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path: root/linux/drivers/media/video/ir-kbd-gpio.c
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Diffstat (limited to 'linux/drivers/media/video/ir-kbd-gpio.c')
-rw-r--r--linux/drivers/media/video/ir-kbd-gpio.c394
1 files changed, 394 insertions, 0 deletions
diff --git a/linux/drivers/media/video/ir-kbd-gpio.c b/linux/drivers/media/video/ir-kbd-gpio.c
new file mode 100644
index 000000000..550632d29
--- /dev/null
+++ b/linux/drivers/media/video/ir-kbd-gpio.c
@@ -0,0 +1,394 @@
+/*
+ * Copyright (c) 2003 Gerd Knorr
+ * Copyright (c) 2003 Pavel Machek
+ *
+ * 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.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ */
+
+#include <linux/module.h>
+#include <linux/moduleparam.h>
+#include <linux/init.h>
+#include <linux/input.h>
+#include <linux/delay.h>
+#include <linux/interrupt.h>
+#include <linux/input.h>
+#include <linux/pci.h>
+
+#include <media/ir-common.h>
+
+#include "bttv.h"
+
+/* ---------------------------------------------------------------------- */
+
+static IR_KEYTAB_TYPE ir_codes_avermedia[IR_KEYTAB_SIZE] = {
+ [ 17 ] = KEY_KP0,
+ [ 20 ] = KEY_KP1,
+ [ 12 ] = KEY_KP2,
+ [ 28 ] = KEY_KP3,
+ [ 18 ] = KEY_KP4,
+ [ 10 ] = KEY_KP5,
+ [ 26 ] = KEY_KP6,
+ [ 22 ] = KEY_KP7,
+ [ 14 ] = KEY_KP8,
+ [ 30 ] = KEY_KP9,
+
+ [ 24 ] = KEY_EJECTCD, // Unmarked on my controller
+ [ 0 ] = KEY_POWER,
+ [ 9 ] = BTN_LEFT, // DISPLAY/L
+ [ 25 ] = BTN_RIGHT, // LOOP/R
+ [ 5 ] = KEY_MUTE,
+ [ 19 ] = KEY_RECORD,
+ [ 11 ] = KEY_PAUSE,
+ [ 27 ] = KEY_STOP,
+ [ 15 ] = KEY_VOLUMEDOWN,
+ [ 31 ] = KEY_VOLUMEUP,
+
+ [ 16 ] = KEY_TUNER, // TV/FM
+ [ 8 ] = KEY_CD,
+ [ 4 ] = KEY_VIDEO,
+ [ 2 ] = KEY_AUDIO,
+ [ 6 ] = KEY_ZOOM, // full screen
+ [ 1 ] = KEY_INFO, // preview
+ [ 21 ] = KEY_SEARCH, // autoscan
+ [ 13 ] = KEY_STOP, // freeze
+ [ 29 ] = KEY_RECORD, // capture
+ [ 3 ] = KEY_PLAY, // unmarked
+ [ 24 ] = KEY_RED, // unmarked
+ [ 7 ] = KEY_GREEN, // unmarked
+
+#if 0
+ [ 16 ] = KEY_YELLOW, // unmarked
+ [ 8 ] = KEY_CHANNELDOWN,
+ [ 24 ] = KEY_CHANNELUP,
+ [ 0 ] = KEY_BLUE, // unmarked
+#endif
+};
+
+static IR_KEYTAB_TYPE winfast_codes[IR_KEYTAB_SIZE] = {
+ [ 5 ] = KEY_KP1,
+ [ 6 ] = KEY_KP2,
+ [ 7 ] = KEY_KP3,
+ [ 9 ] = KEY_KP4,
+ [ 10 ] = KEY_KP5,
+ [ 11 ] = KEY_KP6,
+ [ 13 ] = KEY_KP7,
+ [ 14 ] = KEY_KP8,
+ [ 15 ] = KEY_KP9,
+ [ 18 ] = KEY_KP0,
+
+ [ 0 ] = KEY_POWER,
+// [ 27 ] = MTS button
+ [ 2 ] = KEY_TUNER, // TV/FM
+ [ 30 ] = KEY_VIDEO,
+// [ 22 ] = display button
+ [ 4 ] = KEY_VOLUMEUP,
+ [ 8 ] = KEY_VOLUMEDOWN,
+ [ 12 ] = KEY_CHANNELUP,
+ [ 16 ] = KEY_CHANNELDOWN,
+ [ 3 ] = KEY_ZOOM, // fullscreen
+ [ 31 ] = KEY_SUBTITLE, // closed caption/teletext
+ [ 32 ] = KEY_SLEEP,
+// [ 41 ] = boss key
+ [ 20 ] = KEY_MUTE,
+ [ 43 ] = KEY_RED,
+ [ 44 ] = KEY_GREEN,
+ [ 45 ] = KEY_YELLOW,
+ [ 46 ] = KEY_BLUE,
+ [ 24 ] = KEY_KPPLUS, //fine tune +
+ [ 25 ] = KEY_KPMINUS, //fine tune -
+// [ 42 ] = picture in picture
+ [ 33 ] = KEY_KPDOT,
+ [ 19 ] = KEY_KPENTER,
+// [ 17 ] = recall
+ [ 34 ] = KEY_BACK,
+ [ 35 ] = KEY_PLAYPAUSE,
+ [ 36 ] = KEY_NEXT,
+// [ 37 ] = time shifting
+ [ 38 ] = KEY_STOP,
+ [ 39 ] = KEY_RECORD
+// [ 40 ] = snapshot
