nfs: disintegrate UAPI for nfs

This is to complete part of the Userspace API (UAPI) disintegration for which
the preparatory patches were pulled recently.  After these patches, userspace
headers will be segregated into:

        include/uapi/linux/.../foo.h

for the userspace interface stuff, and:

        include/linux/.../foo.h

for the strictly kernel internal stuff.

Signed-off-by: J. Bruce Fields <bfields@redhat.com>

1 files changed, 255 insertions, 0 deletions

diff --git a/drivers/media/pci/saa7134/saa7134-vbi.c b/drivers/media/pci/saa7134/saa7134-vbi.c
new file mode 100644
index 000000000000..e9aa94b807f1
--- /dev/null
+++ b/drivers/media/pci/saa7134/saa7134-vbi.c
@@ -0,0 +1,255 @@
+/*
+ *
+ * device driver for philips saa7134 based TV cards
+ * video4linux video interface
+ *
+ * (c) 2001,02 Gerd Knorr <kraxel@bytesex.org> [SuSE Labs]
+ *
+ *  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., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+#include <linux/init.h>
+#include <linux/list.h>
+#include <linux/module.h>
+#include <linux/kernel.h>
+
+#include "saa7134-reg.h"
+#include "saa7134.h"
+
+/* ------------------------------------------------------------------ */
+
+static unsigned int vbi_debug;
+module_param(vbi_debug, int, 0644);
+MODULE_PARM_DESC(vbi_debug,"enable debug messages [vbi]");
+
+static unsigned int vbibufs = 4;
+module_param(vbibufs, int, 0444);
+MODULE_PARM_DESC(vbibufs,"number of vbi buffers, range 2-32");
+
+#define dprintk(fmt, arg...)	if (vbi_debug) \
+	printk(KERN_DEBUG "%s/vbi: " fmt, dev->name , ## arg)
+
+/* ------------------------------------------------------------------ */
+
+#define VBI_LINE_COUNT     16
+#define VBI_LINE_LENGTH  2048
+#define VBI_SCALE       0x200
+
+static void task_init(struct saa7134_dev *dev, struct saa7134_buf *buf,
+		      int task)
+{
+	struct saa7134_tvnorm *norm = dev->tvnorm;
+
+	/* setup video scaler */
+	saa_writeb(SAA7134_VBI_H_START1(task), norm->h_start     &  0xff);
+	saa_writeb(SAA7134_VBI_H_START2(task), norm->h_start     >> 8);
+	saa_writeb(SAA7134_VBI_H_STOP1(task),  norm->h_stop      &  0xff);
+	saa_writeb(SAA7134_VBI_H_STOP2(task),  norm->h_stop      >> 8);
+	saa_writeb(SAA7134_VBI_V_START1(task), norm->vbi_v_start_0 &  0xff);
+	saa_writeb(SAA7134_VBI_V_START2(task), norm->vbi_v_start_0 >> 8);
+	saa_writeb(SAA7134_VBI_V_STOP1(task),  norm->vbi_v_stop_0  &  0xff);
+	saa_writeb(SAA7134_VBI_V_STOP2(task),  norm->vbi_v_stop_0  >> 8);
+
+	saa_writeb(SAA7134_VBI_H_SCALE_INC1(task),        VBI_SCALE & 0xff);
+	saa_writeb(SAA7134_VBI_H_SCALE_INC2(task),        VBI_SCALE >> 8);
+	saa_writeb(SAA7134_VBI_PHASE_OFFSET_LUMA(task),   0x00);
+	saa_writeb(SAA7134_VBI_PHASE_OFFSET_CHROMA(task), 0x00);
+
+	saa_writeb(SAA7134_VBI_H_LEN1(task), buf->vb.width   & 0xff);
+	saa_writeb(SAA7134_VBI_H_LEN2(task), buf->vb.width   >> 8);
+	saa_writeb(SAA7134_VBI_V_LEN1(task), buf->vb.height  & 0xff);
+	saa_writeb(SAA7134_VBI_V_LEN2(task), buf->vb.height  >> 8);
+
+	saa_andorb(SAA7134_DATA_PATH(task), 0xc0, 0x00);
+}
+
+/* ------------------------------------------------------------------ */
+
+static int buffer_activate(struct saa7134_dev *dev,
+			   struct saa7134_buf *buf,
+			   struct saa7134_buf *next)
+{
+	unsigned long control,base;
+
+	dprintk("buffer_activate [%p]\n",buf);
+	buf->vb.state = VIDEOBUF_ACTIVE;
+	buf->top_seen = 0;
+
+	task_init(dev,buf,TASK_A);
+	task_init(dev,buf,TASK_B);
+	saa_writeb(SAA7134_OFMT_DATA_A, 0x06);
+	saa_writeb(SAA7134_OFMT_DATA_B, 0x06);
+
+	/* DMA: setup channel 2+3 (= VBI Task A+B) */
+	base    = saa7134_buffer_base(buf);
+	control = SAA7134_RS_CONTROL_BURST_16 |
+		SAA7134_RS_CONTROL_ME |
+		(buf->pt->dma >> 12);
+	saa_writel(SAA7134_RS_BA1(2),base);
+	saa_writel(SAA7134_RS_BA2(2),base + buf->vb.size/2);
+	saa_writel(SAA7134_RS_PITCH(2),buf->vb.width);
+	saa_writel(SAA7134_RS_CONTROL(2),control);
