLink DMA %d\n",
120 mconfig->pipe->p_params->host_dma_id,
121 mconfig->pipe->p_params->link_dma_id);
122
123 ret += snprintf(buf + ret, MOD_BUF - ret,
124 "\tPCM params:\n\t\tCh %d\n\t\tFreq %d\n\t\tFormat %d\n",
125 mconfig->pipe->p_params->ch,
126 mconfig->pipe->p_params->s_freq,
127 mconfig->pipe->p_params->s_fmt);
128
129 ret += snprintf(buf + ret, MOD_BUF - ret,
130 "\tLink %#x\n\tStream %#x\n",
131 mconfig->pipe->p_params->linktype,
132 mconfig->pipe->p_params->stream);
133
134 ret += snprintf(buf + ret, MOD_BUF - ret,
135 "\tState %d\n\tPassthru %s\n",
136 mconfig->pipe->state,
137 mconfig->pipe->passthru ? "true" : "false");
138
139 ret += skl_print_pins(mconfig->m_in_pin, buf,
140 mconfig->max_in_queue, ret, true);
141 ret += skl_print_pins(mconfig->m_out_pin, buf,
142 mconfig->max_out_queue, ret, false);
143
144 ret += snprintf(buf + ret, MOD_BUF - ret,
145 "Other:\n\tDomain %d\n\tHomogeneous Input %s\n\t"
146 "Homogeneous Output %s\n\tIn Queue Mask %d\n\t"
147 "Out Queue Mask %d\n\tDMA ID %d\n\tMem Pages %d\n\t"
148 "Module Type %d\n\tModule State %d\n",
149 mconfig->domain,
150 mconfig->homogenous_inputs ? "true" : "false",
151 mconfig->homogenous_outputs ? "true" : "false",
152 mconfig->in_queue_mask, mconfig->out_queue_mask,
153 mconfig->dma_id, mconfig->mem_pages, mconfig->m_state,
154 mconfig->m_type);
155
156 ret = simple_read_from_buffer(user_buf, count, ppos, buf, ret);
157
158 kfree(buf);
159 return ret;
160 }
161
162 static const struct file_operations mcfg_fops = {
163 .open = simple_open,
164 .read = module_read,
165 .llseek = default_llseek,
166 };
167
168
skl_debug_init_module(struct skl_debug * d,struct snd_soc_dapm_widget * w,struct skl_module_cfg * mconfig)169 void skl_debug_init_module(struct skl_debug *d,
170 struct snd_soc_dapm_widget *w,
171 struct skl_module_cfg *mconfig)
172 {
173 if (!debugfs_create_file(w->name, 0444,
174 d->modules, mconfig,
175 &mcfg_fops))
176 dev_err(d->dev, "%s: module debugfs init failed\n", w->name);
177 }
178
fw_softreg_read(struct file * file,char __user * user_buf,size_t count,loff_t * ppos)179 static ssize_t fw_softreg_read(struct file *file, char __user *user_buf,
180 size_t count, loff_t *ppos)
181 {
182 struct skl_debug *d = file->private_data;
183 struct sst_dsp *sst = d->skl->skl_sst->dsp;
184 size_t w0_stat_sz = sst->addr.w0_stat_sz;
185 void __iomem *in_base = sst->mailbox.in_base;
186 void __iomem *fw_reg_addr;
187 unsigned int offset;
188 char *tmp;
189 ssize_t ret = 0;
190
191 tmp = kzalloc(FW_REG_BUF, GFP_KERNEL);
192 if (!tmp)
193 return -ENOMEM;
194
195 fw_reg_addr = in_base - w0_stat_sz;
196 memset(d->fw_read_buff, 0, FW_REG_BUF);
197
198 if (w0_stat_sz > 0)
199 __iowrite32_copy(d->fw_read_buff, fw_reg_addr, w0_stat_sz >> 2);
200
201 for (offset = 0; offset < FW_REG_SIZE; offset += 16) {
202 ret += snprintf(tmp + ret, FW_REG_BUF - ret, "%#.4x: ", offset);
203 hex_dump_to_buffer(d->fw_read_buff + offset, 16, 16, 4,
204 tmp + ret, FW_REG_BUF - ret, 0);
205 ret += strlen(tmp + ret);
206
207 /* print newline for each offset */
208 if (FW_REG_BUF - ret > 0)
209 tmp[ret++] = '\n';
210 }
211
212 ret = simple_read_from_buffer(user_buf, count, ppos, tmp, ret);
213 kfree(tmp);
214
215 return ret;
216 }
217
218 static const struct file_operations soft_regs_ctrl_fops = {
219 .open = simple_open,
220 .read = fw_softreg_read,
221 .llseek = default_llseek,
222 };
223
skl_debugfs_init(struct skl * skl)224 struct skl_debug *skl_debugfs_init(struct skl *skl)
225 {
226 struct skl_debug *d;
227
228 d = devm_kzalloc(&skl->pci->dev, sizeof(*d), GFP_KERNEL);
229 if (!d)
230 return NULL;
231
232 /* create the debugfs dir with platform component's debugfs as parent */
233 d->fs = debugfs_create_dir("dsp",
234 skl->component->debugfs_root);
235 if (IS_ERR(d->fs) || !d->fs) {
236 dev_err(&skl->pci->dev, "debugfs root creation failed\n");
237 return NULL;
238 }
239
240 d->skl = skl;
241 d->dev = &skl->pci->dev;
242
243 /* now create the module dir */
244 d->modules = debugfs_create_dir("modules", d->fs);
245 if (IS_ERR(d->modules) || !d->modules) {
246 dev_err(&skl->pci->dev, "modules debugfs create failed\n");
247 goto err;
248 }
249
250 if (!debugfs_create_file("fw_soft_regs_rd", 0444, d->fs, d,
251 &soft_regs_ctrl_fops)) {
252 dev_err(d->dev, "fw soft regs control debugfs init failed\n");
253 goto err;
254 }
255
256 return d;
257
258 err:
259 debugfs_remove_recursive(d->fs);
260 return NULL;
261 }
262