+};
+
+static IR_KEYTAB_TYPE ir_codes_pixelview[IR_KEYTAB_SIZE] = {
+ [ 2 ] = KEY_KP0,
+ [ 1 ] = KEY_KP1,
+ [ 11 ] = KEY_KP2,
+ [ 27 ] = KEY_KP3,
+ [ 5 ] = KEY_KP4,
+ [ 9 ] = KEY_KP5,
+ [ 21 ] = KEY_KP6,
+ [ 6 ] = KEY_KP7,
+ [ 10 ] = KEY_KP8,
+ [ 18 ] = KEY_KP9,
+
+ [ 3 ] = KEY_TUNER, // TV/FM
+ [ 7 ] = KEY_SEARCH, // scan
+ [ 28 ] = KEY_ZOOM, // full screen
+ [ 30 ] = KEY_POWER,
+ [ 23 ] = KEY_VOLUMEDOWN,
+ [ 31 ] = KEY_VOLUMEUP,
+ [ 20 ] = KEY_CHANNELDOWN,
+ [ 22 ] = KEY_CHANNELUP,
+ [ 24 ] = KEY_MUTE,
+
+ [ 0 ] = KEY_LIST, // source
+ [ 19 ] = KEY_INFO, // loop
+ [ 16 ] = KEY_LAST, // +100
+ [ 13 ] = KEY_CLEAR, // reset
+ [ 12 ] = BTN_RIGHT, // fun++
+ [ 4 ] = BTN_LEFT, // fun--
+ [ 14 ] = KEY_GOTO, // function
+ [ 15 ] = KEY_STOP, // freeze
+};
+
+/* ---------------------------------------------------------------------- */
+
+struct IR {
+ struct bttv_sub_device *sub;
+ struct input_dev input;
+ struct ir_input_state ir;
+ char name[32];
+ char phys[32];
+ u32 mask_keycode;
+ u32 mask_keydown;
+ u32 mask_keyup;
+
+ int polling;
+ u32 last_gpio;
+ struct work_struct work;
+ struct timer_list timer;
+};
+
+static int debug;
+module_param(debug, int, 0644); /* debug level (0,1,2) */
+
+#define DEVNAME "ir-kbd-gpio"
+#define dprintk(fmt, arg...) if (debug) \
+ printk(KERN_DEBUG DEVNAME ": " fmt , ## arg)
+
+static void ir_irq(struct bttv_sub_device *sub);
+static int ir_probe(struct device *dev);
+static int ir_remove(struct device *dev);
+
+static struct bttv_sub_driver driver = {
+ .drv = {
+ .name = DEVNAME,
+ .probe = ir_probe,
+ .remove = ir_remove,
+ },
+ .gpio_irq = ir_irq,
+};
+
+/* ---------------------------------------------------------------------- */
+
+static void ir_handle_key(struct IR *ir)
+{
+ u32 gpio,data;
+
+ /* read gpio value */
+ gpio = bttv_gpio_read(ir->sub->core);
+ if (ir->polling) {
+ if (ir->last_gpio == gpio)
+ return;
+ ir->last_gpio = gpio;
+ }
+
+ /* extract data */
+ data = ir_extract_bits(gpio, ir->mask_keycode);
+ dprintk(DEVNAME ": irq gpio=0x%x code=%d | %s%s%s\n",
+ gpio, data,
+ ir->polling ? "poll" : "irq",
+ (gpio & ir->mask_keydown) ? " down" : "",
+ (gpio & ir->mask_keyup) ? " up" : "");
+
+ if (ir->mask_keydown) {
+ /* bit set on keydown */
+ if (gpio & ir->mask_keydown) {
+ ir_input_keydown(&ir->input,&ir->ir,data,data);
+ } else {
+ ir_input_nokey(&ir->input,&ir->ir);
+ }
+
+ } else if (ir->mask_keyup) {
+ /* bit cleared on keydown */
+ if (0 == (gpio & ir->mask_keyup)) {
+ ir_input_keydown(&ir->input,&ir->ir,data,data);
+ } else {
+ ir_input_nokey(&ir->input,&ir->ir);
+ }
+
+ } else {
+ /* can't disturgissh keydown/up :-/ */
+ ir_input_keydown(&ir->input,&ir->ir,data,data);
+ ir_input_nokey(&ir->input,&ir->ir);
+ }
+}
+
+static void ir_irq(struct bttv_sub_device *sub)
+{
+ struct IR *ir = dev_get_drvdata(&sub->dev);
+
+ if (!ir->polling)
+ ir_handle_key(ir);
+}
+
+static void ir_timer(unsigned long data)
+{
+ struct IR *ir = (struct IR*)data;
+
+ schedule_work(&ir->work);
+}
+
+static void ir_work(void *data)
+{
+ struct IR *ir = data;
+ unsigned long timeout;
+
+ ir_handle_key(ir);
+ timeout = jiffies + (ir->polling * HZ / 1000);
+ mod_timer(&ir->timer, timeout);
+}
+
