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authorHans Verkuil <hverkuil@xs4all.nl>2008-10-09 05:51:22 -0300
committerMauro Carvalho Chehab <mchehab@redhat.com>2008-10-12 09:39:04 -0200
commit45d011031d745d2c9a21c21d289428cb7f88a2d0 (patch)
treef9d8cf3b8dd12541396b3a2b867d7ad8c8207490 /drivers/media/video/zr36050.c
parent19c309e383610453604092473287f77233f31e90 (diff)
V4L/DVB (9129): zoran: move zoran sources into a zoran subdirectory
Prevent the zoran driver sources from cluttering the video directory. This changeset only moves the drivers and it does not fix any of the checkpatch warnings/errors to keep the changeset clean. Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Diffstat (limited to 'drivers/media/video/zr36050.c')
-rw-r--r--drivers/media/video/zr36050.c904
1 files changed, 0 insertions, 904 deletions
diff --git a/drivers/media/video/zr36050.c b/drivers/media/video/zr36050.c
deleted file mode 100644
index cf8b271a1c8f..000000000000
--- a/drivers/media/video/zr36050.c
+++ /dev/null
@@ -1,904 +0,0 @@
-/*
- * Zoran ZR36050 basic configuration functions
- *
- * Copyright (C) 2001 Wolfgang Scherr <scherr@net4you.at>
- *
- * $Id: zr36050.c,v 1.1.2.11 2003/08/03 14:54:53 rbultje Exp $
- *
- * ------------------------------------------------------------------------
- *
- * 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.
- *
- * ------------------------------------------------------------------------
- */
-
-#define ZR050_VERSION "v0.7.1"
-
-#include <linux/module.h>
-#include <linux/init.h>
-#include <linux/slab.h>
-#include <linux/delay.h>
-
-#include <linux/types.h>
-#include <linux/wait.h>
-
-/* includes for structures and defines regarding video
- #include<linux/videodev.h> */
-
-/* I/O commands, error codes */
-#include <asm/io.h>
-//#include<errno.h>
-
-/* headerfile of this module */
-#include "zr36050.h"
-
-/* codec io API */
-#include "videocodec.h"
-
-/* it doesn't make sense to have more than 20 or so,
- just to prevent some unwanted loops */
-#define MAX_CODECS 20
-
-/* amount of chips attached via this driver */
-static int zr36050_codecs;
-
-/* debugging is available via module parameter */
-static int debug;
-module_param(debug, int, 0);
-MODULE_PARM_DESC(debug, "Debug level (0-4)");
-
-#define dprintk(num, format, args...) \
- do { \
- if (debug >= num) \
- printk(format, ##args); \
- } while (0)
-
-/* =========================================================================
- Local hardware I/O functions:
-
- read/write via codec layer (registers are located in the master device)
- ========================================================================= */
-
-/* read and write functions */
-static u8
-zr36050_read (struct zr36050 *ptr,
- u16 reg)
-{
- u8 value = 0;
-
- // just in case something is wrong...
- if (ptr->codec->master_data->readreg)
- value = (ptr->codec->master_data->readreg(ptr->codec,
- reg)) & 0xFF;
- else
- dprintk(1,
- KERN_ERR "%s: invalid I/O setup, nothing read!\n",
- ptr->name);
-
- dprintk(4, "%s: reading from 0x%04x: %02x\n", ptr->name, reg,
- value);
-
- return value;
-}
-
-static void
-zr36050_write (struct zr36050 *ptr,
- u16 reg,
- u8 value)
-{
- dprintk(4, "%s: writing 0x%02x to 0x%04x\n", ptr->name, value,
- reg);
-
- // just in case something is wrong...
- if (ptr->codec->master_data->writereg)
- ptr->codec->master_data->writereg(ptr->codec, reg, value);
- else
- dprintk(1,
- KERN_ERR
- "%s: invalid I/O setup, nothing written!\n",
- ptr->name);
-}
-
-/* =========================================================================
- Local helper function:
-
- status read
- ========================================================================= */
-
-/* status is kept in datastructure */
-static u8
-zr36050_read_status1 (struct zr36050 *ptr)
-{
- ptr->status1 = zr36050_read(ptr, ZR050_STATUS_1);
-
- zr36050_read(ptr, 0);
- return ptr->status1;
-}
-
-/* =========================================================================
- Local helper function:
-
- scale factor read
- ========================================================================= */
-
-/* scale factor is kept in datastructure */
-static u16
-zr36050_read_scalefactor (struct zr36050 *ptr)
-{
- ptr->scalefact = (zr36050_read(ptr, ZR050_SF_HI) << 8) |
- (zr36050_read(ptr, ZR050_SF_LO) & 0xFF);
-
- /* leave 0 selected for an eventually GO from master */
- zr36050_read(ptr, 0);
- return ptr->scalefact;
-}
-
-/* =========================================================================
- Local helper function:
-
- wait if codec is ready to proceed (end of processing) or time is over
- ========================================================================= */
-
-static void
-zr36050_wait_end (struct zr36050 *ptr)
-{
- int i = 0;
-
- while (!(zr36050_read_status1(ptr) & 0x4)) {
- udelay(1);
- if (i++ > 200000) { // 200ms, there is for sure something wrong!!!
