* could probably support others (Winbond WEC102X, NatSemi, etc)
* with minor modifications.
*
- * Original Author: David Härdeman <david@hardeman.nu>
- * Copyright (C) 2009 - 2010 David Härdeman <david@hardeman.nu>
+ * Original Author: David Härdeman <david@hardeman.nu>
+ * Copyright (C) 2009 - 2011 David Härdeman <david@hardeman.nu>
*
* Dedicated to my daughter Matilda, without whose loving attention this
* driver would have been finished in half the time and with a fraction
* o DSDT dumps
*
* Supported features:
+ * o IR Receive
+ * o IR Transmit
* o Wake-On-CIR functionality
*
* To do:
* o Learning
- * o IR Transmit
*
* 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
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
#include <linux/module.h>
#include <linux/pnp.h>
#include <linux/interrupt.h>
#include <linux/io.h>
#include <linux/bitrev.h>
#include <linux/slab.h>
+#include <linux/wait.h>
+#include <linux/sched.h>
#include <media/rc-core.h>
#define DRVNAME "winbond-cir"
#define WBCIR_IRQ_NONE 0x00
/* RX data bit for WBCIR_REG_SP3_IER and WBCIR_REG_SP3_EIR */
#define WBCIR_IRQ_RX 0x01
+/* TX data low bit for WBCIR_REG_SP3_IER and WBCIR_REG_SP3_EIR */
+#define WBCIR_IRQ_TX_LOW 0x02
/* Over/Under-flow bit for WBCIR_REG_SP3_IER and WBCIR_REG_SP3_EIR */
#define WBCIR_IRQ_ERR 0x04
+/* TX data empty bit for WBCEIR_REG_SP3_IER and WBCIR_REG_SP3_EIR */
+#define WBCIR_IRQ_TX_EMPTY 0x20
/* Led enable/disable bit for WBCIR_REG_ECEIR_CTS */
#define WBCIR_LED_ENABLE 0x80
/* RX data available bit for WBCIR_REG_SP3_LSR */
#define WBCIR_RX_AVAIL 0x01
+/* RX data overrun error bit for WBCIR_REG_SP3_LSR */
+#define WBCIR_RX_OVERRUN 0x02
+/* TX End-Of-Transmission bit for WBCIR_REG_SP3_ASCR */
+#define WBCIR_TX_EOT 0x04
/* RX disable bit for WBCIR_REG_SP3_ASCR */
#define WBCIR_RX_DISABLE 0x20
+/* TX data underrun error bit for WBCIR_REG_SP3_ASCR */
+#define WBCIR_TX_UNDERRUN 0x40
/* Extended mode enable bit for WBCIR_REG_SP3_EXCR1 */
#define WBCIR_EXT_ENABLE 0x01
/* Select compare register in WBCIR_REG_WCEIR_INDEX (bits 5 & 6) */
IR_PROTOCOL_RC6 = 0x2,
};
+/* Possible states for IR reception */
+enum wbcir_rxstate {
+ WBCIR_RXSTATE_INACTIVE = 0,
+ WBCIR_RXSTATE_ACTIVE,
+ WBCIR_RXSTATE_ERROR
+};
+
+/* Possible states for IR transmission */
+enum wbcir_txstate {
+ WBCIR_TXSTATE_INACTIVE = 0,
+ WBCIR_TXSTATE_ACTIVE,
+ WBCIR_TXSTATE_DONE,
+ WBCIR_TXSTATE_ERROR
+};
+
/* Misc */
#define WBCIR_NAME "Winbond CIR"
#define WBCIR_ID_FAMILY 0xF1 /* Family ID for the WPCD376I */
/* Per-device data */
struct wbcir_data {
spinlock_t spinlock;
+ struct rc_dev *dev;
+ struct led_classdev led;
unsigned long wbase; /* Wake-Up Baseaddr */
unsigned long ebase; /* Enhanced Func. Baseaddr */
unsigned long sbase; /* Serial Port Baseaddr */
unsigned int irq; /* Serial Port IRQ */
+ u8 irqmask;
- struct rc_dev *dev;
-
+ /* RX state */
+ enum wbcir_rxstate rxstate;
struct led_trigger *rxtrigger;
