b497549a03
The S3C2410 serial driver in drivers/serial/s3c2410.c has been growing bigger with the addition of more variants of this hardware with the growing Samsung SoCs range. As such, it would be easier to split this code up into a core and per-cpu drivers to make driver addition easier, and the core smaller. Signed-off-by: Ben Dooks <ben-linux@fluff.org>
102 lines
2.6 KiB
C
102 lines
2.6 KiB
C
/* linux/drivers/serial/samsung.h
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*
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* Driver for Samsung SoC onboard UARTs.
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*
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* Ben Dooks, Copyright (c) 2003-2005,2008 Simtec Electronics
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* http://armlinux.simtec.co.uk/
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*/
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struct s3c24xx_uart_info {
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char *name;
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unsigned int type;
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unsigned int fifosize;
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unsigned long rx_fifomask;
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unsigned long rx_fifoshift;
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unsigned long rx_fifofull;
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unsigned long tx_fifomask;
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unsigned long tx_fifoshift;
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unsigned long tx_fifofull;
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/* clock source control */
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int (*get_clksrc)(struct uart_port *, struct s3c24xx_uart_clksrc *clk);
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int (*set_clksrc)(struct uart_port *, struct s3c24xx_uart_clksrc *clk);
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/* uart controls */
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int (*reset_port)(struct uart_port *, struct s3c2410_uartcfg *);
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};
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struct s3c24xx_uart_port {
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unsigned char rx_claimed;
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unsigned char tx_claimed;
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struct s3c24xx_uart_info *info;
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struct s3c24xx_uart_clksrc *clksrc;
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struct clk *clk;
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struct clk *baudclk;
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struct uart_port port;
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};
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/* conversion functions */
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#define s3c24xx_dev_to_port(__dev) (struct uart_port *)dev_get_drvdata(__dev)
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#define s3c24xx_dev_to_cfg(__dev) (struct s3c2410_uartcfg *)((__dev)->platform_data)
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/* register access controls */
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#define portaddr(port, reg) ((port)->membase + (reg))
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#define rd_regb(port, reg) (__raw_readb(portaddr(port, reg)))
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#define rd_regl(port, reg) (__raw_readl(portaddr(port, reg)))
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#define wr_regb(port, reg, val) __raw_writeb(val, portaddr(port, reg))
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#define wr_regl(port, reg, val) __raw_writel(val, portaddr(port, reg))
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extern int s3c24xx_serial_probe(struct platform_device *dev,
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struct s3c24xx_uart_info *uart);
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extern int s3c24xx_serial_remove(struct platform_device *dev);
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extern int s3c24xx_serial_initconsole(struct platform_driver *drv,
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struct s3c24xx_uart_info *uart);
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extern int s3c24xx_serial_init(struct platform_driver *drv,
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struct s3c24xx_uart_info *info);
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#ifdef CONFIG_SERIAL_SAMSUNG_CONSOLE
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#define s3c24xx_console_init(__drv, __inf) \
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static int __init s3c_serial_console_init(void) \
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{ \
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return s3c24xx_serial_initconsole(__drv, __inf); \
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} \
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\
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console_initcall(s3c_serial_console_init)
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#else
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#define s3c24xx_console_init(drv, inf) extern void no_console(void)
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#endif
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#ifdef CONFIG_SERIAL_SAMSUNG_DEBUG
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extern void printascii(const char *);
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static void dbg(const char *fmt, ...)
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{
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va_list va;
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char buff[256];
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va_start(va, fmt);
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vsprintf(buff, fmt, va);
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va_end(va);
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printascii(buff);
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}
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#else
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#define dbg(x...) do { } while (0)
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#endif
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