- dprintk(1,
- "%s: timeout at wait_end (last status: 0x%02x)\n",
- ptr->name, ptr->status1);
- break;
- }
- }
-}
-
-/* =========================================================================
- Local helper function:
-
- basic test of "connectivity", writes/reads to/from memory the SOF marker
- ========================================================================= */
-
-static int
-zr36050_basic_test (struct zr36050 *ptr)
-{
- zr36050_write(ptr, ZR050_SOF_IDX, 0x00);
- zr36050_write(ptr, ZR050_SOF_IDX + 1, 0x00);
- if ((zr36050_read(ptr, ZR050_SOF_IDX) |
- zr36050_read(ptr, ZR050_SOF_IDX + 1)) != 0x0000) {
- dprintk(1,
- KERN_ERR
- "%s: attach failed, can't connect to jpeg processor!\n",
- ptr->name);
- return -ENXIO;
- }
- zr36050_write(ptr, ZR050_SOF_IDX, 0xff);
- zr36050_write(ptr, ZR050_SOF_IDX + 1, 0xc0);
- if (((zr36050_read(ptr, ZR050_SOF_IDX) << 8) |
- zr36050_read(ptr, ZR050_SOF_IDX + 1)) != 0xffc0) {
- dprintk(1,
- KERN_ERR
- "%s: attach failed, can't connect to jpeg processor!\n",
- ptr->name);
- return -ENXIO;
- }
-
- zr36050_wait_end(ptr);
- if ((ptr->status1 & 0x4) == 0) {
- dprintk(1,
- KERN_ERR
- "%s: attach failed, jpeg processor failed (end flag)!\n",
- ptr->name);
- return -EBUSY;
- }
-
- return 0; /* looks good! */
-}
-
-/* =========================================================================
- Local helper function:
-
- simple loop for pushing the init datasets
- ========================================================================= */
-
-static int
-zr36050_pushit (struct zr36050 *ptr,
- u16 startreg,
- u16 len,
- const char *data)
-{
- int i = 0;
-
- dprintk(4, "%s: write data block to 0x%04x (len=%d)\n", ptr->name,
- startreg, len);
- while (i < len) {
- zr36050_write(ptr, startreg++, data[i++]);
- }
-
- return i;
-}
-
-/* =========================================================================
- Basic datasets:
-
- jpeg baseline setup data (you find it on lots places in internet, or just
- extract it from any regular .jpg image...)
-
- Could be variable, but until it's not needed it they are just fixed to save
- memory. Otherwise expand zr36050 structure with arrays, push the values to
- it and initalize from there, as e.g. the linux zr36057/60 driver does it.
- ========================================================================= */
-
-static const char zr36050_dqt[0x86] = {
- 0xff, 0xdb, //Marker: DQT
- 0x00, 0x84, //Length: 2*65+2
- 0x00, //Pq,Tq first table
- 0x10, 0x0b, 0x0c, 0x0e, 0x0c, 0x0a, 0x10, 0x0e,
- 0x0d, 0x0e, 0x12, 0x11, 0x10, 0x13, 0x18, 0x28,
- 0x1a, 0x18, 0x16, 0x16, 0x18, 0x31, 0x23, 0x25,
- 0x1d, 0x28, 0x3a, 0x33, 0x3d, 0x3c, 0x39, 0x33,
- 0x38, 0x37, 0x40, 0x48, 0x5c, 0x4e, 0x40, 0x44,
- 0x57, 0x45, 0x37, 0x38, 0x50, 0x6d, 0x51, 0x57,
- 0x5f, 0x62, 0x67, 0x68, 0x67, 0x3e, 0x4d, 0x71,
- 0x79, 0x70, 0x64, 0x78, 0x5c, 0x65, 0x67, 0x63,
- 0x01, //Pq,Tq second table
- 0x11, 0x12, 0x12, 0x18, 0x15, 0x18, 0x2f, 0x1a,
