![Devendra Naga](/assets/img/avatar_default.png)
the driver duplicates the module_pci_driver code, how? module_pci_driver is used for those drivers whose init and exit paths does only register and unregister to pci API and nothing else. so use the module_pci_driver macro instead Signed-off-by: Devendra Naga <devendra.aaru@gmail.com> Acked-by: Ismael Luceno <ismael.luceno@gmail.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
322 lines
7.8 KiB
C
322 lines
7.8 KiB
C
/*
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* Copyright (C) 2010 Bluecherry, LLC www.bluecherrydvr.com
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* Copyright (C) 2010 Ben Collins <bcollins@bluecherry.net>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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*/
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#include <linux/kernel.h>
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#include <linux/module.h>
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#include <linux/pci.h>
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#include <linux/interrupt.h>
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#include <linux/slab.h>
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#include <linux/videodev2.h>
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#include "solo6x10.h"
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#include "tw28.h"
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MODULE_DESCRIPTION("Softlogic 6x10 MP4/H.264 Encoder/Decoder V4L2/ALSA Driver");
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MODULE_AUTHOR("Ben Collins <bcollins@bluecherry.net>");
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MODULE_VERSION(SOLO6X10_VERSION);
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MODULE_LICENSE("GPL");
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void solo_irq_on(struct solo_dev *solo_dev, u32 mask)
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{
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solo_dev->irq_mask |= mask;
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solo_reg_write(solo_dev, SOLO_IRQ_ENABLE, solo_dev->irq_mask);
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}
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void solo_irq_off(struct solo_dev *solo_dev, u32 mask)
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{
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solo_dev->irq_mask &= ~mask;
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solo_reg_write(solo_dev, SOLO_IRQ_ENABLE, solo_dev->irq_mask);
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}
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/* XXX We should check the return value of the sub-device ISR's */
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static irqreturn_t solo_isr(int irq, void *data)
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{
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struct solo_dev *solo_dev = data;
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u32 status;
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int i;
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status = solo_reg_read(solo_dev, SOLO_IRQ_STAT);
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if (!status)
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return IRQ_NONE;
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if (status & ~solo_dev->irq_mask) {
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solo_reg_write(solo_dev, SOLO_IRQ_STAT,
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status & ~solo_dev->irq_mask);
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status &= solo_dev->irq_mask;
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}
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if (status & SOLO_IRQ_PCI_ERR) {
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u32 err = solo_reg_read(solo_dev, SOLO_PCI_ERR);
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solo_p2m_error_isr(solo_dev, err);
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solo_reg_write(solo_dev, SOLO_IRQ_STAT, SOLO_IRQ_PCI_ERR);
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}
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for (i = 0; i < SOLO_NR_P2M; i++)
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if (status & SOLO_IRQ_P2M(i))
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solo_p2m_isr(solo_dev, i);
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if (status & SOLO_IRQ_IIC)
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solo_i2c_isr(solo_dev);
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if (status & SOLO_IRQ_VIDEO_IN)
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solo_video_in_isr(solo_dev);
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/* Call this first so enc gets detected flag set */
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if (status & SOLO_IRQ_MOTION)
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solo_motion_isr(solo_dev);
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if (status & SOLO_IRQ_ENCODER)
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solo_enc_v4l2_isr(solo_dev);
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if (status & SOLO_IRQ_G723)
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solo_g723_isr(solo_dev);
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return IRQ_HANDLED;
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}
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static void free_solo_dev(struct solo_dev *solo_dev)
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{
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struct pci_dev *pdev;
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if (!solo_dev)
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return;
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pdev = solo_dev->pdev;
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/* If we never initialized the PCI device, then nothing else
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* below here needs cleanup */
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if (!pdev) {
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kfree(solo_dev);
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return;
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}
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/* Bring down the sub-devices first */
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solo_g723_exit(solo_dev);
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solo_enc_v4l2_exit(solo_dev);
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solo_enc_exit(solo_dev);
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solo_v4l2_exit(solo_dev);
