diff options
Diffstat (limited to 'include/linux/serial_8250.h')
-rw-r--r-- | include/linux/serial_8250.h | 21 |
1 files changed, 20 insertions, 1 deletions
diff --git a/include/linux/serial_8250.h b/include/linux/serial_8250.h index d64e7bbe1f2f..42fc8f64f48e 100644 --- a/include/linux/serial_8250.h +++ b/include/linux/serial_8250.h @@ -11,13 +11,29 @@ #include <linux/serial_reg.h> #include <linux/platform_device.h> +struct uart_8250_port; + /* * This is the platform device platform_data structure + * + * @mapsize: Port size for ioremap() + * @bugs: Port bugs + * + * @dl_read: ``u32 ()(struct uart_8250_port *up)`` + * + * UART divisor latch read. + * + * @dl_write: ``void ()(struct uart_8250_port *up, u32 value)`` + * + * Write @value into UART divisor latch. + * + * Locking: Caller holds port's lock. */ struct plat_serial8250_port { unsigned long iobase; /* io base address */ void __iomem *membase; /* ioremap cookie or NULL */ resource_size_t mapbase; /* resource base */ + resource_size_t mapsize; unsigned int uartclk; /* UART clock rate */ unsigned int irq; /* interrupt number */ unsigned long irqflags; /* request_irq flags */ @@ -28,8 +44,11 @@ struct plat_serial8250_port { unsigned char has_sysrq; /* supports magic SysRq */ unsigned int type; /* If UPF_FIXED_TYPE */ upf_t flags; /* UPF_* flags */ + u16 bugs; /* port bugs */ unsigned int (*serial_in)(struct uart_port *, int); void (*serial_out)(struct uart_port *, int, int); + u32 (*dl_read)(struct uart_8250_port *up); + void (*dl_write)(struct uart_8250_port *up, u32 value); void (*set_termios)(struct uart_port *, struct ktermios *new, const struct ktermios *old); @@ -106,7 +125,7 @@ struct uart_8250_port { struct timer_list timer; /* "no irq" timer */ struct list_head list; /* ports on this IRQ */ u32 capabilities; /* port capabilities */ - unsigned short bugs; /* port bugs */ + u16 bugs; /* port bugs */ bool fifo_bug; /* min RX trigger if enabled */ unsigned int tx_loadsz; /* transmit fifo load size */ unsigned char acr; |