diff options
Diffstat (limited to 'src')
| -rw-r--r-- | src/drivers/ipmi/ipmi_kcs.c | 72 |
1 files changed, 44 insertions, 28 deletions
diff --git a/src/drivers/ipmi/ipmi_kcs.c b/src/drivers/ipmi/ipmi_kcs.c index d17a1f98d2..397a800df3 100644 --- a/src/drivers/ipmi/ipmi_kcs.c +++ b/src/drivers/ipmi/ipmi_kcs.c @@ -22,7 +22,7 @@ #define IPMI_KCS_STATE(_x) ((_x) >> 6) -#define IPMI_KCS_GET_STATUS_ABORT +#define IPMI_KCS_GET_STATUS_ABORT 0x60 #define IPMI_KCS_START_WRITE 0x61 #define IPMI_KCS_END_WRITE 0x62 #define IPMI_KCS_READ_BYTE 0x68 @@ -43,7 +43,7 @@ static unsigned char ipmi_kcs_status(int port) { unsigned char status = inb(IPMI_STAT(port)); - printk(BIOS_DEBUG, "%s: 0x%02x\n", __func__, status); + printk(BIOS_SPEW, "%s: 0x%02x\n", __func__, status); return status; } @@ -77,7 +77,7 @@ static int ipmi_kcs_send_data_byte(int port, const unsigned char byte) { unsigned char status; - printk(BIOS_DEBUG, "%s: %02x\n", __func__, byte); + printk(BIOS_SPEW, "%s: 0x%02x\n", __func__, byte); outb(byte, IPMI_DATA(port)); @@ -100,7 +100,7 @@ static int ipmi_kcs_send_last_data_byte(int port, const unsigned char byte) { unsigned char status; - printk(BIOS_DEBUG, "%s: %02x\n", __func__, byte); + printk(BIOS_SPEW, "%s: 0x%02x\n", __func__, byte); if (wait_ibf_timeout(port)) return 1; @@ -121,7 +121,7 @@ static int ipmi_kcs_send_last_data_byte(int port, const unsigned char byte) static int ipmi_kcs_send_cmd_byte(int port, const unsigned char byte) { - printk(BIOS_DEBUG, "%s: 0x%02x\n", __func__, byte); + printk(BIOS_SPEW, "%s: 0x%02x\n", __func__, byte); if (wait_ibf_timeout(port)) return 1; @@ -156,31 +156,47 @@ static int ipmi_kcs_send_message(int port, int netfn, int lun, int cmd, return ret; } - ret = ipmi_kcs_send_data_byte(port, cmd); - if (ret) { - printk(BIOS_ERR, "IPMI CMD failed\n"); - return ret; - } + if (!len) { + ret = ipmi_kcs_send_cmd_byte(port, IPMI_KCS_END_WRITE); + if (ret) { + printk(BIOS_ERR, "IPMI END WRITE failed\n"); + return ret; + } - while (len-- > 1) { - ret = ipmi_kcs_send_data_byte(port, *msg++); + ret = ipmi_kcs_send_last_data_byte(port, cmd); if (ret) { printk(BIOS_ERR, "IPMI BYTE WRITE failed\n"); return ret; } - } + } else { + ret = ipmi_kcs_send_data_byte(port, cmd); + if (ret) { + printk(BIOS_ERR, "IPMI CMD failed\n"); + return ret; + } - ret = ipmi_kcs_send_cmd_byte(port, IPMI_KCS_END_WRITE); - if (ret) { - printk(BIOS_ERR, "IPMI END WRITE failed\n"); - return ret; - } + while (len > 1) { + ret = ipmi_kcs_send_data_byte(port, *msg++); + if (ret) { + printk(BIOS_ERR, "IPMI BYTE WRITE failed\n"); + return ret; + } + len--; + } - ret = ipmi_kcs_send_last_data_byte(port, *msg++); - if (ret) { - printk(BIOS_ERR, "IPMI BYTE WRITE failed\n"); - return ret; + ret = ipmi_kcs_send_cmd_byte(port, IPMI_KCS_END_WRITE); + if (ret) { + printk(BIOS_ERR, "IPMI END WRITE failed\n"); + return ret; + } + + ret = ipmi_kcs_send_last_data_byte(port, *msg); + if (ret) { + printk(BIOS_ERR, "IPMI BYTE WRITE failed\n"); + return ret; + } } + return 0; } @@ -188,9 +204,6 @@ static int ipmi_kcs_read_message(int port, unsigned char *msg, int len) { int status, ret = 0; - if (!msg) - return 0; - if (wait_ibf_timeout(port)) return 1; @@ -201,15 +214,18 @@ static int ipmi_kcs_read_message(int port, unsigned char *msg, int len) return ret; if (IPMI_KCS_STATE(status) != IPMI_KCS_STATE_READ) { - printk(BIOS_ERR, "%s: wrong state: 0x%02x\n", __func__, status); + printk(BIOS_ERR, "%s: wrong state: 0x%02x\n", __func__, + status); return -1; } if (wait_obf_timeout(port)) return -1; - *msg++ = inb(IPMI_DATA(port)); - ret++; + if (msg && (ret < len)) { + *msg++ = inb(IPMI_DATA(port)); + ret++; + } if (wait_ibf_timeout(port)) return -1; |