/*
comedi/drivers/vmk80xx.c
- Velleman USB Interface Board Kernel-Space Driver
+ Velleman USB Board Low-Level Driver
Copyright (C) 2009 Manuel Gebele <forensixs@gmx.de>, Germany
*/
/*
Driver: vmk80xx
-Description: Velleman USB Interface Board Kernel-Space Driver
-Devices: K8055, K8061 (in development)
+Description: Velleman USB Board Low-Level Driver
+Devices: K8055/K8061 aka VM110/VM140
Author: Manuel Gebele <forensixs@gmx.de>
-Updated: Tue, 21 Apr 2009 19:40:55 +0200
+Updated: Sun, 10 May 2009 11:14:59 +0200
Status: works
+
+Supports:
+ - analog input
+ - analog output
+ - digital input
+ - digital output
+ - counter
+ - pwm
+*/
+/*
+Changelog:
+
+0.8.81 -3- code completely rewritten (adjust driver logic)
+0.8.81 -2- full support for K8061
+0.8.81 -1- fix some mistaken among others the number of
+ supported boards and I/O handling
+
+0.7.76 -4- renamed to vmk80xx
+0.7.76 -3- detect K8061 (only theoretically supported)
+0.7.76 -2- code completely rewritten (adjust driver logic)
+0.7.76 -1- support for digital and counter subdevice
*/
#include <linux/kernel.h>
#include <linux/slab.h>
#include <linux/poll.h>
#include <linux/usb.h>
-#include <asm/uaccess.h>
-
-#include "../comedidev.h" /* comedi definitions */
-
-/* ------------------------------------------------------------------------ */
-#define VMK80XX_MODULE_DESC "Velleman USB Interface Board Kernel-Space Driver"
-#define VMK80XX_MODULE_DEVICE "Velleman K8055/K8061 USB Interface Board"
-#define VMK80XX_MODULE_AUTHOR "Copyright (C) 2009 Manuel Gebele, Germany"
-#define VMK80XX_MODULE_LICENSE "GPL"
-#define VMK80XX_MODULE_VERSION "0.7.76"
-
-/* Module device ID's */
-static struct usb_device_id vm_id_table[] = {
- /* k8055 */
- { USB_DEVICE(0x10cf, 0x5500 + 0x00) }, /* @ddr. 0 */
- { USB_DEVICE(0x10cf, 0x5500 + 0x01) }, /* @ddr. 1 */
- { USB_DEVICE(0x10cf, 0x5500 + 0x02) }, /* @ddr. 2 */
- { USB_DEVICE(0x10cf, 0x5500 + 0x03) }, /* @ddr. 3 */
- /* k8061 */
- { USB_DEVICE(0x10cf, 0x8061 + 0x00) }, /* @ddr. 0 */
- { USB_DEVICE(0x10cf, 0x8061 + 0x01) }, /* @ddr. 1 */
- { USB_DEVICE(0x10cf, 0x8061 + 0x02) }, /* @ddr. 2 */
- { USB_DEVICE(0x10cf, 0x8061 + 0x03) }, /* @ddr. 3 */
- { USB_DEVICE(0x10cf, 0x8061 + 0x04) }, /* @ddr. 4 */
- { USB_DEVICE(0x10cf, 0x8061 + 0x05) }, /* @ddr. 5 */
- { USB_DEVICE(0x10cf, 0x8061 + 0x06) }, /* @ddr. 6 */
- { USB_DEVICE(0x10cf, 0x8061 + 0x07) }, /* @ddr. 7 */
+#include <linux/uaccess.h>
+
+#include "../comedidev.h"
+
+MODULE_AUTHOR("Manuel Gebele <forensixs@gmx.de>");
+MODULE_DESCRIPTION("Velleman USB Board Low-Level Driver");
+MODULE_SUPPORTED_DEVICE("K8055/K8061 aka VM110/VM140");
+MODULE_VERSION("0.8.01");
+MODULE_LICENSE("GPL");
+
+enum {
+ DEVICE_VMK8055,
+ DEVICE_VMK8061
+};
+
+static struct usb_device_id vmk80xx_id_table[] = {
+ { USB_DEVICE(0x10cf, 0x5500), .driver_info = DEVICE_VMK8055 },
+ { USB_DEVICE(0x10cf, 0x5501), .driver_info = DEVICE_VMK8055 },
+ { USB_DEVICE(0x10cf, 0x5502), .driver_info = DEVICE_VMK8055 },
+ { USB_DEVICE(0x10cf, 0x5503), .driver_info = DEVICE_VMK8055 },
+ { USB_DEVICE(0x10cf, 0x8061), .driver_info = DEVICE_VMK8061 },
+ { USB_DEVICE(0x10cf, 0x8062), .driver_info = DEVICE_VMK8061 },
+ { USB_DEVICE(0x10cf, 0x8063), .driver_info = DEVICE_VMK8061 },
+ { USB_DEVICE(0x10cf, 0x8064), .driver_info = DEVICE_VMK8061 },
+ { USB_DEVICE(0x10cf, 0x8065), .driver_info = DEVICE_VMK8061 },
+ { USB_DEVICE(0x10cf, 0x8066), .driver_info = DEVICE_VMK8061 },
+ { USB_DEVICE(0x10cf, 0x8067), .driver_info = DEVICE_VMK8061 },
+ { USB_DEVICE(0x10cf, 0x8068), .driver_info = DEVICE_VMK8061 },
{ } /* terminating entry */
};
-MODULE_DEVICE_TABLE(usb, vm_id_table);
-MODULE_AUTHOR(VMK80XX_MODULE_AUTHOR);
-MODULE_DESCRIPTION(VMK80XX_MODULE_DESC);
-MODULE_SUPPORTED_DEVICE(VMK80XX_MODULE_DEVICE);
-MODULE_VERSION(VMK80XX_MODULE_VERSION);
-MODULE_LICENSE(VMK80XX_MODULE_LICENSE);
-/* ------------------------------------------------------------------------ */
+MODULE_DEVICE_TABLE(usb, vmk80xx_id_table);
+
+#define VMK8055_DI_REG 0x00
+#define VMK8055_DO_REG 0x01
+#define VMK8055_AO1_REG 0x02
+#define VMK8055_AO2_REG 0x03
+#define VMK8055_AI1_REG 0x02
+#define VMK8055_AI2_REG 0x03
+#define VMK8055_CNT1_REG 0x04
+#define VMK8055_CNT2_REG 0x06
+
+#define VMK8061_CH_REG 0x01
+#define VMK8061_DI_REG 0x01
+#define VMK8061_DO_REG 0x01
+#define VMK8061_PWM_REG1 0x01
+#define VMK8061_PWM_REG2 0x02
+#define VMK8061_CNT_REG 0x02
+#define VMK8061_AO_REG 0x02
+#define VMK8061_AI_REG1 0x02
+#define VMK8061_AI_REG2 0x03
+
+#define VMK8055_CMD_RST 0x00
+#define VMK8055_CMD_DEB1_TIME 0x01
+#define VMK8055_CMD_DEB2_TIME 0x02
+#define VMK8055_CMD_RST_CNT1 0x03
+#define VMK8055_CMD_RST_CNT2 0x04
+#define VMK8055_CMD_WRT_AD 0x05
+
+#define VMK8061_CMD_RD_AI 0x00
+#define VMK8061_CMR_RD_ALL_AI 0x01 /* !non-active! */
+#define VMK8061_CMD_SET_AO 0x02
+#define VMK8061_CMD_SET_ALL_AO 0x03 /* !non-active! */
+#define VMK8061_CMD_OUT_PWM 0x04
+#define VMK8061_CMD_RD_DI 0x05
+#define VMK8061_CMD_DO 0x06 /* !non-active! */
+#define VMK8061_CMD_CLR_DO 0x07
+#define VMK8061_CMD_SET_DO 0x08
+#define VMK8061_CMD_RD_CNT 0x09 /* TODO: completely pointless? */
+#define VMK8061_CMD_RST_CNT 0x0a /* TODO: completely pointless? */
+#define VMK8061_CMD_RD_VERSION 0x0b /* internal usage */
+#define VMK8061_CMD_RD_JMP_STAT 0x0c /* TODO: not implemented yet */
+#define VMK8061_CMD_RD_PWR_STAT 0x0d /* internal usage */
+#define VMK8061_CMD_RD_DO 0x0e
+#define VMK8061_CMD_RD_AO 0x0f
+#define VMK8061_CMD_RD_PWM 0x10
+
+#define VMK80XX_MAX_BOARDS COMEDI_NUM_BOARD_MINORS
+
+#define TRANS_OUT_BUSY 1
+#define TRANS_IN_BUSY 2
+#define TRANS_IN_RUNNING 3
+
+#define IC3_VERSION (1 << 0)
+#define IC6_VERSION (1 << 1)
+
+#define URB_RCV_FLAG (1 << 0)
+#define URB_SND_FLAG (1 << 1)
#define CONFIG_VMK80XX_DEBUG
+#undef CONFIG_VMK80XX_DEBUG
-//#undef CONFIG_COMEDI_DEBUG /* Uncommend this line to disable comedi debug */
-#undef CONFIG_VMK80XX_DEBUG /* Commend this line to enable vmk80xx debug */
+#ifdef CONFIG_VMK80XX_DEBUG
+ static int dbgvm = 1;
+#else
+ static int dbgvm;
+#endif
#ifdef CONFIG_COMEDI_DEBUG
- static int cm_dbg = 1;
-#else /* !CONFIG_COMEDI_DEBUG */
- static int cm_dbg = 0;
-#endif /* !CONFIG_COMEDI_DEBUG */
+ static int dbgcm = 1;
+#else
+ static int dbgcm;
+#endif
+
+#define dbgvm(fmt, arg...) \
+do { \
+ if (dbgvm) \
+ printk(KERN_DEBUG fmt, ##arg); \
+} while (0)
+
+#define dbgcm(fmt, arg...) \
+do { \
+ if (dbgcm) \
+ printk(KERN_DEBUG fmt, ##arg); \
+} while (0)
+
+enum vmk80xx_model {
+ VMK8055_MODEL,
+ VMK8061_MODEL
+};
-#ifdef CONFIG_VMK80XX_DEBUG
- static int vm_dbg = 1;
-#else /* !CONFIG_VMK80XX_DEBUG */
- static int vm_dbg = 0;
-#endif /* !CONFIG_VMK80XX_DEBUG */
-
-/* Define our own debug macros */
-#define DBGCM(fmt, arg...) do { if (cm_dbg) printk(fmt, ##arg); } while (0)
-#define DBGVM(fmt, arg...) do { if (vm_dbg) printk(fmt, ##arg); } while (0)
-
-/* Velleman K8055 specific stuff */
-#define VMK8055_DI 0 /* digital input offset */
-#define VMK8055_DO 1 /* digital output offset */
-#define VMK8055_AO1 2 /* analog output channel 1 offset */
-#define VMK8055_AO2 3 /* analog output channel 2 offset */
-#define VMK8055_CNT1 4 /* counter 1 offset */
-#define VMK8055_CNT2 6 /* counter 2 offset */
-#define VMK8055_CMD_RST 0x00 /* reset device registers */
-#define VMK8055_CMD_DEB1 0x01 /* debounce time for pulse counter 1 */
-#define VMK8055_CMD_DEB2 0x02 /* debounce time for pulse counter 2 */
-#define VMK8055_CMD_RST_CNT1 0x03 /* reset pulse counter 1 */
-#define VMK8055_CMD_RST_CNT2 0x04 /* reset pulse counter 2 */
-#define VMK8055_CMD_AD 0x05 /* write to analog or digital channel */
-#define VMK8055_EP_OUT 0x01 /* out endpoint address */
-#define VMK8055_EP_IN 0x81 /* in endpoint address */
-#define VMK8055_EP_SIZE 8 /* endpoint max packet size */
-#define VMK8055_EP_INTERVAL 20 /* general conversion time per command */
-#define VMK8055_MAX_BOARDS 16
-
-/* Structure to hold all of our device specific stuff */
-struct vmk80xx_usb {
- struct usb_interface *intf;
- struct semaphore limit_sem;
- wait_queue_head_t read_wait;
- wait_queue_head_t write_wait;
- size_t irq_out_endpoint_size;
- __u8 irq_out_endpoint;
- int irq_out_interval;
- unsigned char *irq_out_buf;
- struct urb *irq_out_urb;
- int irq_out_busy;
- size_t irq_in_endpoint_size;
- __u8 irq_in_endpoint;
- int irq_in_interval;
- unsigned char *irq_in_buf;
- struct urb *irq_in_urb;
- int irq_in_busy;
- int irq_in_running;
- int probed;
- int attached;
- int id;
+struct firmware_version {
+ unsigned char ic3_vers[32]; /* USB-Controller */
+ unsigned char ic6_vers[32]; /* CPU */
};
-static struct vmk80xx_usb vm_boards[VMK8055_MAX_BOARDS];
+static const struct comedi_lrange vmk8055_range = {
+ 1, { UNI_RANGE(5) }
+};
-/* ---------------------------------------------------------------------------
- * Abort active transfers and tidy up allocated resources.
