#include <asm/irq.h>
#include <linux/fcntl.h>
#include <linux/platform_device.h>
-#ifdef LIRC_ON_SA1100
-#include <asm/hardware.h>
-#ifdef CONFIG_SA1100_COLLIE
-#include <asm/arch/tc35143.h>
-#include <asm/ucb1200.h>
-#endif
-#endif
#include <linux/timer.h>
static void init_act220(void);
#endif
-/*** SA1100 ***/
-#ifdef LIRC_ON_SA1100
-struct sa1100_ser2_registers {
- /* HSSP control register */
- unsigned char hscr0;
- /* UART registers */
- unsigned char utcr0;
- unsigned char utcr1;
- unsigned char utcr2;
- unsigned char utcr3;
- unsigned char utcr4;
- unsigned char utdr;
- unsigned char utsr0;
- unsigned char utsr1;
-} sr;
-
-static int irq = IRQ_Ser2ICP;
-
-#define LIRC_ON_SA1100_TRANSMITTER_LATENCY 0
-
-/* pulse/space ratio of 50/50 */
-static unsigned long pulse_width = (13-LIRC_ON_SA1100_TRANSMITTER_LATENCY);
-/* 1000000/freq-pulse_width */
-static unsigned long space_width = (13-LIRC_ON_SA1100_TRANSMITTER_LATENCY);
-static unsigned int freq = 38000; /* modulation frequency */
-static unsigned int duty_cycle = 50; /* duty cycle of 50% */
-
-#endif
-
#define RBUF_LEN 1024
#define WBUF_LEN 1024
static int init_port(void);
static void drop_port(void);
-#ifdef LIRC_ON_SA1100
-static void on(void)
-{
- PPSR |= PPC_TXD2;
-}
-
-static void off(void)
-{
- PPSR &= ~PPC_TXD2;
-}
-#else
static inline unsigned int sinp(int offset)
{
return inb(io + offset);
{
outb(value, io + offset);
}
-#endif
#ifndef MAX_UDELAY_MS
#define MAX_UDELAY_US 5000
if (IS_ERR(tx_buf))
return PTR_ERR(tx_buf);
i = 0;
-#ifdef LIRC_ON_SA1100
- /* disable receiver */
- Ser2UTCR3 = 0;
-#endif
local_irq_save(flags);
while (1) {
if (i >= count)
i++;
}
local_irq_restore(flags);
-#ifdef LIRC_ON_SA1100
- off();
- udelay(1000); /* wait 1ms for IR diode to recover */
- Ser2UTCR3 = 0;
- /* clear status register to prevent unwanted interrupts */
- Ser2UTSR0 &= (UTSR0_RID | UTSR0_RBB | UTSR0_REB);
- /* enable receiver */
- Ser2UTCR3 = UTCR3_RXE|UTCR3_RIE;
-#endif
kfree(tx_buf);
return count;
}
u32 __user *uptr = (u32 __user *)arg;
int retval = 0;
u32 value = 0;
-#ifdef LIRC_ON_SA1100
-
- if (cmd == LIRC_GET_FEATURES)
- value = LIRC_CAN_SEND_PULSE |
- LIRC_CAN_SET_SEND_DUTY_CYCLE |
- LIRC_CAN_SET_SEND_CARRIER |
- LIRC_CAN_REC_MODE2;
- else if (cmd == LIRC_GET_SEND_MODE)
- value = LIRC_MODE_PULSE;
- else if (cmd == LIRC_GET_REC_MODE)
- value = LIRC_MODE_MODE2;
-#else
if (cmd == LIRC_GET_FEATURES)
value = LIRC_CAN_SEND_PULSE | LIRC_CAN_REC_MODE2;
else if (cmd == LIRC_GET_SEND_MODE)
value = LIRC_MODE_PULSE;
else if (cmd == LIRC_GET_REC_MODE)
value = LIRC_MODE_MODE2;
-#endif
switch (cmd) {
case LIRC_GET_FEATURES:
case LIRC_SET_REC_MODE:
retval = get_user(value, uptr);
break;
-#ifdef LIRC_ON_SA1100
- case LIRC_SET_SEND_DUTY_CYCLE:
- retval = get_user(value, uptr);
- if (retval)
- return retval;
- if (value <= 0 || value > 100)
- return -EINVAL;
- /* (value/100)*(1000000/freq) */
- duty_cycle = value;
- pulse_width = (unsigned long) duty_cycle*10000/freq;
- space_width = (unsigned long) 1000000L/freq-pulse_width;
- if (pulse_width >= LIRC_ON_SA1100_TRANSMITTER_LATENCY)
- pulse_width -= LIRC_ON_SA1100_TRANSMITTER_LATENCY;
- if (space_width >= LIRC_ON_SA1100_TRANSMITTER_LATENCY)
- space_width -= LIRC_ON_SA1100_TRANSMITTER_LATENCY;
- break;
- case LIRC_SET_SEND_CARRIER:
- retval = get_user(value, uptr);
- if (retval)
- return retval;
- if (value > 500000 || value < 20000)
- return -EINVAL;
- freq = value;
- pulse_width = (unsigned long) duty_cycle*10000/freq;
- space_width = (unsigned long) 1000000L/freq-pulse_width;
- if (pulse_width >= LIRC_ON_SA1100_TRANSMITTER_LATENCY)
- pulse_width -= LIRC_ON_SA1100_TRANSMITTER_LATENCY;
- if (space_width >= LIRC_ON_SA1100_TRANSMITTER_LATENCY)
- space_width -= LIRC_ON_SA1100_TRANSMITTER_LATENCY;
- break;
-#endif
default:
retval = -ENOIOCTLCMD;
/* avoid interference with interrupt */
spin_lock_irqsave(&timer_lock, flags);
if (last_value) {
-#ifndef LIRC_ON_SA1100
/* clear unread bits in UART and restart */
outb(UART_FCR_CLEAR_RCVR, io + UART_FCR);
-#endif
/* determine 'virtual' pulse end: */
pulse_end = delta(&last_tv, &last_intr_tv);
dprintk("timeout add %d for %lu usec\n", last_value, pulse_end);
unsigned char data;
struct timeval curr_tv;
static unsigned long deltv;
-#ifdef LIRC_ON_SA1100
- int status;
- static int n;
-
- status = Ser2UTSR0;
- /*
- * Deal with any receive errors first. The bytes in error may be
- * the only bytes in the receive FIFO, so we do this first.
