Staging: add frontier tranzport and alphatrack drivers
Adds the tranzport and alphatrack drivers to the staging tree. Cc: David Taht <d@teklibre.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>hifive-unleashed-5.1
David Taht
Greg Kroah-Hartman
parent
1242c70df5
commit
8da3dc2875
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@ -89,5 +89,7 @@ source "drivers/staging/rspiusb/Kconfig"
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source "drivers/staging/mimio/Kconfig"
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source "drivers/staging/frontier/Kconfig"
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endif # !STAGING_EXCLUDE_BUILD
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endif # STAGING
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@ -27,3 +27,4 @@ obj-$(CONFIG_ALTERA_PCIE_CHDMA) += altpciechdma/
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obj-$(CONFIG_RTL8187SE) += rtl8187se/
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obj-$(CONFIG_USB_RSPI) += rspiusb/
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obj-$(CONFIG_INPUT_MIMIO) += mimio/
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obj-$(CONFIG_TRANZPORT) += frontier/
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@ -0,0 +1,6 @@
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config TRANZPORT
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tristate "Frontier Tranzport and Alphatrack support"
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depends on USB
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default N
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---help---
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Enable support for the Frontier Tranzport and Alphatrack devices.
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@ -0,0 +1,2 @@
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obj-$(CONFIG_TRANZPORT) += tranzport.o
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obj-$(CONFIG_TRANZPORT) += alphatrack.o
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@ -0,0 +1,28 @@
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This directory contains the USB Tranzport and Alphatrack Kernel drivers for Linux.
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At present the tranzport does reads/writes of 8 byte cmds to /dev/tranzport0 to control
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the lights and screen and wheel
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At present the alphatrack accepts reads/writes of 12 byte cmds to /dev/tranzport0 to control
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the lights and screen and fader.
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Both drivers also have some sysfs hooks that are non-functional at the moment.
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The API is currently closely tied to the ardour revision and WILL change.
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A sysfs interface is PERFECT for simple userspace apps to do fun things with the
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lights and screen. It's fairly lousy for handling input events and very lousy
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for watching the state of the shuttle wheel.
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A linux input events interface is great for the input events and shuttle wheel. It's
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theoretically OK on LEDs. A Fader can be mapped to an absolute mouse device.
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But there is no LCD support at all.
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In the end this is going to be driven by a midi layer, which handles all those
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cases via a defined API, but - among other things - is slow, doesn't do
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flow control, and is a LOT of extra work. Frankly, I'd like to keep the
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core driver simple because the only realtime work really required is
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the bottom half interrupt handler and the output overlapping.
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Exposing some sort of clean aio api to userspace would be perfect. What that
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API looks like? Gah. beats me.
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@ -0,0 +1,9 @@
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TODO:
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- checkpatch.pl clean
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- sparse clean
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- fix userspace interface to be sane
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- possibly just port to userspace with libusb
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- review by the USB developer community
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Please send any patches for this driver to Greg Kroah-Hartman <greg@kroah.com>
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and David Taht <d@teklibre.com>.
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@ -0,0 +1,901 @@
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/*
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* Frontier Designs Alphatrack driver
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*
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* Copyright (C) 2007 Michael Taht (m@taht.net)
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*
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* Based on the usbled driver and ldusb drivers by
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*
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* Copyright (C) 2004 Greg Kroah-Hartman (greg@kroah.com)
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* Copyright (C) 2005 Michael Hund <mhund@ld-didactic.de>
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*
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* The ldusb driver was, in turn, derived from Lego USB Tower driver
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* Copyright (C) 2003 David Glance <advidgsf@sourceforge.net>
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* 2001-2004 Juergen Stuber <starblue@users.sourceforge.net>
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation, version 2.
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*
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*/
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/**
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* This driver uses a ring buffer for time critical reading of
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* interrupt in reports and provides read and write methods for
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* raw interrupt reports.
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*/
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/* Note: this currently uses a dumb ringbuffer for reads and writes.
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* A more optimal driver would cache and kill off outstanding urbs that are
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* now invalid, and ignore ones that already were in the queue but valid
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* as we only have 30 commands for the alphatrack. In particular this is
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* key for getting lights to flash in time as otherwise many commands
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* can be buffered up before the light change makes it to the interface.
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*/
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#include <linux/kernel.h>
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#include <linux/errno.h>
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#include <linux/init.h>
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#include <linux/slab.h>
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#include <linux/module.h>
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#include <linux/kobject.h>
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#include <linux/mutex.h>
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#include <linux/version.h>
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#include <asm/uaccess.h>
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#include <linux/input.h>
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#include <linux/usb.h>
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#include <linux/poll.h>
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#include "surface_sysfs.h"
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/* make this work on older kernel versions */
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#if LINUX_VERSION_CODE < KERNEL_VERSION(2, 6, 19)
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#include "frontier_compat.h"
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#endif /* older kernel versions */
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#include "alphatrack.h"
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#define VENDOR_ID 0x165b
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#define PRODUCT_ID 0xfad1
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#ifdef CONFIG_USB_DYNAMIC_MINORS
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#define USB_ALPHATRACK_MINOR_BASE 0
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#else
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// FIXME 176 - is another driver's minor - apply for that
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// #define USB_ALPHATRACK_MINOR_BASE 177
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#define USB_ALPHATRACK_MINOR_BASE 176
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#endif
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/* table of devices that work with this driver */
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static struct usb_device_id usb_alphatrack_table [] = {
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{ USB_DEVICE(VENDOR_ID, PRODUCT_ID) },
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{ } /* Terminating entry */
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};
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MODULE_DEVICE_TABLE(usb, usb_alphatrack_table);
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MODULE_VERSION("0.40");
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MODULE_AUTHOR("Mike Taht <m@taht.net>");
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MODULE_DESCRIPTION("Alphatrack USB Driver");
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MODULE_LICENSE("GPL");
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MODULE_SUPPORTED_DEVICE("Frontier Designs Alphatrack Control Surface");
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/* These aren't done yet */
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#define ALPHATRACK_HAVE_SYSFS 0
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#define SUPPRESS_EXTRA_ONLINE_EVENTS 0
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#define BUFFERED_WRITES 0
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#define SUPPRESS_EXTRA_OFFLINE_EVENTS 0
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#define COMPRESS_FADER_EVENTS 0
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#define BUFFERED_READS 1
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#define RING_BUFFER_SIZE 512
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#define WRITE_BUFFER_SIZE 34
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#define ALPHATRACK_USB_TIMEOUT 10
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#define OUTPUT_CMD_SIZE 8
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#define INPUT_CMD_SIZE 12
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static int debug = 0;
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/* Use our own dbg macro */
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#define dbg_info(dev, format, arg...) do { if (debug) dev_info(dev , format , ## arg); } while (0)
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#if 0
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#define alphatrack_ocmd_info(dev, cmd, format, arg...) do { if (debug) ocmd_info(dev , cmd , format, ## arg); } while (0)
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#define alphatrack_icmd_info(dev, cmd, format, arg...) do { if (debug) icmd_info(dev , cmd, format, ## arg); } while (0)
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#else
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#define alphatrack_ocmd_info(dev, cmd, format, arg...)
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#define alphatrack_icmd_info(dev, cmd, format, arg...)
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#endif
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/* Module parameters */
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module_param(debug, int, S_IRUGO | S_IWUSR);
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MODULE_PARM_DESC(debug, "Debug enabled or not");
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/* All interrupt in transfers are collected in a ring buffer to
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* avoid racing conditions and get better performance of the driver.
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*/
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static int ring_buffer_size = RING_BUFFER_SIZE;
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module_param(ring_buffer_size, int, S_IRUGO);
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MODULE_PARM_DESC(ring_buffer_size, "Read ring buffer size");
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/* The write_buffer can one day contain more than one interrupt out transfer.
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*/
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static int write_buffer_size = WRITE_BUFFER_SIZE;
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module_param(write_buffer_size, int, S_IRUGO);
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MODULE_PARM_DESC(write_buffer_size, "Write buffer size");
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/*
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* Increase the interval for debugging purposes.
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* or set to 1 to use the standard interval from the endpoint descriptors.