- 0x1a, 0x2f, 0x63, 0x42, 0x38, 0x42, 0x63, 0x63,
- 0x63, 0x63, 0x63, 0x63, 0x63, 0x63, 0x63, 0x63,
- 0x63, 0x63, 0x63, 0x63, 0x63, 0x63, 0x63, 0x63,
- 0x63, 0x63, 0x63, 0x63, 0x63, 0x63, 0x63, 0x63,
- 0x63, 0x63, 0x63, 0x63, 0x63, 0x63, 0x63, 0x63,
- 0x63, 0x63, 0x63, 0x63, 0x63, 0x63, 0x63, 0x63,
- 0x63, 0x63, 0x63, 0x63, 0x63, 0x63, 0x63, 0x63
-};
-
-static const char zr36050_dht[0x1a4] = {
- 0xff, 0xc4, //Marker: DHT
- 0x01, 0xa2, //Length: 2*AC, 2*DC
- 0x00, //DC first table
- 0x00, 0x01, 0x05, 0x01, 0x01, 0x01, 0x01, 0x01,
- 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01,
- 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, 0x09, 0x0A, 0x0B,
- 0x01, //DC second table
- 0x00, 0x03, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01,
- 0x01, 0x01, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01,
- 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, 0x09, 0x0A, 0x0B,
- 0x10, //AC first table
- 0x00, 0x02, 0x01, 0x03, 0x03, 0x02, 0x04, 0x03,
- 0x05, 0x05, 0x04, 0x04, 0x00, 0x00,
- 0x01, 0x7D, 0x01, 0x02, 0x03, 0x00, 0x04, 0x11,
- 0x05, 0x12, 0x21, 0x31, 0x41, 0x06, 0x13, 0x51, 0x61,
- 0x07, 0x22, 0x71, 0x14, 0x32, 0x81, 0x91, 0xA1,
- 0x08, 0x23, 0x42, 0xB1, 0xC1, 0x15, 0x52, 0xD1, 0xF0, 0x24,
- 0x33, 0x62, 0x72, 0x82, 0x09, 0x0A, 0x16, 0x17,
- 0x18, 0x19, 0x1A, 0x25, 0x26, 0x27, 0x28, 0x29, 0x2A, 0x34,
- 0x35, 0x36, 0x37, 0x38, 0x39, 0x3A, 0x43, 0x44,
- 0x45, 0x46, 0x47, 0x48, 0x49, 0x4A, 0x53, 0x54, 0x55, 0x56,
- 0x57, 0x58, 0x59, 0x5A, 0x63, 0x64, 0x65, 0x66,
- 0x67, 0x68, 0x69, 0x6A, 0x73, 0x74, 0x75, 0x76, 0x77, 0x78,
- 0x79, 0x7A, 0x83, 0x84, 0x85, 0x86, 0x87, 0x88,
- 0x89, 0x8A, 0x92, 0x93, 0x94, 0x95, 0x96, 0x97, 0x98, 0x99,
- 0x9A, 0xA2, 0xA3, 0xA4, 0xA5, 0xA6, 0xA7, 0xA8,
- 0xA9, 0xAA, 0xB2, 0xB3, 0xB4, 0xB5, 0xB6, 0xB7, 0xB8, 0xB9,
- 0xBA, 0xC2, 0xC3, 0xC4, 0xC5, 0xC6, 0xC7, 0xC8,
- 0xC9, 0xCA, 0xD2, 0xD3, 0xD4, 0xD5, 0xD6, 0xD7, 0xD8, 0xD9,
- 0xDA, 0xE1, 0xE2, 0xE3, 0xE4, 0xE5, 0xE6, 0xE7,
- 0xE8, 0xE9, 0xEA, 0xF1, 0xF2, 0xF3, 0xF4, 0xF5, 0xF6, 0xF7,
- 0xF8, 0xF9, 0xFA,
- 0x11, //AC second table
- 0x00, 0x02, 0x01, 0x02, 0x04, 0x04, 0x03, 0x04,
- 0x07, 0x05, 0x04, 0x04, 0x00, 0x01,
- 0x02, 0x77, 0x00, 0x01, 0x02, 0x03, 0x11, 0x04,
- 0x05, 0x21, 0x31, 0x06, 0x12, 0x41, 0x51, 0x07, 0x61, 0x71,
- 0x13, 0x22, 0x32, 0x81, 0x08, 0x14, 0x42, 0x91,
- 0xA1, 0xB1, 0xC1, 0x09, 0x23, 0x33, 0x52, 0xF0, 0x15, 0x62,
- 0x72, 0xD1, 0x0A, 0x16, 0x24, 0x34, 0xE1, 0x25,
- 0xF1, 0x17, 0x18, 0x19, 0x1A, 0x26, 0x27, 0x28, 0x29, 0x2A,
- 0x35, 0x36, 0x37, 0x38, 0x39, 0x3A, 0x43, 0x44,
- 0x45, 0x46, 0x47, 0x48, 0x49, 0x4A, 0x53, 0x54, 0x55, 0x56,
- 0x57, 0x58, 0x59, 0x5A, 0x63, 0x64, 0x65, 0x66,
- 0x67, 0x68, 0x69, 0x6A, 0x73, 0x74, 0x75, 0x76, 0x77, 0x78,
- 0x79, 0x7A, 0x82, 0x83, 0x84, 0x85, 0x86, 0x87,
- 0x88, 0x89, 0x8A, 0x92, 0x93, 0x94, 0x95, 0x96, 0x97, 0x98,
- 0x99, 0x9A, 0xA2, 0xA3, 0xA4, 0xA5, 0xA6, 0xA7,
- 0xA8, 0xA9, 0xAA, 0xB2, 0xB3, 0xB4, 0xB5, 0xB6, 0xB7, 0xB8,