- struct led_trigger *txtrigger;
- struct led_classdev led;
+ struct ir_raw_event rxev;
- /* RX irdata state */
- bool irdata_active;
- bool irdata_error;
- struct ir_raw_event ev;
+ /* TX state */
+ enum wbcir_txstate txstate;
+ struct led_trigger *txtrigger;
+ u32 txlen;
+ u32 txoff;
+ u32 *txbuf;
+ wait_queue_head_t txwaitq;
+ u8 txmask;
+ u32 txcarrier;
};
static enum wbcir_protocol protocol = IR_PROTOCOL_RC6;
MODULE_PARM_DESC(protocol, "IR protocol to use for the power-on command "
"(0 = RC5, 1 = NEC, 2 = RC6A, default)");
-static int invert; /* default = 0 */
+static bool invert; /* default = 0 */
module_param(invert, bool, 0444);
MODULE_PARM_DESC(invert, "Invert the signal from the IR receiver");
+static bool txandrx; /* default = 0 */
+module_param(txandrx, bool, 0444);
+MODULE_PARM_DESC(invert, "Allow simultaneous TX and RX");
+
static unsigned int wake_sc = 0x800F040C;
module_param(wake_sc, uint, 0644);
MODULE_PARM_DESC(wake_sc, "Scancode of the power-on IR command");
outb(bank, data->sbase + WBCIR_REG_SP3_BSR);
}
+static inline void
+wbcir_set_irqmask(struct wbcir_data *data, u8 irqmask)
+{
+ if (data->irqmask == irqmask)
+ return;
+
+ wbcir_select_bank(data, WBCIR_BANK_0);
+ outb(irqmask, data->sbase + WBCIR_REG_SP3_IER);
+ data->irqmask = irqmask;
+}
+
static enum led_brightness
wbcir_led_brightness_get(struct led_classdev *led_cdev)
{
*
*****************************************************************************/
+static void
+wbcir_idle_rx(struct rc_dev *dev, bool idle)
+{
+ struct wbcir_data *data = dev->priv;
+
+ if (!idle && data->rxstate == WBCIR_RXSTATE_INACTIVE) {
+ data->rxstate = WBCIR_RXSTATE_ACTIVE;
+ led_trigger_event(data->rxtrigger, LED_FULL);
+ }
+
+ if (idle && data->rxstate != WBCIR_RXSTATE_INACTIVE)
+ /* Tell hardware to go idle by setting RXINACTIVE */
+ outb(WBCIR_RX_DISABLE, data->sbase + WBCIR_REG_SP3_ASCR);
+}
+
+static void
+wbcir_irq_rx(struct wbcir_data *data, struct pnp_dev *device)
+{
+ u8 irdata;
+ DEFINE_IR_RAW_EVENT(rawir);
+
+ /* Since RXHDLEV is set, at least 8 bytes are in the FIFO */
+ while (inb(data->sbase + WBCIR_REG_SP3_LSR) & WBCIR_RX_AVAIL) {
+ irdata = inb(data->sbase + WBCIR_REG_SP3_RXDATA);
+ if (data->rxstate == WBCIR_RXSTATE_ERROR)
+ continue;
+ rawir.pulse = irdata & 0x80 ? false : true;
+ rawir.duration = US_TO_NS((irdata & 0x7F) * 10);
+ ir_raw_event_store_with_filter(data->dev, &rawir);
+ }
+
+ /* Check if we should go idle */
+ if (data->dev->idle) {
+ led_trigger_event(data->rxtrigger, LED_OFF);
+ data->rxstate = WBCIR_RXSTATE_INACTIVE;
+ }
+
+ ir_raw_event_handle(data->dev);
+}
+
+static void
+wbcir_irq_tx(struct wbcir_data *data)
+{
+ unsigned int space;
+ unsigned int used;
+ u8 bytes[16];
+ u8 byte;
+
+ if (!data->txbuf)
+ return;
+
+ switch (data->txstate) {
+ case WBCIR_TXSTATE_INACTIVE:
+ /* TX FIFO empty */
+ space = 16;
+ led_trigger_event(data->txtrigger, LED_FULL);
+ break;