---------------------------------------------------------------------------- */
-static void vm_abort_transfers(struct vmk80xx_usb *vm)
-{
- DBGVM("comedi#: vmk80xx: %s\n", __func__);
+static const struct comedi_lrange vmk8061_range = {
+ 2, { UNI_RANGE(5), UNI_RANGE(10) }
+};
- if (vm->irq_in_running) {
- vm->irq_in_running = 0;
- if (vm->intf)
- usb_kill_urb(vm->irq_in_urb);
- }
+struct vmk80xx_board {
+ const char *name;
+ enum vmk80xx_model model;
+ const struct comedi_lrange *range;
+ __u8 ai_chans;
+ __le16 ai_bits;
+ __u8 ao_chans;
+ __le16 ao_bits;
+ __u8 di_chans;
+ __le16 di_bits;
+ __u8 do_chans;
+ __le16 do_bits;
+ __u8 cnt_chans;
+ __le16 cnt_bits;
+ __u8 pwm_chans;
+ __le16 pwm_bits;
+};
- if (vm->irq_out_busy && vm->intf)
- usb_kill_urb(vm->irq_out_urb);
-}
+enum {
+ VMK80XX_SUBD_AI,
+ VMK80XX_SUBD_AO,
+ VMK80XX_SUBD_DI,
+ VMK80XX_SUBD_DO,
+ VMK80XX_SUBD_CNT,
+ VMK80XX_SUBD_PWM,
+};
-static void vm_delete(struct vmk80xx_usb *vm)
+struct vmk80xx_usb {
+ struct usb_device *udev;
+ struct usb_interface *intf;
+ struct usb_endpoint_descriptor *ep_rx;
+ struct usb_endpoint_descriptor *ep_tx;
+ struct usb_anchor rx_anchor;
+ struct usb_anchor tx_anchor;
+ struct vmk80xx_board board;
+ struct firmware_version fw;
+ struct semaphore limit_sem;
+ wait_queue_head_t read_wait;
+ wait_queue_head_t write_wait;
+ unsigned char *usb_rx_buf;
+ unsigned char *usb_tx_buf;
+ unsigned long flags;
+ int probed;
+ int attached;
+ int count;
+};
+
+static struct vmk80xx_usb vmb[VMK80XX_MAX_BOARDS];
+
+static DEFINE_MUTEX(glb_mutex);
+
+static void vmk80xx_tx_callback(struct urb *urb)
{
- DBGVM("comedi#: vmk80xx: %s\n", __func__);
+ struct vmk80xx_usb *dev = urb->context;
+ int stat = urb->status;
- vm_abort_transfers(vm);
+ dbgvm("vmk80xx: %s\n", __func__);
- /* Deallocate usb urbs and kernel buffers */
- if (vm->irq_in_urb)
- usb_free_urb(vm->irq_in_urb);
+ if (stat && !(stat == -ENOENT
+ || stat == -ECONNRESET
+ || stat == -ESHUTDOWN))
+ dbgcm("comedi#: vmk80xx: %s - nonzero urb status (%d)\n",
+ __func__, stat);
- if (vm->irq_out_urb);
- usb_free_urb(vm->irq_out_urb);
+ if (!test_bit(TRANS_OUT_BUSY, &dev->flags))
+ return;
- if (vm->irq_in_buf)
- kfree(vm->irq_in_buf);
+ clear_bit(TRANS_OUT_BUSY, &dev->flags);
- if (vm->irq_out_buf)
- kfree(vm->irq_out_buf);
+ wake_up_interruptible(&dev->write_wait);
}
-/* ---------------------------------------------------------------------------
- * Interrupt in and interrupt out callback for usb data transfer.
---------------------------------------------------------------------------- */
-static void vm_irq_in_callback(struct urb *urb)
+static void vmk80xx_rx_callback(struct urb *urb)
{
- struct vmk80xx_usb *vm = (struct vmk80xx_usb *)urb->context;
- int err;
+ struct vmk80xx_usb *dev = urb->context;
+ int stat = urb->status;
- DBGVM("comedi#: vmk80xx: %s\n", __func__);
+ dbgvm("vmk80xx: %s\n", __func__);
- switch (urb->status) {
- case 0: /* success */
+ switch (stat) {
+ case 0:
break;
case -ENOENT:
case -ECONNRESET:
case -ESHUTDOWN:
break;
default:
- DBGCM("comedi#: vmk80xx: %s - nonzero urb status (%d)\n",
- __func__, urb->status);
- goto resubmit; /* maybe we can recover */
+ dbgcm("comedi#: vmk80xx: %s - nonzero urb status (%d)\n",
+ __func__, stat);
+ goto resubmit;
}
goto exit;
resubmit:
- if (vm->irq_in_running && vm->intf) {
- err = usb_submit_urb(vm->irq_in_urb, GFP_ATOMIC);
- if (!err) goto exit;
- /* FALL THROUGH */
- DBGCM("comedi#: vmk80xx: %s - submit urb failed (err# %d)\n",
- __func__, err);
+ if (test_bit(TRANS_IN_RUNNING, &dev->flags) && dev->intf) {
+ usb_anchor_urb(urb, &dev->rx_anchor);
+
+ if (!usb_submit_urb(urb, GFP_KERNEL))
+ goto exit;
+
+ err("comedi#: vmk80xx: %s - submit urb failed\n", __func__);
+
+ usb_unanchor_urb(urb);
}
exit:
- vm->irq_in_busy = 0;
+ clear_bit(TRANS_IN_BUSY, &dev->flags);
- /* interrupt-in pipe is available again */
- wake_up_interruptible(&vm->read_wait);
+ wake_up_interruptible(&dev->read_wait);
}
-static void vm_irq_out_callback(struct urb *urb)
+static int vmk80xx_check_data_link(struct vmk80xx_usb *dev)
{
- struct vmk80xx_usb *vm;
+ unsigned int tx_pipe, rx_pipe;
+ unsigned char tx[1], rx[2];
+
+ dbgvm("vmk80xx: %s\n", __func__);
- DBGVM("comedi#: vmk80xx: %s\n", __func__);
+ tx_pipe = usb_sndbulkpipe(dev->udev, 0x01);
+ rx_pipe = usb_rcvbulkpipe(dev->udev, 0x81);
- /* sync/async unlink (hardware going away) faults aren't errors */
- if (urb->status && !(urb->status == -ENOENT
- || urb->status == -ECONNRESET
- || urb->status == -ESHUTDOWN))
- DBGCM("comedi#: vmk80xx: %s - nonzero urb status (%d)\n",
- __func__, urb->status);
+ tx[0] = VMK8061_CMD_RD_PWR_STAT;
- vm = (struct vmk80xx_usb *)urb->context;
- vm->irq_out_busy = 0;
+ /* Check that IC6 (PIC16F871) is powered and
+ * running and the data link between IC3 and
+ * IC6 is working properly */
+ usb_bulk_msg(dev->udev, tx_pipe, tx, 1, NULL,
+ dev->ep_tx->bInterval);
+ usb_bulk_msg(dev->udev, rx_pipe, rx, 2, NULL,
+ HZ * 10);
- /* interrupt-out pipe is available again */
- wake_up_interruptible(&vm->write_wait);
+ return (int)rx[1];
}
-/* ---------------------------------------------------------------------------
- * Interface for digital/analog input/output and counter funcs (see below).
