diff options
Diffstat (limited to 'drivers/staging/media/lirc/lirc_sir.c')
| -rw-r--r-- | drivers/staging/media/lirc/lirc_sir.c | 839 |
1 files changed, 0 insertions, 839 deletions
diff --git a/drivers/staging/media/lirc/lirc_sir.c b/drivers/staging/media/lirc/lirc_sir.c deleted file mode 100644 index e498ae8..0000000 --- a/drivers/staging/media/lirc/lirc_sir.c +++ /dev/null @@ -1,839 +0,0 @@ -/* - * LIRC SIR driver, (C) 2000 Milan Pikula <www@fornax.sk> - * - * sir_ir - Device driver for use with SIR (serial infra red) - * mode of IrDA on many notebooks. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA - * - * - * 2000/09/16 Frank Przybylski <mail@frankprzybylski.de> : - * added timeout and relaxed pulse detection, removed gap bug - * - * 2000/12/15 Christoph Bartelmus <lirc@bartelmus.de> : - * added support for Tekram Irmate 210 (sending does not work yet, - * kind of disappointing that nobody was able to implement that - * before), - * major clean-up - * - * 2001/02/27 Christoph Bartelmus <lirc@bartelmus.de> : - * added support for StrongARM SA1100 embedded microprocessor - * parts cut'n'pasted from sa1100_ir.c (C) 2000 Russell King - */ - -#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt - -#include <linux/module.h> -#include <linux/sched/signal.h> -#include <linux/errno.h> -#include <linux/signal.h> -#include <linux/fs.h> -#include <linux/interrupt.h> -#include <linux/ioport.h> -#include <linux/kernel.h> -#include <linux/serial_reg.h> -#include <linux/ktime.h> -#include <linux/string.h> -#include <linux/types.h> -#include <linux/wait.h> -#include <linux/mm.h> -#include <linux/delay.h> -#include <linux/poll.h> -#include <linux/io.h> -#include <asm/irq.h> -#include <linux/fcntl.h> -#include <linux/platform_device.h> - -#include <linux/timer.h> - -#include <media/rc-core.h> - -/* SECTION: Definitions */ - -/*** Tekram dongle ***/ -#ifdef LIRC_SIR_TEKRAM -/* stolen from kernel source */ -/* definitions for Tekram dongle */ -#define TEKRAM_115200 0x00 -#define TEKRAM_57600 0x01 -#define TEKRAM_38400 0x02 -#define TEKRAM_19200 0x03 -#define TEKRAM_9600 0x04 -#define TEKRAM_2400 0x08 - -#define TEKRAM_PW 0x10 /* Pulse select bit */ - -/* 10bit * 1s/115200bit in milliseconds = 87ms*/ -#define TIME_CONST (10000000ul/115200ul) - -#endif - -#ifdef LIRC_SIR_ACTISYS_ACT200L -static void init_act200(void); -#elif defined(LIRC_SIR_ACTISYS_ACT220L) -static void init_act220(void); -#endif - -#define PULSE '[' - -#ifndef LIRC_SIR_TEKRAM -/* 9bit * 1s/115200bit in milli seconds = 78.125ms*/ -#define TIME_CONST (9000000ul/115200ul) -#endif - - -/* timeout for sequences in jiffies (=5/100s), must be longer than TIME_CONST */ -#define SIR_TIMEOUT (HZ*5/100) - -#ifndef LIRC_ON_SA1100 -#ifndef LIRC_IRQ -#define LIRC_IRQ 4 -#endif -#ifndef LIRC_PORT -/* for external dongles, default to com1 */ -#if defined(LIRC_SIR_ACTISYS_ACT200L) || \ - defined(LIRC_SIR_ACTISYS_ACT220L) || \ - defined(LIRC_SIR_TEKRAM) -#define LIRC_PORT 0x3f8 -#else -/* onboard sir ports are typically com3 */ -#define LIRC_PORT 0x3e8 -#endif -#endif - -static int io = LIRC_PORT; -static int irq = LIRC_IRQ; -static int threshold = 3; -#endif - -static DEFINE_SPINLOCK(timer_lock); -static struct timer_list timerlist; -/* time of last signal change detected */ -static ktime_t last; -/* time of last UART data ready interrupt */ -static ktime_t last_intr_time; -static int last_value; -static struct rc_dev *rcdev; - -static struct platform_device *sir_ir_dev; - -static DEFINE_SPINLOCK(hardware_lock); - -static bool debug; - -/* SECTION: Prototypes */ - -/* Communication with user-space */ -static void add_read_queue(int flag, unsigned long val); -static int init_chrdev(void); -/* Hardware */ -static irqreturn_t sir_interrupt(int irq, void *dev_id); -static void send_space(unsigned long len); -static void send_pulse(unsigned long len); -static int init_hardware(void); -static void drop_hardware(void); -/* Initialisation */ -static int init_port(void); -static void drop_port(void); - -static inline unsigned int sinp(int offset) -{ - return inb(io + offset); -} - -static inline void soutp(int offset, int value) -{ - outb(value, io + offset); -} - -#ifndef MAX_UDELAY_MS -#define MAX_UDELAY_US 5000 -#else -#define MAX_UDELAY_US (MAX_UDELAY_MS*1000) -#endif - -static void safe_udelay(unsigned long usecs) -{ - while (usecs > MAX_UDELAY_US) { - udelay(MAX_UDELAY_US); - usecs -= MAX_UDELAY_US; - } - udelay(usecs); -} - -/* SECTION: Communication with user-space */ -static int sir_tx_ir(struct rc_dev *dev, unsigned int *tx_buf, - unsigned int count) -{ - unsigned long flags; - int i; - - local_irq_save(flags); - for (i = 0; i < count;) { - if (tx_buf[i]) - send_pulse(tx_buf[i]); - i++; - if (i >= count) - break; - if (tx_buf[i]) - send_space(tx_buf[i]); - i++; - } - local_irq_restore(flags); - - return count; -} - -static void add_read_queue(int flag, unsigned long val) -{ - DEFINE_IR_RAW_EVENT(ev); - - pr_debug("add flag %d with val %lu\n", flag, val); - - /* - * statistically, pulses are ~TIME_CONST/2 too long. we could - * maybe make this more exact, but this is good enough - */ - if (flag) { - /* pulse */ - if (val > TIME_CONST / 2) - val -= TIME_CONST / 2; - else /* should not ever happen */ - val = 1; - ev.pulse = true; - } else { - val += TIME_CONST / 2; - } - ev.duration = US_TO_NS(val); - - ir_raw_event_store_with_filter(rcdev, &ev); -} - -static int init_chrdev(void) -{ - rcdev = devm_rc_allocate_device(&sir_ir_dev->dev, RC_DRIVER_IR_RAW); - if (!rcdev) - return -ENOMEM; - - rcdev->input_phys = KBUILD_MODNAME "/input0"; - rcdev->input_id.bustype = BUS_HOST; - rcdev->input_id.vendor = 0x0001; - rcdev->input_id.product = 0x0001; - rcdev->input_id.version = 0x0100; - rcdev->tx_ir = sir_tx_ir; - rcdev->allowed_protocols = RC_BIT_ALL_IR_DECODER; - rcdev->map_name = RC_MAP_RC6_MCE; - rcdev->timeout = IR_DEFAULT_TIMEOUT; - rcdev->dev.parent = &sir_ir_dev->dev; - - return