| // SPDX-License-Identifier: GPL-2.0-only |
| /* |
| * Copyright (C) 2008-2010 |
| * |
| * - Kurt Van Dijck, EIA Electronics |
| */ |
| |
| #include <linux/module.h> |
| #include <linux/kernel.h> |
| #include <linux/slab.h> |
| |
| #include <pcmcia/cistpl.h> |
| #include <pcmcia/ds.h> |
| |
| #include "softing_platform.h" |
| |
| static int softingcs_index; |
| static DEFINE_SPINLOCK(softingcs_index_lock); |
| |
| static int softingcs_reset(struct platform_device *pdev, int v); |
| static int softingcs_enable_irq(struct platform_device *pdev, int v); |
| |
| /* |
| * platform_data descriptions |
| */ |
| #define MHZ (1000*1000) |
| static const struct softing_platform_data softingcs_platform_data[] = { |
| { |
| .name = "CANcard", |
| .manf = 0x0168, .prod = 0x001, |
| .generation = 1, |
| .nbus = 2, |
| .freq = 16 * MHZ, .max_brp = 32, .max_sjw = 4, |
| .dpram_size = 0x0800, |
| .boot = {0x0000, 0x000000, fw_dir "bcard.bin",}, |
| .load = {0x0120, 0x00f600, fw_dir "ldcard.bin",}, |
| .app = {0x0010, 0x0d0000, fw_dir "cancard.bin",}, |
| .reset = softingcs_reset, |
| .enable_irq = softingcs_enable_irq, |
| }, { |
| .name = "CANcard-NEC", |
| .manf = 0x0168, .prod = 0x002, |
| .generation = 1, |
| .nbus = 2, |
| .freq = 16 * MHZ, .max_brp = 32, .max_sjw = 4, |
| .dpram_size = 0x0800, |
| .boot = {0x0000, 0x000000, fw_dir "bcard.bin",}, |
| .load = {0x0120, 0x00f600, fw_dir "ldcard.bin",}, |
| .app = {0x0010, 0x0d0000, fw_dir "cancard.bin",}, |
| .reset = softingcs_reset, |
| .enable_irq = softingcs_enable_irq, |
| }, { |
| .name = "CANcard-SJA", |
| .manf = 0x0168, .prod = 0x004, |
| .generation = 1, |
| .nbus = 2, |
| .freq = 20 * MHZ, .max_brp = 32, .max_sjw = 4, |
| .dpram_size = 0x0800, |
| .boot = {0x0000, 0x000000, fw_dir "bcard.bin",}, |
| .load = {0x0120, 0x00f600, fw_dir "ldcard.bin",}, |
| .app = {0x0010, 0x0d0000, fw_dir "cansja.bin",}, |
| .reset = softingcs_reset, |
| .enable_irq = softingcs_enable_irq, |
| }, { |
| .name = "CANcard-2", |
| .manf = 0x0168, .prod = 0x005, |
| .generation = 2, |
| .nbus = 2, |
| .freq = 24 * MHZ, .max_brp = 64, .max_sjw = 4, |
| .dpram_size = 0x1000, |
| .boot = {0x0000, 0x000000, fw_dir "bcard2.bin",}, |
| .load = {0x0120, 0x00f600, fw_dir "ldcard2.bin",}, |
| .app = {0x0010, 0x0d0000, fw_dir "cancrd2.bin",}, |
| .reset = softingcs_reset, |
| .enable_irq = NULL, |
| }, { |
| .name = "Vector-CANcard", |
| .manf = 0x0168, .prod = 0x081, |
| .generation = 1, |
| .nbus = 2, |
| .freq = 16 * MHZ, .max_brp = 64, .max_sjw = 4, |
| .dpram_size = 0x0800, |
| .boot = {0x0000, 0x000000, fw_dir "bcard.bin",}, |
| .load = {0x0120, 0x00f600, fw_dir "ldcard.bin",}, |
| .app = {0x0010, 0x0d0000, fw_dir "cancard.bin",}, |
| .reset = softingcs_reset, |
| .enable_irq = softingcs_enable_irq, |
| }, { |
| .name = "Vector-CANcard-SJA", |
| .manf = 0x0168, .prod = 0x084, |
| .generation = 1, |
| .nbus = 2, |
| .freq = 20 * MHZ, .max_brp = 32, .max_sjw = 4, |
| .dpram_size = 0x0800, |
| .boot = {0x0000, 0x000000, fw_dir "bcard.bin",}, |
| .load = {0x0120, 0x00f600, fw_dir "ldcard.bin",}, |
| .app = {0x0010, 0x0d0000, fw_dir "cansja.bin",}, |
| .reset = softingcs_reset, |
| .enable_irq = softingcs_enable_irq, |
| }, { |
| .name = "Vector-CANcard-2", |
| .manf = 0x0168, .prod = 0x085, |
| .generation = 2, |
| .nbus = 2, |
| .freq = 24 * MHZ, .max_brp = 64, .max_sjw = 4, |
