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Subject[PATCH 2.4.5-ac12] New Sony Vaio Motion Eye camera driver
Hi,

This patch (to be applied on top of the previous sonypi patch) adds a new
driver for the Sony Vaio MotionEye camera (the one found in the Picturebook
models).

The driver does not yet support overlay (no docs... :-( ), but it does support
grabbing, jpeg snapshots and mjpeg compressed videos (through a private API,
documented in <file:Documentation/video4linux/meye.txt>).

Until the alcove-labs web site updates, you can download the 'motioneye'
application documented in meye.txt from:
http://mapage.noos.fr/pop/sonypi
and
http://mapage.noos.fr/pop/meye

Stelian.

diff -uNr --exclude-from=dontdiff linux-2.4.5-ac12.orig/CREDITS linux-2.4.5-ac12/CREDITS
--- linux-2.4.5-ac12.orig/CREDITS Sun Jun 10 13:41:47 2001
+++ linux-2.4.5-ac12/CREDITS Sun Jun 10 14:12:55 2001
@@ -2249,6 +2249,15 @@
E: ken@halcyon.com
D: CDROM driver "sonycd535" (Sony CDU-535/531)

+N: Stelian Pop
+E: stelian.pop@fr.alcove.com
+P: 1024D/EDBB6147 7B36 0E07 04BC 11DC A7A0 D3F7 7185 9E7A EDBB 6147
+D: sonypi, meye drivers, mct_u232 usb serial hacks
+S: Alcôve
+S: 153, bd. Anatole France
+S: 93200 Saint Denis
+S: France
+
N: Frederic Potter
E: fpotter@cirpack.com
D: Some PCI kernel support
diff -uNr --exclude-from=dontdiff linux-2.4.5-ac12.orig/Documentation/Configure.help linux-2.4.5-ac12/Documentation/Configure.help
--- linux-2.4.5-ac12.orig/Documentation/Configure.help Sun Jun 10 13:41:47 2001
+++ linux-2.4.5-ac12/Documentation/Configure.help Sun Jun 10 14:23:54 2001
@@ -19279,6 +19279,20 @@
module called pms.o ( = code which can be inserted in and removed
from the running kernel whenever you want). If you want to compile
it as a module, say M here and read <file:Documentation/modules.txt>.
+
+Sony Vaio Picturebook Motion Eye Video for Linux
+CONFIG_VIDEO_MEYE
+ This is the video4linux driver for the Motion Eye camera found
+ in the Vaio Picturebook laptops. Please read the material in
+ <file:Documentation/video4linux/meye.txt> for more information.
+
+ If you say Y or M here, you need to say Y or M to "Sony Programmable
+ I/O Control Device" in the character device section.
+
+ This driver is available as a module called meye.o ( = code
+ which can be inserted in and removed from the running kernel
+ whenever you want). If you want to compile it as a module, say M
+ here and read <file:Documentation/modules.txt>.

IBM's S/390 architecture
CONFIG_ARCH_S390
diff -uNr --exclude-from=dontdiff linux-2.4.5-ac12.orig/Documentation/video4linux/meye.txt linux-2.4.5-ac12/Documentation/video4linux/meye.txt
--- linux-2.4.5-ac12.orig/Documentation/video4linux/meye.txt Thu Jan 1 01:00:00 1970
+++ linux-2.4.5-ac12/Documentation/video4linux/meye.txt Sun Jun 10 13:56:48 2001
@@ -0,0 +1,102 @@
+Vaio Picturebook Motion Eye Camera Driver Readme
+------------------------------------------------
+ Copyright (C) 2001 Stelian Pop <stelian.pop@fr.alcove.com>, Alcôve
+ Copyright (C) 2000 Andrew Tridgell <tridge@samba.org>
+
+This driver enable the use of video4linux compatible applications with the
+Motion Eye camera.
+
+It can do at maximum 30 fps @ 320x240 or 15 fps @ 640x480.
+
+Grabbing is supported in packed YUV colorspace only.
+
+MJPEG hardware grabbing is supported via a private API (see below).
+
+Module options:
+---------------
+
+ gbuffers: number of capture buffers, default is 2 (32 max)
+
+ gbufsize: size of each capture buffer, default is 614400
+
+ video_nr: video device to register (0 = /dev/video0, etc)
+
+Module use:
+-----------
+
+In order to automatically load the meye module on use, you can put those lines
+in your /etc/modules.conf file:
+
+ alias char-major-81 videodev
+ alias char-major-81-0 meye
+ options meye gbuffers=32
+
+Usage:
+------
+
+ xawtv >= 3.49 (<http://bytesex.org/xawtv/>)
+ for display and uncompressed video capture:
+
+ xawtv -c /dev/video0 -geometry 640x480
+ or
+ xawtv -c /dev/video0 -geometry 320x240
+
+ motioneye (<http://www.alcove-labs.org/en/software/meye/>)
+ for getting ppm or jpg snapshots, mjpeg video
+
+Private API:
+------------
+
+ The driver supports frame grabbing with the video4linux API, so
+ all video4linux tools (like xawtv) should work with this driver.
+
+ Besides the video4linux interface, the driver has a private interface
+ for accessing the Motion Eye extended parameters (camera sharpness,
+ agc, video framerate), the shapshot and the MJPEG capture facilities.
+
+ This interface consists of several ioctls (prototypes and structures
+ can be found in include/linux/meye.h):
+
+ MEYEIOC_G_PARAMS
+ MEYEIOC_S_PARAMS
+ Get and set the extended parameters of the motion eye camera.
+ The user should always query the current parameters with
+ MEYEIOC_G_PARAMS, change what he likes and then issue the
+ MEYEIOC_S_PARAMS call (checking for -EINVAL). The extended
+ parameters are described by the meye_params structure.
+
+
+ MEYEIOC_QBUF_CAPT
+ Queue a buffer for capture (the buffers must have been
+ obtained with a VIDIOCGMBUF call and mmap'ed by the
+ application). The argument to MEYEIOC_QBUF_CAPT is the
+ buffer number to queue (or -1 to end capture). The first
+ call to MEYEIOC_QBUF_CAPT starts the streaming capture.
+
+ MEYEIOC_SYNC
+ Takes as an argument the buffer number you want to sync.
+ This ioctl blocks untils the buffer is filled and ready
+ for the application to use. It returns the buffer size.
+
+ MEYEIOC_STILLCAPT
+ MEYEIOC_STILLJCAPT
+ Takes a snapshot in an uncompressed or compressed jpeg format.
+ This ioctl blocks until the snapshot is done and returns (for
+ jpeg snapshot) the size of the image. The image data is
+ available from the first mmap'ed buffer.
+
+ Look at the 'motioneye' application code for an actual example.
+
+Bugs / Todo:
+------------
+
+ - overlay output is not supported (although the camera is capable of).
+ (it should not be too hard to to it, provided we found how...)
+
+ - mjpeg hardware playback doesn't work (depends on overlay...)
+
+ - rewrite the driver to use some commun video4linux API for snapshot
+ and mjpeg capture. Unfortunately, video4linux1 does not permit it,
+ the BUZ API seems to be targeted to TV cards only. The video4linux 2
+ API may be an option, if it goes into the kernel (maybe 2.5
+ material ?).
diff -uNr --exclude-from=dontdiff linux-2.4.5-ac12.orig/drivers/media/video/Config.in linux-2.4.5-ac12/drivers/media/video/Config.in
--- linux-2.4.5-ac12.orig/drivers/media/video/Config.in Sun Jun 10 13:41:57 2001
+++ linux-2.4.5-ac12/drivers/media/video/Config.in Thu Jun 7 15:51:55 2001
@@ -47,5 +47,8 @@
fi
dep_tristate ' Zoran ZR36057/36060 Video For Linux' CONFIG_VIDEO_ZORAN $CONFIG_VIDEO_DEV $CONFIG_PCI $CONFIG_I2C
dep_tristate ' Zoran ZR36120/36125 Video For Linux' CONFIG_VIDEO_ZR36120 $CONFIG_VIDEO_DEV $CONFIG_PCI $CONFIG_I2C
+if [ "$CONFIG_EXPERIMENTAL" = "y" ]; then
+ dep_tristate ' Sony Vaio Picturebook Motion Eye Video For Linux' CONFIG_VIDEO_MEYE $CONFIG_VIDEO_DEV $CONFIG_PCI $CONFIG_SONYPI
+fi

endmenu
diff -uNr --exclude-from=dontdiff linux-2.4.5-ac12.orig/drivers/media/video/Makefile linux-2.4.5-ac12/drivers/media/video/Makefile
--- linux-2.4.5-ac12.orig/drivers/media/video/Makefile Sun Jun 10 13:41:57 2001
+++ linux-2.4.5-ac12/drivers/media/video/Makefile Thu Jun 7 15:51:55 2001
@@ -53,6 +53,7 @@
obj-$(CONFIG_VIDEO_CPIA) += cpia.o
obj-$(CONFIG_VIDEO_CPIA_PP) += cpia_pp.o
obj-$(CONFIG_VIDEO_CPIA_USB) += cpia_usb.o
+obj-$(CONFIG_VIDEO_MEYE) += meye.o
obj-$(CONFIG_TUNER_3036) += tuner-3036.o

# Extract lists of the multi-part drivers.
diff -uNr --exclude-from=dontdiff linux-2.4.5-ac12.orig/drivers/media/video/meye.c linux-2.4.5-ac12/drivers/media/video/meye.c
--- linux-2.4.5-ac12.orig/drivers/media/video/meye.c Thu Jan 1 01:00:00 1970
+++ linux-2.4.5-ac12/drivers/media/video/meye.c Fri Jun 8 19:53:17 2001
@@ -0,0 +1,1498 @@
+/*
+ * Motion Eye video4linux driver for Sony Vaio PictureBook
+ *
+ * Copyright (C) 2001 Stelian Pop <stelian.pop@fr.alcove.com>, Alcôve
+ *
+ * Copyright (C) 2000 Andrew Tridgell <tridge@valinux.com>
+ *
+ * Earlier work by Werner Almesberger, Paul `Rusty' Russell and Paul Mackerras.
+ *
+ * Some parts borrowed from various video4linux drivers, especially
+ * bttv-driver.c and zoran.c, see original files for credits.
+ *
+ * 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/config.h>
+#include <linux/module.h>
+#include <linux/pci.h>
+#include <linux/sched.h>
+#include <linux/init.h>
+#include <linux/videodev.h>
+#include <asm/uaccess.h>
+#include <asm/io.h>
+#include <linux/delay.h>
+#include <linux/wrapper.h>
+#include <linux/interrupt.h>
+
+#include "meye.h"
+#include "linux/meye.h"
+
+/* driver structure - only one possible */
+static struct meye meye;
+/* number of grab buffers */
+static unsigned int gbuffers = 2;
+/* size of a grab buffer */
+static unsigned int gbufsize = MEYE_MAX_BUFSIZE;
+/* /dev/videoX registration number */
+static int video_nr = -1;
+
+/****************************************************************************/
+/* Queue routines */
+/****************************************************************************/
+
+/* Inits the queue */
+static inline void meye_initq(struct meye_queue *queue) {
+ queue->head = queue->tail = 0;
+ queue->len = 0;
+ queue->s_lock = (spinlock_t)SPIN_LOCK_UNLOCKED;
+ init_waitqueue_head(&queue->proc_list);
+}
+
+/* Pulls an element from the queue */
+static inline int meye_pullq(struct meye_queue *queue) {
+ int result;
+ unsigned long flags;
+
+ spin_lock_irqsave(&queue->s_lock, flags);
+ if (!queue->len) {
+ spin_unlock_irqrestore(&queue->s_lock, flags);
+ return -1;
+ }
+ result = queue->buf[queue->head];
+ queue->head++;
+ queue->head &= (MEYE_QUEUE_SIZE - 1);
+ queue->len--;
+ spin_unlock_irqrestore(&queue->s_lock, flags);
+ return result;
+}
+
+/* Pushes an element into the queue */
+static inline void meye_pushq(struct meye_queue *queue, int element) {
+ unsigned long flags;
+
+ spin_lock_irqsave(&queue->s_lock, flags);
+ if (queue->len == MEYE_QUEUE_SIZE) {
+ /* remove the first element */
+ queue->head++;
+ queue->head &= (MEYE_QUEUE_SIZE - 1);
+ queue->len--;
+ }
+ queue->buf[queue->tail] = element;
+ queue->tail++;
+ queue->tail &= (MEYE_QUEUE_SIZE - 1);
+ queue->len++;
+
+ spin_unlock_irqrestore(&queue->s_lock, flags);
+}
+
+/* Tests if the queue is empty */
+static inline int meye_emptyq(struct meye_queue *queue, int *elem) {
+ int result;
+ unsigned long flags;
+
+ spin_lock_irqsave(&queue->s_lock, flags);
+ result = (queue->len == 0);
+ if (!result && elem)
+ *elem = queue->buf[queue->head];
+ spin_unlock_irqrestore(&queue->s_lock, flags);
+ return result;
+}
+
+/****************************************************************************/
+/* Memory allocation routines (stolen from bttv-driver.c) */
+/****************************************************************************/
+
+#define MDEBUG(x) do {} while (0)
+/* #define MDEBUG(x) x */
+
+/* Given PGD from the address space's page table, return the kernel
+ * virtual mapping of the physical memory mapped at ADR.
