diff options
Diffstat (limited to 'drivers/net/arcnet/com20020-pci.c')
| -rw-r--r-- | drivers/net/arcnet/com20020-pci.c | 618 |
1 files changed, 618 insertions, 0 deletions
diff --git a/drivers/net/arcnet/com20020-pci.c b/drivers/net/arcnet/com20020-pci.c new file mode 100644 index 0000000000..7b5c8bb02f --- /dev/null +++ b/drivers/net/arcnet/com20020-pci.c @@ -0,0 +1,618 @@ +/* + * Linux ARCnet driver - COM20020 PCI support + * Contemporary Controls PCI20 and SOHARD SH-ARC PCI + * + * Written 1994-1999 by Avery Pennarun, + * based on an ISA version by David Woodhouse. + * Written 1999-2000 by Martin Mares <mj@ucw.cz>. + * Derived from skeleton.c by Donald Becker. + * + * Special thanks to Contemporary Controls, Inc. (www.ccontrols.com) + * for sponsoring the further development of this driver. + * + * ********************** + * + * The original copyright of skeleton.c was as follows: + * + * skeleton.c Written 1993 by Donald Becker. + * Copyright 1993 United States Government as represented by the + * Director, National Security Agency. This software may only be used + * and distributed according to the terms of the GNU General Public License as + * modified by SRC, incorporated herein by reference. + * + * ********************** + * + * For more details, see drivers/net/arcnet.c + * + * ********************** + */ + +#define pr_fmt(fmt) "arcnet:" KBUILD_MODNAME ": " fmt + +#include <linux/module.h> +#include <linux/moduleparam.h> +#include <linux/kernel.h> +#include <linux/types.h> +#include <linux/ioport.h> +#include <linux/errno.h> +#include <linux/netdevice.h> +#include <linux/init.h> +#include <linux/interrupt.h> +#include <linux/pci.h> +#include <linux/list.h> +#include <linux/io.h> +#include <linux/leds.h> + +#include "arcdevice.h" +#include "com20020.h" + +/* Module parameters */ + +static int node; +static char device[9]; /* use eg. device="arc1" to change name */ +static int timeout = 3; +static int backplane; +static int clockp; +static int clockm; + +module_param(node, int, 0); +module_param_string(device, device, sizeof(device), 0); +module_param(timeout, int, 0); +module_param(backplane, int, 0); +module_param(clockp, int, 0); +module_param(clockm, int, 0); +MODULE_LICENSE("GPL"); + +static void led_tx_set(struct led_classdev *led_cdev, + enum led_brightness value) +{ + struct com20020_dev *card; + struct com20020_priv *priv; + struct com20020_pci_card_info *ci; + + card = container_of(led_cdev, struct com20020_dev, tx_led); + + priv = card->pci_priv; + ci = priv->ci; + + outb(!!value, priv->misc + ci->leds[card->index].green); +} + +static void led_recon_set(struct led_classdev *led_cdev, + enum led_brightness value) +{ + struct com20020_dev *card; + struct com20020_priv *priv; + struct com20020_pci_card_info *ci; + + card = container_of(led_cdev, struct com20020_dev, recon_led); + + priv = card->pci_priv; + ci = priv->ci; + + outb(!!value, priv->misc + ci->leds[card->index].red); +} + +static ssize_t backplane_mode_show(struct device *dev, + struct device_attribute *attr, + char *buf) +{ + struct net_device *net_dev = to_net_dev(dev); + struct arcnet_local *lp = netdev_priv(net_dev); + + return sprintf(buf, "%s\n", lp->backplane ? "true" : "false"); +} +static