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M7350/kernel/arch/arm/mach-msm/qdsp6/msm_q6vdec.c

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M7350v1_en_gpl
2024-09-09 08:52:07 +00:00
/* Copyright (c) 2008-2010, The Linux Foundation. All rights reserved.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 and
* only version 2 as published by the Free Software Foundation.
*
* 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.
*
*/
/*
#define DEBUG_TRACE_VDEC
#define DEBUG
*/
#include <linux/slab.h>
#include <linux/cdev.h>
#include <linux/delay.h>
#include <linux/file.h>
#include <linux/fs.h>
#include <linux/list.h>
#include <linux/miscdevice.h>
#include <linux/module.h>
#include <linux/mutex.h>
#include <linux/platform_device.h>
#include <linux/sched.h>
#include <linux/spinlock.h>
#include <linux/uaccess.h>
#include <linux/wakelock.h>
#include <linux/pm_qos.h>
#include <linux/msm_q6vdec.h>
#include <mach/cpuidle.h>
#include "dal.h"
#define DALDEVICEID_VDEC_DEVICE 0x02000026
#define DALDEVICEID_VDEC_PORTNAME "DAL_AQ_VID"
#define VDEC_INTERFACE_VERSION 0x00020000
#define MAJOR_MASK 0xFFFF0000
#define MINOR_MASK 0x0000FFFF
#define VDEC_GET_MAJOR_VERSION(version) (((version)&MAJOR_MASK)>>16)
#define VDEC_GET_MINOR_VERSION(version) ((version)&MINOR_MASK)
#ifdef DEBUG_TRACE_VDEC
#define TRACE(fmt,x...) \
do { pr_debug("%s:%d " fmt, __func__, __LINE__, ##x); } while (0)
#else
#define TRACE(fmt,x...) do { } while (0)
#endif
#define YAMATO_COLOR_FORMAT 0x02
#define MAX_Q6_LOAD ((720*1280)/256) /* 720p */
#define MAX_Q6_LOAD_YAMATO ((736*1280)/256)
#define MAX_Q6_LOAD_VP6 ((800*480)/256)
#define VDEC_MAX_PORTS 4
/*
*why magic number 300?
*the Maximum size of the DAL payload is 512 bytes according to DAL protocol
*Initialize call to QDSP6 from scorpion need to send sequence header as part of
*the DAL payload. DAL payload to initialize contains the following
*1) configuration data- 52 bytes 2) length field of config data - 4 bytes
*3) sequence header data ( that is from the bit stream)
*4) length field for sequence header - 4 bytes
*5) length field for output structure - 4 bytes
*that left with 512 - 68 = 448 bytes. It is unusual that we get a sequence
*header with such a big length unless the bit stream has multiple sequence
*headers.We estimated 300 is good enough which gives enough room for rest
*of the payload and even reserves some space for future payload.
*/
#define VDEC_MAX_SEQ_HEADER_SIZE 300
char *Q6Portnames[] = {
"DAL_AQ_VID_0",
"DAL_AQ_VID_1",
"DAL_AQ_VID_2",
"DAL_AQ_VID_3"
};
#define DALDEVICEID_VDEC_DEVICE_0 0x020000D2
#define DALDEVICEID_VDEC_DEVICE_1 0x020000D3
#define DALDEVICEID_VDEC_DEVICE_2 0x020000D4
#define DALDEVICEID_VDEC_DEVICE_3 0x020000D5
#define DALDEVICEID_VDEC_DEVICE_4 0x020000D6
#define DALDEVICEID_VDEC_DEVICE_5 0x020000D7
#define DALDEVICEID_VDEC_DEVICE_6 0x020000D8
#define DALDEVICEID_VDEC_DEVICE_7 0x020000D9
#define DALDEVICEID_VDEC_DEVICE_8 0x020000DA
#define DALDEVICEID_VDEC_DEVICE_9 0x020000DB
#define DALDEVICEID_VDEC_DEVICE_10 0x020000DC
#define DALDEVICEID_VDEC_DEVICE_11 0x020000DD
#define DALDEVICEID_VDEC_DEVICE_12 0x020000DE
#define DALDEVICEID_VDEC_DEVICE_13 0x020000DF
#define DALDEVICEID_VDEC_DEVICE_14 0x020000E0
#define DALDEVICEID_VDEC_DEVICE_15 0x020000E1
#define DALDEVICEID_VDEC_DEVICE_16 0x020000E2
#define DALDEVICEID_VDEC_DEVICE_17 0x020000E3
#define DALDEVICEID_VDEC_DEVICE_18 0x020000E4
#define DALDEVICEID_VDEC_DEVICE_19 0x020000E5
#define DALDEVICEID_VDEC_DEVICE_20 0x020000E6
#define DALDEVICEID_VDEC_DEVICE_21 0x020000E7
#define DALDEVICEID_VDEC_DEVICE_22 0x020000E8
#define DALDEVICEID_VDEC_DEVICE_23 0x020000E9
#define DALDEVICEID_VDEC_DEVICE_24 0x020000EA
#define DALDEVICEID_VDEC_DEVICE_25 0x020000EB
#define DALDEVICEID_VDEC_DEVICE_26 0x020000EC
#define DALDEVICEID_VDEC_DEVICE_27 0x020000ED
#define DALDEVICEID_VDEC_DEVICE_28 0x020000EE
#define DALDEVICEID_VDEC_DEVICE_29 0x020000EF
#define DALDEVICEID_VDEC_DEVICE_30 0x020000F0
#define DALDEVICEID_VDEC_DEVICE_31 0x020000F1
#define DALVDEC_MAX_DEVICE_IDS 32
static int numOfPorts;
static char loadOnPorts[VDEC_MAX_PORTS];
static char deviceIdRegistry[DALVDEC_MAX_DEVICE_IDS];
#define VDEC_DEVID_FREE 0
#define VDEC_DEVID_OCCUPIED 1
#define MAX_SUPPORTED_INSTANCES 6
#define MAKEFOURCC(ch0, ch1, ch2, ch3) ((unsigned int)(unsigned char)(ch0) | \
((unsigned int)(unsigned char)(ch1) << 8) | \
((unsigned int)(unsigned char)(ch2) << 16) | \
((unsigned int)(unsigned char)(ch3) << 24))
