Staging: solo6x10: New driver (staging) for Softlogic 6x10

This driver supports Softlogic 6x10 based codec cards Signed-off-by: Ben Collins <bcollins@bluecherry.net> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
git-mirror · Jun 22, 2010 · faa4fd2 · faa4fd2
1 parent 412b2d0
commit faa4fd2
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diff --git a/drivers/staging/solo6x10/Kconfig b/drivers/staging/solo6x10/Kconfig
@@ -0,0 +1,7 @@
+config SOLO6X10
+	tristate "Softlogic 6x10 MPEG codec cards"
+	depends on PCI && VIDEO_DEV
+	select VIDEOBUF_DMA_CONTIG
+	---help---
+	  This driver supports the Softlogic based MPEG-4 and h.264 codec
+	  codec cards.
diff --git a/drivers/staging/solo6x10/Makefile b/drivers/staging/solo6x10/Makefile
@@ -0,0 +1,6 @@
+solo6x10-objs	:= solo6010-core.o solo6010-i2c.o solo6010-p2m.o \
+		   solo6010-v4l2.o solo6010-tw28.o solo6010-gpio.o \
+		   solo6010-disp.o solo6010-enc.o solo6010-v4l2-enc.o \
+		   solo6010-g723.o
+
+obj-$(CONFIG_SOLO6X10) := solo6x10.o
diff --git a/drivers/staging/solo6x10/solo6010-core.c b/drivers/staging/solo6x10/solo6010-core.c
@@ -0,0 +1,282 @@
+/*
+ * Copyright (C) 2010 Bluecherry, LLC www.bluecherrydvr.com
+ * Copyright (C) 2010 Ben Collins <bcollins@bluecherry.net>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/pci.h>
+#include <linux/interrupt.h>
+#include <linux/videodev2.h>
+
+#include "solo6010.h"
+#include "solo6010-tw28.h"
+
+MODULE_DESCRIPTION("Softlogic 6010 MP4 Encoder/Decoder V4L2/ALSA Driver");
+MODULE_AUTHOR("Ben Collins <bcollins@bluecherry.net>");
+MODULE_VERSION(SOLO6010_VERSION);
+MODULE_LICENSE("GPL");
+
+void solo6010_irq_on(struct solo6010_dev *solo_dev, u32 mask)
+{
+	solo_dev->irq_mask |= mask;
+	solo_reg_write(solo_dev, SOLO_IRQ_ENABLE, solo_dev->irq_mask);
+}
+
+void solo6010_irq_off(struct solo6010_dev *solo_dev, u32 mask)
+{
+	solo_dev->irq_mask &= ~mask;
+	solo_reg_write(solo_dev, SOLO_IRQ_ENABLE, solo_dev->irq_mask);
+}
+
+/* XXX We should check the return value of the sub-device ISR's */
+static irqreturn_t solo6010_isr(int irq, void *data)
+{
+	struct solo6010_dev *solo_dev = data;
+	u32 status;
+	int i;
+
+	status = solo_reg_read(solo_dev, SOLO_IRQ_STAT);
+	if (!status)
+		return IRQ_NONE;
+
+	if (status & ~solo_dev->irq_mask) {
+		solo_reg_write(solo_dev, SOLO_IRQ_STAT,
+			       status & ~solo_dev->irq_mask);
+		status &= solo_dev->irq_mask;
+	}
+
+	if (status & SOLO_IRQ_PCI_ERR) {
+		u32 err = solo_reg_read(solo_dev, SOLO_PCI_ERR);
+		solo_p2m_error_isr(solo_dev, err);
+		solo_reg_write(solo_dev, SOLO_IRQ_STAT, SOLO_IRQ_PCI_ERR);
+	}
+
+	for (i = 0; i < SOLO_NR_P2M; i++)
