1 // SPDX-License-Identifier: GPL-2.0+ 2 /* 3 * addi_apci_16xx.c 4 * Copyright (C) 2004,2005 ADDI-DATA GmbH for the source code of this module. 5 * Project manager: S. Weber 6 * 7 * ADDI-DATA GmbH 8 * Dieselstrasse 3 9 * D-77833 Ottersweier 10 * Tel: +19(0)7223/9493-0 11 * Fax: +49(0)7223/9493-92 12 * http://www.addi-data.com 13 * info@addi-data.com 14 */ 15 16 #include <linux/module.h> 17 18 #include "../comedi_pci.h" 19 20 /* 21 * Register I/O map 22 */ 23 #define APCI16XX_IN_REG(x) (((x) * 4) + 0x08) 24 #define APCI16XX_OUT_REG(x) (((x) * 4) + 0x14) 25 #define APCI16XX_DIR_REG(x) (((x) * 4) + 0x20) 26 27 enum apci16xx_boardid { 28 BOARD_APCI1648, 29 BOARD_APCI1696, 30 }; 31 32 struct apci16xx_boardinfo { 33 const char *name; 34 int n_chan; 35 }; 36 37 static const struct apci16xx_boardinfo apci16xx_boardtypes[] = { 38 [BOARD_APCI1648] = { 39 .name = "apci1648", 40 .n_chan = 48, /* 2 subdevices */ 41 }, 42 [BOARD_APCI1696] = { 43 .name = "apci1696", 44 .n_chan = 96, /* 3 subdevices */ 45 }, 46 }; 47 48 static int apci16xx_insn_config(struct comedi_device *dev, 49 struct comedi_subdevice *s, 50 struct comedi_insn *insn, 51 unsigned int *data) 52 { 53 unsigned int chan = CR_CHAN(insn->chanspec); 54 unsigned int mask; 55 int ret; 56 57 if (chan < 8) 58 mask = 0x000000ff; 59 else if (chan < 16) 60 mask = 0x0000ff00; 61 else if (chan < 24) 62 mask = 0x00ff0000; 63 else 64 mask = 0xff000000; 65 66 ret = comedi_dio_insn_config(dev, s, insn, data, mask); 67 if (ret) 68 return ret; 69 70 outl(s->io_bits, dev->iobase + APCI16XX_DIR_REG(s->index)); 71 72 return insn->n; 73 } 74 75 static int apci16xx_dio_insn_bits(struct comedi_device *dev, 76 struct comedi_subdevice *s, 77 struct comedi_insn *insn, 78 unsigned int *data) 79 { 80 if (comedi_dio_update_state(s, data)) 81 outl(s->state, dev->iobase + APCI16XX_OUT_REG(s->index)); 82 83 data[1] = inl(dev->iobase + APCI16XX_IN_REG(s->index)); 84 85 return insn->n; 86 } 87 88 static int apci16xx_auto_attach(struct comedi_device *dev, 89 unsigned long context) 90 { 91 struct pci_dev *pcidev = comedi_to_pci_dev(dev); 92 const struct apci16xx_boardinfo *board = NULL; 93 struct comedi_subdevice *s; 94 unsigned int n_subdevs; 95 unsigned int last; 96 int i; 97 int ret; 98 99 if (context < ARRAY_SIZE(apci16xx_boardtypes)) 100 board = &apci16xx_boardtypes[context]; 101 if (!board) 102 return -ENODEV; 103 dev->board_ptr = board; 104 dev->board_name = board->name; 105 106 ret = comedi_pci_enable(dev); 107 if (ret) 108 return ret; 109 110 dev->iobase = pci_resource_start(pcidev, 0); 111 112 /* 113 * Work out the number of subdevices needed to support all the 114 * digital i/o channels on the board. Each subdevice supports 115 * up to 32 channels. 116 */ 117 n_subdevs = board->n_chan / 32; 118 if ((n_subdevs * 32) < board->n_chan) { 119 last = board->n_chan - (n_subdevs * 32); 120 n_subdevs++; 121 } else { 122 last = 0; 123 } 124 125 ret = comedi_alloc_subdevices(dev, n_subdevs); 126 if (ret) 127 return ret; 128 129 /* Initialize the TTL digital i/o subdevices */ 130 for (i = 0; i < n_subdevs; i++) { 131 s = &dev->subdevices[i]; 132 s->type = COMEDI_SUBD_DIO; 133 s->subdev_flags = SDF_WRITABLE | SDF_READABLE; 134 s->n_chan = ((i * 32) < board->n_chan) ? 32 : last; 135 s->maxdata = 1; 136 s->range_table = &range_digital; 137 s->insn_config = apci16xx_insn_config; 138 s->insn_bits = apci16xx_dio_insn_bits; 139 140 /* Default all channels to inputs */ 141 s->io_bits = 0; 142 outl(s->io_bits, dev->iobase + APCI16XX_DIR_REG(i)); 143 } 144 145 return 0; 146 } 147 148 static struct comedi_driver apci16xx_driver = { 149 .driver_name = "addi_apci_16xx", 150 .module = THIS_MODULE, 151 .auto_attach = apci16xx_auto_attach, 152 .detach = comedi_pci_detach, 153 }; 154 155 static int apci16xx_pci_probe(struct pci_dev *dev, 156 const struct pci_device_id *id) 157 { 158 return comedi_pci_auto_config(dev, &apci16xx_driver, id->driver_data); 159 } 160 161 static const struct pci_device_id apci16xx_pci_table[] = { 162 { PCI_VDEVICE(ADDIDATA, 0x1009), BOARD_APCI1648 }, 163 { PCI_VDEVICE(ADDIDATA, 0x100a), BOARD_APCI1696 }, 164 { 0 } 165 }; 166 MODULE_DEVICE_TABLE(pci, apci16xx_pci_table); 167 168 static struct pci_driver apci16xx_pci_driver = { 169 .name = "addi_apci_16xx", 170 .id_table = apci16xx_pci_table, 171 .probe = apci16xx_pci_probe, 172 .remove = comedi_pci_auto_unconfig, 173 }; 174 module_comedi_pci_driver(apci16xx_driver, apci16xx_pci_driver); 175 176 MODULE_DESCRIPTION("ADDI-DATA APCI-1648/1696, TTL I/O boards"); 177 MODULE_AUTHOR("Comedi https://www.comedi.org"); 178 MODULE_LICENSE("GPL"); 179