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path: root/drivers/char/ipmi/ipmi_bt_sm.c
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Diffstat (limited to 'drivers/char/ipmi/ipmi_bt_sm.c')
-rw-r--r--drivers/char/ipmi/ipmi_bt_sm.c69
1 files changed, 44 insertions, 25 deletions
diff --git a/drivers/char/ipmi/ipmi_bt_sm.c b/drivers/char/ipmi/ipmi_bt_sm.c
index 5ce9c6269033..33862670e285 100644
--- a/drivers/char/ipmi/ipmi_bt_sm.c
+++ b/drivers/char/ipmi/ipmi_bt_sm.c
@@ -31,8 +31,6 @@
#include <linux/ipmi_msgdefs.h> /* for completion codes */
#include "ipmi_si_sm.h"
-#define IPMI_BT_VERSION "v33"
-
static int bt_debug = 0x00; /* Production value 0, see following flags */
#define BT_DEBUG_ENABLE 1
@@ -163,7 +161,8 @@ static int bt_start_transaction(struct si_sm_data *bt,
{
unsigned int i;
- if ((size < 2) || (size > IPMI_MAX_MSG_LENGTH)) return -1;
+ if ((size < 2) || (size > IPMI_MAX_MSG_LENGTH))
+ return -1;
if ((bt->state != BT_STATE_IDLE) && (bt->state != BT_STATE_HOSED))
return -2;
@@ -171,7 +170,8 @@ static int bt_start_transaction(struct si_sm_data *bt,
if (bt_debug & BT_DEBUG_MSG) {
printk(KERN_WARNING "+++++++++++++++++++++++++++++++++++++\n");
printk(KERN_WARNING "BT: write seq=0x%02X:", bt->seq);
- for (i = 0; i < size; i ++) printk (" %02x", data[i]);
+ for (i = 0; i < size; i ++)
+ printk (" %02x", data[i]);
printk("\n");
}
bt->write_data[0] = size + 1; /* all data plus seq byte */
@@ -210,15 +210,18 @@ static int bt_get_result(struct si_sm_data *bt,
} else {
data[0] = bt->read_data[1];
data[1] = bt->read_data[3];
- if (length < msg_len) bt->truncated = 1;
+ if (length < msg_len)
+ bt->truncated = 1;
if (bt->truncated) { /* can be set in read_all_bytes() */
data[2] = IPMI_ERR_MSG_TRUNCATED;
msg_len = 3;
- } else memcpy(data + 2, bt->read_data + 4, msg_len - 2);
+ } else
+ memcpy(data + 2, bt->read_data + 4, msg_len - 2);
if (bt_debug & BT_DEBUG_MSG) {
printk (KERN_WARNING "BT: res (raw)");
- for (i = 0; i < msg_len; i++) printk(" %02x", data[i]);
+ for (i = 0; i < msg_len; i++)
+ printk(" %02x", data[i]);
printk ("\n");
}
}
@@ -231,8 +234,10 @@ static int bt_get_result(struct si_sm_data *bt,
static void reset_flags(struct si_sm_data *bt)
{
- if (BT_STATUS & BT_H_BUSY) BT_CONTROL(BT_H_BUSY);
- if (BT_STATUS & BT_B_BUSY) BT_CONTROL(BT_B_BUSY);
+ if (BT_STATUS & BT_H_BUSY)
+ BT_CONTROL(BT_H_BUSY);
+ if (BT_STATUS & BT_B_BUSY)
+ BT_CONTROL(BT_B_BUSY);
BT_CONTROL(BT_CLR_WR_PTR);
BT_CONTROL(BT_SMS_ATN);
#ifdef DEVELOPMENT_ONLY_NOT_FOR_PRODUCTION
@@ -241,7 +246,8 @@ static void reset_flags(struct si_sm_data *bt)
BT_CONTROL(BT_H_BUSY);
BT_CONTROL(BT_B2H_ATN);
BT_CONTROL(BT_CLR_RD_PTR);
- for (i = 0; i < IPMI_MAX_MSG_LENGTH + 2; i++) BMC2HOST;
+ for (i = 0; i < IPMI_MAX_MSG_LENGTH + 2; i++)
+ BMC2HOST;
BT_CONTROL(BT_H_BUSY);
}
#endif
@@ -258,7 +264,8 @@ static inline void write_all_bytes(struct si_sm_data *bt)
printk (" %02x", bt->write_data[i]);
printk ("\n");
}
- for (i = 0; i < bt->write_count; i++) HOST2BMC(bt->write_data[i]);
+ for (i = 0; i < bt->write_count; i++)
+ HOST2BMC(bt->write_data[i]);
}
static inline int read_all_bytes(struct si_sm_data *bt)
@@ -278,7 +285,8 @@ static inline int read_all_bytes(struct si_sm_data *bt)
bt->truncated = 1;
return 1; /* let next XACTION START clean it up */
}
- for (i = 1; i <= bt->read_count; i++) bt->read_data[i] = BMC2HOST;
+ for (i = 1; i <= bt->read_count; i++)
+ bt->read_data[i] = BMC2HOST;
bt->read_count++; /* account for the length byte */
if (bt_debug & BT_DEBUG_MSG) {
@@ -295,7 +303,8 @@ static inline int read_all_bytes(struct si_sm_data *bt)
((bt->read_data[1] & 0xF8) == (bt->write_data[1] & 0xF8)))
return 1;
- if (bt_debug & BT_DEBUG_MSG) printk(KERN_WARNING "BT: bad packet: "
+ if (bt_debug & BT_DEBUG_MSG)
