mirror of
https://github.com/openwrt/openwrt.git
synced 2024-12-22 23:12:32 +00:00
72 lines
1.9 KiB
Diff
72 lines
1.9 KiB
Diff
--- linux-2.6.19.2.old/drivers/serial/atmel_serial.c 2007-05-01 13:08:03.000000000 +0200
|
|
+++ linux-2.6.19.2/drivers/serial/atmel_serial.c 2007-05-09 10:21:45.000000000 +0200
|
|
@@ -173,6 +173,34 @@
|
|
at91_set_gpio_value(AT91_PIN_PA21, 0);
|
|
else
|
|
at91_set_gpio_value(AT91_PIN_PA21, 1);
|
|
+
|
|
+ /*
|
|
+ * FDL VersaLink adds GPIOS to provide full modem control on
|
|
+ * USART 0 - Drive DTR and RI pins manually
|
|
+ */
|
|
+ if (mctrl & TIOCM_DTR)
|
|
+ at91_set_gpio_value(AT91_PIN_PA19, 0);
|
|
+ else
|
|
+ at91_set_gpio_value(AT91_PIN_PA19, 1);
|
|
+ if (mctrl & TIOCM_RI)
|
|
+ at91_set_gpio_value(AT91_PIN_PB7, 0);
|
|
+ else
|
|
+ at91_set_gpio_value(AT91_PIN_PB7, 1);
|
|
+ }
|
|
+
|
|
+ /*
|
|
+ * FDL VersaLink adds GPIOS to provide full modem control on
|
|
+ * USART 3 - Drive DTR and RI pins manually
|
|
+ */
|
|
+ if (port->mapbase == AT91RM9200_BASE_US3) {
|
|
+ if (mctrl & TIOCM_DTR)
|
|
+ at91_set_gpio_value(AT91_PIN_PA24, 0);
|
|
+ else
|
|
+ at91_set_gpio_value(AT91_PIN_PA24, 1);
|
|
+ if (mctrl & TIOCM_RI)
|
|
+ at91_set_gpio_value(AT91_PIN_PB2, 0);
|
|
+ else
|
|
+ at91_set_gpio_value(AT91_PIN_PB2, 1);
|
|
}
|
|
}
|
|
#endif
|
|
@@ -210,8 +238,14 @@
|
|
/*
|
|
* The control signals are active low.
|
|
*/
|
|
- if (!(status & ATMEL_US_DCD))
|
|
- ret |= TIOCM_CD;
|
|
+
|
|
+ /*
|
|
+ * Ignore DCD reister for USARTS 0 and 3 as FDL Versalink uses
|
|
+ * GPIO's for these signals
|
|
+ */
|
|
+ if (!(port->mapbase == AT91RM9200_BASE_US0 || port->mapbase == AT91RM9200_BASE_US3))
|
|
+ if (!(status & ATMEL_US_DCD))
|
|
+ ret |= TIOCM_CD;
|
|
if (!(status & ATMEL_US_CTS))
|
|
ret |= TIOCM_CTS;
|
|
if (!(status & ATMEL_US_DSR))
|
|
@@ -219,6 +253,16 @@
|
|
if (!(status & ATMEL_US_RI))
|
|
ret |= TIOCM_RI;
|
|
|
|
+ /*
|
|
+ * Read the GPIO's for the FDL VersaLink special case
|
|
+ */
|
|
+ if (port->mapbase == AT91RM9200_BASE_US0)
|
|
+ if (!(at91_get_gpio_value(AT91_PIN_PB6)))
|
|
+ ret |= TIOCM_CD;
|
|
+ if (port->mapbase == AT91RM9200_BASE_US3)
|
|
+ if (!(at91_get_gpio_value(AT91_PIN_PB29)))
|
|
+ ret |= TIOCM_CD;
|
|
+
|
|
return ret;
|
|
}
|
|
|