diff options
Diffstat (limited to 'drivers/staging/media/tw686x-kh/tw686x-kh-core.c')
| -rw-r--r-- | drivers/staging/media/tw686x-kh/tw686x-kh-core.c | 140 |
1 files changed, 0 insertions, 140 deletions
diff --git a/drivers/staging/media/tw686x-kh/tw686x-kh-core.c b/drivers/staging/media/tw686x-kh/tw686x-kh-core.c deleted file mode 100644 index 03b3b62c59c4..000000000000 --- a/drivers/staging/media/tw686x-kh/tw686x-kh-core.c +++ /dev/null @@ -1,140 +0,0 @@ -/* - * Copyright (C) 2015 Industrial Research Institute for Automation - * and Measurements PIAP - * - * Written by Krzysztof Ha?asa. - * - * This program is free software; you can redistribute it and/or modify it - * under the terms of version 2 of the GNU General Public License - * as published by the Free Software Foundation. - */ - -#include <linux/init.h> -#include <linux/interrupt.h> -#include <linux/kernel.h> -#include <linux/module.h> -#include <linux/slab.h> -#include "tw686x-kh.h" -#include "tw686x-kh-regs.h" - -static irqreturn_t tw686x_irq(int irq, void *dev_id) -{ - struct tw686x_dev *dev = (struct tw686x_dev *)dev_id; - u32 int_status = reg_read(dev, INT_STATUS); /* cleared on read */ - unsigned long flags; - unsigned int handled = 0; - - if (int_status) { - spin_lock_irqsave(&dev->irq_lock, flags); - dev->dma_requests |= int_status; - spin_unlock_irqrestore(&dev->irq_lock, flags); - - if (int_status & 0xFF0000FF) - handled = tw686x_kh_video_irq(dev); - } - - return IRQ_RETVAL(handled); -} - -static int tw686x_probe(struct pci_dev *pci_dev, - const struct pci_device_id *pci_id) -{ - struct tw686x_dev *dev; - int err; - - dev = devm_kzalloc(&pci_dev->dev, sizeof(*dev) + - (pci_id->driver_data & TYPE_MAX_CHANNELS) * - sizeof(dev->video_channels[0]), GFP_KERNEL); - if (!dev) - return -ENOMEM; - - sprintf(dev->name, "TW%04X", pci_dev->device); - dev->type = pci_id->driver_data; - - pr_info("%s: PCI %s, IRQ %d, MMIO 0x%lx\n", dev->name, - pci_name(pci_dev), pci_dev->irq, - (unsigned long)pci_resource_start(pci_dev, 0)); - - dev->pci_dev = pci_dev; - if (pcim_enable_device(pci_dev)) - return -EIO; - - pci_set_master(pci_dev); - - if (pci_set_dma_mask(pci_dev, DMA_BIT_MASK(32))) { - pr_err("%s: 32-bit PCI DMA not supported\n", dev->name); - return -EIO; - } - - err = pci_request_regions(pci_dev, dev->name); - if (err < 0) { - pr_err("%s: Unable to get MMIO region\n", dev->name); - return err; - } - - dev->mmio = pci_ioremap_bar(pci_dev, 0); - if (!dev->mmio) { - pr_err("%s: Unable to remap MMIO region\n", dev->name); - return -EIO; - } - - reg_write(dev, SYS_SOFT_RST, 0x0F); /* Reset all subsystems */ - mdelay(1); - - reg_write(dev, SRST[0], 0x3F); - if (max_channels(dev) > 4) - reg_write(dev, SRST[1], 0x3F); - reg_write(dev, DMA_CMD, 0); - reg_write(dev, DMA_CHANNEL_ENABLE, 0); - reg_write(dev, DMA_CHANNEL_TIMEOUT, 0x3EFF0FF0); - reg_write(dev, DMA_TIMER_INTERVAL, 0x38000); - reg_write(dev, DMA_CONFIG, 0xFFFFFF04); - - spin_lock_init(&dev->irq_lock); - - err = devm_request_irq(&pci_dev->dev, pci_dev->irq, tw686x_irq, - IRQF_SHARED, dev->name, dev); - if (err < 0) { - pr_err("%s: Unable to get IRQ\n", dev->name); - return err; - } - - err = tw686x_kh_video_init(dev); - if (err) - return err; - - pci_set_drvdata(pci_dev, dev); - return 0; -} - -static void tw686x_remove(struct pci_dev *pci_dev) -{ - struct tw686x_dev *dev = pci_get_drvdata(pci_dev); - - tw686x_kh_video_free(dev); -} - -/* driver_data is number of A/V channels */ -static const struct pci_device_id tw686x_pci_tbl[] = { - {PCI_DEVICE(0x1797, 0x6864), .driver_data = 4}, - /* not tested */ - {PCI_DEVICE(0x1797, 0x6865), .driver_data = 4 | TYPE_SECOND_GEN}, - /* TW6868 supports 8 A/V channels with an external TW2865 chip - - not supported by the driver */ - {PCI_DEVICE(0x1797, 0x6868), .driver_data = 4}, /* not tested */ - {PCI_DEVICE(0x1797, 0x6869), .driver_data = 8 | TYPE_SECOND_GEN}, - {} -}; - -static struct pci_driver tw686x_pci_driver = { - .name = "tw686x-kh", - .id_table = tw686x_pci_tbl, - .probe = tw686x_probe, - .remove = tw686x_remove, -}; - -MODULE_DESCRIPTION("Driver for video frame grabber cards based on Intersil/Techwell TW686[4589]"); -MODULE_AUTHOR("Krzysztof Halasa"); -MODULE_LICENSE("GPL v2"); -MODULE_DEVICE_TABLE(pci, tw686x_pci_tbl); -module_pci_driver(tw686x_pci_driver); |