From patchwork Mon Aug 13 12:59:50 2012 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Sean Young X-Patchwork-Id: 1312641 Return-Path: X-Original-To: patchwork-linux-media@patchwork.kernel.org Delivered-To: patchwork-process-083081@patchwork1.kernel.org Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by patchwork1.kernel.org (Postfix) with ESMTP id 1AA613FC81 for ; Mon, 13 Aug 2012 13:00:11 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751661Ab2HMNAE (ORCPT ); Mon, 13 Aug 2012 09:00:04 -0400 Received: from pequod.mess.org ([93.97.41.153]:47018 "EHLO pequod.mess.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751539Ab2HMM74 (ORCPT ); Mon, 13 Aug 2012 08:59:56 -0400 Received: by pequod.mess.org (Postfix, from userid 1000) id AB7A015FDC; Mon, 13 Aug 2012 13:59:53 +0100 (BST) From: Sean Young To: Mauro Carvalho Chehab , Jarod Wilson , Stefan Macher , linux-media@vger.kernel.org Subject: [PATCH 12/13] [staging] lirc: remove lirc_ttusbir driver Date: Mon, 13 Aug 2012 13:59:50 +0100 Message-Id: <1344862791-30352-12-git-send-email-sean@mess.org> X-Mailer: git-send-email 1.7.2.5 In-Reply-To: <1344862791-30352-1-git-send-email-sean@mess.org> References: <1344862791-30352-1-git-send-email-sean@mess.org> Sender: linux-media-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-media@vger.kernel.org This has been replaced by the ttusbir driver. Signed-off-by: Sean Young --- drivers/staging/media/lirc/Kconfig | 6 - drivers/staging/media/lirc/Makefile | 1 - drivers/staging/media/lirc/lirc_ttusbir.c | 376 ------------------------------ 3 files changed, 383 deletions(-) delete mode 100644 drivers/staging/media/lirc/lirc_ttusbir.c diff --git a/drivers/staging/media/lirc/Kconfig b/drivers/staging/media/lirc/Kconfig index 526ec0f..e60a59f 100644 --- a/drivers/staging/media/lirc/Kconfig +++ b/drivers/staging/media/lirc/Kconfig @@ -63,12 +63,6 @@ config LIRC_SIR help Driver for the SIR IrDA port -config LIRC_TTUSBIR - tristate "Technotrend USB IR Receiver" - depends on LIRC && USB - help - Driver for the Technotrend USB IR Receiver - config LIRC_ZILOG tristate "Zilog/Hauppauge IR Transmitter" depends on LIRC && I2C diff --git a/drivers/staging/media/lirc/Makefile b/drivers/staging/media/lirc/Makefile index d76b0fa..b90fcab 100644 --- a/drivers/staging/media/lirc/Makefile +++ b/drivers/staging/media/lirc/Makefile @@ -10,5 +10,4 @@ obj-$(CONFIG_LIRC_PARALLEL) += lirc_parallel.o obj-$(CONFIG_LIRC_SASEM) += lirc_sasem.o obj-$(CONFIG_LIRC_SERIAL) += lirc_serial.o obj-$(CONFIG_LIRC_SIR) += lirc_sir.o -obj-$(CONFIG_LIRC_TTUSBIR) += lirc_ttusbir.o obj-$(CONFIG_LIRC_ZILOG) += lirc_zilog.o diff --git a/drivers/staging/media/lirc/lirc_ttusbir.c b/drivers/staging/media/lirc/lirc_ttusbir.c deleted file mode 100644 index 3bb865c..0000000 --- a/drivers/staging/media/lirc/lirc_ttusbir.c +++ /dev/null @@ -1,376 +0,0 @@ -/* - * lirc_ttusbir.c - * - * lirc_ttusbir - LIRC device driver for the TechnoTrend USB IR Receiver - * - * Copyright (C) 2007 Stefan Macher - * - * This LIRC driver provides access to the TechnoTrend USB IR Receiver. - * The receiver delivers the IR signal as raw sampled true/false data in - * isochronous USB packets each of size 128 byte. - * Currently the driver reduces the sampling rate by factor of 8 as this - * is still more than enough to decode RC-5 - others should be analyzed. - * But the driver does not rely on RC-5 it should be able to decode every - * IR signal that