--- /dev/null
+/*
+ tm6000-input.c - driver for TM5600/TM6000/TM6010 USB video capture devices
+
+ Copyright (C) 2010 Stefan Ringel <stefan.ringel@arcor.de>
+
+ 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 version 2
+
+ 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., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/delay.h>
+
+#include <linux/input.h>
+#include <linux/usb.h>
+
+#include <media/ir-core.h>
+#include <media/ir-common.h>
+
+#include "tm6000.h"
+#include "tm6000-regs.h"
+
+static unsigned int ir_debug;
+module_param(ir_debug, int, 0644);
+MODULE_PARM_DESC(ir_debug, "enable debug message [IR]");
+
+static unsigned int enable_ir = 1;
+module_param(enable_ir, int, 0644);
+MODULE_PARM_DESC(enable_ir, "enable ir (default is enable");
+
+#undef dprintk
+
+#define dprintk(fmt, arg... ) \
+ if (ir_debug) { \
+ printk(KERN_DEBUG "%s/ir: " fmt, ir->name , ## arg); \
+ }
+
+struct tm6000_ir_poll_result {
+ u8 rc_data[4];
+};
+
+struct tm6000_IR {
+ struct tm6000_core *dev;
+ struct ir_input_dev *input;
+ struct ir_input_state ir;
+ char name[32];
+ char phys[32];
+
+ /* poll expernal decoder */
+ int polling;
+ struct delayed_work work;
+ u8 wait:1;
+ struct urb *int_urb;
+ u8 *urb_data;
+ u8 key:1;
+
+ int (*get_key) (struct tm6000_IR *, struct tm6000_ir_poll_result *);
+
+ /* IR device properties */
+ struct ir_dev_props props;
+};
+
+
+void tm6000_ir_wait(struct tm6000_core *dev, u8 state)
+{
+ struct tm6000_IR *ir = dev->ir;
+
+ if (!dev->ir)
+ return;
+
+ if (state)
+ ir->wait = 1;
+ else
+ ir->wait = 0;
+}
+
+
+static int tm6000_ir_config(struct tm6000_IR *ir)
+{
+ struct tm6000_core *dev = ir->dev;
+ u8 buf[10];
+ int rc;
+
+ /* hack */
+ buf[0] = 0xff;
+ buf[1] = 0xff;
+ buf[2] = 0xf2;
+ buf[3] = 0x2b;
+ buf[4] = 0x20;
+ buf[5] = 0x35;
+ buf[6] = 0x60;
+ buf[7] = 0x04;
+ buf[8] = 0xc0;
+ buf[9] = 0x08;
+
+ rc = tm6000_read_write_usb(dev, USB_DIR_OUT | USB_TYPE_VENDOR |
+ USB_RECIP_DEVICE, REQ_00_SET_IR_VALUE, 0, 0, buf, 0x0a);
+ msleep(100);
+
+ if (rc < 0) {
+ printk(KERN_INFO "IR configuration failed");
+ return rc;
+ }
+ return 0;
+}
+
+static void tm6000_ir_urb_received(struct urb *urb)
+{
+ struct tm6000_core *dev = urb->context;
+ struct tm6000_IR *ir = dev->ir;
+ int rc;
+
+ if (urb->status != 0)
+ printk(KERN_INFO "not ready\n");
+ else if (urb->actual_length > 0)
+ memcpy (ir->urb_data, urb->transfer_buffer, urb->actual_length);
+
+ dprintk ("data %02x %02x %02x %02x\n", ir->urb_data[0],
+ ir->urb_data[1], ir->urb_data[2], ir->urb_data[3]);
+
+ ir->key = 1;
+
+ rc = usb_submit_urb(urb, GFP_ATOMIC);
+}
+
+static int default_polling_getkey(struct tm6000_IR *ir,
+ struct tm6000_ir_poll_result *poll_result)
+{