+ case WBCIR_TXSTATE_ACTIVE:
+ /* TX FIFO low (3 bytes or less) */
+ space = 13;
+ break;
+ case WBCIR_TXSTATE_ERROR:
+ space = 0;
+ break;
+ default:
+ return;
+ }
+
+ /*
+ * TX data is run-length coded in bytes: YXXXXXXX
+ * Y = space (1) or pulse (0)
+ * X = duration, encoded as (X + 1) * 10us (i.e 10 to 1280 us)
+ */
+ for (used = 0; used < space && data->txoff != data->txlen; used++) {
+ if (data->txbuf[data->txoff] == 0) {
+ data->txoff++;
+ continue;
+ }
+ byte = min((u32)0x80, data->txbuf[data->txoff]);
+ data->txbuf[data->txoff] -= byte;
+ byte--;
+ byte |= (data->txoff % 2 ? 0x80 : 0x00); /* pulse/space */
+ bytes[used] = byte;
+ }
+
+ while (data->txbuf[data->txoff] == 0 && data->txoff != data->txlen)
+ data->txoff++;
+
+ if (used == 0) {
+ /* Finished */
+ if (data->txstate == WBCIR_TXSTATE_ERROR)
+ /* Clear TX underrun bit */
+ outb(WBCIR_TX_UNDERRUN, data->sbase + WBCIR_REG_SP3_ASCR);
+ else
+ data->txstate = WBCIR_TXSTATE_DONE;
+ wbcir_set_irqmask(data, WBCIR_IRQ_RX | WBCIR_IRQ_ERR);
+ led_trigger_event(data->txtrigger, LED_OFF);
+ wake_up(&data->txwaitq);
+ } else if (data->txoff == data->txlen) {
+ /* At the end of transmission, tell the hw before last byte */
+ outsb(data->sbase + WBCIR_REG_SP3_TXDATA, bytes, used - 1);
+ outb(WBCIR_TX_EOT, data->sbase + WBCIR_REG_SP3_ASCR);
+ outb(bytes[used - 1], data->sbase + WBCIR_REG_SP3_TXDATA);
+ wbcir_set_irqmask(data, WBCIR_IRQ_RX | WBCIR_IRQ_ERR |
+ WBCIR_IRQ_TX_EMPTY);
+ } else {
+ /* More data to follow... */
+ outsb(data->sbase + WBCIR_REG_SP3_RXDATA, bytes, used);
+ if (data->txstate == WBCIR_TXSTATE_INACTIVE) {
+ wbcir_set_irqmask(data, WBCIR_IRQ_RX | WBCIR_IRQ_ERR |
+ WBCIR_IRQ_TX_LOW);
+ data->txstate = WBCIR_TXSTATE_ACTIVE;
+ }
+ }
+}
+
static irqreturn_t
wbcir_irq_handler(int irqno, void *cookie)
{
struct pnp_dev *device = cookie;
struct wbcir_data *data = pnp_get_drvdata(device);
unsigned long flags;
- u8 irdata[8];
- u8 disable = true;
u8 status;
- int i;
spin_lock_irqsave(&data->spinlock, flags);
-
wbcir_select_bank(data, WBCIR_BANK_0);
-
status = inb(data->sbase + WBCIR_REG_SP3_EIR);
+ status &= data->irqmask;
- if (!(status & (WBCIR_IRQ_RX | WBCIR_IRQ_ERR))) {
+ if (!status) {
spin_unlock_irqrestore(&data->spinlock, flags);
return IRQ_NONE;
}
- /* Check for e.g. buffer overflow */
if (status & WBCIR_IRQ_ERR) {
- data->irdata_error = true;
- ir_raw_event_reset(data->dev);
- }
-
- if (!(status & WBCIR_IRQ_RX))
- goto out;
+ /* RX overflow? (read clears bit) */
+ if (inb(data->sbase + WBCIR_REG_SP3_LSR) & WBCIR_RX_OVERRUN) {
+ data->rxstate = WBCIR_RXSTATE_ERROR;
+ ir_raw_event_reset(data->dev);
+ }
- if (!data->irdata_active) {
- data->irdata_active = true;
- led_trigger_event(data->rxtrigger, LED_FULL);
+ /* TX underflow? */
+ if (inb(data->sbase + WBCIR_REG_SP3_ASCR) & WBCIR_TX_UNDERRUN)
+ data->txstate = WBCIR_TXSTATE_ERROR;
}
- /* Since RXHDLEV is set, at least 8 bytes are in the FIFO */
