2009-07-01 18:58:37 -06:00
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/* arch/arm/mach-msm/smd_debug.c
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*
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* Copyright (C) 2007 Google, Inc.
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* Author: Brian Swetland <swetland@google.com>
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*
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* This software is licensed under the terms of the GNU General Public
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* License version 2, as published by the Free Software Foundation, and
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* may be copied, distributed, and modified under those terms.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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*/
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#include <linux/debugfs.h>
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#include <linux/list.h>
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#include <mach/msm_iomap.h>
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#include "smd_private.h"
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#if defined(CONFIG_DEBUG_FS)
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static char *chstate(unsigned n)
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{
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switch (n) {
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case SMD_SS_CLOSED:
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return "CLOSED";
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case SMD_SS_OPENING:
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return "OPENING";
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case SMD_SS_OPENED:
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return "OPENED";
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case SMD_SS_FLUSHING:
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return "FLUSHING";
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case SMD_SS_CLOSING:
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return "CLOSING";
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case SMD_SS_RESET:
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return "RESET";
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case SMD_SS_RESET_OPENING:
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return "ROPENING";
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default:
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return "UNKNOWN";
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}
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}
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static int dump_ch(char *buf, int max, struct smd_channel *ch)
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{
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volatile struct smd_half_channel *s = ch->send;
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volatile struct smd_half_channel *r = ch->recv;
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return scnprintf(
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buf, max,
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"ch%02d:"
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" %8s(%05d/%05d) %c%c%c%c%c%c%c <->"
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2009-07-01 19:30:47 -06:00
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" %8s(%05d/%05d) %c%c%c%c%c%c%c '%s'\n", ch->n,
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2009-07-01 18:58:37 -06:00
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chstate(s->state), s->tail, s->head,
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s->fDSR ? 'D' : 'd',
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s->fCTS ? 'C' : 'c',
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s->fCD ? 'C' : 'c',
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s->fRI ? 'I' : 'i',
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s->fHEAD ? 'W' : 'w',
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s->fTAIL ? 'R' : 'r',
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s->fSTATE ? 'S' : 's',
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chstate(r->state), r->tail, r->head,
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r->fDSR ? 'D' : 'd',
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r->fCTS ? 'R' : 'r',
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r->fCD ? 'C' : 'c',
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r->fRI ? 'I' : 'i',
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r->fHEAD ? 'W' : 'w',
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r->fTAIL ? 'R' : 'r',
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2009-07-01 19:30:47 -06:00
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r->fSTATE ? 'S' : 's',
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ch->name
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2009-07-01 18:58:37 -06:00
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);
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}
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static int debug_read_stat(char *buf, int max)
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{
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char *msg;
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int i = 0;
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msg = smem_find(ID_DIAG_ERR_MSG, SZ_DIAG_ERR_MSG);
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if (raw_smsm_get_state(SMSM_STATE_MODEM) & SMSM_RESET)
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i += scnprintf(buf + i, max - i,
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"smsm: ARM9 HAS CRASHED\n");
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i += scnprintf(buf + i, max - i, "smsm: a9: %08x a11: %08x\n",
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raw_smsm_get_state(SMSM_STATE_MODEM),
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raw_smsm_get_state(SMSM_STATE_APPS));
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#ifdef CONFIG_ARCH_MSM_SCORPION
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i += scnprintf(buf + i, max - i, "smsm dem: apps: %08x modem: %08x "
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"qdsp6: %08x power: %08x time: %08x\n",
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raw_smsm_get_state(SMSM_STATE_APPS_DEM),
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raw_smsm_get_state(SMSM_STATE_MODEM_DEM),
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raw_smsm_get_state(SMSM_STATE_QDSP6_DEM),
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raw_smsm_get_state(SMSM_STATE_POWER_MASTER_DEM),
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raw_smsm_get_state(SMSM_STATE_TIME_MASTER_DEM));
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#endif
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if (msg) {
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msg[SZ_DIAG_ERR_MSG - 1] = 0;
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i += scnprintf(buf + i, max - i, "diag: '%s'\n", msg);
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}
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return i;
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}
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static int debug_read_mem(char *buf, int max)
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{
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unsigned n;
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struct smem_shared *shared = (void *) MSM_SHARED_RAM_BASE;
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struct smem_heap_entry *toc = shared->heap_toc;
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int i = 0;
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i += scnprintf(buf + i, max - i,
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"heap: init=%d free=%d remain=%d\n",
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shared->heap_info.initialized,
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shared->heap_info.free_offset,
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shared->heap_info.heap_remaining);
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for (n = 0; n < SMEM_NUM_ITEMS; n++) {
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if (toc[n].allocated == 0)
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continue;
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i += scnprintf(buf + i, max - i,
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"%04d: offset %08x size %08x\n",
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n, toc[n].offset, toc[n].size);
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}
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return i;
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}
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static int debug_read_ch(char *buf, int max)
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{
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struct smd_channel *ch;
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unsigned long flags;
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int i = 0;
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spin_lock_irqsave(&smd_lock, flags);
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list_for_each_entry(ch, &smd_ch_list_dsp, ch_list)
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i += dump_ch(buf + i, max - i, ch);
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list_for_each_entry(ch, &smd_ch_list_modem, ch_list)
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i += dump_ch(buf + i, max - i, ch);
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list_for_each_entry(ch, &smd_ch_closed_list, ch_list)
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i += dump_ch(buf + i, max - i, ch);
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spin_unlock_irqrestore(&smd_lock, flags);
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return i;
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}
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static int debug_read_version(char *buf, int max)
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{
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struct smem_shared *shared = (void *) MSM_SHARED_RAM_BASE;