+ printk(KERN_WARNING "BT: bad packet: "
"want 0x(%02X, %02X, %02X) got (%02X, %02X, %02X)\n",
bt->write_data[1], bt->write_data[2], bt->write_data[3],
bt->read_data[1], bt->read_data[2], bt->read_data[3]);
@@ -359,7 +368,8 @@ static enum si_sm_result bt_event(struct si_sm_data *bt, long time)
time);
bt->last_state = bt->state;
- if (bt->state == BT_STATE_HOSED) return SI_SM_HOSED;
+ if (bt->state == BT_STATE_HOSED)
+ return SI_SM_HOSED;
if (bt->state != BT_STATE_IDLE) { /* do timeout test */
@@ -371,7 +381,8 @@ static enum si_sm_result bt_event(struct si_sm_data *bt, long time)
/* FIXME: bt_event is sometimes called with time > BT_NORMAL_TIMEOUT
(noticed in ipmi_smic_sm.c January 2004) */
- if ((time <= 0) || (time >= BT_NORMAL_TIMEOUT)) time = 100;
+ if ((time <= 0) || (time >= BT_NORMAL_TIMEOUT))
+ time = 100;
bt->timeout -= time;
if ((bt->timeout < 0) && (bt->state < BT_STATE_RESET1)) {
error_recovery(bt, "timed out");
@@ -393,12 +404,14 @@ static enum si_sm_result bt_event(struct si_sm_data *bt, long time)
BT_CONTROL(BT_H_BUSY);
break;
}
- if (status & BT_B2H_ATN) break;
+ if (status & BT_B2H_ATN)
+ break;
bt->state = BT_STATE_WRITE_BYTES;
return SI_SM_CALL_WITHOUT_DELAY; /* for logging */
case BT_STATE_WRITE_BYTES:
- if (status & (BT_B_BUSY | BT_H2B_ATN)) break;
+ if (status & (BT_B_BUSY | BT_H2B_ATN))
+ break;
BT_CONTROL(BT_CLR_WR_PTR);
write_all_bytes(bt);
BT_CONTROL(BT_H2B_ATN); /* clears too fast to catch? */
@@ -406,7 +419,8 @@ static enum si_sm_result bt_event(struct si_sm_data *bt, long time)
return SI_SM_CALL_WITHOUT_DELAY; /* it MIGHT sail through */
case BT_STATE_WRITE_CONSUME: /* BMCs usually blow right thru here */
- if (status & (BT_H2B_ATN | BT_B_BUSY)) break;
+ if (status & (BT_H2B_ATN | BT_B_BUSY))
+ break;
bt->state = BT_STATE_B2H_WAIT;
/* fall through with status */
@@ -415,15 +429,18 @@ static enum si_sm_result bt_event(struct si_sm_data *bt, long time)
generation of B2H_ATN so ALWAYS return CALL_WITH_DELAY. */
case BT_STATE_B2H_WAIT:
- if (!(status & BT_B2H_ATN)) break;
+ if (!(status & BT_B2H_ATN))
+ break;
/* Assume ordered, uncached writes: no need to wait */
- if (!(status & BT_H_BUSY)) BT_CONTROL(BT_H_BUSY); /* set */
+ if (!(status & BT_H_BUSY))
+ BT_CONTROL(BT_H_BUSY); /* set */
BT_CONTROL(BT_B2H_ATN); /* clear it, ACK to the BMC */
BT_CONTROL(BT_CLR_RD_PTR); /* reset the queue */
i = read_all_bytes(bt);
BT_CONTROL(BT_H_BUSY); /* clear */
- if (!i) break; /* Try this state again */
+ if (!i) /* Try this state again */
+ break;
bt->state = BT_STATE_READ_END;
return SI_SM_CALL_WITHOUT_DELAY; /* for logging */
@@ -436,7 +453,8 @@ static enum si_sm_result bt_event(struct si_sm_data *bt, long time)
#ifdef MAKE_THIS_TRUE_IF_NECESSARY
- if (status & BT_H_BUSY) break;
+ if (status & BT_H_BUSY)
+ break;
#endif
bt->seq++;
bt->state = BT_STATE_IDLE;
@@ -459,7 +477,8 @@ static enum si_sm_result bt_event(struct si_sm_data *bt, long time)
break;
case BT_STATE_RESET3:
- if (bt->timeout > 0) return SI_SM_CALL_WITH_DELAY;
+ if (bt->timeout > 0)
+ return SI_SM_CALL_WITH_DELAY;
bt->state = BT_STATE_RESTART; /* printk in debug modes */
break;
@@ -485,7 +504,8 @@ static int bt_detect(struct si_sm_data *bt)
but that's what you get from reading a bogus address, so we
test that first. The calling routine uses negative logic. */
- if ((BT_STATUS == 0xFF) && (BT_INTMASK_R == 0xFF)) return 1;
+ if ((BT_STATUS == 0xFF) && (BT_INTMASK_R == 0xFF))
+ return 1;
reset_flags(bt);
return 0;
}
@@ -501,7 +521,6 @@ static int bt_size(void)
struct si_sm_handlers bt_smi_handlers =
{
- .version = IPMI_BT_VERSION,
.init_data = bt_init_data,
.start_transaction = bt_start_transaction,
.get_result = bt_get_result,
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.