#define FOURCC_MPEG4 MAKEFOURCC('m', 'p', '4', 'v')
#define FOURCC_H263 MAKEFOURCC('h', '2', '6', '3')
#define FOURCC_H264 MAKEFOURCC('h', '2', '6', '4')
#define FOURCC_VC1 MAKEFOURCC('w', 'm', 'v', '3')
#define FOURCC_DIVX MAKEFOURCC('D', 'I', 'V', 'X')
#define FOURCC_SPARK MAKEFOURCC('F', 'L', 'V', '1')
#define FOURCC_VP6 MAKEFOURCC('V', 'P', '6', '0')
/* static struct vdec_data *multiInstances[MAX_SUPPORTED_INSTANCES];*/
static int totalPlaybackQ6load;
static int totalTnailQ6load;
#define FLAG_THUMBNAIL_MODE 0x8
#define MAX_TNAILS 3
#define TRUE 1
#define FALSE 0
enum {
VDEC_DALRPC_INITIALIZE = DAL_OP_FIRST_DEVICE_API,
VDEC_DALRPC_SETBUFFERS,
VDEC_DALRPC_FREEBUFFERS,
VDEC_DALRPC_QUEUE,
VDEC_DALRPC_SIGEOFSTREAM,
VDEC_DALRPC_FLUSH,
VDEC_DALRPC_REUSEFRAMEBUFFER,
VDEC_DALRPC_GETDECATTRIBUTES,
VDEC_DALRPC_SUSPEND,
VDEC_DALRPC_RESUME,
VDEC_DALRPC_INITIALIZE_00,
VDEC_DALRPC_GETINTERNALBUFFERREQ,
VDEC_DALRPC_SETBUFFERS_00,
VDEC_DALRPC_FREEBUFFERS_00,
VDEC_DALRPC_GETPROPERTY,
VDEC_DALRPC_SETPROPERTY,
VDEC_DALRPC_GETDECATTRIBUTES_00,
VDEC_DALRPC_PERFORMANCE_CHANGE_REQUEST
};
enum {
VDEC_ASYNCMSG_DECODE_DONE = 0xdec0de00,
VDEC_ASYNCMSG_REUSE_FRAME,
};
struct vdec_init_cfg {
u32 decode_done_evt;
u32 reuse_frame_evt;
struct vdec_config cfg;
};
struct vdec_buffer_status {
u32 data;
u32 status;
};
#define VDEC_MSG_MAX 128
struct vdec_msg_list {
struct list_head list;
struct vdec_msg vdec_msg;
};
struct vdec_mem_info {
u32 buf_type;
u32 id;
unsigned long phys_addr;
unsigned long len;
struct file *file;
};
struct vdec_mem_list {
struct list_head list;
struct vdec_mem_info mem;
};
struct videoStreamDetails{
int height;
int width;
unsigned int fourcc;
int Q6usage;
bool isThisTnail;
bool isTnailGranted;
};
struct vdec_data {
struct dal_client *vdec_handle;
unsigned int Q6deviceId;
struct videoStreamDetails streamDetails;
struct list_head vdec_msg_list_head;
struct list_head vdec_msg_list_free;
wait_queue_head_t vdec_msg_evt;
spinlock_t vdec_list_lock;
struct list_head vdec_mem_list_head;
spinlock_t vdec_mem_list_lock;
int mem_initialized;
int running;
int close_decode;
};
static struct class *driver_class;
static dev_t vdec_device_no;
static struct cdev vdec_cdev;
static int ref_cnt;
static DEFINE_MUTEX(vdec_ref_lock);
static DEFINE_MUTEX(idlecount_lock);
static DEFINE_MUTEX(vdec_rm_lock);
static int idlecount;
static struct wake_lock wakelock;
static struct pm_qos_request pm_qos_req;
static void prevent_sleep(void)
{
mutex_lock(&idlecount_lock);
if (++idlecount == 1) {
pm_qos_update_request(&pm_qos_req,
msm_cpuidle_get_deep_idle_latency());
wake_lock(&wakelock);
}
mutex_unlock(&idlecount_lock);
}
static void allow_sleep(void)
{
mutex_lock(&idlecount_lock);
if (--idlecount == 0) {
wake_unlock(&wakelock);
pm_qos_update_request(&pm_qos_req, PM_QOS_DEFAULT_VALUE);
}
mutex_unlock(&idlecount_lock);
}
static inline int vdec_check_version(u32 client, u32 server)
{
int ret = -EINVAL;
if ((VDEC_GET_MAJOR_VERSION(client) == VDEC_GET_MAJOR_VERSION(server))
&& (VDEC_GET_MINOR_VERSION(client) <=
VDEC_GET_MINOR_VERSION(server)))
ret = 0;
return ret;
}
static int vdec_get_msg(struct vdec_data *vd, void *msg)
{
struct vdec_msg_list *l;
unsigned long flags;
int ret = 0;
if (!vd->running)
return -EPERM;
spin_lock_irqsave(&vd->vdec_list_lock, flags);
list_for_each_entry_reverse(l, &vd->vdec_msg_list_head, list) {
if (copy_to_user(msg, &l->vdec_msg, sizeof(struct vdec_msg)))
pr_err("vdec_get_msg failed to copy_to_user!\n");
if (l->vdec_msg.id == VDEC_MSG_REUSEINPUTBUFFER)
TRACE("reuse_input_buffer %d\n", l->vdec_msg.buf_id);
else if (l->vdec_msg.id == VDEC_MSG_FRAMEDONE)
TRACE("frame_done (stat=%d)\n",
l->vdec_msg.vfr_info.status);
else
TRACE("unknown msg (msgid=%d)\n", l->vdec_msg.id);
list_del(&l->list);
list_add(&l->list, &vd->vdec_msg_list_free);
ret = 1;
break;
}
spin_unlock_irqrestore(&vd->vdec_list_lock, flags);
if (vd->close_decode)
ret = 1;
return ret;
}
static void vdec_put_msg(struct vdec_data *vd, struct vdec_msg *msg)
{
struct vdec_msg_list *l;
unsigned long flags;
int found = 0;
spin_lock_irqsave(&vd->vdec_list_lock, flags);
list_for_each_entry(l, &vd->vdec_msg_list_free, list) {
memcpy(&l->vdec_msg, msg, sizeof(struct vdec_msg));
list_del(&l->list);
list_add(&l->list, &vd->vdec_msg_list_head);
found = 1;
break;
}
spin_unlock_irqrestore(&vd->vdec_list_lock, flags);
if (found)
wake_up(&vd->vdec_msg_evt);
else
pr_err("vdec_put_msg can't find free list!\n");
}
static struct vdec_mem_list *vdec_get_mem_from_list(struct vdec_data *vd,
