51fe52229e
This patch modifies s3c24xx_serial_initconsole function to accept multiple platform UART information structures. This is required on platforms that have differences among the instances of UART ports. As an example, the FIFO sizes could be different for each UART instance and hence multiple platform UART information structures would be needed. This patch also modifies the s3c24xx_console_init macro since it wraps the call to the s3c24xx_serial_initconsole function. Signed-off-by: Thomas Abraham <thomas.ab@samsung.com> Signed-off-by: Ben Dooks <ben-linux@fluff.org>
121 lines
3 KiB
C
121 lines
3 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) 2003-2008 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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/* uart port features */
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unsigned int has_divslot:1;
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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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unsigned int pm_level;
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unsigned long baudclk_rate;
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unsigned int rx_irq;
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unsigned int tx_irq;
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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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#ifdef CONFIG_CPU_FREQ
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struct notifier_block freq_transition;
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#endif
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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 __devexit 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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struct s3c24xx_uart_info *uinfo[CONFIG_SERIAL_SAMSUNG_UARTS]; \
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int i; \
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\
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for (i = 0; i < CONFIG_SERIAL_SAMSUNG_UARTS; i++) \
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uinfo[i] = __inf; \
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return s3c24xx_serial_initconsole(__drv, uinfo); \
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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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