patch-2.4.13 linux/arch/arm/mach-sa1100/bitsy.c

• Lines: 176
• Date: Wed Dec 31 16:00:00 1969
• Orig file: v2.4.12/linux/arch/arm/mach-sa1100/bitsy.c
• Orig date: Mon Aug 27 12:41:38 2001

diff -u --recursive --new-file v2.4.12/linux/arch/arm/mach-sa1100/bitsy.c linux/arch/arm/mach-sa1100/bitsy.c
@@ -1,175 +0,0 @@
-/*
- * linux/arch/arm/mach-sa1100/bitsy.c
- */
-
-#include <linux/config.h>
-#include <linux/module.h>
-#include <linux/init.h>
-#include <linux/kernel.h>
-#include <linux/tty.h>
-#include <linux/sched.h>
-
-#include <asm/irq.h>
-#include <asm/hardware.h>
-#include <asm/setup.h>
-
-#include <asm/mach/arch.h>
-#include <asm/mach/map.h>
-#include <asm/mach/serial_sa1100.h>
-#include <linux/serial_core.h>
-
-#include "generic.h"
-
-
-/*
- * Bitsy has extended, write-only memory-mapped GPIO's
- */
-
-static int bitsy_egpio = EGPIO_BITSY_RS232_ON;
-
-void clr_bitsy_egpio(unsigned long x)
-{
-	bitsy_egpio &= ~x;
-	BITSY_EGPIO = bitsy_egpio;
-}
-
-void set_bitsy_egpio(unsigned long x)
-{
-	bitsy_egpio |= x;
-	BITSY_EGPIO = bitsy_egpio;
-}
-
-EXPORT_SYMBOL(clr_bitsy_egpio);
-EXPORT_SYMBOL(set_bitsy_egpio);
-
-
-/*
- * low-level UART features
- */
-
-static void bitsy_uart_set_mctrl(struct uart_port *port, u_int mctrl)
-{
-	if (port->mapbase == _Ser3UTCR0) {
-		if (mctrl & TIOCM_RTS)
-			GPCR = GPIO_BITSY_COM_RTS;
-		else
-			GPSR = GPIO_BITSY_COM_RTS;
-	}
-}
-
-static int bitsy_uart_get_mctrl(struct uart_port *port)
-{
-	int ret = TIOCM_CD | TIOCM_CTS | TIOCM_DSR;
-
-	if (port->mapbase == _Ser3UTCR0) {
-		int gplr = GPLR;
-		if (gplr & GPIO_BITSY_COM_DCD)
-			ret &= ~TIOCM_CD;
-		if (gplr & GPIO_BITSY_COM_CTS)
-			ret &= ~TIOCM_CTS;
-	}
-
-	return ret;
-}
-
-static void bitsy_dcd_intr(int irq, void *dev_id, struct pt_regs *regs)
-{
-	struct uart_info *info = dev_id;
-	/* Note: should only call this if something has changed */
-	uart_handle_dcd_change(info, GPLR & GPIO_BITSY_COM_DCD);
-}
-
-static void bitsy_cts_intr(int irq, void *dev_id, struct pt_regs *regs)
-{
-	struct uart_info *info = dev_id;
-	/* Note: should only call this if something has changed */
-	uart_handle_cts_change(info, GPLR & GPIO_BITSY_COM_CTS);
-}
-
-static void bitsy_uart_pm(struct uart_port *port, u_int state, u_int oldstate)
-{
-	if (port->mapbase == _Ser2UTCR0) {
-		if (state == 0) {
-			set_bitsy_egpio(EGPIO_BITSY_IR_ON);
-		} else {
-			clr_bitsy_egpio(EGPIO_BITSY_IR_ON);
-		}
-	} else if (port->mapbase == _Ser3UTCR0) {
-		if (state == 0) {
-			set_bitsy_egpio(EGPIO_BITSY_RS232_ON);
-		} else {
-			clr_bitsy_egpio(EGPIO_BITSY_RS232_ON);
-		}
-	}
-}
-
-static int bitsy_uart_open(struct uart_port *port, struct uart_info *info)
-{
-	int ret = 0;
-
-	if (port->mapbase == _Ser2UTCR0) {
-		Ser2UTCR4 = UTCR4_HSE;
-		Ser2HSCR0 = 0;
-		Ser2HSSR0 = HSSR0_EIF | HSSR0_TUR |
-			    HSSR0_RAB | HSSR0_FRE;
-	} else if (port->mapbase == _Ser3UTCR0) {
-		GPDR &= ~(GPIO_BITSY_COM_DCD|GPIO_BITSY_COM_CTS);
-		GPDR |= GPIO_BITSY_COM_RTS;
-		set_GPIO_IRQ_edge(GPIO_BITSY_COM_DCD|GPIO_BITSY_COM_CTS,
-				  GPIO_BOTH_EDGES);
-
-		ret = request_irq(IRQ_GPIO_BITSY_COM_DCD, bitsy_dcd_intr,
-				  0, "RS232 DCD", info);
-		if (ret)
-			return ret;
-
-		ret = request_irq(IRQ_GPIO_BITSY_COM_CTS, bitsy_cts_intr,
-				  0, "RS232 CTS", info);
-		if (ret)
-			free_irq(IRQ_GPIO_BITSY_COM_DCD, info);
-	}
-	return ret;
-}
-
-static void bitsy_uart_close(struct uart_port *port, struct uart_info *info)
-{
-	if (port->mapbase == _Ser3UTCR0) {
-		free_irq(IRQ_GPIO_BITSY_COM_DCD, info);
-		free_irq(IRQ_GPIO_BITSY_COM_CTS, info);
-	}
-}
-
-static struct sa1100_port_fns bitsy_port_fns __initdata = {
-	set_mctrl:	bitsy_uart_set_mctrl,
-	get_mctrl:	bitsy_uart_get_mctrl,
-	pm:		bitsy_uart_pm,
-	open:		bitsy_uart_open,
-	close:		bitsy_uart_close,
-};
-
-static struct map_desc bitsy_io_desc[] __initdata = {
- /* virtual     physical    length      domain     r  w  c  b */
-  { 0xe8000000, 0x00000000, 0x02000000, DOMAIN_IO, 1, 1, 0, 0 }, /* Flash bank 0 */
-  { 0xf0000000, 0x49000000, 0x00100000, DOMAIN_IO, 0, 1, 0, 0 }, /* EGPIO 0 */
-  { 0xf1000000, 0x10000000, 0x02000000, DOMAIN_IO, 1, 1, 0, 0 }, /* static memory bank 2 */
-  { 0xf3000000, 0x40000000, 0x02000000, DOMAIN_IO, 1, 1, 0, 0 }, /* static memory bank 4 */
-  LAST_DESC
-};
-
-static void __init bitsy_map_io(void)
-{
-	sa1100_map_io();
-	iotable_init(bitsy_io_desc);
-
-	sa1100_register_uart_fns(&bitsy_port_fns);
-	sa1100_register_uart(0, 3);
-	sa1100_register_uart(1, 1); /* isn't this one driven elsewhere? */
-	sa1100_register_uart(2, 2);
-}
-
-MACHINE_START(BITSY, "Compaq iPAQ")
-	BOOT_MEM(0xc0000000, 0x80000000, 0xf8000000)
-	BOOT_PARAMS(0xc0000100)
-	MAPIO(bitsy_map_io)
-	INITIRQ(sa1100_init_irq)
-MACHINE_END