u32 pmem_id, u32 buf_type)
{
struct vdec_mem_list *l;
unsigned long flags;
int found = 0;
spin_lock_irqsave(&vd->vdec_mem_list_lock, flags);
list_for_each_entry(l, &vd->vdec_mem_list_head, list) {
if (l->mem.buf_type == buf_type && l->mem.id == pmem_id) {
found = 1;
break;
}
}
spin_unlock_irqrestore(&vd->vdec_mem_list_lock, flags);
if (found)
return l;
else
return NULL;
}
static int vdec_setproperty(struct vdec_data *vd, void *argp)
{
struct vdec_property_info property;
int res;
if (copy_from_user(&property, argp, sizeof(struct vdec_property_info)))
return -1;
res = dal_call_f6(vd->vdec_handle, VDEC_DALRPC_SETPROPERTY,
property.id, &(property.property), sizeof(union vdec_property));
if (res)
TRACE("Set Property failed");
else
TRACE("Set Property succeeded");
return res;
}
static int vdec_getproperty(struct vdec_data *vd, void *argp)
{
int res;
union vdec_property property = {0};
res = dal_call_f11(vd->vdec_handle, VDEC_DALRPC_GETPROPERTY,
((struct vdec_property_info *)argp)->id, &property,
sizeof(union vdec_property));
if (res)
TRACE("get Property failed");
else
TRACE("get Property succeeded");
res = copy_to_user(
(&((struct vdec_property_info *)argp)->property),
&property, sizeof(property));
return res;
}
static int vdec_performance_change_request(struct vdec_data *vd, void* argp)
{
u32 request_type;
int ret;
ret = copy_from_user(&request_type, argp, sizeof(request_type));
if (ret) {
pr_err("%s: copy_from_user failed\n", __func__);
return ret;
}
ret = dal_call_f0(vd->vdec_handle,
VDEC_DALRPC_PERFORMANCE_CHANGE_REQUEST,
request_type);
if (ret) {
pr_err("%s: remote function failed (%d)\n", __func__, ret);
return ret;
}
return ret;
}
#ifdef TRACE_PORTS
static void printportsanddeviceids(void)
{
int i;
pr_err("\n\n%s:loadOnPorts", __func__);
for (i = 0; i < numOfPorts; i++)
pr_err("\t%d", loadOnPorts[i]);
pr_err("\n\n");
pr_err("\n\n%s:Devids", __func__);
for (i = 0; i < DALVDEC_MAX_DEVICE_IDS; i++)
pr_err("Devid[%d]:%d\n", i, deviceIdRegistry[i]);
pr_err("\n\n");
}
#endif /*TRACE_PORTS*/
/*
*
* This method is used to get the number of ports supported on the Q6
*
*/
static int vdec_get_numberofq6ports(void)
{
struct dal_client *vdec_handle = NULL;
int retval = 0;
union vdec_property property = {0};
vdec_handle = dal_attach(DALDEVICEID_VDEC_DEVICE,
DALDEVICEID_VDEC_PORTNAME, 1, NULL, NULL);
if (!vdec_handle) {
pr_err("%s: failed to attach\n", __func__);
return 1;/* default setting */
}
retval = dal_call_f6(vdec_handle, VDEC_DALRPC_GETPROPERTY,
VDEC_NUM_DAL_PORTS, (void *)&property, sizeof(union vdec_property));
if (retval) {
pr_err("%s: Q6get prperty failed\n", __func__);
return 1;/* default setting */
}
dal_detach(vdec_handle);
return property.num_dal_ports ;
}
/**
* This method is used to get the find the least loaded port and a corresponding
* free device id in that port.
*
* Prerequisite: vdec_open should have been called.
*
* @param[in] deviceid
* device id will be populated here.
*
* @param[in] portname
* portname will be populated here.
*/
static void vdec_get_next_portanddevid(int *deviceid, char **portname)
{
int i = 0;
int leastLoad = 0;
int leastLoadedIndex = 0;
if (0 == numOfPorts) {
numOfPorts = vdec_get_numberofq6ports();
pr_err("%s: Q6get numOfPorts %d\n", __func__, numOfPorts);
numOfPorts = 4;
/*fix: me currently hard coded to 4 as
*the Q6 getproperty is failing
*/
}
if ((NULL == deviceid) || (NULL == portname))
return;
else
*deviceid = 0; /* init value */
if (numOfPorts > 1) {
/* multi ports mode*/
/* find the least loaded port*/
for (i = 1, leastLoad = loadOnPorts[0], leastLoadedIndex = 0;
i < numOfPorts; i++) {
if (leastLoad > loadOnPorts[i]) {
leastLoadedIndex = i;
leastLoad = loadOnPorts[i];
}
}
/* register the load */
loadOnPorts[leastLoadedIndex]++;
*portname = Q6Portnames[leastLoadedIndex];
/* find a free device id corresponding to the port*/
for (i = leastLoadedIndex; i < DALVDEC_MAX_DEVICE_IDS;
i += numOfPorts) {
if (VDEC_DEVID_FREE == deviceIdRegistry[i]) {
deviceIdRegistry[i] = VDEC_DEVID_OCCUPIED;
*deviceid = DALDEVICEID_VDEC_DEVICE_0 + i;
break;
}
}
#ifdef TRACE_PORTS
printportsanddeviceids();
#endif /*TRACE_PORTS*/
} else if (1 == numOfPorts) {
/* single port mode */
*deviceid = DALDEVICEID_VDEC_DEVICE;
*portname = DALDEVICEID_VDEC_PORTNAME;
} else if (numOfPorts <= 0) {
pr_err("%s: FATAL error numOfPorts cannot be \
less than or equal to zero\n", __func__);
}
}
/**
* This method frees up the used dev id and decrements the port load.