+/* ---------------------------------------------------------------------- */
+
+static int ir_probe(struct device *dev)
+{
+ struct bttv_sub_device *sub = to_bttv_sub_dev(dev);
+ struct IR *ir;
+ IR_KEYTAB_TYPE *ir_codes = NULL;
+ int ir_type = IR_TYPE_OTHER;
+
+ ir = kmalloc(sizeof(*ir),GFP_KERNEL);
+ if (NULL == ir)
+ return -ENOMEM;
+ memset(ir,0,sizeof(*ir));
+
+ /* detect & configure */
+ switch (sub->core->type) {
+ case BTTV_AVERMEDIA:
+ case BTTV_AVPHONE98:
+ ir_codes = ir_codes_avermedia;
+ ir->mask_keycode = 0xf80000;
+ ir->mask_keydown = 0x010000;
+ break;
+ case BTTV_WINFAST2000:
+ ir_codes = winfast_codes;
+ ir->mask_keycode = 0x8f8;
+ break;
+ case BTTV_PXELVWPLTVPAK:
+ ir_codes = ir_codes_pixelview;
+ ir->mask_keycode = 0x003e00;
+ ir->mask_keyup = 0x010000;
+ ir->polling = 50; // ms
+ break;
+ case BTTV_PV_BT878P_9B:
+ case BTTV_PV_BT878P_PLUS:
+ ir_codes = ir_codes_pixelview;
+ ir->mask_keycode = 0x001f00;
+ ir->mask_keyup = 0x008000;
+ ir->polling = 50; // ms
+ break;
+ case BTTV_MAGICTVIEW061:
+ case BTTV_MAGICTVIEW063:
+ ir_codes = ir_codes_empty;
+ ir->mask_keycode = 0x0008e000;
+ ir->mask_keydown = 0x00200000;
+ break;
+ }
+ if (NULL == ir_codes) {
+ kfree(ir);
+ return -ENODEV;
+ }
+
+ /* init hardware-specific stuff */
+ bttv_gpio_inout(sub->core, ir->mask_keycode | ir->mask_keydown, 0);
+ ir->sub = sub;
+
+ /* init input device */
+ snprintf(ir->name, sizeof(ir->name), "bttv IR (card=%d)",
+ sub->core->type);
+ snprintf(ir->phys, sizeof(ir->phys), "pci-%s/ir0",
+ pci_name(sub->core->pci));
+
+ ir_input_init(&ir->input, &ir->ir, ir_type, ir_codes);
+ ir->input.name = ir->name;
+#if LINUX_VERSION_CODE > KERNEL_VERSION(2,5,0)
+ ir->input.phys = ir->phys;
+ ir->input.id.bustype = BUS_PCI;
+ ir->input.id.version = 1;
+ if (sub->core->pci->subsystem_vendor) {
+ ir->input.id.vendor = sub->core->pci->subsystem_vendor;
+ ir->input.id.product = sub->core->pci->subsystem_device;
+ } else {
+ ir->input.id.vendor = sub->core->pci->vendor;
+ ir->input.id.product = sub->core->pci->device;
+ }
+#endif
+
+ if (ir->polling) {
+ INIT_WORK(&ir->work, ir_work, ir);
+ init_timer(&ir->timer);
+ ir->timer.function = ir_timer;
+ ir->timer.data = (unsigned long)ir;
+ schedule_work(&ir->work);
+ }
+
+ /* all done */
+ dev_set_drvdata(dev,ir);
+ input_register_device(&ir->input);
+ printk(DEVNAME ": %s detected at %s\n",ir->input.name,ir->input.phys);
+
+ return 0;
+}
+
+static int ir_remove(struct device *dev)
+{
+ struct IR *ir = dev_get_drvdata(dev);
+
+ if (ir->polling) {
+ del_timer(&ir->timer);
+ flush_scheduled_work();
+ }
+
+ input_unregister_device(&ir->input);
+ kfree(ir);
+ return 0;
+}
+
+/* ---------------------------------------------------------------------- */
+
+MODULE_AUTHOR("Gerd Knorr, Pavel Machek");
+MODULE_DESCRIPTION("input driver for bt8x8 gpio IR remote controls");
+MODULE_LICENSE("GPL");
+
+static int ir_init(void)
+{
+ return bttv_sub_register(&driver, "remote");
+}
+
+static void ir_fini(void)
+{
+ bttv_sub_unregister(&driver);
+}
+
+module_init(ir_init);
+module_exit(ir_fini);
+
+
+/*
+ * Local variables:
+ * c-basic-offset: 8
+ * End:
+ */
generated by cgit v1.2.3 (git 2.25.1) at 2025-04-26 21:47:18 +0000