+ */
+static inline unsigned long uvirt_to_kva(pgd_t *pgd, unsigned long adr) {
+ unsigned long ret = 0UL;
+ pmd_t *pmd;
+ pte_t *ptep, pte;
+
+ if (!pgd_none(*pgd)) {
+ pmd = pmd_offset(pgd, adr);
+ if (!pmd_none(*pmd)) {
+ ptep = pte_offset(pmd, adr);
+ pte = *ptep;
+ if(pte_present(pte)) {
+ ret = (unsigned long)page_address(pte_page(pte));
+ ret |= (adr & (PAGE_SIZE - 1));
+
+ }
+ }
+ }
+ MDEBUG(printk("uv2kva(%lx-->%lx)\n", adr, ret));
+ return ret;
+}
+
+static inline unsigned long uvirt_to_bus(unsigned long adr) {
+ unsigned long kva, ret;
+
+ kva = uvirt_to_kva(pgd_offset(current->mm, adr), adr);
+ ret = virt_to_bus((void *)kva);
+ MDEBUG(printk("uv2b(%lx-->%lx)\n", adr, ret));
+ return ret;
+}
+
+static inline unsigned long kvirt_to_bus(unsigned long adr) {
+ unsigned long va, kva, ret;
+
+ va = VMALLOC_VMADDR(adr);
+ kva = uvirt_to_kva(pgd_offset_k(va), va);
+ ret = virt_to_bus((void *)kva);
+ MDEBUG(printk("kv2b(%lx-->%lx)\n", adr, ret));
+ return ret;
+}
+
+/* Here we want the physical address of the memory.
+ * This is used when initializing the contents of the
+ * area and marking the pages as reserved.
+ */
+static inline unsigned long kvirt_to_pa(unsigned long adr) {
+ unsigned long va, kva, ret;
+
+ va = VMALLOC_VMADDR(adr);
+ kva = uvirt_to_kva(pgd_offset_k(va), va);
+ ret = __pa(kva);
+ MDEBUG(printk("kv2pa(%lx-->%lx)\n", adr, ret));
+ return ret;
+}
+
+static void *rvmalloc(signed long size) {
+ void *mem;
+ unsigned long adr, page;
+
+ mem = vmalloc_32(size);
+ if (mem) {
+ memset(mem, 0, size); /* Clear the ram out, no junk to the user */
+ adr = (unsigned long)mem;
+ while (size > 0) {
+ page = kvirt_to_pa(adr);
+ mem_map_reserve(virt_to_page(__va(page)));
+ adr += PAGE_SIZE;
+ size -= PAGE_SIZE;
+ }
+ }
+ return mem;
+}
+
+static void rvfree(void * mem, signed long size) {
+ unsigned long adr, page;
+
+ if (mem) {
+ adr = (unsigned long) mem;
+ while (size > 0) {
+ page = kvirt_to_pa(adr);
+ mem_map_unreserve(virt_to_page(__va(page)));
+ adr += PAGE_SIZE;
+ size -= PAGE_SIZE;
+ }
+ vfree(mem);
+ }
+}
+
+/* return a page table pointing to N pages of locked memory */
+static void *ptable_alloc(int npages, u32 *pt_addr) {
+ int i = 0;
+ void *vmem;
+ u32 ptable[npages+1];
+ signed long size;
+ unsigned long adr;
+
+ size = (npages + 1) * PAGE_SIZE;
+ vmem = rvmalloc(size);
+ if (!vmem)
+ return NULL;
+
+ memset(ptable, 0, sizeof(ptable));
+ adr = (unsigned long)vmem;
+ while (size > 0) {
+ ptable[i++] = virt_to_bus(__va(kvirt_to_pa(adr)));
+ adr += PAGE_SIZE;
+ size -= PAGE_SIZE;
+ }
+
+ memcpy(vmem + npages * PAGE_SIZE, ptable, PAGE_SIZE);
+ *pt_addr = ptable[npages];
+
+ return vmem;
+}
+
+static void ptable_free(void *vmem, int npages) {
+ rvfree(vmem, (npages + 1) * PAGE_SIZE);
+}
+
+/****************************************************************************/
+/* JPEG tables at different qualities to load into the VRJ chip */
+/****************************************************************************/
+
+/* return a set of quantisation tables based on a quality from 1 to 10 */
+static u16 *jpeg_quantisation_tables(int *size, int quality) {
+ static u16 tables0[] = {
+ 0xdbff, 0x4300, 0xff00, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff,
+ 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff,
+ 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff,
+ 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff,
+ 0xffff, 0xffff, 0xffff,
+ 0xdbff, 0x4300, 0xff01, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff,
+ 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff,
+ 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff,
+ 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff,
+ 0xffff, 0xffff, 0xffff,
+ };
+ static u16 tables1[] = {
+ 0xdbff, 0x4300, 0x5000, 0x3c37, 0x3c46, 0x5032, 0x4146, 0x5a46,
+ 0x5055, 0x785f, 0x82c8, 0x6e78, 0x786e, 0xaff5, 0x91b9, 0xffc8,
+ 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff,
+ 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff,
+ 0xffff, 0xffff, 0xffff,
+ 0xdbff, 0x4300, 0x5501, 0x5a5a, 0x6978, 0xeb78, 0x8282, 0xffeb,
+ 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff,
+ 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff,
+ 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff,
+ 0xffff, 0xffff, 0xffff,
+ };
+ static u16 tables2[] = {
+ 0xdbff, 0x4300, 0x2800, 0x1e1c, 0x1e23, 0x2819, 0x2123, 0x2d23,
+ 0x282b, 0x3c30, 0x4164, 0x373c, 0x3c37, 0x587b, 0x495d, 0x9164,
+ 0x9980, 0x8f96, 0x8c80, 0xa08a, 0xe6b4, 0xa0c3, 0xdaaa, 0x8aad,
+ 0xc88c, 0xcbff, 0xeeda, 0xfff5, 0xffff, 0xc19b, 0xffff, 0xfaff,
+ 0xe6ff, 0xfffd, 0xfff8,
+ 0xdbff, 0x4300, 0x2b01, 0x2d2d, 0x353c, 0x763c, 0x4141, 0xf876,
+ 0x8ca5, 0xf8a5, 0xf8f8, 0xf8f8, 0xf8f8, 0xf8f8, 0xf8f8, 0xf8f8,
+ 0xf8f8, 0xf8f8, 0xf8f8, 0xf8f8, 0xf8f8, 0xf8f8, 0xf8f8, 0xf8f8,
+ 0xf8f8, 0xf8f8, 0xf8f8, 0xf8f8, 0xf8f8, 0xf8f8, 0xf8f8, 0xf8f8,
+ 0xf8f8, 0xf8f8, 0xfff8,
+ };
+ static u16 tables3[] = {
+ 0xdbff, 0x4300, 0x1b00, 0x1412, 0x1417, 0x1b11, 0x1617, 0x1e17,
+ 0x1b1c, 0x2820, 0x2b42, 0x2528, 0x2825, 0x3a51, 0x303d, 0x6042,
+ 0x6555, 0x5f64, 0x5d55, 0x6a5b, 0x9978, 0x6a81, 0x9071, 0x5b73,
+ 0x855d, 0x86b5, 0x9e90, 0xaba3, 0xabad, 0x8067, 0xc9bc, 0xa6ba,
+ 0x99c7, 0xaba8, 0xffa4,
+ 0xdbff, 0x4300, 0x1c01, 0x1e1e, 0x2328, 0x4e28, 0x2b2b, 0xa44e,
+ 0x5d6e, 0xa46e, 0xa4a4, 0xa4a4, 0xa4a4, 0xa4a4, 0xa4a4, 0xa4a4,
+ 0xa4a4, 0xa4a4, 0xa4a4, 0xa4a4, 0xa4a4, 0xa4a4, 0xa4a4, 0xa4a4,
+ 0xa4a4, 0xa4a4, 0xa4a4, 0xa4a4, 0xa4a4, 0xa4a4, 0xa4a4, 0xa4a4,
+ 0xa4a4, 0xa4a4, 0xffa4,
+ };
+ static u16 tables4[] = {
+ 0xdbff, 0x4300, 0x1400, 0x0f0e, 0x0f12, 0x140d, 0x1012, 0x1712,
+ 0x1415, 0x1e18, 0x2132, 0x1c1e, 0x1e1c, 0x2c3d, 0x242e, 0x4932,
+ 0x4c40, 0x474b, 0x4640, 0x5045, 0x735a, 0x5062, 0x6d55, 0x4556,
+ 0x6446, 0x6588, 0x776d, 0x817b, 0x8182, 0x604e, 0x978d, 0x7d8c,
+ 0x7396, 0x817e, 0xff7c,
+ 0xdbff, 0x4300, 0x1501, 0x1717, 0x1a1e, 0x3b1e, 0x2121, 0x7c3b,
+ 0x4653, 0x7c53, 0x7c7c, 0x7c7c, 0x7c7c, 0x7c7c, 0x7c7c, 0x7c7c,
+ 0x7c7c, 0x7c7c, 0x7c7c, 0x7c7c, 0x7c7c, 0x7c7c, 0x7c7c, 0x7c7c,
+ 0x7c7c, 0x7c7c, 0x7c7c, 0x7c7c, 0x7c7c, 0x7c7c, 0x7c7c, 0x7c7c,
+ 0x7c7c, 0x7c7c, 0xff7c,
+ };
+ static u16 tables5[] = {
+ 0xdbff, 0x4300, 0x1000, 0x0c0b, 0x0c0e, 0x100a, 0x0d0e, 0x120e,
+ 0x1011, 0x1813, 0x1a28, 0x1618, 0x1816, 0x2331, 0x1d25, 0x3a28,
+ 0x3d33, 0x393c, 0x3833, 0x4037, 0x5c48, 0x404e, 0x5744, 0x3745,
+ 0x5038, 0x516d, 0x5f57, 0x6762, 0x6768, 0x4d3e, 0x7971, 0x6470,
+ 0x5c78, 0x6765, 0xff63,
+ 0xdbff, 0x4300, 0x1101, 0x1212, 0x1518, 0x2f18, 0x1a1a, 0x632f,
+ 0x3842, 0x6342, 0x6363, 0x6363, 0x6363, 0x6363, 0x6363, 0x6363,
+ 0x6363, 0x6363, 0x6363, 0x6363, 0x6363, 0x6363, 0x6363, 0x6363,