is not too fast. - */ - -/* - * 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 -#include -#include -#include -#include -#include - -#include -#include - -MODULE_DESCRIPTION("TechnoTrend USB IR device driver for LIRC"); -MODULE_AUTHOR("Stefan Macher (st_maker-lirc@yahoo.de)"); -MODULE_LICENSE("GPL"); - -/* #define DEBUG */ -#ifdef DEBUG -#define DPRINTK printk -#else -#define DPRINTK(_x_, a...) -#endif - -/* function declarations */ -static int probe(struct usb_interface *intf, const struct usb_device_id *id); -static void disconnect(struct usb_interface *intf); -static void urb_complete(struct urb *urb); -static int set_use_inc(void *data); -static void set_use_dec(void *data); - -static int num_urbs = 2; -module_param(num_urbs, int, S_IRUGO); -MODULE_PARM_DESC(num_urbs, - "Number of URBs in queue. Try to increase to 4 in case " - "of problems (default: 2; minimum: 2)"); - -/* table of devices that work with this driver */ -static struct usb_device_id device_id_table[] = { - /* TechnoTrend USB IR Receiver */ - { USB_DEVICE(0x0B48, 0x2003) }, - /* Terminating entry */ - { } -}; -MODULE_DEVICE_TABLE(usb, device_id_table); - -/* USB driver definition */ -static struct usb_driver usb_driver = { - .name = "TTUSBIR", - .id_table = &(device_id_table[0]), - .probe = probe, - .disconnect = disconnect, -}; - -/* USB device definition */ -struct ttusbir_device { - struct usb_driver *usb_driver; - struct usb_device *udev; - struct usb_interface *interf; - struct usb_class_driver class_driver; - unsigned int ifnum; /* Interface number to use */ - unsigned int alt_setting; /* alternate setting to use */ - unsigned int endpoint; /* Endpoint to use */ - struct urb **urb; /* num_urb URB pointers*/ - char **buffer; /* 128 byte buffer for each URB */ - struct lirc_buffer rbuf; /* Buffer towards LIRC */ - struct lirc_driver driver; - int minor; - int last_pulse; /* remembers if last received byte was pulse or space */ - int last_num; /* remembers how many last bytes appeared */ - int opened; -}; - -/*** LIRC specific functions ***/ -static int set_use_inc(void *data) -{ - int i, retval; - struct ttusbir_device *ttusbir = data; - - DPRINTK("Sending first URBs\n"); - /* @TODO Do I need to check if I am already opened */ - ttusbir->opened = 1; - - for (i = 0; i < num_urbs; i++) { - retval = usb_submit_urb(ttusbir->urb[i], GFP_KERNEL); - if (retval) { - dev_err(&ttusbir->interf->dev, - "%s: usb_submit_urb failed on urb %d\n", - __func__, i); - return retval; - } - } - return 0; -} - -static void set_use_dec(void *data) -{ - struct ttusbir_device *ttusbir = data; - - DPRINTK("Device closed\n"); - - ttusbir->opened = 0; -} - -/*** USB specific functions ***/ - -/* - * This mapping table is used to do a very simple filtering of the - * input signal. - * For a value with at least 4 bits set it returns 0xFF otherwise - * 0x00. For faster IR signals this can not be used. But for RC-5 we - * still have about 14 samples per pulse/space, i.e. we sample with 14 - * times higher frequency than the signal frequency - */ -const unsigned char map_table[] = { - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xFF, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xFF, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xFF, - 0x00, 0x00, 0x00, 0xFF, 0x00, 0xFF, 0xFF, 0xFF, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xFF, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xFF, - 0x00, 0x00, 0x00, 