diff options
Diffstat (limited to 'drivers/serial/samsung.h')
-rw-r--r-- | drivers/serial/samsung.h | 102 |
1 files changed, 102 insertions, 0 deletions
diff --git a/drivers/serial/samsung.h b/drivers/serial/samsung.h new file mode 100644 index 00000000000..5c92ebbe7d9 --- /dev/null +++ b/drivers/serial/samsung.h | |||
@@ -0,0 +1,102 @@ | |||
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 | ||