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*/
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static int min_interrupt_in_interval = ALPHATRACK_USB_TIMEOUT;
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module_param(min_interrupt_in_interval, int, 0);
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MODULE_PARM_DESC(min_interrupt_in_interval, "Minimum interrupt in interval in ms");
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static int min_interrupt_out_interval = ALPHATRACK_USB_TIMEOUT;
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module_param(min_interrupt_out_interval, int, 0);
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MODULE_PARM_DESC(min_interrupt_out_interval, "Minimum interrupt out interval in ms");
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/* Structure to hold all of our device specific stuff */
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struct usb_alphatrack {
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struct semaphore sem; /* locks this structure */
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struct usb_interface* intf; /* save off the usb interface pointer */
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int open_count; /* number of times this port has been opened */
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struct alphatrack_icmd (*ring_buffer)[RING_BUFFER_SIZE]; /* just make c happy */
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struct alphatrack_ocmd (*write_buffer)[WRITE_BUFFER_SIZE]; /* just make c happy */
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unsigned int ring_head;
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unsigned int ring_tail;
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wait_queue_head_t read_wait;
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wait_queue_head_t write_wait;
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unsigned char* interrupt_in_buffer;
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unsigned char* oldi_buffer;
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struct usb_endpoint_descriptor* interrupt_in_endpoint;
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struct urb* interrupt_in_urb;
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int interrupt_in_interval;
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size_t interrupt_in_endpoint_size;
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int interrupt_in_running;
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int interrupt_in_done;
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char* interrupt_out_buffer;
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struct usb_endpoint_descriptor* interrupt_out_endpoint;
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struct urb* interrupt_out_urb;
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int interrupt_out_interval;
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size_t interrupt_out_endpoint_size;
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int interrupt_out_busy;
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atomic_t writes_pending;
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int event; /* alternate interface to events */
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int fader; /* 10 bits */
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int lights; /* 23 bits */
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unsigned char dump_state; /* 0 if disabled 1 if enabled */
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unsigned char enable; /* 0 if disabled 1 if enabled */
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unsigned char offline; /* if the device is out of range or asleep */
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unsigned char verbose; /* be verbose in error reporting */
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unsigned char last_cmd[OUTPUT_CMD_SIZE];
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unsigned char screen[32];
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};
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/* prevent races between open() and disconnect() */
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static DEFINE_MUTEX(disconnect_mutex);
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/* forward declaration */
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static struct usb_driver usb_alphatrack_driver;
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static void icmd_info(struct usb_alphatrack *dev, char *cmd, char *str, char *a) {
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/*
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if (dev->verbose) {
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} else {
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}
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*/
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}
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static void ocmd_info(struct usb_alphatrack *dev, char *cmd, char *str, char* a) {
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/*
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if (dev->verbose) {
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} else {
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}
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*/
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}
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/**
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* usb_alphatrack_abort_transfers
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* aborts transfers and frees associated data structures
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*/
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static void usb_alphatrack_abort_transfers(struct usb_alphatrack *dev)
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{
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/* shutdown transfer */
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if (dev->interrupt_in_running) {
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dev->interrupt_in_running = 0;
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if (dev->intf)
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usb_kill_urb(dev->interrupt_in_urb);
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}
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if (dev->interrupt_out_busy)
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if (dev->intf)
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usb_kill_urb(dev->interrupt_out_urb);
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}
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#if ALPHATRACK_HAVE_SYSFS
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/* lots and lots and lots of sysfs stuff */
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/* Currently borked, probably useless */
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#include "alphatrack_sysfs.c"
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#endif
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/**
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* usb_alphatrack_delete
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*/
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static void usb_alphatrack_delete(struct usb_alphatrack *dev)
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{
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usb_alphatrack_abort_transfers(dev);
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usb_free_urb(dev->interrupt_in_urb);
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usb_free_urb(dev->interrupt_out_urb);
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kfree(dev->ring_buffer);
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kfree(dev->interrupt_in_buffer);
