projects / mirror_ubuntu-bionic-kernel.git / blame
| Commit | Line | Data |
|---|---|---|
| b497549a BD |
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; | |
| 30555476 BD |
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 |