#include <linux/pm_wakeup.h>
#include <media/rc-core.h>
-#define DRIVER_VERSION "1.93"
+#define DRIVER_VERSION "1.94"
#define DRIVER_AUTHOR "Jarod Wilson <jarod@redhat.com>"
#define DRIVER_DESC "Windows Media Center Ed. eHome Infrared Transceiver " \
"device driver"
u32 mce_gen3:1;
u32 tx_mask_normal:1;
u32 no_tx:1;
+ /*
+ * 2nd IR receiver (short-range, wideband) for learning mode:
+ * 0, absent 2nd receiver (rx2)
+ * 1, rx2 present
+ * 2, rx2 which under counts IR carrier cycles
+ */
+ u32 rx2;
int ir_intfnum;
[MCE_GEN1] = {
.mce_gen1 = 1,
.tx_mask_normal = 1,
+ .rx2 = 2,
},
[MCE_GEN2] = {
.mce_gen2 = 1,
+ .rx2 = 2,
},
[MCE_GEN2_NO_TX] = {
.mce_gen2 = 1,
[MCE_GEN2_TX_INV] = {
.mce_gen2 = 1,
.tx_mask_normal = 1,
+ .rx2 = 1,
},
[MCE_GEN3] = {
.mce_gen3 = 1,
.tx_mask_normal = 1,
+ .rx2 = 2,
},
[POLARIS_EVK] = {
/*
* to allow testing it
*/
.name = "Conexant Hybrid TV (cx231xx) MCE IR",
+ .rx2 = 2,
},
[CX_HYBRID_TV] = {
.no_tx = 1, /* tx isn't wired up at all */
[MULTIFUNCTION] = {
.mce_gen2 = 1,
.ir_intfnum = 2,
+ .rx2 = 2,
},
[TIVO_KIT] = {
.mce_gen2 = 1,
.rc_map = RC_MAP_TIVO,
+ .rx2 = 2,
},
[EVROMEDIA_FULL_HYBRID_FULLHD] = {
.name = "Evromedia USB Full Hybrid Full HD",
struct rc_dev *rc;
/* optional features we can enable */
- bool learning_enabled;
+ bool carrier_report_enabled;
+ bool wideband_rx_enabled; /* aka learning mode, short-range rx */
/* core device bits */
struct device *dev;
u32 tx_mask_normal:1;
u32 microsoft_gen1:1;
u32 no_tx:1;
+ u32 rx2;
} flags;
/* transmit support */
u8 num_rxports; /* number of receive sensors */
u8 txports_cabled; /* bitmask of transmitters with cable */
u8 rxports_active; /* bitmask of active receive sensors */
+ bool learning_active; /* wideband rx is active */
+
+ /* receiver carrier frequency detection support */
+ u32 pulse_tunit; /* IR pulse "on" cumulative time units */
+ u32 pulse_count; /* pulse "on" count in measurement interval */
/*
* support for async error handler mceusb_deferred_kevent()
/* aka MCE_RSP_EQIRRXCFCNT */
if (out)
dev_dbg(dev, "Get receive sensor");
- else if (ir->learning_enabled)
- dev_dbg(dev, "RX pulse count: %d",
+ else
+ dev_dbg(dev, "RX carrier cycle count: %d",
((data[0] << 8) | data[1]));
break;
case MCE_RSP_EQIRNUMPORTS:
return 0;
}
+/*
+ * Select or deselect the 2nd receiver port.
+ * Second receiver is learning mode, wide-band, short-range receiver.
+ * Only one receiver (long or short range) may be active at a time.
+ */
+static int mceusb_set_rx_wideband(struct rc_dev *dev, int enable)
+{
+ struct mceusb_dev *ir = dev->priv;
+ unsigned char cmdbuf[3] = { MCE_CMD_PORT_IR,
+ MCE_CMD_SETIRRXPORTEN, 0x00 };
+
+ dev_dbg(ir->dev, "select %s-range receive sensor",
+ enable ? "short" : "long");
+ if (enable) {
+ ir->wideband_rx_enabled = true;
+ cmdbuf[2] = 2; /* port 2 is short range receiver */
+ } else {
+ ir->wideband_rx_enabled = false;
+ cmdbuf[2] = 1; /* port 1 is long range receiver */
+ }
+ mce_async_out(ir, cmdbuf, sizeof(cmdbuf));
+ /* response from device sets ir->learning_active */
+
+ return 0;
+}
+
+/*
+ * Enable/disable receiver carrier frequency pass through reporting.
+ * Only the short-range receiver has carrier frequency measuring capability.
+ * Implicitly select this receiver when enabling carrier frequency reporting.
+ */
+static int mceusb_set_rx_carrier_report(struct rc_dev *dev, int enable)
+{
+ struct mceusb_dev *ir = dev->priv;
+ unsigned char cmdbuf[3] = { MCE_CMD_PORT_IR,
+ MCE_CMD_SETIRRXPORTEN, 0x00 };
+
+ dev_dbg(ir->dev, "%s short-range receiver carrier reporting",
+ enable ? "enable" : "disable");
+ if (enable) {
+ ir->carrier_report_enabled = true;
+ if (!ir->learning_active) {
+ cmdbuf[2] = 2; /* port 2 is short range receiver */
+ mce_async_out(ir, cmdbuf, sizeof(cmdbuf));
+ }
+ } else {
+ ir->carrier_report_enabled = false;
+ /*
+ * Revert to normal (long-range) receiver only if the
+ * wideband (short-range) receiver wasn't explicitly
+ * enabled.
