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path: root/drivers/char/ipmi/ipmi_smic_sm.c
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Diffstat (limited to 'drivers/char/ipmi/ipmi_smic_sm.c')
-rw-r--r--drivers/char/ipmi/ipmi_smic_sm.c149
1 files changed, 71 insertions, 78 deletions
diff --git a/drivers/char/ipmi/ipmi_smic_sm.c b/drivers/char/ipmi/ipmi_smic_sm.c
index e64ea7d25d2..faed9297190 100644
--- a/drivers/char/ipmi/ipmi_smic_sm.c
+++ b/drivers/char/ipmi/ipmi_smic_sm.c
@@ -85,6 +85,7 @@ enum smic_states {
/* SMIC Flags Register Bits */
#define SMIC_RX_DATA_READY 0x80
#define SMIC_TX_DATA_READY 0x40
+
/*
* SMIC_SMI and SMIC_EVM_DATA_AVAIL are only used by
* a few systems, and then only by Systems Management
@@ -104,23 +105,22 @@ enum smic_states {
#define EC_ILLEGAL_COMMAND 0x04
#define EC_BUFFER_FULL 0x05
-struct si_sm_data
-{
+struct si_sm_data {
enum smic_states state;
struct si_sm_io *io;
- unsigned char write_data[MAX_SMIC_WRITE_SIZE];
- int write_pos;
- int write_count;
- int orig_write_count;
- unsigned char read_data[MAX_SMIC_READ_SIZE];
- int read_pos;
- int truncated;
- unsigned int error_retries;
- long smic_timeout;
+ unsigned char write_data[MAX_SMIC_WRITE_SIZE];
+ int write_pos;
+ int write_count;
+ int orig_write_count;
+ unsigned char read_data[MAX_SMIC_READ_SIZE];
+ int read_pos;
+ int truncated;
+ unsigned int error_retries;
+ long smic_timeout;
};
-static unsigned int init_smic_data (struct si_sm_data *smic,
- struct si_sm_io *io)
+static unsigned int init_smic_data(struct si_sm_data *smic,
+ struct si_sm_io *io)
{
smic->state = SMIC_IDLE;
smic->io = io;
@@ -150,11 +150,10 @@ static int start_smic_transaction(struct si_sm_data *smic,
return IPMI_NOT_IN_MY_STATE_ERR;
if (smic_debug & SMIC_DEBUG_MSG) {
- printk(KERN_INFO "start_smic_transaction -");
- for (i = 0; i < size; i ++) {
- printk (" %02x", (unsigned char) (data [i]));
- }
- printk ("\n");
+ printk(KERN_DEBUG "start_smic_transaction -");
+ for (i = 0; i < size; i++)
+ printk(" %02x", (unsigned char) data[i]);
+ printk("\n");
}
smic->error_retries = 0;
memcpy(smic->write_data, data, size);
@@ -173,11 +172,10 @@ static int smic_get_result(struct si_sm_data *smic,
int i;
if (smic_debug & SMIC_DEBUG_MSG) {
- printk (KERN_INFO "smic_get result -");
- for (i = 0; i < smic->read_pos; i ++) {
- printk (" %02x", (smic->read_data [i]));
- }
- printk ("\n");
+ printk(KERN_DEBUG "smic_get result -");
+ for (i = 0; i < smic->read_pos; i++)
+ printk(" %02x", smic->read_data[i]);
+ printk("\n");
}
if (length < smic->read_pos) {
smic->read_pos = length;
@@ -223,8 +221,8 @@ static inline void write_smic_control(struct si_sm_data *smic,
smic->io->outputb(smic->io, 1, control);
}
-static inline void write_si_sm_data (struct si_sm_data *smic,
- unsigned char data)
+static inline void write_si_sm_data(struct si_sm_data *smic,
+ unsigned char data)
{
smic->io->outputb(smic->io, 0, data);
}
@@ -233,10 +231,9 @@ static inline void start_error_recovery(struct si_sm_data *smic, char *reason)
{
(smic->error_retries)++;
if (smic->error_retries > SMIC_MAX_ERROR_RETRIES) {
- if (smic_debug & SMIC_DEBUG_ENABLE) {
+ if (smic_debug & SMIC_DEBUG_ENABLE)
printk(KERN_WARNING
"ipmi_smic_drv: smic hosed: %s\n", reason);
- }
smic->state = SMIC_HOSED;
} else {
smic->write_count = smic->orig_write_count;
@@ -254,14 +251,14 @@ static inline void write_next_byte(struct si_sm_data *smic)
(smic->write_count)--;
}
-static inline void read_next_byte (struct si_sm_data *smic)