+		if (status & SOLO_IRQ_P2M(i))
+			solo_p2m_isr(solo_dev, i);
+
+	if (status & SOLO_IRQ_IIC)
+		solo_i2c_isr(solo_dev);
+
+	if (status & SOLO_IRQ_VIDEO_IN)
+		solo_video_in_isr(solo_dev);
+
+	/* Call this first so enc gets detected flag set */
+	if (status & SOLO_IRQ_MOTION)
+		solo_motion_isr(solo_dev);
+
+	if (status & SOLO_IRQ_ENCODER)
+		solo_enc_v4l2_isr(solo_dev);
+
+	if (status & SOLO_IRQ_G723)
+		solo_g723_isr(solo_dev);
+
+	return IRQ_HANDLED;
+}
+
+static void free_solo_dev(struct solo6010_dev *solo_dev)
+{
+	struct pci_dev *pdev;
+
+	if (!solo_dev)
+		return;
+
+	pdev = solo_dev->pdev;
+
+	/* If we never initialized the PCI device, then nothing else
+	 * below here needs cleanup */
+	if (!pdev) {
+		kfree(solo_dev);
+		return;
+	}
+
+	/* Bring down the sub-devices first */
+	solo_g723_exit(solo_dev);
+	solo_enc_v4l2_exit(solo_dev);
+	solo_enc_exit(solo_dev);
+	solo_v4l2_exit(solo_dev);
+	solo_disp_exit(solo_dev);
+	solo_gpio_exit(solo_dev);
+	solo_p2m_exit(solo_dev);
+	solo_i2c_exit(solo_dev);
+
+	/* Now cleanup the PCI device */
+	if (solo_dev->reg_base) {
+		solo6010_irq_off(solo_dev, ~0);
+		pci_iounmap(pdev, solo_dev->reg_base);
+		free_irq(pdev->irq, solo_dev);
+	}
+
+	pci_release_regions(pdev);
+	pci_disable_device(pdev);
+	pci_set_drvdata(pdev, NULL);
+
+	kfree(solo_dev);
+}
+
+static int __devinit solo6010_pci_probe(struct pci_dev *pdev,
+					const struct pci_device_id *id)
+{
+	struct solo6010_dev *solo_dev;
+	int ret;
+	int sdram;
+	u8 chip_id;
+
+	if ((solo_dev = kzalloc(sizeof(*solo_dev), GFP_KERNEL)) == NULL)
+		return -ENOMEM;
+
+	solo_dev->pdev = pdev;
+	spin_lock_init(&solo_dev->reg_io_lock);
+	pci_set_drvdata(pdev, solo_dev);
+
+	if ((ret = pci_enable_device(pdev)))
+		goto fail_probe;
+
+	pci_set_master(pdev);
+
+	if ((ret = pci_request_regions(pdev, SOLO6010_NAME)))
+		goto fail_probe;
+
+	if ((solo_dev->reg_base = pci_ioremap_bar(pdev, 0)) == NULL) {
+		ret = -ENOMEM;
+		goto fail_probe;
+	}
+
+	chip_id = solo_reg_read(solo_dev, SOLO_CHIP_OPTION) &
+					SOLO_CHIP_ID_MASK;
+	switch (chip_id) {
+		case 7:
+			solo_dev->nr_chans = 16;
+			solo_dev->nr_ext = 5;
+			break;
+		case 6:
+			solo_dev->nr_chans = 8;
+			solo_dev->nr_ext = 2;
+			break;
+		default:
+			dev_warn(&pdev->dev, "Invalid chip_id 0x%02x, "
+				 "defaulting to 4 channels\n",
+				 chip_id);
+		case 5:
+			solo_dev->nr_chans = 4;
+			solo_dev->nr_ext = 1;
+	}
+
+	/* Disable all interrupts to start */
+	solo6010_irq_off(solo_dev, ~0);
+
+	/* Initial global settings */
+	solo_reg_write(solo_dev, SOLO_SYS_CFG, SOLO_SYS_CFG_SDRAM64BIT |
