1 /* linux/drivers/serial/samsung.h
3 * Driver for Samsung SoC onboard UARTs.
5 * Ben Dooks, Copyright (c) 2003-2005,2008 Simtec Electronics
6 * http://armlinux.simtec.co.uk/
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License version 2 as
10 * published by the Free Software Foundation.
13 struct s3c24xx_uart_info {
16 unsigned int fifosize;
17 unsigned long rx_fifomask;
18 unsigned long rx_fifoshift;
19 unsigned long rx_fifofull;
20 unsigned long tx_fifomask;
21 unsigned long tx_fifoshift;
22 unsigned long tx_fifofull;
24 /* uart port features */
26 unsigned int has_divslot:1;
28 /* clock source control */
30 int (*get_clksrc)(struct uart_port *, struct s3c24xx_uart_clksrc *clk);
31 int (*set_clksrc)(struct uart_port *, struct s3c24xx_uart_clksrc *clk);
34 int (*reset_port)(struct uart_port *, struct s3c2410_uartcfg *);
37 struct s3c24xx_uart_port {
38 unsigned char rx_claimed;
39 unsigned char tx_claimed;
40 unsigned int pm_level;
41 unsigned long baudclk_rate;
46 struct s3c24xx_uart_info *info;
47 struct s3c24xx_uart_clksrc *clksrc;
50 struct uart_port port;
52 #ifdef CONFIG_CPU_FREQ
53 struct notifier_block freq_transition;
57 /* conversion functions */
59 #define s3c24xx_dev_to_port(__dev) (struct uart_port *)dev_get_drvdata(__dev)
60 #define s3c24xx_dev_to_cfg(__dev) (struct s3c2410_uartcfg *)((__dev)->platform_data)
62 /* register access controls */
64 #define portaddr(port, reg) ((port)->membase + (reg))
66 #define rd_regb(port, reg) (__raw_readb(portaddr(port, reg)))
67 #define rd_regl(port, reg) (__raw_readl(portaddr(port, reg)))
69 #define wr_regb(port, reg, val) __raw_writeb(val, portaddr(port, reg))
70 #define wr_regl(port, reg, val) __raw_writel(val, portaddr(port, reg))
72 extern int s3c24xx_serial_probe(struct platform_device *dev,
73 struct s3c24xx_uart_info *uart);
75 extern int s3c24xx_serial_remove(struct platform_device *dev);
77 extern int s3c24xx_serial_initconsole(struct platform_driver *drv,
78 struct s3c24xx_uart_info *uart);
80 extern int s3c24xx_serial_init(struct platform_driver *drv,
81 struct s3c24xx_uart_info *info);
83 #ifdef CONFIG_SERIAL_SAMSUNG_CONSOLE
85 #define s3c24xx_console_init(__drv, __inf) \
86 static int __init s3c_serial_console_init(void) \
88 return s3c24xx_serial_initconsole(__drv, __inf); \
91 console_initcall(s3c_serial_console_init)
94 #define s3c24xx_console_init(drv, inf) extern void no_console(void)
97 #ifdef CONFIG_SERIAL_SAMSUNG_DEBUG
99 extern void printascii(const char *);
101 static void dbg(const char *fmt, ...)
107 vsprintf(buff, fmt, va);
114 #define dbg(x...) do { } while (0)