devm_rc_register_device(&sir_ir_dev->dev, rcdev); -} - -/* SECTION: Hardware */ -static void sir_timeout(unsigned long data) -{ - /* - * if last received signal was a pulse, but receiving stopped - * within the 9 bit frame, we need to finish this pulse and - * simulate a signal change to from pulse to space. Otherwise - * upper layers will receive two sequences next time. - */ - - unsigned long flags; - unsigned long pulse_end; - - /* avoid interference with interrupt */ - spin_lock_irqsave(&timer_lock, flags); - if (last_value) { - /* clear unread bits in UART and restart */ - outb(UART_FCR_CLEAR_RCVR, io + UART_FCR); - /* determine 'virtual' pulse end: */ - pulse_end = min_t(unsigned long, - ktime_us_delta(last, last_intr_time), - IR_MAX_DURATION); - dev_dbg(&sir_ir_dev->dev, "timeout add %d for %lu usec\n", - last_value, pulse_end); - add_read_queue(last_value, pulse_end); - last_value = 0; - last = last_intr_time; - } - spin_unlock_irqrestore(&timer_lock, flags); - ir_raw_event_handle(rcdev); -} - -static irqreturn_t sir_interrupt(int irq, void *dev_id) -{ - unsigned char data; - ktime_t curr_time; - static unsigned long delt; - unsigned long deltintr; - unsigned long flags; - int iir, lsr; - - while ((iir = inb(io + UART_IIR) & UART_IIR_ID)) { - switch (iir&UART_IIR_ID) { /* FIXME toto treba preriedit */ - case UART_IIR_MSI: - (void) inb(io + UART_MSR); - break; - case UART_IIR_RLSI: - (void) inb(io + UART_LSR); - break; - case UART_IIR_THRI: -#if 0 - if (lsr & UART_LSR_THRE) /* FIFO is empty */ - outb(data, io + UART_TX) -#endif - break; - case UART_IIR_RDI: - /* avoid interference with timer */ - spin_lock_irqsave(&timer_lock, flags); - do { - del_timer(&timerlist); - data = inb(io + UART_RX); - curr_time = ktime_get(); - delt = min_t(unsigned long, - ktime_us_delta(last, curr_time), - IR_MAX_DURATION); - deltintr = min_t(unsigned long, - ktime_us_delta(last_intr_time, - curr_time), - IR_MAX_DURATION); - dev_dbg(&sir_ir_dev->dev, "t %lu, d %d\n", - deltintr, (int)data); - /* - * if nothing came in last X cycles, - * it was gap - */ - if (deltintr > TIME_CONST * threshold) { - if (last_value) { - dev_dbg(&sir_ir_dev->dev, "GAP\n"); - /* simulate signal change */ - add_read_queue(last_value, - delt - - deltintr); - last_value = 0; - last = last_intr_time; - delt = deltintr; - } - } - data = 1; - if (data ^ last_value) { - /* - * deltintr > 2*TIME_CONST, remember? - * the other case is timeout - */ - add_read_queue(last_value, - delt-TIME_CONST); - last_value = data; - last = curr_time; - last = ktime_sub_us(last, - TIME_CONST); - } - last_intr_time = curr_time; - if (data) { - /* - * start timer for end of - * sequence detection - */ - timerlist.expires = jiffies + - SIR_TIMEOUT; - add_timer(&timerlist); - } - - lsr = inb(io + UART_LSR); - } while (lsr & UART_LSR_DR); /* data ready */ - spin_unlock_irqrestore(&timer_lock, flags); - break; - default: - break; - } - } - ir_raw_event_handle(rcdev); - return IRQ_RETVAL(IRQ_HANDLED); -} - -static void send_space(unsigned long len) -{ - safe_udelay(len); -} - -static void send_pulse(unsigned long len) -{ - long bytes_out = len / TIME_CONST; - - if (bytes_out == 0) - bytes_out++; - - while (bytes_out--) { - outb(PULSE, io + UART_TX); - /* FIXME treba seriozne cakanie z char/serial.c */ - while (!