*
*/
static void vdec_freeup_portanddevid(int deviceid)
{
if (numOfPorts > 1) {
/* multi ports mode*/
if (VDEC_DEVID_FREE ==
deviceIdRegistry[deviceid - DALDEVICEID_VDEC_DEVICE_0])
pr_err("device id cannot be already free\n");
deviceIdRegistry[deviceid - DALDEVICEID_VDEC_DEVICE_0] =
VDEC_DEVID_FREE;
loadOnPorts[(deviceid - DALDEVICEID_VDEC_DEVICE_0)
% numOfPorts]--;
if (loadOnPorts[(deviceid - DALDEVICEID_VDEC_DEVICE_0)
% numOfPorts] < 0)
pr_err("Warning:load cannot be negative\n");
pr_err("dettaching on deviceid %x portname %s\n", deviceid,
Q6Portnames[(deviceid - DALDEVICEID_VDEC_DEVICE_0)
% numOfPorts]);
#ifdef TRACE_PORTS
printportsanddeviceids();
#endif /*TRACE_PORTS*/
} else {
/*single port mode, nothing to be done here*/
}
}
/**
* This method validates whether a new instance can be houred or not.
*
*/
static int vdec_rm_checkWithRm(struct vdec_data *vdecInstance,
unsigned int color_format)
{
unsigned int maxQ6load = 0;/* in the units of macro blocks per second */
unsigned int currentq6load = 0;
struct videoStreamDetails *streamDetails = &vdecInstance->streamDetails;
if (streamDetails->isThisTnail) {
if (totalTnailQ6load < MAX_TNAILS) {
totalTnailQ6load++;
streamDetails->isTnailGranted = TRUE;
pr_info("%s: thumbnail granted %d\n", __func__,
totalTnailQ6load);
return 0;
} else {
pr_err("%s: thumbnails load max this instance cannot \
be supported\n", __func__);
streamDetails->isTnailGranted = FALSE;
return -ENOSPC;
}
}
/* calculate the Q6 percentage instance would need */
if ((streamDetails->fourcc == FOURCC_MPEG4) ||
(streamDetails->fourcc == FOURCC_H264) ||
(streamDetails->fourcc == FOURCC_DIVX) ||
(streamDetails->fourcc == FOURCC_VC1) ||
(streamDetails->fourcc == FOURCC_SPARK) ||
(streamDetails->fourcc == FOURCC_H263)
){
/* is yamato color format,
Rounds the H & W --> mutiple of 32 */
if (color_format == YAMATO_COLOR_FORMAT)
maxQ6load = MAX_Q6_LOAD_YAMATO;
else
maxQ6load = MAX_Q6_LOAD; /* 720p */
} else if (streamDetails->fourcc == FOURCC_VP6) {
maxQ6load = MAX_Q6_LOAD_VP6; /* FWVGA */
} else {
pr_err("%s: unknown fourcc %d maxQ6load %u\n", __func__,
streamDetails->fourcc, maxQ6load);
return -EINVAL;
}
currentq6load = ((streamDetails->height)*(streamDetails->width) / 256);
currentq6load = ((currentq6load * 100)/maxQ6load);
if ((currentq6load+totalPlaybackQ6load) > 100) {
/* reject this instance */
pr_err("%s: too much Q6load [cur+tot] = [%d + %d] = %d",
__func__, currentq6load, totalPlaybackQ6load,
(currentq6load+totalPlaybackQ6load));
pr_err("rejecting the instance,[WxH] = [%d x %d],color_fmt=0x%x\n",
streamDetails->width, streamDetails->height, color_format);
pr_err("VDEC_fmt=%s\n", (char *)(&streamDetails->fourcc));
streamDetails->Q6usage = 0;
return -ENOSPC;
}
totalPlaybackQ6load += currentq6load;
streamDetails->Q6usage = currentq6load;
pr_info("%s: adding a load [%d%%] bringing total Q6load to [%d%%]\n",
__func__, currentq6load, totalPlaybackQ6load);
return 0;
}
static int vdec_initialize(struct vdec_data *vd, void *argp)
{
struct vdec_config_sps vdec_cfg_sps;
struct vdec_init_cfg vi_cfg;
struct vdec_buf_req vdec_buf_req;
struct u8 *header;
int ret = 0;
ret = copy_from_user(&vdec_cfg_sps,
&((struct vdec_init *)argp)->sps_cfg,
sizeof(vdec_cfg_sps));
if (ret) {
pr_err("%s: copy_from_user failed\n", __func__);
return ret;
}
vi_cfg.decode_done_evt = VDEC_ASYNCMSG_DECODE_DONE;
vi_cfg.reuse_frame_evt = VDEC_ASYNCMSG_REUSE_FRAME;
memcpy(&vi_cfg.cfg, &vdec_cfg_sps.cfg, sizeof(struct vdec_config));
/*
* restricting the max value of the seq header
*/
if (vdec_cfg_sps.seq.len > VDEC_MAX_SEQ_HEADER_SIZE)
vdec_cfg_sps.seq.len = VDEC_MAX_SEQ_HEADER_SIZE;
header = kmalloc(vdec_cfg_sps.seq.len, GFP_KERNEL);
if (!header) {
pr_err("%s: kmalloc failed\n", __func__);
return -ENOMEM;
}
ret = copy_from_user(header,
((struct vdec_init *)argp)->sps_cfg.seq.header,
vdec_cfg_sps.seq.len);
if (ret) {
pr_err("%s: copy_from_user failed\n", __func__);
kfree(header);
return ret;
}
TRACE("vi_cfg: handle=%p fourcc=0x%x w=%d h=%d order=%d notify_en=%d "
"vc1_rb=%d h264_sd=%d h264_nls=%d pp_flag=%d fruc_en=%d\n",
vd->vdec_handle, vi_cfg.cfg.fourcc, vi_cfg.cfg.width,
vi_cfg.cfg.height, vi_cfg.cfg.order, vi_cfg.cfg.notify_enable,
vi_cfg.cfg.vc1_rowbase, vi_cfg.cfg.h264_startcode_detect,
vi_cfg.cfg.h264_nal_len_size, vi_cfg.cfg.postproc_flag,
vi_cfg.cfg.fruc_enable);
vd->streamDetails.height = vi_cfg.cfg.height;
vd->streamDetails.width = vi_cfg.cfg.width;
vd->streamDetails.fourcc = vi_cfg.cfg.fourcc;
if (FLAG_THUMBNAIL_MODE == vi_cfg.cfg.postproc_flag)
