2 * skl-debug.c - Debugfs for skl driver
4 * Copyright (C) 2016-17 Intel Corp
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.
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.
16 #include <linux/pci.h>
17 #include <linux/debugfs.h>
19 #include "skl-sst-dsp.h"
20 #include "skl-sst-ipc.h"
21 #include "skl-tplg-interface.h"
22 #include "skl-topology.h"
23 #include "../common/sst-dsp-priv.h"
25 #define MOD_BUF PAGE_SIZE
26 #define FW_REG_BUF PAGE_SIZE
27 #define FW_REG_SIZE 0x60
34 struct dentry *modules;
35 u8 fw_read_buff[FW_REG_BUF];
38 static ssize_t skl_print_pins(struct skl_module_pin *m_pin, char *buf,
39 int max_pin, ssize_t size, bool direction)
44 for (i = 0; i < max_pin; i++)
45 ret += snprintf(buf + size, MOD_BUF - size,
46 "%s %d\n\tModule %d\n\tInstance %d\n\t"
47 "In-used %s\n\tType %s\n"
48 "\tState %d\n\tIndex %d\n",
49 direction ? "Input Pin:" : "Output Pin:",
50 i, m_pin[i].id.module_id,
51 m_pin[i].id.instance_id,
52 m_pin[i].in_use ? "Used" : "Unused",
53 m_pin[i].is_dynamic ? "Dynamic" : "Static",
54 m_pin[i].pin_state, i);
58 static ssize_t skl_print_fmt(struct skl_module_fmt *fmt, char *buf,
59 ssize_t size, bool direction)
61 return snprintf(buf + size, MOD_BUF - size,
62 "%s\n\tCh %d\n\tFreq %d\n\tBit depth %d\n\t"
63 "Valid bit depth %d\n\tCh config %#x\n\tInterleaving %d\n\t"
64 "Sample Type %d\n\tCh Map %#x\n",
65 direction ? "Input Format:" : "Output Format:",
66 fmt->channels, fmt->s_freq, fmt->bit_depth,
67 fmt->valid_bit_depth, fmt->ch_cfg,
68 fmt->interleaving_style, fmt->sample_type,
72 static ssize_t module_read(struct file *file, char __user *user_buf,
73 size_t count, loff_t *ppos)
75 struct skl_module_cfg *mconfig = file->private_data;
79 buf = kzalloc(MOD_BUF, GFP_KERNEL);
83 ret = snprintf(buf, MOD_BUF, "Module:\n\tUUID %pUL\n\tModule id %d\n"
84 "\tInstance id %d\n\tPvt_id %d\n", mconfig->guid,
85 mconfig->id.module_id, mconfig->id.instance_id,
88 ret += snprintf(buf + ret, MOD_BUF - ret,
89 "Resources:\n\tMCPS %#x\n\tIBS %#x\n\tOBS %#x\t\n",
90 mconfig->mcps, mconfig->ibs, mconfig->obs);
92 ret += snprintf(buf + ret, MOD_BUF - ret,
93 "Module data:\n\tCore %d\n\tIn queue %d\n\t"
94 "Out queue %d\n\tType %s\n",
95 mconfig->core_id, mconfig->max_in_queue,
96 mconfig->max_out_queue,
97 mconfig->is_loadable ? "loadable" : "inbuilt");
99 ret += skl_print_fmt(mconfig->in_fmt, buf, ret, true);
100 ret += skl_print_fmt(mconfig->out_fmt, buf, ret, false);
102 ret += snprintf(buf + ret, MOD_BUF - ret,
103 "Fixup:\n\tParams %#x\n\tConverter %#x\n",
104 mconfig->params_fixup, mconfig->converter);
106 ret += snprintf(buf + ret, MOD_BUF - ret,
107 "Module Gateway:\n\tType %#x\n\tVbus %#x\n\tHW conn %#x\n\tSlot %#x\n",
108 mconfig->dev_type, mconfig->vbus_id,
109 mconfig->hw_conn_type, mconfig->time_slot);
111 ret += snprintf(buf + ret, MOD_BUF - ret,
112 "Pipeline:\n\tID %d\n\tPriority %d\n\tConn Type %d\n\t"
113 "Pages %#x\n", mconfig->pipe->ppl_id,
114 mconfig->pipe->pipe_priority, mconfig->pipe->conn_type,
115 mconfig->pipe->memory_pages);
117 ret += snprintf(buf + ret, MOD_BUF - ret,
118 "\tParams:\n\t\tHost DMA %d\n\t\tLink DMA %d\n",
119 mconfig->pipe->p_params->host_dma_id,
120 mconfig->pipe->p_params->link_dma_id);
122 ret += snprintf(buf + ret, MOD_BUF - ret,
123 "\tPCM params:\n\t\tCh %d\n\t\tFreq %d\n\t\tFormat %d\n",
124 mconfig->pipe->p_params->ch,
