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[ARM] msm: cleanup smd, separate debugfs support

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- pull debug code into smd_debug.c
- move necessary structures and defines into smd_private.h
- fix some comment formatting, etc

Signed-off-by: Brian Swetland <swetland@google.com>
Signed-off-by: Daniel Walker <dwalker@codeaurora.org>
This commit is contained in:
Brian Swetland
2009-07-01 17:58:37 -07:00
committed by Daniel Walker
parent ec9d3d14ff
commit 03e00cd350
4 changed files with 433 additions and 405 deletions
Download Patch File Download Diff File Expand all files Collapse all files

2
arch/arm/mach-msm/Makefile
View File

@@ -5,7 +5,7 @@ obj-y += vreg.o
obj-y += acpuclock-arm11.o obj-y += acpuclock-arm11.o
obj-y += clock.o clock-7x01a.o obj-y += clock.o clock-7x01a.o
obj-$(CONFIG_MSM_SMD) += smd.o obj-$(CONFIG_MSM_SMD) += smd.o smd_debug.o
obj-$(CONFIG_MACH_TROUT) += board-trout.o obj-$(CONFIG_MACH_TROUT) += board-trout.o
obj-$(CONFIG_MACH_HALIBUT) += board-halibut.o obj-$(CONFIG_MACH_HALIBUT) += board-halibut.o