+static inline void read_next_byte(struct si_sm_data *smic)
{
if (smic->read_pos >= MAX_SMIC_READ_SIZE) {
- read_smic_data (smic);
+ read_smic_data(smic);
smic->truncated = 1;
} else {
smic->read_data[smic->read_pos] = read_smic_data(smic);
- (smic->read_pos)++;
+ smic->read_pos++;
}
}
@@ -336,7 +333,7 @@ static inline void read_next_byte (struct si_sm_data *smic)
SMIC_SC_SMS_RD_END 0xC6
*/
-static enum si_sm_result smic_event (struct si_sm_data *smic, long time)
+static enum si_sm_result smic_event(struct si_sm_data *smic, long time)
{
unsigned char status;
unsigned char flags;
@@ -347,13 +344,15 @@ static enum si_sm_result smic_event (struct si_sm_data *smic, long time)
return SI_SM_HOSED;
}
if (smic->state != SMIC_IDLE) {
- if (smic_debug & SMIC_DEBUG_STATES) {
- printk(KERN_INFO
+ if (smic_debug & SMIC_DEBUG_STATES)
+ printk(KERN_DEBUG
"smic_event - smic->smic_timeout = %ld,"
" time = %ld\n",
smic->smic_timeout, time);
- }
-/* FIXME: smic_event is sometimes called with time > SMIC_RETRY_TIMEOUT */
+ /*
+ * FIXME: smic_event is sometimes called with time >
+ * SMIC_RETRY_TIMEOUT
+ */
if (time < SMIC_RETRY_TIMEOUT) {
smic->smic_timeout -= time;
if (smic->smic_timeout < 0) {
@@ -366,9 +365,9 @@ static enum si_sm_result smic_event (struct si_sm_data *smic, long time)
if (flags & SMIC_FLAG_BSY)
return SI_SM_CALL_WITH_DELAY;
- status = read_smic_status (smic);
+ status = read_smic_status(smic);
if (smic_debug & SMIC_DEBUG_STATES)
- printk(KERN_INFO
+ printk(KERN_DEBUG
"smic_event - state = %d, flags = 0x%02x,"
" status = 0x%02x\n",
smic->state, flags, status);
@@ -377,9 +376,7 @@ static enum si_sm_result smic_event (struct si_sm_data *smic, long time)
case SMIC_IDLE:
/* in IDLE we check for available messages */
if (flags & SMIC_SMS_DATA_AVAIL)
- {
return SI_SM_ATTN;
- }
return SI_SM_IDLE;
case SMIC_START_OP:
@@ -391,7 +388,7 @@ static enum si_sm_result smic_event (struct si_sm_data *smic, long time)
case SMIC_OP_OK:
if (status != SMIC_SC_SMS_READY) {
- /* this should not happen */
+ /* this should not happen */
start_error_recovery(smic,
"state = SMIC_OP_OK,"
" status != SMIC_SC_SMS_READY");
@@ -411,8 +408,10 @@ static enum si_sm_result smic_event (struct si_sm_data *smic, long time)
"status != SMIC_SC_SMS_WR_START");
return SI_SM_CALL_WITH_DELAY;
}
- /* we must not issue WR_(NEXT|END) unless
- TX_DATA_READY is set */
+ /*
+ * we must not issue WR_(NEXT|END) unless
+ * TX_DATA_READY is set
+ * */
if (flags & SMIC_TX_DATA_READY) {
if (smic->write_count == 1) {
/* last byte */
@@ -424,10 +423,8 @@ static enum si_sm_result smic_event (struct si_sm_data *smic, long time)
}
write_next_byte(smic);
write_smic_flags(smic, flags | SMIC_FLAG_BSY);
- }
- else {
+ } else
return SI_SM_CALL_WITH_DELAY;
- }
break;
case SMIC_WRITE_NEXT:
@@ -442,52 +439,48 @@ static enum si_sm_result smic_event (struct si_sm_data *smic, long time)
if (smic->write_count == 1) {
write_smic_control(smic, SMIC_CC_SMS_WR_END);
smic->state = SMIC_WRITE_END;
- }
- else {
+ } else {
write_smic_control(smic, SMIC_CC_SMS_WR_NEXT);
smic->state = SMIC_WRITE_NEXT;
}
write_next_byte(smic);
write_smic_flags(smic, flags | SMIC_FLAG_BSY);
- }
- else {
+ } else
return SI_SM_CALL_WITH_DELAY;
- }
break;
case SMIC_WRITE_END:
if (status != SMIC_SC_SMS_WR_END) {
- start_error_recovery (smic,
- "state = SMIC_WRITE_END, "
- "status != SMIC_SC_SMS_WR_END");
+ start_error_recovery(smic,
+ "state = SMIC_WRITE_END, "
+ "status != SMIC_SC_SMS_WR_END");
