diff options
Diffstat (limited to 'drivers/staging/comedi/drivers/adl_pci7x3x.c')
-rw-r--r-- | drivers/staging/comedi/drivers/adl_pci7x3x.c | 542 |
1 files changed, 0 insertions, 542 deletions
diff --git a/drivers/staging/comedi/drivers/adl_pci7x3x.c b/drivers/staging/comedi/drivers/adl_pci7x3x.c deleted file mode 100644 index 8fc45638ff59..000000000000 --- a/drivers/staging/comedi/drivers/adl_pci7x3x.c +++ /dev/null @@ -1,542 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0+ -/* - * COMEDI driver for the ADLINK PCI-723x/743x series boards. - * Copyright (C) 2012 H Hartley Sweeten <hsweeten@visionengravers.com> - * - * Based on the adl_pci7230 driver written by: - * David Fernandez <dfcastelao@gmail.com> - * and the adl_pci7432 driver written by: - * Michel Lachaine <mike@mikelachaine.ca> - * - * COMEDI - Linux Control and Measurement Device Interface - * Copyright (C) 2000 David A. Schleef <ds@schleef.org> - */ - -/* - * Driver: adl_pci7x3x - * Description: 32/64-Channel Isolated Digital I/O Boards - * Devices: [ADLink] PCI-7230 (adl_pci7230), PCI-7233 (adl_pci7233), - * PCI-7234 (adl_pci7234), PCI-7432 (adl_pci7432), PCI-7433 (adl_pci7433), - * PCI-7434 (adl_pci7434) - * Author: H Hartley Sweeten <hsweeten@visionengravers.com> - * Updated: Fri, 20 Nov 2020 14:49:36 +0000 - * Status: works (tested on PCI-7230) - * - * One or two subdevices are setup by this driver depending on - * the number of digital inputs and/or outputs provided by the - * board. Each subdevice has a maximum of 32 channels. - * - * PCI-7230 - 4 subdevices: 0 - 16 input, 1 - 16 output, - * 2 - IRQ_IDI0, 3 - IRQ_IDI1 - * PCI-7233 - 1 subdevice: 0 - 32 input - * PCI-7234 - 1 subdevice: 0 - 32 output - * PCI-7432 - 2 subdevices: 0 - 32 input, 1 - 32 output - * PCI-7433 - 2 subdevices: 0 - 32 input, 1 - 32 input - * PCI-7434 - 2 subdevices: 0 - 32 output, 1 - 32 output - * - * The PCI-7230, PCI-7432 and PCI-7433 boards also support external - * interrupt signals on digital input channels 0 and 1. The PCI-7233 - * has dual-interrupt sources for change-of-state (COS) on any 16 - * digital input channels of LSB and for COS on any 16 digital input - * lines of MSB. - * - * Currently, this driver only supports interrupts for PCI-7230. - * - * Configuration Options: not applicable, uses comedi PCI auto config - */ - -#include <linux/module.h> - -#include "../comedi_pci.h" - -#include "plx9052.h" - -/* - * Register I/O map (32-bit access only) - */ -#define PCI7X3X_DIO_REG 0x0000 /* in the DigIO Port area */ -#define PCI743X_DIO_REG 0x0004 - -#define ADL_PT_CLRIRQ 0x0040 /* in the DigIO Port area */ - -#define LINTI1_EN_ACT_IDI0 (PLX9052_INTCSR_LI1ENAB | PLX9052_INTCSR_LI1STAT) -#define LINTI2_EN_ACT_IDI1 (PLX9052_INTCSR_LI2ENAB | PLX9052_INTCSR_LI2STAT) -#define EN_PCI_LINT2H_LINT1H \ - (PLX9052_INTCSR_PCIENAB | PLX9052_INTCSR_LI2POL | PLX9052_INTCSR_LI1POL) - -enum adl_pci7x3x_boardid { - BOARD_PCI7230, - BOARD_PCI7233, - BOARD_PCI7234, - BOARD_PCI7432, - BOARD_PCI7433, - BOARD_PCI7434, -}; - -struct adl_pci7x3x_boardinfo { - const