diff options
Diffstat (limited to 'drivers/staging/comedi/drivers/8255_pci.c')
| -rw-r--r-- | drivers/staging/comedi/drivers/8255_pci.c | 295 |
1 files changed, 0 insertions, 295 deletions
diff --git a/drivers/staging/comedi/drivers/8255_pci.c b/drivers/staging/comedi/drivers/8255_pci.c deleted file mode 100644 index 5a810f0e532a..000000000000 --- a/drivers/staging/comedi/drivers/8255_pci.c +++ /dev/null @@ -1,295 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0+ -/* - * COMEDI driver for generic PCI based 8255 digital i/o boards - * Copyright (C) 2012 H Hartley Sweeten <hsweeten@visionengravers.com> - * - * Based on the tested adl_pci7296 driver written by: - * Jon Grierson <jd@renko.co.uk> - * and the experimental cb_pcidio driver written by: - * Yoshiya Matsuzaka - * - * COMEDI - Linux Control and Measurement Device Interface - * Copyright (C) 2000 David A. Schleef <ds@schleef.org> - */ - -/* - * Driver: 8255_pci - * Description: Generic PCI based 8255 Digital I/O boards - * Devices: [ADLink] PCI-7224 (adl_pci-7224), PCI-7248 (adl_pci-7248), - * PCI-7296 (adl_pci-7296), - * [Measurement Computing] PCI-DIO24 (cb_pci-dio24), - * PCI-DIO24H (cb_pci-dio24h), PCI-DIO48H (cb_pci-dio48h), - * PCI-DIO96H (cb_pci-dio96h), - * [National Instruments] PCI-DIO-96 (ni_pci-dio-96), - * PCI-DIO-96B (ni_pci-dio-96b), PXI-6508 (ni_pxi-6508), - * PCI-6503 (ni_pci-6503), PCI-6503B (ni_pci-6503b), - * PCI-6503X (ni_pci-6503x), PXI-6503 (ni_pxi-6503) - * Author: H Hartley Sweeten <hsweeten@visionengravers.com> - * Updated: Wed, 12 Sep 2012 11:52:01 -0700 - * Status: untested - * - * These boards have one or more 8255 digital I/O chips, each of which - * is supported as a separate 24-channel DIO subdevice. - * - * Boards with 24 DIO channels (1 DIO subdevice): - * - * PCI-7224, PCI-DIO24, PCI-DIO24H, PCI-6503, PCI-6503B, PCI-6503X, - * PXI-6503 - * - * Boards with 48 DIO channels (2 DIO subdevices): - * - * PCI-7248, PCI-DIO48H - * - * Boards with 96 DIO channels (4 DIO subdevices): - * - * PCI-7296, PCI-DIO96H, PCI-DIO-96, PCI-DIO-96B, PXI-6508 - * - * Some of these boards also have an 8254 programmable timer/counter - * chip. This chip is not currently supported by this driver. - * - * Interrupt support for these boards is also not currently supported. - * - * Configuration Options: not applicable, uses PCI auto config. - */ - -#include <linux/module.h> - -#include "../comedi_pci.h" - -#include "8255.h" - -enum pci_8255_boardid { - BOARD_ADLINK_PCI7224, - BOARD_ADLINK_PCI7248, - BOARD_ADLINK_PCI7296, - BOARD_CB_PCIDIO24, - BOARD_CB_PCIDIO24H, - BOARD_CB_PCIDIO48H_OLD, - BOARD_CB_PCIDIO48H_NEW, - BOARD_CB_PCIDIO96H, - BOARD_NI_PCIDIO96, - BOARD_NI_PCIDIO96B, - BOARD_NI_PXI6508, - BOARD_NI_PCI6503, - BOARD_NI_PCI6503B, - BOARD_NI_PCI6503X, - BOARD_NI_PXI_6503, -}; - -struct