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kfree(dev->interrupt_out_buffer);
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kfree(dev); // fixme oldi_buffer
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}
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/**
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* usb_alphatrack_interrupt_in_callback
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*/
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static void usb_alphatrack_interrupt_in_callback(struct urb *urb)
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{
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struct usb_alphatrack *dev = urb->context;
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unsigned int next_ring_head;
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int retval = -1;
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int *iptr;
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if (urb->status) {
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if (urb->status == -ENOENT ||
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urb->status == -ECONNRESET ||
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urb->status == -ESHUTDOWN) {
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goto exit;
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} else {
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dbg_info(&dev->intf->dev, "%s: nonzero status received: %d\n",
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__FUNCTION__, urb->status);
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goto resubmit; /* maybe we can recover */
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}
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}
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if (urb->actual_length != INPUT_CMD_SIZE) {
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dev_warn(&dev->intf->dev,
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"Urb length was %d bytes!! Do something intelligent \n", urb->actual_length);
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} else {
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alphatrack_ocmd_info(&dev->intf->dev,&(*dev->ring_buffer)[dev->ring_tail].cmd,"%s", "bla");
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if(memcmp(dev->interrupt_in_buffer,dev->oldi_buffer,INPUT_CMD_SIZE)==0) {
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goto resubmit;
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}
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memcpy(dev->oldi_buffer,dev->interrupt_in_buffer,INPUT_CMD_SIZE);
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#if SUPPRESS_EXTRA_OFFLINE_EVENTS
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if(dev->offline == 2 && dev->interrupt_in_buffer[1] == 0xff) { goto resubmit; }
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if(dev->offline == 1 && dev->interrupt_in_buffer[1] == 0xff) { dev->offline = 2; goto resubmit; }
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/* Always pass one offline event up the stack */
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if(dev->offline > 0 && dev->interrupt_in_buffer[1] != 0xff) { dev->offline = 0; }
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if(dev->offline == 0 && dev->interrupt_in_buffer[1] == 0xff) { dev->offline = 1; }
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#endif
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dbg_info(&dev->intf->dev, "%s: head, tail are %x, %x\n", __FUNCTION__,dev->ring_head,dev->ring_tail);
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next_ring_head = (dev->ring_head+1) % ring_buffer_size;
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if (next_ring_head != dev->ring_tail) {
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memcpy(&((*dev->ring_buffer)[dev->ring_head]),
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dev->interrupt_in_buffer, urb->actual_length);
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dev->ring_head = next_ring_head;
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retval = 0;
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memset(dev->interrupt_in_buffer, 0, urb->actual_length);
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} else {
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dev_warn(&dev->intf->dev,
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"Ring buffer overflow, %d bytes dropped\n",
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urb->actual_length);
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memset(dev->interrupt_in_buffer, 0, urb->actual_length);
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}
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}
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resubmit:
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/* resubmit if we're still running */
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if (dev->interrupt_in_running && dev->intf) {
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retval = usb_submit_urb(dev->interrupt_in_urb, GFP_ATOMIC);
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if (retval)
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dev_err(&dev->intf->dev,
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"usb_submit_urb failed (%d)\n", retval);
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}
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exit:
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dev->interrupt_in_done = 1;
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wake_up_interruptible(&dev->read_wait);
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}
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/**
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* usb_alphatrack_interrupt_out_callback
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*/
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static void usb_alphatrack_interrupt_out_callback(struct urb *urb)
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{
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struct usb_alphatrack *dev = urb->context;
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/* sync/async unlink faults aren't errors */
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if (urb->status && !(urb->status == -ENOENT ||
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urb->status == -ECONNRESET ||
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urb->status == -ESHUTDOWN))
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dbg_info(&dev->intf->dev,
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"%s - nonzero write interrupt status received: %d\n",
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__FUNCTION__, urb->status);
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atomic_dec(&dev->writes_pending);
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dev->interrupt_out_busy = 0;
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wake_up_interruptible(&dev->write_wait);
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}
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/**
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* usb_alphatrack_open
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*/
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static int usb_alphatrack_open(struct inode *inode, struct file *file)
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{
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struct usb_alphatrack *dev;
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int subminor;
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int retval = 0;
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struct usb_interface *interface;
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nonseekable_open(inode, file);