vd->streamDetails.isThisTnail = TRUE;
else
vd->streamDetails.isThisTnail = FALSE;
mutex_lock(&vdec_rm_lock);
ret = vdec_rm_checkWithRm(vd, vi_cfg.cfg.color_format);
mutex_unlock(&vdec_rm_lock);
if (ret)
return ret;
ret = dal_call_f13(vd->vdec_handle, VDEC_DALRPC_INITIALIZE,
&vi_cfg, sizeof(vi_cfg),
header, vdec_cfg_sps.seq.len,
&vdec_buf_req, sizeof(vdec_buf_req));
kfree(header);
if (ret)
pr_err("%s: remote function failed (%d)\n", __func__, ret);
else
ret = copy_to_user(((struct vdec_init *)argp)->buf_req,
&vdec_buf_req, sizeof(vdec_buf_req));
vd->close_decode = 0;
return ret;
}
static void vdec_rm_freeupResources(struct vdec_data *vdecInstance)
{
struct videoStreamDetails *streamDetails = &vdecInstance->streamDetails;
if ((streamDetails->isThisTnail) &&
(streamDetails->isTnailGranted)) {
totalTnailQ6load--;
pr_info("%s: Thumbnail released %d\n", __func__,
totalTnailQ6load);
} else if (streamDetails->Q6usage > 0) {
totalPlaybackQ6load -= streamDetails->Q6usage;
if (totalPlaybackQ6load < 0)
pr_err("Warning:Q6load cannot be negative\n");
pr_info("%s:Releasing [%d%%] of Q6load from a total of [%d%%]\n"
, __func__, streamDetails->Q6usage,
(streamDetails->Q6usage+totalPlaybackQ6load));
}
}
static int vdec_setbuffers(struct vdec_data *vd, void *argp)
{
struct vdec_buffer vmem;
struct vdec_mem_list *l;
unsigned long vstart;
unsigned long flags;
struct {
uint32_t size;
struct vdec_buf_info buf;
} rpc;
uint32_t res;
int ret = 0;
vd->mem_initialized = 0;
ret = copy_from_user(&vmem, argp, sizeof(vmem));
if (ret) {
pr_err("%s: copy_from_user failed\n", __func__);
return ret;
}
l = kzalloc(sizeof(struct vdec_mem_list), GFP_KERNEL);
if (!l) {
pr_err("%s: kzalloc failed!\n", __func__);
return -ENOMEM;
}
l->mem.id = vmem.pmem_id;
l->mem.buf_type = vmem.buf.buf_type;
ret = get_pmem_file(l->mem.id, &l->mem.phys_addr, &vstart,
&l->mem.len, &l->mem.file);
if (ret) {
pr_err("%s: get_pmem_fd failed\n", __func__);
goto err_get_pmem_file;
}
TRACE("pmem_id=%d (phys=0x%08lx len=0x%lx) buftype=%d num_buf=%d "
"islast=%d src_id=%d offset=0x%08x size=0x%x\n",
vmem.pmem_id, l->mem.phys_addr, l->mem.len,
vmem.buf.buf_type, vmem.buf.num_buf, vmem.buf.islast,
vmem.buf.region.src_id, vmem.buf.region.offset,
vmem.buf.region.size);
/* input buffers */
if ((vmem.buf.region.offset + vmem.buf.region.size) > l->mem.len) {
pr_err("%s: invalid input buffer offset!\n", __func__);
ret = -EINVAL;
goto err_bad_offset;
}
vmem.buf.region.offset += l->mem.phys_addr;
rpc.size = sizeof(vmem.buf);
memcpy(&rpc.buf, &vmem.buf, sizeof(struct vdec_buf_info));
ret = dal_call(vd->vdec_handle, VDEC_DALRPC_SETBUFFERS, 5,
&rpc, sizeof(rpc), &res, sizeof(res));
if (ret < 4) {
pr_err("%s: remote function failed (%d)\n", __func__, ret);
ret = -EIO;
goto err_dal_call;
}
spin_lock_irqsave(&vd->vdec_mem_list_lock, flags);
list_add(&l->list, &vd->vdec_mem_list_head);
spin_unlock_irqrestore(&vd->vdec_mem_list_lock, flags);
vd->mem_initialized = 1;
return ret;
err_dal_call:
err_bad_offset:
put_pmem_file(l->mem.file);
err_get_pmem_file:
kfree(l);
return ret;
}
static int vdec_queue(struct vdec_data *vd, void *argp)
{
struct {
uint32_t size;
struct vdec_input_buf_info buf_info;
uint32_t osize;
} rpc;
struct vdec_mem_list *l;
struct {
uint32_t result;
uint32_t size;
struct vdec_queue_status status;
} rpc_res;
u32 pmem_id;
int ret = 0;
if (!vd->mem_initialized) {
pr_err("%s: memory is not being initialized!\n", __func__);
return -EPERM;
}
ret = copy_from_user(&rpc.buf_info,
&((struct vdec_input_buf *)argp)->buffer,
sizeof(rpc.buf_info));
if (ret) {
pr_err("%s: copy_from_user failed\n", __func__);
return ret;
}
ret = copy_from_user(&pmem_id,
&((struct vdec_input_buf *)argp)->pmem_id,
sizeof(u32));
if (ret) {
pr_err("%s: copy_from_user failed\n", __func__);
return ret;
}
l = vdec_get_mem_from_list(vd, pmem_id, VDEC_BUFFER_TYPE_INPUT);
if (NULL == l) {
pr_err("%s: not able to find the buffer from list\n", __func__);
return -EPERM;
}
if ((rpc.buf_info.size + rpc.buf_info.offset) >= l->mem.len) {
pr_err("%s: invalid queue buffer offset!\n", __func__);
return -EINVAL;
}
rpc.buf_info.offset += l->mem.phys_addr;
rpc.size = sizeof(struct vdec_input_buf_info);
rpc.osize = sizeof(struct vdec_queue_status);
/* complete the writes to the buffer */
wmb();
ret = dal_call(vd->vdec_handle, VDEC_DALRPC_QUEUE, 8,
&rpc, sizeof(rpc), &rpc_res, sizeof(rpc_res));
if (ret < 4) {
pr_err("%s: remote function failed (%d)\n", __func__, ret);
ret = -EIO;
}
return ret;
}
static int vdec_reuse_framebuffer(struct vdec_data *vd, void *argp)
{