+ 0x6363, 0x6363, 0x6363, 0x6363, 0x6363, 0x6363, 0x6363, 0x6363,
+ 0x6363, 0x6363, 0xff63,
+ };
+ static u16 tables6[] = {
+ 0xdbff, 0x4300, 0x0d00, 0x0a09, 0x0a0b, 0x0d08, 0x0a0b, 0x0e0b,
+ 0x0d0e, 0x130f, 0x1520, 0x1213, 0x1312, 0x1c27, 0x171e, 0x2e20,
+ 0x3129, 0x2e30, 0x2d29, 0x332c, 0x4a3a, 0x333e, 0x4636, 0x2c37,
+ 0x402d, 0x4157, 0x4c46, 0x524e, 0x5253, 0x3e32, 0x615a, 0x505a,
+ 0x4a60, 0x5251, 0xff4f,
+ 0xdbff, 0x4300, 0x0e01, 0x0e0e, 0x1113, 0x2613, 0x1515, 0x4f26,
+ 0x2d35, 0x4f35, 0x4f4f, 0x4f4f, 0x4f4f, 0x4f4f, 0x4f4f, 0x4f4f,
+ 0x4f4f, 0x4f4f, 0x4f4f, 0x4f4f, 0x4f4f, 0x4f4f, 0x4f4f, 0x4f4f,
+ 0x4f4f, 0x4f4f, 0x4f4f, 0x4f4f, 0x4f4f, 0x4f4f, 0x4f4f, 0x4f4f,
+ 0x4f4f, 0x4f4f, 0xff4f,
+ };
+ static u16 tables7[] = {
+ 0xdbff, 0x4300, 0x0a00, 0x0707, 0x0708, 0x0a06, 0x0808, 0x0b08,
+ 0x0a0a, 0x0e0b, 0x1018, 0x0d0e, 0x0e0d, 0x151d, 0x1116, 0x2318,
+ 0x251f, 0x2224, 0x221f, 0x2621, 0x372b, 0x262f, 0x3429, 0x2129,
+ 0x3022, 0x3141, 0x3934, 0x3e3b, 0x3e3e, 0x2e25, 0x4944, 0x3c43,
+ 0x3748, 0x3e3d, 0xff3b,
+ 0xdbff, 0x4300, 0x0a01, 0x0b0b, 0x0d0e, 0x1c0e, 0x1010, 0x3b1c,
+ 0x2228, 0x3b28, 0x3b3b, 0x3b3b, 0x3b3b, 0x3b3b, 0x3b3b, 0x3b3b,
+ 0x3b3b, 0x3b3b, 0x3b3b, 0x3b3b, 0x3b3b, 0x3b3b, 0x3b3b, 0x3b3b,
+ 0x3b3b, 0x3b3b, 0x3b3b, 0x3b3b, 0x3b3b, 0x3b3b, 0x3b3b, 0x3b3b,
+ 0x3b3b, 0x3b3b, 0xff3b,
+ };
+ static u16 tables8[] = {
+ 0xdbff, 0x4300, 0x0600, 0x0504, 0x0506, 0x0604, 0x0506, 0x0706,
+ 0x0607, 0x0a08, 0x0a10, 0x090a, 0x0a09, 0x0e14, 0x0c0f, 0x1710,
+ 0x1814, 0x1718, 0x1614, 0x1a16, 0x251d, 0x1a1f, 0x231b, 0x161c,
+ 0x2016, 0x202c, 0x2623, 0x2927, 0x292a, 0x1f19, 0x302d, 0x282d,
+ 0x2530, 0x2928, 0xff28,
+ 0xdbff, 0x4300, 0x0701, 0x0707, 0x080a, 0x130a, 0x0a0a, 0x2813,
+ 0x161a, 0x281a, 0x2828, 0x2828, 0x2828, 0x2828, 0x2828, 0x2828,
+ 0x2828, 0x2828, 0x2828, 0x2828, 0x2828, 0x2828, 0x2828, 0x2828,
+ 0x2828, 0x2828, 0x2828, 0x2828, 0x2828, 0x2828, 0x2828, 0x2828,
+ 0x2828, 0x2828, 0xff28,
+ };
+ static u16 tables9[] = {
+ 0xdbff, 0x4300, 0x0300, 0x0202, 0x0203, 0x0302, 0x0303, 0x0403,
+ 0x0303, 0x0504, 0x0508, 0x0405, 0x0504, 0x070a, 0x0607, 0x0c08,
+ 0x0c0a, 0x0b0c, 0x0b0a, 0x0d0b, 0x120e, 0x0d10, 0x110e, 0x0b0e,
+ 0x100b, 0x1016, 0x1311, 0x1514, 0x1515, 0x0f0c, 0x1817, 0x1416,
+ 0x1218, 0x1514, 0xff14,
+ 0xdbff, 0x4300, 0x0301, 0x0404, 0x0405, 0x0905, 0x0505, 0x1409,
+ 0x0b0d, 0x140d, 0x1414, 0x1414, 0x1414, 0x1414, 0x1414, 0x1414,
+ 0x1414, 0x1414, 0x1414, 0x1414, 0x1414, 0x1414, 0x1414, 0x1414,
+ 0x1414, 0x1414, 0x1414, 0x1414, 0x1414, 0x1414, 0x1414, 0x1414,
+ 0x1414, 0x1414, 0xff14,
+ };
+ static u16 tables10[] = {
+ 0xdbff, 0x4300, 0x0100, 0x0101, 0x0101, 0x0101, 0x0101, 0x0101,
+ 0x0101, 0x0101, 0x0101, 0x0101, 0x0101, 0x0101, 0x0101, 0x0101,
+ 0x0101, 0x0101, 0x0101, 0x0101, 0x0101, 0x0101, 0x0101, 0x0101,
+ 0x0101, 0x0101, 0x0101, 0x0101, 0x0101, 0x0101, 0x0101, 0x0101,
+ 0x0101, 0x0101, 0xff01,
+ 0xdbff, 0x4300, 0x0101, 0x0101, 0x0101, 0x0101, 0x0101, 0x0101,
+ 0x0101, 0x0101, 0x0101, 0x0101, 0x0101, 0x0101, 0x0101, 0x0101,
+ 0x0101, 0x0101, 0x0101, 0x0101, 0x0101, 0x0101, 0x0101, 0x0101,
+ 0x0101, 0x0101, 0x0101, 0x0101, 0x0101, 0x0101, 0x0101, 0x0101,
+ 0x0101, 0x0101, 0xff01,
+ };
+
+ switch (quality) {
+ case 0:
+ *size = sizeof(tables0);
+ return tables0;
+ case 1:
+ *size = sizeof(tables1);
+ return tables1;
+ case 2:
+ *size = sizeof(tables2);
+ return tables2;
+ case 3:
+ *size = sizeof(tables3);
+ return tables3;
+ case 4:
+ *size = sizeof(tables4);
+ return tables4;
+ case 5:
+ *size = sizeof(tables5);
+ return tables5;
+ case 6:
+ *size = sizeof(tables6);
+ return tables6;
+ case 7:
+ *size = sizeof(tables7);
+ return tables7;
+ case 8:
+ *size = sizeof(tables8);
+ return tables8;
+ case 9:
+ *size = sizeof(tables9);
+ return tables9;
+ case 10:
+ *size = sizeof(tables10);
+ return tables10;
+ default:
+ printk(KERN_WARNING "meye: invalid quality level %d - using 8\n", quality);
+ *size = sizeof(tables8);
+ return tables8;
+ }
+ return NULL;
+}
+
+/* return a generic set of huffman tables */
+static u16 *jpeg_huffman_tables(int *size) {
+ static u16 tables[] = {
+ 0xC4FF, 0xB500, 0x0010, 0x0102, 0x0303, 0x0402, 0x0503, 0x0405,
+ 0x0004, 0x0100, 0x017D, 0x0302, 0x0400, 0x0511, 0x2112, 0x4131,
+ 0x1306, 0x6151, 0x2207, 0x1471, 0x8132, 0xA191, 0x2308, 0xB142,
+ 0x15C1, 0xD152, 0x24F0, 0x6233, 0x8272, 0x0A09, 0x1716, 0x1918,
+ 0x251A, 0x2726, 0x2928, 0x342A, 0x3635, 0x3837, 0x3A39, 0x4443,
+ 0x4645, 0x4847, 0x4A49, 0x5453, 0x5655, 0x5857, 0x5A59, 0x6463,
+ 0x6665, 0x6867, 0x6A69, 0x7473, 0x7675, 0x7877, 0x7A79, 0x8483,
+ 0x8685, 0x8887, 0x8A89, 0x9392, 0x9594, 0x9796, 0x9998, 0xA29A,
+ 0xA4A3, 0xA6A5, 0xA8A7, 0xAAA9, 0xB3B2, 0xB5B4, 0xB7B6, 0xB9B8,
+ 0xC2BA, 0xC4C3, 0xC6C5, 0xC8C7, 0xCAC9, 0xD3D2, 0xD5D4, 0xD7D6,
+ 0xD9D8, 0xE1DA, 0xE3E2, 0xE5E4, 0xE7E6, 0xE9E8, 0xF1EA, 0xF3F2,
+ 0xF5F4, 0xF7F6, 0xF9F8, 0xFFFA,
+ 0xC4FF, 0xB500, 0x0011, 0x0102, 0x0402, 0x0304, 0x0704, 0x0405,
+ 0x0004, 0x0201, 0x0077, 0x0201, 0x1103, 0x0504, 0x3121, 0x1206,
+ 0x5141, 0x6107, 0x1371, 0x3222, 0x0881, 0x4214, 0xA191, 0xC1B1,
+ 0x2309, 0x5233, 0x15F0, 0x7262, 0x0AD1, 0x2416, 0xE134, 0xF125,
+ 0x1817, 0x1A19, 0x2726, 0x2928, 0x352A, 0x3736, 0x3938, 0x433A,
+ 0x4544, 0x4746, 0x4948, 0x534A, 0x5554, 0x5756, 0x5958, 0x635A,
+ 0x6564, 0x6766, 0x6968, 0x736A, 0x7574, 0x7776, 0x7978, 0x827A,
+ 0x8483, 0x8685, 0x8887, 0x8A89, 0x9392, 0x9594, 0x9796, 0x9998,
+ 0xA29A, 0xA4A3, 0xA6A5, 0xA8A7, 0xAAA9, 0xB3B2, 0xB5B4, 0xB7B6,
+ 0xB9B8, 0xC2BA, 0xC4C3, 0xC6C5, 0xC8C7, 0xCAC9, 0xD3D2, 0xD5D4,
+ 0xD7D6, 0xD9D8, 0xE2DA, 0xE4E3, 0xE6E5, 0xE8E7, 0xEAE9, 0xF3F2,
+ 0xF5F4, 0xF7F6, 0xF9F8, 0xFFFA,
+ 0xC4FF, 0x1F00, 0x0000, 0x0501, 0x0101, 0x0101, 0x0101, 0x0000,
+ 0x0000, 0x0000, 0x0000, 0x0201, 0x0403, 0x0605, 0x0807, 0x0A09,
+ 0xFF0B,
+ 0xC4FF, 0x1F00, 0x0001, 0x0103, 0x0101, 0x0101, 0x0101, 0x0101,
+ 0x0000, 0x0000, 0x0000, 0x0201, 0x0403, 0x0605, 0x0807, 0x0A09,
+ 0xFF0B
+ };
+
+ *size = sizeof(tables);
+ return tables;
+}
+
+/****************************************************************************/
+/* MCHIP low-level functions */
+/****************************************************************************/
+
+/* waits for the specified miliseconds */
+static inline void wait_ms(unsigned int ms) {
+ if (!in_interrupt()) {
+ set_current_state(TASK_UNINTERRUPTIBLE);
+ schedule_timeout(1 + ms * HZ / 1000);
+ }
+ else
+ mdelay(ms);
+}
+
+/* returns the horizontal capture size */
+static inline int mchip_hsize(void) {
+ return meye.params.subsample ? 320 : 640;
+}
+
+/* returns the vertical capture size */
+static inline int mchip_vsize(void) {
+ return meye.params.subsample ? 240 : 480;
+}
+
+/* waits for a register to be available */
+static void mchip_sync(int reg) {
+ u32 status;
+ int i;
+
