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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; | |
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36 | unsigned int pm_level; |
37 | unsigned long baudclk_rate; | |
b497549a | 38 | |
b73c289c BD |
39 | unsigned int rx_irq; |
40 | unsigned int tx_irq; | |
41 | ||
b497549a BD |
42 | struct s3c24xx_uart_info *info; |
43 | struct s3c24xx_uart_clksrc *clksrc; | |
44 | struct clk *clk; | |
45 | struct clk *baudclk; | |
46 | struct uart_port port; | |
30555476 BD |
47 | |
48 | #ifdef CONFIG_CPU_FREQ | |
49 | struct notifier_block freq_transition; | |
50 | #endif | |
b497549a BD |
51 | }; |
52 | ||
53 | /* conversion functions */ | |
54 | ||
55 | #define s3c24xx_dev_to_port(__dev) (struct uart_port *)dev_get_drvdata(__dev) | |
56 | #define s3c24xx_dev_to_cfg(__dev) (struct s3c2410_uartcfg *)((__dev)->platform_data) | |
57 | ||
58 | /* register access controls */ | |
59 | ||
60 | #define portaddr(port, reg) ((port)->membase + (reg)) | |
61 | ||
62 | #define rd_regb(port, reg) (__raw_readb(portaddr(port, reg))) | |
63 | #define rd_regl(port, reg) (__raw_readl(portaddr(port, reg))) | |
64 | ||
65 | #define wr_regb(port, reg, val) __raw_writeb(val, portaddr(port, reg)) | |
66 | #define wr_regl(port, reg, val) __raw_writel(val, portaddr(port, reg)) | |
67 | ||
68 | extern int s3c24xx_serial_probe(struct platform_device *dev, | |
69 | struct s3c24xx_uart_info *uart); | |
70 | ||
71 | extern int s3c24xx_serial_remove(struct platform_device *dev); | |
72 | ||
73 | extern int s3c24xx_serial_initconsole(struct platform_driver *drv, | |
74 | struct s3c24xx_uart_info *uart); | |
75 | ||
76 | extern int s3c24xx_serial_init(struct platform_driver *drv, | |
77 | struct s3c24xx_uart_info *info); | |
78 | ||
79 | #ifdef CONFIG_SERIAL_SAMSUNG_CONSOLE | |
80 | ||
81 | #define s3c24xx_console_init(__drv, __inf) \ | |
82 | static int __init s3c_serial_console_init(void) \ | |
83 | { \ | |
84 | return s3c24xx_serial_initconsole(__drv, __inf); \ | |
85 | } \ | |
86 | \ | |
87 | console_initcall(s3c_serial_console_init) | |
88 | ||
89 | #else | |
90 | #define s3c24xx_console_init(drv, inf) extern void no_console(void) | |
91 | #endif | |
92 | ||
93 | #ifdef CONFIG_SERIAL_SAMSUNG_DEBUG | |
94 | ||
95 | extern void printascii(const char *); | |
96 | ||
97 | static void dbg(const char *fmt, ...) | |
98 | { | |
99 | va_list va; | |
100 | char buff[256]; | |
101 | ||
102 | va_start(va, fmt); | |
103 | vsprintf(buff, fmt, va); | |
104 | va_end(va); | |
105 | ||
106 | printascii(buff); | |
107 | } | |
108 | ||
109 | #else | |
110 | #define dbg(x...) do { } while (0) | |
111 | #endif |