pci_8255_boardinfo { - const char *name; - int dio_badr; - int n_8255; - unsigned int has_mite:1; -}; - -static const struct pci_8255_boardinfo pci_8255_boards[] = { - [BOARD_ADLINK_PCI7224] = { - .name = "adl_pci-7224", - .dio_badr = 2, - .n_8255 = 1, - }, - [BOARD_ADLINK_PCI7248] = { - .name = "adl_pci-7248", - .dio_badr = 2, - .n_8255 = 2, - }, - [BOARD_ADLINK_PCI7296] = { - .name = "adl_pci-7296", - .dio_badr = 2, - .n_8255 = 4, - }, - [BOARD_CB_PCIDIO24] = { - .name = "cb_pci-dio24", - .dio_badr = 2, - .n_8255 = 1, - }, - [BOARD_CB_PCIDIO24H] = { - .name = "cb_pci-dio24h", - .dio_badr = 2, - .n_8255 = 1, - }, - [BOARD_CB_PCIDIO48H_OLD] = { - .name = "cb_pci-dio48h", - .dio_badr = 1, - .n_8255 = 2, - }, - [BOARD_CB_PCIDIO48H_NEW] = { - .name = "cb_pci-dio48h", - .dio_badr = 2, - .n_8255 = 2, - }, - [BOARD_CB_PCIDIO96H] = { - .name = "cb_pci-dio96h", - .dio_badr = 2, - .n_8255 = 4, - }, - [BOARD_NI_PCIDIO96] = { - .name = "ni_pci-dio-96", - .dio_badr = 1, - .n_8255 = 4, - .has_mite = 1, - }, - [BOARD_NI_PCIDIO96B] = { - .name = "ni_pci-dio-96b", - .dio_badr = 1, - .n_8255 = 4, - .has_mite = 1, - }, - [BOARD_NI_PXI6508] = { - .name = "ni_pxi-6508", - .dio_badr = 1, - .n_8255 = 4, - .has_mite = 1, - }, - [BOARD_NI_PCI6503] = { - .name = "ni_pci-6503", - .dio_badr = 1, - .n_8255 = 1, - .has_mite = 1, - }, - [BOARD_NI_PCI6503B] = { - .name = "ni_pci-6503b", - .dio_badr = 1, - .n_8255 = 1, - .has_mite = 1, - }, - [BOARD_NI_PCI6503X] = { - .name = "ni_pci-6503x", - .dio_badr = 1, - .n_8255 = 1, - .has_mite = 1, - }, - [BOARD_NI_PXI_6503] = { - .name = "ni_pxi-6503", - .dio_badr = 1, - .n_8255 = 1, - .has_mite = 1, - }, -}; - -/* ripped from mite.h and mite_setup2() to avoid mite dependency */ -#define MITE_IODWBSR 0xc0 /* IO Device Window Base Size Register */ -#define WENAB BIT(7) /* window enable */ - -static int pci_8255_mite_init(struct pci_dev *pcidev) -{ - void __iomem *mite_base; - u32 main_phys_addr; - - /* ioremap the MITE registers (BAR 0) temporarily */ - mite_base = pci_ioremap_bar(pcidev, 0); - if (!mite_base) - return -ENOMEM; - - /* set data window to main registers (BAR 1) */ - main_phys_addr = pci_resource_start(pcidev, 1); - writel(main_phys_addr | WENAB, mite_base + MITE_IODWBSR); - - /* finished with MITE registers */ - iounmap(mite_base); - return 0; -} - -static int pci_8255_auto_attach(struct comedi_device *dev, - unsigned long context) -{ - struct pci_dev *pcidev = comedi_to_pci_dev(dev); - const struct pci_8255_boardinfo *board = NULL; - struct comedi_subdevice *s; - int ret; - int i; - - if (context < ARRAY_SIZE(pci_8255_boards)) - board = &pci_8255_boards[context]; - if (!board) - return -ENODEV; - dev->board_ptr = board; - dev->board_name = board->name; - - ret = comedi_pci_enable(dev); - if (ret) - return ret; - - if (board->has_mite) { - ret = pci_8255_mite_init(pcidev); - if (ret) - return ret; - } - - if ((pci_resource_flags(pcidev, board->dio_badr) & IORESOURCE_MEM)) { - dev->mmio = pci_ioremap_bar(pcidev, board->dio_badr); - if (!dev->mmio) - return -ENOMEM; - } else { - dev->iobase = pci_resource_start(pcidev, board->dio_badr); - } - - /* - * One, two, or four subdevices are setup by this driver depending - * on the number of channels provided by the board. Each subdevice - * has 24 channels supported by the 8255 module. - */ - ret = comedi_alloc_subdevices(dev, board->n_8255); - if (ret) - return ret; - - for (i = 0; i < board->n_8255; i++) { - s = &dev->subdevices[i]; - if (dev->mmio) - ret = subdev_8255_mm_init(dev, s, NULL, i * I8255_SIZE); - else - ret = subdev_8255_init(dev, s, NULL, i * I8255_SIZE); - if (ret) - return ret; - } - - return 0; -} - -static struct comedi_driver pci_8255_driver = { - .driver_name = "8255_pci", - .module = THIS_MODULE, - .auto_attach = pci_8255_auto_attach, - .detach = comedi_pci_detach, -}; - -static int pci_8255_pci_probe(struct pci_dev *dev, - const struct pci_device_id *id) -{ - return comedi_pci_auto_config(dev, &pci_8255_driver, id->driver_data); -} - -static const struct pci_device_id pci_8255_pci_table[] = { - { PCI_VDEVICE(ADLINK, 0x7224), BOARD_ADLINK_PCI7224 }, - { PCI_VDEVICE(ADLINK, 0x7248), BOARD_ADLINK_PCI7248 }, - { PCI_VDEVICE(ADLINK, 0x7296), BOARD_ADLINK_PCI7296 }, - { PCI_VDEVICE(CB, 0x0028), BOARD_CB_PCIDIO24 }, - { PCI_VDEVICE(CB, 0x0014), BOARD_CB_PCIDIO24H }, - { PCI_DEVICE_SUB(PCI_VENDOR_ID_CB, 0x000b, 0x0000, 0x0000), - .driver_data = BOARD_CB_PCIDIO48H_OLD }, - { PCI_DEVICE_SUB(PCI_VENDOR_ID_CB, 0x000b, PCI_VENDOR_ID_CB, 0x000b), - .driver_data = BOARD_CB_PCIDIO48H_NEW }, - { PCI_VDEVICE(CB, 0x0017), BOARD_CB_PCIDIO96H }, - { PCI_VDEVICE(NI, 0x0160), BOARD_NI_PCIDIO96 }, - { PCI_VDEVICE(NI, 0x1630), BOARD_NI_PCIDIO96B }, - { PCI_VDEVICE(NI, 0x13c0), BOARD_NI_PXI6508 }, - { PCI_VDEVICE(NI, 0x0400), BOARD_NI_PCI6503 }, - { PCI_VDEVICE(NI, 0x1250), BOARD_NI_PCI6503B }, - { PCI_VDEVICE(NI, 0x17d0), BOARD_NI_PCI6503X }, - { PCI_VDEVICE(NI, 0x1800), BOARD_NI_PXI_6503 }, - { 0 } -}; -MODULE_DEVICE_TABLE(pci, pci_8255_pci_table); - -static struct pci_driver pci_8255_pci_driver = { - .name = "8255_pci", - .id_table = pci_8255_pci_table, - .probe = pci_8255_pci_probe, - .remove = comedi_pci_auto_unconfig, -}; -module_comedi_pci_driver(pci_8255_driver, pci_8255_pci_driver); - -MODULE_DESCRIPTION("COMEDI - Generic PCI based 8255 Digital I/O boards"); -MODULE_AUTHOR("Comedi https://www.comedi.org"); -MODULE_LICENSE("GPL"); |