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solo_disp_exit(solo_dev);
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solo_gpio_exit(solo_dev);
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solo_p2m_exit(solo_dev);
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solo_i2c_exit(solo_dev);
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/* Now cleanup the PCI device */
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if (solo_dev->reg_base) {
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solo_irq_off(solo_dev, ~0);
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pci_iounmap(pdev, solo_dev->reg_base);
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free_irq(pdev->irq, solo_dev);
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}
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pci_release_regions(pdev);
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pci_disable_device(pdev);
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pci_set_drvdata(pdev, NULL);
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kfree(solo_dev);
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}
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static int __devinit solo_pci_probe(struct pci_dev *pdev,
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const struct pci_device_id *id)
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{
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struct solo_dev *solo_dev;
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int ret;
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int sdram;
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u8 chip_id;
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u32 reg;
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solo_dev = kzalloc(sizeof(*solo_dev), GFP_KERNEL);
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if (solo_dev == NULL)
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return -ENOMEM;
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solo_dev->pdev = pdev;
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spin_lock_init(&solo_dev->reg_io_lock);
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pci_set_drvdata(pdev, solo_dev);
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ret = pci_enable_device(pdev);
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if (ret)
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goto fail_probe;
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pci_set_master(pdev);
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ret = pci_request_regions(pdev, SOLO6X10_NAME);
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if (ret)
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goto fail_probe;
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solo_dev->reg_base = pci_ioremap_bar(pdev, 0);
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if (solo_dev->reg_base == NULL) {
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ret = -ENOMEM;
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goto fail_probe;
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}
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chip_id = solo_reg_read(solo_dev, SOLO_CHIP_OPTION) &
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SOLO_CHIP_ID_MASK;
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switch (chip_id) {
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case 7:
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solo_dev->nr_chans = 16;
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solo_dev->nr_ext = 5;
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break;
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case 6:
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solo_dev->nr_chans = 8;
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solo_dev->nr_ext = 2;
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break;
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default:
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dev_warn(&pdev->dev, "Invalid chip_id 0x%02x, "
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"defaulting to 4 channels\n",
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chip_id);
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case 5:
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solo_dev->nr_chans = 4;
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solo_dev->nr_ext = 1;
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}
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solo_dev->flags = id->driver_data;
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/* Disable all interrupts to start */
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solo_irq_off(solo_dev, ~0);
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reg = SOLO_SYS_CFG_SDRAM64BIT;
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/* Initial global settings */
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if (!(solo_dev->flags & FLAGS_6110))
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reg |= SOLO6010_SYS_CFG_INPUTDIV(25) |
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SOLO6010_SYS_CFG_FEEDBACKDIV((SOLO_CLOCK_MHZ * 2) - 2) |
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SOLO6010_SYS_CFG_OUTDIV(3);
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solo_reg_write(solo_dev, SOLO_SYS_CFG, reg);
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if (solo_dev->flags & FLAGS_6110) {
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u32 sys_clock_MHz = SOLO_CLOCK_MHZ;
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u32 pll_DIVQ;
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u32 pll_DIVF;
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if (sys_clock_MHz < 125) {
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pll_DIVQ = 3;
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pll_DIVF = (sys_clock_MHz * 4) / 3;
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} else {
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pll_DIVQ = 2;
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pll_DIVF = (sys_clock_MHz * 2) / 3;
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}
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solo_reg_write(solo_dev, SOLO6110_PLL_CONFIG,
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SOLO6110_PLL_RANGE_5_10MHZ |
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SOLO6110_PLL_DIVR(9) |
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SOLO6110_PLL_DIVQ_EXP(pll_DIVQ) |
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SOLO6110_PLL_DIVF(pll_DIVF) | SOLO6110_PLL_FSEN);
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mdelay(1); /* PLL Locking time (1ms) */
