aboutsummaryrefslogtreecommitdiff
path: root/arch/arm/mach-msm/smd_debug.c
blob: 3b2dd717b788feb315d36cc5ec34cad57b3ebf1b (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
/* arch/arm/mach-msm/smd_debug.c
 *
 * Copyright (C) 2007 Google, Inc.
 * Author: Brian Swetland <swetland@google.com>
 *
 * This software is licensed under the terms of the GNU General Public
 * License version 2, as published by the Free Software Foundation, and
 * may be copied, distributed, and modified under those terms.
 *
 * 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/debugfs.h>
#include <linux/list.h>

#include <mach/msm_iomap.h>

#include "smd_private.h"

#if defined(CONFIG_DEBUG_FS)

static char *chstate(unsigned n)
{
	switch (n) {
	case SMD_SS_CLOSED:
		return "CLOSED";
	case SMD_SS_OPENING:
		return "OPENING";
	case SMD_SS_OPENED:
		return "OPENED";
	case SMD_SS_FLUSHING:
		return "FLUSHING";
	case SMD_SS_CLOSING:
		return "CLOSING";
	case SMD_SS_RESET:
		return "RESET";
	case SMD_SS_RESET_OPENING:
		return "ROPENING";
	default:
		return "UNKNOWN";
	}
}


static int dump_ch(char *buf, int max, struct smd_channel *ch)
{
	volatile struct smd_half_channel *s = ch->send;
	volatile struct smd_half_channel *r = ch->recv;

	return scnprintf(
		buf, max,
		"ch%02d:"
		" %8s(%05d/%05d) %c%c%c%c%c%c%c <->"
		" %8s(%05d/%05d) %c%c%c%c%c%c%c '%s'\n", ch->n,
		chstate(s->state), s->tail, s->head,
		s->fDSR ? 'D' : 'd',
		s->fCTS ? 'C' : 'c',
		s->fCD ? 'C' : 'c',
		s->fRI ? 'I' : 'i',
		s->fHEAD ? 'W' : 'w',
		s->fTAIL ? 'R' : 'r',
		s->fSTATE ? 'S' : 's',
		chstate(r->state), r->tail, r->head,
		r->fDSR ? 'D' : 'd',
		r->fCTS ? 'R' : 'r',
		r->fCD ? 'C' : 'c',
		r->fRI ? 'I' : 'i',
		r->fHEAD ? 'W' : 'w',
		r->fTAIL ? 'R' : 'r',
		r->fSTATE ? 'S' : 's',
		ch->name
		);
}

static int debug_read_stat(char *buf, int max)
{
	char *msg;
	int i = 0;

	msg = smem_find(ID_DIAG_ERR_MSG, SZ_DIAG_ERR_MSG);

	if (raw_smsm_get_state(SMSM_STATE_MODEM) & SMSM_RESET)
		i += scnprintf(buf + i, max - i,
			       "smsm: ARM9 HAS CRASHED\n");

	i += scnprintf(buf + i, max - i, "smsm: a9: %08x a11: %08x\n",
		       raw_smsm_get_state(SMSM_STATE_MODEM),
		       raw_smsm_get_state(SMSM_STATE_APPS));
#ifdef CONFIG_ARCH_MSM_SCORPION
	i += scnprintf(buf + i, max - i, "smsm dem: apps: %08x modem: %08x "
		       "qdsp6: %08x power: %08x time: %08x\n",
		       raw_smsm_get_state(SMSM_STATE_APPS_DEM),
		       raw_smsm_get_state(SMSM_STATE_MODEM_DEM),
		       raw_smsm_get_state(SMSM_STATE_QDSP6_DEM),
		       raw_smsm_get_state(SMSM_STATE_POWER_MASTER_DEM),
		       raw_smsm_get_state(SMSM_STATE_TIME_MASTER_DEM));
#endif
	if (msg) {
		msg[SZ_DIAG_ERR_MSG - 1] = 0;
		i += scnprintf(buf + i, max - i, "diag: '%s'\n", msg);
	}
	return i;
}

static int debug_read_mem(char *buf, int max)
{
	unsigned n;
	struct smem_shared *shared = (void *) MSM_SHARED_RAM_BASE;
	struct smem_heap_entry *toc = shared->heap_toc;
	int i = 0;

	i += scnprintf(buf + i, max - i,
		       "heap: init=%d free=%d remain=%d\n",
		       shared->heap_info.initialized,
		       shared->heap_info.free_offset,
		       shared->heap_info.heap_remaining);

	for (n = 0; n < SMEM_NUM_ITEMS; n++) {
		if (toc[n].allocated == 0)
			continue;
		i += scnprintf(buf + i, max - i,
			       "%04d: offset %08x size %08x\n",
			       n, toc[n].offset, toc[n].size);
	}
	return i;
}

static int debug_read_ch(char *buf, int max)
{
	struct smd_channel *ch;
	unsigned long flags;
	int i = 0;

	spin_lock_irqsave(&smd_lock, flags);
	list_for_each_entry(ch, &smd_ch_list_dsp, ch_list)
		i += dump_ch(buf + i, max - i, ch);
	list_for_each_entry(ch, &smd_ch_list_modem, ch_list)
		i += dump_ch(buf + i, max - i, ch);
	list_for_each_entry(ch, &smd_ch_closed_list, ch_list)
		i += dump_ch(buf + i, max - i, ch);
	spin_unlock_irqrestore(&smd_lock, flags);

	return i;
}

static int debug_read_version(char *buf, int max)
{
	struct smem_shared *shared = (void *) MSM_SHARED_RAM_BASE;
	unsigned version = shared->version[VERSION_MODEM];
	return sprintf(buf, "%d.%d\n", version >> 16, version & 0xffff);
}