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subminor = iminor(inode);
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mutex_lock(&disconnect_mutex);
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interface = usb_find_interface(&usb_alphatrack_driver, subminor);
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if (!interface) {
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err("%s - error, can't find device for minor %d\n",
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__FUNCTION__, subminor);
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retval = -ENODEV;
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goto unlock_disconnect_exit;
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}
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dev = usb_get_intfdata(interface);
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if (!dev) {
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retval = -ENODEV;
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goto unlock_disconnect_exit;
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}
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/* lock this device */
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if (down_interruptible(&dev->sem)) {
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retval = -ERESTARTSYS;
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goto unlock_disconnect_exit;
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}
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/* allow opening only once */
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if (dev->open_count) {
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retval = -EBUSY;
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goto unlock_exit;
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}
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dev->open_count = 1;
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/* initialize in direction */
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dev->ring_head = 0;
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dev->ring_tail = 0;
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usb_fill_int_urb(dev->interrupt_in_urb,
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interface_to_usbdev(interface),
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||||
usb_rcvintpipe(interface_to_usbdev(interface),
|
||||
dev->interrupt_in_endpoint->bEndpointAddress),
|
||||
dev->interrupt_in_buffer,
|
||||
dev->interrupt_in_endpoint_size,
|
||||
usb_alphatrack_interrupt_in_callback,
|
||||
dev,
|
||||
dev->interrupt_in_interval);
|
||||
|
||||
dev->interrupt_in_running = 1;
|
||||
dev->interrupt_in_done = 0;
|
||||
dev->enable = 1;
|
||||
dev->offline = 0;
|
||||
|
||||
retval = usb_submit_urb(dev->interrupt_in_urb, GFP_KERNEL);
|
||||
if (retval) {
|
||||
dev_err(&interface->dev, "Couldn't submit interrupt_in_urb %d\n", retval);
|
||||
dev->interrupt_in_running = 0;
|
||||
dev->open_count = 0;
|
||||
goto unlock_exit;
|
||||
}
|
||||
|
||||
/* save device in the file's private structure */
|
||||
file->private_data = dev;
|
||||
|
||||
|
||||
unlock_exit:
|
||||
up(&dev->sem);
|
||||
|
||||
unlock_disconnect_exit:
|
||||
mutex_unlock(&disconnect_mutex);
|
||||
|
||||
return retval;
|
||||
}
|
||||
|
||||
/**
|
||||
* usb_alphatrack_release
|
||||
*/
|
||||
static int usb_alphatrack_release(struct inode *inode, struct file *file)
|
||||
{
|
||||
struct usb_alphatrack *dev;
|
||||
int retval = 0;
|
||||
|
||||
dev = file->private_data;
|
||||
|
||||
if (dev == NULL) {
|
||||
retval = -ENODEV;
|
||||
goto exit;
|
||||
}
|
||||
|
||||
if (down_interruptible(&dev->sem)) {
|
||||
retval = -ERESTARTSYS;
|
||||
goto exit;
|
||||
}
|
||||
|
||||
if (dev->open_count != 1) {
|
||||
retval = -ENODEV;
|
||||
goto unlock_exit;
|
||||
}
|
||||
|
||||
if (dev->intf == NULL) {
|
||||
/* the device was unplugged before the file was released */
|
||||
up(&dev->sem);
|
||||
/* unlock here as usb_alphatrack_delete frees dev */
|
||||
usb_alphatrack_delete(dev);
|
||||
retval = -ENODEV;
|
||||
goto exit;
|
||||
}
|
||||
|
||||
/* wait until write transfer is finished */
|
||||
if (dev->interrupt_out_busy)
|
||||
wait_event_interruptible_timeout(dev->write_wait, !dev->interrupt_out_busy, 2 * HZ);
|
||||
usb_alphatrack_abort_transfers(dev);
|
||||
dev->open_count = 0;
|
||||
|
||||
unlock_exit:
|
||||
up(&dev->sem);
|
||||
|
||||
exit:
|
||||
return retval;
|
||||
}
|
||||
|
||||
/**
|
||||
* usb_alphatrack_poll
|
||||
*/
|
||||
static unsigned int usb_alphatrack_poll(struct file *file, poll_table *wait)
|
||||
{
|
||||
struct usb_alphatrack *dev;
|
||||
unsigned int mask = 0;
|
||||
|
||||
dev = file->private_data;
|
||||
|
||||
poll_wait(file, &dev->read_wait, wait);
|
||||
poll_wait(file, &dev->write_wait, wait);
|
||||
|
||||
if (dev->ring_head != dev->ring_tail)
|
||||
mask |= POLLIN | POLLRDNORM;
|
||||
if (!dev->interrupt_out_busy)
|
||||
mask |= POLLOUT | POLLWRNORM;
|
||||
|
||||
return mask;
|
||||
}
|
||||
|
||||
/**
|
||||
* usb_alphatrack_read
|
||||
*/
|
||||
static ssize_t usb_alphatrack_read(struct file *file, char __user *buffer, size_t count,
|
||||
loff_t *ppos)
|
||||
{
|
||||
struct usb_alphatrack *dev;
|
||||
int retval = 0;
|
||||
|
||||
int c = 0;
|
||||
|
||||
dev = file->private_data;
|
||||
|
||||
/* verify that we actually have some data to read */
|
||||
if (count == 0)
|
||||
goto exit;
|
||||
|
||||
/* lock this object */
|
||||
if (down_interruptible(&dev->sem)) {
|
||||
retval = -ERESTARTSYS;
|
||||
goto exit;
|
||||
}
|
||||
|
||||
/* verify that the device wasn't unplugged */
|
||||
if (dev->intf == NULL) {
|
||||
retval = -ENODEV;
|
||||
err("No device or device unplugged %d\n", retval);
|
||||
goto unlock_exit;
|
||||
}
|
||||
|
||||
while (dev->ring_head == dev->ring_tail) {
|
||||
if (file->f_flags & O_NONBLOCK) {
|
||||
retval = -EAGAIN;
|
||||
goto unlock_exit;
|
||||
}
|
||||
dev->interrupt_in_done = 0 ;
|
||||
retval = wait_event_interruptible(dev->read_wait, dev->interrupt_in_done);
|
||||
if (retval < 0) {
|
||||
goto unlock_exit;
|
||||
}
|
||||
}
|
||||
|
||||
alphatrack_ocmd_info(&dev->intf->dev, &(*dev->ring_buffer)[dev->ring_tail].cmd, "%s", ": copying to userspace");
|
||||
|
||||
c = 0;
|
||||
while((c < count) && (dev->ring_tail != dev->ring_head)) {
|
||||
if (copy_to_user(&buffer[c], &(*dev->ring_buffer)[dev->ring_tail], INPUT_CMD_SIZE)) {
|
||||
retval = -EFAULT;
|
||||
goto unlock_exit;
|
||||
}
|
||||
dev->ring_tail = (dev->ring_tail+1) % ring_buffer_size;
|
||||
c+=INPUT_CMD_SIZE;
|
||||
dbg_info(&dev->intf->dev, "%s: head, tail are %x, %x\n", __FUNCTION__,dev->ring_head,dev->ring_tail);
|
||||
}
|
||||
retval = c;
|
||||
|
||||
unlock_exit:
|
||||
/* unlock the device */
|
||||
up(&dev->sem);
|
||||
|
||||
exit:
|
||||
return retval;
|
||||
}
|
||||
|
||||
/**
|
||||
* usb_alphatrack_write
|
||||
*/
|
||||
static ssize_t usb_alphatrack_write(struct file *file, const char __user *buffer,
|
||||
size_t count, loff_t *ppos)
|
||||
{
|
||||
struct usb_alphatrack *dev;
|
||||
size_t bytes_to_write;
|
||||
int retval = 0;
|
||||
|
||||
dev = file->private_data;
|
||||
|
||||
/* verify that we actually have some data to write */
|
||||
if (count == 0)
|
||||
goto exit;
|
||||
|
||||
/* lock this object */
|
||||
if (down_interruptible(&dev->sem)) {
|
||||
retval = -ERESTARTSYS;
|
||||
goto exit;
|
||||
}
|
||||
|
||||
/* verify that the device wasn't unplugged */
|
||||
if (dev->intf == NULL) {
|
||||
retval = -ENODEV;
|
||||
err("No device or device unplugged %d\n", retval);
|
||||
goto unlock_exit;
|
||||
}
|
||||
|
||||
/* wait until previous transfer is finished */
|
||||
if (dev->interrupt_out_busy) {
|
||||
if (file->f_flags & O_NONBLOCK) {
|
||||
retval = -EAGAIN;
|
||||
goto unlock_exit;
|
||||
}
|
||||
retval = wait_event_interruptible(dev->write_wait, !dev->interrupt_out_busy);