---------------------------------------------------------------------------- */
-static int vm_read(struct vmk80xx_usb *vm)
+static void vmk80xx_read_eeprom(struct vmk80xx_usb *dev, int flag)
{
- struct usb_device *udev;
- int retval = -ENODEV;
+ unsigned int tx_pipe, rx_pipe;
+ unsigned char tx[1], rx[64];
+ int cnt;
- DBGVM("comedi#: vmk80xx: %s\n", __func__);
+ dbgvm("vmk80xx: %s\n", __func__);
- /* Verify that the device wasn't un-plugged */
- if (!vm->intf) {
- DBGCM("comedi#: vmk80xx: %s - No dev or dev un-plugged\n",
- __func__);
- goto exit;
- }
+ tx_pipe = usb_sndbulkpipe(dev->udev, 0x01);
+ rx_pipe = usb_rcvbulkpipe(dev->udev, 0x81);
- if (vm->irq_in_busy) {
- retval = wait_event_interruptible(vm->read_wait,
- !vm->irq_in_busy);
- if (retval < 0) { /* we were interrupted by a signal */
- retval = -ERESTART;
- goto exit;
- }
+ tx[0] = VMK8061_CMD_RD_VERSION;
+
+ /* Read the firmware version info of IC3 and
+ * IC6 from the internal EEPROM of the IC */
+ usb_bulk_msg(dev->udev, tx_pipe, tx, 1, NULL,
+ dev->ep_tx->bInterval);
+ usb_bulk_msg(dev->udev, rx_pipe, rx, 64, &cnt,
+ HZ * 10);
+
+ rx[cnt] = '\0';
+
+ if (flag & IC3_VERSION)
+ strncpy(dev->fw.ic3_vers, rx + 1, 24);
+ else /* IC6_VERSION */
+ strncpy(dev->fw.ic6_vers, rx + 25, 24);
+}
+
+static int vmk80xx_reset_device(struct vmk80xx_usb *dev)
+{
+ struct urb *urb;
+ unsigned int tx_pipe;
+ int ival;
+ size_t size;
+
+ dbgvm("vmk80xx: %s\n", __func__);
+
+ urb = usb_alloc_urb(0, GFP_KERNEL);
+ if (!urb)
+ return -ENOMEM;
+
+ tx_pipe = usb_sndintpipe(dev->udev, 0x01);
+
+ ival = dev->ep_tx->bInterval;
+ size = le16_to_cpu(dev->ep_tx->wMaxPacketSize);
+
+ dev->usb_tx_buf[0] = VMK8055_CMD_RST;
+ dev->usb_tx_buf[1] = 0x00;
+ dev->usb_tx_buf[2] = 0x00;
+ dev->usb_tx_buf[3] = 0x00;
+ dev->usb_tx_buf[4] = 0x00;
+ dev->usb_tx_buf[5] = 0x00;
+ dev->usb_tx_buf[6] = 0x00;
+ dev->usb_tx_buf[7] = 0x00;
+
+ usb_fill_int_urb(urb, dev->udev, tx_pipe, dev->usb_tx_buf,
+ size, vmk80xx_tx_callback, dev, ival);
+
+ usb_anchor_urb(urb, &dev->tx_anchor);
+
+ return usb_submit_urb(urb, GFP_KERNEL);
+}
+
+static void vmk80xx_build_int_urb(struct urb *urb, int flag)
+{
+ struct vmk80xx_usb *dev = urb->context;
+ __u8 rx_addr, tx_addr;
+ unsigned int pipe;
+ unsigned char *buf;
+ size_t size;
+ void (*callback)(struct urb *);
+ int ival;
+
+ dbgvm("vmk80xx: %s\n", __func__);
+
+ if (flag & URB_RCV_FLAG) {
+ rx_addr = dev->ep_rx->bEndpointAddress;
+ pipe = usb_rcvintpipe(dev->udev, rx_addr);
+ buf = dev->usb_rx_buf;
+ size = le16_to_cpu(dev->ep_rx->wMaxPacketSize);
+ callback = vmk80xx_rx_callback;
+ ival = dev->ep_rx->bInterval;
+ } else { /* URB_SND_FLAG */
+ tx_addr = dev->ep_tx->bEndpointAddress;
+ pipe = usb_sndintpipe(dev->udev, tx_addr);
+ buf = dev->usb_tx_buf;
+ size = le16_to_cpu(dev->ep_tx->wMaxPacketSize);
+ callback = vmk80xx_tx_callback;
+ ival = dev->ep_tx->bInterval;
}
- udev = interface_to_usbdev(vm->intf);
+ usb_fill_int_urb(urb, dev->udev, pipe, buf,
+ size, callback, dev, ival);
+}
- /* Fill the urb and send off */
- usb_fill_int_urb(vm->irq_in_urb,
- udev,
- usb_rcvintpipe(udev, vm->irq_in_endpoint),
- vm->irq_in_buf,
- vm->irq_in_endpoint_size,
- vm_irq_in_callback,
- vm,
- vm->irq_in_interval);
+static void vmk80xx_do_bulk_msg(struct vmk80xx_usb *dev)
+{
+ __u8 tx_addr, rx_addr;
+ unsigned int tx_pipe, rx_pipe;
+ size_t size;
- vm->irq_in_running = 1;
- vm->irq_in_busy = 1; /* disallow following read request's */
+ dbgvm("vmk80xx: %s\n", __func__);
- retval = usb_submit_urb(vm->irq_in_urb, GFP_KERNEL);
- if (!retval) goto exit; /* success */
- /* FALL TROUGH */
- vm->irq_in_running = 0;
- DBGCM("comedi#: vmk80xx: %s - submit urb failed (err# %d)\n",
- __func__, retval);
+ set_bit(TRANS_IN_BUSY, &dev->flags);
+ set_bit(TRANS_OUT_BUSY, &dev->flags);
-exit:
- return retval;
+ tx_addr = dev->ep_tx->bEndpointAddress;
+ rx_addr = dev->ep_rx->bEndpointAddress;
+ tx_pipe = usb_sndbulkpipe(dev->udev, tx_addr);
+ rx_pipe = usb_rcvbulkpipe(dev->udev, rx_addr);
+
+ /* The max packet size attributes of the K8061
+ * input/output endpoints are identical */
+ size = le16_to_cpu(dev->ep_tx->wMaxPacketSize);
+
+ usb_bulk_msg(dev->udev, tx_pipe, dev->usb_tx_buf,
+ size, NULL, dev->ep_tx->bInterval);
+ usb_bulk_msg(dev->udev, rx_pipe, dev->usb_rx_buf,
+ size, NULL, HZ * 10);
+
+ clear_bit(TRANS_OUT_BUSY, &dev->flags);
+ clear_bit(TRANS_IN_BUSY, &dev->flags);
}
-static int vm_write(struct vmk80xx_usb *vm, unsigned char cmd)
+static int vmk80xx_read_packet(struct vmk80xx_usb *dev)
{
- struct usb_device *udev;
- int retval = -ENODEV;
+ struct urb *urb;
+ int retval;
- DBGVM("comedi#: vmk80xx: %s\n", __func__);
+ dbgvm("vmk80xx: %s\n", __func__);
- /* Verify that the device wasn't un-plugged */
- if (!vm->intf) {
- DBGCM("comedi#: vmk80xx: %s - No dev or dev un-plugged\n",
- __func__);
- goto exit;
- }
+ if (!dev->intf)
+ return -ENODEV;
- if (vm->irq_out_busy) {
- retval = wait_event_interruptible(vm->write_wait,
- !vm->irq_out_busy);
- if (retval < 0) { /* we were interrupted by a signal */
- retval = -ERESTART;
- goto exit;
- }
+ /* Only useful for interrupt transfers */
+ if (test_bit(TRANS_IN_BUSY, &dev->flags))
+ if (wait_event_interruptible(dev->read_wait,
+ !test_bit(TRANS_IN_BUSY, &dev->flags)))
+ return -ERESTART;
+
+ if (dev->board.model == VMK8061_MODEL) {
+ vmk80xx_do_bulk_msg(dev);
+
+ return 0;
}
- udev = interface_to_usbdev(vm->intf);
+ urb = usb_alloc_urb(0, GFP_KERNEL);
+ if (!urb)
+ return -ENOMEM;
- /* Set the command which should send to the device */
- vm->irq_out_buf[0] = cmd;
+ urb->context = dev;
+ vmk80xx_build_int_urb(urb, URB_RCV_FLAG);
- /* Fill the urb and send off */
- usb_fill_int_urb(vm->irq_out_urb,
- udev,
- usb_sndintpipe(udev, vm->irq_out_endpoint),
- vm->irq_out_buf,
- vm->irq_out_endpoint_size,
- vm_irq_out_callback,
- vm,
- vm->irq_out_interval);
+ set_bit(TRANS_IN_RUNNING, &dev->flags);
+ set_bit(TRANS_IN_BUSY, &dev->flags);
- vm->irq_out_busy = 1; /* disallow following write request's */
+ usb_anchor_urb(urb, &dev->rx_anchor);
- wmb();
+ retval = usb_submit_urb(urb, GFP_KERNEL);
+ if (!retval)
+ goto exit;
- retval = usb_submit_urb(vm->irq_out_urb, GFP_KERNEL);
- if (!retval) goto exit; /* success */
- /* FALL THROUGH */
- vm->irq_out_busy = 0;
- DBGCM("comedi#: vmk80xx: %s - submit urb failed (err# %d)\n",
- __func__, retval);
+ clear_bit(TRANS_IN_RUNNING, &dev->flags);
+ usb_unanchor_urb(urb);
exit:
+ usb_free_urb(urb);
+
return retval;
}
-/* ---------------------------------------------------------------------------
- * COMEDI-Interface (callback functions for the userspacs apps).
