Warner Losh f83ed22cb6 Plumb the cn_grab and cn_ungrab routines down into the uart ... clients. Mask RX interrupts while grabbed on the atmel serial driver. This UART interrupts every character. When interrupts are enabled at the mountroot> prompt, this means the ISR eats the characters. Rather than try to create a cooperative buffering system for the low level kernel console, instead just mask out the ISR. For NS8250 and decsendents this isn't needed, since interrupts only happen after 14 or more characters (depending on the fifo settings). Plumb such that these are optional so there's no change in behavior for all the other UART clients. ddb worked on this platform because all interrupts were disabled while it was running, so this problem wasn't noticed. The mountroot> issue has been around for a very very long time. MFC after: 3 days		2013-12-21 16:23:31 +00:00
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uart_bus_acpi.c
uart_bus_ebus.c
uart_bus_fdt.c	Add support for Freescale Vybrid Family VF600 heterogeneous	2013-11-12 18:02:56 +00:00
uart_bus_isa.c
uart_bus_pccard.c
uart_bus_pci.c	Add new AMT serial port PCI ID on Intel Lynx Point chipset	2013-11-07 19:38:19 +00:00
uart_bus_puc.c
uart_bus_scc.c
uart_bus.h
uart_core.c	Allow UART_POLL_FREQ to be set as a kernel option as well as via tunable	2013-08-19 15:51:30 +00:00
uart_cpu_fdt.c	Arrange for uart_cpu_fdt's probe() routine to use the same table of compat	2013-11-02 20:14:39 +00:00
uart_cpu_ia64.c
uart_cpu_pc98.c
uart_cpu_powerpc.c	Real OF systems have an ihandle under /chosen/stdout, not a phandle. Use	2013-12-01 19:05:32 +00:00
uart_cpu_sparc64.c
uart_cpu_x86.c
uart_cpu.h	Plumb the cn_grab and cn_ungrab routines down into the uart	2013-12-21 16:23:31 +00:00
uart_dbg.c
uart_dev_imx5xx.h
uart_dev_imx.c	Fix crossed fingers output. Only comment changed.	2013-10-24 09:27:06 +00:00
uart_dev_lpc.c
uart_dev_ns8250.c	Wait for DesignWare UART transfers completion before accessing line control	2013-10-26 17:24:59 +00:00
uart_dev_ns8250.h	Make the uart ns8250 high-level interface public rather than static.	2013-08-21 14:26:15 +00:00
uart_dev_pl011.c	Calculate the baud rate divisor rather than using a hard-coded value.	2013-10-20 23:40:16 +00:00
uart_dev_quicc.c	Fix low-level uart drivers that set their fifo sizes in the softc too late.	2013-04-01 00:44:20 +00:00
uart_dev_sab82532.c	Fix low-level uart drivers that set their fifo sizes in the softc too late.	2013-04-01 00:44:20 +00:00
uart_dev_ti8250.c	Add support for uarts other than the serial console in TI OMAP SoCs.	2013-08-21 14:33:02 +00:00
uart_dev_z8530.c	Fix low-level uart drivers that set their fifo sizes in the softc too late.	2013-04-01 00:44:20 +00:00
uart_if.m
uart_kbd_sun_tables.h
uart_kbd_sun.c
uart_kbd_sun.h
uart_subr.c	Teach UART to attach Exynos/s3/s5 class driver.	2013-06-29 23:48:08 +00:00
uart_tty.c	Plumb the cn_grab and cn_ungrab routines down into the uart	2013-12-21 16:23:31 +00:00
uart.h	Add support for Freescale Vybrid Family VF600 heterogeneous	2013-11-12 18:02:56 +00:00