static int loop_tx_ir(struct rc_dev *dev, unsigned *txbuf, unsigned count)
{
struct loopback_dev *lodev = dev->priv;
u32 rxmask;
unsigned total_duration = 0;
unsigned i;
DEFINE_IR_RAW_EVENT(rawir);
for (i = 0; i < count; i++)
total_duration += abs(txbuf[i]);
if (total_duration == 0) {
dprintk("invalid tx data, total duration zero\n");
return -EINVAL;
}
if (lodev->txcarrier < lodev->rxcarriermin ||
lodev->txcarrier > lodev->rxcarriermax) {
dprintk("ignoring tx, carrier out of range\n");
goto out;
}
if (lodev->learning)
rxmask = RXMASK_LEARNING;
else
rxmask = RXMASK_REGULAR;
if (!(rxmask & lodev->txmask)) {
dprintk("ignoring tx, rx mask mismatch\n");
goto out;
}
for (i = 0; i < count; i++) {
rawir.pulse = i % 2 ? false : true;
rawir.duration = txbuf[i] * 1000;
if (rawir.duration)
ir_raw_event_store_with_filter(dev, &rawir);
}
/* Fake a silence long enough to cause us to go idle */
rawir.pulse = false;
rawir.duration = dev->timeout;
ir_raw_event_store_with_filter(dev, &rawir);
ir_raw_event_handle(dev);
out:
/* Lirc expects this function to take as long as the total duration */
set_current_state(TASK_INTERRUPTIBLE);
schedule_timeout(usecs_to_jiffies(total_duration));
return count;
}
void sms_ir_event(struct smscore_device_t *coredev, const char *buf, int len)
{
int i;
const s32 *samples = (const void *)buf;
for (i = 0; i < len >> 2; i++) {
DEFINE_IR_RAW_EVENT(ev);
ev.duration = abs(samples[i]) * 1000;
ev.pulse = (samples[i] > 0) ? false : true;
ir_raw_event_store(coredev->ir.dev, &ev);
}
ir_raw_event_handle(coredev->ir.dev);
}
/* decode raw bytes as received by the hardware, and push them to the ir-core
* layer */
static void ite_decode_bytes(struct ite_dev *dev, const u8 * data, int
length)
{
u32 sample_period;
unsigned long *ldata;
unsigned int next_one, next_zero, size;
DEFINE_IR_RAW_EVENT(ev);
if (length == 0)
return;
sample_period = dev->params.sample_period;
ldata = (unsigned long *)data;
size = length << 3;
next_one = find_next_bit_le(ldata, size, 0);
if (next_one > 0) {
ev.pulse = true;
ev.duration =
ITE_BITS_TO_NS(next_one, sample_period);
ir_raw_event_store_with_filter(dev->rdev, &ev);
}
while (next_one < size) {
next_zero = find_next_zero_bit_le(ldata, size, next_one + 1);
ev.pulse = false;
ev.duration = ITE_BITS_TO_NS(next_zero - next_one, sample_period);
ir_raw_event_store_with_filter(dev->rdev, &ev);
if (next_zero < size) {
next_one =
find_next_bit_le(ldata,
size,
next_zero + 1);
ev.pulse = true;
ev.duration =
ITE_BITS_TO_NS(next_one - next_zero,
sample_period);
ir_raw_event_store_with_filter
(dev->rdev, &ev);
} else
next_one = size;
}
ir_raw_event_handle(dev->rdev);
ite_dbg_verbose("decoded %d bytes.", length);
}
/* timer callback to send long trailing space on receive timeout */
static void redrat3_rx_timeout(unsigned long data)
{
struct redrat3_dev *rr3 = (struct redrat3_dev *)data;
DEFINE_IR_RAW_EVENT(rawir);
rawir.pulse = false;
rawir.duration = rr3->rc->timeout;
rr3_dbg(rr3->dev, "storing trailing space with duration %d\n",
rawir.duration);
ir_raw_event_store_with_filter(rr3->rc, &rawir);
rr3_dbg(rr3->dev, "calling ir_raw_event_handle\n");
ir_raw_event_handle(rr3->rc);
rr3_dbg(rr3->dev, "calling ir_raw_event_reset\n");
ir_raw_event_reset(rr3->rc);
}
static void igorplugusb_irdata(struct igorplugusb *ir, unsigned len)
{
DEFINE_IR_RAW_EVENT(rawir);
unsigned i, start, overflow;
dev_dbg(ir->dev, "irdata: %*ph (len=%u)", len, ir->buf_in, len);
/*
* If more than 36 pulses and spaces follow each other, the igorplugusb
* overwrites its buffer from the beginning. The overflow value is the
* last offset which was not overwritten. Everything from this offset
* onwards occurred before everything until this offset.
