goldfish: R.I.P.

It is broken and it is not maintained by anyone since long time.

Signed-off-by: Gabor Juhos <juhosg@openwrt.org>

SVN-Revision: 34766

1 files changed, 0 insertions, 404 deletions

diff --git a/target/linux/goldfish/patches-2.6.30/0120--ARM-goldfish-Add-audio-driver-for-goldfish.patch b/target/linux/goldfish/patches-2.6.30/0120--ARM-goldfish-Add-audio-driver-for-goldfish.patch
deleted file mode 100644
index 23f4b8f..0000000
--- a/target/linux/goldfish/patches-2.6.30/0120--ARM-goldfish-Add-audio-driver-for-goldfish.patch
+++ /dev/null
@@ -1,404 +0,0 @@
-From aefe5257bf3ed9bf950ad962a63e5315566c2f97 Mon Sep 17 00:00:00 2001
-From: Mike Lockwood <lockwood@google.com>
-Date: Mon, 23 Jul 2007 09:31:54 -0400
-Subject: [PATCH 120/134] [ARM] goldfish: Add audio driver for goldfish.
-
-Signed-off-by: Mike A. Chan <mikechan@google.com>
----
- arch/arm/mach-goldfish/Makefile |    2 +-
- arch/arm/mach-goldfish/audio.c  |  379 +++++++++++++++++++++++++++++++++++++++
- 2 files changed, 380 insertions(+), 1 deletions(-)
- create mode 100644 arch/arm/mach-goldfish/audio.c
-
---- a/arch/arm/mach-goldfish/Makefile
-+++ b/arch/arm/mach-goldfish/Makefile
-@@ -4,6 +4,6 @@
- 
- # Object file lists.
- 
--obj-y				:= pdev_bus.o timer.o
-+obj-y				:= pdev_bus.o timer.o audio.o
- obj-$(CONFIG_MACH_GOLDFISH)	+= board-goldfish.o
- 
---- /dev/null
-+++ b/arch/arm/mach-goldfish/audio.c
-@@ -0,0 +1,379 @@
-+/* arch/arm/mach-goldfish/audio.c
-+**
-+** Copyright (C) 2007 Google, Inc.
-+**
-+** This software is licensed under the terms of the GNU General Public
-+** License version 2, as published by the Free Software Foundation, and
-+** may be copied, distributed, and modified under those terms.
-+**
-+** 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.
-+**
-+*/
-+
-+#include <linux/module.h>
-+#include <linux/miscdevice.h>
-+#include <linux/fs.h>
-+#include <linux/platform_device.h>
-+
-+#include <linux/types.h>
-+#include <linux/pci.h>
-+#include <linux/interrupt.h>
-+
-+#include <asm/types.h>
-+#include <asm/io.h>
-+#include <asm/uaccess.h>
-+
-+
-+MODULE_AUTHOR("Google, Inc.");
-+MODULE_DESCRIPTION("Android QEMU Audio Driver");
-+MODULE_LICENSE("GPL");
-+MODULE_VERSION("1.0");
-+
-+struct goldfish_audio {
-+	uint32_t reg_base;
-+	int irq;
-+	spinlock_t lock;
-+	wait_queue_head_t wait;
-+	
-+	char __iomem *buffer_virt;      /* combined buffer virtual address */
-+	unsigned long buffer_phys;      /* combined buffer physical address */
-+
-+	char __iomem *write_buffer1;    /* write buffer 1 virtual address */
-+	char __iomem *write_buffer2;    /* write buffer 2 virtual address */
-+	char __iomem *read_buffer;      /* read buffer virtual address */
-+	int buffer_status;
-+	int read_supported;         /* true if we have audio input support */
-+};
-+
-+/* We will allocate two read buffers and two write buffers.
-+   Having two read buffers facilitate stereo -> mono conversion.
-+   Having two write buffers facilitate interleaved IO.