+ if (reg == MCHIP_MM_FIFO_DATA) {
+ for (i = 0; i < MCHIP_REG_TIMEOUT; i++) {
+ status = readl(meye.mchip_mmregs + MCHIP_MM_FIFO_STATUS);
+ if (!(status & MCHIP_MM_FIFO_WAIT)) {
+ printk(KERN_WARNING "meye: fifo not ready\n");
+ return;
+ }
+ if (status & MCHIP_MM_FIFO_READY)
+ return;
+ udelay(1);
+ }
+ }
+ else if (reg > 0x80) {
+ u32 mask = (reg < 0x100) ? MCHIP_HIC_STATUS_MCC_RDY
+ : MCHIP_HIC_STATUS_VRJ_RDY;
+ for (i = 0; i < MCHIP_REG_TIMEOUT; i++) {
+ status = readl(meye.mchip_mmregs + MCHIP_HIC_STATUS);
+ if (status & mask)
+ return;
+ udelay(1);
+ }
+ }
+ else
+ return;
+ printk(KERN_WARNING "meye: mchip_sync() timeout on reg 0x%x status=0x%x\n", reg, status);
+}
+
+/* sets a value into the register */
+static inline void mchip_set(int reg, u32 v) {
+ mchip_sync(reg);
+ writel(v, meye.mchip_mmregs + reg);
+}
+
+/* get the register value */
+static inline u32 mchip_read(int reg) {
+ mchip_sync(reg);
+ return readl(meye.mchip_mmregs + reg);
+}
+
+/* wait for a register to become a particular value */
+static inline int mchip_delay(u32 reg, u32 v) {
+ int n = 10;
+ while (--n && mchip_read(reg) != v)
+ udelay(1);
+ return n;
+}
+
+/* setup subsampling */
+static void mchip_subsample(void) {
+ mchip_set(MCHIP_MCC_R_SAMPLING, meye.params.subsample);
+ mchip_set(MCHIP_MCC_R_XRANGE, mchip_hsize());
+ mchip_set(MCHIP_MCC_R_YRANGE, mchip_vsize());
+ mchip_set(MCHIP_MCC_B_XRANGE, mchip_hsize());
+ mchip_set(MCHIP_MCC_B_YRANGE, mchip_vsize());
+ mchip_delay(MCHIP_HIC_STATUS, MCHIP_HIC_STATUS_IDLE);
+}
+
+/* set the framerate into the mchip */
+static void mchip_set_framerate(void) {
+ mchip_set(MCHIP_HIC_S_RATE, meye.params.framerate);
+}
+
+/* load some huffman and quantisation tables into the VRJ chip ready
+ for JPEG compression */
+static void mchip_load_tables(void) {
+ int i;
+ int size;
+ u16 *tables;
+
+ tables = jpeg_huffman_tables(&size);
+ for (i = 0; i < size / 2; i++)
+ writel(tables[i], meye.mchip_mmregs + MCHIP_VRJ_TABLE_DATA);
+
+ tables = jpeg_quantisation_tables(&size, meye.params.quality);
+ for (i = 0; i < size / 2; i++)
+ writel(tables[i], meye.mchip_mmregs + MCHIP_VRJ_TABLE_DATA);
+}
+
+/* setup the VRJ parameters in the chip */
+static void mchip_vrj_setup(u8 mode) {
+
+ mchip_set(MCHIP_VRJ_BUS_MODE, 5);
+ mchip_set(MCHIP_VRJ_SIGNAL_ACTIVE_LEVEL, 0x1f);
+ mchip_set(MCHIP_VRJ_PDAT_USE, 1);
+ mchip_set(MCHIP_VRJ_IRQ_FLAG, 0xa0);
+ mchip_set(MCHIP_VRJ_MODE_SPECIFY, mode);
+ mchip_set(MCHIP_VRJ_NUM_LINES, mchip_vsize());
+ mchip_set(MCHIP_VRJ_NUM_PIXELS, mchip_hsize());
+ mchip_set(MCHIP_VRJ_NUM_COMPONENTS, 0x1b);
+ mchip_set(MCHIP_VRJ_LIMIT_COMPRESSED_LO, 0xFFFF);
+ mchip_set(MCHIP_VRJ_LIMIT_COMPRESSED_HI, 0xFFFF);
+ mchip_set(MCHIP_VRJ_COMP_DATA_FORMAT, 0xC);
+ mchip_set(MCHIP_VRJ_RESTART_INTERVAL, 0);
+ mchip_set(MCHIP_VRJ_SOF1, 0x601);
+ mchip_set(MCHIP_VRJ_SOF2, 0x1502);
+ mchip_set(MCHIP_VRJ_SOF3, 0x1503);
+ mchip_set(MCHIP_VRJ_SOF4, 0x1596);
+ mchip_set(MCHIP_VRJ_SOS, 0x0ed0);
+
+ mchip_load_tables();
+}
+
+/* setup for DMA transfers - also zeros the framebuffer */
+static int mchip_dma_alloc(void) {
+ if (!meye.mchip_fbuffer) {
+ meye.mchip_fbuffer = ptable_alloc(MCHIP_NB_PAGES,
+ &meye.mchip_ptaddr);
+ if (!meye.mchip_fbuffer)
+ return -1;
+ }
+ return 0;
+}
+
+/* frees the DMA buffer */
+static void mchip_dma_free(void) {
+ if (meye.mchip_fbuffer) {
+ ptable_free(meye.mchip_fbuffer, MCHIP_NB_PAGES);
+ meye.mchip_fbuffer = 0;
+ meye.mchip_ptaddr = 0;
+ }
+}
+
+/* sets the DMA parameters into the chip */
+static void mchip_dma_setup(void) {
+ int i;
+
+ mchip_set(MCHIP_MM_PT_ADDR, meye.mchip_ptaddr);
+ for (i = 0; i < 4; i++)
+ mchip_set(MCHIP_MM_FIR(i), 0);
+ meye.mchip_fnum = 0;
+}
+
+/* stop any existing HIC action and wait for any dma to complete then
+ reset the dma engine */
+static void mchip_hic_stop(void) {
+ int i = 0;
+
+ meye.mchip_mode = MCHIP_HIC_MODE_NOOP;
+ if (!(mchip_read(MCHIP_HIC_STATUS) & MCHIP_HIC_STATUS_BUSY))
+ return;
+ mchip_set(MCHIP_HIC_CMD, MCHIP_HIC_CMD_STOP);
+ mchip_delay(MCHIP_HIC_CMD, 0);
+ while (!mchip_delay(MCHIP_HIC_STATUS, MCHIP_HIC_STATUS_IDLE)) {
+ /* resetting HIC */
+ mchip_set(MCHIP_HIC_CMD, MCHIP_HIC_CMD_STOP);
+ mchip_delay(MCHIP_HIC_CMD, 0);
+ mchip_set(MCHIP_HIC_CTL, MCHIP_HIC_CTL_SOFT_RESET);
+ wait_ms(250);
+ if (i++ > 20) {
+ printk(KERN_ERR "meye: resetting HIC hanged!\n");
+ break;
+ }
+ }
+ wait_ms(100);
+}
+
+/****************************************************************************/
+/* MCHIP frame processing functions */
+/****************************************************************************/
+
+/* get the next ready frame from the dma engine */
+static u32 mchip_get_frame(void) {
+ u32 v;
+
+ v = mchip_read(MCHIP_MM_FIR(meye.mchip_fnum));
+ return v;
+}
+
+/* frees the current frame from the dma engine */
+static void mchip_free_frame(void) {
+ mchip_set(MCHIP_MM_FIR(meye.mchip_fnum), 0);
+ meye.mchip_fnum++;
+ meye.mchip_fnum %= 4;
+}
+
+
+/* read one frame from the framebuffer assuming it was captured using
+ a uncompressed transfer */
+static void mchip_cont_read_frame(u32 v, u8 *buf, int size) {
+ int pt_id;
+ int avail;
+
+ pt_id = (v >> 17) & 0x3FF;
+ avail = MCHIP_NB_PAGES - pt_id;
+
+ if (size > avail*PAGE_SIZE) {
+ memcpy(buf, meye.mchip_fbuffer + pt_id * PAGE_SIZE,
+ avail * PAGE_SIZE);
+ memcpy(buf +avail * PAGE_SIZE, meye.mchip_fbuffer,
+ size - avail * PAGE_SIZE);
+ }
+ else
+ memcpy(buf, meye.mchip_fbuffer + pt_id * PAGE_SIZE, size);
+}
+
+/* read a compressed frame from the framebuffer */
+static int mchip_comp_read_frame(u32 v, u8 *buf, int size) {
+ int pt_start, pt_end, trailer;
+ int fsize, fsize2;
+ int i;
+
+ pt_start = (v >> 19) & 0xFF;
+ pt_end = (v >> 11) & 0xFF;
+ trailer = (v >> 1) & 0x3FF;
+
+ if (pt_end < pt_start) {
+ fsize = (MCHIP_NB_PAGES_MJPEG - pt_start) * PAGE_SIZE;
+ fsize2 = pt_end * PAGE_SIZE + trailer * 4;
+ if (fsize + fsize2 > size) {
+ printk(KERN_WARNING "meye: oversized compressed frame %d %d\n",
+ fsize, fsize2);
+ return -1;
+ } else {
+ memcpy(buf, meye.mchip_fbuffer + pt_start * PAGE_SIZE,
+ fsize);
+ memcpy(buf + fsize, meye.mchip_fbuffer, fsize2);
+ fsize += fsize2;
+ }
+ } else {
+ fsize = (pt_end - pt_start) * PAGE_SIZE + trailer * 4;
+ if (fsize > size) {
+ printk(KERN_WARNING "meye: oversized compressed frame %d\n",
+ fsize);
+ return -1;
+ } else
+ memcpy(buf, meye.mchip_fbuffer + pt_start * PAGE_SIZE,
+ fsize);
+ }
+
+
+#ifdef MEYE_JPEG_CORRECTION
+
+ /* Some mchip generated jpeg frames are incorrect. In most
+ * (all ?) of those cases, the final EOI (0xff 0xd9) marker
+ * is not present at the end of the frame.
+ *
+ * Since adding the final marker is not enough to restore
+ * the jpeg integrity, we drop the frame.
