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1 | /* linux/drivers/serial/samsung.h |
2 | * | |
3 | * Driver for Samsung SoC onboard UARTs. | |
4 | * | |
5 | * Ben Dooks, Copyright (c) 2003-2005,2008 Simtec Electronics | |
6 | * http://armlinux.simtec.co.uk/ | |
7 | * | |
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. | |
11 | */ | |
12 | ||
13 | struct s3c24xx_uart_info { | |
14 | char *name; | |
15 | unsigned int type; | |
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; | |
23 | ||
24 | /* clock source control */ | |
25 | ||
26 | int (*get_clksrc)(struct uart_port *, struct s3c24xx_uart_clksrc *clk); | |
27 | int (*set_clksrc)(struct uart_port *, struct s3c24xx_uart_clksrc *clk); | |
28 | ||
29 | /* uart controls */ | |
30 | int (*reset_port)(struct uart_port *, struct s3c2410_uartcfg *); | |
31 | }; | |
32 | ||
33 | struct s3c24xx_uart_port { | |
34 | unsigned char rx_claimed; | |
35 | unsigned char tx_claimed; | |
36 | ||
37 | struct s3c24xx_uart_info *info; | |
38 | struct s3c24xx_uart_clksrc *clksrc; | |
39 | struct clk *clk; | |
40 | struct clk *baudclk; | |
41 | struct uart_port port; | |
42 | }; | |
43 | ||
44 | /* conversion functions */ | |
45 | ||
46 | #define s3c24xx_dev_to_port(__dev) (struct uart_port *)dev_get_drvdata(__dev) | |
47 | #define s3c24xx_dev_to_cfg(__dev) (struct s3c2410_uartcfg *)((__dev)->platform_data) | |
48 | ||
49 | /* register access controls */ | |
50 | ||
51 | #define portaddr(port, reg) ((port)->membase + (reg)) | |
52 | ||
53 | #define rd_regb(port, reg) (__raw_readb(portaddr(port, reg))) | |
54 | #define rd_regl(port, reg) (__raw_readl(portaddr(port, reg))) | |
55 | ||
56 | #define wr_regb(port, reg, val) __raw_writeb(val, portaddr(port, reg)) | |
57 | #define wr_regl(port, reg, val) __raw_writel(val, portaddr(port, reg)) | |
58 | ||
59 | extern int s3c24xx_serial_probe(struct platform_device *dev, | |
60 | struct s3c24xx_uart_info *uart); | |
61 | ||
62 | extern int s3c24xx_serial_remove(struct platform_device *dev); | |
63 | ||
64 | extern int s3c24xx_serial_initconsole(struct platform_driver *drv, | |
65 | struct s3c24xx_uart_info *uart); | |
66 | ||
67 | extern int s3c24xx_serial_init(struct platform_driver *drv, | |
68 | struct s3c24xx_uart_info *info); | |
69 | ||
70 | #ifdef CONFIG_SERIAL_SAMSUNG_CONSOLE | |
71 | ||
72 | #define s3c24xx_console_init(__drv, __inf) \ | |
73 | static int __init s3c_serial_console_init(void) \ | |
74 | { \ | |
75 | return s3c24xx_serial_initconsole(__drv, __inf); \ | |
76 | } \ | |
77 | \ | |
78 | console_initcall(s3c_serial_console_init) | |
79 | ||
80 | #else | |
81 | #define s3c24xx_console_init(drv, inf) extern void no_console(void) | |
82 | #endif | |
83 | ||
84 | #ifdef CONFIG_SERIAL_SAMSUNG_DEBUG | |
85 | ||
86 | extern void printascii(const char *); | |
87 | ||
88 | static void dbg(const char *fmt, ...) | |
89 | { | |
90 | va_list va; | |
91 | char buff[256]; | |
92 | ||
93 | va_start(va, fmt); | |
94 | vsprintf(buff, fmt, va); | |
95 | va_end(va); | |
96 | ||
97 | printascii(buff); | |
98 | } | |
99 | ||
100 | #else | |
101 | #define dbg(x...) do { } while (0) | |
102 | #endif |