// SPDX-License-Identifier: GPL-2.0+ /* * gsc_hpdi.c * Comedi driver the General Standards Corporation * High Speed Parallel Digital Interface rs485 boards. * * Author: Frank Mori Hess <[email protected]> * Copyright (C) 2003 Coherent Imaging Systems * * COMEDI - Linux Control and Measurement Device Interface * Copyright (C) 1997-8 David A. Schleef <[email protected]> */ /* * Driver: gsc_hpdi * Description: General Standards Corporation High * Speed Parallel Digital Interface rs485 boards * Author: Frank Mori Hess <[email protected]> * Status: only receive mode works, transmit not supported * Updated: Thu, 01 Nov 2012 16:17:38 +0000 * Devices: [General Standards Corporation] PCI-HPDI32 (gsc_hpdi), * PMC-HPDI32 * * Configuration options: * None. * * Manual configuration of supported devices is not supported; they are * configured automatically. * * There are some additional hpdi models available from GSC for which * support could be added to this driver. */ #include <linux/module.h> #include <linux/delay.h> #include <linux/interrupt.h> #include <linux/comedi/comedi_pci.h> #include "plx9080.h" /* * PCI BAR2 Register map (dev->mmio) */ #define FIRMWARE_REV_REG … #define FEATURES_REG_PRESENT_BIT … #define BOARD_CONTROL_REG … #define BOARD_RESET_BIT … #define TX_FIFO_RESET_BIT … #define RX_FIFO_RESET_BIT … #define TX_ENABLE_BIT … #define RX_ENABLE_BIT … #define DEMAND_DMA_DIRECTION_TX_BIT … #define LINE_VALID_ON_STATUS_VALID_BIT … #define START_TX_BIT … #define CABLE_THROTTLE_ENABLE_BIT … #define TEST_MODE_ENABLE_BIT … #define BOARD_STATUS_REG … #define COMMAND_LINE_STATUS_MASK … #define TX_IN_PROGRESS_BIT … #define TX_NOT_EMPTY_BIT … #define TX_NOT_ALMOST_EMPTY_BIT … #define TX_NOT_ALMOST_FULL_BIT … #define TX_NOT_FULL_BIT … #define RX_NOT_EMPTY_BIT … #define RX_NOT_ALMOST_EMPTY_BIT … #define RX_NOT_ALMOST_FULL_BIT … #define RX_NOT_FULL_BIT … #define BOARD_JUMPER0_INSTALLED_BIT … #define BOARD_JUMPER1_INSTALLED_BIT … #define TX_OVERRUN_BIT … #define RX_UNDERRUN_BIT … #define RX_OVERRUN_BIT … #define TX_PROG_ALMOST_REG … #define RX_PROG_ALMOST_REG … #define ALMOST_EMPTY_BITS(x) … #define ALMOST_FULL_BITS(x) … #define FEATURES_REG … #define FIFO_SIZE_PRESENT_BIT … #define FIFO_WORDS_PRESENT_BIT … #define LEVEL_EDGE_INTERRUPTS_PRESENT_BIT … #define GPIO_SUPPORTED_BIT … #define PLX_DMA_CH1_SUPPORTED_BIT … #define OVERRUN_UNDERRUN_SUPPORTED_BIT … #define FIFO_REG … #define TX_STATUS_COUNT_REG … #define TX_LINE_VALID_COUNT_REG … #define TX_LINE_INVALID_COUNT_REG … #define RX_STATUS_COUNT_REG … #define RX_LINE_COUNT_REG … #define INTERRUPT_CONTROL_REG … #define FRAME_VALID_START_INTR … #define FRAME_VALID_END_INTR … #define TX_FIFO_EMPTY_INTR … #define TX_FIFO_ALMOST_EMPTY_INTR … #define TX_FIFO_ALMOST_FULL_INTR … #define TX_FIFO_FULL_INTR … #define RX_EMPTY_INTR … #define RX_ALMOST_EMPTY_INTR … #define RX_ALMOST_FULL_INTR … #define RX_FULL_INTR … #define INTERRUPT_STATUS_REG … #define TX_CLOCK_DIVIDER_REG … #define TX_FIFO_SIZE_REG … #define RX_FIFO_SIZE_REG … #define FIFO_SIZE_MASK … #define TX_FIFO_WORDS_REG … #define RX_FIFO_WORDS_REG … #define INTERRUPT_EDGE_LEVEL_REG … #define INTERRUPT_POLARITY_REG … #define TIMER_BASE … #define DMA_BUFFER_SIZE … #define NUM_DMA_BUFFERS … #define NUM_DMA_DESCRIPTORS … struct hpdi_private { … }; static void gsc_hpdi_drain_dma(struct comedi_device *dev, unsigned int channel) { … } static irqreturn_t gsc_hpdi_interrupt(int irq, void *d) { … } static void gsc_hpdi_abort_dma(struct comedi_device *dev, unsigned int channel) { … } static int gsc_hpdi_cancel(struct comedi_device *dev, struct comedi_subdevice *s) { … } static int gsc_hpdi_cmd(struct comedi_device *dev, struct comedi_subdevice *s) { … } static int gsc_hpdi_check_chanlist(struct comedi_device *dev, struct comedi_subdevice *s, struct comedi_cmd *cmd) { … } static int gsc_hpdi_cmd_test(struct comedi_device *dev, struct comedi_subdevice *s, struct comedi_cmd *cmd) { … } /* setup dma descriptors so a link completes every 'len' bytes */ static int gsc_hpdi_setup_dma_descriptors(struct comedi_device *dev, unsigned int len) { … } static int gsc_hpdi_dio_insn_config(struct comedi_device *dev, struct comedi_subdevice *s, struct comedi_insn *insn, unsigned int *data) { … } static void gsc_hpdi_free_dma(struct comedi_device *dev) { … } static int gsc_hpdi_init(struct comedi_device *dev) { … } static void gsc_hpdi_init_plx9080(struct comedi_device *dev) { … } static int gsc_hpdi_auto_attach(struct comedi_device *dev, unsigned long context_unused) { … } static void gsc_hpdi_detach(struct comedi_device *dev) { … } static struct comedi_driver gsc_hpdi_driver = …; static int gsc_hpdi_pci_probe(struct pci_dev *dev, const struct pci_device_id *id) { … } static const struct pci_device_id gsc_hpdi_pci_table[] = …; MODULE_DEVICE_TABLE(pci, gsc_hpdi_pci_table); static struct pci_driver gsc_hpdi_pci_driver = …; module_comedi_pci_driver(…); MODULE_AUTHOR(…) …; MODULE_DESCRIPTION(…) …; MODULE_LICENSE(…) …;
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