summaryrefslogtreecommitdiffstats
path: root/drivers/media/rc
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/media/rc')
-rw-r--r--drivers/media/rc/img-ir/Kconfig15
-rw-r--r--drivers/media/rc/img-ir/Makefile2
-rw-r--r--drivers/media/rc/img-ir/img-ir-hw.c84
-rw-r--r--drivers/media/rc/img-ir/img-ir-hw.h24
-rw-r--r--drivers/media/rc/img-ir/img-ir-jvc.c8
-rw-r--r--drivers/media/rc/img-ir/img-ir-nec.c24
-rw-r--r--drivers/media/rc/img-ir/img-ir-rc5.c88
-rw-r--r--drivers/media/rc/img-ir/img-ir-rc6.c117
-rw-r--r--drivers/media/rc/img-ir/img-ir-sanyo.c8
-rw-r--r--drivers/media/rc/img-ir/img-ir-sharp.c8
-rw-r--r--drivers/media/rc/img-ir/img-ir-sony.c12
-rw-r--r--drivers/media/rc/lirc_dev.c6
-rw-r--r--drivers/media/rc/rc-main.c14
-rw-r--r--drivers/media/rc/sunxi-cir.c46
14 files changed, 393 insertions, 63 deletions
diff --git a/drivers/media/rc/img-ir/Kconfig b/drivers/media/rc/img-ir/Kconfig
index 580715c7fc5..a896d3c83a1 100644
--- a/drivers/media/rc/img-ir/Kconfig
+++ b/drivers/media/rc/img-ir/Kconfig
@@ -60,3 +60,18 @@ config IR_IMG_SANYO
help
Say Y here to enable support for the Sanyo protocol (used by Sanyo,
Aiwa, Chinon remotes) in the ImgTec infrared decoder block.
+
+config IR_IMG_RC5
+ bool "Philips RC5 protocol support"
+ depends on IR_IMG_HW
+ help
+ Say Y here to enable support for the RC5 protocol in the ImgTec
+ infrared decoder block.
+
+config IR_IMG_RC6
+ bool "Philips RC6 protocol support"
+ depends on IR_IMG_HW
+ help
+ Say Y here to enable support for the RC6 protocol in the ImgTec
+ infrared decoder block.
+ Note: This version only supports mode 0.
diff --git a/drivers/media/rc/img-ir/Makefile b/drivers/media/rc/img-ir/Makefile
index 92a459d9950..8e6d458e66a 100644
--- a/drivers/media/rc/img-ir/Makefile
+++ b/drivers/media/rc/img-ir/Makefile
@@ -6,6 +6,8 @@ img-ir-$(CONFIG_IR_IMG_JVC) += img-ir-jvc.o
img-ir-$(CONFIG_IR_IMG_SONY) += img-ir-sony.o
img-ir-$(CONFIG_IR_IMG_SHARP) += img-ir-sharp.o
img-ir-$(CONFIG_IR_IMG_SANYO) += img-ir-sanyo.o
+img-ir-$(CONFIG_IR_IMG_RC5) += img-ir-rc5.o
+img-ir-$(CONFIG_IR_IMG_RC6) += img-ir-rc6.o
img-ir-objs := $(img-ir-y)
obj-$(CONFIG_IR_IMG) += img-ir.o
diff --git a/drivers/media/rc/img-ir/img-ir-hw.c b/drivers/media/rc/img-ir/img-ir-hw.c
index 2fd47c9bf5d..7bb71bc9f53 100644
--- a/drivers/media/rc/img-ir/img-ir-hw.c
+++ b/drivers/media/rc/img-ir/img-ir-hw.c
@@ -42,6 +42,12 @@ static struct img_ir_decoder *img_ir_decoders[] = {
#ifdef CONFIG_IR_IMG_SANYO
&img_ir_sanyo,
#endif
+#ifdef CONFIG_IR_IMG_RC5
+ &img_ir_rc5,
+#endif
+#ifdef CONFIG_IR_IMG_RC6
+ &img_ir_rc6,
+#endif
NULL
};
@@ -52,6 +58,11 @@ static struct img_ir_decoder *img_ir_decoders[] = {
#define IMG_IR_QUIRK_CODE_BROKEN 0x1 /* Decode is broken */
#define IMG_IR_QUIRK_CODE_LEN_INCR 0x2 /* Bit length needs increment */
+/*
+ * The decoder generates rapid interrupts without actually having
+ * received any new data after an incomplete IR code is decoded.