return SI_SM_CALL_WITH_DELAY;
}
/* data register holds an error code */
data = read_smic_data(smic);
if (data != 0) {
- if (smic_debug & SMIC_DEBUG_ENABLE) {
- printk(KERN_INFO
+ if (smic_debug & SMIC_DEBUG_ENABLE)
+ printk(KERN_DEBUG
"SMIC_WRITE_END: data = %02x\n", data);
- }
start_error_recovery(smic,
"state = SMIC_WRITE_END, "
"data != SUCCESS");
return SI_SM_CALL_WITH_DELAY;
- } else {
+ } else
smic->state = SMIC_WRITE2READ;
- }
break;
case SMIC_WRITE2READ:
- /* we must wait for RX_DATA_READY to be set before we
- can continue */
+ /*
+ * we must wait for RX_DATA_READY to be set before we
+ * can continue
+ */
if (flags & SMIC_RX_DATA_READY) {
write_smic_control(smic, SMIC_CC_SMS_RD_START);
write_smic_flags(smic, flags | SMIC_FLAG_BSY);
smic->state = SMIC_READ_START;
- } else {
+ } else
return SI_SM_CALL_WITH_DELAY;
- }
break;
case SMIC_READ_START:
@@ -502,15 +495,16 @@ static enum si_sm_result smic_event (struct si_sm_data *smic, long time)
write_smic_control(smic, SMIC_CC_SMS_RD_NEXT);
write_smic_flags(smic, flags | SMIC_FLAG_BSY);
smic->state = SMIC_READ_NEXT;
- } else {
+ } else
return SI_SM_CALL_WITH_DELAY;
- }
break;
case SMIC_READ_NEXT:
switch (status) {
- /* smic tells us that this is the last byte to be read
- --> clean up */
+ /*
+ * smic tells us that this is the last byte to be read
+ * --> clean up
+ */
case SMIC_SC_SMS_RD_END:
read_next_byte(smic);
write_smic_control(smic, SMIC_CC_SMS_RD_END);
@@ -523,9 +517,8 @@ static enum si_sm_result smic_event (struct si_sm_data *smic, long time)
write_smic_control(smic, SMIC_CC_SMS_RD_NEXT);
write_smic_flags(smic, flags | SMIC_FLAG_BSY);
smic->state = SMIC_READ_NEXT;
- } else {
+ } else
return SI_SM_CALL_WITH_DELAY;
- }
break;
default:
start_error_recovery(
@@ -546,10 +539,9 @@ static enum si_sm_result smic_event (struct si_sm_data *smic, long time)
data = read_smic_data(smic);
/* data register holds an error code */
if (data != 0) {
- if (smic_debug & SMIC_DEBUG_ENABLE) {
- printk(KERN_INFO
+ if (smic_debug & SMIC_DEBUG_ENABLE)
+ printk(KERN_DEBUG
"SMIC_READ_END: data = %02x\n", data);
- }
start_error_recovery(smic,
"state = SMIC_READ_END, "
"data != SUCCESS");
@@ -565,7 +557,7 @@ static enum si_sm_result smic_event (struct si_sm_data *smic, long time)
default:
if (smic_debug & SMIC_DEBUG_ENABLE) {
- printk(KERN_WARNING "smic->state = %d\n", smic->state);
+ printk(KERN_DEBUG "smic->state = %d\n", smic->state);
start_error_recovery(smic, "state = UNKNOWN");
return SI_SM_CALL_WITH_DELAY;
}
@@ -576,10 +568,12 @@ static enum si_sm_result smic_event (struct si_sm_data *smic, long time)
static int smic_detect(struct si_sm_data *smic)
{
- /* It's impossible for the SMIC fnags register to be all 1's,
- (assuming a properly functioning, self-initialized BMC)
- but that's what you get from reading a bogus address, so we
- test that first. */
+ /*
+ * It's impossible for the SMIC fnags register to be all 1's,
+ * (assuming a properly functioning, self-initialized BMC)
+ * but that's what you get from reading a bogus address, so we
+ * test that first.
+ */
if (read_smic_flags(smic) == 0xff)
return 1;
@@ -595,8 +589,7 @@ static int smic_size(void)
return sizeof(struct si_sm_data);
}
-struct si_sm_handlers smic_smi_handlers =
-{
+struct si_sm_handlers smic_smi_handlers = {
.init_data = init_smic_data,
.start_transaction = start_smic_transaction,
.get_result = smic_get_result,
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2024-12-25 09:33:42 +0000