419
arch/arm/mach-msm/smd.c
View File

@@ -46,8 +46,7 @@ enum {
static int msm_smd_debug_mask; static int msm_smd_debug_mask;
struct shared_info struct shared_info {
{
int ready; int ready;
unsigned state; unsigned state;
}; };
@@ -61,8 +60,7 @@ static struct shared_info smd_info = {
module_param_named(debug_mask, msm_smd_debug_mask, module_param_named(debug_mask, msm_smd_debug_mask,
int, S_IRUGO | S_IWUSR | S_IWGRP); int, S_IRUGO | S_IWUSR | S_IWGRP);
void *smem_find(unsigned id, unsigned size); void *smem_item(unsigned id, unsigned *size);
static void *smem_item(unsigned id, unsigned *size);
static void smd_diag(void); static void smd_diag(void);
static unsigned last_heap_free = 0xffffffff; static unsigned last_heap_free = 0xffffffff;
@@ -126,114 +124,27 @@ static int check_for_modem_crash(void)
return 0; return 0;
} }
#define SMD_SS_CLOSED 0x00000000
#define SMD_SS_OPENING 0x00000001
#define SMD_SS_OPENED 0x00000002
#define SMD_SS_FLUSHING 0x00000003
#define SMD_SS_CLOSING 0x00000004
#define SMD_SS_RESET 0x00000005
#define SMD_SS_RESET_OPENING 0x00000006
#define SMD_BUF_SIZE 8192
#define SMD_CHANNELS 64
#define SMD_HEADER_SIZE 20
/* the spinlock is used to synchronize between the /* the spinlock is used to synchronize between the
** irq handler and code that mutates the channel * irq handler and code that mutates the channel
** list or fiddles with channel state * list or fiddles with channel state
*/ */
static DEFINE_SPINLOCK(smd_lock); DEFINE_SPINLOCK(smd_lock);
static DEFINE_SPINLOCK(smem_lock); DEFINE_SPINLOCK(smem_lock);
/* the mutex is used during open() and close() /* the mutex is used during open() and close()
** operations to avoid races while creating or * operations to avoid races while creating or
** destroying smd_channel structures * destroying smd_channel structures
*/ */
static DEFINE_MUTEX(smd_creation_mutex); static DEFINE_MUTEX(smd_creation_mutex);
static int smd_initialized; static int smd_initialized;
struct smd_alloc_elm { LIST_HEAD(smd_ch_closed_list);
char name[20]; LIST_HEAD(smd_ch_list); /* todo: per-target lists */
uint32_t cid;
uint32_t ctype;
uint32_t ref_count;
};
struct smd_half_channel {
unsigned state;
unsigned char fDSR;
unsigned char fCTS;
unsigned char fCD;
unsigned char fRI;
unsigned char fHEAD;
unsigned char fTAIL;
unsigned char fSTATE;
unsigned char fUNUSED;
unsigned tail;
unsigned head;
} __attribute__((packed));
struct smd_shared_v1 {
struct smd_half_channel ch0;
unsigned char data0[SMD_BUF_SIZE];
struct smd_half_channel ch1;
unsigned char data1[SMD_BUF_SIZE];
};
struct smd_shared_v2 {
struct smd_half_channel ch0;
struct smd_half_channel ch1;
};
struct smd_channel {
volatile struct smd_half_channel *send;
volatile struct smd_half_channel *recv;
unsigned char *send_data;
unsigned char *recv_data;
unsigned fifo_mask;
unsigned fifo_size;
unsigned current_packet;
unsigned n;
struct list_head ch_list;
void *priv;
void (*notify)(void *priv, unsigned flags);
int (*read)(smd_channel_t *ch, void *data, int len);
int (*write)(smd_channel_t *ch, const void *data, int len);
int (*read_avail)(smd_channel_t *ch);
int (*write_avail)(smd_channel_t *ch);
void (*update_state)(smd_channel_t *ch);
unsigned last_state;
void (*notify_other_cpu)(void);
unsigned type;
char name[32];
struct platform_device pdev;
};
static LIST_HEAD(smd_ch_closed_list);
static LIST_HEAD(smd_ch_list); /* todo: per-target lists */
static unsigned char smd_ch_allocated[64]; static unsigned char smd_ch_allocated[64];
static struct work_struct probe_work; static struct work_struct probe_work;
#define SMD_TYPE_MASK 0x0FF
#define SMD_TYPE_APPS_MODEM 0x000
#define SMD_TYPE_APPS_DSP 0x001
#define SMD_TYPE_MODEM_DSP 0x002
#define SMD_KIND_MASK 0xF00
#define SMD_KIND_UNKNOWN 0x000
#define SMD_KIND_STREAM 0x100
#define SMD_KIND_PACKET 0x200
static void smd_alloc_channel(const char *name, uint32_t cid, uint32_t type); static void smd_alloc_channel(const char *name, uint32_t cid, uint32_t type);
static void smd_channel_probe_worker(struct work_struct *work) static void smd_channel_probe_worker(struct work_struct *work)
@@ -264,28 +175,6 @@ static void smd_channel_probe_worker(struct work_struct *work)
} }
} }
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";
}
}
/* how many bytes are available for reading */ /* how many bytes are available for reading */
static int smd_stream_read_avail(struct smd_channel *ch) static int smd_stream_read_avail(struct smd_channel *ch)
{ {
@@ -345,8 +234,8 @@ static void ch_read_done(struct smd_channel *ch, unsigned count)
} }
/* basic read interface to ch_read_{buffer,done} used /* basic read interface to ch_read_{buffer,done} used
** by smd_*_read() and update_packet_state() * by smd_*_read() and update_packet_state()
** will read-and-discard if the _data pointer is null * will read-and-discard if the _data pointer is null
*/ */
static int ch_read(struct smd_channel *ch, void *_data, int len) static int ch_read(struct smd_channel *ch, void *_data, int len)
{ {
@@ -454,8 +343,7 @@ static void smd_state_change(struct smd_channel *ch,
{ {
ch->last_state = next; ch->last_state = next;
pr_info("SMD: ch %d %s -> %s\n", ch->n, pr_info("SMD: ch %d %d -> %d\n", ch->n, last, next);
chstate(last), chstate(next));
switch (next) { switch (next) {
case SMD_SS_OPENING: case SMD_SS_OPENING:
@@ -936,7 +824,7 @@ void *smem_alloc(unsigned id, unsigned size)
return smem_find(id, size); return smem_find(id, size);
} }
static void *smem_item(unsigned id, unsigned *size) void *smem_item(unsigned id, unsigned *size)
{ {
struct smem_shared *shared = (void *) MSM_SHARED_RAM_BASE; struct smem_shared *shared = (void *) MSM_SHARED_RAM_BASE;
struct smem_heap_entry *toc = shared->heap_toc; struct smem_heap_entry *toc = shared->heap_toc;
@@ -1042,8 +930,9 @@ uint32_t smsm_get_state(enum smsm_state_item item)
int smsm_set_sleep_duration(uint32_t delay) int smsm_set_sleep_duration(uint32_t delay)
{ {
struct msm_dem_slave_data *ptr = smem_alloc(SMEM_APPS_DEM_SLAVE_DATA, struct msm_dem_slave_data *ptr;
sizeof(*ptr));
ptr = smem_find(SMEM_APPS_DEM_SLAVE_DATA, sizeof(*ptr));
if (ptr == NULL) { if (ptr == NULL) {
pr_err("smsm_set_sleep_duration <SM NO APPS_DEM_SLAVE_DATA>\n"); pr_err("smsm_set_sleep_duration <SM NO APPS_DEM_SLAVE_DATA>\n");
return -EIO; return -EIO;
@@ -1061,7 +950,7 @@ int smsm_set_sleep_duration(uint32_t delay)
{ {
uint32_t *ptr; uint32_t *ptr;
ptr = smem_alloc(SMEM_SMSM_SLEEP_DELAY, sizeof(*ptr)); ptr = smem_find(SMEM_SMSM_SLEEP_DELAY, sizeof(*ptr));
if (ptr == NULL) { if (ptr == NULL) {
pr_err("smsm_set_sleep_duration <SM NO SLEEP_DELAY>\n"); pr_err("smsm_set_sleep_duration <SM NO SLEEP_DELAY>\n");
return -EIO; return -EIO;
@@ -1075,76 +964,6 @@ int smsm_set_sleep_duration(uint32_t delay)
#endif #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);
}
int smd_core_init(void) int smd_core_init(void)
{ {
int r; int r;
@@ -1196,207 +1015,6 @@ int smd_core_init(void)
return 0; return 0;
} }
#if defined(CONFIG_DEBUG_FS)
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\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'
);
}
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, 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;
}
static int debug_boom(char *buf, int max)
{
unsigned ms = 5000;
msm_proc_comm(PCOM_RESET_MODEM, &ms, 0);
return 0;
}
#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 void smd_debugfs_init(void)
{
struct dentry *dent;
dent = debugfs_create_dir("smd", 0);
if (IS_ERR(dent))
return;
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);
debug_create("boom", 0444, dent, debug_boom);
}
#else
static void smd_debugfs_init(void) {}
#endif
static int __init msm_smd_probe(struct platform_device *pdev) static int __init msm_smd_probe(struct platform_device *pdev)
{ {
pr_info("smd_init()\n"); pr_info("smd_init()\n");
@@ -1412,7 +1030,6 @@ static int __init msm_smd_probe(struct platform_device *pdev)
msm_check_for_modem_crash = check_for_modem_crash; msm_check_for_modem_crash = check_for_modem_crash;
smd_debugfs_init();
smd_initialized = 1; smd_initialized = 1;
return 0; return 0;