-+*/
-+#define READ_BUFFER_SIZE        16384
-+#define WRITE_BUFFER_SIZE       16384
-+#define COMBINED_BUFFER_SIZE    ((2 * READ_BUFFER_SIZE) + (2 * WRITE_BUFFER_SIZE))
-+
-+#define GOLDFISH_AUDIO_READ(data, addr)   (readl(data->reg_base + addr))
-+#define GOLDFISH_AUDIO_WRITE(data, addr, x)   (writel(x, data->reg_base + addr))
-+
-+/* temporary variable used between goldfish_audio_probe() and goldfish_audio_open() */
-+static struct goldfish_audio* audio_data;
-+
-+enum {
-+	/* audio status register */
-+	AUDIO_INT_STATUS	= 0x00, 
-+	/* set this to enable IRQ */
-+	AUDIO_INT_ENABLE	= 0x04,
-+	/* set these to specify buffer addresses */
-+	AUDIO_SET_WRITE_BUFFER_1 = 0x08,
-+	AUDIO_SET_WRITE_BUFFER_2 = 0x0C,
-+	/* set number of bytes in buffer to write */
-+	AUDIO_WRITE_BUFFER_1  = 0x10,
-+	AUDIO_WRITE_BUFFER_2  = 0x14,
-+
-+	/* true if audio input is supported */
-+	AUDIO_READ_SUPPORTED = 0x18,
-+	/* buffer to use for audio input */
-+	AUDIO_SET_READ_BUFFER = 0x1C,
-+	
-+	/* driver writes number of bytes to read */
-+	AUDIO_START_READ  = 0x20,
-+
-+	/* number of bytes available in read buffer */
-+	AUDIO_READ_BUFFER_AVAILABLE  = 0x24,
-+
-+	/* AUDIO_INT_STATUS bits */
-+	
-+	/* this bit set when it is safe to write more bytes to the buffer */
-+	AUDIO_INT_WRITE_BUFFER_1_EMPTY	= 1U << 0,
-+	AUDIO_INT_WRITE_BUFFER_2_EMPTY	= 1U << 1,
-+	AUDIO_INT_READ_BUFFER_FULL      = 1U << 2,
-+	
-+	AUDIO_INT_MASK                  = AUDIO_INT_WRITE_BUFFER_1_EMPTY | 
-+	                                  AUDIO_INT_WRITE_BUFFER_2_EMPTY | 
-+	                                  AUDIO_INT_READ_BUFFER_FULL,
-+};
-+
-+
-+static atomic_t open_count = ATOMIC_INIT(0);
-+
-+
-+static ssize_t goldfish_audio_read(struct file *fp, char __user *buf,
-+							size_t count, loff_t *pos)
-+{
-+	struct goldfish_audio* data = fp->private_data;
-+	int length;
-+	int result = 0;
-+	
-+	if (!data->read_supported)
-+		return -ENODEV;
-+
-+	while (count > 0) {
-+		length = (count > READ_BUFFER_SIZE ? READ_BUFFER_SIZE : count);
-+		GOLDFISH_AUDIO_WRITE(data, AUDIO_START_READ, length);
-+
-+		wait_event_interruptible(data->wait, (data->buffer_status & AUDIO_INT_READ_BUFFER_FULL));
-+
-+		length = GOLDFISH_AUDIO_READ(data, AUDIO_READ_BUFFER_AVAILABLE);
-+   
-+		/* copy data to user space */
-+		if (copy_to_user(buf, data->read_buffer, length))
-+		{
-+			printk("copy_from_user failed!\n");
-+			return -EFAULT;
-+		}
-+		
-+		result += length;
-+		buf += length;
-+		count -= length;
-+	}
-+
-+	return result;
-+}
-+
-+static ssize_t goldfish_audio_write(struct file *fp, const char __user *buf,
-+							 size_t count, loff_t *pos)
-+{
-+	struct goldfish_audio* data = fp->private_data;
-+	unsigned long irq_flags;
-+	ssize_t result = 0;
-+	char __iomem *kbuf;
-+
-+	while (count > 0)
-+	{
-+		ssize_t copy = count;
-+		if (copy > WRITE_BUFFER_SIZE)
-+			copy = WRITE_BUFFER_SIZE;
-+		wait_event_interruptible(data->wait, 
-+				(data->buffer_status & (AUDIO_INT_WRITE_BUFFER_1_EMPTY | AUDIO_INT_WRITE_BUFFER_2_EMPTY)));
-+		