u32 buf_id;
int ret = 0;
ret = copy_from_user(&buf_id, argp, sizeof(buf_id));
if (ret) {
pr_err("%s: copy_from_user failed\n", __func__);
return ret;
}
ret = dal_call_f0(vd->vdec_handle, VDEC_DALRPC_REUSEFRAMEBUFFER,
buf_id);
if (ret)
pr_err("%s: remote function failed (%d)\n", __func__, ret);
return ret;
}
static int vdec_flush(struct vdec_data *vd, void *argp)
{
u32 flush_type;
int ret = 0;
if (!vd->mem_initialized) {
pr_err("%s: memory is not being initialized!\n", __func__);
return -EPERM;
}
ret = copy_from_user(&flush_type, argp, sizeof(flush_type));
if (ret) {
pr_err("%s: copy_from_user failed\n", __func__);
return ret;
}
TRACE("flush_type=%d\n", flush_type);
ret = dal_call_f0(vd->vdec_handle, VDEC_DALRPC_FLUSH, flush_type);
if (ret) {
pr_err("%s: remote function failed (%d)\n", __func__, ret);
return ret;
}
return ret;
}
static int vdec_close(struct vdec_data *vd, void *argp)
{
struct vdec_mem_list *l;
int ret = 0;
pr_info("q6vdec_close()\n");
vd->close_decode = 1;
wake_up(&vd->vdec_msg_evt);
ret = dal_call_f0(vd->vdec_handle, DAL_OP_CLOSE, 0);
if (ret)
pr_err("%s: failed to close daldevice (%d)\n", __func__, ret);
if (vd->mem_initialized) {
list_for_each_entry(l, &vd->vdec_mem_list_head, list)
put_pmem_file(l->mem.file);
}
return ret;
}
static int vdec_getdecattributes(struct vdec_data *vd, void *argp)
{
struct {
uint32_t status;
uint32_t size;
struct vdec_dec_attributes dec_attr;
} rpc;
uint32_t inp;
int ret = 0;
inp = sizeof(struct vdec_dec_attributes);
ret = dal_call(vd->vdec_handle, VDEC_DALRPC_GETDECATTRIBUTES, 9,
&inp, sizeof(inp), &rpc, sizeof(rpc));
if (ret < 4 || rpc.size != sizeof(struct vdec_dec_attributes)) {
pr_err("%s: remote function failed (%d)\n", __func__, ret);
ret = -EIO;
} else
ret =
copy_to_user(((struct vdec_dec_attributes *)argp),
&rpc.dec_attr, sizeof(rpc.dec_attr));
return ret;
}
static int vdec_freebuffers(struct vdec_data *vd, void *argp)
{
struct vdec_buffer vmem;
struct vdec_mem_list *l;
struct {
uint32_t size;
struct vdec_buf_info buf;
} rpc;
uint32_t res;
int ret = 0;
if (!vd->mem_initialized) {
pr_err("%s: memory is not being initialized!\n", __func__);
return -EPERM;
}
ret = copy_from_user(&vmem, argp, sizeof(vmem));
if (ret) {
pr_err("%s: copy_from_user failed\n", __func__);
return ret;
}
l = vdec_get_mem_from_list(vd, vmem.pmem_id, vmem.buf.buf_type);
if (NULL == l) {
pr_err("%s: not able to find the buffer from list\n", __func__);
return -EPERM;
}
/* input buffers */
if ((vmem.buf.region.offset + vmem.buf.region.size) > l->mem.len) {
pr_err("%s: invalid input buffer offset!\n", __func__);
return -EINVAL;
}
vmem.buf.region.offset += l->mem.phys_addr;
rpc.size = sizeof(vmem.buf);
memcpy(&rpc.buf, &vmem.buf, sizeof(struct vdec_buf_info));
ret = dal_call(vd->vdec_handle, VDEC_DALRPC_FREEBUFFERS, 5,
&rpc, sizeof(rpc), &res, sizeof(res));
if (ret < 4) {
pr_err("%s: remote function failed (%d)\n", __func__, ret);
}
return ret;
}
static int vdec_getversion(struct vdec_data *vd, void *argp)
{
struct vdec_version ver_info;
int ret = 0;
ver_info.major = VDEC_GET_MAJOR_VERSION(VDEC_INTERFACE_VERSION);
ver_info.minor = VDEC_GET_MINOR_VERSION(VDEC_INTERFACE_VERSION);
ret = copy_to_user(((struct vdec_version *)argp),
&ver_info, sizeof(ver_info));
return ret;
}
static long vdec_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
{
struct vdec_data *vd = file->private_data;
void __user *argp = (void __user *)arg;
int ret = 0;
if (!vd->running)
return -EPERM;
switch (cmd) {
case VDEC_IOCTL_INITIALIZE:
ret = vdec_initialize(vd, argp);
break;
case VDEC_IOCTL_SETBUFFERS:
ret = vdec_setbuffers(vd, argp);
break;
case VDEC_IOCTL_QUEUE:
TRACE("VDEC_IOCTL_QUEUE (pid=%d tid=%d)\n",
current->group_leader->pid, current->pid);
ret = vdec_queue(vd, argp);
break;
case VDEC_IOCTL_REUSEFRAMEBUFFER:
TRACE("VDEC_IOCTL_REUSEFRAMEBUFFER (pid=%d tid=%d)\n",
current->group_leader->pid, current->pid);
ret = vdec_reuse_framebuffer(vd, argp);
break;
case VDEC_IOCTL_FLUSH:
TRACE("IOCTL flush\n");
ret = vdec_flush(vd, argp);
break;
case VDEC_IOCTL_EOS:
TRACE("VDEC_IOCTL_EOS (pid=%d tid=%d)\n",
current->group_leader->pid, current->pid);
ret = dal_call_f0(vd->vdec_handle, VDEC_DALRPC_SIGEOFSTREAM, 0);
if (ret)
pr_err("%s: remote function failed (%d)\n",
__func__, ret);
break;
case VDEC_IOCTL_GETMSG:
TRACE("VDEC_IOCTL_GETMSG (pid=%d tid=%d)\n",
current->group_leader->pid, current->pid);
wait_event_interruptible(vd->vdec_msg_evt,
vdec_get_msg(vd, argp));
if (vd->close_decode)
ret = -EINTR;
else
/* order the reads from the buffer */
rmb();
break;