---------------------------------------------------------------------------- */
-static int vm_ai_rinsn(struct comedi_device *dev, struct comedi_subdevice *s,
- struct comedi_insn *insn, unsigned int *data)
+static int vmk80xx_write_packet(struct vmk80xx_usb *dev, int cmd)
{
- struct vmk80xx_usb *vm;
- int minor = dev->minor;
- int ch, ch_offs, i;
- int retval = -EFAULT;
+ struct urb *urb;
+ int retval;
- DBGVM("comedi%d: vmk80xx: %s\n", minor, __func__);
+ dbgvm("vmk80xx: %s\n", __func__);
- if (!(vm = (struct vmk80xx_usb *)dev->private))
- return retval;
+ if (!dev->intf)
+ return -ENODEV;
- down(&vm->limit_sem);
+ if (test_bit(TRANS_OUT_BUSY, &dev->flags))
+ if (wait_event_interruptible(dev->write_wait,
+ !test_bit(TRANS_OUT_BUSY, &dev->flags)))
+ return -ERESTART;
- /* We have an attached board ? */
- if (!vm->probed) {
- retval = -ENODEV;
- goto error;
- }
+ if (dev->board.model == VMK8061_MODEL) {
+ dev->usb_tx_buf[0] = cmd;
+ vmk80xx_do_bulk_msg(dev);
- /* interrupt-in pipe busy ? */
- if (vm->irq_in_busy) {
- retval = -EBUSY;
- goto error;
+ return 0;
}
- ch = CR_CHAN(insn->chanspec);
- ch_offs = (!ch) ? VMK8055_AO1 : VMK8055_AO2;
+ urb = usb_alloc_urb(0, GFP_KERNEL);
+ if (!urb)
+ return -ENOMEM;
+
+ urb->context = dev;
+ vmk80xx_build_int_urb(urb, URB_SND_FLAG);
- for (i = 0; i < insn->n; i++) {
- retval = vm_read(vm);
- if (retval)
- goto error;
+ set_bit(TRANS_OUT_BUSY, &dev->flags);
- /* NOTE:
- * The input voltage of the selected 8-bit AD channel
- * is converted to a value which lies between
- * 0 and 255.
- */
- data[i] = vm->irq_in_buf[ch_offs];
- }
+ usb_anchor_urb(urb, &dev->tx_anchor);
- up(&vm->limit_sem);
+ dev->usb_tx_buf[0] = cmd;
- /* Return the number of samples read */
- return i;
-error:
- up(&vm->limit_sem);
+ retval = usb_submit_urb(urb, GFP_KERNEL);
+ if (!retval)
+ goto exit;
+
+ clear_bit(TRANS_OUT_BUSY, &dev->flags);
+ usb_unanchor_urb(urb);
+
+exit:
+ usb_free_urb(urb);
return retval;
}
-static int vm_ao_winsn(struct comedi_device *dev, struct comedi_subdevice *s,
- struct comedi_insn *insn, unsigned int *data)
+#define DIR_IN 1
+#define DIR_OUT 2
+
+#define rudimentary_check(dir) \
+do { \
+ if (!dev) \
+ return -EFAULT; \
+ if (!dev->probed) \
+ return -ENODEV; \
+ if (!dev->attached) \
+ return -ENODEV; \
+ if ((dir) & DIR_IN) { \
+ if (test_bit(TRANS_IN_BUSY, &dev->flags)) \
+ return -EBUSY; \
+ } else { /* DIR_OUT */ \
+ if (test_bit(TRANS_OUT_BUSY, &dev->flags)) \
+ return -EBUSY; \
+ } \
+} while (0)
+
+static int vmk80xx_ai_rinsn(struct comedi_device *cdev,
+ struct comedi_subdevice *s,
+ struct comedi_insn *insn, unsigned int *data)
{
- struct vmk80xx_usb *vm;
- int minor = dev->minor;
- int ch, ch_offs, i;
- int retval = -EFAULT;
+ struct vmk80xx_usb *dev = cdev->private;
+ int chan, reg[2];
+ int n;
- DBGVM("comedi%d: vmk80xx: %s\n", minor, __func__);
+ dbgvm("vmk80xx: %s\n", __func__);
- if (!(vm = (struct vmk80xx_usb *)dev->private))
- return retval;
+ rudimentary_check(DIR_IN);
- down(&vm->limit_sem);
+ down(&dev->limit_sem);
+ chan = CR_CHAN(insn->chanspec);
- /* We have an attached board ? */
- if (!vm->probed) {
- retval = -ENODEV;
- goto error;
+ switch (dev->board.model) {
+ case VMK8055_MODEL:
+ if (!chan)
+ reg[0] = VMK8055_AI1_REG;
+ else
+ reg[0] = VMK8055_AI2_REG;
+ break;
+ case VMK8061_MODEL:
+ reg[0] = VMK8061_AI_REG1;
+ reg[1] = VMK8061_AI_REG2;
+ dev->usb_tx_buf[0] = VMK8061_CMD_RD_AI;
+ dev->usb_tx_buf[VMK8061_CH_REG] = chan;
+ break;
}
- /* interrupt-out pipe busy ? */
- if (vm->irq_out_busy) {
- retval = -EBUSY;
- goto error;
- }
+ for (n = 0; n < insn->n; n++) {
+ if (vmk80xx_read_packet(dev))
+ break;
- ch = CR_CHAN(insn->chanspec);
- ch_offs = (!ch) ? VMK8055_AO1 : VMK8055_AO2;
-
- for (i = 0; i < insn->n; i++) {
- /* NOTE:
- * The indicated 8-bit DA channel is altered according
- * to the new data. This means that the data corresponds
- * to a specific voltage. The value 0 corresponds to a
- * minimum output voltage (+-0 Volt) and the value 255
- * corresponds to a maximum output voltage (+5 Volt).
- */
- vm->irq_out_buf[ch_offs] = data[i];
-
- retval = vm_write(vm, VMK8055_CMD_AD);
- if (retval)
- goto error;
- }
+ if (dev->board.model == VMK8055_MODEL) {
+ data[n] = dev->usb_rx_buf[reg[0]];
+ continue;
+ }
- up(&vm->limit_sem);
+ /* VMK8061_MODEL */
+ data[n] = dev->usb_rx_buf[reg[0]] + 256 *
+ dev->usb_rx_buf[reg[1]];
+ }
- /* Return the number of samples write */
- return i;
-error:
- up(&vm->limit_sem);
+ up(&dev->limit_sem);
- return retval;
+ return n;
}
-static int vm_di_rinsn(struct comedi_device *dev, struct comedi_subdevice *s,
- struct comedi_insn *insn, unsigned int *data)
+static int vmk80xx_ao_winsn(struct comedi_device *cdev,
+ struct comedi_subdevice *s,
+ struct comedi_insn *insn, unsigned int *data)
{
- struct vmk80xx_usb *vm;
- int minor = dev->minor;
- int ch, i, inp;
- int retval = -EFAULT;
+ struct vmk80xx_usb *dev = cdev->private;
+ int chan, cmd, reg;
+ int n;
- DBGVM("comedi%d: vmk80xx: %s\n", minor, __func__);
+ dbgvm("vmk80xx: %s\n", __func__);
- if (!(vm = (struct vmk80xx_usb *)dev->private))
- return retval;
+ rudimentary_check(DIR_OUT);
- down(&vm->limit_sem);
+ down(&dev->limit_sem);
+ chan = CR_CHAN(insn->chanspec);
- /* We have an attached board ? */
- if (!vm->probed) {
- retval = -ENODEV;
- goto error;
+ switch (dev->board.model) {
+ case VMK8055_MODEL:
+ cmd = VMK8055_CMD_WRT_AD;
+ if (!chan)
+ reg = VMK8055_AO1_REG;
+ else
+ reg = VMK8055_AO2_REG;
+ break;
+ default: /* NOTE: avoid compiler warnings */
+ cmd = VMK8061_CMD_SET_AO;
+ reg = VMK8061_AO_REG;
+ dev->usb_tx_buf[VMK8061_CH_REG] = chan;
+ break;
}
- /* interrupt-in pipe busy ? */
- if (vm->irq_in_busy) {
- retval = -EBUSY;
- goto error;
- }
+ for (n = 0; n < insn->n; n++) {
+ dev->usb_tx_buf[reg] = data[n];
- for (i = 0, ch = CR_CHAN(insn->chanspec); i < insn->n; i++) {
- retval = vm_read(vm);
- if (retval)
- goto error;
-
- /* NOTE:
- * The status of the selected digital input channel is read.
- */
- inp = (((vm->irq_in_buf[VMK8055_DI] >> 4) & 0x03) |
- ((vm->irq_in_buf[VMK8055_DI] << 2) & 0x04) |
- ((vm->irq_in_buf[VMK8055_DI] >> 3) & 0x18));
- data[i] = ((inp & (1 << ch)) > 0);
+ if (vmk80xx_write_packet(dev, cmd))
+ break;
}
- up(&vm->limit_sem);
-
- return i;
-error:
- up(&vm->limit_sem);
+ up(&dev->limit_sem);
- return retval;
+ return n;
}
-static int vm_do_winsn(struct comedi_device *dev, struct comedi_subdevice *s,
- struct comedi_insn *insn, unsigned int *data)
+static int vmk80xx_ao_rinsn(struct comedi_device *cdev,
+ struct comedi_subdevice *s,
+ struct comedi_insn *insn, unsigned int *data)
{
- struct vmk80xx_usb *vm;
- int minor = dev->minor;
- int ch, i, mask;
- int retval = -EFAULT;
+ struct vmk80xx_usb *dev = cdev->private;
+ int chan, reg;
+ int n;
- DBGVM("comedi%d: vmk80xx: %s\n", minor, __func__);
+ dbgvm("vmk80xx: %s\n", __func__);
- if (!(vm = (struct vmk80xx_usb *)dev->private))
- return retval;
+ rudimentary_check(DIR_IN);
- down(&vm->limit_sem);
+ down(&dev->limit_sem);
+ chan = CR_CHAN(insn->chanspec);
- /* We have an attached board ? */
- if (!vm->probed) {
- retval = -ENODEV;
- goto error;
- }
+ reg = VMK8061_AO_REG - 1;
- /* interrupt-out pipe busy ? */
- if (vm->irq_out_busy) {
- retval = -EBUSY;
- goto error;
+ dev->usb_tx_buf[0] = VMK8061_CMD_RD_AO;
+
+ for (n = 0; n < insn->n; n++) {
+ if (vmk80xx_read_packet(dev))
+ break;
+
+ data[n] = dev->usb_rx_buf[reg+chan];
}
- for (i = 0, ch = CR_CHAN(insn->chanspec); i < insn->n; i++) {
- /* NOTE:
- * The selected digital output channel is set or cleared.
