diff --git a/drivers/staging/media/lirc/lirc_sir.c b/drivers/staging/media/lirc/lirc_sir.c index e31cbb81f059..79da3adf1bd5 100644 --- a/drivers/staging/media/lirc/lirc_sir.c +++ b/drivers/staging/media/lirc/lirc_sir.c @@ -55,13 +55,6 @@ #include #include #include -#ifdef LIRC_ON_SA1100 -#include -#ifdef CONFIG_SA1100_COLLIE -#include -#include -#endif -#endif #include @@ -94,35 +87,6 @@ static void init_act200(void); 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 @@ -205,17 +169,6 @@ static void drop_hardware(void); 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); @@ -225,7 +178,6 @@ static inline void soutp(int offset, int value) { outb(value, io + offset); } -#endif #ifndef MAX_UDELAY_MS #define MAX_UDELAY_US 5000 @@ -305,10 +257,6 @@ static ssize_t lirc_write(struct file *file, const char __user *buf, size_t n, 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) @@ -323,15 +271,6 @@ static ssize_t lirc_write(struct file *file, const char __user *buf, size_t n, 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; } @@ -341,25 +280,12 @@ static long lirc_ioctl(struct file *filep, unsigned int cmd, unsigned long arg) 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: @@ -372,37 +298,6 @@ static long lirc_ioctl(struct file *filep, unsigned int cmd, unsigned long arg) 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; @@ -539,10 +434,8 @@ static void sir_timeout(unsigned long data) /* 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); @@ -558,62 +451,6 @@ static irqreturn_t sir_interrupt(int irq, void *dev_id) 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; @@ -698,44 +535,9 @@ static irqreturn_t sir_interrupt(int irq, void *dev_id) 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); @@ -755,31 +557,6 @@ static void send_pulse(unsigned long 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) { @@ -787,51 +564,7 @@ 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| @@ -927,23 +660,9 @@ static void drop_hardware(void) 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); } @@ -954,24 +673,18 @@ static int init_port(void) 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; @@ -984,9 +697,7 @@ static void drop_port(void) { free_irq(irq, NULL); del_timer_sync(&timerlist); -#ifndef LIRC_ON_SA1100 release_region(io, 8); -#endif } #ifdef LIRC_SIR_ACTISYS_ACT200L @@ -1284,9 +995,6 @@ module_exit(lirc_sir_exit); #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"); @@ -1299,10 +1007,6 @@ MODULE_AUTHOR("Milan Pikula"); #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)"); @@ -1311,7 +1015,6 @@ MODULE_PARM_DESC(irq, "Interrupt (4 or 3)"); 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");