- insb(data->sbase + WBCIR_REG_SP3_RXDATA, &irdata[0], 8);
-
- for (i = 0; i < 8; i++) {
- u8 pulse;
- u32 duration;
+ if (status & WBCIR_IRQ_RX)
+ wbcir_irq_rx(data, device);
- if (irdata[i] != 0xFF && irdata[i] != 0x00)
- disable = false;
+ if (status & (WBCIR_IRQ_TX_LOW | WBCIR_IRQ_TX_EMPTY))
+ wbcir_irq_tx(data);
- if (data->irdata_error)
- continue;
+ spin_unlock_irqrestore(&data->spinlock, flags);
+ return IRQ_HANDLED;
+}
- pulse = irdata[i] & 0x80 ? false : true;
- duration = (irdata[i] & 0x7F) * 10000; /* ns */
+/*****************************************************************************
+ *
+ * RC-CORE INTERFACE FUNCTIONS
+ *
+ *****************************************************************************/
- if (data->ev.pulse != pulse) {
- if (data->ev.duration != 0) {
- ir_raw_event_store(data->dev, &data->ev);
- data->ev.duration = 0;
- }
+static int
+wbcir_txcarrier(struct rc_dev *dev, u32 carrier)
+{
+ struct wbcir_data *data = dev->priv;
+ unsigned long flags;
+ u8 val;
+ u32 freq;
+
+ freq = DIV_ROUND_CLOSEST(carrier, 1000);
+ if (freq < 30 || freq > 60)
+ return -EINVAL;
+
+ switch (freq) {
+ case 58:
+ case 59:
+ case 60:
+ val = freq - 58;
+ freq *= 1000;
+ break;
+ case 57:
+ val = freq - 27;
+ freq = 56900;
+ break;
+ default:
+ val = freq - 27;
+ freq *= 1000;
+ break;
+ }
- data->ev.pulse = pulse;
- }
+ spin_lock_irqsave(&data->spinlock, flags);
+ if (data->txstate != WBCIR_TXSTATE_INACTIVE) {
+ spin_unlock_irqrestore(&data->spinlock, flags);
+ return -EBUSY;
+ }
- data->ev.duration += duration;
+ if (data->txcarrier != freq) {
+ wbcir_select_bank(data, WBCIR_BANK_7);
+ wbcir_set_bits(data->sbase + WBCIR_REG_SP3_IRTXMC, val, 0x1F);
+ data->txcarrier = freq;
}
- if (disable) {
- if (data->ev.duration != 0 && !data->irdata_error) {
- ir_raw_event_store(data->dev, &data->ev);
- data->ev.duration = 0;
- }
+ spin_unlock_irqrestore(&data->spinlock, flags);
+ return 0;
+}
- /* Set RXINACTIVE */
- outb(WBCIR_RX_DISABLE, data->sbase + WBCIR_REG_SP3_ASCR);
+static int
+wbcir_txmask(struct rc_dev *dev, u32 mask)
+{
+ struct wbcir_data *data = dev->priv;
+ unsigned long flags;
+ u8 val;
- /* Drain the FIFO */
- while (inb(data->sbase + WBCIR_REG_SP3_LSR) & WBCIR_RX_AVAIL)
- inb(data->sbase + WBCIR_REG_SP3_RXDATA);
+ /* Four outputs, only one output can be enabled at a time */
+ switch (mask) {
+ case 0x1:
+ val = 0x0;
+ break;
+ case 0x2:
+ val = 0x1;
+ break;
+ case 0x4:
+ val = 0x2;
+ break;
+ case 0x8:
+ val = 0x3;
+ break;
+ default:
+ return -EINVAL;
+ }
- ir_raw_event_reset(data->dev);
- data->irdata_error = false;
- data->irdata_active = false;
- led_trigger_event(data->rxtrigger, LED_OFF);
+ spin_lock_irqsave(&data->spinlock, flags);
+ if (data->txstate != WBCIR_TXSTATE_INACTIVE) {
+ spin_unlock_irqrestore(&data->spinlock, flags);
+ return -EBUSY;
}
- ir_raw_event_handle(data->dev);
+ if (data->txmask != mask) {
+ wbcir_set_bits(data->ebase + WBCIR_REG_ECEIR_CTS, val, 0x0c);
