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authorGrant Likely <grant.likely@secretlab.ca>2010-05-25 00:38:26 -0600
committerGrant Likely <grant.likely@secretlab.ca>2010-05-25 00:38:26 -0600
commitb1e50ebcf24668e57f058deb48b0704b5391ed0f (patch)
tree17e1b69b249d0738317b732186340c9dd053f1a1 /drivers/serial/sunzilog.c
parent0c2a2ae32793e3500a15a449612485f5d17dd431 (diff)
parent7e125f7b9cbfce4101191b8076d606c517a73066 (diff)
downloadlinux-b1e50ebcf24668e57f058deb48b0704b5391ed0f.tar.bz2
Merge remote branch 'origin' into secretlab/next-spi
Diffstat (limited to 'drivers/serial/sunzilog.c')
-rw-r--r--drivers/serial/sunzilog.c65
1 files changed, 59 insertions, 6 deletions
diff --git a/drivers/serial/sunzilog.c b/drivers/serial/sunzilog.c
index 2c7a66af4f52..f9a24f4ebb34 100644
--- a/drivers/serial/sunzilog.c
+++ b/drivers/serial/sunzilog.c
@@ -102,6 +102,8 @@ struct uart_sunzilog_port {
#endif
};
+static void sunzilog_putchar(struct uart_port *port, int ch);
+
#define ZILOG_CHANNEL_FROM_PORT(PORT) ((struct zilog_channel __iomem *)((PORT)->membase))
#define UART_ZILOG(PORT) ((struct uart_sunzilog_port *)(PORT))
@@ -996,6 +998,50 @@ static int sunzilog_verify_port(struct uart_port *port, struct serial_struct *se
return -EINVAL;
}
+#ifdef CONFIG_CONSOLE_POLL
+static int sunzilog_get_poll_char(struct uart_port *port)
+{
+ unsigned char ch, r1;
+ struct uart_sunzilog_port *up = (struct uart_sunzilog_port *) port;
+ struct zilog_channel __iomem *channel
+ = ZILOG_CHANNEL_FROM_PORT(&up->port);
+
+
+ r1 = read_zsreg(channel, R1);
+ if (r1 & (PAR_ERR | Rx_OVR | CRC_ERR)) {
+ writeb(ERR_RES, &channel->control);
+ ZSDELAY();
+ ZS_WSYNC(channel);
+ }
+
+ ch = readb(&channel->control);
+ ZSDELAY();
+
+ /* This funny hack depends upon BRK_ABRT not interfering
+ * with the other bits we care about in R1.
+ */
+ if (ch & BRK_ABRT)
+ r1 |= BRK_ABRT;
+
+ if (!(ch & Rx_CH_AV))
+ return NO_POLL_CHAR;
+
+ ch = readb(&channel->data);
+ ZSDELAY();
+
+ ch &= up->parity_mask;
+ return ch;
+}
+
+static void sunzilog_put_poll_char(struct uart_port *port,
+ unsigned char ch)
+{
+ struct uart_sunzilog_port *up = (struct uart_sunzilog_port *)port;
+
+ sunzilog_putchar(&up->port, ch);
+}
+#endif /* CONFIG_CONSOLE_POLL */
+
static struct uart_ops sunzilog_pops = {
.tx_empty = sunzilog_tx_empty,
.set_mctrl = sunzilog_set_mctrl,
@@ -1013,6 +1059,10 @@ static struct uart_ops sunzilog_pops = {
.request_port = sunzilog_request_port,
.config_port = sunzilog_config_port,
.verify_port = sunzilog_verify_port,
+#ifdef CONFIG_CONSOLE_POLL
+ .poll_get_char = sunzilog_get_poll_char,
+ .poll_put_char = sunzilog_put_poll_char,
+#endif
};
static int uart_chip_count;
@@ -1180,7 +1230,7 @@ static int __init sunzilog_console_setup(struct console *con, char *options)
(sunzilog_reg.minor - 64) + con->index, con->index);
/* Get firmware console settings. */
- sunserial_console_termios(con, to_of_device(up->port.dev)->node);
+ sunserial_console_termios(con, to_of_device(up->port.dev)->dev.of_node);
/* Firmware console speed is limited to 150-->38400 baud so
* this hackish cflag thing is OK.
@@ -1358,7 +1408,7 @@ static int __devinit zs_probe(struct of_device *op, const struct of_device_id *m
int keyboard_mouse = 0;
int err;
- if (of_find_property(op->node, "keyboard", NULL))
+ if (of_find_property(op->dev.of_node, "keyboard", NULL))
keyboard_mouse = 1;
/* uarts must come before keyboards/mice */
@@ -1415,7 +1465,7 @@ static int __devinit zs_probe(struct of_device *op, const struct of_device_id *m
sunzilog_init_hw(&up[1]);
if (!keyboard_mouse) {
- if (sunserial_console_match(SUNZILOG_CONSOLE(), op->node,
+ if (sunserial_console_match(SUNZILOG_CONSOLE(), op->dev.of_node,
&sunzilog_reg, up[0].port.line,
false))
up->flags |= SUNZILOG_FLAG_IS_CONS;
@@ -1425,7 +1475,7 @@ static int __devinit zs_probe(struct of_device *op, const struct of_device_id *m
rp, sizeof(struct zilog_layout));
return err;
}
- if (sunserial_console_match(SUNZILOG_CONSOLE(), op->node,
+ if (sunserial_console_match(SUNZILOG_CONSOLE(), op->dev.of_node,
&sunzilog_reg, up[1].port.line,
false))
up->flags |= SUNZILOG_FLAG_IS_CONS;
@@ -1491,8 +1541,11 @@ static const struct of_device_id zs_match[] = {
MODULE_DEVICE_TABLE(of, zs_match);
static struct of_platform_driver zs_driver = {
- .name = "zs",
- .match_table = zs_match,
+ .driver = {
+ .name = "zs",
+ .owner = THIS_MODULE,
+ .of_match_table = zs_match,
+ },
.probe = zs_probe,
.remove = __devexit_p(zs_remove),
};