diff options
Diffstat (limited to 'drivers/parport/ieee1284_ops.c')
| -rw-r--r-- | drivers/parport/ieee1284_ops.c | 62 |
1 files changed, 29 insertions, 33 deletions
diff --git a/drivers/parport/ieee1284_ops.c b/drivers/parport/ieee1284_ops.c index ce1e2aad8b1..d6c77658231 100644 --- a/drivers/parport/ieee1284_ops.c +++ b/drivers/parport/ieee1284_ops.c @@ -165,17 +165,7 @@ size_t parport_ieee1284_read_nibble (struct parport *port, /* Does the error line indicate end of data? */ if (((i & 1) == 0) && (parport_read_status(port) & PARPORT_STATUS_ERROR)) { - port->physport->ieee1284.phase = IEEE1284_PH_HBUSY_DNA; - DPRINTK (KERN_DEBUG - "%s: No more nibble data (%d bytes)\n", - port->name, i/2); - - /* Go to reverse idle phase. */ - parport_frob_control (port, - PARPORT_CONTROL_AUTOFD, - PARPORT_CONTROL_AUTOFD); - port->physport->ieee1284.phase = IEEE1284_PH_REV_IDLE; - break; + goto end_of_data; } /* Event 7: Set nAutoFd low. */ @@ -225,18 +215,25 @@ size_t parport_ieee1284_read_nibble (struct parport *port, byte = nibble; } - i /= 2; /* i is now in bytes */ - if (i == len) { /* Read the last nibble without checking data avail. */ - port = port->physport; - if (parport_read_status (port) & PARPORT_STATUS_ERROR) - port->ieee1284.phase = IEEE1284_PH_HBUSY_DNA; + if (parport_read_status (port) & PARPORT_STATUS_ERROR) { + end_of_data: + DPRINTK (KERN_DEBUG + "%s: No more nibble data (%d bytes)\n", + port->name, i/2); + + /* Go to reverse idle phase. */ + parport_frob_control (port, + PARPORT_CONTROL_AUTOFD, + PARPORT_CONTROL_AUTOFD); + port->physport->ieee1284.phase = IEEE1284_PH_REV_IDLE; + } else - port->ieee1284.phase = IEEE1284_PH_HBUSY_DAVAIL; + port->physport->ieee1284.phase = IEEE1284_PH_HBUSY_DAVAIL; } - return i; + return i/2; #endif /* IEEE1284 support */ } @@ -256,17 +253,7 @@ size_t parport_ieee1284_read_byte (struct parport *port, /* Data available? */ if (parport_read_status (port) & PARPORT_STATUS_ERROR) { - port->physport->ieee1284.phase = IEEE1284_PH_HBUSY_DNA; - DPRINTK (KERN_DEBUG - "%s: No more byte data (%Zd bytes)\n", - port->name, count); - - /* Go to reverse idle phase. */ - parport_frob_control (port, - PARPORT_CONTROL_AUTOFD, - PARPORT_CONTROL_AUTOFD); - port->physport->ieee1284.phase = IEEE1284_PH_REV_IDLE; - break; + goto end_of_data; } /* Event 14: Place data bus in high impedance state. */ @@ -318,11 +305,20 @@ size_t parport_ieee1284_read_byte (struct parport *port, if (count == len) { /* Read the last byte without checking data avail. */ - port = port->physport; - if (parport_read_status (port) & PARPORT_STATUS_ERROR) - port->ieee1284.phase = IEEE1284_PH_HBUSY_DNA; + if (parport_read_status (port) & PARPORT_STATUS_ERROR) { + end_of_data: + DPRINTK (KERN_DEBUG + "%s: No more byte data (%Zd bytes)\n", + port->name, count); + + /* Go to reverse idle phase. */ + parport_frob_control (port, + PARPORT_CONTROL_AUTOFD, + PARPORT_CONTROL_AUTOFD); + port->physport->ieee1284.phase = IEEE1284_PH_REV_IDLE; + } else - port->ieee1284.phase = IEEE1284_PH_HBUSY_DAVAIL; + port->physport->ieee1284.phase = IEEE1284_PH_HBUSY_DAVAIL; } return count; |