*/
overflow = ir->buf_in[2];
i = start = overflow + HEADERLEN;
if (start >= len) {
dev_err(ir->dev, "receive overflow invalid: %u", overflow);
} else {
if (overflow > 0)
dev_warn(ir->dev, "receive overflow, at least %u lost",
overflow);
do {
rawir.duration = ir->buf_in[i] * 85333;
rawir.pulse = i & 1;
ir_raw_event_store_with_filter(ir->rc, &rawir);
if (++i == len)
i = HEADERLEN;
} while (i != start);
/* add a trailing space */
rawir.duration = ir->rc->timeout;
rawir.pulse = false;
ir_raw_event_store_with_filter(ir->rc, &rawir);
ir_raw_event_handle(ir->rc);
}
igorplugusb_cmd(ir, SET_INFRABUFFER_EMPTY);
}
static void process_ir_data(struct iguanair *ir, unsigned len)
{
if (len >= 4 && ir->buf_in[0] == 0 && ir->buf_in[1] == 0) {
switch (ir->buf_in[3]) {
case CMD_TX_OVERFLOW:
ir->tx_overflow = true;
case CMD_RECEIVER_OFF:
case CMD_RECEIVER_ON:
case CMD_SEND:
complete(&ir->completion);
break;
case CMD_RX_OVERFLOW:
dev_warn(ir->dev, "receive overflow\n");
break;
default:
dev_warn(ir->dev, "control code %02x received\n",
ir->buf_in[3]);
break;
}
} else if (len >= 7) {
DEFINE_IR_RAW_EVENT(rawir);
unsigned i;
init_ir_raw_event(&rawir);
for (i = 0; i < 7; i++) {
if (ir->buf_in[i] == 0x80) {
rawir.pulse = false;
rawir.duration = US_TO_NS(21845);
} else {
rawir.pulse = (ir->buf_in[i] & 0x80) == 0;
rawir.duration = ((ir->buf_in[i] & 0x7f) + 1) *
21330;
}
ir_raw_event_store_with_filter(ir->rc, &rawir);
}
ir_raw_event_handle(ir->rc);
}
}
static irqreturn_t sunxi_ir_irq(int irqno, void *dev_id)
{
unsigned long status;
unsigned char dt;
unsigned int cnt, rc;
struct sunxi_ir *ir = dev_id;
DEFINE_IR_RAW_EVENT(rawir);
spin_lock(&ir->ir_lock);
status = readl(ir->base + SUNXI_IR_RXSTA_REG);
/* clean all pending statuses */
writel(status | REG_RXSTA_CLEARALL, ir->base + SUNXI_IR_RXSTA_REG);
if (status & (REG_RXINT_RAI_EN | REG_RXINT_RPEI_EN)) {
/* How many messages in fifo */
rc = REG_RXSTA_GET_AC(status);
/* Sanity check */
rc = rc > ir->fifo_size ? ir->fifo_size : rc;
/* If we have data */
for (cnt = 0; cnt < rc; cnt++) {
/* for each bit in fifo */
dt = readb(ir->base + SUNXI_IR_RXFIFO_REG);
rawir.pulse = (dt & 0x80) != 0;
rawir.duration = ((dt & 0x7f) + 1) * SUNXI_IR_SAMPLE;
ir_raw_event_store_with_filter(ir->rc, &rawir);
}
}
if (status & REG_RXINT_ROI_EN) {
ir_raw_event_reset(ir->rc);
} else if (status & REG_RXINT_RPEI_EN) {
ir_raw_event_set_idle(ir->rc, true);
ir_raw_event_handle(ir->rc);
}
spin_unlock(&ir->ir_lock);
return IRQ_HANDLED;
}
static irqreturn_t meson_ir_irq(int irqno, void *dev_id)
{
struct meson_ir *ir = dev_id;
u32 duration;
DEFINE_IR_RAW_EVENT(rawir);
spin_lock(&ir->lock);
duration = readl(ir->reg + IR_DEC_REG1);
duration = (duration & REG1_TIME_IV_MASK) >> REG1_TIME_IV_SHIFT;
rawir.duration = US_TO_NS(duration * MESON_TRATE);
rawir.pulse = !!(readl(ir->reg + IR_DEC_STATUS) & STATUS_IR_DEC_IN);
