diff options
Diffstat (limited to 'include/linux')
-rw-r--r-- | include/linux/serial_8250.h | 45 | ||||
-rw-r--r-- | include/linux/serial_core.h | 7 |
2 files changed, 43 insertions, 9 deletions
diff --git a/include/linux/serial_8250.h b/include/linux/serial_8250.h index 6f78f302d272..be65de65fe61 100644 --- a/include/linux/serial_8250.h +++ b/include/linux/serial_8250.h @@ -7,17 +7,34 @@ #ifndef _LINUX_SERIAL_8250_H #define _LINUX_SERIAL_8250_H +#include <linux/errno.h> #include <linux/serial_core.h> #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 +45,11 @@ 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); @@ -90,15 +110,23 @@ struct uart_8250_em485 { * their own 8250 ports without registering their own * platform device. Using these will make your driver * dependent on the 8250 driver. + * + * @dl_read: ``u32 ()(struct uart_8250_port *port)`` + * + * UART divisor latch read. + * + * @dl_write: ``void ()(struct uart_8250_port *port, u32 value)`` + * + * Write @value into UART divisor latch. + * + * Locking: Caller holds port's lock. */ - struct uart_8250_port { struct uart_port 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 */ - bool fifo_bug; /* min RX trigger if enabled */ + u16 bugs; /* port bugs */ unsigned int tx_loadsz; /* transmit fifo load size */ unsigned char acr; unsigned char fcr; @@ -129,8 +157,8 @@ struct uart_8250_port { const struct uart_8250_ops *ops; /* 8250 specific callbacks */ - int (*dl_read)(struct uart_8250_port *); - void (*dl_write)(struct uart_8250_port *, int); + u32 (*dl_read)(struct uart_8250_port *up); + void (*dl_write)(struct uart_8250_port *up, u32 value); struct uart_8250_em485 *em485; void (*rs485_start_tx)(struct uart_8250_port *); @@ -183,8 +211,11 @@ void serial8250_set_isa_configurator(void (*v)(int port, struct uart_port *up, u32 *capabilities)); #ifdef CONFIG_SERIAL_8250_RT288X -unsigned int au_serial_in(struct uart_port *p, int offset); -void au_serial_out(struct uart_port *p, int offset, int value); +int rt288x_setup(struct uart_port *p); +int au_platform_setup(struct plat_serial8250_port *p); +#else +static inline int rt288x_setup(struct uart_port *p) { return -ENODEV; } +static inline int au_platform_setup(struct plat_serial8250_port *p) { return -ENODEV; } #endif #endif diff --git a/include/linux/serial_core.h b/include/linux/serial_core.h index 66ecec15a1bf..6d58c57acdaa 100644 --- a/include/linux/serial_core.h +++ b/include/linux/serial_core.h @@ -28,6 +28,7 @@ struct uart_port; struct serial_struct; +struct serial_port_device; struct device; struct gpio_desc; @@ -458,6 +459,7 @@ struct uart_port { struct serial_rs485 *rs485); int (*iso7816_config)(struct uart_port *, struct serial_iso7816 *iso7816); + int ctrl_id; /* optional serial core controller id */ unsigned int irq; /* irq number */ unsigned long irqflags; /* irq flags */ unsigned int uartclk; /* base uart clock */ @@ -563,7 +565,8 @@ struct uart_port { unsigned int minor; resource_size_t mapbase; /* for ioremap */ resource_size_t mapsize; - struct device *dev; /* parent device */ + struct device *dev; /* serial port physical parent device */ + struct serial_port_device *port_dev; /* serial core port device */ unsigned long sysrq; /* sysrq timeout */ unsigned int sysrq_ch; /* char for sysrq */ @@ -853,7 +856,7 @@ void uart_console_write(struct uart_port *port, const char *s, int uart_register_driver(struct uart_driver *uart); void uart_unregister_driver(struct uart_driver *uart); int uart_add_one_port(struct uart_driver *reg, struct uart_port *port); -int uart_remove_one_port(struct uart_driver *reg, struct uart_port *port); +void uart_remove_one_port(struct uart_driver *reg, struct uart_port *port); bool uart_match_port(const struct uart_port *port1, const struct uart_port *port2); |