From 9dfe4e8339499bfe8e9a362fefc290b4cb9c3803 Mon Sep 17 00:00:00 2001 From: Mauro Carvalho Chehab Date: Sun, 4 Apr 2010 14:06:55 -0300 Subject: [PATCH] V4L/DVB: ir-core: Add support for badly-implemented hardware decoders A few hardware Remote Controller decoders, even using a standard protocol, aren't able to provide the entire scancode. Due to that, the capability of using other IR's are limited on those hardware. Adds a way to indicate to ir-core what are the bits that the hardware provides, from a scancode, allowing the addition of a complete IR table to the kernel and allowing a limited support for changing the Remote Controller on those devices. Signed-off-by: Mauro Carvalho Chehab --- drivers/media/IR/ir-keytable.c | 25 ++++-- drivers/media/IR/keymaps/Makefile | 1 + drivers/media/IR/keymaps/rc-pixelview-mk12.c | 83 ++++++++++++++++++++ drivers/media/video/cx88/cx88-input.c | 30 ++++++- include/media/ir-core.h | 24 +++++- include/media/rc-map.h | 3 +- 6 files changed, 153 insertions(+), 13 deletions(-) create mode 100644 drivers/media/IR/keymaps/rc-pixelview-mk12.c diff --git a/drivers/media/IR/ir-keytable.c b/drivers/media/IR/ir-keytable.c index a89456932f7c..af7400bc906f 100644 --- a/drivers/media/IR/ir-keytable.c +++ b/drivers/media/IR/ir-keytable.c @@ -89,6 +89,18 @@ static int ir_do_setkeycode(struct input_dev *dev, { unsigned int i; int old_keycode = KEY_RESERVED; + struct ir_input_dev *ir_dev = input_get_drvdata(dev); + + /* + * Unfortunately, some hardware-based IR decoders don't provide + * all bits for the complete IR code. In general, they provide only + * the command part of the IR code. Yet, as it is possible to replace + * the provided IR with another one, it is needed to allow loading + * IR tables from other remotes. So, + */ + if (ir_dev->props && ir_dev->props->scanmask) { + scancode &= ir_dev->props->scanmask; + } /* First check if we already have a mapping for this ir command */ for (i = 0; i < rc_tab->len; i++) { @@ -448,6 +460,13 @@ int __ir_input_register(struct input_dev *input_dev, sizeof(struct ir_scancode)); ir_dev->rc_tab.scan = kmalloc(ir_dev->rc_tab.alloc, GFP_KERNEL); ir_dev->rc_tab.size = ir_dev->rc_tab.alloc / sizeof(struct ir_scancode); + if (props) { + ir_dev->props = props; + if (props->open) + input_dev->open = ir_open; + if (props->close) + input_dev->close = ir_close; + } if (!ir_dev->rc_tab.scan) { rc = -ENOMEM; @@ -465,12 +484,6 @@ int __ir_input_register(struct input_dev *input_dev, goto out_table; } - ir_dev->props = props; - if (props && props->open) - input_dev->open = ir_open; - if (props && props->close) - input_dev->close = ir_close; - rc = ir_register_class(input_dev); if (rc < 0) goto out_table; diff --git a/drivers/media/IR/keymaps/Makefile b/drivers/media/IR/keymaps/Makefile index 937b7db9c9d2..c4d891d79491 100644 --- a/drivers/media/IR/keymaps/Makefile +++ b/drivers/media/IR/keymaps/Makefile @@ -46,6 +46,7 @@ obj-$(CONFIG_RC_MAP) += rc-adstech-dvb-t-pci.o \ rc-pinnacle-grey.o \ rc-pinnacle-pctv-hd.o \ rc-pixelview.o \ + rc-pixelview-mk12.o \ rc-pixelview-new.o \ rc-powercolor-real-angel.o \ rc-proteus-2309.o \ diff --git a/drivers/media/IR/keymaps/rc-pixelview-mk12.c b/drivers/media/IR/keymaps/rc-pixelview-mk12.c new file mode 100644 index 000000000000..5a735d569a8b --- /dev/null +++ b/drivers/media/IR/keymaps/rc-pixelview-mk12.c @@ -0,0 +1,83 @@ +/* rc-pixelview-mk12.h - Keytable for pixelview Remote Controller + * + * keymap imported from ir-keymaps.c + * + * Copyright (c) 2010 by Mauro Carvalho Chehab + * + * 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 + +/* + * Keytable for MK-F12 IR remote provided together with Pixelview + * Ultra Pro Remote Controller. Uses NEC extended format. + */ +static struct ir_scancode pixelview_mk12[] = { + { 0x866b03, KEY_TUNER }, /* Timeshift */ + { 0x866b1e, KEY_POWER2 }, /* power */ + + { 0x866b01, KEY_1 }, + { 0x866b0b, KEY_2 }, + { 0x866b1b, KEY_3 }, + { 0x866b05, KEY_4 }, + { 0x866b09, KEY_5 }, + { 0x866b15, KEY_6 }, + { 0x866b06, KEY_7 }, + { 0x866b0a, KEY_8 }, + { 0x866b12, KEY_9 }, + { 0x866b02, KEY_0 }, + + { 0x866b13, KEY_AGAIN }, /* loop */ + { 0x866b10, KEY_DIGITS }, /* +100 */ + + { 0x866b00, KEY_MEDIA }, /* source */ + { 0x866b18, KEY_MUTE }, /* mute */ + { 0x866b19, KEY_CAMERA }, /* snapshot */ + { 0x866b1a, KEY_SEARCH }, /* scan */ + + { 0x866b16, KEY_CHANNELUP }, /* chn + */ + { 0x866b14, KEY_CHANNELDOWN }, /* chn - */ + { 0x866b1f, KEY_VOLUMEUP }, /* vol + */ + { 0x866b17, KEY_VOLUMEDOWN }, /* vol - */ + { 0x866b1c, KEY_ZOOM }, /* zoom */ + + { 0x866b04, KEY_REWIND }, + { 0x866b0e, KEY_RECORD }, + { 0x866b0c, KEY_FORWARD }, + + { 0x866b1d, KEY_STOP }, + { 0x866b08, KEY_PLAY }, + { 0x866b0f, KEY_PAUSE }, + + { 0x866b0d, KEY_TV }, + { 0x866b07, KEY_RADIO }, /* FM */ +}; + +static struct rc_keymap pixelview_map = { + .map = { + .scan = pixelview_mk12, + .size = ARRAY_SIZE(pixelview_mk12), + .ir_type = IR_TYPE_NEC, + .name = RC_MAP_PIXELVIEW_MK12, + } +}; + +static int __init init_rc_map_pixelview(void) +{ + return ir_register_map(&pixelview_map); +} + +static void __exit exit_rc_map_pixelview(void) +{ + ir_unregister_map(&pixelview_map); +} + +module_init(init_rc_map_pixelview) +module_exit(exit_rc_map_pixelview) + +MODULE_LICENSE("GPL"); +MODULE_AUTHOR("Mauro Carvalho Chehab "); diff --git a/drivers/media/video/cx88/cx88-input.c b/drivers/media/video/cx88/cx88-input.c index 7ddc8bb463f8..76733349c6cc 100644 --- a/drivers/media/video/cx88/cx88-input.c +++ b/drivers/media/video/cx88/cx88-input.c @@ -248,6 +248,9 @@ int cx88_ir_init(struct cx88_core *core, struct pci_dev *pci) char *ir_codes = NULL; u64 ir_type = IR_TYPE_OTHER; int err = -ENOMEM; + u32 hardware_mask = 0; /* For devices with a hardware mask, when + * used with a full-code IR table + */ ir = kzalloc(sizeof(*ir), GFP_KERNEL); input_dev = input_allocate_device(); @@ -314,11 +317,18 @@ int cx88_ir_init(struct cx88_core *core, struct pci_dev *pci) break; case CX88_BOARD_PROLINK_PLAYTVPVR: case CX88_BOARD_PIXELVIEW_PLAYTV_ULTRA_PRO: - ir_codes = RC_MAP_PIXELVIEW; + /* + * It seems that this hardware is paired with NEC extended + * address 0x866b. So, unfortunately, its usage with other + * IR's with different address won't work. Still, there are + * other IR's from the same manufacturer that works, like the + * 002-T mini RC, provided with newer PV hardware + */ + ir_codes = RC_MAP_PIXELVIEW_MK12; ir->gpio_addr = MO_GP1_IO; - ir->mask_keycode = 0x1f; /* Only command is retrieved */ ir->mask_keyup = 0x80; ir->polling = 10; /* ms */ + hardware_mask = 0x3f; /* Hardware returns only 6 bits from command part */ break; case CX88_BOARD_PROLINK_PV_8000GT: case CX88_BOARD_PROLINK_PV_GLOBAL_XTREME: @@ -410,6 +420,21 @@ int cx88_ir_init(struct cx88_core *core, struct pci_dev *pci) goto err_out_free; } + /* + * The usage of mask_keycode were very convenient, due to several + * reasons. Among others, the scancode tables were using the scancode + * as the index elements. So, the less bits it was used, the smaller + * the table were stored. After the input changes, the better is to use + * the full scancodes, since it allows replacing the IR remote by + * another one. Unfortunately, there are still some hardware, like + * Pixelview Ultra Pro, where only part of the scancode is sent via + * GPIO. So, there's no way to get the full scancode. Due to that, + * hardware_mask were introduced here: it represents those hardware + * that has such limits. + */ + if (hardware_mask && !ir->mask_keycode) + ir->mask_keycode = hardware_mask; + /* init input device */ snprintf(ir->name, sizeof(ir->name), "cx88 IR (%s)", core->board.name); snprintf(ir->phys, sizeof(ir->phys), "pci-%s/ir0", pci_name(pci)); @@ -437,6 +462,7 @@ int cx88_ir_init(struct cx88_core *core, struct pci_dev *pci) ir->props.priv = core; ir->props.open = cx88_ir_open; ir->props.close = cx88_ir_close; + ir->props.scanmask = hardware_mask; /* all done */ err = ir_input_register(ir->input, ir_codes, &ir->props, MODULE_NAME); diff --git a/include/media/ir-core.h b/include/media/ir-core.h index 0f64b48ecd90..4397ea3d9754 100644 --- a/include/media/ir-core.h +++ b/include/media/ir-core.h @@ -33,12 +33,28 @@ enum raw_event_type { IR_STOP_EVENT = (1 << 3), }; +/** + * struct ir_dev_props - Allow caller drivers to set special properties + * @allowed_protos: bitmask with the supported IR_TYPE_* protocols + * @scanmask: some hardware decoders are not capable of providing the full + * scancode to the application. As this is a hardware limit, we can't do + * anything with it. Yet, as the same keycode table can be used with other + * devices, a mask is provided to allow its usage. Drivers should generally + * leave this field in blank + * @priv: driver-specific data, to be used on the callbacks + * @change_protocol: allow changing the protocol used on hardware decoders + * @open: callback to allow drivers to enable polling/irq when IR input device + * is opened. + * @close: callback to allow drivers to disable polling/irq when IR input device + * is opened. + */ struct ir_dev_props { - unsigned long allowed_protos; + unsigned long allowed_protos; + u32 scanmask; void *priv; - int (*change_protocol)(void *priv, u64 ir_type); - int (*open)(void *priv); - void (*close)(void *priv); + int (*change_protocol)(void *priv, u64 ir_type); + int (*open)(void *priv); + void (*close)(void *priv); }; struct ir_raw_event { diff --git a/include/media/rc-map.h b/include/media/rc-map.h index b10990d1749d..3b7fe5a0dc72 100644 --- a/include/media/rc-map.h +++ b/include/media/rc-map.h @@ -18,7 +18,7 @@ #define IR_TYPE_OTHER (1u << 31) struct ir_scancode { - u16 scancode; + u32 scancode; u32 keycode; }; @@ -95,6 +95,7 @@ void rc_map_init(void); #define RC_MAP_PINNACLE_PCTV_HD "rc-pinnacle-pctv-hd" #define RC_MAP_PIXELVIEW_NEW "rc-pixelview-new" #define RC_MAP_PIXELVIEW "rc-pixelview" +#define RC_MAP_PIXELVIEW_MK12 "rc-pixelview-mk12" #define RC_MAP_POWERCOLOR_REAL_ANGEL "rc-powercolor-real-angel" #define RC_MAP_PROTEUS_2309 "rc-proteus-2309" #define RC_MAP_PURPLETV "rc-purpletv" -- 2.20.1