123 lines
3.2 KiB
C
Executable File
123 lines
3.2 KiB
C
Executable File
#ifndef __SAMSUNG_H
|
|
#define __SAMSUNG_H
|
|
|
|
/*
|
|
* 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.
|
|
*/
|
|
|
|
#include <linux/pm_qos.h>
|
|
|
|
#define S3C24XX_UART_PORT_RESUME 0x0
|
|
#define S3C24XX_UART_PORT_SUSPEND 0x3
|
|
#define S3C24XX_UART_PORT_LPM 0x5
|
|
|
|
#define S3C24XX_SERIAL_CTRL_NUM 0x4
|
|
#define S3C24XX_SERIAL_BUAD_NUM 0x2
|
|
|
|
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;
|
|
unsigned int def_clk_sel;
|
|
unsigned long num_clks;
|
|
unsigned long clksel_mask;
|
|
unsigned long clksel_shift;
|
|
|
|
/* uart port features */
|
|
|
|
unsigned int has_divslot:1;
|
|
|
|
/* uart controls */
|
|
int (*reset_port)(struct uart_port *, struct s3c2410_uartcfg *);
|
|
};
|
|
|
|
struct s3c24xx_serial_drv_data {
|
|
struct s3c24xx_uart_info *info;
|
|
struct s3c2410_uartcfg *def_cfg;
|
|
unsigned int fifosize[CONFIG_SERIAL_SAMSUNG_UARTS];
|
|
};
|
|
|
|
struct uart_local_buf {
|
|
unsigned char *buffer;
|
|
unsigned int size;
|
|
unsigned int index;
|
|
};
|
|
|
|
struct s3c24xx_uart_port {
|
|
struct list_head node;
|
|
unsigned char rx_claimed;
|
|
unsigned char tx_claimed;
|
|
unsigned long baudclk_rate;
|
|
|
|
unsigned int rx_irq;
|
|
unsigned int tx_irq;
|
|
|
|
int check_separated_clk;
|
|
unsigned int src_clk_rate;
|
|
struct s3c24xx_uart_info *info;
|
|
struct clk *clk;
|
|
struct clk *separated_clk;
|
|
struct clk *baudclk;
|
|
struct uart_port port;
|
|
struct s3c24xx_serial_drv_data *drv_data;
|
|
|
|
u32 uart_irq_affinity;
|
|
s32 mif_qos_val;
|
|
s32 cpu_qos_val;
|
|
u32 use_default_irq;
|
|
unsigned long qos_timeout;
|
|
unsigned int usi_v2;
|
|
struct pinctrl_state *uart_pinctrl_rts;
|
|
struct pinctrl_state *uart_pinctrl_default;
|
|
struct pinctrl *default_uart_pinctrl;
|
|
unsigned int rts_control;
|
|
|
|
/* reference to platform data */
|
|
struct s3c2410_uartcfg *cfg;
|
|
|
|
struct platform_device *pdev;
|
|
|
|
struct pm_qos_request s3c24xx_uart_mif_qos;
|
|
struct pm_qos_request s3c24xx_uart_cpu_qos;
|
|
struct delayed_work qos_work;
|
|
|
|
unsigned int in_band_wakeup;
|
|
unsigned int dbg_mode;
|
|
|
|
unsigned int uart_logging;
|
|
struct uart_local_buf uart_local_buf;
|
|
};
|
|
|
|
/* conversion functions */
|
|
|
|
#define s3c24xx_dev_to_port(__dev) dev_get_drvdata(__dev)
|
|
|
|
/* register access controls */
|
|
|
|
#define portaddr(port, reg) ((port)->membase + (reg))
|
|
#define portaddrl(port, reg) \
|
|
((unsigned long *)(unsigned long)((port)->membase + (reg)))
|
|
|
|
#define rd_regb(port, reg) (readb_relaxed(portaddr(port, reg)))
|
|
#define rd_regl(port, reg) (readl_relaxed(portaddr(port, reg)))
|
|
|
|
#define wr_regb(port, reg, val) writeb_relaxed(val, portaddr(port, reg))
|
|
#define wr_regl(port, reg, val) writel_relaxed(val, portaddr(port, reg))
|
|
static void uart_copy_to_local_buf(int dir, struct uart_local_buf *local_buf, unsigned char *trace_buf, int len);
|
|
#define SS_UART_LOG(dir, local_buf, trace_buf) uart_copy_to_local_buf(dir, local_buf, trace_buf, sizeof(trace_buf))
|
|
|
|
#endif
|