case VDEC_IOCTL_CLOSE:
ret = vdec_close(vd, argp);
break;
case VDEC_IOCTL_GETDECATTRIBUTES:
TRACE("VDEC_IOCTL_GETDECATTRIBUTES (pid=%d tid=%d)\n",
current->group_leader->pid, current->pid);
ret = vdec_getdecattributes(vd, argp);
if (ret)
pr_err("%s: remote function failed (%d)\n",
__func__, ret);
break;
case VDEC_IOCTL_FREEBUFFERS:
TRACE("VDEC_IOCTL_FREEBUFFERS (pid=%d tid=%d)\n",
current->group_leader->pid, current->pid);
ret = vdec_freebuffers(vd, argp);
if (ret)
pr_err("%s: remote function failed (%d)\n",
__func__, ret);
break;
case VDEC_IOCTL_GETVERSION:
TRACE("VDEC_IOCTL_GETVERSION (pid=%d tid=%d)\n",
current->group_leader->pid, current->pid);
ret = vdec_getversion(vd, argp);
if (ret)
pr_err("%s: remote function failed (%d)\n",
__func__, ret);
break;
case VDEC_IOCTL_GETPROPERTY:
TRACE("VDEC_IOCTL_GETPROPERTY (pid=%d tid=%d)\n",
current->group_leader->pid, current->pid);
ret = vdec_getproperty(vd, argp);
break;
case VDEC_IOCTL_SETPROPERTY:
TRACE("VDEC_IOCTL_SETPROPERTY (pid=%d tid=%d)\n",
current->group_leader->pid, current->pid);
ret = vdec_setproperty(vd, argp);
break;
case VDEC_IOCTL_PERFORMANCE_CHANGE_REQ:
ret = vdec_performance_change_request(vd, argp);
break;
default:
pr_err("%s: invalid ioctl!\n", __func__);
ret = -EINVAL;
break;
}
TRACE("ioctl done (pid=%d tid=%d)\n",
current->group_leader->pid, current->pid);
return ret;
}
static void vdec_dcdone_handler(struct vdec_data *vd, void *frame,
uint32_t frame_size)
{
struct vdec_msg msg;
struct vdec_mem_list *l;
unsigned long flags;
int found = 0;
if (frame_size < sizeof(struct vdec_frame_info)) {
pr_warning("%s: msg size mismatch %d != %d\n", __func__,
frame_size, sizeof(struct vdec_frame_info));
return;
}
memcpy(&msg.vfr_info, (struct vdec_frame_info *)frame,
sizeof(struct vdec_frame_info));
if (msg.vfr_info.status == VDEC_FRAME_DECODE_OK) {
spin_lock_irqsave(&vd->vdec_mem_list_lock, flags);
list_for_each_entry(l, &vd->vdec_mem_list_head, list) {
if ((l->mem.buf_type == VDEC_BUFFER_TYPE_OUTPUT) &&
(msg.vfr_info.offset >= l->mem.phys_addr) &&
(msg.vfr_info.offset <
(l->mem.phys_addr + l->mem.len))) {
found = 1;
msg.vfr_info.offset -= l->mem.phys_addr;
msg.vfr_info.data2 = l->mem.id;
break;
}
}
spin_unlock_irqrestore(&vd->vdec_mem_list_lock, flags);
}
if (found || (msg.vfr_info.status != VDEC_FRAME_DECODE_OK)) {
msg.id = VDEC_MSG_FRAMEDONE;
vdec_put_msg(vd, &msg);
} else {
pr_err("%s: invalid phys addr = 0x%x\n",
__func__, msg.vfr_info.offset);
}
}
static void vdec_reuseibuf_handler(struct vdec_data *vd, void *bufstat,
uint32_t bufstat_size)
{
struct vdec_buffer_status *vdec_bufstat;
struct vdec_msg msg;
/* TODO: how do we signal the client? If they are waiting on a
* message in an ioctl, they may block forever */
if (bufstat_size != sizeof(struct vdec_buffer_status)) {
pr_warning("%s: msg size mismatch %d != %d\n", __func__,
bufstat_size, sizeof(struct vdec_buffer_status));
return;
}
vdec_bufstat = (struct vdec_buffer_status *)bufstat;
msg.id = VDEC_MSG_REUSEINPUTBUFFER;
msg.buf_id = vdec_bufstat->data;
vdec_put_msg(vd, &msg);
}
static void callback(void *data, int len, void *cookie)
{
struct vdec_data *vd = (struct vdec_data *)cookie;
uint32_t *tmp = (uint32_t *) data;
if (!vd->mem_initialized) {
pr_err("%s:memory not initialize but callback called!\n",
__func__);
return;
}
TRACE("vdec_async: tmp=0x%08x 0x%08x 0x%08x\n", tmp[0], tmp[1], tmp[2]);
switch (tmp[0]) {
case VDEC_ASYNCMSG_DECODE_DONE:
vdec_dcdone_handler(vd, &tmp[3], tmp[2]);
break;
case VDEC_ASYNCMSG_REUSE_FRAME:
vdec_reuseibuf_handler(vd, &tmp[3], tmp[2]);
break;
default:
pr_err("%s: Unknown async message from DSP id=0x%08x sz=%u\n",
__func__, tmp[0], tmp[2]);
}
}
static int vdec_open(struct inode *inode, struct file *file)
{
int ret;
int i;
struct vdec_msg_list *l;
struct vdec_data *vd;
struct dal_info version_info;
char *portname = NULL;
pr_info("q6vdec_open()\n");
mutex_lock(&vdec_ref_lock);
if (ref_cnt >= MAX_SUPPORTED_INSTANCES) {
pr_err("%s: Max allowed instances exceeded \n", __func__);
mutex_unlock(&vdec_ref_lock);
return -EBUSY;
}
ref_cnt++;
mutex_unlock(&vdec_ref_lock);
vd = kmalloc(sizeof(struct vdec_data), GFP_KERNEL);
if (!vd) {
pr_err("%s: kmalloc failed\n", __func__);
ret = -ENOMEM;
goto vdec_open_err_handle_vd;
}
file->private_data = vd;
vd->mem_initialized = 0;
INIT_LIST_HEAD(&vd->vdec_msg_list_head);
INIT_LIST_HEAD(&vd->vdec_msg_list_free);
INIT_LIST_HEAD(&vd->vdec_mem_list_head);
init_waitqueue_head(&vd->vdec_msg_evt);
spin_lock_init(&vd->vdec_list_lock);
spin_lock_init(&vd->vdec_mem_list_lock);
