diff options
Diffstat (limited to 'drivers/comedi/drivers/vmk80xx.c')
| -rw-r--r-- | drivers/comedi/drivers/vmk80xx.c | 880 |
1 files changed, 880 insertions, 0 deletions
diff --git a/drivers/comedi/drivers/vmk80xx.c b/drivers/comedi/drivers/vmk80xx.c new file mode 100644 index 000000000000..9f920819cd74 --- /dev/null +++ b/drivers/comedi/drivers/vmk80xx.c @@ -0,0 +1,880 @@ +// SPDX-License-Identifier: GPL-2.0+ +/* + * vmk80xx.c + * Velleman USB Board Low-Level Driver + * + * Copyright (C) 2009 Manuel Gebele <forensixs@gmx.de>, Germany + * + * COMEDI - Linux Control and Measurement Device Interface + * Copyright (C) 2000 David A. Schleef <ds@schleef.org> + */ + +/* + * Driver: vmk80xx + * Description: Velleman USB Board Low-Level Driver + * Devices: [Velleman] K8055 (K8055/VM110), K8061 (K8061/VM140), + * VM110 (K8055/VM110), VM140 (K8061/VM140) + * Author: Manuel Gebele <forensixs@gmx.de> + * Updated: Sun, 10 May 2009 11:14:59 +0200 + * Status: works + * + * Supports: + * - analog input + * - analog output + * - digital input + * - digital output + * - counter + * - pwm + */ + +#include <linux/kernel.h> +#include <linux/module.h> +#include <linux/mutex.h> +#include <linux/errno.h> +#include <linux/input.h> +#include <linux/slab.h> +#include <linux/poll.h> +#include <linux/uaccess.h> + +#include "../comedi_usb.h" + +enum { + DEVICE_VMK8055, + DEVICE_VMK8061 +}; + +#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 IC3_VERSION BIT(0) +#define IC6_VERSION BIT(1) + +enum vmk80xx_model { + VMK8055_MODEL, + VMK8061_MODEL +}; + +static const struct comedi_lrange vmk8061_range = { + 2, { + UNI_RANGE(5), + UNI_RANGE(10) + } +}; + +struct vmk80xx_board { + const char *name; + enum vmk80xx_model model; + const struct comedi_lrange *range; + int ai_nchans; + unsigned int ai_maxdata; + int ao_nchans; + int di_nchans; + unsigned int cnt_maxdata; + int pwm_nchans; + unsigned int pwm_maxdata; +}; + +static const struct vmk80xx_board vmk80xx_boardinfo[] = { + [DEVICE_VMK8055] = { + .name = "K8055 (VM110)", + .model = VMK8055_MODEL, + .range = &range_unipolar5, + .ai_nchans = 2, + .ai_maxdata = 0x00ff, + .ao_nchans = 2, + .di_nchans = 6, + .cnt_maxdata = 0xffff, + }, + [DEVICE_VMK8061] = { + .name = "K8061 (VM140)", + .model = VMK8061_MODEL, + .range = &vmk8061_range, + .ai_nchans = 8, + .ai_maxdata = 0x03ff, + .ao_nchans = 8, + .di_nchans = 8, + .cnt_maxdata = 0, /* unknown, device is not writeable */ + .pwm_nchans = 1, + .pwm_maxdata = 0x03ff, + }, +}; + +struct vmk80xx_private { + struct usb_endpoint_descriptor *ep_rx; + struct usb_endpoint_descriptor *ep_tx; + struct semaphore limit_sem; + unsigned char *usb_rx_buf; + unsigned char *usb_tx_buf; + enum vmk80xx_model model; +}; + +static void vmk80xx_do_bulk_msg(struct comedi_device *dev) +{ + struct vmk80xx_private *devpriv = dev->private; + struct usb_device *usb = comedi_to_usb_dev(dev); + __u8 tx_addr; + __u8 rx_addr; + unsigned int tx_pipe; + unsigned int rx_pipe; + size_t size; + + tx_addr = devpriv->ep_tx->bEndpointAddress; + rx_addr = devpriv->ep_rx->bEndpointAddress; + tx_pipe = usb_sndbulkpipe(usb, tx_addr); + rx_pipe = usb_rcvbulkpipe(usb, rx_addr); + + /* + * The max packet size attributes of the K8061 + * input/output endpoints are identical + */ + size = usb_endpoint_maxp(devpriv->ep_tx); + + usb_bulk_msg(usb, tx_pipe, devpriv->usb_tx_buf, + size, NULL, devpriv->ep_tx->bInterval); + usb_bulk_msg(usb, rx_pipe, devpriv->usb_rx_buf, size, NULL, HZ * 10); +} + +static int vmk80xx_read_packet(struct comedi_device *dev) +{ + struct vmk80xx_private *devpriv = dev->private; + struct usb_device *usb = comedi_to_usb_dev(dev); + struct usb_endpoint_descriptor *ep; + unsigned int pipe; + + if (devpriv->model == VMK8061_MODEL) { + vmk80xx_do_bulk_msg(dev); + return 0; + } + + ep = devpriv->ep_rx; + pipe = usb_rcvintpipe(usb, ep->bEndpointAddress); + return usb_interrupt_msg(usb, pipe, devpriv->usb_rx_buf, + usb_endpoint_maxp(ep), NULL, + HZ * 10); +} + +static int vmk80xx_write_packet(struct comedi_device *dev, int cmd) +{ + struct vmk80xx_private *devpriv = dev->private; + struct usb_device *usb = comedi_to_usb_dev(dev); + struct usb_endpoint_descriptor *ep; + unsigned int pipe; + + devpriv->usb_tx_buf[0] = cmd; + + if (devpriv->model == VMK8061_MODEL) { + vmk80xx_do_bulk_msg(dev); + return 0; + } + + ep = devpriv->ep_tx; + pipe = usb_sndintpipe(usb, ep->bEndpointAddress); + return usb_interrupt_msg(usb, pipe, devpriv->usb_tx_buf, + usb_endpoint_maxp(ep), NULL, + HZ * 10); +} + +static int vmk80xx_reset_device(struct comedi_device *dev) +{ + struct vmk80xx_private *devpriv = dev->private; + size_t size; + int retval; + + size = usb_endpoint_maxp(devpriv->ep_tx); + memset(devpriv->usb_tx_buf, 0, size); + retval = vmk80xx_write_packet(dev, VMK8055_CMD_RST); + if (retval) + return retval; + /* set outputs to known state as we cannot read them */ + return vmk80xx_write_packet(dev, VMK8055_CMD_WRT_AD); +} + +static int vmk80xx_ai_insn_read(struct comedi_device *dev, + struct comedi_subdevice *s, + struct comedi_insn *insn, + unsigned int *data) +{ + struct vmk80xx_private *devpriv = dev->private; + int chan; + int reg[2]; + int n; + + down(&devpriv->limit_sem); + chan = CR_CHAN(insn->chanspec); + + switch (devpriv->model) { + case VMK8055_MODEL: + if (!chan) + reg[0] = VMK8055_AI1_REG; + else + reg[0] = VMK8055_AI2_REG; + break; + case VMK8061_MODEL: + default: + reg[0] = VMK8061_AI_REG1; + reg[1] = VMK8061_AI_REG2; + devpriv->usb_tx_buf[0] = VMK8061_CMD_RD_AI; + devpriv->usb_tx_buf[VMK8061_CH_REG] = chan; + break; + } + + for (n = 0; n < insn->n; n++) { + if (vmk80xx_read_packet(dev)) + break; + + if (devpriv->model == VMK8055_MODEL) { + data[n] = devpriv->usb_rx_buf[reg[0]]; + continue; + } + + /* VMK8061_MODEL */ + data[n] = devpriv->usb_rx_buf[reg[0]] + 256 * + devpriv->usb_rx_buf[reg[1]]; + } + + up(&devpriv->limit_sem); + + return n; +} + +static int vmk80xx_ao_insn_write(struct comedi_device *dev, + struct comedi_subdevice *s, + struct