+ */
+
+ for (i = fsize - 1; i > 0 && buf[i] == 0xff; i--) ;
+
+ if (i < 2 || buf[i - 1] != 0xff || buf[i] != 0xd9)
+ return -1;
+
+#endif
+
+ return fsize;
+}
+
+/* take a picture into SDRAM */
+static void mchip_take_picture(void) {
+ int i;
+
+ mchip_hic_stop();
+ mchip_subsample();
+ mchip_dma_setup();
+
+ mchip_set(MCHIP_HIC_MODE, MCHIP_HIC_MODE_STILL_CAP);
+ mchip_set(MCHIP_HIC_CMD, MCHIP_HIC_CMD_START);
+
+ mchip_delay(MCHIP_HIC_CMD, 0);
+
+ for (i = 0; i < 100; ++i) {
+ if (mchip_delay(MCHIP_HIC_STATUS, MCHIP_HIC_STATUS_IDLE))
+ break;
+ wait_ms(1);
+ }
+}
+
+/* dma a previously taken picture into a buffer */
+static void mchip_get_picture(u8 *buf, int bufsize) {
+ u32 v;
+ int i;
+
+ mchip_set(MCHIP_HIC_MODE, MCHIP_HIC_MODE_STILL_OUT);
+ mchip_set(MCHIP_HIC_CMD, MCHIP_HIC_CMD_START);
+
+ mchip_delay(MCHIP_HIC_CMD, 0);
+ for (i = 0; i < 100; ++i) {
+ if (mchip_delay(MCHIP_HIC_STATUS, MCHIP_HIC_STATUS_IDLE))
+ break;
+ wait_ms(1);
+ }
+ for (i = 0; i < 4 ; ++i) {
+ v = mchip_get_frame();
+ if (v & MCHIP_MM_FIR_RDY) {
+ mchip_cont_read_frame(v, buf, bufsize);
+ break;
+ }
+ mchip_free_frame();
+ }
+}
+
+/* start continuous dma capture */
+static void mchip_continuous_start(void) {
+ mchip_hic_stop();
+ mchip_subsample();
+ mchip_set_framerate();
+ mchip_dma_setup();
+
+ meye.mchip_mode = MCHIP_HIC_MODE_CONT_OUT;
+
+ mchip_set(MCHIP_HIC_MODE, MCHIP_HIC_MODE_CONT_OUT);
+ mchip_set(MCHIP_HIC_CMD, MCHIP_HIC_CMD_START);
+
+ mchip_delay(MCHIP_HIC_CMD, 0);
+}
+
+/* compress one frame into a buffer */
+static int mchip_compress_frame(u8 *buf, int bufsize) {
+ u32 v;
+ int len = -1, i;
+
+ mchip_vrj_setup(0x3f);
+ udelay(50);
+
+ mchip_set(MCHIP_HIC_MODE, MCHIP_HIC_MODE_STILL_COMP);
+ mchip_set(MCHIP_HIC_CMD, MCHIP_HIC_CMD_START);
+
+ mchip_delay(MCHIP_HIC_CMD, 0);
+ for (i = 0; i < 100; ++i) {
+ if (mchip_delay(MCHIP_HIC_STATUS, MCHIP_HIC_STATUS_IDLE))
+ break;
+ wait_ms(1);
+ }
+
+ for (i = 0; i < 4 ; ++i) {
+ v = mchip_get_frame();
+ if (v & MCHIP_MM_FIR_RDY) {
+ len = mchip_comp_read_frame(v, buf, bufsize);
+ break;
+ }
+ mchip_free_frame();
+ }
+ return len;
+}
+
+#if 0
+/* uncompress one image into a buffer */
+static int mchip_uncompress_frame(u8 *img, int imgsize, u8 *buf, int bufsize) {
+ mchip_vrj_setup(0x3f);
+ udelay(50);
+
+ mchip_set(MCHIP_HIC_MODE, MCHIP_HIC_MODE_STILL_DECOMP);
+ mchip_set(MCHIP_HIC_CMD, MCHIP_HIC_CMD_START);
+
+ mchip_delay(MCHIP_HIC_CMD, 0);
+
+ return mchip_comp_read_frame(buf, bufsize);
+}
+#endif
+
+/* start continuous compressed capture */
+static void mchip_cont_compression_start(void) {
+ mchip_hic_stop();
+ mchip_vrj_setup(0x3f);
+ mchip_subsample();
+ mchip_set_framerate();
+ mchip_dma_setup();
+
+ meye.mchip_mode = MCHIP_HIC_MODE_CONT_COMP;
+
+ mchip_set(MCHIP_HIC_MODE, MCHIP_HIC_MODE_CONT_COMP);
+ mchip_set(MCHIP_HIC_CMD, MCHIP_HIC_CMD_START);
+
+ mchip_delay(MCHIP_HIC_CMD, 0);
+}
+
+/****************************************************************************/
+/* Interrupt handling */
+/****************************************************************************/
+
+static void meye_irq(int irq, void *dev_id, struct pt_regs *regs) {
+ u32 v;
+ int reqnr;
+ v = mchip_read(MCHIP_MM_INTA);
+
+ while (1) {
+ v = mchip_get_frame();
+ if (!(v & MCHIP_MM_FIR_RDY))
+ goto out;
+ switch (meye.mchip_mode) {
+
+ case MCHIP_HIC_MODE_CONT_OUT:
+ if (!meye_emptyq(&meye.grabq, NULL)) {
+ int nr = meye_pullq(&meye.grabq);
+ mchip_cont_read_frame(
+ v,
+ meye.grab_fbuffer + gbufsize * nr,
+ mchip_hsize() * mchip_vsize() * 2);
+ meye.grab_buffer[nr].state = MEYE_BUF_DONE;
+ wake_up_interruptible(&meye.grabq.proc_list);
+ }
+ break;
+
+ case MCHIP_HIC_MODE_CONT_COMP:
+ if (!meye_emptyq(&meye.grabq, &reqnr)) {
+ int size;
+ size = mchip_comp_read_frame(
+ v,
+ meye.grab_fbuffer + gbufsize * reqnr,
+ gbufsize);
+ if (size == -1)
+ break;
+ reqnr = meye_pullq(&meye.grabq);
+ meye.grab_buffer[reqnr].size = size;
+ meye.grab_buffer[reqnr].state = MEYE_BUF_DONE;
+ wake_up_interruptible(&meye.grabq.proc_list);
+ }
+ break;
+
+ default:
+ /* do not free frame, since it can be a snap */
+ goto out;
+ } /* switch */
+
+ mchip_free_frame();
+ }
+out:
+}
+
+/****************************************************************************/
+/* video4linux integration */
+/****************************************************************************/
+
+static int meye_open(struct video_device *dev, int flags) {
+ int i;
+
+ down(&meye.lock);
+ if (meye.open_count) {
+ up(&meye.lock);
+ return -EBUSY;
+ }
+ meye.open_count++;
+ if (mchip_dma_alloc()) {
+ printk(KERN_ERR "meye: mchip framebuffer allocation failed\n");
+ up(&meye.lock);
+ return -ENOBUFS;
+ }
+ mchip_hic_stop();
+ meye_initq(&meye.grabq);
+ for (i = 0; i < MEYE_MAX_BUFNBRS; i++)
+ meye.grab_buffer[i].state = MEYE_BUF_UNUSED;
+ up(&meye.lock);
+ return 0;
+}
+
+static void meye_close(struct video_device *dev) {
+ down(&meye.lock);
+ meye.open_count--;
+ mchip_hic_stop();
+ up(&meye.lock);
+}
+
+static int meye_ioctl(struct video_device *dev, unsigned int cmd, void *arg) {
+
+ switch (cmd) {
+
+ case VIDIOCGCAP: {
+ struct video_capability b;
+ strcpy(b.name,meye.video_dev.name);
+ b.type = VID_TYPE_CAPTURE;
+ b.channels = 1;
+ b.audios = 0;
+ b.maxwidth = 640;
+ b.maxheight = 480;
+ b.minwidth = 320;
+ b.minheight = 240;
+ if(copy_to_user(arg,&b,sizeof(b)))
+ return -EFAULT;
+ break;
+ }
+
+ case VIDIOCGCHAN: {
+ struct video_channel v;
+ if(copy_from_user(&v, arg,sizeof(v)))
+ return -EFAULT;
+ v.flags = 0;
+ v.tuners = 0;
+ v.type = VIDEO_TYPE_CAMERA;
+ if (v.channel != 0)
+ return -EINVAL;
+ strcpy(v.name,"Camera");
+ if(copy_to_user(arg,&v,sizeof(v)))
+ return -EFAULT;
+ break;
+ }
+
+ case VIDIOCSCHAN: {
+ struct video_channel v;
+ if(copy_from_user(&v, arg,sizeof(v)))
+ return -EFAULT;
+ if (v.channel != 0)
+ return -EINVAL;
+ break;
+ }
+
+ case VIDIOCGPICT: {
+ struct video_picture p = meye.picture;
+ if(copy_to_user(arg, &p, sizeof(p)))
+ return -EFAULT;
+ break;
+ }
+
+ case VIDIOCSPICT: {
+ struct video_picture p;
+ if(copy_from_user(&p, arg,sizeof(p)))
+ return -EFAULT;
+ if (p.depth != 2)
+ return -EINVAL;
+ if (p.palette != VIDEO_PALETTE_YUV422)
+ return -EINVAL;
+ down(&meye.lock);
+ sonypi_camera_command(SONYPI_COMMAND_SETCAMERABRIGHTNESS,
+ p.brightness >> 10);
+ sonypi_camera_command(SONYPI_COMMAND_SETCAMERAHUE,
+ p.hue >> 10);
+ sonypi_camera_command(SONYPI_COMMAND_SETCAMERACOLOR,
+ p.colour >> 10);
+ sonypi_camera_command(SONYPI_COMMAND_SETCAMERACONTRAST,
+ p.contrast >> 10);
+ memcpy(&meye.picture, &p, sizeof(p));
+ up(&meye.lock);
+ break;
+ }
+
+ case VIDIOCSYNC: {
+ int i;
+ DECLARE_WAITQUEUE(wait, current);
+
+ if(copy_from_user((void *)&i,arg,sizeof(int)))
+ return -EFAULT;
+ if (i < 0 || i >= gbuffers)
+ return -EINVAL;
+
+ switch (meye.grab_buffer[i].state) {
+
+ case MEYE_BUF_UNUSED:
+ return -EINVAL;
+ case MEYE_BUF_USING:
+ add_wait_queue(&meye.grabq.proc_list, &wait);
+ current->state = TASK_INTERRUPTIBLE;
+ while (meye.grab_buffer[i].state == MEYE_BUF_USING) {
+ schedule();
+ if(signal_pending(current)) {
+ remove_wait_queue(&meye.grabq.proc_list, &wait);
+ current->state = TASK_RUNNING;
+ return -EINTR;
+ }
+ }
+ remove_wait_queue(&meye.grabq.proc_list, &wait);
+ current->state = TASK_RUNNING;
+ /* fall through */
+ case MEYE_BUF_DONE:
+ meye.grab_buffer[i].state = MEYE_BUF_UNUSED;
+ }
+ break;
+ }
+
+ case VIDIOCMCAPTURE: {
+ struct video_mmap vm;
+ int restart = 0;
+
+ if(copy_from_user((void *) &vm, (void *) arg, sizeof(vm)))
+ return -EFAULT;
+ if (vm.frame >= gbuffers || vm.frame < 0)
+ return -EINVAL;
+ if (vm.format != VIDEO_PALETTE_YUV422)
+ return -EINVAL;
+ if (vm.height * vm.width * 2 > gbufsize)
+ return -EINVAL;
+ if (!meye.grab_fbuffer)
+ return -EINVAL;
+ if (meye.grab_buffer[vm.frame].state != MEYE_BUF_UNUSED)
+ return -EBUSY;
+
+ down(&meye.lock);
+ if (vm.width == 640 && vm.height == 480) {
+ if (meye.params.subsample) {
+ meye.params.subsample = 0;
+ restart = 1;
+ }
+ }
+ else if (vm.width == 320 && vm.height == 240) {
+ if (!meye.params.subsample) {
+ meye.params.subsample = 1;
+ restart = 1;
+ }
+ }
+ else {
+ up(&meye.lock);
+ return -EINVAL;
+ }
+
+ if (restart || meye.mchip_mode != MCHIP_HIC_MODE_CONT_OUT)
+ mchip_continuous_start();
+ meye.grab_buffer[vm.frame].state = MEYE_BUF_USING;
+ meye_pushq(&meye.grabq, vm.frame);
+ up(&meye.lock);
+ break;
+ }
+
+ case VIDIOCGMBUF: {
+ struct video_mbuf vm;
+ int i;
+
+ memset(&vm, 0 , sizeof(vm));
+ vm.size = gbufsize * gbuffers;
+ vm.frames = gbuffers;
+ for (i = 0; i < gbuffers; i++)
+ vm.offsets[i] = i * gbufsize;
+ if(copy_to_user((void *)arg, (void *)&vm, sizeof(vm)))
+ return -EFAULT;
+ break;
+ }
+
+ case MEYEIOC_G_PARAMS: {
+ if (copy_to_user(arg, &meye.params, sizeof(meye.params)))
+ return -EFAULT;
+ break;
+ }
+
+ case MEYEIOC_S_PARAMS: {
+ struct meye_params jp;
+ if (copy_from_user(&jp, arg, sizeof(jp)))
+ return -EFAULT;
+ if (jp.subsample > 1)
+ return -EINVAL;
+ if (jp.quality > 10)
+ return -EINVAL;
+ if (jp.sharpness > 63 || jp.agc > 63 || jp.picture > 63)
+ return -EINVAL;
+ if (jp.framerate > 31)
+ return -EINVAL;
+ down(&meye.lock);
+ if (meye.params.subsample != jp.subsample ||
+ meye.params.quality != jp.quality)
+ mchip_hic_stop(); /* need restart */
+ memcpy(&meye.params, &jp, sizeof(jp));
+ sonypi_camera_command(SONYPI_COMMAND_SETCAMERASHARPNESS,
+ meye.params.sharpness);
+ sonypi_camera_command(SONYPI_COMMAND_SETCAMERAAGC,
+ meye.params.agc);
+ sonypi_camera_command(SONYPI_COMMAND_SETCAMERAPICTURE,
+ meye.params.picture);
+ up(&meye.lock);
+ break;
+ }
+
+ case MEYEIOC_QBUF_CAPT: {
+ int nb;
+
+ if (copy_from_user((void *) &nb, (void *) arg, sizeof(int)))