+ data->txmask = mask;
+ }
-out:
spin_unlock_irqrestore(&data->spinlock, flags);
- return IRQ_HANDLED;
+ return 0;
}
+static int
+wbcir_tx(struct rc_dev *dev, unsigned *buf, unsigned count)
+{
+ struct wbcir_data *data = dev->priv;
+ unsigned i;
+ unsigned long flags;
+
+ /* Not sure if this is possible, but better safe than sorry */
+ spin_lock_irqsave(&data->spinlock, flags);
+ if (data->txstate != WBCIR_TXSTATE_INACTIVE) {
+ spin_unlock_irqrestore(&data->spinlock, flags);
+ return -EBUSY;
+ }
+
+ /* Convert values to multiples of 10us */
+ for (i = 0; i < count; i++)
+ buf[i] = DIV_ROUND_CLOSEST(buf[i], 10);
+ /* Fill the TX fifo once, the irq handler will do the rest */
+ data->txbuf = buf;
+ data->txlen = count;
+ data->txoff = 0;
+ wbcir_irq_tx(data);
+
+ /* Wait for the TX to complete */
+ while (data->txstate == WBCIR_TXSTATE_ACTIVE) {
+ spin_unlock_irqrestore(&data->spinlock, flags);
+ wait_event(data->txwaitq, data->txstate != WBCIR_TXSTATE_ACTIVE);
+ spin_lock_irqsave(&data->spinlock, flags);
+ }
+
+ /* We're done */
+ if (data->txstate == WBCIR_TXSTATE_ERROR)
+ count = -EAGAIN;
+ data->txstate = WBCIR_TXSTATE_INACTIVE;
+ data->txbuf = NULL;
+ spin_unlock_irqrestore(&data->spinlock, flags);
+
+ return count;
+}
/*****************************************************************************
*
{
struct device *dev = &device->dev;
struct wbcir_data *data = pnp_get_drvdata(device);
- int do_wake = 1;
+ bool do_wake = true;
u8 match[11];
u8 mask[11];
u8 rc6_csl = 0;
memset(mask, 0, sizeof(mask));
if (wake_sc == INVALID_SCANCODE || !device_may_wakeup(dev)) {
- do_wake = 0;
+ do_wake = false;
goto finish;
}
switch (protocol) {
case IR_PROTOCOL_RC5:
if (wake_sc > 0xFFF) {
- do_wake = 0;
+ do_wake = false;
dev_err(dev, "RC5 - Invalid wake scancode\n");
break;
}
case IR_PROTOCOL_NEC:
if (wake_sc > 0xFFFFFF) {
- do_wake = 0;
+ do_wake = false;
dev_err(dev, "NEC - Invalid wake scancode\n");
break;
}
if (wake_rc6mode == 0) {
if (wake_sc > 0xFFFF) {
- do_wake = 0;
+ do_wake = false;
dev_err(dev, "RC6 - Invalid wake scancode\n");
break;
}
} else if (wake_sc <= 0x007FFFFF) {
rc6_csl = 60;
} else {
- do_wake = 0;
+ do_wake = false;
dev_err(dev, "RC6 - Invalid wake scancode\n");
break;
}
mask[i++] = 0x0F;
} else {
- do_wake = 0;
+ do_wake = false;
dev_err(dev, "RC6 - Invalid wake mode\n");
}
break;
default:
- do_wake = 0;
+ do_wake = false;
break;
}
wbcir_set_bits(data->wbase + WBCIR_REG_WCEIR_CTL, 0x00, 0x01);
}
- /* Disable interrupts */
- wbcir_select_bank(data, WBCIR_BANK_0);
- outb(WBCIR_IRQ_NONE, data->sbase + WBCIR_REG_SP3_IER);
-
- /* Disable LED */
- data->irdata_active = false;
- led_trigger_event(data->rxtrigger, LED_OFF);
-
/*
* ACPI will set the HW disable bit for SP3 which means that the
* output signals are left in an undefined state which may cause
* spurious interrupts which we need to ignore until the hardware
* is reinitialized.