DEVICE_ATTR_RO(backplane_mode); + +static struct attribute *com20020_state_attrs[] = { + &dev_attr_backplane_mode.attr, + NULL, +}; + +static const struct attribute_group com20020_state_group = { + .name = NULL, + .attrs = com20020_state_attrs, +}; + +static void com20020pci_remove(struct pci_dev *pdev); + +static int com20020pci_probe(struct pci_dev *pdev, + const struct pci_device_id *id) +{ + struct com20020_pci_card_info *ci; + struct com20020_pci_channel_map *mm; + struct net_device *dev; + struct arcnet_local *lp; + struct com20020_priv *priv; + int i, ioaddr, ret; + struct resource *r; + + ret = 0; + + if (pci_enable_device(pdev)) + return -EIO; + + priv = devm_kzalloc(&pdev->dev, sizeof(struct com20020_priv), + GFP_KERNEL); + if (!priv) + return -ENOMEM; + + ci = (struct com20020_pci_card_info *)id->driver_data; + if (!ci) + return -EINVAL; + + priv->ci = ci; + mm = &ci->misc_map; + + pci_set_drvdata(pdev, priv); + + INIT_LIST_HEAD(&priv->list_dev); + + if (mm->size) { + ioaddr = pci_resource_start(pdev, mm->bar) + mm->offset; + r = devm_request_region(&pdev->dev, ioaddr, mm->size, + "com20020-pci"); + if (!r) { + pr_err("IO region %xh-%xh already allocated.\n", + ioaddr, ioaddr + mm->size - 1); + return -EBUSY; + } + priv->misc = ioaddr; + } + + for (i = 0; i < ci->devcount; i++) { + struct com20020_pci_channel_map *cm = &ci->chan_map_tbl[i]; + struct com20020_dev *card; + int dev_id_mask = 0xf; + + dev = alloc_arcdev(device); + if (!dev) { + ret = -ENOMEM; + break; + } + dev->dev_port = i; + + dev->netdev_ops = &com20020_netdev_ops; + + lp = netdev_priv(dev); + + arc_printk(D_NORMAL, dev, "%s Controls\n", ci->name); + ioaddr = pci_resource_start(pdev, cm->bar) + cm->offset; + + r = devm_request_region(&pdev->dev, ioaddr, cm->size, + "com20020-pci"); + if (!r) { + pr_err("IO region %xh-%xh already allocated\n", + ioaddr, ioaddr + cm->size - 1); + ret = -EBUSY; + goto err_free_arcdev; + } + + /* Dummy access after Reset + * ARCNET controller needs + * this access to detect bustype + */ + arcnet_outb(0x00, ioaddr, COM20020_REG_W_COMMAND); + arcnet_inb(ioaddr, COM20020_REG_R_DIAGSTAT); + + SET_NETDEV_DEV(dev, &pdev->dev); + dev->base_addr = ioaddr; + arcnet_set_addr(dev, node); + dev->sysfs_groups[0] = &com20020_state_group; + dev->irq = pdev->irq; + lp->card_name = "PCI COM20020"; + lp->card_flags = ci->flags; + lp->backplane = backplane; + lp->clockp = clockp & 7; + lp->clockm = clockm & 3; + lp->timeout = timeout; + lp->hw.owner = THIS_MODULE; + + lp->backplane = (inb(priv->misc) >> (2 + i)) & 0x1; + + if (!strncmp(ci->name, "EAE PLX-PCI FB2", 15)) + lp->backplane = 1; + + if (ci->flags & ARC_HAS_ROTARY) { + /* Get the dev_id from the PLX rotary coder */ + if (!strncmp(ci->name, "EAE PLX-PCI MA1", 15)) + dev_id_mask = 0x3; + dev->dev_id = (inb(priv->misc + ci->rotary) >> 4) & dev_id_mask; + snprintf(dev->name, sizeof(dev->name), "arc%d-%d", dev->dev_id, i); + } + + if (arcnet_inb(ioaddr, COM20020_REG_R_STATUS) == 0xFF) { + pr_err("IO address %Xh is empty!