static int debug_read_build_id(char *buf, int max)
{
	unsigned size;
	void *data;

	data = smem_item(SMEM_HW_SW_BUILD_ID, &size);
	if (!data)
		return 0;

	if (size >= max)
		size = max;
	memcpy(buf, data, size);

	return size;
}

static int debug_read_alloc_tbl(char *buf, int max)
{
	struct smd_alloc_elm *shared;
	int n, i = 0;

	shared = smem_find(ID_CH_ALLOC_TBL, sizeof(*shared) * 64);

	for (n = 0; n < 64; n++) {
		if (shared[n].ref_count == 0)
			continue;
		i += scnprintf(buf + i, max - i,
			       "%03d: %-20s cid=%02d type=%03d "
			       "kind=%02d ref_count=%d\n",
			       n, shared[n].name, shared[n].cid,
			       shared[n].ctype & 0xff,
			       (shared[n].ctype >> 8) & 0xf,
			       shared[n].ref_count);
	}

	return i;
}

#define DEBUG_BUFMAX 4096
static char debug_buffer[DEBUG_BUFMAX];

static ssize_t debug_read(struct file *file, char __user *buf,
			  size_t count, loff_t *ppos)
{
	int (*fill)(char *buf, int max) = file->private_data;
	int bsize = fill(debug_buffer, DEBUG_BUFMAX);
	return simple_read_from_buffer(buf, count, ppos, debug_buffer, bsize);
}

static int debug_open(struct inode *inode, struct file *file)
{
	file->private_data = inode->i_private;
	return 0;
}

static const struct file_operations debug_ops = {
	.read = debug_read,
	.open = debug_open,
};

static void debug_create(const char *name, mode_t mode,
			 struct dentry *dent,
			 int (*fill)(char *buf, int max))
{
	debugfs_create_file(name, mode, dent, fill, &debug_ops);
}

static int smd_debugfs_init(void)
{
	struct dentry *dent;

	dent = debugfs_create_dir("smd", 0);
	if (IS_ERR(dent))
		return 1;

	debug_create("ch", 0444, dent, debug_read_ch);
	debug_create("stat", 0444, dent, debug_read_stat);
	debug_create("mem", 0444, dent, debug_read_mem);
	debug_create("version", 0444, dent, debug_read_version);
	debug_create("tbl", 0444, dent, debug_read_alloc_tbl);
	debug_create("build", 0444, dent, debug_read_build_id);

	return 0;
}

late_initcall(smd_debugfs_init);
#endif


#define MAX_NUM_SLEEP_CLIENTS		64
#define MAX_SLEEP_NAME_LEN		8

#define NUM_GPIO_INT_REGISTERS		6
#define GPIO_SMEM_NUM_GROUPS		2
#define GPIO_SMEM_MAX_PC_INTERRUPTS	8

struct tramp_gpio_save {
	unsigned int enable;
	unsigned int detect;
	unsigned int polarity;
};

struct tramp_gpio_smem {
	uint16_t num_fired[GPIO_SMEM_NUM_GROUPS];
	uint16_t fired[GPIO_SMEM_NUM_GROUPS][GPIO_SMEM_MAX_PC_INTERRUPTS];
	uint32_t enabled[NUM_GPIO_INT_REGISTERS];
	uint32_t detection[NUM_GPIO_INT_REGISTERS];
	uint32_t polarity[NUM_GPIO_INT_REGISTERS];
};


void smsm_print_sleep_info(void)
{
	unsigned long flags;
	uint32_t *ptr;
	struct tramp_gpio_smem *gpio;
	struct smsm_interrupt_info *int_info;


	spin_lock_irqsave(&smem_lock, flags);

	ptr = smem_alloc(SMEM_SMSM_SLEEP_DELAY, sizeof(*ptr));
	if (ptr)
		pr_info("SMEM_SMSM_SLEEP_DELAY: %x\n", *ptr);

	ptr = smem_alloc(SMEM_SMSM_LIMIT_SLEEP, sizeof(*ptr));
	if (ptr)
		pr_info("SMEM_SMSM_LIMIT_SLEEP: %x\n", *ptr);

	ptr = smem_alloc(SMEM_SLEEP_POWER_COLLAPSE_DISABLED, sizeof(*ptr));
	if (ptr)
		pr_info("SMEM_SLEEP_POWER_COLLAPSE_DISABLED: %x\n", *ptr);

#ifndef CONFIG_ARCH_MSM_SCORPION
	int_info = smem_alloc(SMEM_SMSM_INT_INFO, sizeof(*int_info));
	if (int_info)
		pr_info("SMEM_SMSM_INT_INFO %x %x %x\n",
			int_info->interrupt_mask,
			int_info->pending_interrupts,
			int_info->wakeup_reason);

	gpio = smem_alloc(SMEM_GPIO_INT, sizeof(*gpio));
	if (gpio) {
		int i;
		for (i = 0; i < NUM_GPIO_INT_REGISTERS; i++)
			pr_info("SMEM_GPIO_INT: %d: e %x d %x p %x\n",
				i, gpio->enabled[i], gpio->detection[i],
				gpio->polarity[i]);

		for (i = 0; i < GPIO_SMEM_NUM_GROUPS; i++)
			pr_info("SMEM_GPIO_INT: %d: f %d: %d %d...\n",
				i, gpio->num_fired[i], gpio->fired[i][0],
				gpio->fired[i][1]);
	}
#else
#endif
	spin_unlock_irqrestore(&smem_lock, flags);
}