(inb(io + UART_LSR) & UART_LSR_THRE)) - ; - } -} - -static int init_hardware(void) -{ - unsigned long flags; - - spin_lock_irqsave(&hardware_lock, flags); - /* reset UART */ -#if defined(LIRC_SIR_TEKRAM) - /* disable FIFO */ - soutp(UART_FCR, - UART_FCR_CLEAR_RCVR| - UART_FCR_CLEAR_XMIT| - UART_FCR_TRIGGER_1); - - /* Set DLAB 0. */ - soutp(UART_LCR, sinp(UART_LCR) & (~UART_LCR_DLAB)); - - /* First of all, disable all interrupts */ - soutp(UART_IER, sinp(UART_IER) & - (~(UART_IER_MSI|UART_IER_RLSI|UART_IER_THRI|UART_IER_RDI))); - - /* Set DLAB 1. */ - soutp(UART_LCR, sinp(UART_LCR) | UART_LCR_DLAB); - - /* Set divisor to 12 => 9600 Baud */ - soutp(UART_DLM, 0); - soutp(UART_DLL, 12); - - /* Set DLAB 0. */ - soutp(UART_LCR, sinp(UART_LCR) & (~UART_LCR_DLAB)); - - /* power supply */ - soutp(UART_MCR, UART_MCR_RTS|UART_MCR_DTR|UART_MCR_OUT2); - safe_udelay(50*1000); - - /* -DTR low -> reset PIC */ - soutp(UART_MCR, UART_MCR_RTS|UART_MCR_OUT2); - udelay(1*1000); - - soutp(UART_MCR, UART_MCR_RTS|UART_MCR_DTR|UART_MCR_OUT2); - udelay(100); - - - /* -RTS low -> send control byte */ - soutp(UART_MCR, UART_MCR_DTR|UART_MCR_OUT2); - udelay(7); - soutp(UART_TX, TEKRAM_115200|TEKRAM_PW); - - /* one byte takes ~1042 usec to transmit at 9600,8N1 */ - udelay(1500); - - /* back to normal operation */ - soutp(UART_MCR, UART_MCR_RTS|UART_MCR_DTR|UART_MCR_OUT2); - udelay(50); - - udelay(1500); - - /* read previous control byte */ - pr_info("0x%02x\n", sinp(UART_RX)); - - /* Set DLAB 1. */ - soutp(UART_LCR, sinp(UART_LCR) | UART_LCR_DLAB); - - /* Set divisor to 1 => 115200 Baud */ - soutp(UART_DLM, 0); - soutp(UART_DLL, 1); - - /* Set DLAB 0, 8 Bit */ - soutp(UART_LCR, UART_LCR_WLEN8); - /* enable interrupts */ - soutp(UART_IER, sinp(UART_IER)|UART_IER_RDI); -#else - outb(0, io + UART_MCR); - outb(0, io + UART_IER); - /* init UART */ - /* set DLAB, speed = 115200 */ - outb(UART_LCR_DLAB | UART_LCR_WLEN7, io + UART_LCR); - outb(1, io + UART_DLL); outb(0, io + UART_DLM); - /* 7N1+start = 9 bits at 115200 ~ 3 bits at 44000 */ - outb(UART_LCR_WLEN7, io + UART_LCR); - /* FIFO operation */ - outb(UART_FCR_ENABLE_FIFO, io + UART_FCR); - /* interrupts */ - /* outb(UART_IER_RLSI|UART_IER_RDI|UART_IER_THRI, io + UART_IER); */ - outb(UART_IER_RDI, io + UART_IER); - /* turn on UART */ - outb(UART_MCR_DTR|UART_MCR_RTS|UART_MCR_OUT2, io + UART_MCR); -#ifdef LIRC_SIR_ACTISYS_ACT200L - init_act200(); -#elif defined(LIRC_SIR_ACTISYS_ACT220L) - init_act220(); -#endif -#endif - spin_unlock_irqrestore(&hardware_lock, flags); - return 0; -} - -static void drop_hardware(void) -{ - unsigned long flags; - - spin_lock_irqsave(&hardware_lock, flags); - - /* turn off interrupts */ - outb(0, io + UART_IER); - - spin_unlock_irqrestore(&hardware_lock, flags); -} - -/* SECTION: Initialisation */ - -static int init_port(void) -{ - int retval; - - /* get I/O port access and IRQ line */ - if (!request_region(io, 8, KBUILD_MODNAME)) { - pr_err("i/o port 0x%.4x already in use.