ir_raw_event_store_with_filter(ir->rc, &rawir);
ir_raw_event_handle(ir->rc);
spin_unlock(&ir->lock);
return IRQ_HANDLED;
}
int picolcd_raw_cir(struct picolcd_data *data,
struct hid_report *report, u8 *raw_data, int size)
{
unsigned long flags;
int i, w, sz;
DEFINE_IR_RAW_EVENT(rawir);
/* ignore if rc_dev is NULL or status is shunned */
spin_lock_irqsave(&data->lock, flags);
if (!data->rc_dev || (data->status & PICOLCD_CIR_SHUN)) {
spin_unlock_irqrestore(&data->lock, flags);
return 1;
}
spin_unlock_irqrestore(&data->lock, flags);
/* PicoLCD USB packets contain 16-bit intervals in network order,
* with value negated for pulse. Intervals are in microseconds.
*
* Note: some userspace LIRC code for PicoLCD says negated values
* for space - is it a matter of IR chip? (pulse for my TSOP2236)
*
* In addition, the first interval seems to be around 15000 + base
* interval for non-first report of IR data - thus the quirk below
* to get RC_CODE to understand Sony and JVC remotes I have at hand
*/
sz = size > 0 ? min((int)raw_data[0], size-1) : 0;
for (i = 0; i+1 < sz; i += 2) {
init_ir_raw_event(&rawir);
w = (raw_data[i] << 8) | (raw_data[i+1]);
rawir.pulse = !!(w & 0x8000);
rawir.duration = US_TO_NS(rawir.pulse ? (65536 - w) : w);
/* Quirk!! - see above */
if (i == 0 && rawir.duration > 15000000)
rawir.duration -= 15000000;
ir_raw_event_store(data->rc_dev, &rawir);
}
ir_raw_event_handle(data->rc_dev);
return 1;
}
static int loop_tx_ir(struct rc_dev *dev, unsigned *txbuf, unsigned count)
{
struct loopback_dev *lodev = dev->priv;
u32 rxmask;
unsigned i;
DEFINE_IR_RAW_EVENT(rawir);
if (lodev->txcarrier < lodev->rxcarriermin ||
lodev->txcarrier > lodev->rxcarriermax) {
dprintk("ignoring tx, carrier out of range\n");
goto out;
}
if (lodev->learning)
rxmask = RXMASK_LEARNING;
else
rxmask = RXMASK_REGULAR;
if (!(rxmask & lodev->txmask)) {
dprintk("ignoring tx, rx mask mismatch\n");
goto out;
}
for (i = 0; i < count; i++) {
rawir.pulse = i % 2 ? false : true;
rawir.duration = txbuf[i] * 1000;
if (rawir.duration)
ir_raw_event_store_with_filter(dev, &rawir);
}
/* Fake a silence long enough to cause us to go idle */
rawir.pulse = false;
rawir.duration = dev->timeout;
ir_raw_event_store_with_filter(dev, &rawir);
ir_raw_event_handle(dev);
out:
return count;
}
/**
* ir_raw_event_store_edge() - notify raw ir decoders of the start of a pulse/space
* @dev: the struct rc_dev device descriptor
* @type: the type of the event that has occurred
*
* This routine (which may be called from an interrupt context) is used to
* store the beginning of an ir pulse or space (or the start/end of ir
* reception) for the raw ir decoding state machines. This is used by
* hardware which does not provide durations directly but only interrupts
* (or similar events) on state change.