310
arch/arm/mach-msm/smd_debug.c Normal file
View File

@@ -0,0 +1,310 @@
/* 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\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'
);
}
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, 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 void smd_debugfs_init(void)
{
struct dentry *dent;
dent = debugfs_create_dir("smd", 0);
if (IS_ERR(dent))
return;
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);
}
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);
}

101
arch/arm/mach-msm/smd_private.h
View File

@@ -16,6 +16,10 @@
#ifndef _ARCH_ARM_MACH_MSM_MSM_SMD_PRIVATE_H_ #ifndef _ARCH_ARM_MACH_MSM_MSM_SMD_PRIVATE_H_
#define _ARCH_ARM_MACH_MSM_MSM_SMD_PRIVATE_H_ #define _ARCH_ARM_MACH_MSM_MSM_SMD_PRIVATE_H_
#include <linux/platform_device.h>
#include <linux/spinlock.h>
#include <linux/list.h>
struct smem_heap_info struct smem_heap_info
{ {
unsigned initialized; unsigned initialized;
@@ -232,4 +236,101 @@ typedef enum
SMEM_NUM_ITEMS, SMEM_NUM_ITEMS,
} smem_mem_type; } smem_mem_type;
#define SMD_SS_CLOSED 0x00000000
#define SMD_SS_OPENING 0x00000001
#define SMD_SS_OPENED 0x00000002
#define SMD_SS_FLUSHING 0x00000003
#define SMD_SS_CLOSING 0x00000004
#define SMD_SS_RESET 0x00000005
#define SMD_SS_RESET_OPENING 0x00000006
#define SMD_BUF_SIZE 8192
#define SMD_CHANNELS 64
#define SMD_HEADER_SIZE 20
struct smd_alloc_elm {
char name[20];
uint32_t cid;
uint32_t ctype;
uint32_t ref_count;
};
struct smd_half_channel {
unsigned state;
unsigned char fDSR;
unsigned char fCTS;
unsigned char fCD;
unsigned char fRI;
unsigned char fHEAD;
unsigned char fTAIL;
unsigned char fSTATE;
unsigned char fUNUSED;
unsigned tail;
unsigned head;
} __attribute__((packed));
struct smd_shared_v1 {
struct smd_half_channel ch0;
unsigned char data0[SMD_BUF_SIZE];
struct smd_half_channel ch1;
unsigned char data1[SMD_BUF_SIZE];
};
struct smd_shared_v2 {
struct smd_half_channel ch0;
struct smd_half_channel ch1;
};
struct smd_channel {
volatile struct smd_half_channel *send;
volatile struct smd_half_channel *recv;
unsigned char *send_data;
unsigned char *recv_data;
unsigned fifo_mask;
unsigned fifo_size;
unsigned current_packet;
unsigned n;
struct list_head ch_list;
void *priv;
void (*notify)(void *priv, unsigned flags);
int (*read)(struct smd_channel *ch, void *data, int len);
int (*write)(struct smd_channel *ch, const void *data, int len);
int (*read_avail)(struct smd_channel *ch);
int (*write_avail)(struct smd_channel *ch);
void (*update_state)(struct smd_channel *ch);
unsigned last_state;
void (*notify_other_cpu)(void);
unsigned type;
char name[32];
struct platform_device pdev;
};
#define SMD_TYPE_MASK 0x0FF
#define SMD_TYPE_APPS_MODEM 0x000
#define SMD_TYPE_APPS_DSP 0x001
#define SMD_TYPE_MODEM_DSP 0x002
#define SMD_KIND_MASK 0xF00
#define SMD_KIND_UNKNOWN 0x000
#define SMD_KIND_STREAM 0x100
#define SMD_KIND_PACKET 0x200
extern struct list_head smd_ch_closed_list;
extern struct list_head smd_ch_list;
extern spinlock_t smd_lock;
extern spinlock_t smem_lock;
void *smem_find(unsigned id, unsigned size);
void *smem_item(unsigned id, unsigned *size);
uint32_t raw_smsm_get_state(enum smsm_state_item item);
#endif #endif