- */
- while (status & UTSR0_EIF) {
- int bstat;
-
- if (debug) {
- dprintk("EIF\n");
- bstat = Ser2UTSR1;
-
- if (bstat & UTSR1_FRE)
- dprintk("frame error\n");
- if (bstat & UTSR1_ROR)
- dprintk("receive fifo overrun\n");
- if (bstat & UTSR1_PRE)
- dprintk("parity error\n");
- }
-
- bstat = Ser2UTDR;
- n++;
- status = Ser2UTSR0;
- }
-
- if (status & (UTSR0_RFS | UTSR0_RID)) {
- do_gettimeofday(&curr_tv);
- deltv = delta(&last_tv, &curr_tv);
- do {
- data = Ser2UTDR;
- dprintk("%d data: %u\n", n, (unsigned int) data);
- n++;
- } while (status & UTSR0_RID && /* do not empty fifo in order to
- * get UTSR0_RID in any case */
- Ser2UTSR1 & UTSR1_RNE); /* data ready */
-
- if (status&UTSR0_RID) {
- add_read_queue(0 , deltv - n * TIME_CONST); /*space*/
- add_read_queue(1, n * TIME_CONST); /*pulse*/
- n = 0;
- last_tv = curr_tv;
- }
- }
-
- if (status & UTSR0_TFS)
- pr_err("transmit fifo not full, shouldn't happen\n");
-
- /* We must clear certain bits. */
- status &= (UTSR0_RID | UTSR0_RBB | UTSR0_REB);
- if (status)
- Ser2UTSR0 = status;
-#else
unsigned long deltintrtv;
unsigned long flags;
int iir, lsr;
break;
}
}
-#endif
return IRQ_RETVAL(IRQ_HANDLED);
}
-#ifdef LIRC_ON_SA1100
-static void send_pulse(unsigned long length)
-{
- unsigned long k, delay;
- int flag;
-
- if (length == 0)
- return;
- /*
- * this won't give us the carrier frequency we really want
- * due to integer arithmetic, but we can accept this inaccuracy
- */
-
- for (k = flag = 0; k < length; k += delay, flag = !flag) {
- if (flag) {
- off();
- delay = space_width;
- } else {
- on();
- delay = pulse_width;
- }
- safe_udelay(delay);
- }
- off();
-}
-
-static void send_space(unsigned long length)
-{
- if (length == 0)
- return;
- off();
- safe_udelay(length);
-}
-#else
static void send_space(unsigned long len)
{
safe_udelay(len);
;
}
}
-#endif
-
-#ifdef CONFIG_SA1100_COLLIE
-static int sa1100_irda_set_power_collie(int state)
-{
- if (state) {
- /*
- * 0 - off
- * 1 - short range, lowest power
- * 2 - medium range, medium power
- * 3 - maximum range, high power
- */
- ucb1200_set_io_direction(TC35143_GPIO_IR_ON,
- TC35143_IODIR_OUTPUT);
- ucb1200_set_io(TC35143_GPIO_IR_ON, TC35143_IODAT_LOW);
- udelay(100);
- } else {
- /* OFF */
- ucb1200_set_io_direction(TC35143_GPIO_IR_ON,
- TC35143_IODIR_OUTPUT);
- ucb1200_set_io(TC35143_GPIO_IR_ON, TC35143_IODAT_HIGH);
- }
- return 0;
-}
-#endif
static int init_hardware(void)
{
spin_lock_irqsave(&hardware_lock, flags);
/* reset UART */
-#ifdef LIRC_ON_SA1100
-#ifdef CONFIG_SA1100_COLLIE
- sa1100_irda_set_power_collie(3); /* power on */
-#endif
- sr.hscr0 = Ser2HSCR0;
-
- sr.utcr0 = Ser2UTCR0;
- sr.utcr1 = Ser2UTCR1;
- sr.utcr2 = Ser2UTCR2;
- sr.utcr3 = Ser2UTCR3;
- sr.utcr4 = Ser2UTCR4;
-
- sr.utdr = Ser2UTDR;
- sr.utsr0 = Ser2UTSR0;
- sr.utsr1 = Ser2UTSR1;
-
- /* configure GPIO */
- /* output */