+	saa_writel(SAA7134_RS_BA1(3),base);
+	saa_writel(SAA7134_RS_BA2(3),base + buf->vb.size/2);
+	saa_writel(SAA7134_RS_PITCH(3),buf->vb.width);
+	saa_writel(SAA7134_RS_CONTROL(3),control);
+
+	/* start DMA */
+	saa7134_set_dmabits(dev);
+	mod_timer(&dev->vbi_q.timeout, jiffies+BUFFER_TIMEOUT);
+
+	return 0;
+}
+
+static int buffer_prepare(struct videobuf_queue *q,
+			  struct videobuf_buffer *vb,
+			  enum v4l2_field field)
+{
+	struct saa7134_fh *fh   = q->priv_data;
+	struct saa7134_dev *dev = fh->dev;
+	struct saa7134_buf *buf = container_of(vb,struct saa7134_buf,vb);
+	struct saa7134_tvnorm *norm = dev->tvnorm;
+	unsigned int lines, llength, size;
+	int err;
+
+	lines   = norm->vbi_v_stop_0 - norm->vbi_v_start_0 +1;
+	if (lines > VBI_LINE_COUNT)
+		lines = VBI_LINE_COUNT;
+	llength = VBI_LINE_LENGTH;
+	size = lines * llength * 2;
+	if (0 != buf->vb.baddr  &&  buf->vb.bsize < size)
+		return -EINVAL;
+
+	if (buf->vb.size != size)
+		saa7134_dma_free(q,buf);
+
+	if (VIDEOBUF_NEEDS_INIT == buf->vb.state) {
+		struct videobuf_dmabuf *dma=videobuf_to_dma(&buf->vb);
+
+		buf->vb.width  = llength;
+		buf->vb.height = lines;
+		buf->vb.size   = size;
+		buf->pt        = &fh->pt_vbi;
+
+		err = videobuf_iolock(q,&buf->vb,NULL);
+		if (err)
+			goto oops;
+		err = saa7134_pgtable_build(dev->pci,buf->pt,
+					    dma->sglist,
+					    dma->sglen,
+					    saa7134_buffer_startpage(buf));
+		if (err)
+			goto oops;
+	}
+	buf->vb.state = VIDEOBUF_PREPARED;
+	buf->activate = buffer_activate;
+	buf->vb.field = field;
+	return 0;
+
+ oops:
+	saa7134_dma_free(q,buf);
+	return err;
+}
+
+static int
+buffer_setup(struct videobuf_queue *q, unsigned int *count, unsigned int *size)
+{
+	struct saa7134_fh *fh   = q->priv_data;
+	struct saa7134_dev *dev = fh->dev;
+	int llength,lines;
+
+	lines   = dev->tvnorm->vbi_v_stop_0 - dev->tvnorm->vbi_v_start_0 +1;
+	llength = VBI_LINE_LENGTH;
+	*size = lines * llength * 2;
+	if (0 == *count)
+		*count = vbibufs;
+	*count = saa7134_buffer_count(*size,*count);
+	return 0;
+}
+
+static void buffer_queue(struct videobuf_queue *q, struct videobuf_buffer *vb)
+{
+	struct saa7134_fh *fh = q->priv_data;
+	struct saa7134_dev *dev = fh->dev;
+	struct saa7134_buf *buf = container_of(vb,struct saa7134_buf,vb);
+
+	saa7134_buffer_queue(dev,&dev->vbi_q,buf);
+}
+
+static void buffer_release(struct videobuf_queue *q, struct videobuf_buffer *vb)
+{
+	struct saa7134_buf *buf = container_of(vb,struct saa7134_buf,vb);
+
+	saa7134_dma_free(q,buf);
+}
+
+struct videobuf_queue_ops saa7134_vbi_qops = {
+	.buf_setup    = buffer_setup,
+	.buf_prepare  = buffer_prepare,
+	.buf_queue    = buffer_queue,
+	.buf_release  = buffer_release,
+};
+
+/* ------------------------------------------------------------------ */
+
+int saa7134_vbi_init1(struct saa7134_dev *dev)
+{
+	INIT_LIST_HEAD(&dev->vbi_q.queue);
+	init_timer(&dev->vbi_q.timeout);
+	dev->vbi_q.timeout.function = saa7134_buffer_timeout;
+	dev->vbi_q.timeout.data     = (unsigned long)(&dev->vbi_q);
+	dev->vbi_q.dev              = dev;
+
+	if (vbibufs < 2)
+		vbibufs = 2;
+	if (vbibufs > VIDEO_MAX_FRAME)
+		vbibufs = VIDEO_MAX_FRAME;
+	return 0;
+}
+
+int saa7134_vbi_fini(struct saa7134_dev *dev)
+{
+	/* nothing */
+	return 0;
+}
+
+void saa7134_irq_vbi_done(struct saa7134_dev *dev, unsigned long status)
+{
+	spin_lock(&dev->slock);
+	if (dev->vbi_q.curr) {
+		dev->vbi_fieldcount++;
+		/* make sure we have seen both fields */
+		if ((status & 0x10) == 0x00) {
+			dev->vbi_q.curr->top_seen = 1;
+			goto done;
+		}
+		if (!dev->vbi_q.curr->top_seen)
+			goto done;
+
+		dev->vbi_q.curr->vb.field_count = dev->vbi_fieldcount;
+		saa7134_buffer_finish(dev,&dev->vbi_q,VIDEOBUF_DONE);
+	}
+	saa7134_buffer_next(dev,&dev->vbi_q);
+
+ done:
+	spin_unlock(&dev->slock);
+}
+
+/* ----------------------------------------------------------- */
+/*
+ * Local variables:
+ * c-basic-offset: 8
+ * End:
+ */