+ struct tm6000_core *dev = ir->dev;
+ int rc;
+ u8 buf[2];
+
+ if(ir->wait && !&dev->int_in) {
+ poll_result->rc_data[0] = 0xff;
+ return 0;
+ }
+
+ if (&dev->int_in) {
+ poll_result->rc_data[0] = ir->urb_data[0];
+ poll_result->rc_data[1] = ir->urb_data[1];
+ } else {
+ tm6000_set_reg(dev, REQ_04_EN_DISABLE_MCU_INT, 2, 0);
+ msleep(10);
+ tm6000_set_reg(dev, REQ_04_EN_DISABLE_MCU_INT, 2, 1);
+ msleep(10);
+
+ rc = tm6000_read_write_usb(dev, USB_DIR_IN | USB_TYPE_VENDOR |
+ USB_RECIP_DEVICE, REQ_02_GET_IR_CODE, 0, 0, buf, 1);
+
+ msleep(10);
+
+ dprintk ("read data=%02x\n", buf[0]);
+ if (rc < 0) {
+ return rc;
+ }
+ poll_result->rc_data[0] = buf[0];
+ }
+ return 0;
+}
+
+static void tm6000_ir_handle_key(struct tm6000_IR *ir)
+{
+ int result;
+ struct tm6000_ir_poll_result poll_result;
+
+ /* read the registers containing the IR status */
+ result = ir->get_key(ir, &poll_result);
+ if (result < 0) {
+ printk(KERN_INFO "ir->get_key() failed %d\n", result);
+ return;
+ }
+
+ dprintk("ir->get_key result data=%02x %02x\n",
+ poll_result.rc_data[0], poll_result.rc_data[1]);
+
+ if (poll_result.rc_data[0] != 0xff && ir->key == 1) {
+ ir_input_keydown(ir->input->input_dev, &ir->ir,
+ poll_result.rc_data[0] | poll_result.rc_data[1] << 8);
+
+ ir_input_nokey(ir->input->input_dev, &ir->ir);
+ ir->key = 0;
+ }
+ return;
+}
+
+static void tm6000_ir_work(struct work_struct *work)
+{
+ struct tm6000_IR *ir = container_of(work, struct tm6000_IR, work.work);
+
+ tm6000_ir_handle_key(ir);
+ schedule_delayed_work(&ir->work, msecs_to_jiffies(ir->polling));
+}
+
+static int tm6000_ir_start(void *priv)
+{
+ struct tm6000_IR *ir = priv;
+
+ INIT_DELAYED_WORK(&ir->work, tm6000_ir_work);
+ schedule_delayed_work(&ir->work, 0);
+
+ return 0;
+}
+
+static void tm6000_ir_stop(void *priv)
+{
+ struct tm6000_IR *ir = priv;
+
+ cancel_delayed_work_sync(&ir->work);
+}
+
+int tm6000_ir_change_protocol(void *priv, u64 ir_type)
+{
+ struct tm6000_IR *ir = priv;
+
+ ir->get_key = default_polling_getkey;
+
+ tm6000_ir_config(ir);
+ /* TODO */
+ return 0;
+}
+
+int tm6000_ir_init(struct tm6000_core *dev)
+{
+ struct tm6000_IR *ir;
+ struct ir_input_dev *ir_input_dev;
+ int err = -ENOMEM;
+ int pipe, size, rc;
+
+ if (!enable_ir)
+ return -ENODEV;
+
+ if (!dev->caps.has_remote)
+ return 0;
+
+ if (!dev->ir_codes)
+ return 0;
+
+ ir = kzalloc(sizeof(*ir), GFP_KERNEL);
+ ir_input_dev = kzalloc(sizeof(*ir_input_dev), GFP_KERNEL);
+ ir_input_dev->input_dev = input_allocate_device();
+ if (!ir || !ir_input_dev || !ir_input_dev->input_dev)
+ goto err_out_free;
+
+ /* record handles to ourself */
+ ir->dev = dev;
+ dev->ir = ir;
+
+ ir->input = ir_input_dev;
+
+ /* input einrichten */
+ ir->props.allowed_protos = IR_TYPE_RC5 | IR_TYPE_NEC;