|
||||
if (retval < 0) {
|
||||
goto unlock_exit;
|
||||
}
|
||||
}
|
||||
|
||||
/* write the data into interrupt_out_buffer from userspace */
|
||||
/* FIXME - if you write more than 12 bytes this breaks */
|
||||
bytes_to_write = min(count, write_buffer_size*dev->interrupt_out_endpoint_size);
|
||||
if (bytes_to_write < count)
|
||||
dev_warn(&dev->intf->dev, "Write buffer overflow, %zd bytes dropped\n",count-bytes_to_write);
|
||||
|
||||
dbg_info(&dev->intf->dev, "%s: count = %zd, bytes_to_write = %zd\n", __FUNCTION__, count, bytes_to_write);
|
||||
|
||||
if (copy_from_user(dev->interrupt_out_buffer, buffer, bytes_to_write)) {
|
||||
retval = -EFAULT;
|
||||
goto unlock_exit;
|
||||
}
|
||||
|
||||
if (dev->interrupt_out_endpoint == NULL) {
|
||||
err("Endpoint should not be be null! \n");
|
||||
goto unlock_exit;
|
||||
}
|
||||
|
||||
/* send off the urb */
|
||||
usb_fill_int_urb(dev->interrupt_out_urb,
|
||||
interface_to_usbdev(dev->intf),
|
||||
usb_sndintpipe(interface_to_usbdev(dev->intf),
|
||||
dev->interrupt_out_endpoint->bEndpointAddress),
|
||||
dev->interrupt_out_buffer,
|
||||
bytes_to_write,
|
||||
usb_alphatrack_interrupt_out_callback,
|
||||
dev,
|
||||
dev->interrupt_out_interval);
|
||||
dev->interrupt_out_busy = 1;
|
||||
atomic_inc(&dev->writes_pending);
|
||||
wmb();
|
||||
|
||||
retval = usb_submit_urb(dev->interrupt_out_urb, GFP_KERNEL);
|
||||
if (retval) {
|
||||
dev->interrupt_out_busy = 0;
|
||||
err("Couldn't submit interrupt_out_urb %d\n", retval);
|
||||
atomic_dec(&dev->writes_pending);
|
||||
goto unlock_exit;
|
||||
}
|
||||
retval = bytes_to_write;
|
||||
|
||||
unlock_exit:
|
||||
/* unlock the device */
|
||||
up(&dev->sem);
|
||||
|
||||
exit:
|
||||
return retval;
|
||||
}
|
||||
|
||||
/* file operations needed when we register this driver */
|
||||
static const struct file_operations usb_alphatrack_fops = {
|
||||
.owner = THIS_MODULE,
|
||||
.read = usb_alphatrack_read,
|
||||
.write = usb_alphatrack_write,
|
||||
.open = usb_alphatrack_open,
|
||||
.release = usb_alphatrack_release,
|
||||
.poll = usb_alphatrack_poll,
|
||||
};
|
||||
|
||||
/*
|
||||
* usb class driver info in order to get a minor number from the usb core,
|
||||
* and to have the device registered with the driver core
|
||||
*/
|
||||
|
||||
static struct usb_class_driver usb_alphatrack_class = {
|
||||
.name = "alphatrack%d",
|
||||
.fops = &usb_alphatrack_fops,
|
||||
.minor_base = USB_ALPHATRACK_MINOR_BASE,
|
||||
};
|
||||
|
||||
|
||||
/**
|
||||
* usb_alphatrack_probe
|
||||
*
|
||||
* Called by the usb core when a new device is connected that it thinks
|
||||
* this driver might be interested in.
|
||||
*/
|
||||
static int usb_alphatrack_probe(struct usb_interface *intf, const struct usb_device_id *id)
|
||||
{
|
||||
struct usb_device *udev = interface_to_usbdev(intf);
|
||||
struct usb_alphatrack *dev = NULL;
|
||||
struct usb_host_interface *iface_desc;
|
||||
struct usb_endpoint_descriptor *endpoint;
|
||||
int i;
|
||||
int true_size;
|
||||
int retval = -ENOMEM;
|
||||
|
||||
/* allocate memory for our device state and intialize it */
|
||||
|
||||
dev = kzalloc(sizeof(*dev), GFP_KERNEL);
|
||||
if (dev == NULL) {
|
||||
dev_err(&intf->dev, "Out of memory\n");
|
||||
goto exit;
|
||||
}
|
||||
init_MUTEX(&dev->sem);
|
||||
dev->intf = intf;
|
||||
init_waitqueue_head(&dev->read_wait);
|
||||
init_waitqueue_head(&dev->write_wait);
|
||||
|
||||
iface_desc = intf->cur_altsetting;
|
||||
|
||||
/* set up the endpoint information */
|
||||
for (i = 0; i < iface_desc->desc.bNumEndpoints; ++i) {
|
||||
endpoint = &iface_desc->endpoint[i].desc;
|
||||
|
||||
if (usb_endpoint_is_int_in(endpoint))
|
||||
dev->interrupt_in_endpoint = endpoint;
|
||||
|
||||
if (usb_endpoint_is_int_out(endpoint))
|
||||
dev->interrupt_out_endpoint = endpoint;
|
||||
}
|
||||
if (dev->interrupt_in_endpoint == NULL) {
|
||||
dev_err(&intf->dev, "Interrupt in endpoint not found\n");
|
||||
goto error;
|
||||
}
|
||||
if (dev->interrupt_out_endpoint == NULL)
|
||||
dev_warn(&intf->dev, "Interrupt out endpoint not found (using control endpoint instead)\n");
|
||||
|
||||
dev->interrupt_in_endpoint_size = le16_to_cpu(dev->interrupt_in_endpoint->wMaxPacketSize);
|
||||
|
||||
if (dev->interrupt_in_endpoint_size != 64)
|
||||
dev_warn(&intf->dev, "Interrupt in endpoint size is not 64!\n");
|
||||
|
||||
if(ring_buffer_size == 0) { ring_buffer_size = RING_BUFFER_SIZE; }
|
||||
|
||||
true_size = min(ring_buffer_size,RING_BUFFER_SIZE);
|
||||
|
||||
/* FIXME - there are more usb_alloc routines for dma correctness. Needed? */
|
||||
|
||||
// dev->ring_buffer = kmalloc((true_size*sizeof(struct alphatrack_icmd))+12, GFP_KERNEL);
|
||||
dev->ring_buffer = kmalloc((true_size*sizeof(struct alphatrack_icmd)), GFP_KERNEL);
|
||||
|
||||
if (!dev->ring_buffer) {
|
||||
dev_err(&intf->dev, "Couldn't allocate input ring_buffer of size %d\n",true_size);
|
||||
goto error;
|
||||
}
|
||||
|
||||
dev->interrupt_in_buffer = kmalloc(dev->interrupt_in_endpoint_size, GFP_KERNEL);
|
||||
|
||||
if (!dev->interrupt_in_buffer) {
|
||||
dev_err(&intf->dev, "Couldn't allocate interrupt_in_buffer\n");
|
||||
goto error;
|
||||
}
|
||||
dev->oldi_buffer = kmalloc(dev->interrupt_in_endpoint_size, GFP_KERNEL);
|
||||
if (!dev->oldi_buffer) {
|
||||
dev_err(&intf->dev, "Couldn't allocate old buffer\n");
|
||||
goto error;
|
||||
}
|
||||
dev->interrupt_in_urb = usb_alloc_urb(0, GFP_KERNEL);
|
||||
if (!dev->interrupt_in_urb) {
|
||||
dev_err(&intf->dev, "Couldn't allocate interrupt_in_urb\n");
|
||||
goto error;
|
||||
}
|
||||
|
||||
dev->interrupt_out_endpoint_size = dev->interrupt_out_endpoint ? le16_to_cpu(dev->interrupt_out_endpoint->wMaxPacketSize) :
|
||||
udev->descriptor.bMaxPacketSize0;
|
||||
|
||||
if (dev->interrupt_out_endpoint_size !=64)
|
||||
dev_warn(&intf->dev, "Interrupt out endpoint size is not 64!)\n");
|
||||
|
||||
if(write_buffer_size == 0) { write_buffer_size = WRITE_BUFFER_SIZE; }
|
||||
true_size = min(write_buffer_size,WRITE_BUFFER_SIZE);
|
||||
|
||||
dev->interrupt_out_buffer = kmalloc(true_size*dev->interrupt_out_endpoint_size, GFP_KERNEL);
|
||||
|
||||
if (!dev->interrupt_out_buffer) {
|
||||
dev_err(&intf->dev, "Couldn't allocate interrupt_out_buffer\n");
|
||||
goto error;
|
||||
}
|
||||
|
||||
dev->write_buffer = kmalloc(sizeof(struct alphatrack_ocmd)*true_size, GFP_KERNEL);
|
||||
|
||||
if (!dev->write_buffer) {
|
||||
dev_err(&intf->dev, "Couldn't allocate write_buffer \n");
|
||||
goto error;
|
||||
}
|
||||
|
||||
dev->interrupt_out_urb = usb_alloc_urb(0, GFP_KERNEL);
|
||||
if (!dev->interrupt_out_urb) {
|
||||
dev_err(&intf->dev, "Couldn't allocate interrupt_out_urb\n");
|
||||
goto error;
|
||||
}
|
||||
dev->interrupt_in_interval = min_interrupt_in_interval > dev->interrupt_in_endpoint->bInterval ? min_interrupt_in_interval : dev->interrupt_in_endpoint->bInterval;
|
||||
if (dev->interrupt_out_endpoint)
|
||||
dev->interrupt_out_interval = min_interrupt_out_interval > dev->interrupt_out_endpoint->bInterval ? min_interrupt_out_interval : dev->interrupt_out_endpoint->bInterval;
|
||||
|
||||
/* we can register the device now, as it is ready */
|
||||
usb_set_intfdata(intf, dev);
|
||||
|
||||
atomic_set(&dev->writes_pending,0);
|
||||
retval = usb_register_dev(intf, &usb_alphatrack_class);
|
||||
if (retval) {
|
||||
/* something prevented us from registering this driver */
|
||||
dev_err(&intf->dev, "Not able to get a minor for this device.\n");
|
||||
usb_set_intfdata(intf, NULL);
|
||||
goto error;
|
||||
}
|
||||
|
||||
/* let the user know what node this device is now attached to */
|
||||
dev_info(&intf->dev, "Alphatrack Device #%d now attached to major %d minor %d\n",
|
||||
(intf->minor - USB_ALPHATRACK_MINOR_BASE), USB_MAJOR, intf->minor);
|
||||
|
||||
#if ALPHATRACK_HAVE_SYSFS
|
||||
