// SPDX-License-Identifier: GPL-2.0 /* * comedi/drivers/adl_pci9118.c * * hardware driver for ADLink cards: * card: PCI-9118DG, PCI-9118HG, PCI-9118HR * driver: pci9118dg, pci9118hg, pci9118hr * * Author: Michal Dobes <[email protected]> * */ /* * Driver: adl_pci9118 * Description: Adlink PCI-9118DG, PCI-9118HG, PCI-9118HR * Author: Michal Dobes <[email protected]> * Devices: [ADLink] PCI-9118DG (pci9118dg), PCI-9118HG (pci9118hg), * PCI-9118HR (pci9118hr) * Status: works * * This driver supports AI, AO, DI and DO subdevices. * AI subdevice supports cmd and insn interface, * other subdevices support only insn interface. * For AI: * - If cmd->scan_begin_src=TRIG_EXT then trigger input is TGIN (pin 46). * - If cmd->convert_src=TRIG_EXT then trigger input is EXTTRG (pin 44). * - If cmd->start_src/stop_src=TRIG_EXT then trigger input is TGIN (pin 46). * - It is not necessary to have cmd.scan_end_arg=cmd.chanlist_len but * cmd.scan_end_arg modulo cmd.chanlist_len must by 0. * - If return value of cmdtest is 5 then you've bad channel list * (it isn't possible mixture S.E. and DIFF inputs or bipolar and unipolar * ranges). * * There are some hardware limitations: * a) You cann't use mixture of unipolar/bipoar ranges or differencial/single * ended inputs. * b) DMA transfers must have the length aligned to two samples (32 bit), * so there is some problems if cmd->chanlist_len is odd. This driver tries * bypass this with adding one sample to the end of the every scan and discard * it on output but this can't be used if cmd->scan_begin_src=TRIG_FOLLOW * and is used flag CMDF_WAKE_EOS, then driver switch to interrupt driven mode * with interrupt after every sample. * c) If isn't used DMA then you can use only mode where * cmd->scan_begin_src=TRIG_FOLLOW. * * Configuration options: * [0] - PCI bus of device (optional) * [1] - PCI slot of device (optional) * If bus/slot is not specified, then first available PCI * card will be used. * [2] - 0= standard 8 DIFF/16 SE channels configuration * n = external multiplexer connected, 1 <= n <= 256 * [3] - ignored * [4] - sample&hold signal - card can generate signal for external S&H board * 0 = use SSHO(pin 45) signal is generated in onboard hardware S&H logic * 0 != use ADCHN7(pin 23) signal is generated from driver, number say how * long delay is requested in ns and sign polarity of the hold * (in this case external multiplexor can serve only 128 channels) * [5] - ignored */ /* * FIXME * * All the supported boards have the same PCI vendor and device IDs, so * auto-attachment of PCI devices will always find the first board type. * * Perhaps the boards have different subdevice IDs that we could use to * distinguish them? * * Need some device attributes so the board type can be corrected after * attachment if necessary, and possibly to set other options supported by * manual attachment. */ #include <linux/module.h> #include <linux/delay.h> #include <linux/gfp.h> #include <linux/interrupt.h> #include <linux/io.h> #include <linux/comedi/comedi_pci.h> #include <linux/comedi/comedi_8254.h> #include "amcc_s5933.h" /* * PCI BAR2 Register map (dev->iobase) */ #define PCI9118_TIMER_BASE … #define PCI9118_AI_FIFO_REG … #define PCI9118_AO_REG(x) … #define PCI9118_AI_STATUS_REG … #define PCI9118_AI_STATUS_NFULL … #define PCI9118_AI_STATUS_NHFULL … #define PCI9118_AI_STATUS_NEPTY … #define PCI9118_AI_STATUS_ACMP … #define PCI9118_AI_STATUS_DTH … #define PCI9118_AI_STATUS_BOVER … #define PCI9118_AI_STATUS_ADOS … #define PCI9118_AI_STATUS_ADOR … #define PCI9118_AI_STATUS_ADRDY … #define PCI9118_AI_CTRL_REG … #define PCI9118_AI_CTRL_UNIP … #define PCI9118_AI_CTRL_DIFF … #define PCI9118_AI_CTRL_SOFTG … #define PCI9118_AI_CTRL_EXTG … #define PCI9118_AI_CTRL_EXTM … #define PCI9118_AI_CTRL_TMRTR … #define PCI9118_AI_CTRL_INT … #define PCI9118_AI_CTRL_DMA … #define PCI9118_DIO_REG … #define PCI9118_SOFTTRG_REG … #define PCI9118_AI_CHANLIST_REG … #define PCI9118_AI_CHANLIST_RANGE(x) … #define PCI9118_AI_CHANLIST_CHAN(x) … #define PCI9118_AI_BURST_NUM_REG … #define PCI9118_AI_AUTOSCAN_MODE_REG … #define PCI9118_AI_CFG_REG … #define PCI9118_AI_CFG_PDTRG … #define PCI9118_AI_CFG_PETRG … #define PCI9118_AI_CFG_BSSH … #define PCI9118_AI_CFG_BM … #define PCI9118_AI_CFG_BS … #define PCI9118_AI_CFG_PM … #define PCI9118_AI_CFG_AM … #define PCI9118_AI_CFG_START … #define PCI9118_FIFO_RESET_REG … #define PCI9118_INT_CTRL_REG … #define PCI9118_INT_CTRL_TIMER … #define PCI9118_INT_CTRL_ABOUT … #define PCI9118_INT_CTRL_HFULL … #define PCI9118_INT_CTRL_DTRG … #define START_AI_EXT … #define