+ */
+#define IMG_IR_QUIRK_CODE_IRQ 0x4
/* functions for preprocessing timings, ensuring max is set */
@@ -542,6 +553,7 @@ static void img_ir_set_decoder(struct img_ir_priv *priv,
*/
spin_unlock_irq(&priv->lock);
del_timer_sync(&hw->end_timer);
+ del_timer_sync(&hw->suspend_timer);
spin_lock_irq(&priv->lock);
hw->stopping = false;
@@ -806,20 +818,24 @@ static void img_ir_handle_data(struct img_ir_priv *priv, u32 len, u64 raw)
struct img_ir_priv_hw *hw = &priv->hw;
const struct img_ir_decoder *dec = hw->decoder;
int ret = IMG_IR_SCANCODE;
- u32 scancode;
- enum rc_type protocol = RC_TYPE_UNKNOWN;
+ struct img_ir_scancode_req request;
+
+ request.protocol = RC_TYPE_UNKNOWN;
+ request.toggle = 0;
if (dec->scancode)
- ret = dec->scancode(len, raw, &protocol, &scancode, hw->enabled_protocols);
+ ret = dec->scancode(len, raw, hw->enabled_protocols, &request);
else if (len >= 32)
- scancode = (u32)raw;
+ request.scancode = (u32)raw;
else if (len < 32)
- scancode = (u32)raw & ((1 << len)-1);
+ request.scancode = (u32)raw & ((1 << len)-1);
dev_dbg(priv->dev, "data (%u bits) = %#llx\n",
len, (unsigned long long)raw);
if (ret == IMG_IR_SCANCODE) {
- dev_dbg(priv->dev, "decoded scan code %#x\n", scancode);
- rc_keydown(hw->rdev, protocol, scancode, 0);
+ dev_dbg(priv->dev, "decoded scan code %#x, toggle %u\n",
+ request.scancode, request.toggle);
+ rc_keydown(hw->rdev, request.protocol, request.scancode,
+ request.toggle);
img_ir_end_repeat(priv);
} else if (ret == IMG_IR_REPEATCODE) {
if (hw->mode == IMG_IR_M_REPEATING) {
@@ -857,6 +873,29 @@ static void img_ir_end_timer(unsigned long arg)
spin_unlock_irq(&priv->lock);
}
+/*
+ * Timer function to re-enable the current protocol after it had been
+ * cleared when invalid interrupts were generated due to a quirk in the
+ * img-ir decoder.
+ */
+static void img_ir_suspend_timer(unsigned long arg)
+{
+ struct img_ir_priv *priv = (struct img_ir_priv *)arg;
+
+ spin_lock_irq(&priv->lock);
+ /*
+ * Don't overwrite enabled valid/match IRQs if they have already been
+ * changed by e.g. a filter change.
+ */
+ if ((priv->hw.quirk_suspend_irq & IMG_IR_IRQ_EDGE) ==
+ img_ir_read(priv, IMG_IR_IRQ_ENABLE))
+ img_ir_write(priv, IMG_IR_IRQ_ENABLE,
+ priv->hw.quirk_suspend_irq);
+ /* enable */
+ img_ir_write(priv, IMG_IR_CONTROL, priv->hw.reg_timings.ctrl);
+ spin_unlock_irq(&priv->lock);
+}
+
#ifdef CONFIG_COMMON_CLK
static void img_ir_change_frequency(struct img_ir_priv *priv,
struct clk_notifier_data *change)
@@ -922,15 +961,38 @@ void img_ir_isr_hw(struct img_ir_priv *priv, u32 irq_status)
if (!hw->decoder)
return;
+ ct = hw->decoder->control.code_type;
+
ir_status = img_ir_read(priv, IMG_IR_STATUS);
- if (!(ir_status & (IMG_IR_RXDVAL | IMG_IR_RXDVALD2)))
+ if (!(ir_status & (IMG_IR_RXDVAL | IMG_IR_RXDVALD2))) {
+ if (!(priv->hw.ct_quirks[ct] & IMG_IR_QUIRK_CODE_IRQ) ||
+ hw->stopping)
+ return;
+ /*
+ * The below functionality is added as a work around to stop
+ * multiple Interrupts generated when an incomplete IR code is
+ * received by the decoder.
+ * The decoder generates rapid interrupts without actually
+ * having received any new data. After a single interrupt it's
+ * expected to clear up, but instead multiple interrupts are
+ * rapidly generated. only way to get out of this loop is to
+ * reset the control register after a short delay.