comedi_insn *insn, + unsigned int *data) +{ + struct vmk80xx_private *devpriv = dev->private; + int chan; + int cmd; + int reg; + int n; + + down(&devpriv->limit_sem); + chan = CR_CHAN(insn->chanspec); + + switch (devpriv->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; + devpriv->usb_tx_buf[VMK8061_CH_REG] = chan; + break; + } + + for (n = 0; n < insn->n; n++) { + devpriv->usb_tx_buf[reg] = data[n]; + + if (vmk80xx_write_packet(dev, cmd)) + break; + } + + up(&devpriv->limit_sem); + + return n; +} + +static int vmk80xx_ao_insn_read(struct comedi_device *dev, + struct comedi_subdevice *s, + struct comedi_insn *insn, + unsigned int *data) +{ + struct vmk80xx_private *devpriv = dev->private; + int chan; + int reg; + int n; + + down(&devpriv->limit_sem); + chan = CR_CHAN(insn->chanspec); + + reg = VMK8061_AO_REG - 1; + + devpriv->usb_tx_buf[0] = VMK8061_CMD_RD_AO; + + for (n = 0; n < insn->n; n++) { + if (vmk80xx_read_packet(dev)) + break; + + data[n] = devpriv->usb_rx_buf[reg + chan]; + } + + up(&devpriv->limit_sem); + + return n; +} + +static int vmk80xx_di_insn_bits(struct comedi_device *dev, + struct comedi_subdevice *s, + struct comedi_insn *insn, + unsigned int *data) +{ + struct vmk80xx_private *devpriv = dev->private; + unsigned char *rx_buf; + int reg; + int retval; + + down(&devpriv->limit_sem); + + rx_buf = devpriv->usb_rx_buf; + + if (devpriv->model == VMK8061_MODEL) { + reg = VMK8061_DI_REG; + devpriv->usb_tx_buf[0] = VMK8061_CMD_RD_DI; + } else { + reg = VMK8055_DI_REG; + } + + retval = vmk80xx_read_packet(dev); + + if (!retval) { + if (devpriv->model == VMK8055_MODEL) + data[1] = (((rx_buf[reg] >> 4) & 0x03) | + ((rx_buf[reg] << 2) & 0x04) | + ((rx_buf[reg] >> 3) & 0x18)); + else + data[1] = rx_buf[reg]; + + retval = 2; + } + + up(&devpriv->limit_sem); + + return retval; +} + +static int vmk80xx_do_insn_bits(struct comedi_device *dev, + struct comedi_subdevice *s, + struct comedi_insn *insn, + unsigned int *data) +{ + struct vmk80xx_private *devpriv = dev->private; + unsigned char *rx_buf = devpriv->usb_rx_buf; + unsigned char *tx_buf = devpriv->usb_tx_buf; + int reg, cmd; + int ret = 0; + + if (devpriv->model == VMK8061_MODEL) { + reg = VMK8061_DO_REG; + cmd = VMK8061_CMD_DO; + } else { /* VMK8055_MODEL */ + reg = VMK8055_DO_REG; + cmd = VMK8055_CMD_WRT_AD; + } + + down(&devpriv->limit_sem); + + if (comedi_dio_update_state(s, data)) { + tx_buf[reg] = s->state; + ret = vmk80xx_write_packet(dev, cmd); + if (ret) + goto out; + } + + if (devpriv->model == VMK8061_MODEL) { + tx_buf[0] = VMK8061_CMD_RD_DO; + ret = vmk80xx_read_packet(dev); + if (ret) + goto out; + data[1] = rx_buf[reg]; + } else { + data[1] = s->state; + } + +out: + up(&devpriv->limit_sem); + + return ret ? ret : insn->n; +} + +static int vmk80xx_cnt_insn_read(struct comedi_device *dev, + struct comedi_subdevice *s, + struct comedi_insn *insn, + unsigned int *data) +{ + struct vmk80xx_private *devpriv = dev->private; + int chan; + int reg[2]; + int n; + + down(&devpriv->limit_sem); + chan = CR_CHAN(insn->chanspec); + + switch (devpriv->model) { + case VMK8055_MODEL: + if (!chan) + reg[0] = VMK8055_CNT1_REG; + else + reg[0] = VMK8055_CNT2_REG; + break; + case VMK8061_MODEL: + default: + reg[0] = VMK8061_CNT_REG; + reg[1] = VMK8061_CNT_REG; + devpriv->usb_tx_buf[0] = VMK8061_CMD_RD_CNT; + break; + } + + for (n = 0; n < insn->n; n++) { + if (vmk80xx_read_packet(dev)) + break; + + if (devpriv->model == VMK8055_MODEL) + data[n] = devpriv->usb_rx_buf[reg[0]]; + else /* VMK8061_MODEL */ + data[n] = devpriv->usb_rx_buf[reg[0] * (chan + 1) + 1] + + 256 * devpriv->usb_rx_buf[reg[1] * 2 + 2]; + } + + up(&devpriv->limit_sem); + + return n; +} + +static int vmk80xx_cnt_insn_config(struct comedi_device *dev, + struct comedi_subdevice *s, + struct comedi_insn *insn, + unsigned int *data) +{ + struct vmk80xx_private *devpriv = dev->private; + unsigned int chan = CR_CHAN(insn->chanspec); + int cmd; + int reg; + int ret; + + down(&devpriv->limit_sem); + switch (data[0]) { + case INSN_CONFIG_RESET: + if (devpriv->model == VMK8055_MODEL) { + if (!chan) { + cmd = VMK8055_CMD_RST_CNT1; + reg = VMK8055_CNT1_REG; + } else { + cmd = VMK8055_CMD_RST_CNT2; + reg = VMK8055_CNT2_REG; + } + devpriv->usb_tx_buf[reg] = 0x00; + } else { + cmd = VMK8061_CMD_RST_CNT; + } + ret = vmk80xx_write_packet(dev, cmd); + break; + default: + ret = -EINVAL; + break; + } + up(&devpriv->limit_sem); + + return ret ? ret : insn->n; +} + +static int vmk80xx_cnt_insn_write(struct comedi_device *dev, + struct comedi_subdevice *s, + struct comedi_insn *insn, + unsigned int *data) +{ + struct vmk80xx_private *devpriv = dev->private; + unsigned long debtime; + unsigned long val; + int chan; + int cmd; + int n; + + down(&devpriv->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; + + /* TODO: Prevent overflows */ + if (debtime > 7450) + debtime = 7450; + + val = int_sqrt(debtime * 1000 / 115); + if (((val + 1) * val) < debtime * 1000 / 115) + val += 1; + + devpriv->usb_tx_buf[6 + chan] = val; + + if (vmk80xx_write_packet(dev, cmd)) + break; + } + + up(&devpriv->limit_sem); + + return n; +} + +static int vmk80xx_pwm_insn_read(struct comedi_device *dev, + struct comedi_subdevice *s, + struct comedi_insn *insn, + unsigned int *data) +{ + struct vmk80xx_private *devpriv = dev->private; + unsigned char *tx_buf; + unsigned char *rx_buf; + int reg[2]; + int n; + + down(&devpriv->limit_sem); + + tx_buf = devpriv->usb_tx_buf; + rx_buf = devpriv->usb_rx_buf; + + reg[0] = VMK8061_PWM_REG1; + reg[1] = VMK8061_PWM_REG2; + + tx_buf[0] = VMK8061_CMD_RD_PWM; + + for (n = 0; n < insn->n; n++) { + if (vmk80xx_read_packet(dev)) + break; + + data[n] = rx_buf[reg[0]] + 4 * rx_buf[reg[1]]; + } + + up(&devpriv->limit_sem); + + return n; +} + +static int vmk80xx_pwm_insn_write(struct comedi_device *dev, + struct comedi_subdevice *s, + struct comedi_insn *insn, + unsigned int *data) +{ + struct vmk80xx_private *devpriv = dev->private; + unsigned char *tx_buf; + int reg[2]; + int cmd; + int