- 0xB9, 0xBA, 0xC2, 0xC3, 0xC4, 0xC5, 0xC6, 0xC7,
- 0xC8, 0xC9, 0xCA, 0xD2, 0xD3, 0xD4, 0xD5, 0xD6, 0xD7, 0xD8,
- 0xD9, 0xDA, 0xE2, 0xE3, 0xE4, 0xE5, 0xE6, 0xE7,
- 0xE8, 0xE9, 0xEA, 0xF2, 0xF3, 0xF4, 0xF5, 0xF6, 0xF7, 0xF8,
- 0xF9, 0xFA
-};
-
-/* jpeg baseline setup, this is just fixed in this driver (YUV pictures) */
-#define NO_OF_COMPONENTS 0x3 //Y,U,V
-#define BASELINE_PRECISION 0x8 //MCU size (?)
-static const char zr36050_tq[8] = { 0, 1, 1, 0, 0, 0, 0, 0 }; //table idx's QT
-static const char zr36050_td[8] = { 0, 1, 1, 0, 0, 0, 0, 0 }; //table idx's DC
-static const char zr36050_ta[8] = { 0, 1, 1, 0, 0, 0, 0, 0 }; //table idx's AC
-
-/* horizontal 422 decimation setup (maybe we support 411 or so later, too) */
-static const char zr36050_decimation_h[8] = { 2, 1, 1, 0, 0, 0, 0, 0 };
-static const char zr36050_decimation_v[8] = { 1, 1, 1, 0, 0, 0, 0, 0 };
-
-/* =========================================================================
- Local helper functions:
-
- calculation and setup of parameter-dependent JPEG baseline segments
- (needed for compression only)
- ========================================================================= */
-
-/* ------------------------------------------------------------------------- */
-
-/* SOF (start of frame) segment depends on width, height and sampling ratio
- of each color component */
-
-static int
-zr36050_set_sof (struct zr36050 *ptr)
-{
- char sof_data[34]; // max. size of register set
- int i;
-
- dprintk(3, "%s: write SOF (%dx%d, %d components)\n", ptr->name,
- ptr->width, ptr->height, NO_OF_COMPONENTS);
- sof_data[0] = 0xff;
- sof_data[1] = 0xc0;
- sof_data[2] = 0x00;
- sof_data[3] = (3 * NO_OF_COMPONENTS) + 8;
- sof_data[4] = BASELINE_PRECISION; // only '8' possible with zr36050
- sof_data[5] = (ptr->height) >> 8;
- sof_data[6] = (ptr->height) & 0xff;
- sof_data[7] = (ptr->width) >> 8;
- sof_data[8] = (ptr->width) & 0xff;
- sof_data[9] = NO_OF_COMPONENTS;
- for (i = 0; i < NO_OF_COMPONENTS; i++) {
- sof_data[10 + (i * 3)] = i; // index identifier
- sof_data[11 + (i * 3)] = (ptr->h_samp_ratio[i] << 4) | (ptr->v_samp_ratio[i]); // sampling ratios
- sof_data[12 + (i * 3)] = zr36050_tq[i]; // Q table selection
- }
- return zr36050_pushit(ptr, ZR050_SOF_IDX,
- (3 * NO_OF_COMPONENTS) + 10, sof_data);
-}
-
-/* ------------------------------------------------------------------------- */
-
-/* SOS (start of scan) segment depends on the used scan components
- of each color component */
-
-static int
-zr36050_set_sos (struct zr36050 *ptr)
-{
- char sos_data[16]; // max. size of register set
- int i;
-
- dprintk(3, "%s: write SOS\n", ptr->name);
- sos_data[0] = 0xff;
- sos_data[1] = 0xda;
- sos_data[2] = 0x00;
- sos_data[3] = 2 + 1 + (2 * NO_OF_COMPONENTS) + 3;
- sos_data[4] = NO_OF_COMPONENTS;
- for (i = 0; i < NO_OF_COMPONENTS; i++) {
- sos_data[5 + (i * 2)] = i; // index
- sos_data[6 + (i * 2)] = (zr36050_td[i] << 4) | zr36050_ta[i]; // AC/DC tbl.sel.