+ ir->props.priv = ir;
+ ir->props.change_protocol = tm6000_ir_change_protocol;
+ ir->props.open = tm6000_ir_start;
+ ir->props.close = tm6000_ir_stop;
+ ir->props.driver_type = RC_DRIVER_SCANCODE;
+
+ ir->polling = 50;
+
+ snprintf(ir->name, sizeof(ir->name), "tm5600/60x0 IR (%s)",
+ dev->name);
+
+ usb_make_path(dev->udev, ir->phys, sizeof(ir->phys));
+ strlcat(ir->phys, "/input0", sizeof(ir->phys));
+
+ tm6000_ir_change_protocol(ir, IR_TYPE_UNKNOWN);
+ err = ir_input_init(ir_input_dev->input_dev, &ir->ir, IR_TYPE_OTHER);
+ if (err < 0)
+ goto err_out_free;
+
+ ir_input_dev->input_dev->name = ir->name;
+ ir_input_dev->input_dev->phys = ir->phys;
+ ir_input_dev->input_dev->id.bustype = BUS_USB;
+ ir_input_dev->input_dev->id.version = 1;
+ ir_input_dev->input_dev->id.vendor = le16_to_cpu(dev->udev->descriptor.idVendor);
+ ir_input_dev->input_dev->id.product = le16_to_cpu(dev->udev->descriptor.idProduct);
+
+ ir_input_dev->input_dev->dev.parent = &dev->udev->dev;
+
+ if (&dev->int_in) {
+ dprintk("IR over int\n");
+
+ ir->int_urb = usb_alloc_urb(0, GFP_KERNEL);
+
+ pipe = usb_rcvintpipe(dev->udev,
+ dev->int_in.endp->desc.bEndpointAddress
+ & USB_ENDPOINT_NUMBER_MASK);
+
+ size = usb_maxpacket(dev->udev, pipe, usb_pipeout(pipe));
+ dprintk("IR max size: %d\n", size);
+
+ ir->int_urb->transfer_buffer = kzalloc(size, GFP_KERNEL);
+ if (ir->int_urb->transfer_buffer == NULL) {
+ usb_free_urb(ir->int_urb);
+ goto err_out_stop;
+ }
+ dprintk("int interval: %d\n", dev->int_in.endp->desc.bInterval);
+ usb_fill_int_urb(ir->int_urb, dev->udev, pipe,
+ ir->int_urb->transfer_buffer, size,
+ tm6000_ir_urb_received, dev,
+ dev->int_in.endp->desc.bInterval);
+ rc = usb_submit_urb(ir->int_urb, GFP_KERNEL);
+ if (rc) {
+ kfree(ir->int_urb->transfer_buffer);
+ usb_free_urb(ir->int_urb);
+ err = rc;
+ goto err_out_stop;
+ }
+ ir->urb_data = kzalloc(size, GFP_KERNEL);
+ }
+
+ /* ir register */
+ err = ir_input_register(ir->input->input_dev, dev->ir_codes,
+ &ir->props, "tm6000");
+ if (err)
+ goto err_out_stop;
+
+ return 0;
+
+err_out_stop:
+ dev->ir = NULL;
+err_out_free:
+ kfree(ir_input_dev);
+ kfree(ir);
+ return err;
+}
+
+int tm6000_ir_fini(struct tm6000_core *dev)
+{
+ struct tm6000_IR *ir = dev->ir;
+
+ /* skip detach on non attached board */
+
+ if (!ir)
+ return 0;
+
+ ir_input_unregister(ir->input->input_dev);
+
+ if (ir->int_urb) {
+ usb_kill_urb(ir->int_urb);
+ kfree(ir->int_urb->transfer_buffer);
+ usb_free_urb(ir->int_urb);
+ ir->int_urb = NULL;
+ kfree(ir->urb_data);
+ ir->urb_data = NULL;
+ }
+
+ kfree(ir->input);
+ ir->input = NULL;
+ kfree(ir);
+ dev->ir = NULL;
+
+ return 0;
+}
git.openpandora.org / pandora-kernel.git / commitdiff