- */
- mask = (data[i] == 1)
- ? vm->irq_out_buf[VMK8055_DO] | (1 << ch)
- : vm->irq_out_buf[VMK8055_DO] ^ (1 << ch);
+ up(&dev->limit_sem);
- vm->irq_out_buf[VMK8055_DO] = mask;
+ return n;
+}
- retval = vm_write(vm, VMK8055_CMD_AD);
- if (retval)
- goto error;
- }
+static int vmk80xx_di_rinsn(struct comedi_device *cdev,
+ struct comedi_subdevice *s,
+ struct comedi_insn *insn, unsigned int *data)
+{
+ struct vmk80xx_usb *dev = cdev->private;
+ int chan;
+ unsigned char *rx_buf;
+ int reg, inp;
+ int n;
- up(&vm->limit_sem);
+ dbgvm("vmk80xx: %s\n", __func__);
- return i;
-error:
- up(&vm->limit_sem);
+ rudimentary_check(DIR_IN);
- return retval;
+ down(&dev->limit_sem);
+ chan = CR_CHAN(insn->chanspec);
+
+ rx_buf = dev->usb_rx_buf;
+
+ if (dev->board.model == VMK8061_MODEL) {
+ reg = VMK8061_DI_REG;
+ dev->usb_tx_buf[0] = VMK8061_CMD_RD_DI;
+ } else
+ reg = VMK8055_DI_REG;
+
+ for (n = 0; n < insn->n; n++) {
+ if (vmk80xx_read_packet(dev))
+ break;
+
+ if (dev->board.model == VMK8055_MODEL)
+ inp = (((rx_buf[reg] >> 4) & 0x03) |
+ ((rx_buf[reg] << 2) & 0x04) |
+ ((rx_buf[reg] >> 3) & 0x18));
+ else
+ inp = rx_buf[reg];
+
+ data[n] = ((inp & (1 << chan)) > 0);
+ }
+
+ up(&dev->limit_sem);
+
+ return n;
}
-static int vm_cnt_rinsn(struct comedi_device *dev, struct comedi_subdevice *s,
- struct comedi_insn *insn, unsigned int *data)
+static int vmk80xx_do_winsn(struct comedi_device *cdev,
+ struct comedi_subdevice *s,
+ struct comedi_insn *insn, unsigned int *data)
{
- struct vmk80xx_usb *vm;
- int minor = dev->minor;
- int cnt, cnt_offs, i;
- int retval = -EFAULT;
- DBGVM("comedi%d: vmk80xx: %s\n", minor, __func__);
+ struct vmk80xx_usb *dev = cdev->private;
+ int chan;
+ unsigned char *tx_buf;
+ int reg, cmd;
+ int n;
- if (!(vm = (struct vmk80xx_usb *)dev->private))
- return retval;
+ dbgvm("vmk80xx: %s\n", __func__);
- down(&vm->limit_sem);
+ rudimentary_check(DIR_OUT);
- /* We have an attached board ? */
- if (!vm->probed) {
- retval = -ENODEV;
- goto error;
- }
+ down(&dev->limit_sem);
+ chan = CR_CHAN(insn->chanspec);
- /* interrupt-in pipe busy ? */
- if (vm->irq_in_busy) {
- retval = -EBUSY;
- goto error;
- }
+ tx_buf = dev->usb_tx_buf;
- cnt = CR_CHAN(insn->chanspec);
- cnt_offs = (!cnt) ? VMK8055_CNT1 : VMK8055_CNT2;
-
- for (i = 0; i < insn->n; i++) {
- retval = vm_read(vm);
- if (retval)
- goto error;
-
- /* NOTE:
- * The status of the selected 16-bit pulse counter is
- * read. The counter # 1 counts the pulses fed to the
- * input Inp1 and the counter # 2 counts the pulses fed
- * to the input Inp2.
- */
- data[i] = vm->irq_in_buf[cnt_offs];
- }
+ for (n = 0; n < insn->n; n++) {
+ if (dev->board.model == VMK8055_MODEL) {
+ reg = VMK8055_DO_REG;
+ cmd = VMK8055_CMD_WRT_AD;
+ if (data[n] == 1)
+ tx_buf[reg] |= (1 << chan);
+ else
+ tx_buf[reg] ^= (1 << chan);
- up(&vm->limit_sem);
+ goto write_packet;
+ }
- return i;
-error:
- up(&vm->limit_sem);
+ /* VMK8061_MODEL */
+ reg = VMK8061_DO_REG;
+ if (data[n] == 1) {
+ cmd = VMK8061_CMD_SET_DO;
+ tx_buf[reg] = 1 << chan;
+ } else {
+ cmd = VMK8061_CMD_CLR_DO;
+ tx_buf[reg] = 0xff - (1 << chan);
+ }
- return retval;
+write_packet:
+ if (vmk80xx_write_packet(dev, cmd))
+ break;
+ }
+
+ up(&dev->limit_sem);
+
+ return n;
}
-static int vm_cnt_winsn(struct comedi_device *dev, struct comedi_subdevice *s,
- struct comedi_insn *insn, unsigned int *data)
+static int vmk80xx_do_rinsn(struct comedi_device *cdev,
+ struct comedi_subdevice *s,
+ struct comedi_insn *insn, unsigned int *data)
{
- struct vmk80xx_usb *vm;
- int minor = dev->minor;
- int cnt, cnt_offs, cmd, i;
- int retval = -EFAULT;
+ struct vmk80xx_usb *dev = cdev->private;
+ int chan, reg, mask;
+ int n;
- DBGVM("comedi%d: vmk80xx: %s\n", minor, __func__);
+ dbgvm("vmk80xx: %s\n", __func__);
- if (!(vm = (struct vmk80xx_usb *)dev->private))
- return retval;
+ rudimentary_check(DIR_IN);
- down(&vm->limit_sem);
+ down(&dev->limit_sem);
+ chan = CR_CHAN(insn->chanspec);
- /* We have an attached board ? */
- if (!vm->probed) {
- retval = -ENODEV;
- goto error;
- }
+ reg = VMK8061_DO_REG;
+ mask = 1 << chan;
- /* interrupt-out pipe busy ? */
- if (vm->irq_out_busy) {
- retval = -EBUSY;
- goto error;
+ dev->usb_tx_buf[0] = VMK8061_CMD_RD_DO;
+
+ for (n = 0; n < insn->n; n++) {
+ if (vmk80xx_read_packet(dev))
+ break;
+
+ data[n] = (dev->usb_rx_buf[reg] & mask) >> chan;
}
- cnt = CR_CHAN(insn->chanspec);
- cnt_offs = (!cnt) ? VMK8055_CNT1 : VMK8055_CNT2;
- cmd = (!cnt) ? VMK8055_CMD_RST_CNT1 : VMK8055_CMD_RST_CNT2;
+ up(&dev->limit_sem);
+
+ return n;
+}
+
+static int vmk80xx_cnt_rinsn(struct comedi_device *cdev,
+ struct comedi_subdevice *s,
+ struct comedi_insn *insn, unsigned int *data)
+{
+ struct vmk80xx_usb *dev = cdev->private;
+ int chan, reg[2];
+ int n;
+
+ dbgvm("vmk80xx: %s\n", __func__);
+
+ rudimentary_check(DIR_IN);
- for (i = 0; i < insn->n; i++) {
- /* NOTE:
- * The selected 16-bit pulse counter is reset.
- */
- vm->irq_out_buf[cnt_offs] = 0x00;
+ down(&dev->limit_sem);
+ chan = CR_CHAN(insn->chanspec);
- retval = vm_write(vm, cmd);
- if (retval)
- goto error;
+ switch (dev->board.model) {
+ case VMK8055_MODEL:
+ if (!chan)
+ reg[0] = VMK8055_CNT1_REG;
+ else
+ reg[0] = VMK8055_CNT2_REG;
+ break;
+ case VMK8061_MODEL:
+ reg[0] = VMK8061_CNT_REG;
+ reg[1] = VMK8061_CNT_REG;
+ dev->usb_tx_buf[0] = VMK8061_CMD_RD_CNT;
+ break;
}
- up(&vm->limit_sem);
+ for (n = 0; n < insn->n; n++) {
+ if (vmk80xx_read_packet(dev))
+ break;
- return i;
-error:
- up(&vm->limit_sem);
+ if (dev->board.model == VMK8055_MODEL) {
+ data[n] = dev->usb_rx_buf[reg[0]];
+ continue;
+ }
- return retval;
+ /* VMK8061_MODEL */
+ data[n] = dev->usb_rx_buf[reg[0]*(chan+1)+1]
+ + 256 * dev->usb_rx_buf[reg[1]*2+2];
+ }
+
+ up(&dev->limit_sem);
+
+ return n;
}
-static int vm_cnt_cinsn(struct comedi_device *dev, struct comedi_subdevice *s,
- struct comedi_insn *insn, unsigned int *data)
+static int vmk80xx_cnt_cinsn(struct comedi_device *cdev,
+ struct comedi_subdevice *s,
+ struct comedi_insn *insn, unsigned int *data)
{
- struct vmk80xx_usb *vm;
- int minor = dev->minor;
- int cnt, cmd, i;
- unsigned int debtime, val;
- int retval = -EFAULT;
+ struct vmk80xx_usb *dev = cdev->private;
+ unsigned int insn_cmd;
+ int chan, cmd, reg;
+ int n;
- DBGVM("comedi%d: vmk80xx: %s\n", minor, __func__);
+ dbgvm("vmk80xx: %s\n", __func__);
- if (!(vm = (struct vmk80xx_usb *)dev->private))
- return retval;
+ rudimentary_check(DIR_OUT);
- down(&vm->limit_sem);
+ down(&dev->limit_sem);
- /* We have an attached board ? */
- if (!vm->probed) {
- retval = -ENODEV;
- goto error;
- }
+ insn_cmd = data[0];
+ if (insn_cmd != INSN_CONFIG_RESET && insn_cmd != GPCT_RESET)
+ return -EINVAL;
- /* interrupt-out pipe busy ? */
- if (vm->irq_out_busy) {
- retval = -EBUSY;
- goto error;
- }
+ chan = CR_CHAN(insn->chanspec);
- cnt = CR_CHAN(insn->chanspec);
- cmd = (!cnt) ? VMK8055_CMD_DEB1 : VMK8055_CMD_DEB2;
-
- /* NOTE:
- * The counter inputs are debounced in the software to prevent
- * false triggering when mechanical switches or relay inputs
- * are used. The debounce time is equal for both falling and
- * rising edges. The default debounce time is 2ms. This means
- * the counter input must be stable for at least 2ms before it
- * is recognised , giving the maximum count rate of about 200
- * counts per second. If the debounce time is set to 0, then
- * the maximum counting rate is about 2000 counts per second.