*/
int ir_raw_event_store_edge(struct rc_dev *dev, enum raw_event_type type)
{
ktime_t now;
s64 delta; /* ns */
DEFINE_IR_RAW_EVENT(ev);
int rc = 0;
int delay;
if (!dev->raw)
return -EINVAL;
now = ktime_get();
delta = ktime_to_ns(ktime_sub(now, dev->raw->last_event));
delay = MS_TO_NS(dev->input_dev->rep[REP_DELAY]);
/* Check for a long duration since last event or if we're
* being called for the first time, note that delta can't
* possibly be negative.
*/
if (delta > delay || !dev->raw->last_type)
type |= IR_START_EVENT;
else
ev.duration = delta;
if (type & IR_START_EVENT)
ir_raw_event_reset(dev);
else if (dev->raw->last_type & IR_SPACE) {
ev.pulse = false;
rc = ir_raw_event_store(dev, &ev);
} else if (dev->raw->last_type & IR_PULSE) {
ev.pulse = true;
rc = ir_raw_event_store(dev, &ev);
} else
return 0;
dev->raw->last_event = now;
dev->raw->last_type = type;
return rc;
}
static void
wbcir_carrier_report(struct wbcir_data *data)
{
unsigned counter = inb(data->ebase + WBCIR_REG_ECEIR_CNT_LO) |
inb(data->ebase + WBCIR_REG_ECEIR_CNT_HI) << 8;
if (counter > 0 && counter < 0xffff) {
DEFINE_IR_RAW_EVENT(ev);
ev.carrier_report = 1;
ev.carrier = DIV_ROUND_CLOSEST(counter * 1000000u,
data->pulse_duration);
ir_raw_event_store(data->dev, &ev);
}
/* reset and restart the counter */
data->pulse_duration = 0;
wbcir_set_bits(data->ebase + WBCIR_REG_ECEIR_CCTL, WBCIR_CNTR_R,
WBCIR_CNTR_EN | WBCIR_CNTR_R);
wbcir_set_bits(data->ebase + WBCIR_REG_ECEIR_CCTL, WBCIR_CNTR_EN,
WBCIR_CNTR_EN | WBCIR_CNTR_R);
}
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 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 irqreturn_t st_rc_rx_interrupt(int irq, void *data)
{
unsigned int symbol, mark = 0;
struct st_rc_device *dev = data;
int last_symbol = 0;
u32 status;
DEFINE_IR_RAW_EVENT(ev);
if (dev->irq_wake)
pm_wakeup_event(dev->dev, 0);
status = readl(dev->rx_base + IRB_RX_STATUS);
while (status & (IRB_FIFO_NOT_EMPTY | IRB_OVERFLOW)) {
u32 int_status = readl(dev->rx_base + IRB_RX_INT_STATUS);
if (unlikely(int_status & IRB_RX_OVERRUN_INT)) {
/* discard the entire collection in case of errors! */
ir_raw_event_reset(dev->rdev);
dev_info(dev->dev, "IR RX overrun\n");
writel(IRB_RX_OVERRUN_INT,
dev->rx_base + IRB_RX_INT_CLEAR);
continue;
}
symbol = readl(dev->rx_base + IRB_RX_SYS);
mark = readl(dev->rx_base + IRB_RX_ON);
if (symbol == IRB_TIMEOUT)
last_symbol = 1;
/* Ignore any noise */
if ((mark > 2) && (symbol > 1)) {
symbol -= mark;
if (dev->overclocking) { /* adjustments to timings */
symbol *= dev->sample_mult;
symbol /= dev->sample_div;
mark *= dev->sample_mult;
mark /= dev->sample_div;
}
ev.duration = US_TO_NS(mark);
ev.pulse = true;
ir_raw_event_store(dev->rdev, &ev);
if (!last_symbol) {
ev.duration = US_TO_NS(symbol);
ev.pulse = false;
ir_raw_event_store(dev->rdev, &ev);
} else {
st_rc_send_lirc_timeout(dev->rdev);
}
}
last_symbol = 0;