+ */
+ img_ir_write(priv, IMG_IR_CONTROL, 0);
+ hw->quirk_suspend_irq = img_ir_read(priv, IMG_IR_IRQ_ENABLE);
+ img_ir_write(priv, IMG_IR_IRQ_ENABLE,
+ hw->quirk_suspend_irq & IMG_IR_IRQ_EDGE);
+
+ /* Timer activated to re-enable the protocol. */
+ mod_timer(&hw->suspend_timer,
+ jiffies + msecs_to_jiffies(5));
return;
+ }
ir_status &= ~(IMG_IR_RXDVAL | IMG_IR_RXDVALD2);
img_ir_write(priv, IMG_IR_STATUS, ir_status);
len = (ir_status & IMG_IR_RXDLEN) >> IMG_IR_RXDLEN_SHIFT;
/* some versions report wrong length for certain code types */
- ct = hw->decoder->control.code_type;
if (hw->ct_quirks[ct] & IMG_IR_QUIRK_CODE_LEN_INCR)
++len;
@@ -972,7 +1034,7 @@ static void img_ir_probe_hw_caps(struct img_ir_priv *priv)
hw->ct_quirks[IMG_IR_CODETYPE_PULSELEN]
|= IMG_IR_QUIRK_CODE_LEN_INCR;
hw->ct_quirks[IMG_IR_CODETYPE_BIPHASE]
- |= IMG_IR_QUIRK_CODE_BROKEN;
+ |= IMG_IR_QUIRK_CODE_IRQ;
hw->ct_quirks[IMG_IR_CODETYPE_2BITPULSEPOS]
|= IMG_IR_QUIRK_CODE_BROKEN;
}
@@ -991,6 +1053,8 @@ int img_ir_probe_hw(struct img_ir_priv *priv)
/* Set up the end timer */
setup_timer(&hw->end_timer, img_ir_end_timer, (unsigned long)priv);
+ setup_timer(&hw->suspend_timer, img_ir_suspend_timer,
+ (unsigned long)priv);
/* Register a clock notifier */
if (!IS_ERR(priv->clk)) {
diff --git a/drivers/media/rc/img-ir/img-ir-hw.h b/drivers/media/rc/img-ir/img-ir-hw.h
index 5c2b216c5fe..91a29773166 100644
--- a/drivers/media/rc/img-ir/img-ir-hw.h
+++ b/drivers/media/rc/img-ir/img-ir-hw.h
@@ -133,6 +133,20 @@ struct img_ir_timing_regvals {
#define IMG_IR_REPEATCODE 1 /* repeat the previous code */
/**
+ * struct img_ir_scancode_req - Scancode request data.
+ * @protocol: Protocol code of received message (defaults to
+ * RC_TYPE_UNKNOWN).
+ * @scancode: Scan code of received message (must be written by
+ * handler if IMG_IR_SCANCODE is returned).
+ * @toggle: Toggle bit (defaults to 0).
+ */
+struct img_ir_scancode_req {
+ enum rc_type protocol;
+ u32 scancode;
+ u8 toggle;
+};
+
+/**
* struct img_ir_decoder - Decoder settings for an IR protocol.
* @type: Protocol types bitmap.
* @tolerance: Timing tolerance as a percentage (default 10%).
@@ -162,8 +176,8 @@ struct img_ir_decoder {
struct img_ir_control control;
/* scancode logic */
- int (*scancode)(int len, u64 raw, enum rc_type *protocol,
- u32 *scancode, u64 enabled_protocols);
+ int (*scancode)(int len, u64 raw, u64 enabled_protocols,
+ struct img_ir_scancode_req *request);
int (*filter)(const struct rc_scancode_filter *in,
struct img_ir_filter *out, u64 protocols);
};
@@ -173,6 +187,8 @@ extern struct img_ir_decoder img_ir_jvc;
extern struct img_ir_decoder img_ir_sony;
extern struct img_ir_decoder img_ir_sharp;
extern struct img_ir_decoder img_ir_sanyo;
+extern struct img_ir_decoder img_ir_rc5;
+extern struct img_ir_decoder img_ir_rc6;
/**
* struct img_ir_reg_timings - Reg values for decoder timings at clock rate.
@@ -204,6 +220,7 @@ enum img_ir_mode {
* @rdev: Remote control device
* @clk_nb: Notifier block for clock notify events.
* @end_timer: Timer until repeat timeout.
+ * @suspend_timer: Timer to re-enable protocol.
* @decoder: Current decoder settings.
* @enabled_protocols: Currently enabled protocols.
* @clk_hz: Current core clock rate in Hz.
@@ -214,12 +231,14 @@ enum img_ir_mode {
* @stopping: Indicates that decoder is being taken down and timers
* should not be restarted.
* @suspend_irqen: Saved IRQ enable mask over suspend.
+ * @quirk_suspend_irq: Saved IRQ enable mask over quirk suspend timer.
