diff options
Diffstat (limited to 'src/southbridge/broadcom/bcm5785/smbus.h')
| -rw-r--r-- | src/southbridge/broadcom/bcm5785/smbus.h | 110 |
1 files changed, 55 insertions, 55 deletions
diff --git a/src/southbridge/broadcom/bcm5785/smbus.h b/src/southbridge/broadcom/bcm5785/smbus.h index bb43269b9b..76c593ba19 100644 --- a/src/southbridge/broadcom/bcm5785/smbus.h +++ b/src/southbridge/broadcom/bcm5785/smbus.h @@ -53,7 +53,7 @@ static int smbus_wait_until_ready(unsigned smbus_io_base) return 0; } outb(val, smbus_io_base + SMBHSTSTAT); - } while(--loops); + } while (--loops); return -2; // time out } @@ -73,7 +73,7 @@ static int smbus_wait_until_done(unsigned smbus_io_base) outb(val, smbus_io_base + SMBHSTSTAT); // clear status return 0; // } - } while(--loops); + } while (--loops); return -3; // timeout } @@ -81,54 +81,54 @@ static int do_smbus_recv_byte(unsigned smbus_io_base, unsigned device) { uint8_t byte; - if (smbus_wait_until_ready(smbus_io_base) < 0) { - return -2; // not ready - } + if (smbus_wait_until_ready(smbus_io_base) < 0) { + return -2; // not ready + } - /* set the device I'm talking too */ - outb(((device & 0x7f) << 1)|1 , smbus_io_base + SMBHSTADDR); + /* set the device I'm talking too */ + outb(((device & 0x7f) << 1)|1 , smbus_io_base + SMBHSTADDR); - byte = inb(smbus_io_base + SMBHSTCTRL); - byte &= 0xe3; // Clear [4:2] - byte |= (1<<2) | (1<<6); // Byte data read/write command, start the command - outb(byte, smbus_io_base + SMBHSTCTRL); + byte = inb(smbus_io_base + SMBHSTCTRL); + byte &= 0xe3; // Clear [4:2] + byte |= (1<<2) | (1<<6); // Byte data read/write command, start the command + outb(byte, smbus_io_base + SMBHSTCTRL); - /* poll for transaction completion */ - if (smbus_wait_until_done(smbus_io_base) < 0) { - return -3; // timeout or error - } + /* poll for transaction completion */ + if (smbus_wait_until_done(smbus_io_base) < 0) { + return -3; // timeout or error + } - /* read results of transaction */ - byte = inb(smbus_io_base + SMBHSTCMD); + /* read results of transaction */ + byte = inb(smbus_io_base + SMBHSTCMD); return byte; } static int do_smbus_send_byte(unsigned smbus_io_base, unsigned device, unsigned char val) { - uint8_t byte; + uint8_t byte; - if (smbus_wait_until_ready(smbus_io_base) < 0) { - return -2; // not ready - } + if (smbus_wait_until_ready(smbus_io_base) < 0) { + return -2; // not ready + } - /* set the command... */ - outb(val, smbus_io_base + SMBHSTCMD); + /* set the command... */ + outb(val, smbus_io_base + SMBHSTCMD); - /* set the device I'm talking too */ - outb(((device & 0x7f) << 1)|0 , smbus_io_base + SMBHSTADDR); + /* set the device I'm talking too */ + outb(((device & 0x7f) << 1)|0 , smbus_io_base + SMBHSTADDR); - byte = inb(smbus_io_base + SMBHSTCTRL); - byte &= 0xe3; // Clear [4:2] - byte |= (1<<2) | (1<<6); // Byte data read/write command, start the command - outb(byte, smbus_io_base + SMBHSTCTRL); + byte = inb(smbus_io_base + SMBHSTCTRL); + byte &= 0xe3; // Clear [4:2] + byte |= (1<<2) | (1<<6); // Byte data read/write command, start the command + outb(byte, smbus_io_base + SMBHSTCTRL); - /* poll for transaction completion */ - if (smbus_wait_until_done(smbus_io_base) < 0) { - return -3; // timeout or error - } + /* poll for transaction completion */ + if (smbus_wait_until_done(smbus_io_base) < 0) { + return -3; // timeout or error + } - return 0; + return 0; } static int do_smbus_read_byte(unsigned smbus_io_base, unsigned device, unsigned address) @@ -142,8 +142,8 @@ static int do_smbus_read_byte(unsigned smbus_io_base, unsigned device, unsigned /* set the command/address... */ outb(address & 0xff, smbus_io_base + SMBHSTCMD); - /* set the device I'm talking too */ - outb(((device & 0x7f) << 1)|1 , smbus_io_base + SMBHSTADDR); + /* set the device I'm talking too */ + outb(((device & 0x7f) << 1)|1 , smbus_io_base + SMBHSTADDR); byte = inb(smbus_io_base + SMBHSTCTRL); byte &= 0xe3; // Clear [4:2] @@ -163,30 +163,30 @@ static int do_smbus_read_byte(unsigned smbus_io_base, unsigned device, unsigned static int do_smbus_write_byte(unsigned smbus_io_base, unsigned device, unsigned address, unsigned char val) { - uint8_t byte; + uint8_t byte; - if (smbus_wait_until_ready(smbus_io_base) < 0) { - return -2; // not ready - } + if (smbus_wait_until_ready(smbus_io_base) < 0) { + return -2; // not ready + } - /* set the command/address... */ - outb(address & 0xff, smbus_io_base + SMBHSTCMD); + /* set the command/address... */ + outb(address & 0xff, smbus_io_base + SMBHSTCMD); - /* set the device I'm talking too */ - outb(((device & 0x7f) << 1)|0 , smbus_io_base + SMBHSTADDR); + /* set the device I'm talking too */ + outb(((device & 0x7f) << 1)|0 , smbus_io_base + SMBHSTADDR); - /* output value */ - outb(val, smbus_io_base + SMBHSTDAT0); + /* output value */ + outb(val, smbus_io_base + SMBHSTDAT0); - byte = inb(smbus_io_base + SMBHSTCTRL); - byte &= 0xe3; // Clear [4:2] - byte |= (1<<3) | (1<<6); // Byte data read/write command, start the command - outb(byte, smbus_io_base + SMBHSTCTRL); + byte = inb(smbus_io_base + SMBHSTCTRL); + byte &= 0xe3; // Clear [4:2] + byte |= (1<<3) | (1<<6); // Byte data read/write command, start the command + outb(byte, smbus_io_base + SMBHSTCTRL); - /* poll for transaction completion */ - if (smbus_wait_until_done(smbus_io_base) < 0) { - return -3; // timeout or error - } + /* poll for transaction completion */ + if (smbus_wait_until_done(smbus_io_base) < 0) { + return -3; // timeout or error + } - return 0; + return 0; } |