- }
- sos_data[2 + 1 + (2 * NO_OF_COMPONENTS) + 2] = 00; // scan start
- sos_data[2 + 1 + (2 * NO_OF_COMPONENTS) + 3] = 0x3F;
- sos_data[2 + 1 + (2 * NO_OF_COMPONENTS) + 4] = 00;
- return zr36050_pushit(ptr, ZR050_SOS1_IDX,
- 4 + 1 + (2 * NO_OF_COMPONENTS) + 3,
- sos_data);
-}
-
-/* ------------------------------------------------------------------------- */
-
-/* DRI (define restart interval) */
-
-static int
-zr36050_set_dri (struct zr36050 *ptr)
-{
- char dri_data[6]; // max. size of register set
-
- dprintk(3, "%s: write DRI\n", ptr->name);
- dri_data[0] = 0xff;
- dri_data[1] = 0xdd;
- dri_data[2] = 0x00;
- dri_data[3] = 0x04;
- dri_data[4] = ptr->dri >> 8;
- dri_data[5] = ptr->dri & 0xff;
- return zr36050_pushit(ptr, ZR050_DRI_IDX, 6, dri_data);
-}
-
-/* =========================================================================
- Setup function:
-
- Setup compression/decompression of Zoran's JPEG processor
- ( see also zoran 36050 manual )
-
- ... sorry for the spaghetti code ...
- ========================================================================= */
-static void
-zr36050_init (struct zr36050 *ptr)
-{
- int sum = 0;
- long bitcnt, tmp;
-
- if (ptr->mode == CODEC_DO_COMPRESSION) {
- dprintk(2, "%s: COMPRESSION SETUP\n", ptr->name);
-
- /* 050 communicates with 057 in master mode */
- zr36050_write(ptr, ZR050_HARDWARE, ZR050_HW_MSTR);
-
- /* encoding table preload for compression */
- zr36050_write(ptr, ZR050_MODE,
- ZR050_MO_COMP | ZR050_MO_TLM);
- zr36050_write(ptr, ZR050_OPTIONS, 0);
-
- /* disable all IRQs */
- zr36050_write(ptr, ZR050_INT_REQ_0, 0);
- zr36050_write(ptr, ZR050_INT_REQ_1, 3); // low 2 bits always 1
-
- /* volume control settings */
- /*zr36050_write(ptr, ZR050_MBCV, ptr->max_block_vol);*/
- zr36050_write(ptr, ZR050_SF_HI, ptr->scalefact >> 8);
- zr36050_write(ptr, ZR050_SF_LO, ptr->scalefact & 0xff);
-
- zr36050_write(ptr, ZR050_AF_HI, 0xff);
- zr36050_write(ptr, ZR050_AF_M, 0xff);
- zr36050_write(ptr, ZR050_AF_LO, 0xff);
-
- /* setup the variable jpeg tables */
- sum += zr36050_set_sof(ptr);
- sum += zr36050_set_sos(ptr);
- sum += zr36050_set_dri(ptr);
-
- /* setup the fixed jpeg tables - maybe variable, though -
- * (see table init section above) */
- dprintk(3, "%s: write DQT, DHT, APP\n", ptr->name);
- sum += zr36050_pushit(ptr, ZR050_DQT_IDX,
- sizeof(zr36050_dqt), zr36050_dqt);
- sum += zr36050_pushit(ptr, ZR050_DHT_IDX,
- sizeof(zr36050_dht), zr36050_dht);
- zr36050_write(ptr, ZR050_APP_IDX, 0xff);
- zr36050_write(ptr, ZR050_APP_IDX + 1, 0xe0 + ptr->app.appn);
- zr36050_write(ptr, ZR050_APP_IDX + 2, 0x00);
- zr36050_write(ptr, ZR050_APP_IDX + 3, ptr->app.len + 2);
- sum += zr36050_pushit(ptr, ZR050_APP_IDX + 4, 60,
- ptr->app.data) + 4;
- zr36050_write(ptr, ZR050_COM_IDX, 0xff);
- zr36050_write(ptr, ZR050_COM_IDX + 1, 0xfe);
- zr36050_write(ptr, ZR050_COM_IDX + 2, 0x00);
- zr36050_write(ptr, ZR050_COM_IDX + 3, ptr->com.len + 2);
- sum += zr36050_pushit(ptr, ZR050_COM_IDX + 4, 60,
- ptr->com.data) + 4;
-
- /* do the internal huffman table preload */
- zr36050_write(ptr, ZR050_MARKERS_EN, ZR050_ME_DHTI);
-
- zr36050_write(ptr, ZR050_GO, 1); // launch codec
- zr36050_wait_end(ptr);
- dprintk(2, "%s: Status after table preload: 0x%02x\n",
- ptr->name, ptr->status1);
-
- if ((ptr->status1 & 0x4) == 0) {
- dprintk(1, KERN_ERR "%s: init aborted!\n",
- ptr->name);
- return; // something is wrong, its timed out!!!!