+		       SOLO_SYS_CFG_INPUTDIV(25) |
+		       SOLO_SYS_CFG_FEEDBACKDIV((SOLO_CLOCK_MHZ * 2) - 2) |
+		       SOLO_SYS_CFG_OUTDIV(3));
+	solo_reg_write(solo_dev, SOLO_TIMER_CLOCK_NUM, SOLO_CLOCK_MHZ - 1);
+
+	/* PLL locking time of 1ms */
+	mdelay(1);
+
+	ret = request_irq(pdev->irq, solo6010_isr, IRQF_SHARED, SOLO6010_NAME,
+			  solo_dev);
+	if (ret)
+		goto fail_probe;
+
+	/* Handle this from the start */
+	solo6010_irq_on(solo_dev, SOLO_IRQ_PCI_ERR);
+
+	if ((ret = solo_i2c_init(solo_dev)))
+		goto fail_probe;
+
+	/* Setup the DMA engine */
+	sdram = (solo_dev->nr_chans >= 8) ? 2 : 1;
+	solo_reg_write(solo_dev, SOLO_DMA_CTRL,
+		       SOLO_DMA_CTRL_REFRESH_CYCLE(1) |
+		       SOLO_DMA_CTRL_SDRAM_SIZE(sdram) |
+		       SOLO_DMA_CTRL_SDRAM_CLK_INVERT |
+		       SOLO_DMA_CTRL_READ_CLK_SELECT |
+		       SOLO_DMA_CTRL_LATENCY(1));
+
+	if ((ret = solo_p2m_init(solo_dev)))
+		goto fail_probe;
+
+	if ((ret = solo_disp_init(solo_dev)))
+		goto fail_probe;
+
+	if ((ret = solo_gpio_init(solo_dev)))
+		goto fail_probe;
+
+	if ((ret = solo_tw28_init(solo_dev)))
+		goto fail_probe;
+
+	if ((ret = solo_v4l2_init(solo_dev)))
+		goto fail_probe;
+
+	if ((ret = solo_enc_init(solo_dev)))
+		goto fail_probe;
+
+	if ((ret = solo_enc_v4l2_init(solo_dev)))
+		goto fail_probe;
+
+	if ((ret = solo_g723_init(solo_dev)))
+		goto fail_probe;
+
+	return 0;
+
+fail_probe:
+	free_solo_dev(solo_dev);
+	return ret;
+}
+
+static void __devexit solo6010_pci_remove(struct pci_dev *pdev)
+{
+	struct solo6010_dev *solo_dev = pci_get_drvdata(pdev);
+
+	free_solo_dev(solo_dev);
+}
+
+static struct pci_device_id solo6010_id_table[] = {
+	{PCI_DEVICE(PCI_VENDOR_ID_SOFTLOGIC, PCI_DEVICE_ID_SOLO6010)},
+	{PCI_DEVICE(PCI_VENDOR_ID_BLUECHERRY, PCI_DEVICE_ID_NEUSOLO_4)},
+	{PCI_DEVICE(PCI_VENDOR_ID_BLUECHERRY, PCI_DEVICE_ID_NEUSOLO_9)},
+	{PCI_DEVICE(PCI_VENDOR_ID_BLUECHERRY, PCI_DEVICE_ID_NEUSOLO_16)},
+	{PCI_DEVICE(PCI_VENDOR_ID_BLUECHERRY, PCI_DEVICE_ID_COMMSOLO_4)},
+	{PCI_DEVICE(PCI_VENDOR_ID_BLUECHERRY, PCI_DEVICE_ID_COMMSOLO_9)},
+	{PCI_DEVICE(PCI_VENDOR_ID_BLUECHERRY, PCI_DEVICE_ID_COMMSOLO_16)},
+	{0,}
+};
+
+MODULE_DEVICE_TABLE(pci, solo6010_id_table);
+
+static struct pci_driver solo6010_pci_driver = {
+	.name = SOLO6010_NAME,
+	.id_table = solo6010_id_table,
+	.probe = solo6010_pci_probe,
+	.remove = solo6010_pci_remove,
+};
+
+static int __init solo6010_module_init(void)
+{
+	return pci_register_driver(&solo6010_pci_driver);
+}
+
+static void __exit solo6010_module_exit(void)
+{
+	pci_unregister_driver(&solo6010_pci_driver);
+}
+
+module_init(solo6010_module_init);
+module_exit(solo6010_module_exit);