\n", io); - return -EBUSY; - } - retval = request_irq(irq, sir_interrupt, 0, - KBUILD_MODNAME, NULL); - if (retval < 0) { - release_region(io, 8); - pr_err("IRQ %d already in use.\n", irq); - return retval; - } - pr_info("I/O port 0x%.4x, IRQ %d.\n", io, irq); - - setup_timer(&timerlist, sir_timeout, 0); - - return 0; -} - -static void drop_port(void) -{ - free_irq(irq, NULL); - del_timer_sync(&timerlist); - release_region(io, 8); -} - -#ifdef LIRC_SIR_ACTISYS_ACT200L -/* Crystal/Cirrus CS8130 IR transceiver, used in Actisys Act200L dongle */ -/* some code borrowed from Linux IRDA driver */ - -/* Register 0: Control register #1 */ -#define ACT200L_REG0 0x00 -#define ACT200L_TXEN 0x01 /* Enable transmitter */ -#define ACT200L_RXEN 0x02 /* Enable receiver */ -#define ACT200L_ECHO 0x08 /* Echo control chars */ - -/* Register 1: Control register #2 */ -#define ACT200L_REG1 0x10 -#define ACT200L_LODB 0x01 /* Load new baud rate count value */ -#define ACT200L_WIDE 0x04 /* Expand the maximum allowable pulse */ - -/* Register 3: Transmit mode register #2 */ -#define ACT200L_REG3 0x30 -#define ACT200L_B0 0x01 /* DataBits, 0=6, 1=7, 2=8, 3=9(8P) */ -#define ACT200L_B1 0x02 /* DataBits, 0=6, 1=7, 2=8, 3=9(8P) */ -#define ACT200L_CHSY 0x04 /* StartBit Synced 0=bittime, 1=startbit */ - -/* Register 4: Output Power register */ -#define ACT200L_REG4 0x40 -#define ACT200L_OP0 0x01 /* Enable LED1C output */ -#define ACT200L_OP1 0x02 /* Enable LED2C output */ -#define ACT200L_BLKR 0x04 - -/* Register 5: Receive Mode register */ -#define ACT200L_REG5 0x50 -#define ACT200L_RWIDL 0x01 /* fixed 1.6us pulse mode */ - /*.. other various IRDA bit modes, and TV remote modes..*/ - -/* Register 6: Receive Sensitivity register #1 */ -#define ACT200L_REG6 0x60 -#define ACT200L_RS0 0x01 /* receive threshold bit 0 */ -#define ACT200L_RS1 0x02 /* receive threshold bit 1 */ - -/* Register 7: Receive Sensitivity register #2 */ -#define ACT200L_REG7 0x70 -#define ACT200L_ENPOS 0x04 /* Ignore the falling edge */ - -/* Register 8,9: Baud Rate Divider register #1,#2 */ -#define ACT200L_REG8 0x80 -#define ACT200L_REG9 0x90 - -#define ACT200L_2400 0x5f -#define ACT200L_9600 0x17 -#define ACT200L_19200 0x0b -#define ACT200L_38400 0x05 -#define ACT200L_57600 0x03 -#define ACT200L_115200 0x01 - -/* Register 13: Control register #3 */ -#define ACT200L_REG13 0xd0 -#define ACT200L_SHDW 0x01 /* Enable access to shadow registers */ - -/* Register 15: Status register */ -#define ACT200L_REG15 0xf0 - -/* Register 21: Control register #4 */ -#define ACT200L_REG21 0x50 -#define ACT200L_EXCK 0x02 /* Disable clock output driver */ -#define ACT200L_OSCL 0x04 /* oscillator in low power, medium accuracy mode */ - -static void init_act200(void) -{ - int i; - __u8 control[] = { - ACT200L_REG15, - ACT200L_REG13 | ACT200L_SHDW, - ACT200L_REG21 | ACT200L_EXCK | ACT200L_OSCL, - ACT200L_REG13, - ACT200L_REG7 | ACT200L_ENPOS, - ACT200L_REG6 | ACT200L_RS0 | ACT200L_RS1, - ACT200L_REG5 | ACT200L_RWIDL, - ACT200L_REG4 | ACT200L_OP0 | ACT200L_OP1 | ACT200L_BLKR, - ACT200L_REG3 | ACT200L_B0, - ACT200L_REG0 | ACT200L_TXEN | ACT200L_RXEN, - ACT200L_REG8 | (ACT200L_115200 & 0x0f), - ACT200L_REG9 | ((ACT200L_115200 >> 4) & 0x0f), - ACT200L_REG1 | ACT200L_LODB | ACT200L_WIDE - }; - - /* Set DLAB 1. */ - soutp(UART_LCR, UART_LCR_DLAB | UART_LCR_WLEN8); - - /* Set divisor to 12 => 9600 Baud */ - soutp(UART_DLM, 0); - soutp(UART_DLL, 12); - - /* Set DLAB 0. */ - soutp(UART_LCR, UART_LCR_WLEN8); - /* Set divisor to 12 => 9600 Baud */ - - /* power supply */ - soutp(UART_MCR, UART_MCR_RTS|UART_MCR_DTR|UART_MCR_OUT2); - for (i = 0; i < 50; i++) - safe_udelay(1000); - - /* Reset the dongle : set RTS low for 25 ms */ - soutp(UART_MCR, UART_MCR_DTR|UART_MCR_OUT2); - for (i = 0; i < 25; i++) - udelay(1000); - - soutp(UART_MCR, UART_MCR_RTS|UART_MCR_DTR|UART_MCR_OUT2); - udelay(100); - - /* Clear DTR and set RTS to enter command mode */ - soutp(UART_MCR, UART_MCR_RTS|UART_MCR_OUT2); - udelay(7); - - /* send out the control register settings for 115K 7N1 SIR operation */ - for (i = 0; i < sizeof(control); i++) { - soutp(UART_TX, control[i]); - /* one byte takes ~1042 usec to transmit at 9600,8N1 */ - udelay(1500); - } - - /* back to normal operation */ - soutp(UART_MCR, UART_MCR_RTS|UART_MCR_DTR|UART_MCR_OUT2); - udelay(50); - - udelay(1500); - soutp(UART_LCR, sinp(UART_LCR) | UART_LCR_DLAB); - - /* Set DLAB 1. */ - soutp(UART_LCR, UART_LCR_DLAB | UART_LCR_WLEN7); - - /* Set divisor to 1 => 115200 Baud */ - soutp(UART_DLM, 0); - soutp(UART_DLL, 1); - - /* Set DLAB 0. */ - soutp(UART_LCR, sinp(UART_LCR) & (~UART_LCR_DLAB)); - - /* Set DLAB 0, 7 Bit */ - soutp(UART_LCR, UART_LCR_WLEN7); - - /* enable interrupts */ - soutp(UART_IER, sinp(UART_IER)|UART_IER_RDI); -} -#endif - -#ifdef LIRC_SIR_ACTISYS_ACT220L -/* - * Derived from linux IrDA driver (net/irda/actisys.c) - * Drop me a mail for any kind of comment: maxx@spaceboyz.net - */ - -void init_act220(void) -{ - int i; - - /* DLAB 1 */ - soutp(UART_LCR, UART_LCR_DLAB|UART_LCR_WLEN7); - - /* 9600 baud */ - soutp(UART_DLM, 0); - soutp(UART_DLL, 12); - - /* DLAB 0 */ - soutp(UART_LCR, UART_LCR_WLEN7); - - /* reset the dongle, set DTR low for 10us */ - soutp(UART_MCR, UART_MCR_RTS|UART_MCR_OUT2); - udelay(10); - - /* back to normal (still 9600) */ - soutp(UART_MCR, UART_MCR_DTR|UART_MCR_RTS|UART_MCR_OUT2); - - /* - * send RTS pulses until we reach 115200 - * i hope this is really the same for act220l/act220l+ - */ - for (i = 0; i < 3; i++) { - udelay(10); - /* set RTS low for 10 us */ - soutp(UART_MCR, UART_MCR_DTR|UART_MCR_OUT2); - udelay(10); - /* set RTS high for 10 