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-rw-r--r--arch/arm/mach-msm/Makefile2
-rw-r--r--arch/arm/mach-msm/smd.c425
-rw-r--r--arch/arm/mach-msm/smd_debug.c310
-rw-r--r--arch/arm/mach-msm/smd_private.h101
4 files changed, 433 insertions, 405 deletions
diff --git a/arch/arm/mach-msm/Makefile b/arch/arm/mach-msm/Makefile
index d23fd0bf9fc..9c3c4019da8 100644
--- a/arch/arm/mach-msm/Makefile
+++ b/arch/arm/mach-msm/Makefile
@@ -5,7 +5,7 @@ obj-y += vreg.o
obj-y += acpuclock-arm11.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_HALIBUT) += board-halibut.o
diff --git a/arch/arm/mach-msm/smd.c b/arch/arm/mach-msm/smd.c
index b5f8957725d..1aaee4d7086 100644
--- a/arch/arm/mach-msm/smd.c
+++ b/arch/arm/mach-msm/smd.c
@@ -46,8 +46,7 @@ enum {
static int msm_smd_debug_mask;
-struct shared_info
-{
+struct shared_info {
int ready;
unsigned state;
};
@@ -61,8 +60,7 @@ static struct shared_info smd_info = {
module_param_named(debug_mask, msm_smd_debug_mask,
int, S_IRUGO | S_IWUSR | S_IWGRP);
-void *smem_find(unsigned id, unsigned size);
-static void *smem_item(unsigned id, unsigned *size);
+void *smem_item(unsigned id, unsigned *size);
static void smd_diag(void);
static unsigned last_heap_free = 0xffffffff;
@@ -126,114 +124,27 @@ static int check_for_modem_crash(void)
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
-** irq handler and code that mutates the channel
-** list or fiddles with channel state
-*/
-static DEFINE_SPINLOCK(smd_lock);
-static DEFINE_SPINLOCK(smem_lock);
+ * irq handler and code that mutates the channel
+ * list or fiddles with channel state
+ */
+DEFINE_SPINLOCK(smd_lock);
+DEFINE_SPINLOCK(smem_lock);
/* the mutex is used during open() and close()
-** operations to avoid races while creating or
-** destroying smd_channel structures
-*/
+ * operations to avoid races while creating or
+ * destroying smd_channel structures
+ */
static DEFINE_MUTEX(smd_creation_mutex);
static int smd_initialized;
-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)(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 */
+LIST_HEAD(smd_ch_closed_list);
+LIST_HEAD(smd_ch_list); /* todo: per-target lists */
static unsigned char smd_ch_allocated[64];
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_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 */
static int smd_stream_read_avail(struct smd_channel *ch)
{
@@ -345,9 +234,9 @@ static void ch_read_done(struct smd_channel *ch, unsigned count)
}
/* basic read interface to ch_read_{buffer,done} used
-** by smd_*_read() and update_packet_state()
-** will read-and-discard if the _data pointer is null
-*/
+ * by smd_*_read() and update_packet_state()
+ * will read-and-discard if the _data pointer is null
+ */
static int ch_read(struct smd_channel *ch, void *_data, int len)
{
void *ptr;
@@ -454,8 +343,7 @@ static void smd_state_change(struct smd_channel *ch,
{
ch->last_state = next;
- pr_info("SMD: ch %d %s -> %s\n", ch->n,
- chstate(last), chstate(next));
+ pr_info("SMD: ch %d %d -> %d\n", ch->n, last, next);
switch (next) {
case SMD_SS_OPENING:
@@ -936,7 +824,7 @@ void *smem_alloc(unsigned id, unsigned 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_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)
{
- struct msm_dem_slave_data *ptr = smem_alloc(SMEM_APPS_DEM_SLAVE_DATA,
- sizeof(*ptr));
+ struct msm_dem_slave_data *ptr;
+
+ ptr = smem_find(SMEM_APPS_DEM_SLAVE_DATA, sizeof(*ptr));
if (ptr == NULL) {
pr_err("smsm_set_sleep_duration <SM NO APPS_DEM_SLAVE_DATA>\n");
return -EIO;
@@ -1061,7 +950,7 @@ int smsm_set_sleep_duration(uint32_t delay)
{
uint32_t *ptr;
- ptr = smem_alloc(SMEM_SMSM_SLEEP_DELAY, sizeof(*ptr));
+ ptr = smem_find(SMEM_SMSM_SLEEP_DELAY, sizeof(*ptr));
if (ptr == NULL) {
pr_err("smsm_set_sleep_duration <SM NO SLEEP_DELAY>\n");
return -EIO;
@@ -1075,76 +964,6 @@ int smsm_set_sleep_duration(uint32_t delay)
#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 r;
@@ -1196,207 +1015,6 @@ int smd_core_init(void)
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)
{
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;
- smd_debugfs_init();
smd_initialized = 1;
return 0;
diff --git a/arch/arm/mach-msm/smd_debug.c b/arch/arm/mach-msm/smd_debug.c
new file mode 100644
index 00000000000..3bb40a7fa28
--- /dev/null
+++ b/arch/arm/mach-msm/smd_debug.c
@@ -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);
+}
+
diff --git a/arch/arm/mach-msm/smd_private.h b/arch/arm/mach-msm/smd_private.h
index 71f9612d5f5..13d7c9d31a9 100644
--- a/arch/arm/mach-msm/smd_private.h
+++ b/arch/arm/mach-msm/smd_private.h
@@ -16,6 +16,10 @@
#ifndef _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
{
unsigned initialized;
@@ -232,4 +236,101 @@ typedef enum
SMEM_NUM_ITEMS,
} 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
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2024-11-15 09:12:58 +0000