- }
-
- /* setup misc. data for compression (target code sizes) */
-
- /* size of compressed code to reach without header data */
- sum = ptr->real_code_vol - sum;
- bitcnt = sum << 3; /* need the size in bits */
-
- tmp = bitcnt >> 16;
- dprintk(3,
- "%s: code: csize=%d, tot=%d, bit=%ld, highbits=%ld\n",
- ptr->name, sum, ptr->real_code_vol, bitcnt, tmp);
- zr36050_write(ptr, ZR050_TCV_NET_HI, tmp >> 8);
- zr36050_write(ptr, ZR050_TCV_NET_MH, tmp & 0xff);
- tmp = bitcnt & 0xffff;
- zr36050_write(ptr, ZR050_TCV_NET_ML, tmp >> 8);
- zr36050_write(ptr, ZR050_TCV_NET_LO, tmp & 0xff);
-
- bitcnt -= bitcnt >> 7; // bits without stuffing
- bitcnt -= ((bitcnt * 5) >> 6); // bits without eob
-
- tmp = bitcnt >> 16;
- dprintk(3, "%s: code: nettobit=%ld, highnettobits=%ld\n",
- ptr->name, bitcnt, tmp);
- zr36050_write(ptr, ZR050_TCV_DATA_HI, tmp >> 8);
- zr36050_write(ptr, ZR050_TCV_DATA_MH, tmp & 0xff);
- tmp = bitcnt & 0xffff;
- zr36050_write(ptr, ZR050_TCV_DATA_ML, tmp >> 8);
- zr36050_write(ptr, ZR050_TCV_DATA_LO, tmp & 0xff);
-
- /* compression setup with or without bitrate control */
- zr36050_write(ptr, ZR050_MODE,
- ZR050_MO_COMP | ZR050_MO_PASS2 |
- (ptr->bitrate_ctrl ? ZR050_MO_BRC : 0));
-
- /* this headers seem to deliver "valid AVI" jpeg frames */
- zr36050_write(ptr, ZR050_MARKERS_EN,
- ZR050_ME_DQT | ZR050_ME_DHT |
- ((ptr->app.len > 0) ? ZR050_ME_APP : 0) |
- ((ptr->com.len > 0) ? ZR050_ME_COM : 0));
- } else {
- dprintk(2, "%s: EXPANSION SETUP\n", ptr->name);
-
- /* 050 communicates with 055 in master mode */
- zr36050_write(ptr, ZR050_HARDWARE,
- ZR050_HW_MSTR | ZR050_HW_CFIS_2_CLK);
-
- /* encoding table preload */
- zr36050_write(ptr, ZR050_MODE, ZR050_MO_TLM);
-
- /* disable all IRQs */
- zr36050_write(ptr, ZR050_INT_REQ_0, 0);
- zr36050_write(ptr, ZR050_INT_REQ_1, 3); // low 2 bits always 1
-
- dprintk(3, "%s: write DHT\n", ptr->name);
- zr36050_pushit(ptr, ZR050_DHT_IDX, sizeof(zr36050_dht),
- zr36050_dht);
-
- /* do the internal huffman table preload */
- zr36050_write(ptr, ZR050_MARKERS_EN, ZR050_ME_DHTI);
-
- zr36050_write(ptr, ZR050_GO, 1); // launch codec
- zr36050_wait_end(ptr);
- dprintk(2, "%s: Status after table preload: 0x%02x\n",
- ptr->name, ptr->status1);
-
- if ((ptr->status1 & 0x4) == 0) {
- dprintk(1, KERN_ERR "%s: init aborted!\n",
- ptr->name);
- return; // something is wrong, its timed out!!!!
