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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 | ||
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24 | /* uart port features */ |
25 | ||
26 | unsigned int has_divslot:1; | |
27 | ||
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28 | /* clock source control */ |
29 | ||
30 | int (*get_clksrc)(struct uart_port *, struct s3c24xx_uart_clksrc *clk); | |
31 | int (*set_clksrc)(struct uart_port *, struct s3c24xx_uart_clksrc *clk); | |
32 | ||
33 | /* uart controls */ | |
34 | int (*reset_port)(struct uart_port *, struct s3c2410_uartcfg *); | |
35 | }; | |
36 | ||
37 | struct s3c24xx_uart_port { | |
38 | unsigned char rx_claimed; | |
39 | unsigned char tx_claimed; | |
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40 | unsigned int pm_level; |
41 | unsigned long baudclk_rate; | |
b497549a | 42 | |
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43 | unsigned int rx_irq; |
44 | unsigned int tx_irq; | |
45 | ||
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46 | struct s3c24xx_uart_info *info; |
47 | struct s3c24xx_uart_clksrc *clksrc; | |
48 | struct clk *clk; | |
49 | struct clk *baudclk; | |
50 | struct uart_port port; | |
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51 | |
52 | #ifdef CONFIG_CPU_FREQ | |
53 | struct notifier_block freq_transition; | |
54 | #endif | |
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55 | }; |
56 | ||
57 | /* conversion functions */ | |
58 | ||
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) | |
61 | ||
62 | /* register access controls */ | |
63 | ||
64 | #define portaddr(port, reg) ((port)->membase + (reg)) | |
65 | ||
66 | #define rd_regb(port, reg) (__raw_readb(portaddr(port, reg))) | |
67 | #define rd_regl(port, reg) (__raw_readl(portaddr(port, reg))) | |
68 | ||
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)) | |
71 | ||
72 | extern int s3c24xx_serial_probe(struct platform_device *dev, | |
73 | struct s3c24xx_uart_info *uart); | |
74 | ||
90ceb964 | 75 | extern int __devexit s3c24xx_serial_remove(struct platform_device *dev); |
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76 | |
77 | extern int s3c24xx_serial_initconsole(struct platform_driver *drv, | |
78 | struct s3c24xx_uart_info *uart); | |
79 | ||
80 | extern int s3c24xx_serial_init(struct platform_driver *drv, | |
81 | struct s3c24xx_uart_info *info); | |
82 | ||
83 | #ifdef CONFIG_SERIAL_SAMSUNG_CONSOLE | |
84 | ||
85 | #define s3c24xx_console_init(__drv, __inf) \ | |
86 | static int __init s3c_serial_console_init(void) \ | |
87 | { \ | |
88 | return s3c24xx_serial_initconsole(__drv, __inf); \ | |
89 | } \ | |
90 | \ | |
91 | console_initcall(s3c_serial_console_init) | |
92 | ||
93 | #else | |
94 | #define s3c24xx_console_init(drv, inf) extern void no_console(void) | |
95 | #endif | |
96 | ||
97 | #ifdef CONFIG_SERIAL_SAMSUNG_DEBUG | |
98 | ||
99 | extern void printascii(const char *); | |
100 | ||
101 | static void dbg(const char *fmt, ...) | |
102 | { | |
103 | va_list va; | |
104 | char buff[256]; | |
105 | ||
106 | va_start(va, fmt); | |
107 | vsprintf(buff, fmt, va); | |
108 | va_end(va); | |
109 | ||
110 | printascii(buff); | |
111 | } | |
112 | ||
113 | #else | |
114 | #define dbg(x...) do { } while (0) | |
115 | #endif |