- */
- for (i = 0; i < insn->n; i++) {
- debtime = data[i];
+ if (dev->board.model == VMK8055_MODEL) {
+ if (!chan) {
+ cmd = VMK8055_CMD_RST_CNT1;
+ reg = VMK8055_CNT1_REG;
+ } else {
+ cmd = VMK8055_CMD_RST_CNT2;
+ reg = VMK8055_CNT2_REG;
+ }
+
+ dev->usb_tx_buf[reg] = 0x00;
+ } else
+ cmd = VMK8061_CMD_RST_CNT;
+
+ for (n = 0; n < insn->n; n++)
+ if (vmk80xx_write_packet(dev, cmd))
+ break;
+
+ up(&dev->limit_sem);
+
+ return n;
+}
+
+static int vmk80xx_cnt_winsn(struct comedi_device *cdev,
+ struct comedi_subdevice *s,
+ struct comedi_insn *insn, unsigned int *data)
+{
+ struct vmk80xx_usb *dev = cdev->private;
+ unsigned long debtime, val;
+ int chan, cmd;
+ int n;
+
+ dbgvm("vmk80xx: %s\n", __func__);
+
+ rudimentary_check(DIR_OUT);
+
+ down(&dev->limit_sem);
+ chan = CR_CHAN(insn->chanspec);
+
+ if (!chan)
+ cmd = VMK8055_CMD_DEB1_TIME;
+ else
+ cmd = VMK8055_CMD_DEB2_TIME;
+
+ for (n = 0; n < insn->n; n++) {
+ debtime = data[n];
if (debtime == 0)
debtime = 1;
- /* --------------------------------------------------
- * From libk8055.c
- * ---------------
- * Copyleft (C) 2005 by Sven Lindberg;
- * Copyright (C) 2007 by Pjetur G. Hjaltason:
- * By testing and measuring on the other hand I found
- * the formula dbt=0.115*x^2.........
- *
- * I'm using here an adapted formula to avoid floating
- * point operations inside the kernel. The time set
- * with this formula is within +-4% +- 1.
- * ------------------------------------------------ */
+
+ /* TODO: Prevent overflows */
+ if (debtime > 7450)
+ debtime = 7450;
+
val = int_sqrt(debtime * 1000 / 115);
if (((val + 1) * val) < debtime * 1000 / 115)
val += 1;
- vm->irq_out_buf[cnt+6] = val;
+ dev->usb_tx_buf[6+chan] = val;
- retval = vm_write(vm, cmd);
- if (retval)
- goto error;
+ if (vmk80xx_write_packet(dev, cmd))
+ break;
}
- up(&vm->limit_sem);
+ up(&dev->limit_sem);
- return i;
-error:
- up(&vm->limit_sem);
+ return n;
+}
- return retval;
+static int vmk80xx_pwm_rinsn(struct comedi_device *cdev,
+ struct comedi_subdevice *s,
+ struct comedi_insn *insn, unsigned int *data)
+{
+ struct vmk80xx_usb *dev = cdev->private;
+ int reg[2];
+ int n;
+
+ dbgvm("vmk80xx: %s\n", __func__);
+
+ rudimentary_check(DIR_IN);
+
+ down(&dev->limit_sem);
+
+ reg[0] = VMK8061_PWM_REG1;
+ reg[1] = VMK8061_PWM_REG2;
+
+ dev->usb_tx_buf[0] = VMK8061_CMD_RD_PWM;
+
+ for (n = 0; n < insn->n; n++) {
+ if (vmk80xx_read_packet(dev))
+ break;
+
+ data[n] = dev->usb_rx_buf[reg[0]] + 4 *
+ dev->usb_rx_buf[reg[1]];
+ }
+
+ up(&dev->limit_sem);
+
+ return n;
}
-/* Comedi subdevice offsets */
-#define VMK8055_SUBD_AI_OFFSET 0
-#define VMK8055_SUBD_AO_OFFSET 1
-#define VMK8055_SUBD_DI_OFFSET 2
-#define VMK8055_SUBD_DO_OFFSET 3
-#define VMK8055_SUBD_CT_OFFSET 4
+static int vmk80xx_pwm_winsn(struct comedi_device *cdev,
+ struct comedi_subdevice *s,
+ struct comedi_insn *insn, unsigned int *data)
+{
+ struct vmk80xx_usb *dev = cdev->private;
+ unsigned char *tx_buf;
+ int reg[2], cmd;
+ int n;
-static DEFINE_MUTEX(glb_mutex);
+ dbgvm("vmk80xx: %s\n", __func__);
+
+ rudimentary_check(DIR_OUT);
+
+ down(&dev->limit_sem);
+
+ tx_buf = dev->usb_tx_buf;
+
+ reg[0] = VMK8061_PWM_REG1;
+ reg[1] = VMK8061_PWM_REG2;
+
+ cmd = VMK8061_CMD_OUT_PWM;
+
+ /*
+ * The followin piece of code was translated from the inline
+ * assembler code in the DLL source code.
+ *
+ * asm
+ * mov eax, k ; k is the value (data[n])
+ * and al, 03h ; al are the lower 8 bits of eax
+ * mov lo, al ; lo is the low part (tx_buf[reg[0]])
+ * mov eax, k
+ * shr eax, 2 ; right shift eax register by 2
+ * mov hi, al ; hi is the high part (tx_buf[reg[1]])
+ * end;
+ */
+ for (n = 0; n < insn->n; n++) {
+ tx_buf[reg[0]] = (unsigned char)(data[n] & 0x03);
+ tx_buf[reg[1]] = (unsigned char)(data[n] >> 2) & 0xff;
+
+ if (vmk80xx_write_packet(dev, cmd))
+ break;
+ }
-/* ---------------------------------------------------------------------------
- * Hook-up (or deallocate) the virtual device file '/dev/comedi[minor]' with
- * the vmk80xx driver (comedi_config/rmmod).
---------------------------------------------------------------------------- */
-static int vm_attach(struct comedi_device *dev, struct comedi_devconfig *it)
+ up(&dev->limit_sem);
+
+ return n;
+}
+
+static int
+vmk80xx_attach(struct comedi_device *cdev, struct comedi_devconfig *it)
{
+ int i;
+ struct vmk80xx_usb *dev;
+ int n_subd;
struct comedi_subdevice *s;
- int minor = dev->minor;
- int idx, i;
+ int minor;
- DBGVM("comedi%d: vmk80xx: %s\n", minor, __func__);
+ dbgvm("vmk80xx: %s\n", __func__);
mutex_lock(&glb_mutex);
- /* Prepare user info... */
- printk("comedi%d: vmk80xx: ", minor);
-
- idx = -1;
-
- /* Find the last valid device which has been detected
- * by the probe function */;
- for (i = 0; i < VMK8055_MAX_BOARDS; i++)
- if (vm_boards[i].probed && !vm_boards[i].attached) {
- idx = i;
+ for (i = 0; i < VMK80XX_MAX_BOARDS; i++)
+ if (vmb[i].probed && !vmb[i].attached)
break;
- }
- if (idx == -1) {
- printk("no boards attached\n");
+ if (i == VMK80XX_MAX_BOARDS) {
mutex_unlock(&glb_mutex);
return -ENODEV;
}
- down(&vm_boards[idx].limit_sem);
+ dev = &vmb[i];
+
+ down(&dev->limit_sem);
- /* OK, at that time we've an attached board and this is
- * the first execution of the comedi_config command for
- * this board */
- printk("board #%d is attached to comedi\n", vm_boards[idx].id);
+ cdev->board_name = dev->board.name;
+ cdev->private = dev;
- dev->board_name = "vmk80xx";
- dev->private = vm_boards + idx; /* will be allocated in vm_probe */
+ if (dev->board.model == VMK8055_MODEL)
+ n_subd = 5;
+ else
+ n_subd = 6;
- /* Subdevices section -> set properties */
- if (alloc_subdevices(dev, 5) < 0) {
- printk("comedi%d: vmk80xx: couldn't allocate subdevs\n",
- minor);
- up(&vm_boards[idx].limit_sem);
+ if (alloc_subdevices(cdev, n_subd) < 0) {
+ up(&dev->limit_sem);
mutex_unlock(&glb_mutex);
return -ENOMEM;
}
- s = dev->subdevices + VMK8055_SUBD_AI_OFFSET;
+ /* Analog input subdevice */
+ s = cdev->subdevices + VMK80XX_SUBD_AI;
s->type = COMEDI_SUBD_AI;
s->subdev_flags = SDF_READABLE | SDF_GROUND;
- s->n_chan = 2;
- s->maxdata = 0xff; /* +5 Volt */
- s->range_table = &range_unipolar5; /* +-0 Volt - +5 Volt */
- s->insn_read = vm_ai_rinsn;
+ s->n_chan = dev->board.ai_chans;
+ s->maxdata = (1 << dev->board.ai_bits) - 1;
+ s->range_table = dev->board.range;
+ s->insn_read = vmk80xx_ai_rinsn;
- s = dev->subdevices + VMK8055_SUBD_AO_OFFSET;
+ /* Analog output subdevice */
+ s = cdev->subdevices + VMK80XX_SUBD_AO;
s->type = COMEDI_SUBD_AO;
s->subdev_flags = SDF_WRITEABLE | SDF_GROUND;
- s->n_chan = 2;
- s->maxdata = 0xff;
- s->range_table = &range_unipolar5;
- s->insn_write = vm_ao_winsn;
+ s->n_chan = dev->board.ao_chans;
+ s->maxdata = (1 << dev->board.ao_bits) - 1;
+ s->range_table = dev->board.range;
+ s->insn_write = vmk80xx_ao_winsn;
+
+ if (dev->board.model == VMK8061_MODEL) {
+ s->subdev_flags |= SDF_READABLE;
+ s->insn_read = vmk80xx_ao_rinsn;
+ }
- s = dev->subdevices + VMK8055_SUBD_DI_OFFSET;
+ /* Digital input subdevice */
+ s = cdev->subdevices + VMK80XX_SUBD_DI;
s->type = COMEDI_SUBD_DI;
s->subdev_flags = SDF_READABLE | SDF_GROUND;