*/
struct img_ir_priv_hw {
unsigned int ct_quirks[4];
struct rc_dev *rdev;
struct notifier_block clk_nb;
struct timer_list end_timer;
+ struct timer_list suspend_timer;
const struct img_ir_decoder *decoder;
u64 enabled_protocols;
unsigned long clk_hz;
@@ -230,6 +249,7 @@ struct img_ir_priv_hw {
enum img_ir_mode mode;
bool stopping;
u32 suspend_irqen;
+ u32 quirk_suspend_irq;
};
static inline bool img_ir_hw_enabled(struct img_ir_priv_hw *hw)
diff --git a/drivers/media/rc/img-ir/img-ir-jvc.c b/drivers/media/rc/img-ir/img-ir-jvc.c
index a60dda8bf70..d3e2fc0bcfe 100644
--- a/drivers/media/rc/img-ir/img-ir-jvc.c
+++ b/drivers/media/rc/img-ir/img-ir-jvc.c
@@ -12,8 +12,8 @@
#include "img-ir-hw.h"
/* Convert JVC data to a scancode */
-static int img_ir_jvc_scancode(int len, u64 raw, enum rc_type *protocol,
- u32 *scancode, u64 enabled_protocols)
+static int img_ir_jvc_scancode(int len, u64 raw, u64 enabled_protocols,
+ struct img_ir_scancode_req *request)
{
unsigned int cust, data;
@@ -23,8 +23,8 @@ static int img_ir_jvc_scancode(int len, u64 raw, enum rc_type *protocol,
cust = (raw >> 0) & 0xff;
data = (raw >> 8) & 0xff;
- *protocol = RC_TYPE_JVC;
- *scancode = cust << 8 | data;
+ request->protocol = RC_TYPE_JVC;
+ request->scancode = cust << 8 | data;
return IMG_IR_SCANCODE;
}
diff --git a/drivers/media/rc/img-ir/img-ir-nec.c b/drivers/media/rc/img-ir/img-ir-nec.c
index 739897549b5..27a7ea8f126 100644
--- a/drivers/media/rc/img-ir/img-ir-nec.c
+++ b/drivers/media/rc/img-ir/img-ir-nec.c
@@ -13,8 +13,8 @@
#include <linux/bitrev.h>
/* Convert NEC data to a scancode */
-static int img_ir_nec_scancode(int len, u64 raw, enum rc_type *protocol,
- u32 *scancode, u64 enabled_protocols)
+static int img_ir_nec_scancode(int len, u64 raw, u64 enabled_protocols,
+ struct img_ir_scancode_req *request)
{
unsigned int addr, addr_inv, data, data_inv;
/* a repeat code has no data */
@@ -30,23 +30,23 @@ static int img_ir_nec_scancode(int len, u64 raw, enum rc_type *protocol,
if ((data_inv ^ data) != 0xff) {
/* 32-bit NEC (used by Apple and TiVo remotes) */
/* scan encoding: as transmitted, MSBit = first received bit */
- *scancode = bitrev8(addr) << 24 |
- bitrev8(addr_inv) << 16 |
- bitrev8(data) << 8 |
- bitrev8(data_inv);
+ request->scancode = bitrev8(addr) << 24 |
+ bitrev8(addr_inv) << 16 |
+ bitrev8(data) << 8 |
+ bitrev8(data_inv);
} else if ((addr_inv ^ addr) != 0xff) {
/* Extended NEC */
/* scan encoding: AAaaDD */
- *scancode = addr << 16 |
- addr_inv << 8 |
- data;
+ request->scancode = addr << 16 |
+ addr_inv << 8 |
+ data;
} else {
/* Normal NEC */
/* scan encoding: AADD */
- *scancode = addr << 8 |
- data;
+ request->scancode = addr << 8 |
+ data;
}
- *protocol = RC_TYPE_NEC;
+ request->protocol = RC_TYPE_NEC;
return IMG_IR_SCANCODE;
}
diff --git a/drivers/media/rc/img-ir/img-ir-rc5.c b/drivers/media/rc/img-ir/img-ir-rc5.c
new file mode 100644
index 00000000000..a8a28a377ee
--- /dev/null
+++ b/drivers/media/rc/img-ir/img-ir-rc5.c
@@ -0,0 +1,88 @@
+/*
+ * ImgTec IR Decoder setup for Philips RC-5 protocol.
+ *
+ * Copyright 2012-2014 Imagination Technologies Ltd.
+ *
+ * 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.