*/
+ wbcir_set_irqmask(data, WBCIR_IRQ_NONE);
disable_irq(data->irq);
+
+ /* Disable LED */
+ led_trigger_event(data->rxtrigger, LED_OFF);
+ led_trigger_event(data->txtrigger, LED_OFF);
}
static int
u8 tmp;
/* Disable interrupts */
- wbcir_select_bank(data, WBCIR_BANK_0);
- outb(WBCIR_IRQ_NONE, data->sbase + WBCIR_REG_SP3_IER);
+ wbcir_set_irqmask(data, WBCIR_IRQ_NONE);
/* Set PROT_SEL, RX_INV, Clear CEIR_EN (needed for the led) */
tmp = protocol << 4;
outb(0x00, data->ebase + WBCIR_REG_ECEIR_CCTL);
/*
- * Clear IR LED, set SP3 clock to 24Mhz
+ * Clear IR LED, set SP3 clock to 24Mhz, set TX mask to IRTX1,
* set SP3_IRRX_SW to binary 01, helpfully not documented
*/
outb(0x10, data->ebase + WBCIR_REG_ECEIR_CTS);
+ data->txmask = 0x1;
/* Enable extended mode */
wbcir_select_bank(data, WBCIR_BANK_2);
/* prescaler 1.0, tx/rx fifo lvl 16 */
outb(0x30, data->sbase + WBCIR_REG_SP3_EXCR2);
- /* Set baud divisor to generate one byte per bit/cell */
- switch (protocol) {
- case IR_PROTOCOL_RC5:
- outb(0xA7, data->sbase + WBCIR_REG_SP3_BGDL);
- break;
- case IR_PROTOCOL_RC6:
- outb(0x53, data->sbase + WBCIR_REG_SP3_BGDL);
- break;
- case IR_PROTOCOL_NEC:
- outb(0x69, data->sbase + WBCIR_REG_SP3_BGDL);
- break;
- }
+ /* Set baud divisor to sample every 10 us */
+ outb(0x0F, data->sbase + WBCIR_REG_SP3_BGDL);
outb(0x00, data->sbase + WBCIR_REG_SP3_BGDH);
/* Set CEIR mode */
inb(data->sbase + WBCIR_REG_SP3_LSR); /* Clear LSR */
inb(data->sbase + WBCIR_REG_SP3_MSR); /* Clear MSR */
- /* Disable RX demod, run-length encoding/decoding, set freq span */
+ /* Disable RX demod, enable run-length enc/dec, set freq span */
wbcir_select_bank(data, WBCIR_BANK_7);
- outb(0x10, data->sbase + WBCIR_REG_SP3_RCCFG);
+ outb(0x90, data->sbase + WBCIR_REG_SP3_RCCFG);
/* Disable timer */
wbcir_select_bank(data, WBCIR_BANK_4);
outb(0x00, data->sbase + WBCIR_REG_SP3_IRCR1);
- /* Enable MSR interrupt, Clear AUX_IRX */
+ /* Disable MSR interrupt, clear AUX_IRX, mask RX during TX? */
wbcir_select_bank(data, WBCIR_BANK_5);
- outb(0x00, data->sbase + WBCIR_REG_SP3_IRCR2);
+ outb(txandrx ? 0x03 : 0x02, data->sbase + WBCIR_REG_SP3_IRCR2);
/* Disable CRC */
wbcir_select_bank(data, WBCIR_BANK_6);
outb(0x20, data->sbase + WBCIR_REG_SP3_IRCR3);
- /* Set RX/TX (de)modulation freq, not really used */
+ /* Set RX demodulation freq, not really used */
wbcir_select_bank(data, WBCIR_BANK_7);
outb(0xF2, data->sbase + WBCIR_REG_SP3_IRRXDC);
+
+ /* Set TX modulation, 36kHz, 7us pulse width */
outb(0x69, data->sbase + WBCIR_REG_SP3_IRTXMC);
+ data->txcarrier = 36000;
/* Set invert and pin direction */
if (invert)
/* Clear AUX status bits */
outb(0xE0, data->sbase + WBCIR_REG_SP3_ASCR);
- /* Clear IR decoding state */
- data->irdata_active = false;
- led_trigger_event(data->rxtrigger, LED_OFF);
- data->irdata_error = false;
- data->ev.duration = 0;
+ /* Clear RX state */
+ data->rxstate = WBCIR_RXSTATE_INACTIVE;
+ data->rxev.duration = 0;
ir_raw_event_reset(data->dev);
ir_raw_event_handle(data->dev);
+ /*
+ * Check TX state, if we did a suspend/resume cycle while TX was
+ * active, we will have a process waiting in txwaitq.