- PPDR |= PPC_TXD2;
- PSDR |= PPC_TXD2;
- /* set output to 0 */
- off();
-
- /* Enable HP-SIR modulation, and ensure that the port is disabled. */
- Ser2UTCR3 = 0;
- Ser2HSCR0 = sr.hscr0 & (~HSCR0_HSSP);
-
- /* clear status register to prevent unwanted interrupts */
- Ser2UTSR0 &= (UTSR0_RID | UTSR0_RBB | UTSR0_REB);
-
- /* 7N1 */
- Ser2UTCR0 = UTCR0_1StpBit|UTCR0_7BitData;
- /* 115200 */
- Ser2UTCR1 = 0;
- Ser2UTCR2 = 1;
- /* use HPSIR, 1.6 usec pulses */
- Ser2UTCR4 = UTCR4_HPSIR|UTCR4_Z1_6us;
-
- /* enable receiver, receive fifo interrupt */
- Ser2UTCR3 = UTCR3_RXE|UTCR3_RIE;
-
- /* clear status register to prevent unwanted interrupts */
- Ser2UTSR0 &= (UTSR0_RID | UTSR0_RBB | UTSR0_REB);
-
-#elif defined(LIRC_SIR_TEKRAM)
+#if defined(LIRC_SIR_TEKRAM)
/* disable FIFO */
soutp(UART_FCR,
UART_FCR_CLEAR_RCVR|
spin_lock_irqsave(&hardware_lock, flags);
-#ifdef LIRC_ON_SA1100
- Ser2UTCR3 = 0;
-
- Ser2UTCR0 = sr.utcr0;
- Ser2UTCR1 = sr.utcr1;
- Ser2UTCR2 = sr.utcr2;
- Ser2UTCR4 = sr.utcr4;
- Ser2UTCR3 = sr.utcr3;
-
- Ser2HSCR0 = sr.hscr0;
-#ifdef CONFIG_SA1100_COLLIE
- sa1100_irda_set_power_collie(0); /* power off */
-#endif
-#else
/* turn off interrupts */
outb(0, io + UART_IER);
-#endif
+
spin_unlock_irqrestore(&hardware_lock, flags);
}
int retval;
/* get I/O port access and IRQ line */
-#ifndef LIRC_ON_SA1100
if (request_region(io, 8, LIRC_DRIVER_NAME) == NULL) {
pr_err("i/o port 0x%.4x already in use.\n", io);
return -EBUSY;
}
-#endif
retval = request_irq(irq, sir_interrupt, 0,
LIRC_DRIVER_NAME, NULL);
if (retval < 0) {
-# ifndef LIRC_ON_SA1100
release_region(io, 8);
-# endif
pr_err("IRQ %d already in use.\n", irq);
return retval;
}
-#ifndef LIRC_ON_SA1100
pr_info("I/O port 0x%.4x, IRQ %d.\n", io, irq);
-#endif
init_timer(&timerlist);
timerlist.function = sir_timeout;
{
free_irq(irq, NULL);
del_timer_sync(&timerlist);
-#ifndef LIRC_ON_SA1100
release_region(io, 8);
-#endif
}
#ifdef LIRC_SIR_ACTISYS_ACT200L
#ifdef LIRC_SIR_TEKRAM
MODULE_DESCRIPTION("Infrared receiver driver for Tekram Irmate 210");
MODULE_AUTHOR("Christoph Bartelmus");
-#elif defined(LIRC_ON_SA1100)
-MODULE_DESCRIPTION("LIRC driver for StrongARM SA1100 embedded microprocessor");
-MODULE_AUTHOR("Christoph Bartelmus");
#elif defined(LIRC_SIR_ACTISYS_ACT200L)
MODULE_DESCRIPTION("LIRC driver for Actisys Act200L");
MODULE_AUTHOR("Karl Bongers");
#endif
MODULE_LICENSE("GPL");
-#ifdef LIRC_ON_SA1100
-module_param(irq, int, S_IRUGO);
-MODULE_PARM_DESC(irq, "Interrupt (16)");
-#else
module_param(io, int, S_IRUGO);
MODULE_PARM_DESC(io, "I/O address base (0x3f8 or 0x2f8)");
module_param(threshold, int, S_IRUGO);
MODULE_PARM_DESC(threshold, "space detection threshold (3)");
-#endif
module_param(debug, bool, S_IRUGO | S_IWUSR);
MODULE_PARM_DESC(debug, "Enable debugging messages");
projects / users / hch / dma-mapping.git / commitdiff