+ */
+
+#include "img-ir-hw.h"
+
+/* Convert RC5 data to a scancode */
+static int img_ir_rc5_scancode(int len, u64 raw, u64 enabled_protocols,
+ struct img_ir_scancode_req *request)
+{
+ unsigned int addr, cmd, tgl, start;
+
+ /* Quirk in the decoder shifts everything by 2 to the left. */
+ raw >>= 2;
+
+ start = (raw >> 13) & 0x01;
+ tgl = (raw >> 11) & 0x01;
+ addr = (raw >> 6) & 0x1f;
+ cmd = raw & 0x3f;
+ /*
+ * 12th bit is used to extend the command in extended RC5 and has
+ * no effect on standard RC5.
+ */
+ cmd += ((raw >> 12) & 0x01) ? 0 : 0x40;
+
+ if (!start)
+ return -EINVAL;
+
+ request->protocol = RC_TYPE_RC5;
+ request->scancode = addr << 8 | cmd;
+ request->toggle = tgl;
+ return IMG_IR_SCANCODE;
+}
+
+/* Convert RC5 scancode to RC5 data filter */
+static int img_ir_rc5_filter(const struct rc_scancode_filter *in,
+ struct img_ir_filter *out, u64 protocols)
+{
+ /* Not supported by the hw. */
+ return -EINVAL;
+}
+
+/*
+ * RC-5 decoder
+ * see http://www.sbprojects.com/knowledge/ir/rc5.php
+ */
+struct img_ir_decoder img_ir_rc5 = {
+ .type = RC_BIT_RC5,
+ .control = {
+ .bitoriend2 = 1,
+ .code_type = IMG_IR_CODETYPE_BIPHASE,
+ .decodend2 = 1,
+ },
+ /* main timings */
+ .tolerance = 16,
+ .unit = 888888, /* 1/36k*32=888.888microseconds */
+ .timings = {
+ /* 10 symbol */
+ .s10 = {
+ .pulse = { 1 },
+ .space = { 1 },
+ },
+
+ /* 11 symbol */
+ .s11 = {
+ .pulse = { 1 },
+ .space = { 1 },
+ },
+
+ /* free time */
+ .ft = {
+ .minlen = 14,
+ .maxlen = 14,
+ .ft_min = 5,
+ },
+ },
+
+ /* scancode logic */
+ .scancode = img_ir_rc5_scancode,
+ .filter = img_ir_rc5_filter,
+};
diff --git a/drivers/media/rc/img-ir/img-ir-rc6.c b/drivers/media/rc/img-ir/img-ir-rc6.c
new file mode 100644
index 00000000000..de1e2753496
--- /dev/null
+++ b/drivers/media/rc/img-ir/img-ir-rc6.c
@@ -0,0 +1,117 @@
+/*
+ * ImgTec IR Decoder setup for Philips RC-6 protocol.
+ *
+ * Copyright 2012-2014 Imagination Technologies Ltd.
+ *
+ * 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.
+ */
+
+#include "img-ir-hw.h"
+
+/* Convert RC6 data to a scancode */
+static int img_ir_rc6_scancode(int len, u64 raw, u64 enabled_protocols,
+ struct img_ir_scancode_req *request)
+{
+ unsigned int addr, cmd, mode, trl1, trl2;
+
+ /*
+ * Due to a side effect of the decoder handling the double length
+ * Trailer bit, the header information is a bit scrambled, and the
+ * raw data is shifted incorrectly.
+ * This workaround effectively recovers the header bits.
+ *
+ * The Header field should look like this:
+ *
+ * StartBit ModeBit2 ModeBit1 ModeBit0 TrailerBit
+ *
+ * But what we get is:
+ *
+ * ModeBit2 ModeBit1 ModeBit0 TrailerBit1 TrailerBit2
+ *
+ * The start bit is not important to recover the scancode.
+ */
+
+ raw >>= 27;
+
+ trl1 = (raw >> 17) & 0x01;
+ trl2 = (raw >> 16) & 0x01;
+
+ mode = (raw >> 18) & 0x07;
+ addr = (raw >> 8) & 0xff;
+ cmd = raw & 0xff;
+
+ /*
+ * Due to the above explained irregularity the trailer bits cannot
+ * have the same value.
