From 6d78933c291bd0b6292e2c631e2f5e346c14d3fa Mon Sep 17 00:00:00 2001 From: Johannes Stezenbach Date: Fri, 9 Sep 2005 13:03:05 -0700 Subject: [PATCH] [PATCH] dvb: cinergyT2: remote control fixes IR RC fixes: - EVIOCSKEYCODE is not supported by this driver, fix potential crash when it is used by not setting rc_input_dev->keycodesize - fix key repeat handling (hopefully) - reduce default poll internal to 50msec (necessary for key repeat handling) Signed-off-by: Johannes Stezenbach Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- drivers/media/dvb/cinergyT2/Kconfig | 2 +- drivers/media/dvb/cinergyT2/cinergyT2.c | 93 +++++++++++++++---------- 2 files changed, 57 insertions(+), 38 deletions(-) diff --git a/drivers/media/dvb/cinergyT2/Kconfig b/drivers/media/dvb/cinergyT2/Kconfig index 226714085f..7cf4c4a888 100644 --- a/drivers/media/dvb/cinergyT2/Kconfig +++ b/drivers/media/dvb/cinergyT2/Kconfig @@ -77,7 +77,7 @@ config DVB_CINERGYT2_ENABLE_RC_INPUT_DEVICE config DVB_CINERGYT2_RC_QUERY_INTERVAL int "Infrared Remote Controller update interval [milliseconds]" depends on DVB_CINERGYT2_TUNING && DVB_CINERGYT2_ENABLE_RC_INPUT_DEVICE - default "100" + default "50" help If you have a very fast-repeating remote control you can try lower values, for normal consumer receivers the default value should be diff --git a/drivers/media/dvb/cinergyT2/cinergyT2.c b/drivers/media/dvb/cinergyT2/cinergyT2.c index c52e9d5c3d..6db0929ef5 100644 --- a/drivers/media/dvb/cinergyT2/cinergyT2.c +++ b/drivers/media/dvb/cinergyT2/cinergyT2.c @@ -35,7 +35,6 @@ #include "dvb_demux.h" #include "dvb_net.h" - #ifdef CONFIG_DVB_CINERGYT2_TUNING #define STREAM_URB_COUNT (CONFIG_DVB_CINERGYT2_STREAM_URB_COUNT) #define STREAM_BUF_SIZE (CONFIG_DVB_CINERGYT2_STREAM_BUF_SIZE) @@ -48,7 +47,7 @@ #define STREAM_URB_COUNT (32) #define STREAM_BUF_SIZE (512) /* bytes */ #define ENABLE_RC (1) - #define RC_QUERY_INTERVAL (100) /* milliseconds */ + #define RC_QUERY_INTERVAL (50) /* milliseconds */ #define QUERY_INTERVAL (333) /* milliseconds */ #endif @@ -141,6 +140,8 @@ struct cinergyt2 { struct input_dev rc_input_dev; struct work_struct rc_query_work; int rc_input_event; + u32 rc_last_code; + unsigned long last_event_jiffies; #endif }; @@ -155,7 +156,7 @@ struct cinergyt2_rc_event { uint32_t value; } __attribute__((packed)); -static const uint32_t rc_keys [] = { +static const uint32_t rc_keys[] = { CINERGYT2_RC_EVENT_TYPE_NEC, 0xfe01eb04, KEY_POWER, CINERGYT2_RC_EVENT_TYPE_NEC, 0xfd02eb04, KEY_1, CINERGYT2_RC_EVENT_TYPE_NEC, 0xfc03eb04, KEY_2, @@ -684,52 +685,68 @@ static struct dvb_device cinergyt2_fe_template = { #ifdef ENABLE_RC static void cinergyt2_query_rc (void *data) { - struct cinergyt2 *cinergyt2 = (struct cinergyt2 *) data; - char buf [1] = { CINERGYT2_EP1_GET_RC_EVENTS }; + struct cinergyt2 *cinergyt2 = data; + char buf[1] = { CINERGYT2_EP1_GET_RC_EVENTS }; struct cinergyt2_rc_event rc_events[12]; - int n, len; + int n, len, i; if (down_interruptible(&cinergyt2->sem)) return; len = cinergyt2_command(cinergyt2, buf, sizeof(buf), - (char *) rc_events, sizeof(rc_events)); - - for (n=0; len>0 && n<(len/sizeof(rc_events[0])); n++) { - int i; + (char *) rc_events, sizeof(rc_events)); + if (len < 0) + goto out; + if (len == 0) { + if (time_after(jiffies, cinergyt2->last_event_jiffies + + msecs_to_jiffies(150))) { + /* stop key repeat */ + if (cinergyt2->rc_input_event != KEY_MAX) { + dprintk(1, "rc_input_event=%d Up\n", cinergyt2->rc_input_event); + input_report_key(&cinergyt2->rc_input_dev, + cinergyt2->rc_input_event, 0); + cinergyt2->rc_input_event = KEY_MAX; + } + cinergyt2->rc_last_code = ~0; + } + goto out; + } + cinergyt2->last_event_jiffies = jiffies; -/* dprintk(1,"rc_events[%d].value = %x, type=%x\n",n,le32_to_cpu(rc_events[n].value),rc_events[n].type);*/ + for (n = 0; n < (len / sizeof(rc_events[0])); n++) { + dprintk(1, "rc_events[%d].value = %x, type=%x\n", + n, le32_to_cpu(rc_events[n].value), rc_events[n].type); if (rc_events[n].type == CINERGYT2_RC_EVENT_TYPE_NEC && - rc_events[n].value == ~0) - { - /** - * keyrepeat bit. If we would handle this properly - * we would need to emit down events as long the - * keyrepeat goes, a up event if no further - * repeat bits occur. Would need a timer to implement - * and no other driver does this, so we simply - * emit the last key up/down sequence again. - */ + rc_events[n].value == ~0) { + /* keyrepeat bit -> just repeat last rc_input_event */ } else { cinergyt2->rc_input_event = KEY_MAX; - for (i=0; irc_input_event = rc_keys[i+2]; + for (i = 0; i < sizeof(rc_keys) / sizeof(rc_keys[0]); i += 3) { + if (rc_keys[i + 0] == rc_events[n].type && + rc_keys[i + 1] == le32_to_cpu(rc_events[n].value)) { + cinergyt2->rc_input_event = rc_keys[i + 2]; break; } } } if (cinergyt2->rc_input_event != KEY_MAX) { - input_report_key(&cinergyt2->rc_input_dev, cinergyt2->rc_input_event, 1); - input_report_key(&cinergyt2->rc_input_dev, cinergyt2->rc_input_event, 0); - input_sync(&cinergyt2->rc_input_dev); + if (rc_events[n].value == cinergyt2->rc_last_code && + cinergyt2->rc_last_code != ~0) { + /* emit a key-up so the double event is recognized */ + dprintk(1, "rc_input_event=%d UP\n", cinergyt2->rc_input_event); + input_report_key(&cinergyt2->rc_input_dev, + cinergyt2->rc_input_event, 0); + } + dprintk(1, "rc_input_event=%d\n", cinergyt2->rc_input_event); + input_report_key(&cinergyt2->rc_input_dev, + cinergyt2->rc_input_event, 1); + cinergyt2->rc_last_code = rc_events[n].value; } } +out: schedule_delayed_work(&cinergyt2->rc_query_work, msecs_to_jiffies(RC_QUERY_INTERVAL)); @@ -771,7 +788,10 @@ static int cinergyt2_probe (struct usb_interface *intf, const struct usb_device_id *id) { struct cinergyt2 *cinergyt2; - int i, err; + int err; +#ifdef ENABLE_RC + int i; +#endif if (!(cinergyt2 = kmalloc (sizeof(struct cinergyt2), GFP_KERNEL))) { dprintk(1, "out of memory?!?\n"); @@ -827,19 +847,18 @@ static int cinergyt2_probe (struct usb_interface *intf, DVB_DEVICE_FRONTEND); #ifdef ENABLE_RC - init_input_dev(&cinergyt2->rc_input_dev); - - cinergyt2->rc_input_dev.evbit[0] = BIT(EV_KEY); - cinergyt2->rc_input_dev.keycodesize = sizeof(unsigned char); - cinergyt2->rc_input_dev.keycodemax = KEY_MAX; + cinergyt2->rc_input_dev.evbit[0] = BIT(EV_KEY) | BIT(EV_REP); + cinergyt2->rc_input_dev.keycodesize = 0; + cinergyt2->rc_input_dev.keycodemax = 0; cinergyt2->rc_input_dev.name = DRIVER_NAME " remote control"; - for (i=0; irc_input_dev.keybit); + for (i = 0; i < sizeof(rc_keys) / sizeof(rc_keys[0]); i += 3) + set_bit(rc_keys[i + 2], cinergyt2->rc_input_dev.keybit); input_register_device(&cinergyt2->rc_input_dev); cinergyt2->rc_input_event = KEY_MAX; + cinergyt2->rc_last_code = ~0; INIT_WORK(&cinergyt2->rc_query_work, cinergyt2_query_rc, cinergyt2); schedule_delayed_work(&cinergyt2->rc_query_work, HZ/2); -- 2.39.5