0xFF, 0x00, 0xFF, 0xFF, 0xFF, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xFF, - 0x00, 0x00, 0x00, 0xFF, 0x00, 0xFF, 0xFF, 0xFF, - 0x00, 0x00, 0x00, 0xFF, 0x00, 0xFF, 0xFF, 0xFF, - 0x00, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xFF, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xFF, - 0x00, 0x00, 0x00, 0xFF, 0x00, 0xFF, 0xFF, 0xFF, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xFF, - 0x00, 0x00, 0x00, 0xFF, 0x00, 0xFF, 0xFF, 0xFF, - 0x00, 0x00, 0x00, 0xFF, 0x00, 0xFF, 0xFF, 0xFF, - 0x00, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xFF, - 0x00, 0x00, 0x00, 0xFF, 0x00, 0xFF, 0xFF, 0xFF, - 0x00, 0x00, 0x00, 0xFF, 0x00, 0xFF, 0xFF, 0xFF, - 0x00, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, - 0x00, 0x00, 0x00, 0xFF, 0x00, 0xFF, 0xFF, 0xFF, - 0x00, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, - 0x00, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, - 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF -}; - -static void urb_complete(struct urb *urb) -{ - struct ttusbir_device *ttusbir; - unsigned char *buf; - int i; - int l; - - ttusbir = urb->context; - - if (!ttusbir->opened) - return; - - buf = (unsigned char *)urb->transfer_buffer; - - for (i = 0; i < 128; i++) { - /* Here we do the filtering and some kind of down sampling */ - buf[i] = ~map_table[buf[i]]; - if (ttusbir->last_pulse == buf[i]) { - if (ttusbir->last_num < PULSE_MASK/63) - ttusbir->last_num++; - /* - * else we are in a idle period and do not need to - * increment any longer - */ - } else { - l = ttusbir->last_num * 62; /* about 62 = us/byte */ - if (ttusbir->last_pulse) /* pulse or space? */ - l |= PULSE_BIT; - if (!lirc_buffer_full(&ttusbir->rbuf)) { - lirc_buffer_write(&ttusbir->rbuf, (void *)&l); - wake_up_interruptible(&ttusbir->rbuf.wait_poll); - } - ttusbir->last_num = 0; - ttusbir->last_pulse = buf[i]; - } - } - usb_submit_urb(urb, GFP_ATOMIC); /* keep data rolling :-) */ -} - -/* - * Called whenever the USB subsystem thinks we could be the right driver - * to handle this device - */ -static int probe(struct usb_interface *intf, const struct usb_device_id *id) -{ - int alt_set, endp; - int found = 0; - int i, j; - int struct_size; - struct usb_host_interface *host_interf; - struct usb_interface_descriptor *interf_desc; - struct usb_host_endpoint *host_endpoint; - struct ttusbir_device *ttusbir; - - DPRINTK("Module ttusbir probe\n"); - - /* To reduce memory fragmentation we use only one allocation */ - struct_size = sizeof(struct ttusbir_device) + - (sizeof(struct urb *) * num_urbs) + - (sizeof(char *) * num_urbs) + - (num_urbs * 128); - ttusbir = kzalloc(struct_size, GFP_KERNEL); - if (!ttusbir) - return -ENOMEM; - - ttusbir->urb = (struct urb **)((char *)ttusbir + - sizeof(struct ttusbir_device)); - ttusbir->buffer = (char **)((char *)ttusbir->urb + - (sizeof(struct urb *) * num_urbs)); - for (i = 0; i < num_urbs; i++) - ttusbir->buffer[i] = (char *)ttusbir->buffer + - (sizeof(char *)*num_urbs) + (i * 128); - - ttusbir->usb_driver = &usb_driver; - ttusbir->alt_setting = -1; - /* @TODO check if error can be returned */ - ttusbir->udev = usb_get_dev(interface_to_usbdev(intf)); - ttusbir->interf = intf; - ttusbir->last_pulse = 0x00; - ttusbir->last_num = 0; - - /* - * Now look for interface setting we can handle - * We are searching for the alt setting where end point - * 0x82 has max packet size 16 - */ - for (alt_set = 0; alt_set < intf->num_altsetting && !found; alt_set++) { - host_interf = &intf->altsetting[alt_set]; - interf_desc = &host_interf->desc; - for (endp = 0; endp < interf_desc->bNumEndpoints; endp++) { - host_endpoint = &host_interf->endpoint[endp]; - if ((host_endpoint->desc.bEndpointAddress == 0x82) && - (host_endpoint->desc.wMaxPacketSize == 0x10)) { - ttusbir->alt_setting = alt_set; - ttusbir->endpoint = endp; - found = 1; - break; - } - } - } - if (ttusbir->alt_setting != -1) - DPRINTK("alt setting: %d\n", ttusbir->alt_setting); - else { - dev_err(&intf->dev, "Could not find alternate setting\n"); - kfree(ttusbir); - return -EINVAL; - } - - /* OK lets setup this interface setting */ - usb_set_interface(ttusbir->udev, 0, ttusbir->alt_setting); - - /* Store device info in interface structure */ - usb_set_intfdata(intf, ttusbir); - - /* Register as a LIRC driver */ - if (lirc_buffer_init(&ttusbir->rbuf, sizeof(int), 256) < 0) { - dev_err(&intf->dev, "Could not get memory for LIRC data buffer\n"); - usb_set_intfdata(intf, NULL); - kfree(ttusbir); - return -ENOMEM; - } - strcpy(ttusbir->driver.name, "TTUSBIR"); - ttusbir->driver.minor = -1; - ttusbir->driver.code_length = 1; - ttusbir->driver.sample_rate = 0; - ttusbir->driver.data = ttusbir; - ttusbir->driver.add_to_buf = NULL; - ttusbir->driver.rbuf = &ttusbir->rbuf; - ttusbir->driver.set_use_inc = set_use_inc; - ttusbir->driver.set_use_dec = set_use_dec; - ttusbir->driver.dev = &intf->dev; - ttusbir->driver.owner = THIS_MODULE; - ttusbir->driver.features = LIRC_CAN_REC_MODE2; - ttusbir->minor = lirc_register_driver(&ttusbir->driver); - if (ttusbir->minor < 0) { - dev_err(&intf->dev, "Error registering as LIRC driver\n"); - usb_set_intfdata(intf, NULL); - lirc_buffer_free(&ttusbir->rbuf); - kfree(ttusbir); - return -EIO; - } - - /* Allocate and setup the URB that we will use to talk to the device */ - for (i = 0; i < num_urbs; i++) { - ttusbir->urb[i] = usb_alloc_urb(8, GFP_KERNEL); - if (!ttusbir->urb[i]) { - dev_err(&intf->dev, "Could not allocate memory for the URB\n"); - for (j = i - 1; j >= 0; j--) - kfree(ttusbir->urb[j]); - lirc_buffer_free(&ttusbir->rbuf); - lirc_unregister_driver(ttusbir->minor); - kfree(ttusbir); - usb_set_intfdata(intf, NULL); - return -ENOMEM; - } - ttusbir->urb[i]->dev = ttusbir->udev; - ttusbir->urb[i]->context = ttusbir; - ttusbir->urb[i]->pipe = usb_rcvisocpipe(ttusbir->udev, - ttusbir->endpoint); - ttusbir->urb[i]->interval = 1; - ttusbir->urb[i]->transfer_flags = URB_ISO_ASAP; - ttusbir->urb[i]->transfer_buffer = &ttusbir->buffer[i][0]; - ttusbir->urb[i]->complete = urb_complete; - ttusbir->urb[i]->number_of_packets = 8; - ttusbir->urb[i]->transfer_buffer_length = 128; - for (j = 0; j < 8; j++) { - ttusbir->urb[i]->iso_frame_desc[j].offset = j*16; - ttusbir->urb[i]->iso_frame_desc[j].length = 16; - } - } - return 0; -} - -/** - * Called when the driver is unloaded or the device is unplugged - */ -static void disconnect(struct usb_interface *intf) -{ - int i; - struct ttusbir_device *ttusbir; - - DPRINTK("Module ttusbir disconnect\n"); - - ttusbir = (struct ttusbir_device *) usb_get_intfdata(intf); - usb_set_intfdata(intf, NULL); - lirc_unregister_driver(ttusbir->minor); - DPRINTK("unregistered\n"); - - for (i = 0; i < num_urbs; i++) { - usb_kill_urb(ttusbir->urb[i]); - usb_free_urb(ttusbir->urb[i]); - } - DPRINTK("URBs killed\n"); - lirc_buffer_free(&ttusbir->rbuf); - kfree(ttusbir); -} - -module_usb_driver(usb_driver);