| .dpram_size = 0x1000, |
| .boot = {0x0000, 0x000000, fw_dir "bcard2.bin",}, |
| .load = {0x0120, 0x00f600, fw_dir "ldcard2.bin",}, |
| .app = {0x0010, 0x0d0000, fw_dir "cancrd2.bin",}, |
| .reset = softingcs_reset, |
| .enable_irq = NULL, |
| }, { |
| .name = "EDICcard-NEC", |
| .manf = 0x0168, .prod = 0x102, |
| .generation = 1, |
| .nbus = 2, |
| .freq = 16 * MHZ, .max_brp = 64, .max_sjw = 4, |
| .dpram_size = 0x0800, |
| .boot = {0x0000, 0x000000, fw_dir "bcard.bin",}, |
| .load = {0x0120, 0x00f600, fw_dir "ldcard.bin",}, |
| .app = {0x0010, 0x0d0000, fw_dir "cancard.bin",}, |
| .reset = softingcs_reset, |
| .enable_irq = softingcs_enable_irq, |
| }, { |
| .name = "EDICcard-2", |
| .manf = 0x0168, .prod = 0x105, |
| .generation = 2, |
| .nbus = 2, |
| .freq = 24 * MHZ, .max_brp = 64, .max_sjw = 4, |
| .dpram_size = 0x1000, |
| .boot = {0x0000, 0x000000, fw_dir "bcard2.bin",}, |
| .load = {0x0120, 0x00f600, fw_dir "ldcard2.bin",}, |
| .app = {0x0010, 0x0d0000, fw_dir "cancrd2.bin",}, |
| .reset = softingcs_reset, |
| .enable_irq = NULL, |
| }, { |
| 0, 0, |
| }, |
| }; |
| |
| MODULE_FIRMWARE(fw_dir "bcard.bin"); |
| MODULE_FIRMWARE(fw_dir "ldcard.bin"); |
| MODULE_FIRMWARE(fw_dir "cancard.bin"); |
| MODULE_FIRMWARE(fw_dir "cansja.bin"); |
| |
| MODULE_FIRMWARE(fw_dir "bcard2.bin"); |
| MODULE_FIRMWARE(fw_dir "ldcard2.bin"); |
| MODULE_FIRMWARE(fw_dir "cancrd2.bin"); |
| |
| static const struct softing_platform_data |
| *softingcs_find_platform_data(unsigned int manf, unsigned int prod) |
| { |
| const struct softing_platform_data *lp; |
| |
| for (lp = softingcs_platform_data; lp->manf; ++lp) { |
| if ((lp->manf == manf) && (lp->prod == prod)) |
| return lp; |
| } |
| return NULL; |
| } |
| |
| /* |
| * platformdata callbacks |
| */ |
| static int softingcs_reset(struct platform_device *pdev, int v) |
| { |
| struct pcmcia_device *pcmcia = to_pcmcia_dev(pdev->dev.parent); |
| |
| dev_dbg(&pdev->dev, "pcmcia config [2] %02x\n", v ? 0 : 0x20); |
| return pcmcia_write_config_byte(pcmcia, 2, v ? 0 : 0x20); |
| } |
| |
| static int softingcs_enable_irq(struct platform_device *pdev, int v) |
| { |
| struct pcmcia_device *pcmcia = to_pcmcia_dev(pdev->dev.parent); |
| |
| dev_dbg(&pdev->dev, "pcmcia config [0] %02x\n", v ? 0x60 : 0); |
| return pcmcia_write_config_byte(pcmcia, 0, v ? 0x60 : 0); |
| } |
| |
| /* |
| * pcmcia check |
| */ |
| static int softingcs_probe_config(struct pcmcia_device *pcmcia, void *priv_data) |
| { |
| struct softing_platform_data *pdat = priv_data; |
| struct resource *pres; |
| int memspeed = 0; |
| |
| WARN_ON(!pdat); |
| pres = pcmcia->resource[PCMCIA_IOMEM_0]; |
| if (resource_size(pres) < 0x1000) |
| return -ERANGE; |
| |
| pres->flags |= WIN_MEMORY_TYPE_CM | WIN_ENABLE; |
| if (pdat->generation < 2) { |
| pres->flags |= WIN_USE_WAIT | WIN_DATA_WIDTH_8; |
| memspeed = 3; |
| } else { |
| pres->flags |= WIN_DATA_WIDTH_16; |
| } |
| return pcmcia_request_window(pcmcia, pres, memspeed); |
| } |
| |
| static void softingcs_remove(struct pcmcia_device *pcmcia) |
| { |
| struct platform_device *pdev = pcmcia->priv; |
| |
| /* free bits */ |
| platform_device_unregister(pdev); |
| /* release pcmcia stuff */ |
| pcmcia_disable_device(pcmcia); |
| } |
| |
| /* |
| * platform_device wrapper |
| * pdev->resource has 2 entries: io & irq |
| */ |