- }
-
- /* setup misc. data for expansion */
- zr36050_write(ptr, ZR050_MODE, 0);
- zr36050_write(ptr, ZR050_MARKERS_EN, 0);
- }
-
- /* adr on selected, to allow GO from master */
- zr36050_read(ptr, 0);
-}
-
-/* =========================================================================
- CODEC API FUNCTIONS
-
- this functions are accessed by the master via the API structure
- ========================================================================= */
-
-/* set compression/expansion mode and launches codec -
- this should be the last call from the master before starting processing */
-static int
-zr36050_set_mode (struct videocodec *codec,
- int mode)
-{
- struct zr36050 *ptr = (struct zr36050 *) codec->data;
-
- dprintk(2, "%s: set_mode %d call\n", ptr->name, mode);
-
- if ((mode != CODEC_DO_EXPANSION) && (mode != CODEC_DO_COMPRESSION))
- return -EINVAL;
-
- ptr->mode = mode;
- zr36050_init(ptr);
-
- return 0;
-}
-
-/* set picture size (norm is ignored as the codec doesn't know about it) */
-static int
-zr36050_set_video (struct videocodec *codec,
- struct tvnorm *norm,
- struct vfe_settings *cap,
- struct vfe_polarity *pol)
-{
- struct zr36050 *ptr = (struct zr36050 *) codec->data;
- int size;
-
- dprintk(2, "%s: set_video %d.%d, %d/%d-%dx%d (0x%x) q%d call\n",
- ptr->name, norm->HStart, norm->VStart,
- cap->x, cap->y, cap->width, cap->height,
- cap->decimation, cap->quality);
- /* if () return -EINVAL;
- * trust the master driver that it knows what it does - so
- * we allow invalid startx/y and norm for now ... */
- ptr->width = cap->width / (cap->decimation & 0xff);
- ptr->height = cap->height / ((cap->decimation >> 8) & 0xff);
-
- /* (KM) JPEG quality */
- size = ptr->width * ptr->height;
- size *= 16; /* size in bits */
- /* apply quality setting */
- size = size * cap->quality / 200;
-
- /* Minimum: 1kb */
- if (size < 8192)
- size = 8192;
- /* Maximum: 7/8 of code buffer */
- if (size > ptr->total_code_vol * 7)
- size = ptr->total_code_vol * 7;
-
- ptr->real_code_vol = size >> 3; /* in bytes */
-
- /* Set max_block_vol here (previously in zr36050_init, moved
- * here for consistency with zr36060 code */
- zr36050_write(ptr, ZR050_MBCV, ptr->max_block_vol);
-
- return 0;
-}
-
-/* additional control functions */
-static int
-zr36050_control (struct videocodec *codec,
- int type,
- int size,
- void *data)
-{
- struct zr36050 *ptr = (struct zr36050 *) codec->data;
- int *ival = (int *) data;
-
- dprintk(2, "%s: control %d call with %d byte\n", ptr->name, type,
- size);
-
- switch (type) {
- case CODEC_G_STATUS: /* get last status */
- if (size != sizeof(int))
- return -EFAULT;
- zr36050_read_status1(ptr);
- *ival = ptr->status1;
- break;
-
- case CODEC_G_CODEC_MODE:
- if (size != sizeof(int))
- return -EFAULT;
- *ival = CODEC_MODE_BJPG;
- break;
-
- case CODEC_S_CODEC_MODE:
- if (size != sizeof(int))
- return -EFAULT;
- if (*ival != CODEC_MODE_BJPG)
- return -EINVAL;
- /* not needed, do nothing */
- return 0;
-
- case CODEC_G_VFE:
- case CODEC_S_VFE:
- /* not needed, do nothing */
- return 0;
-
- case CODEC_S_MMAP:
- /* not available, give an error */
- return -ENXIO;
-
- case CODEC_G_JPEG_TDS_BYTE: /* get target volume in byte */
- if (size != sizeof(int))
- return -EFAULT;
- *ival = ptr->total_code_vol;
- break;
-
- case CODEC_S_JPEG_TDS_BYTE: /* get target volume in byte */
- if (size != sizeof(int))
- return -EFAULT;
- ptr->total_code_vol = *ival;
- /* (Kieran Morrissey)
- * code copied from zr36060.c to ensure proper bitrate */
- ptr->real_code_vol = (ptr->total_code_vol * 6) >> 3;
- break;
-
- case CODEC_G_JPEG_SCALE: /* get scaling factor */
- if (size != sizeof(int))
- return -EFAULT;
- *ival = zr36050_read_scalefactor(ptr);
- break;
-
- case CODEC_S_JPEG_SCALE: /* set scaling factor */
- if (size != sizeof(int))
- return -EFAULT;
- ptr->scalefact = *ival;
- break;
-
- case CODEC_G_JPEG_APP_DATA: { /* get appn marker data */
- struct jpeg_app_marker *app = data;
-
- if (size != sizeof(struct jpeg_app_marker))
- return -EFAULT;
-
- *app = ptr->app;
- break;
- }
-
- case CODEC_S_JPEG_APP_DATA: { /* set appn marker data */
- struct jpeg_app_marker *app = data;
-
- if (size != sizeof(struct jpeg_app_marker))
- return -EFAULT;
-
- ptr->app = *app;
- break;
- }
-
- case CODEC_G_JPEG_COM_DATA: { /* get comment marker data */
- struct jpeg_com_marker *com = data;
-
- if (size != sizeof(struct jpeg_com_marker))
- return -EFAULT;
-
- *com = ptr->com;
- break;
- }
-
- case CODEC_S_JPEG_COM_DATA: { /* set comment marker data */
- struct jpeg_com_marker *com = data;
-
- if (size != sizeof(struct jpeg_com_marker))
- return -EFAULT;
-
- ptr->com = *com;
- break;
- }
-
- default:
- return -EINVAL;
- }
-
- return size;
-}
-
-/* =========================================================================
- Exit and unregister function:
-
- Deinitializes Zoran's JPEG processor
- ========================================================================= */
-
-static int
-zr36050_unset (struct videocodec *codec)
-{
- struct zr36050 *ptr = codec->data;
-
- if (ptr) {
- /* do wee need some codec deinit here, too ???? */
-
- dprintk(1, "%s: finished codec #%d\n", ptr->name,
- ptr->num);
- kfree(ptr);
- codec->data = NULL;
-
- zr36050_codecs--;
- return 0;
- }
-
- return -EFAULT;
-}
-
-/* =========================================================================
- Setup and registry function:
-
- Initializes Zoran's JPEG processor
-
- Also sets pixel size, average code size, mode (compr./decompr.)