-+		if ((data->buffer_status & AUDIO_INT_WRITE_BUFFER_1_EMPTY) != 0) {
-+			kbuf = data->write_buffer1;
-+		} else {
-+			kbuf = data->write_buffer2;
-+		}
-+
-+		/* copy from user space to the appropriate buffer */
-+		if (copy_from_user(kbuf, buf, copy))
-+		{
-+			printk("copy_from_user failed!\n");
-+			result = -EFAULT;
-+			break;
-+		}
-+		else
-+		{
-+			spin_lock_irqsave(&data->lock, irq_flags);
-+
-+			/* clear the buffer empty flag, and signal the emulator to start writing the buffer */
-+			if (kbuf == data->write_buffer1) {
-+				data->buffer_status &= ~AUDIO_INT_WRITE_BUFFER_1_EMPTY;
-+				GOLDFISH_AUDIO_WRITE(data, AUDIO_WRITE_BUFFER_1, copy);
-+			} else {
-+				data->buffer_status &= ~AUDIO_INT_WRITE_BUFFER_2_EMPTY;
-+				GOLDFISH_AUDIO_WRITE(data, AUDIO_WRITE_BUFFER_2, copy);
-+			}
-+
-+			spin_unlock_irqrestore(&data->lock, irq_flags);
-+		}
-+ 
-+		buf += copy;
-+		result += copy;
-+		count -= copy;
-+	}
-+
-+	return result;
-+}
-+
-+static int goldfish_audio_open(struct inode *ip, struct file *fp)
-+{
-+	if (!audio_data)
-+		return -ENODEV;
-+
-+	if (atomic_inc_return(&open_count) == 1) 
-+	{
-+		fp->private_data = audio_data;
-+		audio_data->buffer_status = (AUDIO_INT_WRITE_BUFFER_1_EMPTY | AUDIO_INT_WRITE_BUFFER_2_EMPTY);
-+		GOLDFISH_AUDIO_WRITE(audio_data, AUDIO_INT_ENABLE, AUDIO_INT_MASK);
-+		return 0;
-+	} 
-+	else 
-+	{
-+		atomic_dec(&open_count);
-+		return -EBUSY;
-+	}
-+}
-+
-+static int goldfish_audio_release(struct inode *ip, struct file* fp)
-+{
-+	atomic_dec(&open_count);
-+	GOLDFISH_AUDIO_WRITE(audio_data, AUDIO_INT_ENABLE, 0);
-+	return 0;
-+}
-+	   
-+static int goldfish_audio_ioctl(struct inode* ip, struct file* fp, unsigned int cmd, unsigned long arg)
-+{
-+	/* temporary workaround, until we switch to the ALSA API */
-+	if (cmd == 315)
-+		return -1;
-+	else
-+		return 0;
-+}
-+
-+static irqreturn_t
-+goldfish_audio_interrupt(int irq, void *dev_id)
-+{
-+	unsigned long irq_flags;
-+	struct goldfish_audio	*data = dev_id;
-+	uint32_t status;
-+
-+	spin_lock_irqsave(&data->lock, irq_flags);
-+	
-+	/* read buffer status flags */
-+	status = GOLDFISH_AUDIO_READ(data, AUDIO_INT_STATUS);
-+	status &= AUDIO_INT_MASK;
-+	/* if buffers are newly empty, wake up blocked goldfish_audio_write() call */
-+	if(status) {
-+		data->buffer_status = status;
-+		wake_up(&data->wait);
-+	}
-+	
-+	spin_unlock_irqrestore(&data->lock, irq_flags);
-+	return status ? IRQ_HANDLED : IRQ_NONE;
-+}
-+
-+/* file operations for /dev/eac */
-+static struct file_operations goldfish_audio_fops = {
-+	.owner = THIS_MODULE,
-+	.read = goldfish_audio_read,
-+	.write = goldfish_audio_write,
-+	.open = goldfish_audio_open,
-+	.release = goldfish_audio_release,
-+   .ioctl = goldfish_audio_ioctl,
-+
-+};
-+	
-+static struct miscdevice goldfish_audio_device = {
-+	.minor = MISC_DYNAMIC_MINOR,
-+	.name = "eac",
-+	.fops = &goldfish_audio_fops,
-+};
-+
-+static int goldfish_audio_probe(struct platform_device *pdev)
-+{
-+	int ret;
-+	struct resource *r;
-+	struct goldfish_audio *data;
-+	dma_addr_t buf_addr;
-+