if((retval = device_create_file(&intf->dev, &dev_attr_event))) goto error;
|
||||
if((retval = device_create_file(&intf->dev, &dev_attr_dump_state))) goto error;
|
||||
if((retval = device_create_file(&intf->dev, &dev_attr_enable))) goto error;
|
||||
if((retval = device_create_file(&intf->dev, &dev_attr_offline))) goto error;
|
||||
|
||||
/* exercise sysfs */
|
||||
|
||||
set_lights("32767"); // turn on all the lights
|
||||
set_fader0("1023"); // Move fader to max
|
||||
set_screen("INITIALIZING ALPHATRACK...");
|
||||
set_lights("0");
|
||||
set_fader0("0");
|
||||
set_screen(" ");
|
||||
|
||||
#endif
|
||||
|
||||
exit:
|
||||
return retval;
|
||||
|
||||
error:
|
||||
usb_alphatrack_delete(dev);
|
||||
|
||||
return retval;
|
||||
}
|
||||
|
||||
/**
|
||||
* usb_alphatrack_disconnect
|
||||
*
|
||||
* Called by the usb core when the device is removed from the system.
|
||||
*/
|
||||
static void usb_alphatrack_disconnect(struct usb_interface *intf)
|
||||
{
|
||||
struct usb_alphatrack *dev;
|
||||
int minor;
|
||||
|
||||
mutex_lock(&disconnect_mutex);
|
||||
|
||||
dev = usb_get_intfdata(intf);
|
||||
usb_set_intfdata(intf, NULL);
|
||||
|
||||
down(&dev->sem);
|
||||
|
||||
minor = intf->minor;
|
||||
|
||||
/* give back our minor */
|
||||
usb_deregister_dev(intf, &usb_alphatrack_class);
|
||||
|
||||
/* if the device is not opened, then we clean up right now */
|
||||
if (!dev->open_count) {
|
||||
up(&dev->sem);
|
||||
usb_alphatrack_delete(dev);
|
||||
} else {
|
||||
dev->intf = NULL;
|
||||
up(&dev->sem);
|
||||
}
|
||||
|
||||
atomic_set(&dev->writes_pending,0);
|
||||
mutex_unlock(&disconnect_mutex);
|
||||
|
||||
dev_info(&intf->dev, "Alphatrack Surface #%d now disconnected\n",
|
||||
(minor - USB_ALPHATRACK_MINOR_BASE));
|
||||
}
|
||||
|
||||
/* usb specific object needed to register this driver with the usb subsystem */
|
||||
static struct usb_driver usb_alphatrack_driver = {
|
||||
.name = "alphatrack",
|
||||
.probe = usb_alphatrack_probe,
|
||||
.disconnect = usb_alphatrack_disconnect,
|
||||
.id_table = usb_alphatrack_table,
|
||||
};
|
||||
|
||||
/**
|
||||
* usb_alphatrack_init
|
||||
*/
|
||||
static int __init usb_alphatrack_init(void)
|
||||
{
|
||||
int retval;
|
||||
|
||||
/* register this driver with the USB subsystem */
|
||||
retval = usb_register(&usb_alphatrack_driver);
|
||||
if (retval)
|
||||
err("usb_register failed for the "__FILE__" driver. Error number %d\n", retval);
|
||||
|
||||
return retval;
|
||||
}
|
||||
|
||||
/**
|
||||
* usb_alphatrack_exit
|
||||
*/
|
||||
static void __exit usb_alphatrack_exit(void)
|
||||
{
|
||||
/* deregister this driver with the USB subsystem */
|
||||
usb_deregister(&usb_alphatrack_driver);
|
||||
}
|
||||
|
||||
module_init(usb_alphatrack_init);
|
||||
module_exit(usb_alphatrack_exit);
|
||||
|
||||
|
|
@ -0,0 +1,117 @@
|
|||
#define show_set_bit(a) show_set_mbit(alphatrack,a)
|
||||
#define show_set_cmd(a) show_set_mcmd(alphatrack,a)
|
||||
#define show_set_int(a) show_set_mint(alphatrack,a)
|
||||
#define show_set_char(a) show_set_mchar(alphatrack,a)
|
||||
#define show_set_light(a) show_set_ebit(alphatrack,LightID,lights,a)
|
||||
#define show_set_button(a) show_set_ebit(alphatrack,ButtonID,button,a)
|
||||
|
||||
struct alphatrack_icmd {
|
||||
unsigned char cmd[12];
|
||||
};
|
||||
|
||||
struct alphatrack_ocmd {
|
||||
unsigned char cmd[8];
|
||||
};
|
||||
|
||||
enum LightID {
|
||||
LIGHT_EQ = 0,
|
||||
LIGHT_OUT,
|
||||
LIGHT_F2,
|
||||
LIGHT_SEND,
|
||||
LIGHT_IN,
|
||||
LIGHT_F1,
|
||||
LIGHT_PAN,
|
||||
LIGHT_UNDEF1,
|
||||
LIGHT_UNDEF2,
|
||||
LIGHT_SHIFT,
|
||||
LIGHT_TRACKMUTE,
|
||||
LIGHT_TRACKSOLO,
|
||||
LIGHT_TRACKREC,
|
||||
LIGHT_READ,
|
||||
LIGHT_WRITE,
|
||||
LIGHT_ANYSOLO,
|
||||
LIGHT_AUTO,
|
||||
LIGHT_F4,
|
||||
LIGHT_RECORD,
|
||||
LIGHT_WINDOW,
|
||||
LIGHT_PLUGIN,
|
||||
LIGHT_F3,
|
||||
LIGHT_LOOP
|
||||
};
|
||||
|
||||
static const char *Lightname[] = { "eq",
|
||||
"out",
|
||||
"f2",
|
||||
"send",
|
||||
"in",
|
||||
"f1",
|
||||
"pan",
|
||||
"undef1",
|
||||
"undef2",
|
||||
"shift",
|
||||
"mute",
|
||||
"tracksolo",
|
||||
"trackrec",
|
||||
"read",
|
||||
"write",
|
||||
"anysolo",
|
||||
"auto",
|
||||
"f4",
|
||||
"record",
|
||||
"window",
|
||||
"plugin",
|
||||
"f3",
|
||||
"loop",
|
||||
NULL };
|
||||
|
||||
#define BUTTONMASK_BATTERY 0x00004000
|
||||
#define BUTTONMASK_BACKLIGHT 0x00008000
|
||||
#define BUTTONMASK_FASTFORWARD 0x04000000
|
||||
#define BUTTONMASK_TRACKMUTE 0x00040000
|
||||
#define BUTTONMASK_TRACKSOLO 0x00800000
|
||||
#define BUTTONMASK_TRACKLEFT 0x80000000
|
||||
#define BUTTONMASK_RECORD 0x02000000
|
||||
#define BUTTONMASK_SHIFT 0x20000000
|
||||
#define BUTTONMASK_PUNCH 0x00800000
|
||||
#define BUTTONMASK_TRACKRIGHT 0x00020000
|
||||
#define BUTTONMASK_REWIND 0x01000000
|
||||
#define BUTTONMASK_STOP 0x10000000
|
||||
#define BUTTONMASK_LOOP 0x00010000
|
||||
#define BUTTONMASK_TRACKREC 0x00001000
|
||||
#define BUTTONMASK_PLAY 0x08000000
|
||||
#define BUTTONMASK_TOUCH1 0x00000008
|
||||
#define BUTTONMASK_TOUCH2 0x00000010
|
||||
#define BUTTONMASK_TOUCH3 0x00000020
|
||||
|
||||
#define BUTTONMASK_PRESS1 0x00000009
|
||||
#define BUTTONMASK_PRESS2 0x00008010
|
||||
#define BUTTONMASK_PRESS3 0x00002020
|
||||
|
||||
// last 3 bytes are the slider position
|
||||
// 40 is the actual slider moving, the most sig bits, and 3 lsb
|
||||
|
||||
#define BUTTONMASK_FLIP 0x40000000
|
||||
#define BUTTONMASK_F1 0x00100000
|
||||
#define BUTTONMASK_F2 0x00400000
|
||||
#define BUTTONMASK_F3 0x00200000
|
||||
#define BUTTONMASK_F4 0x00080000
|
||||
#define BUTTONMASK_PAN 0x00000200
|
||||
#define BUTTONMASK_SEND 0x00000800
|
||||
#define BUTTONMASK_EQ 0x00004000
|
||||
#define BUTTONMASK_PLUGIN 0x00000400
|
||||
#define BUTTONMASK_AUTO 0x00000100
|
||||
|
||||
|
||||
// #define BUTTONMASK_FOOTSWITCH FIXME
|
||||
|
||||
// Lookup. name. midi out. midi in.
|
||||
|
||||
struct buttonmap_t {
|
||||
u32 mask;
|
||||
short midi_in;
|
||||
short midi_out;
|
||||
char *name;
|
||||
// void (*function) (buttonmap_t *);
|
||||
void (*function) (void);
|
||||
};
|
||||
|
||||
|
|
@ -0,0 +1,279 @@
|
|||
/* This was an attempt - ultimately proved pointless - at making a full fledged sysfs interface to the alphatrack */
|
||||
/* won't even compile at present */
|
||||
|
||||
char *alphatrack_sys_margs;
|
||||
spinlock_t alphatrack_sys_margs_lock;
|
||||
|
||||
struct alphatrack_attr {
|
||||
struct attribute attr;
|
||||
ssize_t (*show)(struct device *, char *);
|
||||
ssize_t (*store)(struct device *, const char *, size_t);
|
||||
};
|
||||
|
||||
#define ALPHATRACK_ATTR(name, mode, show, store) \
|
||||
static struct alphatrack_attr alphatrack_attr_##name = __ATTR(name, mode, show, store)
|
||||
|
||||
/* now a great deal of callback code generation */
|
||||
|
||||
// FOREACH_LIGHT(show_set_light)
|
||||
// FOREACH_BUTTON(show_set_button)
|
||||
|
||||
show_set_light(LIGHT_RECORD); show_set_light(LIGHT_EQ); show_set_light(LIGHT_OUT);
|
||||
show_set_light(LIGHT_F2); show_set_light(LIGHT_SEND); show_set_light(LIGHT_IN);
|
||||
show_set_light(LIGHT_F1); show_set_light(LIGHT_PAN); show_set_light(LIGHT_UNDEF1);
|
||||
show_set_light(LIGHT_UNDEF2); show_set_light(LIGHT_SHIFT); show_set_light(LIGHT_TRACKMUTE);
|
||||
show_set_light(LIGHT_TRACKSOLO); show_set_light(LIGHT_TRACKREC); show_set_light(LIGHT_READ);
|
||||
show_set_light(LIGHT_WRITE); show_set_light(LIGHT_ANYSOLO); show_set_light(LIGHT_AUTO);
|
||||
show_set_light(LIGHT_F4); show_set_light(LIGHT_RECORD); show_set_light(LIGHT_WINDOW);
|
||||
show_set_light(LIGHT_PLUGIN); show_set_light(LIGHT_F3); show_set_light(LIGHT_LOOP);
|
||||
|
||||
show_set_opt(enable); show_set_opt(offline); show_set_opt(compress_fader); show_set_opt(dump_state);
|
||||
show_set_int(fader); show_set_int(event);
|
||||
|
||||
|
||||
static ssize_t show_lights(struct device *dev, struct device_attribute *attr, char *buf)
|