us */ - soutp(UART_MCR, UART_MCR_RTS|UART_MCR_DTR|UART_MCR_OUT2); - } - - /* back to normal operation */ - udelay(1500); /* better safe than sorry ;) */ - - /* Set DLAB 1. */ - soutp(UART_LCR, UART_LCR_DLAB | UART_LCR_WLEN7); - - /* Set divisor to 1 => 115200 Baud */ - soutp(UART_DLM, 0); - soutp(UART_DLL, 1); - - /* Set DLAB 0, 7 Bit */ - /* The dongle doesn't seem to have any problems with operation at 7N1 */ - soutp(UART_LCR, UART_LCR_WLEN7); - - /* enable interrupts */ - soutp(UART_IER, UART_IER_RDI); -} -#endif - -static int init_sir_ir(void) -{ - int retval; - - retval = init_port(); - if (retval < 0) - return retval; - init_hardware(); - pr_info("Installed.\n"); - return 0; -} - -static int sir_ir_probe(struct platform_device *dev) -{ - return 0; -} - -static int sir_ir_remove(struct platform_device *dev) -{ - return 0; -} - -static struct platform_driver sir_ir_driver = { - .probe = sir_ir_probe, - .remove = sir_ir_remove, - .driver = { - .name = "sir_ir", - }, -}; - -static int __init sir_ir_init(void) -{ - int retval; - - retval = platform_driver_register(&sir_ir_driver); - if (retval) { - pr_err("Platform driver register failed!\n"); - return -ENODEV; - } - - sir_ir_dev = platform_device_alloc("sir_ir", 0); - if (!sir_ir_dev) { - pr_err("Platform device alloc failed!\n"); - retval = -ENOMEM; - goto pdev_alloc_fail; - } - - retval = platform_device_add(sir_ir_dev); - if (retval) { - pr_err("Platform device add failed!\n"); - retval = -ENODEV; - goto pdev_add_fail; - } - - retval = init_chrdev(); - if (retval < 0) - goto fail; - - retval = init_sir_ir(); - if (retval) - goto fail; - - return 0; - -fail: - platform_device_del(sir_ir_dev); -pdev_add_fail: - platform_device_put(sir_ir_dev); -pdev_alloc_fail: - platform_driver_unregister(&sir_ir_driver); - return retval; -} - -static void __exit sir_ir_exit(void) -{ - drop_hardware(); - drop_port(); - platform_device_unregister(sir_ir_dev); - platform_driver_unregister(&sir_ir_driver); - pr_info("Uninstalled.\n"); -} - -module_init(sir_ir_init); -module_exit(sir_ir_exit); - -#ifdef LIRC_SIR_TEKRAM -MODULE_DESCRIPTION("Infrared receiver driver for Tekram Irmate 210"); -MODULE_AUTHOR("Christoph Bartelmus"); -#elif defined(LIRC_SIR_ACTISYS_ACT200L) -MODULE_DESCRIPTION("LIRC driver for Actisys Act200L"); -MODULE_AUTHOR("Karl Bongers"); -#elif defined(LIRC_SIR_ACTISYS_ACT220L) -MODULE_DESCRIPTION("LIRC driver for Actisys Act220L(+)"); -MODULE_AUTHOR("Jan Roemisch"); -#else -MODULE_DESCRIPTION("Infrared receiver driver for SIR type serial ports"); -MODULE_AUTHOR("Milan Pikula"); -#endif -MODULE_LICENSE("GPL"); - -module_param(io, int, 0444); -MODULE_PARM_DESC(io, "I/O address base (0x3f8 or 0x2f8)"); - -module_param(irq, int, 0444); -MODULE_PARM_DESC(irq, "Interrupt (4 or 3)"); - -module_param(threshold, int, 0444); -MODULE_PARM_DESC(threshold, "space detection threshold (3)"); - -module_param(debug, bool, 0644); -MODULE_PARM_DESC(debug, "Enable debugging messages"); |