+ */
+ if (ir->learning_active && !ir->wideband_rx_enabled) {
+ cmdbuf[2] = 1; /* port 1 is long range receiver */
+ mce_async_out(ir, cmdbuf, sizeof(cmdbuf));
+ }
+ }
+
+ return 0;
+}
+
/*
* We don't do anything but print debug spew for many of the command bits
* we receive from the hardware, but some of them are useful information
*/
static void mceusb_handle_command(struct mceusb_dev *ir, int index)
{
+ DEFINE_IR_RAW_EVENT(rawir);
u8 hi = ir->buf_in[index + 1] & 0xff;
u8 lo = ir->buf_in[index + 2] & 0xff;
+ u32 carrier_cycles;
+ u32 cycles_fix;
switch (ir->buf_in[index]) {
/* the one and only 5-byte return value command */
ir->num_txports = hi;
ir->num_rxports = lo;
break;
+ case MCE_RSP_EQIRRXCFCNT:
+ /*
+ * The carrier cycle counter can overflow and wrap around
+ * without notice from the device. So frequency measurement
+ * will be inaccurate with long duration IR.
+ *
+ * The long-range (non learning) receiver always reports
+ * zero count so we always ignore its report.
+ */
+ if (ir->carrier_report_enabled && ir->learning_active &&
+ ir->pulse_tunit > 0) {
+ carrier_cycles = (hi << 8 | lo);
+ /*
+ * Adjust carrier cycle count by adding
+ * 1 missed count per pulse "on"
+ */
+ cycles_fix = ir->flags.rx2 == 2 ? ir->pulse_count : 0;
+ rawir.carrier_report = 1;
+ rawir.carrier = (1000000u / MCE_TIME_UNIT) *
+ (carrier_cycles + cycles_fix) /
+ ir->pulse_tunit;
+ dev_dbg(ir->dev, "RX carrier frequency %u Hz (pulse count = %u, cycles = %u, duration = %u, rx2 = %u)",
+ rawir.carrier, ir->pulse_count, carrier_cycles,
+ ir->pulse_tunit, ir->flags.rx2);
+ ir_raw_event_store(ir->rc, &rawir);
+ }
+ break;
/* 1-byte return value commands */
case MCE_RSP_EQEMVER:
ir->tx_mask = hi;
break;
case MCE_RSP_EQIRRXPORTEN:
- ir->learning_enabled = ((hi & 0x02) == 0x02);
- ir->rxports_active = hi;
+ ir->learning_active = ((hi & 0x02) == 0x02);
+ if (ir->rxports_active != hi) {
+ dev_info(ir->dev, "%s-range (0x%x) receiver active",
+ ir->learning_active ? "short" : "long", hi);
+ ir->rxports_active = hi;
+ }
break;
case MCE_RSP_CMD_ILLEGAL:
ir->need_reset = true;
ir->rem--;
init_ir_raw_event(&rawir);
rawir.pulse = ((ir->buf_in[i] & MCE_PULSE_BIT) != 0);
- rawir.duration = (ir->buf_in[i] & MCE_PULSE_MASK)
- * US_TO_NS(MCE_TIME_UNIT);
+ rawir.duration = (ir->buf_in[i] & MCE_PULSE_MASK);
+ if (rawir.pulse) {
+ ir->pulse_tunit += rawir.duration;
+ ir->pulse_count++;
+ }
+ rawir.duration *= US_TO_NS(MCE_TIME_UNIT);
- dev_dbg(ir->dev, "Storing %s with duration %u",
+ dev_dbg(ir->dev, "Storing %s %u ns (%02x)",
rawir.pulse ? "pulse" : "space",
- rawir.duration);
+ rawir.duration, ir->buf_in[i]);
if (ir_raw_event_store_with_filter(ir->rc, &rawir))
event = true;
ir->rem = (ir->cmd & MCE_PACKET_LENGTH_MASK);
mceusb_dev_printdata(ir, ir->buf_in, buf_len,
i, ir->rem + 1, false);
- if (ir->rem)
+ if (ir->rem) {
ir->parser_state = PARSE_IRDATA;
- else
+ } else {
ir_raw_event_reset(ir->rc);
+ ir->pulse_tunit = 0;
+ ir->pulse_count = 0;
+ }
break;
}
rc->s_tx_carrier = mceusb_set_tx_carrier;
rc->tx_ir = mceusb_tx_ir;
}
+ if (ir->flags.rx2 > 0) {
+ rc->s_learning_mode = mceusb_set_rx_wideband;
+ rc->s_carrier_report = mceusb_set_rx_carrier_report;
+ }
rc->driver_name = DRIVER_NAME;
switch (le16_to_cpu(udev->descriptor.idVendor)) {
ir->flags.microsoft_gen1 = is_microsoft_gen1;
ir->flags.tx_mask_normal = tx_mask_normal;
ir->flags.no_tx = mceusb_model[model].no_tx;
+ ir->flags.rx2 = mceusb_model[model].rx2;
ir->model = model;
/* Saving usb interface data for use by the transmitter routine */
projects / nvme.git / commitdiff