+ */
+ if (data->txstate == WBCIR_TXSTATE_ACTIVE) {
+ data->txstate = WBCIR_TXSTATE_ERROR;
+ wake_up(&data->txwaitq);
+ }
+
/* Enable interrupts */
- outb(WBCIR_IRQ_RX | WBCIR_IRQ_ERR, data->sbase + WBCIR_REG_SP3_IER);
+ wbcir_set_irqmask(data, WBCIR_IRQ_RX | WBCIR_IRQ_ERR);
}
static int
pnp_set_drvdata(device, data);
spin_lock_init(&data->spinlock);
+ init_waitqueue_head(&data->txwaitq);
data->ebase = pnp_port_start(device, 0);
data->wbase = pnp_port_start(device, 1);
data->sbase = pnp_port_start(device, 2);
"(w: 0x%lX, e: 0x%lX, s: 0x%lX, i: %u)\n",
data->wbase, data->ebase, data->sbase, data->irq);
- if (!request_region(data->wbase, WAKEUP_IOMEM_LEN, DRVNAME)) {
- dev_err(dev, "Region 0x%lx-0x%lx already in use!\n",
- data->wbase, data->wbase + WAKEUP_IOMEM_LEN - 1);
- err = -EBUSY;
- goto exit_free_data;
- }
-
- if (!request_region(data->ebase, EHFUNC_IOMEM_LEN, DRVNAME)) {
- dev_err(dev, "Region 0x%lx-0x%lx already in use!\n",
- data->ebase, data->ebase + EHFUNC_IOMEM_LEN - 1);
- err = -EBUSY;
- goto exit_release_wbase;
- }
-
- if (!request_region(data->sbase, SP_IOMEM_LEN, DRVNAME)) {
- dev_err(dev, "Region 0x%lx-0x%lx already in use!\n",
- data->sbase, data->sbase + SP_IOMEM_LEN - 1);
- err = -EBUSY;
- goto exit_release_ebase;
- }
-
- err = request_irq(data->irq, wbcir_irq_handler,
- IRQF_DISABLED, DRVNAME, device);
- if (err) {
- dev_err(dev, "Failed to claim IRQ %u\n", data->irq);
- err = -EBUSY;
- goto exit_release_sbase;
- }
-
led_trigger_register_simple("cir-tx", &data->txtrigger);
if (!data->txtrigger) {
err = -ENOMEM;
- goto exit_free_irq;
+ goto exit_free_data;
}
led_trigger_register_simple("cir-rx", &data->rxtrigger);
goto exit_unregister_led;
}
+ data->dev->driver_type = RC_DRIVER_IR_RAW;
data->dev->driver_name = WBCIR_NAME;
data->dev->input_name = WBCIR_NAME;
data->dev->input_phys = "wbcir/cir0";
data->dev->input_id.vendor = PCI_VENDOR_ID_WINBOND;
data->dev->input_id.product = WBCIR_ID_FAMILY;
data->dev->input_id.version = WBCIR_ID_CHIP;
+ data->dev->map_name = RC_MAP_RC6_MCE;
+ data->dev->s_idle = wbcir_idle_rx;
+ data->dev->s_tx_mask = wbcir_txmask;
+ data->dev->s_tx_carrier = wbcir_txcarrier;
+ data->dev->tx_ir = wbcir_tx;
data->dev->priv = data;
data->dev->dev.parent = &device->dev;
+ if (!request_region(data->wbase, WAKEUP_IOMEM_LEN, DRVNAME)) {
+ dev_err(dev, "Region 0x%lx-0x%lx already in use!\n",
+ data->wbase, data->wbase + WAKEUP_IOMEM_LEN - 1);
+ err = -EBUSY;
+ goto exit_free_rc;
