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 "skl.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.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 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 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 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\tHomogenous Input %s\n\t" 146 "Homogenous 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 }; 167 168 169 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 } 178 179 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 }; 223 224 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->platform->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