STOP_AI_EXT … #define STOP_AI_INT … static const struct comedi_lrange pci9118_ai_range = …; static const struct comedi_lrange pci9118hg_ai_range = …; enum pci9118_boardid { … }; struct pci9118_boardinfo { … }; static const struct pci9118_boardinfo pci9118_boards[] = …; struct pci9118_dmabuf { … }; struct pci9118_private { … }; static void pci9118_amcc_setup_dma(struct comedi_device *dev, unsigned int buf) { … } static void pci9118_amcc_dma_ena(struct comedi_device *dev, bool enable) { … } static void pci9118_amcc_int_ena(struct comedi_device *dev, bool enable) { … } static void pci9118_ai_reset_fifo(struct comedi_device *dev) { … } static int pci9118_ai_check_chanlist(struct comedi_device *dev, struct comedi_subdevice *s, struct comedi_cmd *cmd) { … } static void pci9118_set_chanlist(struct comedi_device *dev, struct comedi_subdevice *s, int n_chan, unsigned int *chanlist, int frontadd, int backadd) { … } static void pci9118_ai_mode4_switch(struct comedi_device *dev, unsigned int next_buf) { … } static unsigned int pci9118_ai_samples_ready(struct comedi_device *dev, struct comedi_subdevice *s, unsigned int n_raw_samples) { … } static void pci9118_ai_dma_xfer(struct comedi_device *dev, struct comedi_subdevice *s, unsigned short *dma_buffer, unsigned int n_raw_samples) { … } static void pci9118_exttrg_enable(struct comedi_device *dev, bool enable) { … } static void pci9118_calc_divisors(struct comedi_device *dev, struct comedi_subdevice *s, unsigned int *tim1, unsigned int *tim2, unsigned int flags, int chans, unsigned int *div1, unsigned int *div2, unsigned int chnsshfront) { … } static void pci9118_start_pacer(struct comedi_device *dev, int mode) { … } static int pci9118_ai_cancel(struct comedi_device *dev, struct comedi_subdevice *s) { … } static void pci9118_ai_munge(struct comedi_device *dev, struct comedi_subdevice *s, void *data, unsigned int num_bytes, unsigned int start_chan_index) { … } static void pci9118_ai_get_onesample(struct comedi_device *dev, struct comedi_subdevice *s) { … } static void pci9118_ai_get_dma(struct comedi_device *dev, struct comedi_subdevice *s) { … } static irqreturn_t pci9118_interrupt(int irq, void *d) { … } static void pci9118_ai_cmd_start(struct comedi_device *dev) { … } static int pci9118_ai_inttrig(struct comedi_device *dev, struct comedi_subdevice *s, unsigned int trig_num) { … } static int pci9118_ai_setup_dma(struct comedi_device *dev, struct comedi_subdevice *s) { … } static int pci9118_ai_cmd(struct comedi_device *dev, struct comedi_subdevice *s) { … } static int pci9118_ai_cmdtest(struct comedi_device *dev, struct comedi_subdevice *s, struct comedi_cmd *cmd) { … } static int pci9118_ai_eoc(struct comedi_device *dev, struct comedi_subdevice *s, struct comedi_insn *insn, unsigned long context) { … } static void pci9118_ai_start_conv(struct comedi_device *dev) { … } static int pci9118_ai_insn_read(struct comedi_device *dev, struct comedi_subdevice *s, struct comedi_insn *insn, unsigned int *data) { … } static int pci9118_ao_insn_write(struct comedi_device *dev, struct comedi_subdevice *s, struct comedi_insn *insn, unsigned int *data) { … } static int pci9118_di_insn_bits(struct comedi_device *dev, struct comedi_subdevice *s, struct comedi_insn *insn, unsigned int *data) { … } static int pci9118_do_insn_bits(struct comedi_device *dev, struct comedi_subdevice *s, struct comedi_insn *insn, unsigned int *data) { … } static void pci9118_reset(struct comedi_device *dev) { … } static struct pci_dev *pci9118_find_pci(struct comedi_device *dev, struct comedi_devconfig *it) { … } static void pci9118_alloc_dma(struct comedi_device *dev) { … } static void pci9118_free_dma(struct comedi_device *dev) { … } static int pci9118_common_attach(struct comedi_device *dev, int ext_mux, int softsshdelay) { … } static int pci9118_attach(struct comedi_device *dev, struct comedi_devconfig *it) { … } static int pci9118_auto_attach(struct comedi_device *dev, unsigned long context) { … } static void pci9118_detach(struct comedi_device *dev) { … } static struct comedi_driver adl_pci9118_driver = …; static int adl_pci9118_pci_probe(struct pci_dev *dev, const struct pci_device_id *id) { … } /* FIXME: All the supported board types have the same device ID! */ static const struct pci_device_id adl_pci9118_pci_table[] = …; MODULE_DEVICE_TABLE(pci, adl_pci9118_pci_table); static struct pci_driver adl_pci9118_pci_driver = …; module_comedi_pci_driver(…); MODULE_AUTHOR(…) …; MODULE_DESCRIPTION(…) …; MODULE_LICENSE(…) …;
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