-+printk("goldfish_audio_probe\n");
-+	data = kzalloc(sizeof(*data), GFP_KERNEL);
-+	if(data == NULL) {
-+		ret = -ENOMEM;
-+		goto err_data_alloc_failed;
-+	}
-+	spin_lock_init(&data->lock);
-+	init_waitqueue_head(&data->wait);
-+	platform_set_drvdata(pdev, data);
-+
-+	r = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-+	if(r == NULL) {
-+		printk("platform_get_resource failed\n");
-+		ret = -ENODEV;
-+		goto err_no_io_base;
-+	}
-+	data->reg_base = IO_ADDRESS(r->start - IO_START);
-+
-+	data->irq = platform_get_irq(pdev, 0);
-+	if(data->irq < 0) {
-+		printk("platform_get_irq failed\n");
-+		ret = -ENODEV;
-+		goto err_no_irq;
-+	}
-+
-+	data->buffer_virt = dma_alloc_writecombine(&pdev->dev, COMBINED_BUFFER_SIZE,
-+												&buf_addr, GFP_KERNEL);
-+	if(data->buffer_virt == 0) {
-+		ret = -ENOMEM;
-+		goto err_alloc_write_buffer_failed;
-+	}
-+	data->buffer_phys = buf_addr;
-+	data->write_buffer1 = data->buffer_virt;
-+	data->write_buffer2 = data->buffer_virt + WRITE_BUFFER_SIZE;
-+	data->read_buffer = data->buffer_virt + 2 * WRITE_BUFFER_SIZE;
-+	
-+	ret = request_irq(data->irq, goldfish_audio_interrupt, IRQF_SHARED, pdev->name, data);
-+	if(ret)
-+		goto err_request_irq_failed;
-+
-+	if((ret = misc_register(&goldfish_audio_device))) 
-+	{
-+		printk("misc_register returned %d in goldfish_audio_init\n", ret);
-+		goto err_misc_register_failed;
-+	}
-+
-+	
-+	GOLDFISH_AUDIO_WRITE(data, AUDIO_SET_WRITE_BUFFER_1, buf_addr);
-+	GOLDFISH_AUDIO_WRITE(data, AUDIO_SET_WRITE_BUFFER_2, buf_addr + WRITE_BUFFER_SIZE);
-+
-+	data->read_supported = GOLDFISH_AUDIO_READ(data, AUDIO_READ_SUPPORTED);
-+	if (data->read_supported)
-+		GOLDFISH_AUDIO_WRITE(data, AUDIO_SET_READ_BUFFER, buf_addr + 2 * WRITE_BUFFER_SIZE);
-+
-+	audio_data = data;
-+	return 0;
-+
-+err_misc_register_failed:
-+err_request_irq_failed:
-+	dma_free_writecombine(&pdev->dev, COMBINED_BUFFER_SIZE, data->buffer_virt, data->buffer_phys);
-+err_alloc_write_buffer_failed:
-+err_no_irq:
-+err_no_io_base:
-+	kfree(data);
-+err_data_alloc_failed:
-+	return ret;
-+}
-+
-+static int goldfish_audio_remove(struct platform_device *pdev)
-+{
-+	struct goldfish_audio *data = platform_get_drvdata(pdev);
-+
-+	misc_deregister(&goldfish_audio_device);
-+	free_irq(data->irq, data);
-+	dma_free_writecombine(&pdev->dev, COMBINED_BUFFER_SIZE, data->buffer_virt, data->buffer_phys);
-+	kfree(data);
-+	audio_data = NULL;
-+	return 0;
-+}
-+
-+static struct platform_driver goldfish_audio_driver = {
-+	.probe		= goldfish_audio_probe,
-+	.remove		= goldfish_audio_remove,
-+	.driver = {
-+		.name = "goldfish_audio"
-+	}
-+};
-+
-+static int __init goldfish_audio_init(void)
-+{
-+	int ret;
-+
-+	ret = platform_driver_register(&goldfish_audio_driver);
-+	if (ret < 0)
-+	{
-+		printk("platform_driver_register returned %d\n", ret);
-+		return ret;
-+	}
-+
-+	return ret;
-+}
-+
-+static void __exit goldfish_audio_exit(void)
-+{
-+	platform_driver_unregister(&goldfish_audio_driver);
-+}
-+
-+module_init(goldfish_audio_init);
-+module_exit(goldfish_audio_exit);