||||
{
|
||||
struct usb_interface *intf = to_usb_interface(dev);
|
||||
struct usb_alphatrack *t = usb_get_intfdata(intf);
|
||||
return sprintf(buf, "%d\n", t->lights);
|
||||
}
|
||||
|
||||
static ssize_t set_lights(struct device *dev, struct device_attribute *attr, const char *buf, size_t count)
|
||||
{
|
||||
struct usb_interface *intf = to_usb_interface(dev);
|
||||
struct usb_alphatrack *t = usb_get_intfdata(intf);
|
||||
int temp = simple_strtoul(buf, NULL, 10);
|
||||
t->lights = temp;
|
||||
return count;
|
||||
}
|
||||
|
||||
static DEVICE_ATTR(value, S_IWUGO | S_IRUGO, show_lights, set_lights);
|
||||
|
||||
|
||||
ALPHATRACK_ATTR(LightRecord, 0200, NULL, LightRecord_store);
|
||||
|
||||
static struct attribute *alphatrack_attrs[] = {
|
||||
&alphatrack_attr_LightRecord.attr,
|
||||
NULL,
|
||||
};
|
||||
|
||||
static ssize_t alphatrack_attr_show(struct kobject *kobj, struct attribute *attr,
|
||||
char *buf)
|
||||
{
|
||||
struct device *sdp = container_of(kobj, struct device, kobj);
|
||||
struct alphatrack_attr *a = container_of(attr, struct alphatrack_attr, attr);
|
||||
return a->show ? a->show(sdp, buf) : 0;
|
||||
}
|
||||
|
||||
static ssize_t alphatrack_attr_store(struct kobject *kobj, struct attribute *attr,
|
||||
const char *buf, size_t len)
|
||||
{
|
||||
struct device *sdp = container_of(kobj, struct device, kobj);
|
||||
struct alphatrack_attr *a = container_of(attr, struct alphatrack_attr, attr);
|
||||
return a->store ? a->store(sdp, buf, len) : len;
|
||||
}
|
||||
|
||||
static struct sysfs_ops alphatrack_attr_ops = {
|
||||
.show = alphatrack_attr_show,
|
||||
.store = alphatrack_attr_store,
|
||||
};
|
||||
|
||||
static struct kobj_type alphatrack_ktype = {
|
||||
.default_attrs = alphatrack_attrs,
|
||||
.sysfs_ops = &alphatrack_attr_ops,
|
||||
};
|
||||
|
||||
static struct kset alphatrack_kset = {
|
||||
.subsys = &fs_subsys,
|
||||
.kobj = {.name = "alphatrack"},
|
||||
.ktype = &alphatrack_ktype,
|
||||
};
|
||||
|
||||
|
||||
static struct attribute *lights_attrs[] = {
|
||||
&tune_attr_demote_secs.attr,
|
||||
NULL,
|
||||
};
|
||||
|
||||
|
||||
static struct attribute_group leds_group = {
|
||||
.name = "leds",
|
||||
.attrs = lights_attrs,
|
||||
};
|
||||
|
||||
static struct attribute_group faders_group = {
|
||||
.name = "faders",
|
||||
.attrs = faders_attrs,
|
||||
};
|
||||
|
||||
static struct attribute_group lcds_group = {
|
||||
.name = "lcds",
|
||||
.attrs = lcds_attrs,
|
||||
};
|
||||
|
||||
static struct attribute_group wheels_group = {
|
||||
.name = "wheels",
|
||||
.attrs = wheels_attrs,
|
||||
};
|
||||
|
||||
static struct attribute_group touchsurfaces_group = {
|
||||
.name = "touchsurfaces",
|
||||
.attrs = touchsurfaces_attrs,
|
||||
};
|
||||
|
||||
static struct attribute_group buttons_group = {
|
||||
.name = "buttons",
|
||||
.attrs = buttons_attrs,
|
||||
};
|
||||
|
||||
|
||||
int alphatrack_sys_fs_add(struct device *sdp)
|
||||
{
|
||||
int error;
|
||||
|
||||
sdp->kobj.kset = &alphatrack_kset;
|
||||
sdp->kobj.ktype = &alphatrack_ktype;
|
||||
|
||||
// error = kobject_set_name(&sdp->kobj, "%s", sdp->sd_table_name);
|
||||
error = kobject_set_name(&sdp->kobj, "%s", "alphatrack");
|
||||
if (error)
|
||||
goto fail;
|
||||
|
||||
error = kobject_register(&sdp->kobj);
|
||||
if (error)
|
||||
goto fail;
|
||||
|
||||
error = sysfs_create_group(&sdp->kobj, &lcds_group);
|
||||
if (error)
|
||||
goto fail_reg;
|
||||
|
||||
error = sysfs_create_group(&sdp->kobj, &leds_group);
|
||||
if (error)
|
||||
goto fail_leds;
|
||||
|
||||
error = sysfs_create_group(&sdp->kobj, &wheels_group);
|
||||
if (error)
|
||||
goto fail_wheels;
|
||||
|
||||
error = sysfs_create_group(&sdp->kobj, &faders_group);
|
||||
if (error)
|
||||
goto fail_lcds;
|
||||
|
||||
error = sysfs_create_group(&sdp->kobj, &buttons_group);
|
||||
if (error)
|
||||
goto fail_faders;
|
||||
|
||||
error = sysfs_create_group(&sdp->kobj, &touchsurfaces_group);
|
||||
if (error)
|
||||
goto fail_buttons;
|
||||
|
||||
return 0;
|
||||
|
||||
|
||||
fail_buttons:
|
||||
sysfs_remove_group(&sdp->kobj, &buttons_group);
|
||||
fail_faders:
|
||||
sysfs_remove_group(&sdp->kobj, &faders_group);
|
||||
fail_wheels:
|
||||
sysfs_remove_group(&sdp->kobj, &wheels_group);
|
||||
fail_lcds:
|
||||
sysfs_remove_group(&sdp->kobj, &lcds_group);
|
||||
fail_leds:
|
||||
sysfs_remove_group(&sdp->kobj, &leds_group);
|
||||
|
||||
|
||||
|
||||
fail_reg:
|
||||
kobject_unregister(&sdp->kobj);
|
||||
fail:
|
||||
fs_err(sdp, "error %d adding sysfs files", error);
|
||||
return error;
|
||||
}
|
||||
|
||||
// int sysfs_create_link(struct kobject *kobj,
|
||||
// struct kobject *target,
|
||||
// char *name);
|
||||
|
||||
void alphatrack_sys_fs_del(struct device *sdp)
|
||||
{
|
||||
sysfs_remove_group(&sdp->kobj, &touchsurfaces_group);
|
||||
sysfs_remove_group(&sdp->kobj, &buttons_group);
|
||||
sysfs_remove_group(&sdp->kobj, &faders_group);
|
||||
sysfs_remove_group(&sdp->kobj, &lcds_group);
|
||||
sysfs_remove_group(&sdp->kobj, &wheels_group);
|
||||
sysfs_remove_group(&sdp->kobj, &leds_group)
|
||||
//void sysfs_remove_link(struct kobject *kobj, char *name);
|
||||
kobject_unregister(&sdp->kobj);
|
||||
}
|
||||
|
||||
int alphatrack_sys_init(void)
|
||||
{
|
||||
alphatrack_sys_margs = NULL;
|
||||
spin_lock_init(&alphatrack_sys_margs_lock);
|
||||
return kset_register(&alphatrack_kset);
|
||||
}
|
||||
|
||||
void alphatrack_sys_uninit(void)
|
||||
{
|
||||
kfree(alphatrack_sys_margs);
|
||||
kset_unregister(&alphatrack_kset);
|
||||
}
|
||||
|
||||
|
||||
//decl_subsys(char *name, struct kobj_type *type,
|
||||
// struct kset_hotplug_ops *hotplug_ops);
|
||||
|
||||
/* End of all the crazy sysfs stuff */
|
||||
|
||||
#define SYSEX_INQUIRE signed char *SYSEX_INQUIRE[] = { 0xf0,0x7e,0x00,0x06,0x01,0x17 };
|
||||
|
||||
#define COMMAND(NAME,CONT_NAME) { BUTTONMASK_##NAME, ((0x90 << 8) | CONT_NAME), ((0x90 << 8) | CONT_NAME), #NAME, NAME ## _set }
|
||||
#define ROTARY(NAME,CONT_NAME) { FADER_##NAME, ((0xb0 << 8) | CONT_NAME), ((0xb0 << 8) | CONT_NAME), #NAME, NAME ## _set }
|
||||
#define SPOSITION(NAME,CONT_NAME) { BUTTON_##NAME ((0xe9 << 8) | CONT_NAME), #NAME, NAME ## _set }
|
||||
#define ENDCOMMAND { 0,NULL,0,NULL,NULL}
|
||||
|
||||
/* Now that we've generated all our callbacks */
|
||||
|
||||
static struct buttonmap_t buttonmap[] =
|
||||
{
|
||||
COMMAND (REWIND,0x5b),
|
||||
COMMAND (FASTFORWARD,0x5c),
|
||||
COMMAND (STOP,0x5d),
|
||||
COMMAND (PLAY,0x5e),
|
||||
COMMAND (RECORD,0x5f),
|
||||
COMMAND (SHIFT,0x46),
|
||||
COMMAND (TRACKLEFT,0x57),
|
||||
COMMAND (TRACKRIGHT,0x58),
|
||||
COMMAND (LOOP,0x56),
|
||||
COMMAND (FLIP,0x32),
|
||||
COMMAND (MUTE,0x10),
|
||||
COMMAND (F1,0x36),
|
||||
COMMAND (F2,0x37),
|
||||
COMMAND (F3,0x38),
|
||||
COMMAND (F4,0x39),
|
||||
COMMAND (SOLO,0x08),
|
||||
COMMAND (ANY,0x73),
|
||||
COMMAND (PAN,0x2a),
|
||||
COMMAND (SEND,0x29),
|
||||
COMMAND (EQ,0x2c),
|
||||
COMMAND (PLUGIN,0x2b),
|
||||
COMMAND (AUTO,0x4a),
|
||||
COMMAND (TRACKREC,0x00),
|
||||
COMMAND (FOOTSWITCH1,0x67),
|
||||
COMMAND (KNOBTOUCH1,0x78),
|
||||
COMMAND (KNOBPUSH1,0x20),
|
||||
ROTARY (KNOBTURN1,0x10),
|
||||
COMMAND (KNOBTOUCH2,0x79),
|
||||
COMMAND (KNOBPUSH2,0x21),
|
||||
ROTARY (KNOBTURN2,0x11),
|
||||
COMMAND (KNOBTOUCH3,0x7a),
|
||||
COMMAND (KNOBPUSH3,0x22),
|
||||
ROTARY (KNOBTURN3,0x12),
|
||||
COMMAND (FADERTOUCH1,0x68),
|
||||
COMMAND (STRIPTOUCH1,0x74),
|
||||
COMMAND (STRIPTOUCH2,0x6b),
|
||||
SPOSITION (STRIPPOS1,0x00),
|
||||
ENDCOMMAND
|
||||
};
|
||||
|
||||
|
||||
|
|
@ -0,0 +1,63 @@
|
|||
/* USB defines for older kernels */
|
||||
|
||||
#if LINUX_VERSION_CODE < KERNEL_VERSION(2, 6, 19)
|
||||
|
||||
/**
|
||||
* usb_endpoint_dir_out - check if the endpoint has OUT direction
|
||||
* @epd: endpoint to be checked
|
||||
*
|
||||
* Returns true if the endpoint is of type OUT, otherwise it returns false.