+ return -EFAULT;
+
+ if (!meye.grab_fbuffer)
+ return -EINVAL;
+ if (nb >= gbuffers)
+ return -EINVAL;
+ if (nb < 0) {
+ /* stop capture */
+ mchip_hic_stop();
+ return 0;
+ }
+ if (meye.grab_buffer[nb].state != MEYE_BUF_UNUSED)
+ return -EBUSY;
+ down(&meye.lock);
+ if (meye.mchip_mode != MCHIP_HIC_MODE_CONT_COMP)
+ mchip_cont_compression_start();
+ meye.grab_buffer[nb].state = MEYE_BUF_USING;
+ meye_pushq(&meye.grabq, nb);
+ up(&meye.lock);
+ break;
+ }
+
+ case MEYEIOC_SYNC: {
+ int i;
+ DECLARE_WAITQUEUE(wait, current);
+
+ if(copy_from_user((void *)&i,arg,sizeof(int)))
+ return -EFAULT;
+ if (i < 0 || i >= gbuffers)
+ return -EINVAL;
+
+ switch (meye.grab_buffer[i].state) {
+
+ case MEYE_BUF_UNUSED:
+ return -EINVAL;
+ case MEYE_BUF_USING:
+ add_wait_queue(&meye.grabq.proc_list, &wait);
+ current->state = TASK_INTERRUPTIBLE;
+ while (meye.grab_buffer[i].state == MEYE_BUF_USING) {
+ schedule();
+ if(signal_pending(current)) {
+ remove_wait_queue(&meye.grabq.proc_list, &wait);
+ current->state = TASK_RUNNING;
+ return -EINTR;
+ }
+ }
+ remove_wait_queue(&meye.grabq.proc_list, &wait);
+ current->state = TASK_RUNNING;
+ /* fall through */
+ case MEYE_BUF_DONE:
+ meye.grab_buffer[i].state = MEYE_BUF_UNUSED;
+ }
+ i = meye.grab_buffer[i].size;
+ if (copy_to_user(arg, (void *)&i, sizeof(int)))
+ return -EFAULT;
+ break;
+ }
+
+ case MEYEIOC_STILLCAPT: {
+
+ if (!meye.grab_fbuffer)
+ return -EINVAL;
+ if (meye.grab_buffer[0].state != MEYE_BUF_UNUSED)
+ return -EBUSY;
+ down(&meye.lock);
+ meye.grab_buffer[0].state = MEYE_BUF_USING;
+ mchip_take_picture();
+ mchip_get_picture(
+ meye.grab_fbuffer,
+ mchip_hsize() * mchip_vsize() * 2);
+ meye.grab_buffer[0].state = MEYE_BUF_DONE;
+ up(&meye.lock);
+ break;
+ }
+
+ case MEYEIOC_STILLJCAPT: {
+ int len = -1;
+
+ if (!meye.grab_fbuffer)
+ return -EINVAL;
+ if (meye.grab_buffer[0].state != MEYE_BUF_UNUSED)
+ return -EBUSY;
+ down(&meye.lock);
+ meye.grab_buffer[0].state = MEYE_BUF_USING;
+ while (len == -1) {
+ mchip_take_picture();
+ len = mchip_compress_frame(meye.grab_fbuffer, gbufsize);
+ }
+ meye.grab_buffer[0].state = MEYE_BUF_DONE;
+ up(&meye.lock);
+ if (copy_to_user(arg, (void *)&len, sizeof(int)))
+ return -EFAULT;
+ break;
+ }
+
+ default:
+ return -ENOIOCTLCMD;
+
+ } /* switch */
+
+ return 0;
+}
+
+static int meye_mmap(struct video_device *dev, const char *adr,
+ unsigned long size) {
+ unsigned long start=(unsigned long) adr;
+ unsigned long page,pos;
+
+ down(&meye.lock);
+ if (size > gbuffers * gbufsize) {
+ up(&meye.lock);
+ return -EINVAL;
+ }
+ if (!meye.grab_fbuffer) {
+ /* lazy allocation */
+ meye.grab_fbuffer = rvmalloc(gbuffers*gbufsize);
+ if (!meye.grab_fbuffer) {
+ printk(KERN_ERR "meye: v4l framebuffer allocation failed\n");
+ up(&meye.lock);
+ return -ENOMEM;
+ }
+ }
+ pos = (unsigned long)meye.grab_fbuffer;
+
+ while (size > 0) {
+ page = kvirt_to_pa(pos);
+ if (remap_page_range(start, page, PAGE_SIZE, PAGE_SHARED)) {
+ up(&meye.lock);
+ return -EAGAIN;
+ }
+ start += PAGE_SIZE;
+ pos += PAGE_SIZE;
+ size -= PAGE_SIZE;
+ }
+ up(&meye.lock);
+ return 0;
+}
+
+static struct video_device meye_template = {
+ owner: THIS_MODULE,
+ name: "meye",
+ type: VID_TYPE_CAPTURE,
+ hardware: VID_HARDWARE_MEYE,
+ open: meye_open,
+ close: meye_close,
+ ioctl: meye_ioctl,
+ mmap: meye_mmap,
+};
+
+static int __devinit meye_probe(struct pci_dev *pcidev,
+ const struct pci_device_id *ent) {
+ int ret;
+ unsigned long mchip_adr;
+ u8 revision;
+
+ if (meye.mchip_dev != NULL) {
+ printk(KERN_ERR "meye: only one device allowed!\n");
+ ret = -EBUSY;
+ goto out1;
+ }
+
+ sonypi_camera_command(SONYPI_COMMAND_SETCAMERA, 1);
+
+ meye.mchip_dev = pcidev;
+ meye.mchip_irq = pcidev->irq;
+ memcpy(&meye.video_dev, &meye_template, sizeof(meye_template));
+
+ if (mchip_dma_alloc()) {
+ printk(KERN_ERR "meye: mchip framebuffer allocation failed\n");
+ ret = -ENOMEM;
+ goto out2;
+ }
+
+ if ((ret = pci_enable_device(meye.mchip_dev))) {
+ printk(KERN_ERR "meye: pci_enable_device failed\n");
+ goto out3;
+ }
+
+ mchip_adr = pci_resource_start(meye.mchip_dev,0);
+ if (!mchip_adr) {
+ printk(KERN_ERR "meye: mchip has no device base address\n");
+ ret = -EIO;
+ goto out4;
+ }
+ if (!request_mem_region(pci_resource_start(meye.mchip_dev, 0),
+ pci_resource_len(meye.mchip_dev, 0),
+ "meye")) {
+ ret = -EIO;
+ printk(KERN_ERR "meye: request_mem_region failed\n");
+ goto out4;
+ }
+
+ pci_read_config_byte(meye.mchip_dev, PCI_REVISION_ID, &revision);
+
+ pci_set_master(meye.mchip_dev);
+
+ pci_write_config_byte(meye.mchip_dev, PCI_CACHE_LINE_SIZE, 8);
+ pci_write_config_byte(meye.mchip_dev, PCI_LATENCY_TIMER, 64);
+
+ if ((ret = request_irq(meye.mchip_irq, meye_irq,
+ SA_INTERRUPT | SA_SHIRQ, "meye", meye_irq))) {
+ printk(KERN_ERR "meye: request_irq failed (ret=%d)\n", ret);
+ goto out5;
+ }
+
+ meye.mchip_mmregs = ioremap(mchip_adr, MCHIP_MM_REGS);
+ if (!meye.mchip_mmregs) {
+ printk(KERN_ERR "meye: ioremap failed\n");
+ ret = -EIO;
+ goto out6;
+ }
+
+ /* Ask the camera to perform a soft reset. */
+ pci_write_config_word(meye.mchip_dev, MCHIP_PCI_SOFTRESET_SET, 1);
+
+ mchip_delay(MCHIP_HIC_CMD, 0);
+ mchip_delay(MCHIP_HIC_STATUS, MCHIP_HIC_STATUS_IDLE);
+
+ wait_ms(1);
+ mchip_set(MCHIP_VRJ_SOFT_RESET, 1);
+
+ wait_ms(1);
+ mchip_set(MCHIP_MM_PCI_MODE, 5);
+
+ wait_ms(1);
+ mchip_set(MCHIP_MM_INTA, MCHIP_MM_INTA_HIC_1_MASK);
+
+ if (video_register_device(&meye.video_dev, VFL_TYPE_GRABBER, video_nr) < 0) {
+
+ printk(KERN_ERR "meye: video_register_device failed\n");
+ ret = -EIO;
+ goto out7;
+ }
+
+ printk(KERN_INFO "meye: Motion Eye Camera Driver v%d.%d.\n",
+ MEYE_DRIVER_MAJORVERSION,
+ MEYE_DRIVER_MINORVERSION);
+ printk(KERN_INFO "meye: mchip KL5A72002 rev. %d, base %lx, irq %d\n",
+ revision, mchip_adr, meye.mchip_irq);
+
+ /* init all fields */
+ init_MUTEX(&meye.lock);
+
+ meye.picture.depth = 2;
+ meye.picture.palette = VIDEO_PALETTE_YUV422;
+ meye.picture.brightness = 32 << 10;
+ meye.picture.hue = 32 << 10;
+ meye.picture.colour = 32 << 10;
+ meye.picture.contrast = 32 << 10;
+ meye.picture.whiteness = 0;
+ meye.params.subsample = 0;
+ meye.params.quality = 7;
+ meye.params.sharpness = 32;
+ meye.params.agc = 48;
+ meye.params.picture = 0;
+ meye.params.framerate = 0;
+ sonypi_camera_command(SONYPI_COMMAND_SETCAMERABRIGHTNESS, 32);
+ sonypi_camera_command(SONYPI_COMMAND_SETCAMERAHUE, 32);
+ sonypi_camera_command(SONYPI_COMMAND_SETCAMERACOLOR, 32);
+ sonypi_camera_command(SONYPI_COMMAND_SETCAMERACONTRAST, 32);
+ sonypi_camera_command(SONYPI_COMMAND_SETCAMERASHARPNESS, 32);
+ sonypi_camera_command(SONYPI_COMMAND_SETCAMERAPICTURE, 0);
+ sonypi_camera_command(SONYPI_COMMAND_SETCAMERAAGC, 48);
+
+ return 0;
+out7:
+ iounmap(meye.mchip_mmregs);
+out6:
+ free_irq(meye.mchip_irq, meye_irq);
+out5:
+ release_mem_region(pci_resource_start(meye.mchip_dev, 0),
+ pci_resource_len(meye.mchip_dev, 0));
+out4:
+ pci_disable_device(meye.mchip_dev);
+out3:
+ mchip_dma_free();
+out2:
+ sonypi_camera_command(SONYPI_COMMAND_SETCAMERA, 0);
+out1:
+ return ret;
+}
+
+static void __devexit meye_remove(struct pci_dev *pcidev) {
+
+ video_unregister_device(&meye.video_dev);
+
+ mchip_hic_stop();
+
+ /* disable interrupts */
+ mchip_set(MCHIP_MM_INTA, 0x0);
+
+ free_irq(meye.mchip_irq, meye_irq);
+
+
+ iounmap(meye.mchip_mmregs);
+
+ release_mem_region(pci_resource_start(meye.mchip_dev, 0),
+ pci_resource_len(meye.mchip_dev, 0));
+
+ pci_disable_device(meye.mchip_dev);
+
+ mchip_dma_free();
+
+ if (meye.grab_fbuffer)
+ rvfree(meye.grab_fbuffer, gbuffers*gbufsize);
+
+ sonypi_camera_command(SONYPI_COMMAND_SETCAMERA, 0);
+
+ printk(KERN_INFO "meye: removed\n");
+}
+
+static struct pci_device_id meye_pci_tbl[] __devinitdata = {
+ { PCI_VENDOR_ID_KAWASAKI, PCI_DEVICE_ID_MCHIP_KL5A72002,
+ PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
+ { }
+};
+
+MODULE_DEVICE_TABLE(pci, meye_pci_tbl);
+
+static struct pci_driver meye_driver = {
+ name: "meye",
+ id_table: meye_pci_tbl,
+ probe: meye_probe,
+ remove: meye_remove,
+};
+
+static int __init meye_init_module(void) {
+ if (gbuffers < 2)
+ gbuffers = 2;
+ if (gbuffers > MEYE_MAX_BUFNBRS)
+ gbuffers = MEYE_MAX_BUFNBRS;
+ if (gbufsize < 0 || gbufsize > MEYE_MAX_BUFSIZE)
+ gbufsize = MEYE_MAX_BUFSIZE;
+ printk(KERN_INFO "meye: using %d buffers with %dk (%dk total) for capture\n",
+ gbuffers, gbufsize/1024, gbuffers*gbufsize/1024);
+ return pci_module_init(&meye_driver);
+}
+
+static void __exit meye_cleanup_module(void) {
+ pci_unregister_driver(&meye_driver);
+}
+
+MODULE_AUTHOR("Stelian Pop <stelian.pop@fr.alcove.com>");
+MODULE_DESCRIPTION("video4linux driver for the MotionEye camera");
+
+MODULE_PARM(gbuffers,"i");
+MODULE_PARM_DESC(gbuffers,"number of capture buffers, default is 2 (32 max)");
+MODULE_PARM(gbufsize,"i");
+MODULE_PARM_DESC(gbufsize,"size of the capture buffers, default is 614400");
+MODULE_PARM(video_nr,"i");
+MODULE_PARM_DESC(video_nr,"video device to register (0=/dev/video0, etc)");
+
+/* Module entry points */
+module_init(meye_init_module);
+module_exit(meye_cleanup_module);
diff -uNr --exclude-from=dontdiff linux-2.4.5-ac12.orig/drivers/media/video/meye.h linux-2.4.5-ac12/drivers/media/video/meye.h
--- linux-2.4.5-ac12.orig/drivers/media/video/meye.h Thu Jan 1 01:00:00 1970
+++ linux-2.4.5-ac12/drivers/media/video/meye.h Sun Jun 10 14:20:34 2001
@@ -0,0 +1,313 @@
+/*
+ * Motion Eye video4linux driver for Sony Vaio PictureBook
+ *
+ * Copyright (C) 2001 Stelian Pop <stelian.pop@fr.alcove.com>, Alcôve
+ *
+ * Copyright (C) 2000 Andrew Tridgell <tridge@valinux.com>
+ *
+ * Earlier work by Werner Almesberger, Paul `Rusty' Russell and Paul Mackerras.