+ */
+ if (trl1 == trl2)
+ return -EINVAL;
+
+ /* Only mode 0 supported for now */
+ if (mode)
+ return -EINVAL;
+
+ request->protocol = RC_TYPE_RC6_0;
+ request->scancode = addr << 8 | cmd;
+ request->toggle = trl2;
+ return IMG_IR_SCANCODE;
+}
+
+/* Convert RC6 scancode to RC6 data filter */
+static int img_ir_rc6_filter(const struct rc_scancode_filter *in,
+ struct img_ir_filter *out, u64 protocols)
+{
+ /* Not supported by the hw. */
+ return -EINVAL;
+}
+
+/*
+ * RC-6 decoder
+ * see http://www.sbprojects.com/knowledge/ir/rc6.php
+ */
+struct img_ir_decoder img_ir_rc6 = {
+ .type = RC_BIT_RC6_0,
+ .control = {
+ .bitorien = 1,
+ .code_type = IMG_IR_CODETYPE_BIPHASE,
+ .decoden = 1,
+ .decodinpol = 1,
+ },
+ /* main timings */
+ .tolerance = 20,
+ /*
+ * Due to a quirk in the img-ir decoder, default header values do
+ * not work, the values described below were extracted from
+ * successful RTL test cases.
+ */
+ .timings = {
+ /* leader symbol */
+ .ldr = {
+ .pulse = { 650 },
+ .space = { 660 },
+ },
+ /* 0 symbol */
+ .s00 = {
+ .pulse = { 370 },
+ .space = { 370 },
+ },
+ /* 01 symbol */
+ .s01 = {
+ .pulse = { 370 },
+ .space = { 370 },
+ },
+ /* free time */
+ .ft = {
+ .minlen = 21,
+ .maxlen = 21,
+ .ft_min = 2666, /* 2.666 ms */
+ },
+ },
+
+ /* scancode logic */
+ .scancode = img_ir_rc6_scancode,
+ .filter = img_ir_rc6_filter,
+};
diff --git a/drivers/media/rc/img-ir/img-ir-sanyo.c b/drivers/media/rc/img-ir/img-ir-sanyo.c
index 6b0653ecdf5..f394994ffc2 100644
--- a/drivers/media/rc/img-ir/img-ir-sanyo.c
+++ b/drivers/media/rc/img-ir/img-ir-sanyo.c
@@ -23,8 +23,8 @@
#include "img-ir-hw.h"
/* Convert Sanyo data to a scancode */
-static int img_ir_sanyo_scancode(int len, u64 raw, enum rc_type *protocol,
- u32 *scancode, u64 enabled_protocols)
+static int img_ir_sanyo_scancode(int len, u64 raw, u64 enabled_protocols,
+ struct img_ir_scancode_req *request)
{
unsigned int addr, addr_inv, data, data_inv;
/* a repeat code has no data */
@@ -44,8 +44,8 @@ static int img_ir_sanyo_scancode(int len, u64 raw, enum rc_type *protocol,
return -EINVAL;
/* Normal Sanyo */
- *protocol = RC_TYPE_SANYO;
- *scancode = addr << 8 | data;
+ request->protocol = RC_TYPE_SANYO;
+ request->scancode = addr << 8 | data;
return IMG_IR_SCANCODE;
}
diff --git a/drivers/media/rc/img-ir/img-ir-sharp.c b/drivers/media/rc/img-ir/img-ir-sharp.c
index 3300a38802a..fe5acc4f030 100644
--- a/drivers/media/rc/img-ir/img-ir-sharp.c
+++ b/drivers/media/rc/img-ir/img-ir-sharp.c
@@ -12,8 +12,8 @@
#include "img-ir-hw.h"
/* Convert Sharp data to a scancode */
-static int img_ir_sharp_scancode(int len, u64 raw, enum rc_type *protocol,
- u32 *scancode, u64 enabled_protocols)
+static int img_ir_sharp_scancode(int len, u64 raw, u64 enabled_protocols,
+ struct img_ir_scancode_req *request)
{
unsigned int addr, cmd, exp, chk;
@@ -32,8 +32,8 @@ static int img_ir_sharp_scancode(int len, u64 raw, enum rc_type *protocol,
/* probably the second half of the message */
return -EINVAL;
- *protocol = RC_TYPE_SHARP;
- *scancode = addr << 8 | cmd;
+ request->protocol = RC_TYPE_SHARP;