- (the given size is determined by the processor with the video interface)
- ========================================================================= */
-
-static int
-zr36050_setup (struct videocodec *codec)
-{
- struct zr36050 *ptr;
- int res;
-
- dprintk(2, "zr36050: initializing MJPEG subsystem #%d.\n",
- zr36050_codecs);
-
- if (zr36050_codecs == MAX_CODECS) {
- dprintk(1,
- KERN_ERR "zr36050: Can't attach more codecs!\n");
- return -ENOSPC;
- }
- //mem structure init
- codec->data = ptr = kzalloc(sizeof(struct zr36050), GFP_KERNEL);
- if (NULL == ptr) {
- dprintk(1, KERN_ERR "zr36050: Can't get enough memory!\n");
- return -ENOMEM;
- }
-
- snprintf(ptr->name, sizeof(ptr->name), "zr36050[%d]",
- zr36050_codecs);
- ptr->num = zr36050_codecs++;
- ptr->codec = codec;
-
- //testing
- res = zr36050_basic_test(ptr);
- if (res < 0) {
- zr36050_unset(codec);
- return res;
- }
- //final setup
- memcpy(ptr->h_samp_ratio, zr36050_decimation_h, 8);
- memcpy(ptr->v_samp_ratio, zr36050_decimation_v, 8);
-
- ptr->bitrate_ctrl = 0; /* 0 or 1 - fixed file size flag
- * (what is the difference?) */
- ptr->mode = CODEC_DO_COMPRESSION;
- ptr->width = 384;
- ptr->height = 288;
- ptr->total_code_vol = 16000;
- ptr->max_block_vol = 240;
- ptr->scalefact = 0x100;
- ptr->dri = 1;
-
- /* no app/com marker by default */
- ptr->app.appn = 0;
- ptr->app.len = 0;
- ptr->com.len = 0;
-
- zr36050_init(ptr);
-
- dprintk(1, KERN_INFO "%s: codec attached and running\n",
- ptr->name);
-
- return 0;
-}
-
-static const struct videocodec zr36050_codec = {
- .owner = THIS_MODULE,
- .name = "zr36050",
- .magic = 0L, // magic not used
- .flags =
- CODEC_FLAG_JPEG | CODEC_FLAG_HARDWARE | CODEC_FLAG_ENCODER |
- CODEC_FLAG_DECODER,
- .type = CODEC_TYPE_ZR36050,
- .setup = zr36050_setup, // functionality
- .unset = zr36050_unset,
- .set_mode = zr36050_set_mode,
- .set_video = zr36050_set_video,
- .control = zr36050_control,
- // others are not used
-};
-
-/* =========================================================================
- HOOK IN DRIVER AS KERNEL MODULE
- ========================================================================= */
-
-static int __init
-zr36050_init_module (void)
-{
- //dprintk(1, "ZR36050 driver %s\n",ZR050_VERSION);
- zr36050_codecs = 0;
- return videocodec_register(&zr36050_codec);
-}
-
-static void __exit
-zr36050_cleanup_module (void)
-{
- if (zr36050_codecs) {
- dprintk(1,
- "zr36050: something's wrong - %d codecs left somehow.\n",
- zr36050_codecs);
- }
- videocodec_unregister(&zr36050_codec);
-}
-
-module_init(zr36050_init_module);
-module_exit(zr36050_cleanup_module);
-
-MODULE_AUTHOR("Wolfgang Scherr <scherr@net4you.at>");
-MODULE_DESCRIPTION("Driver module for ZR36050 jpeg processors "
- ZR050_VERSION);
-MODULE_LICENSE("GPL");