- s->n_chan = 5;
- s->insn_read = vm_di_rinsn;
+ s->n_chan = dev->board.di_chans;
+ s->maxdata = (1 << dev->board.di_bits) - 1;
+ s->insn_read = vmk80xx_di_rinsn;
- s = dev->subdevices + VMK8055_SUBD_DO_OFFSET;
+ /* Digital output subdevice */
+ s = cdev->subdevices + VMK80XX_SUBD_DO;
s->type = COMEDI_SUBD_DO;
s->subdev_flags = SDF_WRITEABLE | SDF_GROUND;
- s->n_chan = 8;
- s->maxdata = 1;
- s->insn_write = vm_do_winsn;
+ s->n_chan = dev->board.do_chans;
+ s->maxdata = (1 << dev->board.do_bits) - 1;
+ s->insn_write = vmk80xx_do_winsn;
- s = dev->subdevices + VMK8055_SUBD_CT_OFFSET;
+ if (dev->board.model == VMK8061_MODEL) {
+ s->subdev_flags |= SDF_READABLE;
+ s->insn_read = vmk80xx_do_rinsn;
+ }
+
+ /* Counter subdevice */
+ s = cdev->subdevices + VMK80XX_SUBD_CNT;
s->type = COMEDI_SUBD_COUNTER;
- s->subdev_flags = SDF_READABLE | SDF_WRITEABLE;
- s->n_chan = 2;
- s->insn_read = vm_cnt_rinsn;
- s->insn_write = vm_cnt_winsn; /* accept only a channel # as arg */
- s->insn_config = vm_cnt_cinsn;
+ s->subdev_flags = SDF_READABLE;
+ s->n_chan = dev->board.cnt_chans;
+ s->insn_read = vmk80xx_cnt_rinsn;
+ s->insn_config = vmk80xx_cnt_cinsn;
+
+ if (dev->board.model == VMK8055_MODEL) {
+ s->subdev_flags |= SDF_WRITEABLE;
+ s->maxdata = (1 << dev->board.cnt_bits) - 1;
+ s->insn_write = vmk80xx_cnt_winsn;
+ }
+
+ /* PWM subdevice */
+ if (dev->board.model == VMK8061_MODEL) {
+ s = cdev->subdevices + VMK80XX_SUBD_PWM;
+ s->type = COMEDI_SUBD_PWM;
+ s->subdev_flags = SDF_READABLE | SDF_WRITEABLE;
+ s->n_chan = dev->board.pwm_chans;
+ s->maxdata = (1 << dev->board.pwm_bits) - 1;
+ s->insn_read = vmk80xx_pwm_rinsn;
+ s->insn_write = vmk80xx_pwm_winsn;
+ }
- /* Register the comedi board connection */
- vm_boards[idx].attached = 1;
+ dev->attached = 1;
- up(&vm_boards[idx].limit_sem);
+ minor = cdev->minor;
+ printk(KERN_INFO
+ "comedi%d: vmk80xx: board #%d [%s] attached to comedi\n",
+ minor, dev->count, dev->board.name);
+
+ up(&dev->limit_sem);
mutex_unlock(&glb_mutex);
return 0;
}
-static int vm_detach(struct comedi_device *dev)
+static int vmk80xx_detach(struct comedi_device *cdev)
{
- struct vmk80xx_usb *vm;
- int minor = dev->minor;
+ struct vmk80xx_usb *dev;
+ int minor;
- DBGVM("comedi%d: vmk80xx: %s\n", minor, __func__);
+ dbgvm("vmk80xx: %s\n", __func__);
- if (!dev) { /* FIXME: I don't know if i need that here */
- printk("comedi%d: vmk80xx: %s - dev is NULL\n",
- minor, __func__);
+ if (!cdev)
return -EFAULT;
- }
- if (!(vm = (struct vmk80xx_usb *)dev->private)) {
- printk("comedi%d: vmk80xx: %s - dev->private is NULL\n",
- minor, __func__);
+ dev = cdev->private;
+ if (!dev)
return -EFAULT;
- }
- /* NOTE: dev->private and dev->subdevices are deallocated
- * automatically by the comedi core */
+ down(&dev->limit_sem);
- down(&vm->limit_sem);
+ cdev->private = NULL;
+ dev->attached = 0;
- dev->private = NULL;
- vm->attached = 0;
+ minor = cdev->minor;
- printk("comedi%d: vmk80xx: board #%d removed from comedi core\n",
- minor, vm->id);
+ printk(KERN_INFO
+ "comedi%d: vmk80xx: board #%d [%s] detached from comedi\n",
+ minor, dev->count, dev->board.name);
- up(&vm->limit_sem);
+ up(&dev->limit_sem);
return 0;
}
-/* ---------------------------------------------------------------------------
- * Hook-up or remove the Velleman board from the usb.
---------------------------------------------------------------------------- */
-static int vm_probe(struct usb_interface *itf, const struct usb_device_id *id)
+static int
+vmk80xx_probe(struct usb_interface *intf, const struct usb_device_id *id)
{
- struct usb_device *udev;
- int idx, i;
- u16 product_id;
- int retval = -ENOMEM;
+ int i;
+ struct vmk80xx_usb *dev;
+ struct usb_host_interface *iface_desc;
+ struct usb_endpoint_descriptor *ep_desc;
+ size_t size;
- DBGVM("comedi#: vmk80xx: %s\n", __func__);
+ dbgvm("vmk80xx: %s\n", __func__);
mutex_lock(&glb_mutex);
- udev = interface_to_usbdev(itf);
-
- idx = -1;
+ for (i = 0; i < VMK80XX_MAX_BOARDS; i++)
+ if (!vmb[i].probed)
+ break;
- /* TODO: k8061 only theoretically supported yet */
- product_id = le16_to_cpu(udev->descriptor.idProduct);
- if (product_id == 0x8061) {
- printk("comedi#: vmk80xx: Velleman K8061 detected "
- "(no COMEDI support available yet)\n");
+ if (i == VMK80XX_MAX_BOARDS) {
mutex_unlock(&glb_mutex);
- return -ENODEV;
+ return -EMFILE;
}
- /* Look for a free place to put the board into the array */
- for (i = 0; i < VMK8055_MAX_BOARDS; i++) {
- if (!vm_boards[i].probed) {
- idx = i;
- i = VMK8055_MAX_BOARDS;
+ dev = &vmb[i];
+
+ memset(dev, 0x00, sizeof(struct vmk80xx_usb));
+ dev->count = i;
+
+ iface_desc = intf->cur_altsetting;
+ if (iface_desc->desc.bNumEndpoints != 2)
+ goto error;
+
+ for (i = 0; i < iface_desc->desc.bNumEndpoints; i++) {
+ ep_desc = &iface_desc->endpoint[i].desc;
+
+ if (usb_endpoint_is_int_in(ep_desc)) {
+ dev->ep_rx = ep_desc;
+ continue;
}
- }
- if (idx == -1) {
- printk("comedi#: vmk80xx: only FOUR boards supported\n");
- mutex_unlock(&glb_mutex);
- return -EMFILE;
- }
+ if (usb_endpoint_is_int_out(ep_desc)) {
+ dev->ep_tx = ep_desc;
+ continue;
+ }
- /* Initialize device states (hard coded) */
- vm_boards[idx].intf = itf;
+ if (usb_endpoint_is_bulk_in(ep_desc)) {
+ dev->ep_rx = ep_desc;
+ continue;
+ }
- /* interrupt-in context */
- vm_boards[idx].irq_in_endpoint = VMK8055_EP_IN;
- vm_boards[idx].irq_in_interval = VMK8055_EP_INTERVAL;
- vm_boards[idx].irq_in_endpoint_size = VMK8055_EP_SIZE;
- vm_boards[idx].irq_in_buf = kmalloc(VMK8055_EP_SIZE, GFP_KERNEL);
- if (!vm_boards[idx].irq_in_buf) {
- err("comedi#: vmk80xx: couldn't alloc irq_in_buf\n");
- goto error;
+ if (usb_endpoint_is_bulk_out(ep_desc)) {
+ dev->ep_tx = ep_desc;
+ continue;
+ }
}
- /* interrupt-out context */
- vm_boards[idx].irq_out_endpoint = VMK8055_EP_OUT;
- vm_boards[idx].irq_out_interval = VMK8055_EP_INTERVAL;
- vm_boards[idx].irq_out_endpoint_size = VMK8055_EP_SIZE;
- vm_boards[idx].irq_out_buf = kmalloc(VMK8055_EP_SIZE, GFP_KERNEL);
- if (!vm_boards[idx].irq_out_buf) {
- err("comedi#: vmk80xx: couldn't alloc irq_out_buf\n");
+ if (!dev->ep_rx || !dev->ep_tx)
goto error;
- }
- /* Endpoints located ? */
- if (!vm_boards[idx].irq_in_endpoint) {
- err("comedi#: vmk80xx: int-in endpoint not found\n");
- goto error;
+ size = le16_to_cpu(dev->ep_rx->wMaxPacketSize);
+ dev->usb_rx_buf = kmalloc(size, GFP_KERNEL);
+ if (!dev->usb_rx_buf) {
+ mutex_unlock(&glb_mutex);
+ return -ENOMEM;
}
- if (!vm_boards[idx].irq_out_endpoint) {
- err("comedi#: vmk80xx: int-out endpoint not found\n");
- goto error;
+ size = le16_to_cpu(dev->ep_tx->wMaxPacketSize);
+ dev->usb_tx_buf = kmalloc(size, GFP_KERNEL);
+ if (!dev->usb_tx_buf) {
+ kfree(dev->usb_rx_buf);
+ mutex_unlock(&glb_mutex);
+ return -ENOMEM;
}
- /* Try to allocate in/out urbs */
- vm_boards[idx].irq_in_urb = usb_alloc_urb(0, GFP_KERNEL);
- if (!vm_boards[idx].irq_in_urb) {
- err("comedi#: vmk80xx: couldn't alloc irq_in_urb\n");
- goto error;
+ dev->udev = interface_to_usbdev(intf);
+ dev->intf = intf;
+
+ sema_init(&dev->limit_sem, 8);
+ init_waitqueue_head(&dev->read_wait);
+ init_waitqueue_head(&dev->write_wait);
+