for (i = 0; i < VDEC_MSG_MAX; i++) {
l = kzalloc(sizeof(struct vdec_msg_list), GFP_KERNEL);
if (!l) {
pr_err("%s: kzalloc failed!\n", __func__);
ret = -ENOMEM;
goto vdec_open_err_handle_list;
}
list_add(&l->list, &vd->vdec_msg_list_free);
}
memset(&vd->streamDetails, 0, sizeof(struct videoStreamDetails));
mutex_lock(&vdec_ref_lock);
vdec_get_next_portanddevid(&vd->Q6deviceId, &portname);
mutex_unlock(&vdec_ref_lock);
if ((0 == vd->Q6deviceId) || (NULL == portname)) {
pr_err("%s: FATAL error portname %s or deviceId %d not picked properly\n",
__func__, portname, vd->Q6deviceId);
ret = -EIO;
goto vdec_open_err_handle_list;
} else {
pr_err("attaching on deviceid %x portname %s\n",
vd->Q6deviceId, portname);
vd->vdec_handle = dal_attach(vd->Q6deviceId,
portname, 1, callback, vd);
}
if (!vd->vdec_handle) {
pr_err("%s: failed to attach\n", __func__);
ret = -EIO;
goto vdec_open_err_handle_list;
}
ret = dal_call_f9(vd->vdec_handle, DAL_OP_INFO,
&version_info, sizeof(struct dal_info));
if (ret) {
pr_err("%s: failed to get version \n", __func__);
goto vdec_open_err_handle_version;
}
TRACE("q6vdec_open() interface version 0x%x\n", version_info.version);
if (vdec_check_version(VDEC_INTERFACE_VERSION,
version_info.version)) {
pr_err("%s: driver version mismatch !\n", __func__);
goto vdec_open_err_handle_version;
}
vd->running = 1;
prevent_sleep();
return 0;
vdec_open_err_handle_version:
dal_detach(vd->vdec_handle);
vdec_open_err_handle_list:
{
struct vdec_msg_list *l, *n;
list_for_each_entry_safe(l, n, &vd->vdec_msg_list_free, list) {
list_del(&l->list);
kfree(l);
}
}
vdec_open_err_handle_vd:
mutex_lock(&vdec_ref_lock);
vdec_freeup_portanddevid(vd->Q6deviceId);
ref_cnt--;
mutex_unlock(&vdec_ref_lock);
kfree(vd);
return ret;
}
static int vdec_release(struct inode *inode, struct file *file)
{
int ret;
struct vdec_msg_list *l, *n;
struct vdec_mem_list *m, *k;
struct vdec_data *vd = file->private_data;
vd->running = 0;
wake_up_all(&vd->vdec_msg_evt);
if (!vd->close_decode)
vdec_close(vd, NULL);
ret = dal_detach(vd->vdec_handle);
if (ret)
printk(KERN_INFO "%s: failed to detach (%d)\n", __func__, ret);
list_for_each_entry_safe(l, n, &vd->vdec_msg_list_free, list) {
list_del(&l->list);
kfree(l);
}
list_for_each_entry_safe(l, n, &vd->vdec_msg_list_head, list) {
list_del(&l->list);
kfree(l);
}
list_for_each_entry_safe(m, k, &vd->vdec_mem_list_head, list) {
list_del(&m->list);
kfree(m);
}
mutex_lock(&vdec_ref_lock);
BUG_ON(ref_cnt <= 0);
ref_cnt--;
vdec_freeup_portanddevid(vd->Q6deviceId);
mutex_unlock(&vdec_ref_lock);
mutex_lock(&vdec_rm_lock);
vdec_rm_freeupResources(vd);
mutex_unlock(&vdec_rm_lock);
kfree(vd);
allow_sleep();
return 0;
}
static const struct file_operations vdec_fops = {
.owner = THIS_MODULE,
.open = vdec_open,
.release = vdec_release,
.unlocked_ioctl = vdec_ioctl,
};
static int __init vdec_init(void)
{
struct device *class_dev;
int rc = 0;
pm_qos_add_request(&pm_qos_req, PM_QOS_CPU_DMA_LATENCY,
PM_QOS_DEFAULT_VALUE);
wake_lock_init(&wakelock, WAKE_LOCK_SUSPEND, "vdec_suspend");
rc = alloc_chrdev_region(&vdec_device_no, 0, 1, "vdec");
if (rc < 0) {
pr_err("%s: alloc_chrdev_region failed %d\n", __func__, rc);
return rc;
}
driver_class = class_create(THIS_MODULE, "vdec");
if (IS_ERR(driver_class)) {
rc = -ENOMEM;
pr_err("%s: class_create failed %d\n", __func__, rc);
goto vdec_init_err_unregister_chrdev_region;
}
class_dev = device_create(driver_class, NULL,
vdec_device_no, NULL, "vdec");
if (!class_dev) {
pr_err("%s: class_device_create failed %d\n", __func__, rc);
rc = -ENOMEM;
goto vdec_init_err_class_destroy;
}
cdev_init(&vdec_cdev, &vdec_fops);
vdec_cdev.owner = THIS_MODULE;
rc = cdev_add(&vdec_cdev, MKDEV(MAJOR(vdec_device_no), 0), 1);
if (rc < 0) {
pr_err("%s: cdev_add failed %d\n", __func__, rc);
goto vdec_init_err_class_device_destroy;
}
memset(&deviceIdRegistry, 0, sizeof(deviceIdRegistry));
memset(&loadOnPorts, 0, sizeof(loadOnPorts));
numOfPorts = 0;
return 0;
vdec_init_err_class_device_destroy:
device_destroy(driver_class, vdec_device_no);
vdec_init_err_class_destroy:
class_destroy(driver_class);
vdec_init_err_unregister_chrdev_region:
unregister_chrdev_region(vdec_device_no, 1);
return rc;
}
static void __exit vdec_exit(void)
{
device_destroy(driver_class, vdec_device_no);
class_destroy(driver_class);
unregister_chrdev_region(vdec_device_no, 1);
}
MODULE_DESCRIPTION("video decoder driver for QSD platform");
MODULE_VERSION("2.00");
module_init(vdec_init);
module_exit(vdec_exit);
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