\n", ioaddr); + ret = -EIO; + goto err_free_arcdev; + } + if (com20020_check(dev)) { + ret = -EIO; + goto err_free_arcdev; + } + + ret = com20020_found(dev, IRQF_SHARED); + if (ret) + goto err_free_arcdev; + + card = devm_kzalloc(&pdev->dev, sizeof(struct com20020_dev), + GFP_KERNEL); + if (!card) { + ret = -ENOMEM; + goto err_free_arcdev; + } + + card->index = i; + card->pci_priv = priv; + + if (ci->flags & ARC_HAS_LED) { + card->tx_led.brightness_set = led_tx_set; + card->tx_led.default_trigger = devm_kasprintf(&pdev->dev, + GFP_KERNEL, "arc%d-%d-tx", + dev->dev_id, i); + card->tx_led.name = devm_kasprintf(&pdev->dev, GFP_KERNEL, + "pci:green:tx:%d-%d", + dev->dev_id, i); + + card->tx_led.dev = &dev->dev; + card->recon_led.brightness_set = led_recon_set; + card->recon_led.default_trigger = devm_kasprintf(&pdev->dev, + GFP_KERNEL, "arc%d-%d-recon", + dev->dev_id, i); + card->recon_led.name = devm_kasprintf(&pdev->dev, GFP_KERNEL, + "pci:red:recon:%d-%d", + dev->dev_id, i); + card->recon_led.dev = &dev->dev; + + ret = devm_led_classdev_register(&pdev->dev, &card->tx_led); + if (ret) + goto err_free_arcdev; + + ret = devm_led_classdev_register(&pdev->dev, &card->recon_led); + if (ret) + goto err_free_arcdev; + + dev_set_drvdata(&dev->dev, card); + devm_arcnet_led_init(dev, dev->dev_id, i); + } + + card->dev = dev; + list_add(&card->list, &priv->list_dev); + continue; + +err_free_arcdev: + free_arcdev(dev); + break; + } + if (ret) + com20020pci_remove(pdev); + return ret; +} + +static void com20020pci_remove(struct pci_dev *pdev) +{ + struct com20020_dev *card, *tmpcard; + struct com20020_priv *priv; + + priv = pci_get_drvdata(pdev); + + list_for_each_entry_safe(card, tmpcard, &priv->list_dev, list) { + struct net_device *dev = card->dev; + + unregister_netdev(dev); + free_irq(dev->irq, dev); + free_arcdev(dev); + } +} + +static struct com20020_pci_card_info card_info_10mbit = { + .name = "ARC-PCI", + .devcount = 1, + .chan_map_tbl = { + { + .bar = 2, + .offset = 0x00, + .size = 0x08, + }, + }, + .flags = ARC_CAN_10MBIT, +}; + +static struct com20020_pci_card_info card_info_5mbit = { + .name = "ARC-PCI", + .devcount = 1, + .chan_map_tbl = { + { + .bar = 2, + .offset = 0x00, + .size = 0x08, + }, + }, + .flags = ARC_IS_5MBIT, +}; + +static struct com20020_pci_card_info card_info_sohard = { + .name = "SOHARD SH ARC-PCI", + .devcount = 1, + /* SOHARD needs PCI base addr 4 */ + .chan_map_tbl = { + { + .bar = 4, + .offset = 0x00, + .size = 0x08 + }, + }, + .flags = ARC_CAN_10MBIT, +}; + +static struct com20020_pci_card_info card_info_eae_arc1 = { + .name = "EAE PLX-PCI ARC1", + .devcount = 1, + .chan_map_tbl = { + { + .bar = 2, + .offset = 0x00, + .size = 0x08, + }, + }, + .misc_map = { + .bar = 2, + .offset = 0x10, + .size = 0x04, + }, + .leds = { + { + .green = 0x0, + .red = 0x1, + }, + }, + .rotary = 0x0, + .flags = ARC_HAS_ROTARY | ARC_HAS_LED | ARC_CAN_10MBIT, +}; + +static struct com20020_pci_card_info card_info_eae_ma1 = { + .name = "EAE PLX-PCI MA1", + .devcount = 2, + .chan_map_tbl = { + { + .bar = 2, + .offset = 0x00, + .size = 0x08, + }, { + .bar = 2, + .offset = 0x08, + .size = 0x08, + } + }, + .misc_map = { + .bar = 2, + .offset = 0x10, + .size = 0x04, + }, + .leds = { + { + .green = 0x0, + .red = 0x1, + }, { + .green = 0x2, + .red = 0x3, + }, + }, + .rotary = 0x0, + .flags = ARC_HAS_ROTARY | ARC_HAS_LED | ARC_CAN_10MBIT, +}; + +static struct com20020_pci_card_info card_info_eae_fb2 = { + .name = "EAE PLX-PCI FB2", + .devcount = 1, + .chan_map_tbl = { + { + .bar = 2, + .offset = 0x00, + .size = 0x08, + }, + }, + .misc_map = { + .bar = 2, + .offset = 0x10, + .size = 0x04, + }, + .leds = { + { + .green = 0x0, + .red = 0x1, + }, + }, + .rotary = 0x0, + .flags = ARC_HAS_ROTARY | ARC_HAS_LED | ARC_CAN_10MBIT, +}; + +static const struct pci_device_id com20020pci_id_table[] = { + { + 0x1571, 0xa001, + PCI_ANY_ID, PCI_ANY_ID, + 0, 0, + 0, + }, + { + 0x1571, 0xa002, + PCI_ANY_ID, PCI_ANY_ID, + 0, 0, + 0, + }, + { + 0x1571, 0xa003, + PCI_ANY_ID, PCI_ANY_ID, + 0, 0, + 0 + }, + { + 0x1571, 0xa004, + PCI_ANY_ID, PCI_ANY_ID, + 0, 0, + 0, + }, + { + 0x1571, 0xa005, + PCI_ANY_ID, PCI_ANY_ID, + 0, 0, + 0 + }, + { + 0x1571, 0xa006, + PCI_ANY_ID, PCI_ANY_ID, + 0, 0, + 0 + }, + { + 0x1571, 0xa007, + PCI_ANY_ID, PCI_ANY_ID, + 0, 0, + 0 + }, + { + 0x1571, 0xa008, + PCI_ANY_ID, PCI_ANY_ID, + 0, 0, + 0 + }, + { + 0x1571, 0xa009, + PCI_ANY_ID, PCI_ANY_ID, + 0, 0, + (kernel_ulong_t)&card_info_5mbit + }, + { + 0x1571, 0xa00a, + PCI_ANY_ID, PCI_ANY_ID, + 0, 0, + (kernel_ulong_t)&card_info_5mbit + }, + { + 0x1571, 0xa00b, + PCI_ANY_ID, PCI_ANY_ID, + 0, 0, + (kernel_ulong_t)&card_info_5mbit + }, + { + 0x1571, 0xa00c, + PCI_ANY_ID, PCI_ANY_ID, + 0, 0, + (kernel_ulong_t)&card_info_5mbit + }, + { + 0x1571, 0xa00d, + PCI_ANY_ID, PCI_ANY_ID, + 0, 0, + (kernel_ulong_t)&card_info_5mbit + }, + { + 0x1571, 0xa00e, + PCI_ANY_ID, PCI_ANY_ID, + 0, 0, + (kernel_ulong_t)&card_info_5mbit + }, + { + 0x1571, 0xa201, + PCI_ANY_ID, PCI_ANY_ID, + 0, 0, + (kernel_ulong_t)&card_info_10mbit + }, + { + 0x1571, 0xa202, + PCI_ANY_ID, PCI_ANY_ID, + 0, 0, + (kernel_ulong_t)&card_info_10mbit + }, + { + 0x1571, 0xa203, + PCI_ANY_ID, PCI_ANY_ID, + 0, 0, + (kernel_ulong_t)&card_info_10mbit + }, + { + 0x1571, 0xa204, + PCI_ANY_ID, PCI_ANY_ID, + 0, 0, + (kernel_ulong_t)&card_info_10mbit + }, + { + 0x1571, 0xa205, + PCI_ANY_ID, PCI_ANY_ID, + 0, 0, + (kernel_ulong_t)&card_info_10mbit + }, + { + 0x1571, 0xa206, + PCI_ANY_ID, PCI_ANY_ID, + 0, 0, + (kernel_ulong_t)&card_info_10mbit + }, + { + 0x10B5, 0x9030, + 0x10B5, 0x2978, + 0, 0, + (kernel_ulong_t)&card_info_sohard + }, + { + 0x10B5, 0x9050, + 0x10B5, 0x2273, + 0, 0, + (kernel_ulong_t)&card_info_sohard + }, + { + 0x10B5, 0x9050, + 0x10B5, 0x3263, + 0, 0, + (kernel_ulong_t)&card_info_eae_arc1 + }, + { + 0x10B5, 0x9050, + 0x10B5, 0x3292, + 0, 0, + (kernel_ulong_t)&card_info_eae_ma1 + }, + { + 0x10B5, 0x9050, + 0x10B5, 0x3294, + 0, 0, + (kernel_ulong_t)&card_info_eae_fb2 + }, + { + 0x14BA, 0x6000, + PCI_ANY_ID, PCI_ANY_ID, + 0, 0, + (kernel_ulong_t)&card_info_10mbit + }, + { + 0x10B5, 0x2200, + PCI_ANY_ID, PCI_ANY_ID, + 0, 0, + (kernel_ulong_t)&card_info_10mbit + }, + { 0, } +}; + +MODULE_DEVICE_TABLE(pci, com20020pci_id_table); + +static struct pci_driver com20020pci_driver = { + .name = "com20020", + .id_table = com20020pci_id_table, + .probe = com20020pci_probe, + .remove = com20020pci_remove, +}; + +static int __init com20020pci_init(void) +{ + if (BUGLVL(D_NORMAL)) + pr_info("%s\n", "COM20020 PCI support"); + return pci_register_driver(&com20020pci_driver); +} + +static void __exit com20020pci_cleanup(void) +{ + pci_unregister_driver(&com20020pci_driver); +} + +module_init(com20020pci_init) +module_exit(com20020pci_cleanup) |