// SPDX-License-Identifier: GPL-2.0+ /* * Hardware driver for NI 660x devices */ /* * Driver: ni_660x * Description: National Instruments 660x counter/timer boards * Devices: [National Instruments] PCI-6601 (ni_660x), PCI-6602, PXI-6602, * PCI-6608, PXI-6608, PCI-6624, PXI-6624 * Author: J.P. Mellor <[email protected]>, * [email protected], * [email protected], * [email protected], * Frank Mori Hess <[email protected]> * Updated: Mon, 16 Jan 2017 14:00:43 +0000 * Status: experimental * * Encoders work. PulseGeneration (both single pulse and pulse train) * works. Buffered commands work for input but not output. * * References: * DAQ 660x Register-Level Programmer Manual (NI 370505A-01) * DAQ 6601/6602 User Manual (NI 322137B-01) */ #include <linux/module.h> #include <linux/interrupt.h> #include <linux/comedi/comedi_pci.h> #include "mite.h" #include "ni_tio.h" #include "ni_routes.h" /* See Register-Level Programmer Manual page 3.1 */ enum ni_660x_register { … }; #define NI660X_CLK_CFG_COUNTER_SWAP … #define NI660X_GLOBAL_INT_COUNTER0 … #define NI660X_GLOBAL_INT_COUNTER1 … #define NI660X_GLOBAL_INT_COUNTER2 … #define NI660X_GLOBAL_INT_COUNTER3 … #define NI660X_GLOBAL_INT_CASCADE … #define NI660X_GLOBAL_INT_GLOBAL_POL … #define NI660X_GLOBAL_INT_GLOBAL … #define NI660X_DMA_CFG_SEL(_c, _s) … #define NI660X_DMA_CFG_SEL_MASK(_c) … #define NI660X_DMA_CFG_SEL_NONE(_c) … #define NI660X_DMA_CFG_RESET(_c) … #define NI660X_IO_CFG(x) … #define NI660X_IO_CFG_OUT_SEL(_c, _s) … #define NI660X_IO_CFG_OUT_SEL_MASK(_c) … #define NI660X_IO_CFG_IN_SEL(_c, _s) … #define NI660X_IO_CFG_IN_SEL_MASK(_c) … struct ni_660x_register_data { … }; static const struct ni_660x_register_data ni_660x_reg_data[NI660X_NUM_REGS] = …; #define NI660X_CHIP_OFFSET … enum ni_660x_boardid { … }; struct ni_660x_board { … }; static const struct ni_660x_board ni_660x_boards[] = …; #define NI660X_NUM_PFI_CHANNELS … /* there are only up to 3 dma channels, but the register layout allows for 4 */ #define NI660X_MAX_DMA_CHANNEL … #define NI660X_COUNTERS_PER_CHIP … #define NI660X_MAX_CHIPS … #define NI660X_MAX_COUNTERS … struct ni_660x_private { … }; static void ni_660x_write(struct comedi_device *dev, unsigned int chip, unsigned int bits, unsigned int reg) { … } static unsigned int ni_660x_read(struct comedi_device *dev, unsigned int chip, unsigned int reg) { … } static void ni_660x_gpct_write(struct ni_gpct *counter, unsigned int bits, enum ni_gpct_register reg) { … } static unsigned int ni_660x_gpct_read(struct ni_gpct *counter, enum ni_gpct_register reg) { … } static inline void ni_660x_set_dma_channel(struct comedi_device *dev, unsigned int mite_channel, struct ni_gpct *counter) { … } static inline void ni_660x_unset_dma_channel(struct comedi_device *dev, unsigned int mite_channel, struct ni_gpct *counter) { … } static int ni_660x_request_mite_channel(struct comedi_device *dev, struct ni_gpct *counter, enum comedi_io_direction direction) { … } static void ni_660x_release_mite_channel(struct comedi_device *dev, struct ni_gpct *counter) { … } static int ni_660x_cmd(struct comedi_device *dev, struct comedi_subdevice *s) { … } static int ni_660x_cancel(struct comedi_device *dev, struct comedi_subdevice *s) { … } static void set_tio_counterswap(struct comedi_device *dev, int chip) { … } static void ni_660x_handle_gpct_interrupt(struct comedi_device *dev, struct comedi_subdevice *s) { … } static irqreturn_t ni_660x_interrupt(int irq, void *d) { … } static int ni_660x_input_poll(struct comedi_device *dev, struct comedi_subdevice *s) { … } static int ni_660x_buf_change(struct comedi_device *dev, struct comedi_subdevice *s) { … } static int ni_660x_allocate_private(struct comedi_device *dev) { … } static int ni_660x_alloc_mite_rings(struct comedi_device *dev) { … } static void ni_660x_free_mite_rings(struct comedi_device *dev) { … } static int ni_660x_dio_insn_bits(struct comedi_device *dev, struct comedi_subdevice *s, struct comedi_insn *insn, unsigned int *data) { … } static void ni_660x_select_pfi_output(struct comedi_device *dev, unsigned int chan, unsigned int out_sel) { … } static void ni_660x_set_pfi_direction(struct comedi_device *dev, unsigned int chan, unsigned int direction) { … } static unsigned int ni_660x_get_pfi_direction(struct comedi_device *dev, unsigned int chan) { … } static int ni_660x_set_pfi_routing(struct comedi_device *dev, unsigned int chan, unsigned int source) { … } static int ni_660x_get_pfi_routing(struct comedi_device *dev, unsigned int chan) { … } static void ni_660x_set_pfi_filter(struct comedi_device *dev, unsigned int chan, unsigned int value) { … } static int ni_660x_dio_insn_config(struct comedi_device *dev, struct comedi_subdevice *s, struct comedi_insn *insn, unsigned int *data) { … } static unsigned int _ni_get_valid_routes(struct comedi_device *dev, unsigned int n_pairs, unsigned int *pair_data) { … } /* * Retrieves the current source of the output selector for the given * destination. If the terminal for the destination is not already configured * as an output, this function returns -EINVAL as error. * * Return: The register value of the destination output selector; * -EINVAL if terminal is not configured for output. */ static inline int get_output_select_source(int dest, struct comedi_device *dev) { … } /* * Test a route: * * Return: -1 if not connectible; * 0 if connectible and not connected; * 1 if connectible and connected. */ static inline int test_route(unsigned int src, unsigned int dest, struct comedi_device *dev) { … } /* Connect the actual route. */ static inline int connect_route(unsigned int src, unsigned int dest, struct comedi_device *dev) { … } static inline int disconnect_route(unsigned int src, unsigned int dest, struct comedi_device *dev) { … } static int ni_global_insn_config(struct comedi_device *dev, struct comedi_insn *insn, unsigned int *data) { … } static void ni_660x_init_tio_chips(struct comedi_device *dev, unsigned int n_chips) { … } static int ni_660x_auto_attach(struct comedi_device *dev, unsigned long context) { … } static void ni_660x_detach(struct comedi_device *dev) { … } static struct comedi_driver ni_660x_driver = …; static int ni_660x_pci_probe(struct pci_dev *dev, const struct pci_device_id *id) { … } static const struct pci_device_id ni_660x_pci_table[] = …; MODULE_DEVICE_TABLE(pci, ni_660x_pci_table); static struct pci_driver ni_660x_pci_driver = …; module_comedi_pci_driver(…); MODULE_AUTHOR(…) …; MODULE_DESCRIPTION(…) …; MODULE_LICENSE(…) …;
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