status = readl(dev->rx_base + IRB_RX_STATUS);
}
writel(IRB_RX_INTS, dev->rx_base + IRB_RX_INT_CLEAR);
/* Empty software fifo */
ir_raw_event_handle(dev->rdev);
return IRQ_HANDLED;
}
static void redrat3_process_ir_data(struct redrat3_dev *rr3)
{
DEFINE_IR_RAW_EVENT(rawir);
struct redrat3_signal_header header;
struct device *dev;
int i;
unsigned long delay;
u32 mod_freq, single_len;
u16 *len_vals;
u8 *data_vals;
u32 tmp32;
u16 tmp16;
char *sig_data;
if (!rr3) {
pr_err("%s called with no context!\n", __func__);
return;
}
rr3_ftr(rr3->dev, "Entered %s\n", __func__);
dev = rr3->dev;
sig_data = rr3->pbuf;
header.length = rr3->pktlen;
header.transfer_type = rr3->pkttype;
/* Sanity check */
if (!(header.length >= RR3_HEADER_LENGTH))
dev_warn(dev, "read returned less than rr3 header len\n");
delay = usecs_to_jiffies(rr3->rc->timeout / 1000);
mod_timer(&rr3->rx_timeout, jiffies + delay);
memcpy(&tmp32, sig_data + RR3_PAUSE_OFFSET, sizeof(tmp32));
header.pause = be32_to_cpu(tmp32);
memcpy(&tmp16, sig_data + RR3_FREQ_COUNT_OFFSET, sizeof(tmp16));
header.mod_freq_count = be16_to_cpu(tmp16);
memcpy(&tmp16, sig_data + RR3_NUM_PERIOD_OFFSET, sizeof(tmp16));
header.no_periods = be16_to_cpu(tmp16);
header.max_lengths = sig_data[RR3_MAX_LENGTHS_OFFSET];
header.no_lengths = sig_data[RR3_NUM_LENGTHS_OFFSET];
memcpy(&tmp16, sig_data + RR3_MAX_SIGS_OFFSET, sizeof(tmp16));
header.max_sig_size = be16_to_cpu(tmp16);
memcpy(&tmp16, sig_data + RR3_NUM_SIGS_OFFSET, sizeof(tmp16));
header.sig_size = be16_to_cpu(tmp16);
header.no_repeats= sig_data[RR3_REPEATS_OFFSET];
if (debug) {
redrat3_dump_signal_header(&header);
redrat3_dump_signal_data(sig_data, header.sig_size);
}
mod_freq = redrat3_val_to_mod_freq(&header);
rr3_dbg(dev, "Got mod_freq of %u\n", mod_freq);
/* Here we pull out the 'length' values from the signal */
len_vals = (u16 *)(sig_data + RR3_HEADER_LENGTH);
data_vals = sig_data + RR3_HEADER_LENGTH +
(header.max_lengths * sizeof(u16));
/* process each rr3 encoded byte into an int */
for (i = 0; i < header.sig_size; i++) {
u16 val = len_vals[data_vals[i]];
single_len = redrat3_len_to_us((u32)be16_to_cpu(val));
/* cap the value to IR_MAX_DURATION */
single_len &= IR_MAX_DURATION;
/* we should always get pulse/space/pulse/space samples */
if (i % 2)
rawir.pulse = false;
else
rawir.pulse = true;
rawir.duration = US_TO_NS(single_len);
rr3_dbg(dev, "storing %s with duration %d (i: %d)\n",
rawir.pulse ? "pulse" : "space", rawir.duration, i);
ir_raw_event_store_with_filter(rr3->rc, &rawir);
}
/* add a trailing space, if need be */
if (i % 2) {
rawir.pulse = false;
/* this duration is made up, and may not be ideal... */
rawir.duration = rr3->rc->timeout / 2;
rr3_dbg(dev, "storing trailing space with duration %d\n",
rawir.duration);
ir_raw_event_store_with_filter(rr3->rc, &rawir);
}
rr3_dbg(dev, "calling ir_raw_event_handle\n");