+ request->scancode = addr << 8 | cmd;
return IMG_IR_SCANCODE;
}
diff --git a/drivers/media/rc/img-ir/img-ir-sony.c b/drivers/media/rc/img-ir/img-ir-sony.c
index 3a0f17b0752..7f7375f82ed 100644
--- a/drivers/media/rc/img-ir/img-ir-sony.c
+++ b/drivers/media/rc/img-ir/img-ir-sony.c
@@ -12,8 +12,8 @@
#include "img-ir-hw.h"
/* Convert Sony data to a scancode */
-static int img_ir_sony_scancode(int len, u64 raw, enum rc_type *protocol,
- u32 *scancode, u64 enabled_protocols)
+static int img_ir_sony_scancode(int len, u64 raw, u64 enabled_protocols,
+ struct img_ir_scancode_req *request)
{
unsigned int dev, subdev, func;
@@ -25,7 +25,7 @@ static int img_ir_sony_scancode(int len, u64 raw, enum rc_type *protocol,
raw >>= 7;
dev = raw & 0x1f; /* next 5 bits */
subdev = 0;
- *protocol = RC_TYPE_SONY12;
+ request->protocol = RC_TYPE_SONY12;
break;
case 15:
if (!(enabled_protocols & RC_BIT_SONY15))
@@ -34,7 +34,7 @@ static int img_ir_sony_scancode(int len, u64 raw, enum rc_type *protocol,
raw >>= 7;
dev = raw & 0xff; /* next 8 bits */
subdev = 0;
- *protocol = RC_TYPE_SONY15;
+ request->protocol = RC_TYPE_SONY15;
break;
case 20:
if (!(enabled_protocols & RC_BIT_SONY20))
@@ -44,12 +44,12 @@ static int img_ir_sony_scancode(int len, u64 raw, enum rc_type *protocol,
dev = raw & 0x1f; /* next 5 bits */
raw >>= 5;
subdev = raw & 0xff; /* next 8 bits */
- *protocol = RC_TYPE_SONY20;
+ request->protocol = RC_TYPE_SONY20;
break;
default:
return -EINVAL;
}
- *scancode = dev << 16 | subdev << 8 | func;
+ request->scancode = dev << 16 | subdev << 8 | func;
return IMG_IR_SCANCODE;
}
diff --git a/drivers/media/rc/lirc_dev.c b/drivers/media/rc/lirc_dev.c
index 1e0545a6795..4de0e85af80 100644
--- a/drivers/media/rc/lirc_dev.c
+++ b/drivers/media/rc/lirc_dev.c
@@ -553,14 +553,14 @@ unsigned int lirc_dev_fop_poll(struct file *file, poll_table *wait)
if (!ir->attached)
return POLLERR;
- poll_wait(file, &ir->buf->wait_poll, wait);
+ if (ir->buf) {
+ poll_wait(file, &ir->buf->wait_poll, wait);
- if (ir->buf)
if (lirc_buffer_empty(ir->buf))
ret = 0;
else
ret = POLLIN | POLLRDNORM;
- else
+ } else
ret = POLLERR;
dev_dbg(ir->d.dev, LOGHEAD "poll result = %d\n",
diff --git a/drivers/media/rc/rc-main.c b/drivers/media/rc/rc-main.c
index 86ffcd54339..f8c5e47a30a 100644
--- a/drivers/media/rc/rc-main.c
+++ b/drivers/media/rc/rc-main.c
@@ -1021,16 +1021,16 @@ static ssize_t store_protocols(struct device *device,
goto out;
}
- if (new_protocols == old_protocols) {
- rc = len;
- goto out;
+ if (new_protocols != old_protocols) {
+ *current_protocols = new_protocols;
+ IR_dprintk(1, "Protocols changed to 0x%llx\n",
+ (long long)new_protocols);
}
- *current_protocols = new_protocols;
- IR_dprintk(1, "Protocols changed to 0x%llx\n", (long long)new_protocols);
-
/*
- * If the protocol is changed the filter needs updating.
+ * If a protocol change was attempted the filter may need updating, even
+ * if the actual protocol mask hasn't changed (since the driver may have
+ * cleared the filter).
* Try setting the same filter with the new protocol (if any).
* Fall back to clearing the filter.