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solo_reg_write(solo_dev, SOLO_DMA_CTRL1, 3 << 8); /* ? */
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} else
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solo_reg_write(solo_dev, SOLO_DMA_CTRL1, 1 << 8); /* ? */
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solo_reg_write(solo_dev, SOLO_TIMER_CLOCK_NUM, SOLO_CLOCK_MHZ - 1);
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/* PLL locking time of 1ms */
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mdelay(1);
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ret = request_irq(pdev->irq, solo_isr, IRQF_SHARED, SOLO6X10_NAME,
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solo_dev);
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if (ret)
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goto fail_probe;
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/* Handle this from the start */
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solo_irq_on(solo_dev, SOLO_IRQ_PCI_ERR);
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ret = solo_i2c_init(solo_dev);
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if (ret)
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goto fail_probe;
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/* Setup the DMA engine */
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sdram = (solo_dev->nr_chans >= 8) ? 2 : 1;
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solo_reg_write(solo_dev, SOLO_DMA_CTRL,
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SOLO_DMA_CTRL_REFRESH_CYCLE(1) |
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SOLO_DMA_CTRL_SDRAM_SIZE(sdram) |
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SOLO_DMA_CTRL_SDRAM_CLK_INVERT |
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SOLO_DMA_CTRL_READ_CLK_SELECT |
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SOLO_DMA_CTRL_LATENCY(1));
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ret = solo_p2m_init(solo_dev);
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if (ret)
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goto fail_probe;
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ret = solo_disp_init(solo_dev);
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if (ret)
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goto fail_probe;
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ret = solo_gpio_init(solo_dev);
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if (ret)
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goto fail_probe;
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ret = solo_tw28_init(solo_dev);
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if (ret)
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goto fail_probe;
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ret = solo_v4l2_init(solo_dev);
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if (ret)
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goto fail_probe;
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ret = solo_enc_init(solo_dev);
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if (ret)
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goto fail_probe;
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ret = solo_enc_v4l2_init(solo_dev);
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if (ret)
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goto fail_probe;
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ret = solo_g723_init(solo_dev);
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if (ret)
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goto fail_probe;
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return 0;
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fail_probe:
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free_solo_dev(solo_dev);
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return ret;
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}
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static void __devexit solo_pci_remove(struct pci_dev *pdev)
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{
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struct solo_dev *solo_dev = pci_get_drvdata(pdev);
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free_solo_dev(solo_dev);
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}
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static struct pci_device_id solo_id_table[] = {
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/* 6010 based cards */
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{PCI_DEVICE(PCI_VENDOR_ID_SOFTLOGIC, PCI_DEVICE_ID_SOLO6010)},
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{PCI_DEVICE(PCI_VENDOR_ID_SOFTLOGIC, PCI_DEVICE_ID_SOLO6110),
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.driver_data = FLAGS_6110},
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{PCI_DEVICE(PCI_VENDOR_ID_BLUECHERRY, PCI_DEVICE_ID_NEUSOLO_4)},
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{PCI_DEVICE(PCI_VENDOR_ID_BLUECHERRY, PCI_DEVICE_ID_NEUSOLO_9)},
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{PCI_DEVICE(PCI_VENDOR_ID_BLUECHERRY, PCI_DEVICE_ID_NEUSOLO_16)},
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{PCI_DEVICE(PCI_VENDOR_ID_BLUECHERRY, PCI_DEVICE_ID_BC_SOLO_4)},
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{PCI_DEVICE(PCI_VENDOR_ID_BLUECHERRY, PCI_DEVICE_ID_BC_SOLO_9)},
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{PCI_DEVICE(PCI_VENDOR_ID_BLUECHERRY, PCI_DEVICE_ID_BC_SOLO_16)},
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/* 6110 based cards */
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{PCI_DEVICE(PCI_VENDOR_ID_BLUECHERRY, PCI_DEVICE_ID_BC_6110_4)},
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{PCI_DEVICE(PCI_VENDOR_ID_BLUECHERRY, PCI_DEVICE_ID_BC_6110_8)},
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{PCI_DEVICE(PCI_VENDOR_ID_BLUECHERRY, PCI_DEVICE_ID_BC_6110_16)},
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{0,}
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};
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MODULE_DEVICE_TABLE(pci, solo_id_table);
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static struct pci_driver solo_pci_driver = {
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.name = SOLO6X10_NAME,
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.id_table = solo_id_table,
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.probe = solo_pci_probe,
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.remove = solo_pci_remove,
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};
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module_pci_driver(solo_pci_driver);
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