ir_raw_event_handle(rr3->rc);
return;
}
static void redrat3_process_ir_data(struct redrat3_dev *rr3)
{
DEFINE_IR_RAW_EVENT(rawir);
struct redrat3_signal_header header;
struct device *dev;
int i, trailer = 0;
unsigned long delay;
u32 mod_freq, single_len;
u16 *len_vals;
u8 *data_vals;
u32 tmp32;
u16 tmp16;
char *sig_data;
if (!rr3) {
pr_err("%s called with no context!\n", __func__);
return;
}
rr3_ftr(rr3->dev, "Entered %s\n", __func__);
dev = rr3->dev;
sig_data = rr3->pbuf;
header.length = rr3->pktlen;
header.transfer_type = rr3->pkttype;
/* */
if (!(header.length >= RR3_HEADER_LENGTH))
dev_warn(dev, "read returned less than rr3 header len\n");
/* */
delay = usecs_to_jiffies(rr3->hw_timeout);
mod_timer(&rr3->rx_timeout, jiffies + delay);
memcpy(&tmp32, sig_data + RR3_PAUSE_OFFSET, sizeof(tmp32));
header.pause = be32_to_cpu(tmp32);
memcpy(&tmp16, sig_data + RR3_FREQ_COUNT_OFFSET, sizeof(tmp16));
header.mod_freq_count = be16_to_cpu(tmp16);
memcpy(&tmp16, sig_data + RR3_NUM_PERIOD_OFFSET, sizeof(tmp16));
header.no_periods = be16_to_cpu(tmp16);
header.max_lengths = sig_data[RR3_MAX_LENGTHS_OFFSET];
header.no_lengths = sig_data[RR3_NUM_LENGTHS_OFFSET];
memcpy(&tmp16, sig_data + RR3_MAX_SIGS_OFFSET, sizeof(tmp16));
header.max_sig_size = be16_to_cpu(tmp16);
memcpy(&tmp16, sig_data + RR3_NUM_SIGS_OFFSET, sizeof(tmp16));
header.sig_size = be16_to_cpu(tmp16);
header.no_repeats= sig_data[RR3_REPEATS_OFFSET];
if (debug) {
redrat3_dump_signal_header(&header);
redrat3_dump_signal_data(sig_data, header.sig_size);
}
mod_freq = redrat3_val_to_mod_freq(&header);
rr3_dbg(dev, "Got mod_freq of %u\n", mod_freq);
/* */
len_vals = (u16 *)(sig_data + RR3_HEADER_LENGTH);
data_vals = sig_data + RR3_HEADER_LENGTH +
(header.max_lengths * sizeof(u16));
/* */
for (i = 0; i < header.sig_size; i++) {
u16 val = len_vals[data_vals[i]];
single_len = redrat3_len_to_us((u32)be16_to_cpu(val));
/* */
if (i % 2)
rawir.pulse = false;
else
rawir.pulse = true;
rawir.duration = US_TO_NS(single_len);
/* */
if (i == 0)
trailer = rawir.duration;
/* */
rawir.duration &= IR_MAX_DURATION;
rr3_dbg(dev, "storing %s with duration %d (i: %d)\n",
rawir.pulse ? "pulse" : "space", rawir.duration, i);
ir_raw_event_store_with_filter(rr3->rc, &rawir);
}
/* */
if (i % 2) {
rawir.pulse = false;
/* */
if (trailer < US_TO_NS(1000))
rawir.duration = US_TO_NS(2800);
else
rawir.duration = trailer;
rr3_dbg(dev, "storing trailing space with duration %d\n",
rawir.duration);
ir_raw_event_store_with_filter(rr3->rc, &rawir);
}
rr3_dbg(dev, "calling ir_raw_event_handle\n");
ir_raw_event_handle(rr3->rc);
return;
}
static void process_ir_data(struct iguanair *ir, unsigned len)
{
if (len >= 4 && ir->buf_in[0] == 0 && ir->buf_in[1] == 0) {
switch (ir->buf_in[3]) {
case CMD_GET_VERSION:
if (len == 6) {
ir->version = (ir->buf_in[5] << 8) |
ir->buf_in[4];
complete(&ir->completion);
}
break;