+ }
+
+ if (!request_region(data->ebase, EHFUNC_IOMEM_LEN, DRVNAME)) {
+ dev_err(dev, "Region 0x%lx-0x%lx already in use!\n",
+ data->ebase, data->ebase + EHFUNC_IOMEM_LEN - 1);
+ err = -EBUSY;
+ goto exit_release_wbase;
+ }
+
+ if (!request_region(data->sbase, SP_IOMEM_LEN, DRVNAME)) {
+ dev_err(dev, "Region 0x%lx-0x%lx already in use!\n",
+ data->sbase, data->sbase + SP_IOMEM_LEN - 1);
+ err = -EBUSY;
+ goto exit_release_ebase;
+ }
+
+ err = request_irq(data->irq, wbcir_irq_handler,
+ IRQF_DISABLED, DRVNAME, device);
+ if (err) {
+ dev_err(dev, "Failed to claim IRQ %u\n", data->irq);
+ err = -EBUSY;
+ goto exit_release_sbase;
+ }
+
err = rc_register_device(data->dev);
if (err)
- goto exit_free_rc;
+ goto exit_free_irq;
device_init_wakeup(&device->dev, 1);
return 0;
-exit_free_rc:
- rc_free_device(data->dev);
-exit_unregister_led:
- led_classdev_unregister(&data->led);
-exit_unregister_rxtrigger:
- led_trigger_unregister_simple(data->rxtrigger);
-exit_unregister_txtrigger:
- led_trigger_unregister_simple(data->txtrigger);
exit_free_irq:
free_irq(data->irq, device);
exit_release_sbase:
release_region(data->ebase, EHFUNC_IOMEM_LEN);
exit_release_wbase:
release_region(data->wbase, WAKEUP_IOMEM_LEN);
+exit_free_rc:
+ rc_free_device(data->dev);
+exit_unregister_led:
+ led_classdev_unregister(&data->led);
+exit_unregister_rxtrigger:
+ led_trigger_unregister_simple(data->rxtrigger);
+exit_unregister_txtrigger:
+ led_trigger_unregister_simple(data->txtrigger);
exit_free_data:
kfree(data);
pnp_set_drvdata(device, NULL);
struct wbcir_data *data = pnp_get_drvdata(device);
/* Disable interrupts */
- wbcir_select_bank(data, WBCIR_BANK_0);
- outb(WBCIR_IRQ_NONE, data->sbase + WBCIR_REG_SP3_IER);
-
+ wbcir_set_irqmask(data, WBCIR_IRQ_NONE);
free_irq(data->irq, device);
/* Clear status bits NEC_REP, BUFF, MSG_END, MATCH */
case IR_PROTOCOL_RC6:
break;
default:
- printk(KERN_ERR DRVNAME ": Invalid power-on protocol\n");
+ pr_err("Invalid power-on protocol\n");
}
ret = pnp_register_driver(&wbcir_driver);
if (ret)
- printk(KERN_ERR DRVNAME ": Unable to register driver\n");
+ pr_err("Unable to register driver\n");
return ret;
}
module_init(wbcir_init);
module_exit(wbcir_exit);
-MODULE_AUTHOR("David Härdeman <david@hardeman.nu>");
+MODULE_AUTHOR("David Härdeman <david@hardeman.nu>");
MODULE_DESCRIPTION("Winbond SuperI/O Consumer IR Driver");
MODULE_LICENSE("GPL");
projects / linux-flexiantxendom0-3.2.10.git / blobdiff