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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 | /* * Driver for Samsung SoC onboard UARTs. * * Ben Dooks, Copyright (c) 2003-2008 Simtec Electronics * http://armlinux.simtec.co.uk/ * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License version 2 as * published by the Free Software Foundation. */ struct s3c24xx_uart_info { char *name; unsigned int type; unsigned int fifosize; unsigned long rx_fifomask; unsigned long rx_fifoshift; unsigned long rx_fifofull; unsigned long tx_fifomask; unsigned long tx_fifoshift; unsigned long tx_fifofull; /* uart port features */ unsigned int has_divslot:1; /* clock source control */ int (*get_clksrc)(struct uart_port *, struct s3c24xx_uart_clksrc *clk); int (*set_clksrc)(struct uart_port *, struct s3c24xx_uart_clksrc *clk); /* uart controls */ int (*reset_port)(struct uart_port *, struct s3c2410_uartcfg *); }; struct s3c24xx_uart_port { unsigned char rx_claimed; unsigned char tx_claimed; unsigned int pm_level; unsigned long baudclk_rate; unsigned int rx_irq; unsigned int tx_irq; struct s3c24xx_uart_info *info; struct s3c24xx_uart_clksrc *clksrc; struct clk *clk; struct clk *baudclk; struct uart_port port; #ifdef CONFIG_CPU_FREQ struct notifier_block freq_transition; #endif }; /* conversion functions */ #define s3c24xx_dev_to_port(__dev) (struct uart_port *)dev_get_drvdata(__dev) #define s3c24xx_dev_to_cfg(__dev) (struct s3c2410_uartcfg *)((__dev)->platform_data) /* register access controls */ #define portaddr(port, reg) ((port)->membase + (reg)) #define rd_regb(port, reg) (__raw_readb(portaddr(port, reg))) #define rd_regl(port, reg) (__raw_readl(portaddr(port, reg))) #define wr_regb(port, reg, val) __raw_writeb(val, portaddr(port, reg)) #define wr_regl(port, reg, val) __raw_writel(val, portaddr(port, reg)) extern int s3c24xx_serial_probe(struct platform_device *dev, struct s3c24xx_uart_info *uart); extern int __devexit s3c24xx_serial_remove(struct platform_device *dev); extern int s3c24xx_serial_initconsole(struct platform_driver *drv, struct s3c24xx_uart_info **uart); extern int s3c24xx_serial_init(struct platform_driver *drv, struct s3c24xx_uart_info *info); #ifdef CONFIG_SERIAL_SAMSUNG_CONSOLE #define s3c24xx_console_init(__drv, __inf) \ static int __init s3c_serial_console_init(void) \ { \ struct s3c24xx_uart_info *uinfo[CONFIG_SERIAL_SAMSUNG_UARTS]; \ int i; \ \ for (i = 0; i < CONFIG_SERIAL_SAMSUNG_UARTS; i++) \ uinfo[i] = __inf; \ return s3c24xx_serial_initconsole(__drv, uinfo); \ } \ \ console_initcall(s3c_serial_console_init) #else #define s3c24xx_console_init(drv, inf) extern void no_console(void) #endif #ifdef CONFIG_SERIAL_SAMSUNG_DEBUG extern void printascii(const char *); static void dbg(const char *fmt, ...) { va_list va; char buff[256]; va_start(va, fmt); vsprintf(buff, fmt, va); va_end(va); printascii(buff); } #else #define dbg(x...) do { } while (0) #endif |