+ init_usb_anchor(&dev->rx_anchor);
+ init_usb_anchor(&dev->tx_anchor);
+
+ usb_set_intfdata(intf, dev);
+
+ switch (id->driver_info) {
+ case DEVICE_VMK8055:
+ dev->board.name = "K8055 (VM110)";
+ dev->board.model = VMK8055_MODEL;
+ dev->board.range = &vmk8055_range;
+ dev->board.ai_chans = 2;
+ dev->board.ai_bits = 8;
+ dev->board.ao_chans = 2;
+ dev->board.ao_bits = 8;
+ dev->board.di_chans = 5;
+ dev->board.di_bits = 1;
+ dev->board.do_chans = 8;
+ dev->board.do_bits = 1;
+ dev->board.cnt_chans = 2;
+ dev->board.cnt_bits = 16;
+ dev->board.pwm_chans = 0;
+ dev->board.pwm_bits = 0;
+ break;
+ case DEVICE_VMK8061:
+ dev->board.name = "K8061 (VM140)";
+ dev->board.model = VMK8061_MODEL;
+ dev->board.range = &vmk8061_range;
+ dev->board.ai_chans = 8;
+ dev->board.ai_bits = 10;
+ dev->board.ao_chans = 8;
+ dev->board.ao_bits = 8;
+ dev->board.di_chans = 8;
+ dev->board.di_bits = 1;
+ dev->board.do_chans = 8;
+ dev->board.do_bits = 1;
+ dev->board.cnt_chans = 2;
+ dev->board.cnt_bits = 0;
+ dev->board.pwm_chans = 1;
+ dev->board.pwm_bits = 10;
+ break;
}
- vm_boards[idx].irq_out_urb = usb_alloc_urb(0, GFP_KERNEL);
- if (!vm_boards[idx].irq_out_urb) {
- err("comedi#: vmk80xx: couldn't alloc irq_out_urb\n");
- goto error;
+ if (dev->board.model == VMK8061_MODEL) {
+ vmk80xx_read_eeprom(dev, IC3_VERSION);
+ printk(KERN_INFO "comedi#: vmk80xx: %s\n",
+ dev->fw.ic3_vers);
+
+ if (vmk80xx_check_data_link(dev)) {
+ vmk80xx_read_eeprom(dev, IC6_VERSION);
+ printk(KERN_INFO "comedi#: vmk80xx: %s\n",
+ dev->fw.ic6_vers);
+ } else
+ dbgcm("comedi#: vmk80xx: no conn. to CPU\n");
}
- /* Reset the device */
- vm_boards[idx].irq_out_buf[0] = VMK8055_CMD_RST;
- vm_boards[idx].irq_out_buf[1] = 0x00;
- vm_boards[idx].irq_out_buf[2] = 0x00;
- vm_boards[idx].irq_out_buf[3] = 0x00;
- vm_boards[idx].irq_out_buf[4] = 0x00;
- vm_boards[idx].irq_out_buf[5] = 0x00;
- vm_boards[idx].irq_out_buf[6] = 0x00;
- vm_boards[idx].irq_out_buf[7] = 0x00;
-
- usb_fill_int_urb(vm_boards[idx].irq_out_urb,
- udev,
- usb_sndintpipe(udev,
- vm_boards[idx].irq_out_endpoint),
- vm_boards[idx].irq_out_buf,
- vm_boards[idx].irq_out_endpoint_size,
- vm_irq_out_callback,
- &vm_boards[idx],
- vm_boards[idx].irq_out_interval);
-
- retval = usb_submit_urb(vm_boards[idx].irq_out_urb, GFP_KERNEL);
- if (retval)
- DBGCM("comedi#: vmk80xx: device reset failed (err #%d)\n",
- retval);
- else
- DBGCM("comedi#: vmk80xx: device reset success\n");
-
+ if (dev->board.model == VMK8055_MODEL)
+ vmk80xx_reset_device(dev);
- usb_set_intfdata(itf, &vm_boards[idx]);
+ dev->probed = 1;
- /* Show some debugging messages if required */
- DBGCM("comedi#: vmk80xx: [<-] ep addr 0x%02x size %d interval %d\n",
- vm_boards[idx].irq_in_endpoint,
- vm_boards[idx].irq_in_endpoint_size,
- vm_boards[idx].irq_in_interval);
- DBGCM("comedi#: vmk80xx: [->] ep addr 0x%02x size %d interval %d\n",
- vm_boards[idx].irq_out_endpoint,
- vm_boards[idx].irq_out_endpoint_size,
- vm_boards[idx].irq_out_interval);
-
- vm_boards[idx].id = idx;
-
- /* Let the user know that the device is now attached */
- printk("comedi#: vmk80xx: K8055 board #%d now attached\n",
- vm_boards[idx].id);
-
- /* We have an attached velleman board */
- vm_boards[idx].probed = 1;
+ printk(KERN_INFO "comedi#: vmk80xx: board #%d [%s] now attached\n",
+ dev->count, dev->board.name);
mutex_unlock(&glb_mutex);
- return retval;
+ return 0;
error:
- vm_delete(&vm_boards[idx]);
-
mutex_unlock(&glb_mutex);
- return retval;
+ return -ENODEV;
}
-static void vm_disconnect(struct usb_interface *intf)
+static void vmk80xx_disconnect(struct usb_interface *intf)
{
- struct vmk80xx_usb *vm;
+ struct vmk80xx_usb *dev = usb_get_intfdata(intf);
- DBGVM("comedi#: vmk80xx: %s\n", __func__);
+ dbgvm("vmk80xx: %s\n", __func__);
- vm = (struct vmk80xx_usb *)usb_get_intfdata(intf);
- if (!vm) {
- printk("comedi#: vmk80xx: %s - vm is NULL\n", __func__);
- return; /* -EFAULT */
- }
+ if (!dev)
+ return;
mutex_lock(&glb_mutex);
- /* Twill be needed if the driver supports more than one board */
- down(&vm->limit_sem);
+ down(&dev->limit_sem);
- vm->probed = 0; /* we have -1 attached boards */
- usb_set_intfdata(vm->intf, NULL);
+ dev->probed = 0;
+ usb_set_intfdata(dev->intf, NULL);
- vm_delete(vm); /* tidy up */
+ usb_kill_anchored_urbs(&dev->rx_anchor);
+ usb_kill_anchored_urbs(&dev->tx_anchor);
- /* Twill be needed if the driver supports more than one board */
- up(&vm->limit_sem);
- mutex_unlock(&glb_mutex);
+ kfree(dev->usb_rx_buf);
+ kfree(dev->usb_tx_buf);
- printk("comedi#: vmk80xx: Velleman board #%d now detached\n",
- vm->id);
+ printk(KERN_INFO "comedi#: vmk80xx: board #%d [%s] now detached\n",
+ dev->count, dev->board.name);
+
+ up(&dev->limit_sem);
+ mutex_unlock(&glb_mutex);
}
-/* ---------------------------------------------------------------------------
- * Register/Deregister this driver with/from the usb subsystem and the comedi.
---------------------------------------------------------------------------- */
-static struct usb_driver vm_driver = {
- .name = "vmk80xx",
- .probe = vm_probe,
- .disconnect = vm_disconnect,
- .id_table = vm_id_table,
+/* TODO: Add support for suspend, resume, pre_reset,
+ * post_reset and flush */
+static struct usb_driver vmk80xx_driver = {
+ .name = "vmk80xx",
+ .probe = vmk80xx_probe,
+ .disconnect = vmk80xx_disconnect,
+ .id_table = vmk80xx_id_table
};
-static struct comedi_driver driver_vm = {
- .module = THIS_MODULE,
- .driver_name = "vmk80xx",
- .attach = vm_attach,
- .detach = vm_detach,
+static struct comedi_driver driver_vmk80xx = {
+ .module = THIS_MODULE,
+ .driver_name = "vmk80xx",
+ .attach = vmk80xx_attach,
+ .detach = vmk80xx_detach
};
-static int __init vm_init(void)
+static int __init vmk80xx_init(void)
{
- int retval, idx;
-
- printk("vmk80xx: version " VMK80XX_MODULE_VERSION " -"
- " Manuel Gebele <forensixs@gmx.de>\n");
-
- for (idx = 0; idx < VMK8055_MAX_BOARDS; idx++) {
- memset(&vm_boards[idx], 0x00, sizeof(vm_boards[idx]));
- init_MUTEX(&vm_boards[idx].limit_sem);
- init_waitqueue_head(&vm_boards[idx].read_wait);
- init_waitqueue_head(&vm_boards[idx].write_wait);
- }
-
- /* Register with the usb subsystem */
- retval = usb_register(&vm_driver);
- if (retval) {
- err("vmk80xx: usb subsystem registration failed (err #%d)\n",
- retval);
- return retval;
- }
-
- /* Register with the comedi core */
- retval = comedi_driver_register(&driver_vm);
- if (retval) {
- err("vmk80xx: comedi core registration failed (err #%d)\n",
- retval);
- usb_deregister(&vm_driver);
- }
-
- return retval;
+ printk(KERN_INFO "vmk80xx: version 0.8.01 "
+ "Manuel Gebele <forensixs@gmx.de>\n");
+ usb_register(&vmk80xx_driver);
+ return comedi_driver_register(&driver_vmk80xx);
}
-static void __exit vm_exit(void)
+static void __exit vmk80xx_exit(void)
{
- comedi_driver_unregister(&driver_vm);
- usb_deregister(&vm_driver);
+ comedi_driver_unregister(&driver_vmk80xx);
+ usb_deregister(&vmk80xx_driver);
}
-module_init(vm_init);
-module_exit(vm_exit);
+
+module_init(vmk80xx_init);
+module_exit(vmk80xx_exit);
projects / GitHub / LineageOS / android_kernel_samsung_universal7580.git / commitdiff