|
||||
*/
|
||||
|
||||
static inline int usb_endpoint_dir_out(const struct usb_endpoint_descriptor *epd)
|
||||
{
|
||||
return ((epd->bEndpointAddress & USB_ENDPOINT_DIR_MASK) == USB_DIR_OUT);
|
||||
}
|
||||
|
||||
static inline int usb_endpoint_dir_in(const struct usb_endpoint_descriptor *epd)
|
||||
{
|
||||
return ((epd->bEndpointAddress & USB_ENDPOINT_DIR_MASK) == USB_DIR_IN);
|
||||
}
|
||||
|
||||
|
||||
/**
|
||||
* usb_endpoint_xfer_int - check if the endpoint has interrupt transfer type
|
||||
* @epd: endpoint to be checked
|
||||
*
|
||||
* Returns true if the endpoint is of type interrupt, otherwise it returns
|
||||
* false.
|
||||
*/
|
||||
static inline int usb_endpoint_xfer_int(const struct usb_endpoint_descriptor *epd)
|
||||
{
|
||||
return ((epd->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK) ==
|
||||
USB_ENDPOINT_XFER_INT);
|
||||
}
|
||||
|
||||
|
||||
/**
|
||||
* usb_endpoint_is_int_in - check if the endpoint is interrupt IN
|
||||
* @epd: endpoint to be checked
|
||||
*
|
||||
* Returns true if the endpoint has interrupt transfer type and IN direction,
|
||||
* otherwise it returns false.
|
||||
*/
|
||||
|
||||
static inline int usb_endpoint_is_int_in(const struct usb_endpoint_descriptor *epd)
|
||||
{
|
||||
return (usb_endpoint_xfer_int(epd) && usb_endpoint_dir_in(epd));
|
||||
}
|
||||
|
||||
/**
|
||||
* usb_endpoint_is_int_out - check if the endpoint is interrupt OUT
|
||||
* @epd: endpoint to be checked
|
||||
*
|
||||
* Returns true if the endpoint has interrupt transfer type and OUT direction,
|
||||
* otherwise it returns false.
|
||||
*/
|
||||
|
||||
static inline int usb_endpoint_is_int_out(const struct usb_endpoint_descriptor *epd)
|
||||
{
|
||||
return (usb_endpoint_xfer_int(epd) && usb_endpoint_dir_out(epd));
|
||||
}
|
||||
|
||||
#endif /* older kernel versions */
|
||||
|
|
@ -0,0 +1,100 @@
|
|||
/* If you are going to abuse the preprocessor, why not ABUSE the preprocessor?
|
||||
I stuck this header in a separate file so I don't have to look at it */
|
||||
|
||||
// FIXME Need locking or atomic ops
|
||||
|
||||
#define show_set_mbit(dname,value,bit) \
|
||||
static ssize_t show_##value(struct device *dev, struct device_attribute *attr, char *buf) \
|
||||
{ \
|
||||
struct usb_interface *intf = to_usb_interface(dev); \
|
||||
struct usb_##dname *t = usb_get_intfdata(intf); \
|
||||
int temp = (1 && (t->value & (1 << bit))); \
|
||||
return sprintf(buf, "%d\n", temp); \
|
||||
} \
|
||||
static ssize_t set_##value(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) \
|
||||
{ \
|
||||
struct usb_interface *intf = to_usb_interface(dev); \
|
||||
struct usb_##dname *t = usb_get_intfdata(intf); \
|
||||
int temp = simple_strtoul(buf, NULL, 10); \
|
||||
if(temp > 0) { long b = 1 << bit; t->value |= b; } \
|
||||
else { long b = ~(1 << bit); t->value &= b ; \
|
||||
return count; \
|
||||
} \
|
||||
static DEVICE_ATTR(value, S_IWUGO | S_IRUGO, show_##value, set_##value);
|
||||
|
||||
#define show_set_ebit(dname,enumname,value,bit) \
|
||||
static ssize_t show_##bit(struct device *dev, struct device_attribute *attr, char *buf) \
|
||||
{ \
|
||||
struct usb_interface *intf = to_usb_interface(dev); \
|
||||
struct usb_##dname *t = usb_get_intfdata(intf); \
|
||||
enum enumname l = bit; \
|
||||
int temp = t->value & (1 << l); \
|
||||
return sprintf(buf, "%d\n", temp); \
|
||||
} \
|
||||
static ssize_t set_##bit(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) \
|
||||
{ \
|
||||
struct usb_interface *intf = to_usb_interface(dev); \
|
||||
struct usb_##dname *t = usb_get_intfdata(intf); \
|
||||
int temp = simple_strtoul(buf, NULL, 10); \
|
||||
enum enumname l = bit;\
|
||||
long b = 1 << l; \
|
||||
if(temp > 0) { t->value |= b; } \
|
||||
else { t->value &= ~b ; \
|
||||
return count; \
|
||||
} \
|
||||
static DEVICE_ATTR(value, S_IWUGO | S_IRUGO, show_##value, set_##value);
|
||||
|
||||
// FIXME FOR CORRECTLY SETTING HEX from a string
|
||||
#define show_set_mcmd(dname,value) \
|
||||
static ssize_t show_##value(struct device *dev, struct device_attribute *attr, char *buf) \
|
||||
{ \
|
||||
struct usb_interface *intf = to_usb_interface(dev); \
|
||||
struct usb_##dname *t = usb_get_intfdata(intf); \
|
||||
int count = 0;\
|
||||
int i; \
|
||||
for (i = 0,i<sizeof(dname); i++) count += snprintf(buf, "%02x",t->dname[i]); \
|
||||
return(count);\
|
||||
} \
|
||||
static ssize_t set_##value(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) \
|
||||
{ \
|
||||
struct usb_interface *intf = to_usb_interface(dev); \
|
||||
struct usb_##dname *t = usb_get_intfdata(intf); \
|
||||
int temp = simple_strtoul(buf, NULL, 10); \
|
||||
t->value = temp; \
|
||||
return count; \
|
||||
} \
|
||||
static DEVICE_ATTR(value, S_IWUGO | S_IRUGO, show_##value, set_##value);
|
||||
|
||||
#define show_set_mint(dname,value) \
|
||||
static ssize_t show_##value(struct device *dev, struct device_attribute *attr, char *buf) \
|
||||
{ \
|
||||
struct usb_interface *intf = to_usb_interface(dev); \
|
||||
struct usb_##dname *t = usb_get_intfdata(intf); \
|
||||
return sprintf(buf, "%d\n", t->value); \
|
||||
} \
|
||||
static ssize_t set_##value(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) \
|
||||
{ \
|
||||
struct usb_interface *intf = to_usb_interface(dev); \
|
||||
struct usb_##dname *t = usb_get_intfdata(intf); \
|
||||
int temp = simple_strtoul(buf, NULL, 10); \
|
||||
t->value = temp; \
|
||||
return count; \
|
||||
} \
|
||||
static DEVICE_ATTR(value, S_IWUGO | S_IRUGO, show_##value, set_##value);
|
||||
|
||||
#define show_set_mchar(dname,value) \
|
||||
static ssize_t show_##value(struct device *dev, struct device_attribute *attr, char *buf) \
|
||||
{ \
|
||||
struct usb_interface *intf = to_usb_interface(dev); \
|
||||
struct usb_##dname *t = usb_get_intfdata(intf); \
|
||||
return sprintf(buf, "%c\n", t->value); \
|
||||
} \
|
||||
static ssize_t set_##value(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) \
|
||||
{ \
|
||||
struct usb_interface *intf = to_usb_interface(dev); \
|
||||
struct usb_##dname *t = usb_get_intfdata(intf); \
|
||||
int temp = simple_strtoul(buf, NULL, 10); \
|
||||
t->value = temp; \
|
||||
return count; \
|
||||
} \
|
||||
static DEVICE_ATTR(value, S_IWUGO | S_IRUGO, show_##value, set_##value);
|
||||
File diff suppressed because it is too large
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Reference in New Issue