125 mconfig->pipe->p_params->s_freq,
126 mconfig->pipe->p_params->s_fmt);
128 ret += snprintf(buf + ret, MOD_BUF - ret,
129 "\tLink %#x\n\tStream %#x\n",
130 mconfig->pipe->p_params->linktype,
131 mconfig->pipe->p_params->stream);
133 ret += snprintf(buf + ret, MOD_BUF - ret,
134 "\tState %d\n\tPassthru %s\n",
135 mconfig->pipe->state,
136 mconfig->pipe->passthru ? "true" : "false");
138 ret += skl_print_pins(mconfig->m_in_pin, buf,
139 mconfig->max_in_queue, ret, true);
140 ret += skl_print_pins(mconfig->m_out_pin, buf,
141 mconfig->max_out_queue, ret, false);
143 ret += snprintf(buf + ret, MOD_BUF - ret,
144 "Other:\n\tDomain %d\n\tHomogenous Input %s\n\t"
145 "Homogenous Output %s\n\tIn Queue Mask %d\n\t"
146 "Out Queue Mask %d\n\tDMA ID %d\n\tMem Pages %d\n\t"
147 "Module Type %d\n\tModule State %d\n",
149 mconfig->homogenous_inputs ? "true" : "false",
150 mconfig->homogenous_outputs ? "true" : "false",
151 mconfig->in_queue_mask, mconfig->out_queue_mask,
152 mconfig->dma_id, mconfig->mem_pages, mconfig->m_state,
155 ret = simple_read_from_buffer(user_buf, count, ppos, buf, ret);
161 static const struct file_operations mcfg_fops = {
164 .llseek = default_llseek,
168 void skl_debug_init_module(struct skl_debug *d,
169 struct snd_soc_dapm_widget *w,
170 struct skl_module_cfg *mconfig)
172 if (!debugfs_create_file(w->name, 0444,
175 dev_err(d->dev, "%s: module debugfs init failed\n", w->name);
178 static ssize_t fw_softreg_read(struct file *file, char __user *user_buf,
179 size_t count, loff_t *ppos)
181 struct skl_debug *d = file->private_data;
182 struct sst_dsp *sst = d->skl->skl_sst->dsp;
183 size_t w0_stat_sz = sst->addr.w0_stat_sz;
184 void __iomem *in_base = sst->mailbox.in_base;
185 void __iomem *fw_reg_addr;
190 tmp = kzalloc(FW_REG_BUF, GFP_KERNEL);
194 fw_reg_addr = in_base - w0_stat_sz;
195 memset(d->fw_read_buff, 0, FW_REG_BUF);
198 __iowrite32_copy(d->fw_read_buff, fw_reg_addr, w0_stat_sz >> 2);
200 for (offset = 0; offset < FW_REG_SIZE; offset += 16) {
201 ret += snprintf(tmp + ret, FW_REG_BUF - ret, "%#.4x: ", offset);
202 hex_dump_to_buffer(d->fw_read_buff + offset, 16, 16, 4,
203 tmp + ret, FW_REG_BUF - ret, 0);
204 ret += strlen(tmp + ret);
206 /* print newline for each offset */
207 if (FW_REG_BUF - ret > 0)
211 ret = simple_read_from_buffer(user_buf, count, ppos, tmp, ret);
217 static const struct file_operations soft_regs_ctrl_fops = {
219 .read = fw_softreg_read,
220 .llseek = default_llseek,
223 struct skl_debug *skl_debugfs_init(struct skl *skl)
227 d = devm_kzalloc(&skl->pci->dev, sizeof(*d), GFP_KERNEL);
231 /* create the debugfs dir with platform component's debugfs as parent */
232 d->fs = debugfs_create_dir("dsp",
233 skl->platform->component.debugfs_root);
234 if (IS_ERR(d->fs) || !d->fs) {
235 dev_err(&skl->pci->dev, "debugfs root creation failed\n");
240 d->dev = &skl->pci->dev;
242 /* now create the module dir */
243 d->modules = debugfs_create_dir("modules", d->fs);
244 if (IS_ERR(d->modules) || !d->modules) {
245 dev_err(&skl->pci->dev, "modules debugfs create failed\n");
249 if (!debugfs_create_file("fw_soft_regs_rd", 0444, d->fs, d,
250 &soft_regs_ctrl_fops)) {
251 dev_err(d->dev, "fw soft regs control debugfs init failed\n");
258 debugfs_remove_recursive(d->fs);
262 void skl_debugfs_exit(struct skl_debug *d)
264 debugfs_remove_recursive(d->fs);