char *name; - int nsubdevs; - int di_nchan; - int do_nchan; - int irq_nchan; -}; - -static const struct adl_pci7x3x_boardinfo adl_pci7x3x_boards[] = { - [BOARD_PCI7230] = { - .name = "adl_pci7230", - .nsubdevs = 4, /* IDI, IDO, IRQ_IDI0, IRQ_IDI1 */ - .di_nchan = 16, - .do_nchan = 16, - .irq_nchan = 2, - }, - [BOARD_PCI7233] = { - .name = "adl_pci7233", - .nsubdevs = 1, - .di_nchan = 32, - }, - [BOARD_PCI7234] = { - .name = "adl_pci7234", - .nsubdevs = 1, - .do_nchan = 32, - }, - [BOARD_PCI7432] = { - .name = "adl_pci7432", - .nsubdevs = 2, - .di_nchan = 32, - .do_nchan = 32, - }, - [BOARD_PCI7433] = { - .name = "adl_pci7433", - .nsubdevs = 2, - .di_nchan = 64, - }, - [BOARD_PCI7434] = { - .name = "adl_pci7434", - .nsubdevs = 2, - .do_nchan = 64, - } -}; - -struct adl_pci7x3x_dev_private_data { - unsigned long lcr_io_base; - unsigned int int_ctrl; -}; - -struct adl_pci7x3x_sd_private_data { - spinlock_t subd_slock; /* spin-lock for cmd_running */ - unsigned long port_offset; - short int cmd_running; -}; - -static void process_irq(struct comedi_device *dev, unsigned int subdev, - unsigned short intcsr) -{ - struct comedi_subdevice *s = &dev->subdevices[subdev]; - struct adl_pci7x3x_sd_private_data *sd_priv = s->private; - unsigned long reg = sd_priv->port_offset; - struct comedi_async *async_p = s->async; - - if (async_p) { - unsigned short val = inw(dev->iobase + reg); - - spin_lock(&sd_priv->subd_slock); - if (sd_priv->cmd_running) - comedi_buf_write_samples(s, &val, 1); - spin_unlock(&sd_priv->subd_slock); - comedi_handle_events(dev, s); - } -} - -static irqreturn_t adl_pci7x3x_interrupt(int irq, void *p_device) -{ - struct comedi_device *dev = p_device; - struct adl_pci7x3x_dev_private_data *dev_private = dev->private; - unsigned long cpu_flags; - unsigned int intcsr; - bool li1stat, li2stat; - - if (!dev->attached) { - /* Ignore interrupt before device fully attached. */ - /* Might not even have allocated subdevices yet! */ - return IRQ_NONE; - } - - /* Check if we are source of interrupt */ - spin_lock_irqsave(&dev->spinlock, cpu_flags); - intcsr = inl(dev_private->lcr_io_base + PLX9052_INTCSR); - li1stat = (intcsr & LINTI1_EN_ACT_IDI0) == LINTI1_EN_ACT_IDI0; - li2stat = (intcsr & LINTI2_EN_ACT_IDI1) == LINTI2_EN_ACT_IDI1; - if (li1stat || li2stat) { - /* clear all current interrupt flags */ - /* Fixme: Reset all 2 Int Flags */ - outb(0x00, dev->iobase + ADL_PT_CLRIRQ); - } - spin_unlock_irqrestore(&dev->spinlock, cpu_flags); - - /* SubDev 2, 3 = Isolated DigIn , on "SCSI2" jack!*/ - - if (li1stat) /* 0x0005 LINTi1 is Enabled && IDI0 is 1 */ - process_irq(dev, 2, intcsr); - - if (li2stat) /* 0x0028 LINTi2 is Enabled && IDI1 is 1 */ - process_irq(dev, 3, intcsr); - - return IRQ_RETVAL(li1stat || li2stat); -} - -static int adl_pci7x3x_asy_cmdtest(struct comedi_device *dev, - struct comedi_subdevice *s, - struct comedi_cmd *cmd) -{ - int err = 0; - - /* Step 1 : check if triggers are trivially valid */ - - err |= comedi_check_trigger_src(&cmd->start_src, TRIG_NOW); - err |= comedi_check_trigger_src(&cmd->scan_begin_src, TRIG_EXT); - err |= comedi_check_trigger_src(&cmd->convert_src, TRIG_FOLLOW); - err |= comedi_check_trigger_src(&cmd->scan_end_src, TRIG_COUNT); - err |= comedi_check_trigger_src(&cmd->stop_src, TRIG_NONE); - - if (err) - return 1; - - /* Step 2a : make sure trigger sources are unique */ - /* Step 2b : and mutually compatible */ - - /* Step 3: check if arguments are trivially valid */ - - err |= comedi_check_trigger_arg_is(&cmd->start_arg, 0); - err |= comedi_check_trigger_arg_is(&cmd->scan_begin_arg, 0); - err |= comedi_check_trigger_arg_is(&cmd->convert_arg, 0); - err |= comedi_check_trigger_arg_is(&cmd->scan_end_arg, - cmd->chanlist_len); - err |= comedi_check_trigger_arg_is(&cmd->stop_arg, 0); - - if (err) - return 3; - - /* Step 4: fix up any arguments */ - - /* Step 5: check channel list if it exists */ - - return 0; -} - -static int adl_pci7x3x_asy_cmd(struct comedi_device *dev, - struct comedi_subdevice *s) -{ - struct adl_pci7x3x_dev_private_data *dev_private = dev->private; - struct adl_pci7x3x_sd_private_data *sd_priv = s->private; - unsigned long cpu_flags; - unsigned int int_enab; - - if (s->index == 2) { - /* enable LINTi1 == IDI sdi[0] Ch 0 IRQ ActHigh */ - int_enab = PLX9052_INTCSR_LI1ENAB; - } else { - /* enable LINTi2 == IDI sdi[0] Ch 1 IRQ ActHigh */ - int_enab = PLX9052_INTCSR_LI2ENAB; - } - - spin_lock_irqsave(&dev->spinlock, cpu_flags); - dev_private->int_ctrl |= int_enab; - outl(dev_private->int_ctrl, dev_private->lcr_io_base + PLX9052_INTCSR); - spin_unlock_irqrestore(&dev->spinlock, cpu_flags); - - spin_lock_irqsave(&sd_priv->subd_slock, cpu_flags); - sd_priv->cmd_running = 1; - spin_unlock_irqrestore(&sd_priv->subd_slock, cpu_flags); - - return 0; -} - -static int adl_pci7x3x_asy_cancel(struct comedi_device *dev, - struct comedi_subdevice *s) -{ - struct adl_pci7x3x_dev_private_data *dev_private = dev->private; - struct adl_pci7x3x_sd_private_data *sd_priv = s->private; - unsigned long cpu_flags; - unsigned int int_enab; - - spin_lock_irqsave(&sd_priv->subd_slock, cpu_flags); - sd_priv->cmd_running = 0; - spin_unlock_irqrestore(&sd_priv->subd_slock, cpu_flags); - /* disable Interrupts */ - if (s->index == 2) - int_enab = PLX9052_INTCSR_LI1ENAB; - else - int_enab = PLX9052_INTCSR_LI2ENAB; - spin_lock_irqsave(&dev->spinlock, cpu_flags); - dev_private->int_ctrl &= ~int_enab; - outl(dev_private->int_ctrl, dev_private->lcr_io_base + PLX9052_INTCSR); - spin_unlock_irqrestore(&dev->spinlock, cpu_flags); - - return 0; -} - -/* same as _di_insn_bits because the IRQ-pins are the DI-ports */ -static int adl_pci7x3x_dirq_insn_bits(struct comedi_device *dev, - struct comedi_subdevice *s, - struct comedi_insn *insn, - unsigned int *data) -{ - struct adl_pci7x3x_sd_private_data *sd_priv = s->private; - unsigned long reg = (unsigned long)sd_priv->port_offset; - - data[1] = inl(dev->iobase + reg); - - return insn->n; -} - -static int adl_pci7x3x_do_insn_bits(struct comedi_device *dev, - struct comedi_subdevice *s, - struct comedi_insn *insn, - unsigned int *data) -{ - unsigned long reg = (unsigned long)s->private; - - if (comedi_dio_update_state(s, data)) { - unsigned int val = s->state; - - if (s->n_chan == 16) { - /* - * It seems the PCI-7230 needs the 16-bit DO state - * to be shifted left by 16 bits before being written - * to the 32-bit register. Set the value in both - * halves of the register to be sure. - */ - val |= val << 16; - } - outl(val, dev->iobase + reg); - } - - data[1] = s->state; - - return insn->n; -} - -static int adl_pci7x3x_di_insn_bits(struct comedi_device *dev, - struct comedi_subdevice *s, - struct comedi_insn *insn, - unsigned int *data) -{ - unsigned long reg = (unsigned long)s->private; - - data[1] = inl(dev->iobase + reg); - - return insn->n; -} - -static int adl_pci7x3x_reset(struct comedi_device *dev) -{ - struct adl_pci7x3x_dev_private_data *dev_private = dev->private; - - /* disable Interrupts */ - dev_private->int_ctrl = 0x00; /* Disable PCI + LINTi2 + LINTi1 */ - outl(dev_private->int_ctrl, dev_private->lcr_io_base + PLX9052_INTCSR); - - return 0; -} - -static int adl_pci7x3x_auto_attach(struct comedi_device *dev, - unsigned long context) -{ - struct pci_dev *pcidev = comedi_to_pci_dev(dev); - const struct adl_pci7x3x_boardinfo *board = NULL; - struct comedi_subdevice *s; - struct adl_pci7x3x_dev_private_data *dev_private; - int subdev; - int nchan; - int ret; - int ic; - - if (context < ARRAY_SIZE(adl_pci7x3x_boards)) - board = &adl_pci7x3x_boards[context]; - if (!board) - return -ENODEV; - dev->board_ptr = board; - dev->board_name = board->name; - - dev_private = comedi_alloc_devpriv(dev, sizeof(*dev_private)); - if (!dev_private) - return -ENOMEM; - - ret = comedi_pci_enable(dev); - if (ret) - return ret; - dev->iobase = pci_resource_start(pcidev, 2); - dev_private->lcr_io_base = pci_resource_start(pcidev, 1); - - adl_pci7x3x_reset(dev); - - if (board->irq_nchan) { - /* discard all evtl. old IRQs */ - outb(0x00, dev->iobase + ADL_PT_CLRIRQ); - - if (pcidev->irq) { - ret = request_irq(pcidev->irq, adl_pci7x3x_interrupt, - IRQF_SHARED, dev->board_name, dev); - if (ret == 0) { - dev->irq = pcidev->irq; - /* 0x52 PCI + IDI Ch 1 Ch 0 IRQ Off ActHigh */ - dev_private->int_ctrl = EN_PCI_LINT2H_LINT1H; - outl(dev_private->int_ctrl, - dev_private->lcr_io_base + PLX9052_INTCSR); - } - } - } - - ret = comedi_alloc_subdevices(dev, board->nsubdevs); - if (ret) - return ret; - - subdev = 0; - - if (board->di_nchan) { - nchan = min(board->di_nchan, 32); - - s = &dev->subdevices[subdev]; - /* Isolated digital inputs 0 to 15/31 */ - s->type = COMEDI_SUBD_DI; - s->subdev_flags = SDF_READABLE; - s->n_chan = nchan; - s->maxdata = 1; - s->insn_bits = adl_pci7x3x_di_insn_bits; - s->range_table = &range_digital; - - s->private = (void *)PCI7X3X_DIO_REG; - - subdev++; - - nchan = board->di_nchan - nchan; - if (nchan) { - s = &dev->subdevices[subdev]; - /* Isolated digital inputs 32 to 63 */ - s->type = COMEDI_SUBD_DI; - s->subdev_flags = SDF_READABLE; - s->n_chan = nchan; - s->maxdata = 1; - s->insn_bits = adl_pci7x3x_di_insn_bits; - s->range_table = &range_digital; - - s->private = (void *)PCI743X_DIO_REG; - - subdev++; - } - } - - if (board->do_nchan) { - nchan = min(board->do_nchan, 32); - - s = &dev->subdevices[subdev]; - /* Isolated digital outputs 0 to 15/31 */ - s->type = COMEDI_SUBD_DO; - s->subdev_flags = SDF_WRITABLE; - s->n_chan = nchan; - s->maxdata = 1; - s->insn_bits = adl_pci7x3x_do_insn_bits; - s->range_table = &range_digital; - - s->private = (void *)PCI7X3X_DIO_REG; - - subdev++; - - nchan = board->do_nchan - nchan; - if (nchan) { - s = &dev->subdevices[subdev]; - /* Isolated digital outputs 32 to 63 */ - s->type = COMEDI_SUBD_DO; - s->subdev_flags = SDF_WRITABLE; - s->n_chan = nchan; - s->maxdata = 1; - s->insn_bits = adl_pci7x3x_do_insn_bits; - s->range_table = &range_digital; - - s->private = (void *)PCI743X_DIO_REG; - - subdev++; - } - } - - for (ic = 0; ic < board->irq_nchan; ++ic) { - struct adl_pci7x3x_sd_private_data *sd_priv; - - nchan = 1; - - s = &dev->subdevices[subdev]; - /* Isolated digital inputs 0 or 1 */ - s->type = COMEDI_SUBD_DI; - s->subdev_flags = SDF_READABLE; - s->n_chan = nchan; - s->maxdata = 1; - s->insn_bits = adl_pci7x3x_dirq_insn_bits; - s->range_table = &range_digital; - - sd_priv = comedi_alloc_spriv(s, sizeof(*sd_priv)); - if (!sd_priv) - return -ENOMEM; - - spin_lock_init(&sd_priv->subd_slock); - sd_priv->port_offset = PCI7X3X_DIO_REG; - sd_priv->cmd_running = 0; - - if (dev->irq) { - dev->read_subdev = s; - s->type = COMEDI_SUBD_DI; - s->subdev_flags = SDF_READABLE | SDF_CMD_READ; - s->len_chanlist = 1; - s->do_cmdtest = adl_pci7x3x_asy_cmdtest; - s->do_cmd = adl_pci7x3x_asy_cmd; - s->cancel = adl_pci7x3x_asy_cancel; - } - - subdev++; - } - - return 0; -} - -static void adl_pci7x3x_detach(struct comedi_device *dev) -{ - if (dev->iobase) - adl_pci7x3x_reset(dev); - comedi_pci_detach(dev); -} - -static struct comedi_driver adl_pci7x3x_driver = { - .driver_name = "adl_pci7x3x", - .module = THIS_MODULE, - .auto_attach = adl_pci7x3x_auto_attach, - .detach = adl_pci7x3x_detach, -}; - -static int adl_pci7x3x_pci_probe(struct pci_dev *dev, - const struct pci_device_id *id) -{ - return comedi_pci_auto_config(dev, &adl_pci7x3x_driver, - id->driver_data); -} - -static const struct pci_device_id adl_pci7x3x_pci_table[] = { - { PCI_VDEVICE(ADLINK, 0x7230), BOARD_PCI7230 }, - { PCI_VDEVICE(ADLINK, 0x7233), BOARD_PCI7233 }, - { PCI_VDEVICE(ADLINK, 0x7234), BOARD_PCI7234 }, - { PCI_VDEVICE(ADLINK, 0x7432), BOARD_PCI7432 }, - { PCI_VDEVICE(ADLINK, 0x7433), BOARD_PCI7433 }, - { PCI_VDEVICE(ADLINK, 0x7434), BOARD_PCI7434 }, - { 0 } -}; -MODULE_DEVICE_TABLE(pci, adl_pci7x3x_pci_table); - -static struct pci_driver adl_pci7x3x_pci_driver = { - .name = "adl_pci7x3x", - .id_table = adl_pci7x3x_pci_table, - .probe = adl_pci7x3x_pci_probe, - .remove = comedi_pci_auto_unconfig, -}; -module_comedi_pci_driver(adl_pci7x3x_driver, adl_pci7x3x_pci_driver); - -MODULE_DESCRIPTION("ADLINK PCI-723x/743x Isolated Digital I/O boards"); -MODULE_AUTHOR("H Hartley Sweeten <hsweeten@visionengravers.com>"); -MODULE_LICENSE("GPL"); |