Skip to content

Commit

Permalink
---
Browse files Browse the repository at this point in the history
yaml
---
r: 83835
b: refs/heads/master
c: ff11d07
h: refs/heads/master
i:
  83833: 07091e6
  83831: 6718162
v: v3
  • Loading branch information
Maciej W. Rozycki authored and Linus Torvalds committed Feb 7, 2008
1 parent 0dd1ae0 commit 9894635
Show file tree
Hide file tree
Showing 3 changed files with 57 additions and 52 deletions.
2 changes: 1 addition & 1 deletion [refs]
Original file line number Diff line number Diff line change
@@ -1,2 +1,2 @@
---
refs/heads/master: 789c7048bfaa4901860b4c86606c2651fc2298f4
refs/heads/master: ff11d0780376a3821d790a6ceb8b297d976b14fe
103 changes: 54 additions & 49 deletions trunk/drivers/serial/dz.c
Original file line number Diff line number Diff line change
Expand Up @@ -128,8 +128,8 @@ static void dz_stop_rx(struct uart_port *uport)
{
struct dz_port *dport = (struct dz_port *)uport;

dport->cflag &= ~DZ_CREAD;
dz_out(dport, DZ_LPR, dport->cflag | dport->port.line);
dport->cflag &= ~DZ_RXENAB;
dz_out(dport, DZ_LPR, dport->cflag);
}

static void dz_enable_ms(struct uart_port *port)
Expand Down Expand Up @@ -464,12 +464,51 @@ static void dz_break_ctl(struct uart_port *uport, int break_state)
spin_unlock_irqrestore(&uport->lock, flags);
}

static int dz_encode_baud_rate(unsigned int baud)
{
switch (baud) {
case 50:
return DZ_B50;
case 75:
return DZ_B75;
case 110:
return DZ_B110;
case 134:
return DZ_B134;
case 150:
return DZ_B150;
case 300:
return DZ_B300;
case 600:
return DZ_B600;
case 1200:
return DZ_B1200;
case 1800:
return DZ_B1800;
case 2000:
return DZ_B2000;
case 2400:
return DZ_B2400;
case 3600:
return DZ_B3600;
case 4800:
return DZ_B4800;
case 7200:
return DZ_B7200;
case 9600:
return DZ_B9600;
default:
return -1;
}
}

static void dz_set_termios(struct uart_port *uport, struct ktermios *termios,
struct ktermios *old_termios)
{
struct dz_port *dport = (struct dz_port *)uport;
unsigned long flags;
unsigned int cflag, baud;
int bflag;

cflag = dport->port.line;

Expand All @@ -496,60 +535,26 @@ static void dz_set_termios(struct uart_port *uport, struct ktermios *termios,
cflag |= DZ_PARODD;

baud = uart_get_baud_rate(uport, termios, old_termios, 50, 9600);
switch (baud) {
case 50:
cflag |= DZ_B50;
break;
case 75:
cflag |= DZ_B75;
break;
case 110:
cflag |= DZ_B110;
break;
case 134:
cflag |= DZ_B134;
break;
case 150:
cflag |= DZ_B150;
break;
case 300:
cflag |= DZ_B300;
break;
case 600:
cflag |= DZ_B600;
break;
case 1200:
cflag |= DZ_B1200;
break;
case 1800:
cflag |= DZ_B1800;
break;
case 2000:
cflag |= DZ_B2000;
break;
case 2400:
cflag |= DZ_B2400;
break;
case 3600:
cflag |= DZ_B3600;
break;
case 4800:
cflag |= DZ_B4800;
break;
case 7200:
cflag |= DZ_B7200;
break;
case 9600:
default:
cflag |= DZ_B9600;
bflag = dz_encode_baud_rate(baud);
if (bflag < 0) { /* Try to keep unchanged. */
baud = uart_get_baud_rate(uport, old_termios, NULL, 50, 9600);
bflag = dz_encode_baud_rate(baud);
if (bflag < 0) { /* Resort to 9600. */
baud = 9600;
bflag = DZ_B9600;
}
tty_termios_encode_baud_rate(termios, baud, baud);
}
cflag |= bflag;

if (termios->c_cflag & CREAD)
cflag |= DZ_RXENAB;

spin_lock_irqsave(&dport->port.lock, flags);

dz_out(dport, DZ_LPR, cflag | dport->port.line);
uart_update_timeout(uport, termios->c_cflag, baud);

dz_out(dport, DZ_LPR, cflag);
dport->cflag = cflag;

/* setup accept flag */
Expand Down
4 changes: 2 additions & 2 deletions trunk/drivers/serial/dz.h
Original file line number Diff line number Diff line change
Expand Up @@ -109,8 +109,8 @@
#define DZ_B7200 0x0D00
#define DZ_B9600 0x0E00

#define DZ_CREAD 0x1000 /* Enable receiver */
#define DZ_RXENAB 0x1000 /* enable receive char */
#define DZ_RXENAB 0x1000 /* Receiver Enable */

/*
* Addresses for the DZ registers
*/
Expand Down

0 comments on commit 9894635

Please sign in to comment.