*/
diff --git a/drivers/media/rc/sunxi-cir.c b/drivers/media/rc/sunxi-cir.c
index 340f7f51eed..7830aef3db4 100644
--- a/drivers/media/rc/sunxi-cir.c
+++ b/drivers/media/rc/sunxi-cir.c
@@ -23,6 +23,7 @@
#include <linux/interrupt.h>
#include <linux/module.h>
#include <linux/of_platform.h>
+#include <linux/reset.h>
#include <media/rc-core.h>
#define SUNXI_IR_DEV "sunxi-ir"
@@ -55,12 +56,12 @@
#define REG_RXINT_RAI_EN BIT(4)
/* Rx FIFO available byte level */
-#define REG_RXINT_RAL(val) (((val) << 8) & (GENMASK(11, 8)))
+#define REG_RXINT_RAL(val) ((val) << 8)
/* Rx Interrupt Status */
#define SUNXI_IR_RXSTA_REG 0x30
/* RX FIFO Get Available Counter */
-#define REG_RXSTA_GET_AC(val) (((val) >> 8) & (GENMASK(5, 0)))
+#define REG_RXSTA_GET_AC(val) (((val) >> 8) & (ir->fifo_size * 2 - 1))
/* Clear all interrupt status value */
#define REG_RXSTA_CLEARALL 0xff
@@ -71,10 +72,6 @@
/* CIR_REG register idle threshold */
#define REG_CIR_ITHR(val) (((val) << 8) & (GENMASK(15, 8)))
-/* Hardware supported fifo size */
-#define SUNXI_IR_FIFO_SIZE 16
-/* How many messages in FIFO trigger IRQ */
-#define TRIGGER_LEVEL 8
/* Required frequency for IR0 or IR1 clock in CIR mode */
#define SUNXI_IR_BASE_CLK 8000000
/* Frequency after IR internal divider */
@@ -93,8 +90,10 @@ struct sunxi_ir {
struct rc_dev *rc;
void __iomem *base;
int irq;
+ int fifo_size;
struct clk *clk;
struct clk *apb_clk;
+ struct reset_control *rst;
const char *map_name;
};
@@ -113,11 +112,11 @@ static irqreturn_t sunxi_ir_irq(int irqno, void *dev_id)
/* clean all pending statuses */
writel(status | REG_RXSTA_CLEARALL, ir->base + SUNXI_IR_RXSTA_REG);
- if (status & REG_RXINT_RAI_EN) {
+ 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 > SUNXI_IR_FIFO_SIZE ? SUNXI_IR_FIFO_SIZE : rc;
+ rc = rc > ir->fifo_size ? ir->fifo_size : rc;
/* If we have data */
for (cnt = 0; cnt < rc; cnt++) {
/* for each bit in fifo */
@@ -154,6 +153,11 @@ static int sunxi_ir_probe(struct platform_device *pdev)
if (!ir)
return -ENOMEM;
+ if (of_device_is_compatible(dn, "allwinner,sun5i-a13-ir"))
+ ir->fifo_size = 64;
+ else
+ ir->fifo_size = 16;
+
/* Clock */
ir->apb_clk = devm_clk_get(dev, "apb");
if (IS_ERR(ir->apb_clk)) {
@@ -166,15 +170,29 @@ static int sunxi_ir_probe(struct platform_device *pdev)
return PTR_ERR(ir->clk);
}
+ /* Reset (optional) */
+ ir->rst = devm_reset_control_get_optional(dev, NULL);
+ if (IS_ERR(ir->rst)) {
+ ret = PTR_ERR(ir->rst);
+ if (ret == -EPROBE_DEFER)
+ return ret;
+ ir->rst = NULL;
+ } else {
+ ret = reset_control_deassert(ir->rst);
+ if (ret)
+ return ret;
+ }
+
ret = clk_set_rate(ir->clk, SUNXI_IR_BASE_CLK);
if (ret) {
dev_err(dev, "set ir base clock failed!\n");
- return ret;
+ goto exit_reset_assert;
}
if (clk_prepare_enable(ir->apb_clk)) {
dev_err(dev, "try to enable apb_ir_clk failed\n");
- return -EINVAL;
+ ret = -EINVAL;
+ goto exit_reset_assert;
}
if (clk_prepare_enable(ir->clk)) {
@@ -255,7 +273,7 @@ static int sunxi_ir_probe(struct platform_device *pdev)
* level
*/
writel(REG_RXINT_ROI_EN | REG_RXINT_RPEI_EN |
- REG_RXINT_RAI_EN | REG_RXINT_RAL(TRIGGER_LEVEL - 1),
+ REG_RXINT_RAI_EN | REG_RXINT_RAL(ir->fifo_size / 2 - 1),
ir->base + SUNXI_IR_RXINT_REG);
/* Enable IR Module */
@@ -271,6 +289,9 @@ exit_clkdisable_clk:
clk_disable_unprepare(ir->clk);
exit_clkdisable_apb_clk:
clk_disable_unprepare(ir->apb_clk);
+exit_reset_assert:
+ if (ir->rst)
+ reset_control_assert(ir->rst);
return ret;
}
@@ -282,6 +303,8 @@ static int sunxi_ir_remove(struct platform_device *pdev)
clk_disable_unprepare(ir->clk);
clk_disable_unprepare(ir->apb_clk);
+ if (ir->rst)
+ reset_control_assert(ir->rst);
spin_lock_irqsave(&ir->ir_lock, flags);
/* disable IR IRQ */
@@ -298,6 +321,7 @@ static int sunxi_ir_remove(struct platform_device *pdev)
static const struct of_device_id sunxi_ir_match[] = {
{ .compatible = "allwinner,sun4i-a10-ir", },
+ { .compatible = "allwinner,sun5i-a13-ir", },
{},
};
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2024-11-23 00:17:53 +0000