+ *
+ * Some parts borrowed from various video4linux drivers, especially
+ * bttv-driver.c and zoran.c, see original files for credits.
+ *
+ * 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.
+ */
+
+#ifndef _MEYE_PRIV_H_
+#define _MEYE_PRIV_H_
+
+#define MEYE_DRIVER_MAJORVERSION 1
+#define MEYE_DRIVER_MINORVERSION 0
+
+/****************************************************************************/
+/* Motion JPEG chip registers */
+/****************************************************************************/
+
+/* Motion JPEG chip PCI configuration registers */
+#define MCHIP_PCI_POWER_CSR 0x54
+#define MCHIP_PCI_MCORE_STATUS 0x60 /* see HIC_STATUS */
+#define MCHIP_PCI_HOSTUSEREQ_SET 0x64
+#define MCHIP_PCI_HOSTUSEREQ_CLR 0x68
+#define MCHIP_PCI_LOWPOWER_SET 0x6c
+#define MCHIP_PCI_LOWPOWER_CLR 0x70
+#define MCHIP_PCI_SOFTRESET_SET 0x74
+
+/* Motion JPEG chip memory mapped registers */
+#define MCHIP_MM_REGS 0x200 /* 512 bytes */
+#define MCHIP_REG_TIMEOUT 1000 /* reg access, ~us */
+#define MCHIP_MCC_VRJ_TIMEOUT 1000 /* MCC & VRJ access */
+
+#define MCHIP_MM_PCI_MODE 0x00 /* PCI access mode */
+#define MCHIP_MM_PCI_MODE_RETRY 0x00000001 /* retry mode */
+#define MCHIP_MM_PCI_MODE_MASTER 0x00000002 /* master access */
+#define MCHIP_MM_PCI_MODE_READ_LINE 0x00000004 /* read line */
+
+#define MCHIP_MM_INTA 0x04 /* Int status/mask */
+#define MCHIP_MM_INTA_MCC 0x00000001 /* MCC interrupt */
+#define MCHIP_MM_INTA_VRJ 0x00000002 /* VRJ interrupt */
+#define MCHIP_MM_INTA_HIC_1 0x00000004 /* one frame done */
+#define MCHIP_MM_INTA_HIC_1_MASK 0x00000400 /* 1: enable */
+#define MCHIP_MM_INTA_HIC_END 0x00000008 /* all frames done */
+#define MCHIP_MM_INTA_HIC_END_MASK 0x00000800
+#define MCHIP_MM_INTA_JPEG 0x00000010 /* decompress. error */
+#define MCHIP_MM_INTA_JPEG_MASK 0x00001000
+#define MCHIP_MM_INTA_CAPTURE 0x00000020 /* capture end */
+#define MCHIP_MM_INTA_PCI_ERR 0x00000040 /* PCI error */
+#define MCHIP_MM_INTA_PCI_ERR_MASK 0x00004000
+
+#define MCHIP_MM_PT_ADDR 0x08 /* page table address */
+ /* n*4kB */
+#define MCHIP_NB_PAGES 1024 /* pages for display */
+#define MCHIP_NB_PAGES_MJPEG 256 /* pages for mjpeg */
+
+#define MCHIP_MM_FIR(n) (0x0c+(n)*4) /* Frame info 0-3 */
+#define MCHIP_MM_FIR_RDY 0x00000001 /* frame ready */
+#define MCHIP_MM_FIR_FAILFR_MASK 0xf8000000 /* # of failed frames */
+#define MCHIP_MM_FIR_FAILFR_SHIFT 27
+
+ /* continuous comp/decomp mode */
+#define MCHIP_MM_FIR_C_ENDL_MASK 0x000007fe /* end DW [10] */
+#define MCHIP_MM_FIR_C_ENDL_SHIFT 1
+#define MCHIP_MM_FIR_C_ENDP_MASK 0x0007f800 /* end page [8] */
+#define MCHIP_MM_FIR_C_ENDP_SHIFT 11
+#define MCHIP_MM_FIR_C_STARTP_MASK 0x07f80000 /* start page [8] */
+#define MCHIP_MM_FIR_C_STARTP_SHIFT 19
+
+ /* continuous picture output mode */
+#define MCHIP_MM_FIR_O_STARTP_MASK 0x7ffe0000 /* start page [10] */
+#define MCHIP_MM_FIR_O_STARTP_SHIFT 17
+
+#define MCHIP_MM_FIFO_DATA 0x1c /* PCI TGT FIFO data */
+#define MCHIP_MM_FIFO_STATUS 0x20 /* PCI TGT FIFO stat */
+#define MCHIP_MM_FIFO_MASK 0x00000003
+#define MCHIP_MM_FIFO_WAIT_OR_READY 0x00000002 /* Bits common to WAIT & READY*/
+#define MCHIP_MM_FIFO_IDLE 0x0 /* HIC idle */
+#define MCHIP_MM_FIFO_IDLE1 0x1 /* idem ??? */
+#define MCHIP_MM_FIFO_WAIT 0x2 /* wait request */
+#define MCHIP_MM_FIFO_READY 0x3 /* data ready */
+
+#define MCHIP_HIC_HOST_USEREQ 0x40 /* host uses MCORE */
+
+#define MCHIP_HIC_TP_BUSY 0x44 /* taking picture */
+
+#define MCHIP_HIC_PIC_SAVED 0x48 /* pic in SDRAM */
+
+#define MCHIP_HIC_LOWPOWER 0x4c /* clock stopped */
+
+#define MCHIP_HIC_CTL 0x50 /* HIC control */
+#define MCHIP_HIC_CTL_SOFT_RESET 0x00000001 /* MCORE reset */
+#define MCHIP_HIC_CTL_MCORE_RDY 0x00000002 /* MCORE ready */
+
+#define MCHIP_HIC_CMD 0x54 /* HIC command */
+#define MCHIP_HIC_CMD_BITS 0x00000003 /* cmd width=[1:0]*/
+#define MCHIP_HIC_CMD_NOOP 0x0
+#define MCHIP_HIC_CMD_START 0x1
+#define MCHIP_HIC_CMD_STOP 0x2
+
+#define MCHIP_HIC_MODE 0x58
+#define MCHIP_HIC_MODE_NOOP 0x0
+#define MCHIP_HIC_MODE_STILL_CAP 0x1 /* still pic capt */
+#define MCHIP_HIC_MODE_DISPLAY 0x2 /* display */
+#define MCHIP_HIC_MODE_STILL_COMP 0x3 /* still pic comp. */
+#define MCHIP_HIC_MODE_STILL_DECOMP 0x4 /* still pic decomp. */
+#define MCHIP_HIC_MODE_CONT_COMP 0x5 /* cont capt+comp */
+#define MCHIP_HIC_MODE_CONT_DECOMP 0x6 /* cont decomp+disp */
+#define MCHIP_HIC_MODE_STILL_OUT 0x7 /* still pic output */
+#define MCHIP_HIC_MODE_CONT_OUT 0x8 /* cont output */
+
+#define MCHIP_HIC_STATUS 0x5c
+#define MCHIP_HIC_STATUS_MCC_RDY 0x00000001 /* MCC reg acc ok */
+#define MCHIP_HIC_STATUS_VRJ_RDY 0x00000002 /* VRJ reg acc ok */
+#define MCHIP_HIC_STATUS_IDLE 0x00000003
+#define MCHIP_HIC_STATUS_CAPDIS 0x00000004 /* cap/disp in prog */
+#define MCHIP_HIC_STATUS_COMPDEC 0x00000008 /* (de)comp in prog */
+#define MCHIP_HIC_STATUS_BUSY 0x00000010 /* HIC busy */
+
+#define MCHIP_HIC_S_RATE 0x60 /* MJPEG # frames */
+
+#define MCHIP_HIC_PCI_VFMT 0x64 /* video format */
+#define MCHIP_HIC_PCI_VFMT_YVYU 0x00000001 /* 0: V Y' U Y */
+ /* 1: Y' V Y U */
+
+#define MCHIP_MCC_CMD 0x80 /* MCC commands */
+#define MCHIP_MCC_CMD_INITIAL 0x0 /* idle ? */
+#define MCHIP_MCC_CMD_IIC_START_SET 0x1
+#define MCHIP_MCC_CMD_IIC_END_SET 0x2
+#define MCHIP_MCC_CMD_FM_WRITE 0x3 /* frame memory */
+#define MCHIP_MCC_CMD_FM_READ 0x4
+#define MCHIP_MCC_CMD_FM_STOP 0x5
+#define MCHIP_MCC_CMD_CAPTURE 0x6
+#define MCHIP_MCC_CMD_DISPLAY 0x7
+#define MCHIP_MCC_CMD_END_DISP 0x8
+#define MCHIP_MCC_CMD_STILL_COMP 0x9
+#define MCHIP_MCC_CMD_STILL_DECOMP 0xa
+#define MCHIP_MCC_CMD_STILL_OUTPUT 0xb
+#define MCHIP_MCC_CMD_CONT_OUTPUT 0xc
+#define MCHIP_MCC_CMD_CONT_COMP 0xd
+#define MCHIP_MCC_CMD_CONT_DECOMP 0xe
+#define MCHIP_MCC_CMD_RESET 0xf /* MCC reset */
+
+#define MCHIP_MCC_IIC_WR 0x84
+
+#define MCHIP_MCC_MCC_WR 0x88
+
+#define MCHIP_MCC_MCC_RD 0x8c
+
+#define MCHIP_MCC_STATUS 0x90
+#define MCHIP_MCC_STATUS_CAPT 0x00000001 /* capturing */
+#define MCHIP_MCC_STATUS_DISP 0x00000002 /* displaying */
+#define MCHIP_MCC_STATUS_COMP 0x00000004 /* compressing */
+#define MCHIP_MCC_STATUS_DECOMP 0x00000008 /* decompressing */
+#define MCHIP_MCC_STATUS_MCC_WR 0x00000010 /* register ready */
+#define MCHIP_MCC_STATUS_MCC_RD 0x00000020 /* register ready */
+#define MCHIP_MCC_STATUS_IIC_WR 0x00000040 /* register ready */
+#define MCHIP_MCC_STATUS_OUTPUT 0x00000080 /* output in prog */
+
+#define MCHIP_MCC_SIG_POLARITY 0x94
+#define MCHIP_MCC_SIG_POL_VS_H 0x00000001 /* VS active-high */
+#define MCHIP_MCC_SIG_POL_HS_H 0x00000002 /* HS active-high */
+#define MCHIP_MCC_SIG_POL_DOE_H 0x00000004 /* DOE active-high */
+
+#define MCHIP_MCC_IRQ 0x98
+#define MCHIP_MCC_IRQ_CAPDIS_STRT 0x00000001 /* cap/disp started */
+#define MCHIP_MCC_IRQ_CAPDIS_STRT_MASK 0x00000010
+#define MCHIP_MCC_IRQ_CAPDIS_END 0x00000002 /* cap/disp ended */
+#define MCHIP_MCC_IRQ_CAPDIS_END_MASK 0x00000020
+#define MCHIP_MCC_IRQ_COMPDEC_STRT 0x00000004 /* (de)comp started */
+#define MCHIP_MCC_IRQ_COMPDEC_STRT_MASK 0x00000040
+#define MCHIP_MCC_IRQ_COMPDEC_END 0x00000008 /* (de)comp ended */
+#define MCHIP_MCC_IRQ_COMPDEC_END_MASK 0x00000080