case CMD_GET_BUFSIZE:
if (len >= 5) {
ir->bufsize = ir->buf_in[4];
complete(&ir->completion);
}
break;
case CMD_GET_FEATURES:
if (len > 5) {
ir->cycle_overhead = ir->buf_in[5];
complete(&ir->completion);
}
break;
case CMD_TX_OVERFLOW:
ir->tx_overflow = true;
case CMD_RECEIVER_OFF:
case CMD_RECEIVER_ON:
case CMD_SEND:
complete(&ir->completion);
break;
case CMD_RX_OVERFLOW:
dev_warn(ir->dev, "receive overflow\n");
ir_raw_event_reset(ir->rc);
break;
default:
dev_warn(ir->dev, "control code %02x received\n",
ir->buf_in[3]);
break;
}
} else if (len >= 7) {
DEFINE_IR_RAW_EVENT(rawir);
unsigned i;
bool event = false;
init_ir_raw_event(&rawir);
for (i = 0; i < 7; i++) {
if (ir->buf_in[i] == 0x80) {
rawir.pulse = false;
rawir.duration = US_TO_NS(21845);
} else {
rawir.pulse = (ir->buf_in[i] & 0x80) == 0;
rawir.duration = ((ir->buf_in[i] & 0x7f) + 1) *
RX_RESOLUTION;
}
if (ir_raw_event_store_with_filter(ir->rc, &rawir))
event = true;
}
if (event)
ir_raw_event_handle(ir->rc);
}
}
static void redrat3_process_ir_data(struct redrat3_dev *rr3)
{
DEFINE_IR_RAW_EVENT(rawir);
struct device *dev;
unsigned i, trailer = 0;
unsigned sig_size, single_len, offset, val;
unsigned long delay;
u32 mod_freq;
if (!rr3) {
pr_err("%s called with no context!\n", __func__);
return;
}
rr3_ftr(rr3->dev, "Entered %s\n", __func__);
dev = rr3->dev;
/* Make sure we reset the IR kfifo after a bit of inactivity */
delay = usecs_to_jiffies(rr3->hw_timeout);
mod_timer(&rr3->rx_timeout, jiffies + delay);
mod_freq = redrat3_val_to_mod_freq(&rr3->irdata);
rr3_dbg(dev, "Got mod_freq of %u\n", mod_freq);
/* process each rr3 encoded byte into an int */
sig_size = be16_to_cpu(rr3->irdata.sig_size);
for (i = 0; i < sig_size; i++) {
offset = rr3->irdata.sigdata[i];
val = get_unaligned_be16(&rr3->irdata.lens[offset]);
single_len = redrat3_len_to_us(val);
/* we should always get pulse/space/pulse/space samples */
if (i % 2)
rawir.pulse = false;
else
rawir.pulse = true;
rawir.duration = US_TO_NS(single_len);
/* Save initial pulse length to fudge trailer */
if (i == 0)
trailer = rawir.duration;
/* cap the value to IR_MAX_DURATION */
rawir.duration &= IR_MAX_DURATION;
rr3_dbg(dev, "storing %s with duration %d (i: %d)\n",
rawir.pulse ? "pulse" : "space", rawir.duration, i);
ir_raw_event_store_with_filter(rr3->rc, &rawir);
}
/* add a trailing space, if need be */
if (i % 2) {
rawir.pulse = false;
/* this duration is made up, and may not be ideal... */
if (trailer < US_TO_NS(1000))
rawir.duration = US_TO_NS(2800);
else
rawir.duration = trailer;
rr3_dbg(dev, "storing trailing space with duration %d\n",
rawir.duration);
ir_raw_event_store_with_filter(rr3->rc, &rawir);
}
rr3_dbg(dev, "calling ir_raw_event_handle\n");
ir_raw_event_handle(rr3->rc);
}
static void st_rc_send_lirc_timeout(struct rc_dev *rdev)
{
DEFINE_IR_RAW_EVENT(ev);
ev.timeout = true;
ir_raw_event_store(rdev, &ev);
}