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unsigned version = shared->version[VERSION_MODEM];
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return sprintf(buf, "%d.%d\n", version >> 16, version & 0xffff);
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}
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static int debug_read_build_id(char *buf, int max)
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{
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unsigned size;
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void *data;
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data = smem_item(SMEM_HW_SW_BUILD_ID, &size);
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if (!data)
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return 0;
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if (size >= max)
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size = max;
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memcpy(buf, data, size);
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return size;
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}
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static int debug_read_alloc_tbl(char *buf, int max)
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{
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struct smd_alloc_elm *shared;
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int n, i = 0;
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shared = smem_find(ID_CH_ALLOC_TBL, sizeof(*shared) * 64);
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for (n = 0; n < 64; n++) {
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if (shared[n].ref_count == 0)
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continue;
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i += scnprintf(buf + i, max - i,
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"%03d: %-20s cid=%02d type=%03d "
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"kind=%02d ref_count=%d\n",
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n, shared[n].name, shared[n].cid,
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shared[n].ctype & 0xff,
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(shared[n].ctype >> 8) & 0xf,
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shared[n].ref_count);
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}
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return i;
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}
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#define DEBUG_BUFMAX 4096
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static char debug_buffer[DEBUG_BUFMAX];
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static ssize_t debug_read(struct file *file, char __user *buf,
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size_t count, loff_t *ppos)
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{
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int (*fill)(char *buf, int max) = file->private_data;
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int bsize = fill(debug_buffer, DEBUG_BUFMAX);
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return simple_read_from_buffer(buf, count, ppos, debug_buffer, bsize);
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}
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static int debug_open(struct inode *inode, struct file *file)
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{
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file->private_data = inode->i_private;
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return 0;
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}
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static const struct file_operations debug_ops = {
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.read = debug_read,
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.open = debug_open,
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};
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static void debug_create(const char *name, mode_t mode,
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struct dentry *dent,
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int (*fill)(char *buf, int max))
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{
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debugfs_create_file(name, mode, dent, fill, &debug_ops);
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}
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static void smd_debugfs_init(void)
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{
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struct dentry *dent;
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dent = debugfs_create_dir("smd", 0);
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if (IS_ERR(dent))
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return;
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debug_create("ch", 0444, dent, debug_read_ch);
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debug_create("stat", 0444, dent, debug_read_stat);
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debug_create("mem", 0444, dent, debug_read_mem);
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debug_create("version", 0444, dent, debug_read_version);
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debug_create("tbl", 0444, dent, debug_read_alloc_tbl);
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debug_create("build", 0444, dent, debug_read_build_id);
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}
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late_initcall(smd_debugfs_init);
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#endif
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#define MAX_NUM_SLEEP_CLIENTS 64
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#define MAX_SLEEP_NAME_LEN 8
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#define NUM_GPIO_INT_REGISTERS 6
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#define GPIO_SMEM_NUM_GROUPS 2
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#define GPIO_SMEM_MAX_PC_INTERRUPTS 8
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struct tramp_gpio_save {
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unsigned int enable;
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unsigned int detect;
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unsigned int polarity;
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};
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struct tramp_gpio_smem {
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uint16_t num_fired[GPIO_SMEM_NUM_GROUPS];
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uint16_t fired[GPIO_SMEM_NUM_GROUPS][GPIO_SMEM_MAX_PC_INTERRUPTS];
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uint32_t enabled[NUM_GPIO_INT_REGISTERS];
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uint32_t detection[NUM_GPIO_INT_REGISTERS];
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uint32_t polarity[NUM_GPIO_INT_REGISTERS];
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};
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void smsm_print_sleep_info(void)
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{
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unsigned long flags;
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uint32_t *ptr;
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struct tramp_gpio_smem *gpio;
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struct smsm_interrupt_info *int_info;
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spin_lock_irqsave(&smem_lock, flags);
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ptr = smem_alloc(SMEM_SMSM_SLEEP_DELAY, sizeof(*ptr));
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if (ptr)
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pr_info("SMEM_SMSM_SLEEP_DELAY: %x\n", *ptr);
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ptr = smem_alloc(SMEM_SMSM_LIMIT_SLEEP, sizeof(*ptr));
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if (ptr)
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pr_info("SMEM_SMSM_LIMIT_SLEEP: %x\n", *ptr);
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ptr = smem_alloc(SMEM_SLEEP_POWER_COLLAPSE_DISABLED, sizeof(*ptr));
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if (ptr)
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pr_info("SMEM_SLEEP_POWER_COLLAPSE_DISABLED: %x\n", *ptr);
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#ifndef CONFIG_ARCH_MSM_SCORPION
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int_info = smem_alloc(SMEM_SMSM_INT_INFO, sizeof(*int_info));
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if (int_info)
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pr_info("SMEM_SMSM_INT_INFO %x %x %x\n",
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int_info->interrupt_mask,
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int_info->pending_interrupts,
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int_info->wakeup_reason);
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gpio = smem_alloc(SMEM_GPIO_INT, sizeof(*gpio));
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if (gpio) {
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int i;
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for (i = 0; i < NUM_GPIO_INT_REGISTERS; i++)
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pr_info("SMEM_GPIO_INT: %d: e %x d %x p %x\n",
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i, gpio->enabled[i], gpio->detection[i],
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gpio->polarity[i]);
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for (i = 0; i < GPIO_SMEM_NUM_GROUPS; i++)
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pr_info("SMEM_GPIO_INT: %d: f %d: %d %d...\n",
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i, gpio->num_fired[i], gpio->fired[i][0],
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gpio->fired[i][1]);
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}
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#else
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#endif
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spin_unlock_irqrestore(&smem_lock, flags);
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}
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