+
+#define MCHIP_MCC_HSTART 0x9c /* video in */
+#define MCHIP_MCC_VSTART 0xa0
+#define MCHIP_MCC_HCOUNT 0xa4
+#define MCHIP_MCC_VCOUNT 0xa8
+#define MCHIP_MCC_R_XBASE 0xac /* capt/disp */
+#define MCHIP_MCC_R_YBASE 0xb0
+#define MCHIP_MCC_R_XRANGE 0xb4
+#define MCHIP_MCC_R_YRANGE 0xb8
+#define MCHIP_MCC_B_XBASE 0xbc /* comp/decomp */
+#define MCHIP_MCC_B_YBASE 0xc0
+#define MCHIP_MCC_B_XRANGE 0xc4
+#define MCHIP_MCC_B_YRANGE 0xc8
+
+#define MCHIP_MCC_R_SAMPLING 0xcc /* 1: 1:4 */
+
+#define MCHIP_VRJ_CMD 0x100 /* VRJ commands */
+
+/* VRJ registers (see table 12.2.4) */
+#define MCHIP_VRJ_COMPRESSED_DATA 0x1b0
+#define MCHIP_VRJ_PIXEL_DATA 0x1b8
+
+#define MCHIP_VRJ_BUS_MODE 0x100
+#define MCHIP_VRJ_SIGNAL_ACTIVE_LEVEL 0x108
+#define MCHIP_VRJ_PDAT_USE 0x110
+#define MCHIP_VRJ_MODE_SPECIFY 0x118
+#define MCHIP_VRJ_LIMIT_COMPRESSED_LO 0x120
+#define MCHIP_VRJ_LIMIT_COMPRESSED_HI 0x124
+#define MCHIP_VRJ_COMP_DATA_FORMAT 0x128
+#define MCHIP_VRJ_TABLE_DATA 0x140
+#define MCHIP_VRJ_RESTART_INTERVAL 0x148
+#define MCHIP_VRJ_NUM_LINES 0x150
+#define MCHIP_VRJ_NUM_PIXELS 0x158
+#define MCHIP_VRJ_NUM_COMPONENTS 0x160
+#define MCHIP_VRJ_SOF1 0x168
+#define MCHIP_VRJ_SOF2 0x170
+#define MCHIP_VRJ_SOF3 0x178
+#define MCHIP_VRJ_SOF4 0x180
+#define MCHIP_VRJ_SOS 0x188
+#define MCHIP_VRJ_SOFT_RESET 0x190
+
+#define MCHIP_VRJ_STATUS 0x1c0
+#define MCHIP_VRJ_STATUS_BUSY 0x00001
+#define MCHIP_VRJ_STATUS_COMP_ACCESS 0x00002
+#define MCHIP_VRJ_STATUS_PIXEL_ACCESS 0x00004
+#define MCHIP_VRJ_STATUS_ERROR 0x00008
+
+#define MCHIP_VRJ_IRQ_FLAG 0x1c8
+#define MCHIP_VRJ_ERROR_REPORT 0x1d8
+
+#define MCHIP_VRJ_START_COMMAND 0x1a0
+
+/****************************************************************************/
+/* Driver definitions. */
+/****************************************************************************/
+
+/* Sony Programmable I/O Controller for accessing the camera commands */
+#include <linux/sonypi.h>
+
+/* private API definitions */
+#include <linux/meye.h>
+
+/* Enable jpg software correction */
+#define MEYE_JPEG_CORRECTION 1
+
+/* Maximum size of a buffer */
+#define MEYE_MAX_BUFSIZE 614400 /* 640 * 480 * 2 */
+
+/* Maximum number of buffers */
+#define MEYE_MAX_BUFNBRS 32
+
+/* State of a buffer */
+#define MEYE_BUF_UNUSED 0 /* not used */
+#define MEYE_BUF_USING 1 /* currently grabbing / playing */
+#define MEYE_BUF_DONE 2 /* done */
+
+/* grab buffer */
+struct meye_grab_buffer {
+ int state; /* state of buffer */
+ unsigned long size; /* size of jpg frame */
+};
+
+/* queues containing the buffer indices */
+#define MEYE_QUEUE_SIZE MEYE_MAX_BUFNBRS
+struct meye_queue {
+ unsigned int head; /* queue head */
+ unsigned int tail; /* queue tail */
+ unsigned int len; /* queue length */
+ spinlock_t s_lock; /* spinlock protecting the queue */
+ wait_queue_head_t proc_list; /* wait queue */
+ int buf[MEYE_QUEUE_SIZE]; /* queue contents */
+};
+
+/* Motion Eye device structure */
+struct meye {
+
+ /* mchip related */
+ struct pci_dev *mchip_dev; /* pci device */
+ u8 mchip_irq; /* irq */
+ u8 mchip_mode; /* actual mchip mode: HIC_MODE... */
+ u8 mchip_fnum; /* current mchip frame number */
+
+ unsigned char *mchip_mmregs; /* mchip: memory mapped registers */
+ unsigned char *mchip_fbuffer; /* mchip: framebuffer */
+ u32 mchip_ptaddr; /* mchip: pointer to framebuffer */
+
+ unsigned char *grab_fbuffer; /* capture framebuffer */
+ /* list of buffers */
+ struct meye_grab_buffer grab_buffer[MEYE_MAX_BUFNBRS];
+
+ /* other */
+ unsigned int open_count; /* open() count */
+ struct semaphore lock; /* semaphore for open/mmap... */
+
+ struct meye_queue grabq; /* queue for buffers to be grabbed */
+
+ struct video_device video_dev; /* video device parameters */
+ struct video_picture picture; /* video picture parameters */
+ struct meye_params params; /* additional parameters */
+};
+
+#endif
diff -uNr --exclude-from=dontdiff linux-2.4.5-ac12.orig/include/linux/meye.h linux-2.4.5-ac12/include/linux/meye.h
--- linux-2.4.5-ac12.orig/include/linux/meye.h Thu Jan 1 01:00:00 1970
+++ linux-2.4.5-ac12/include/linux/meye.h Thu Jun 7 15:48:57 2001
@@ -0,0 +1,57 @@
+/*
+ * Motion Eye video4linux driver for Sony Vaio PictureBook
+ *
+ * Copyright (C) 2001 Stelian Pop <stelian.pop@fr.alcove.com>, Alcôve
+ *
+ * Copyright (C) 2000 Andrew Tridgell <tridge@valinux.com>
+ *
+ * Earlier work by Werner Almesberger, Paul `Rusty' Russell and Paul Mackerras.
+ *
+ * Some parts borrowed from various video4linux drivers, especially
+ * bttv-driver.c and zoran.c, see original files for credits.
+ *
+ * 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.
+ */
+
+#ifndef _MEYE_H_
+#define _MEYE_H_
+
+/****************************************************************************/
+/* Private API for handling mjpeg capture / playback. */
+/****************************************************************************/
+
+struct meye_params {
+ unsigned char subsample;
+ unsigned char quality;
+ unsigned char sharpness;
+ unsigned char agc;
+ unsigned char picture;
+ unsigned char framerate;
+};
+
+/* query the extended parameters */
+#define MEYEIOC_G_PARAMS _IOR ('v', BASE_VIDIOCPRIVATE+0, struct meye_params)
+/* set the extended parameters */
+#define MEYEIOC_S_PARAMS _IOW ('v', BASE_VIDIOCPRIVATE+1, struct meye_params)
+/* queue a buffer for mjpeg capture */
+#define MEYEIOC_QBUF_CAPT _IOW ('v', BASE_VIDIOCPRIVATE+2, int)
+/* sync a previously queued mjpeg buffer */
+#define MEYEIOC_SYNC _IOWR('v', BASE_VIDIOCPRIVATE+3, int)
+/* get a still uncompressed snapshot */
+#define MEYEIOC_STILLCAPT _IO ('v', BASE_VIDIOCPRIVATE+4)
+/* get a jpeg compressed snapshot */
+#define MEYEIOC_STILLJCAPT _IOR ('v', BASE_VIDIOCPRIVATE+5, int)
+
+#endif
diff -uNr --exclude-from=dontdiff linux-2.4.5-ac12.orig/include/linux/pci_ids.h linux-2.4.5-ac12/include/linux/pci_ids.h
--- linux-2.4.5-ac12.orig/include/linux/pci_ids.h Sun Jun 10 13:42:18 2001
+++ linux-2.4.5-ac12/include/linux/pci_ids.h Sun Jun 10 13:49:19 2001
@@ -1304,6 +1304,9 @@
#define PCI_SUBDEVICE_ID_HYPERCOPE_CHAMP2 0x0108
#define PCI_SUBDEVICE_ID_HYPERCOPE_PLEXUS 0x0109

+#define PCI_VENDOR_ID_KAWASAKI 0x136b
+#define PCI_DEVICE_ID_MCHIP_KL5A72002 0xff01
+
#define PCI_VENDOR_ID_LMC 0x1376
#define PCI_DEVICE_ID_LMC_HSSI 0x0003
#define PCI_DEVICE_ID_LMC_DS3 0x0004
diff -uNr --exclude-from=dontdiff linux-2.4.5-ac12.orig/include/linux/videodev.h linux-2.4.5-ac12/include/linux/videodev.h
--- linux-2.4.5-ac12.orig/include/linux/videodev.h Sun Jun 10 13:41:25 2001
+++ linux-2.4.5-ac12/include/linux/videodev.h Sun Jun 10 14:20:32 2001
@@ -375,6 +375,7 @@
#define VID_HARDWARE_W9966 29
#define VID_HARDWARE_SE401 30 /* SE401 USB webcams */
#define VID_HARDWARE_PWC 31 /* Philips webcams */
+#define VID_HARDWARE_MEYE 32 /* Sony Vaio MotionEye cameras */

/*
* Initialiser list
--
Stelian Pop <stelian.pop@fr.alcove.com>
|---------------- Free Software Engineer -----------------|
| Alcôve - http://www.alcove.com - Tel: +33 1 49 22 68 00 |
|------------- Alcôve, liberating software ---------------|
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