n; + + down(&devpriv->limit_sem); + + tx_buf = devpriv->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; + } + + up(&devpriv->limit_sem); + + return n; +} + +static int vmk80xx_find_usb_endpoints(struct comedi_device *dev) +{ + struct vmk80xx_private *devpriv = dev->private; + struct usb_interface *intf = comedi_to_usb_interface(dev); + struct usb_host_interface *iface_desc = intf->cur_altsetting; + struct usb_endpoint_descriptor *ep_desc; + int i; + + if (iface_desc->desc.bNumEndpoints != 2) + return -ENODEV; + + for (i = 0; i < iface_desc->desc.bNumEndpoints; i++) { + ep_desc = &iface_desc->endpoint[i].desc; + + if (usb_endpoint_is_int_in(ep_desc) || + usb_endpoint_is_bulk_in(ep_desc)) { + if (!devpriv->ep_rx) + devpriv->ep_rx = ep_desc; + continue; + } + + if (usb_endpoint_is_int_out(ep_desc) || + usb_endpoint_is_bulk_out(ep_desc)) { + if (!devpriv->ep_tx) + devpriv->ep_tx = ep_desc; + continue; + } + } + + if (!devpriv->ep_rx || !devpriv->ep_tx) + return -ENODEV; + + if (!usb_endpoint_maxp(devpriv->ep_rx) || !usb_endpoint_maxp(devpriv->ep_tx)) + return -EINVAL; + + return 0; +} + +static int vmk80xx_alloc_usb_buffers(struct comedi_device *dev) +{ + struct vmk80xx_private *devpriv = dev->private; + size_t size; + + size = usb_endpoint_maxp(devpriv->ep_rx); + devpriv->usb_rx_buf = kzalloc(size, GFP_KERNEL); + if (!devpriv->usb_rx_buf) + return -ENOMEM; + + size = usb_endpoint_maxp(devpriv->ep_tx); + devpriv->usb_tx_buf = kzalloc(size, GFP_KERNEL); + if (!devpriv->usb_tx_buf) + return -ENOMEM; + + return 0; +} + +static int vmk80xx_init_subdevices(struct comedi_device *dev) +{ + const struct vmk80xx_board *board = dev->board_ptr; + struct vmk80xx_private *devpriv = dev->private; + struct comedi_subdevice *s; + int n_subd; + int ret; + + down(&devpriv->limit_sem); + + if (devpriv->model == VMK8055_MODEL) + n_subd = 5; + else + n_subd = 6; + ret = comedi_alloc_subdevices(dev, n_subd); + if (ret) { + up(&devpriv->limit_sem); + return ret; + } + + /* Analog input subdevice */ + s = &dev->subdevices[0]; + s->type = COMEDI_SUBD_AI; + s->subdev_flags = SDF_READABLE | SDF_GROUND; + s->n_chan = board->ai_nchans; + s->maxdata = board->ai_maxdata; + s->range_table = board->range; + s->insn_read = vmk80xx_ai_insn_read; + + /* Analog output subdevice */ + s = &dev->subdevices[1]; + s->type = COMEDI_SUBD_AO; + s->subdev_flags = SDF_WRITABLE | SDF_GROUND; + s->n_chan = board->ao_nchans; + s->maxdata = 0x00ff; + s->range_table = board->range; + s->insn_write = vmk80xx_ao_insn_write; + if (devpriv->model == VMK8061_MODEL) { + s->subdev_flags |= SDF_READABLE; + s->insn_read = vmk80xx_ao_insn_read; + } + + /* Digital input subdevice */ + s = &dev->subdevices[2]; + s->type = COMEDI_SUBD_DI; + s->subdev_flags = SDF_READABLE; + s->n_chan = board->di_nchans; + s->maxdata = 1; + s->range_table = &range_digital; + s->insn_bits = vmk80xx_di_insn_bits; + + /* Digital output subdevice */ + s = &dev->subdevices[3]; + s->type = COMEDI_SUBD_DO; + s->subdev_flags = SDF_WRITABLE; + s->n_chan = 8; + s->maxdata = 1; + s->range_table = &range_digital; + s->insn_bits = vmk80xx_do_insn_bits; + + /* Counter subdevice */ + s = &dev->subdevices[4]; + s->type = COMEDI_SUBD_COUNTER; + s->subdev_flags = SDF_READABLE; + s->n_chan = 2; + s->maxdata = board->cnt_maxdata; + s->insn_read = vmk80xx_cnt_insn_read; + s->insn_config = vmk80xx_cnt_insn_config; + if (devpriv->model == VMK8055_MODEL) { + s->subdev_flags |= SDF_WRITABLE; + s->insn_write = vmk80xx_cnt_insn_write; + } + + /* PWM subdevice */ + if (devpriv->model == VMK8061_MODEL) { + s = &dev->subdevices[5]; + s->type = COMEDI_SUBD_PWM; + s->subdev_flags = SDF_READABLE | SDF_WRITABLE; + s->n_chan = board->pwm_nchans; + s->maxdata = board->pwm_maxdata; + s->insn_read = vmk80xx_pwm_insn_read; + s->insn_write = vmk80xx_pwm_insn_write; + } + + up(&devpriv->limit_sem); + + return 0; +} + +static int vmk80xx_auto_attach(struct comedi_device *dev, + unsigned long context) +{ + struct usb_interface *intf = comedi_to_usb_interface(dev); + const struct vmk80xx_board *board = NULL; + struct vmk80xx_private *devpriv; + int ret; + + if (context < ARRAY_SIZE(vmk80xx_boardinfo)) + board = &vmk80xx_boardinfo[context]; + if (!board) + return -ENODEV; + dev->board_ptr = board; + dev->board_name = board->name; + + devpriv = comedi_alloc_devpriv(dev, sizeof(*devpriv)); + if (!devpriv) + return -ENOMEM; + + devpriv->model = board->model; + + sema_init(&devpriv->limit_sem, 8); + + ret = vmk80xx_find_usb_endpoints(dev); + if (ret) + return ret; + + ret = vmk80xx_alloc_usb_buffers(dev); + if (ret) + return ret; + + usb_set_intfdata(intf, devpriv); + + if (devpriv->model == VMK8055_MODEL) + vmk80xx_reset_device(dev); + + return vmk80xx_init_subdevices(dev); +} + +static void vmk80xx_detach(struct comedi_device *dev) +{ + struct usb_interface *intf = comedi_to_usb_interface(dev); + struct vmk80xx_private *devpriv = dev->private; + + if (!devpriv) + return; + + down(&devpriv->limit_sem); + + usb_set_intfdata(intf, NULL); + + kfree(devpriv->usb_rx_buf); + kfree(devpriv->usb_tx_buf); + + up(&devpriv->limit_sem); +} + +static struct comedi_driver vmk80xx_driver = { + .module = THIS_MODULE, + .driver_name = "vmk80xx", + .auto_attach = vmk80xx_auto_attach, + .detach = vmk80xx_detach, +}; + +static int vmk80xx_usb_probe(struct usb_interface *intf, + const struct usb_device_id *id) +{ + return comedi_usb_auto_config(intf, &vmk80xx_driver, id->driver_info); +} + +static const struct usb_device_id vmk80xx_usb_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 }, + { } +}; +MODULE_DEVICE_TABLE(usb, vmk80xx_usb_id_table); + +static struct usb_driver vmk80xx_usb_driver = { + .name = "vmk80xx", + .id_table = vmk80xx_usb_id_table, + .probe = vmk80xx_usb_probe, + .disconnect = comedi_usb_auto_unconfig, +}; +module_comedi_usb_driver(vmk80xx_driver, vmk80xx_usb_driver); + +MODULE_AUTHOR("Manuel Gebele <forensixs@gmx.de>"); +MODULE_DESCRIPTION("Velleman USB Board Low-Level Driver"); +MODULE_LICENSE("GPL"); |