X-Git-Url: http://pilppa.org/gitweb/gitweb.cgi?a=blobdiff_plain;f=drivers%2Fchar%2Fipmi%2Fipmi_smic_sm.c;h=faed92971907212c24f2765b6d2f633fb0a5719a;hb=fd6149d332973bafa50f03ddb0ea9513e67f4517;hp=39d7e5ef1a2ba82ff6d9b3526f397b0e2184a550;hpb=eedb9f09e92598c165de37a8c210434d270ca3a6;p=linux-2.6-omap-h63xx.git diff --git a/drivers/char/ipmi/ipmi_smic_sm.c b/drivers/char/ipmi/ipmi_smic_sm.c index 39d7e5ef1a2..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; @@ -141,18 +141,19 @@ static int start_smic_transaction(struct si_sm_data *smic, { unsigned int i; - if ((size < 2) || (size > MAX_SMIC_WRITE_SIZE)) { - return -1; - } - if ((smic->state != SMIC_IDLE) && (smic->state != SMIC_HOSED)) { - return -2; - } + if (size < 2) + return IPMI_REQ_LEN_INVALID_ERR; + if (size > MAX_SMIC_WRITE_SIZE) + return IPMI_REQ_LEN_EXCEEDED_ERR; + + if ((smic->state != SMIC_IDLE) && (smic->state != SMIC_HOSED)) + 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); @@ -171,11 +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; @@ -221,8 +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); } @@ -231,10 +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; @@ -252,14 +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++; } } @@ -334,7 +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; @@ -345,13 +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) { @@ -364,9 +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); @@ -375,9 +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: @@ -389,7 +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"); @@ -409,8 +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 */ @@ -422,10 +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: @@ -440,52 +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: @@ -500,15 +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); @@ -521,9 +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( @@ -544,10 +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"); @@ -563,7 +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; } @@ -574,10 +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; @@ -593,8 +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,