| static void softingcs_pdev_release(struct device *dev) |
| { |
| struct platform_device *pdev = to_platform_device(dev); |
| kfree(pdev); |
| } |
| |
| static int softingcs_probe(struct pcmcia_device *pcmcia) |
| { |
| int ret; |
| struct platform_device *pdev; |
| const struct softing_platform_data *pdat; |
| struct resource *pres; |
| struct dev { |
| struct platform_device pdev; |
| struct resource res[2]; |
| } *dev; |
| |
| /* find matching platform_data */ |
| pdat = softingcs_find_platform_data(pcmcia->manf_id, pcmcia->card_id); |
| if (!pdat) |
| return -ENOTTY; |
| |
| /* setup pcmcia device */ |
| pcmcia->config_flags |= CONF_ENABLE_IRQ | CONF_AUTO_SET_IOMEM | |
| CONF_AUTO_SET_VPP | CONF_AUTO_CHECK_VCC; |
| ret = pcmcia_loop_config(pcmcia, softingcs_probe_config, (void *)pdat); |
| if (ret) |
| goto pcmcia_failed; |
| |
| ret = pcmcia_enable_device(pcmcia); |
| if (ret < 0) |
| goto pcmcia_failed; |
| |
| pres = pcmcia->resource[PCMCIA_IOMEM_0]; |
| if (!pres) { |
| ret = -EBADF; |
| goto pcmcia_bad; |
| } |
| |
| /* create softing platform device */ |
| dev = kzalloc(sizeof(*dev), GFP_KERNEL); |
| if (!dev) { |
| ret = -ENOMEM; |
| goto mem_failed; |
| } |
| dev->pdev.resource = dev->res; |
| dev->pdev.num_resources = ARRAY_SIZE(dev->res); |
| dev->pdev.dev.release = softingcs_pdev_release; |
| |
| pdev = &dev->pdev; |
| pdev->dev.platform_data = (void *)pdat; |
| pdev->dev.parent = &pcmcia->dev; |
| pcmcia->priv = pdev; |
| |
| /* platform device resources */ |
| pdev->resource[0].flags = IORESOURCE_MEM; |
| pdev->resource[0].start = pres->start; |
| pdev->resource[0].end = pres->end; |
| |
| pdev->resource[1].flags = IORESOURCE_IRQ; |
| pdev->resource[1].start = pcmcia->irq; |
| pdev->resource[1].end = pdev->resource[1].start; |
| |
| /* platform device setup */ |
| spin_lock(&softingcs_index_lock); |
| pdev->id = softingcs_index++; |
| spin_unlock(&softingcs_index_lock); |
| pdev->name = "softing"; |
| dev_set_name(&pdev->dev, "softingcs.%i", pdev->id); |
| ret = platform_device_register(pdev); |
| if (ret < 0) |
| goto platform_failed; |
| |
| dev_info(&pcmcia->dev, "created %s\n", dev_name(&pdev->dev)); |
| return 0; |
| |
| platform_failed: |
| kfree(dev); |
| mem_failed: |
| pcmcia_bad: |
| pcmcia_failed: |
| pcmcia_disable_device(pcmcia); |
| pcmcia->priv = NULL; |
| return ret; |
| } |
| |
| static const struct pcmcia_device_id softingcs_ids[] = { |
| /* softing */ |
| PCMCIA_DEVICE_MANF_CARD(0x0168, 0x0001), |
| PCMCIA_DEVICE_MANF_CARD(0x0168, 0x0002), |
| PCMCIA_DEVICE_MANF_CARD(0x0168, 0x0004), |
| PCMCIA_DEVICE_MANF_CARD(0x0168, 0x0005), |
| /* vector, manufacturer? */ |
| PCMCIA_DEVICE_MANF_CARD(0x0168, 0x0081), |
| PCMCIA_DEVICE_MANF_CARD(0x0168, 0x0084), |
| PCMCIA_DEVICE_MANF_CARD(0x0168, 0x0085), |
| /* EDIC */ |
| PCMCIA_DEVICE_MANF_CARD(0x0168, 0x0102), |
| PCMCIA_DEVICE_MANF_CARD(0x0168, 0x0105), |
| PCMCIA_DEVICE_NULL, |
| }; |
| |
| MODULE_DEVICE_TABLE(pcmcia, softingcs_ids); |
| |
| static struct pcmcia_driver softingcs_driver = { |
| .owner = THIS_MODULE, |
| .name = "softingcs", |
| .id_table = softingcs_ids, |
| .probe = softingcs_probe, |
| .remove = softingcs_remove, |
| }; |
| |
| module_pcmcia_driver(softingcs_driver); |
| |
| MODULE_DESCRIPTION("softing CANcard driver" |
| ", links PCMCIA card to softing driver"); |
| MODULE_LICENSE("GPL v2"); |
