void _g2d_command_handler(g2d_command_t *cmd)
{
G2D_DBG("start to handle command (0x%04x)\n", cmd->ctx.flag);
switch (cmd->ctx.flag)
{
case G2D_FLAG_END_OF_FRAME:
g2d_drv_fb_queue_buffer(cmd->ctx.fb_id);
break;
case G2D_FLAG_FLUSH:
break;
case G2D_FLAG_MIRROR_FRONT_FB:
if (g2d_drv_fb_fill_mirror_cmd(&cmd->ctx) != 0) break;
default:
{
#ifdef G2D_PROFILE
struct timeval t1, t2;
do_gettimeofday(&t1);
#endif
g2d_drv_power_on();
g2d_drv_run(&cmd->ctx);
while (g2d_drv_get_status())
{
wait_event_interruptible_timeout(isr_wait_queue, !g2d_drv_get_status(), (30 * HZ / 1000));
if (g2d_drv_get_status()) G2D_ERR("TIMEOUT: G2D is still busy");
}
#ifdef G2D_PROFILE
do_gettimeofday(&t2);
G2D_INF("process time (%u)\n", (t2.tv_sec - t1.tv_sec) * 1000000 + (t2.tv_usec - t1.tv_usec));
#endif
#ifdef G2D_DEBUG
_g2d_reg_dump();
#endif
g2d_drv_reset();
g2d_drv_power_off();
}
break;
}
G2D_DBG("handle command (0x%04x) W2M(0x%08x) L0(0x%08x) L1(0x%08x) L2(0x%08x) L3(0x%08x) done\n", cmd->ctx.flag, ioread32(0xF20C5044), ioread32(0xF20C5084), ioread32(0xF20C50C4), ioread32(0xF20C5104), ioread32(0xF20C5144));
memset(&cmd->ctx, 0, sizeof(g2d_context_t));
#ifdef G2D_QUEUE
if (cmd->sync_cmd)
{
cmd->sync_cmd = false;
up(&cmd->sync);
}
up(&cmd->lock);
#endif
}
void _g2d_command_handler(g2d_command_t *cmd)
{
G2D_DBG("start to handle command\n");
#ifdef G2D_QUEUE
if (cmd->ctx.end_of_frame)
{
g2d_drv_fb_queue_buffer(cmd->ctx.fb_id);
up(&cmd->lock);
return;
}
#endif
g2d_drv_power_on();
g2d_drv_run(&cmd->ctx);
wait_event_interruptible(isr_wait_queue, !g2d_drv_get_status());
#ifdef G2D_DEBUG
_g2d_reg_dump();
#endif
g2d_drv_power_off();
G2D_DBG("handle command done\n");
#ifdef G2D_QUEUE
up(&cmd->lock);
#endif
}
int g2d_allocate_mva(unsigned int va, unsigned int *mva, unsigned int size)
{
int err = 0;
if (!_m4u_g2d_func.isInit)
{
G2D_ERR("m4u is not initialized\n");
return -1;
}
G2D_DBG("try to allocate mva with 0x%x (%d)\n", va, size);
err = _m4u_g2d_func.m4u_alloc_mva(M4U_CLNTMOD_G2D, va, size, mva);
if (err != 0)
{
G2D_ERR("failed to allocate mva\n");
return -1;
}
err = _m4u_g2d_func.m4u_insert_tlb_range(M4U_CLNTMOD_G2D, *mva, *mva + size - 1, RT_RANGE_HIGH_PRIORITY, 1);
if (err != 0)
{
G2D_ERR("failed to insert m4u tlb\n");
_m4u_g2d_func.m4u_dealloc_mva(M4U_CLNTMOD_G2D, va, size, *mva);
return -1;
}
return 0;
}
void g2d_drv_run(g2d_context_t *g2d_ctx)
{
#ifdef G2D_PROFILE
struct timeval t1, t2;
do_gettimeofday(&t1);
#endif
HARD_RESET_G2D_ENGINE;
REG_G2D_MODE_CON = 0;
REG_G2D_ROI_CON = 0;
REG_G2D_SLOW_DOWN = 0x00400000;
REG_G2D_IRQ |= G2D_IRQ_ENABLE_BIT;
_g2d_drv_set_dst_info(g2d_ctx);
if (g2d_ctx->flag & G2D_FLAG_MIRROR_FRONT_FB)
_g2d_drv_set_mirror_fb(g2d_ctx);
else if (g2d_ctx->flag & G2D_FLAG_AFFINE_TRANSFORM)
_g2d_drv_set_affine_info(g2d_ctx);
else
_g2d_drv_set_bitblt_info(g2d_ctx);
_g2d_drv_set_roi_info(g2d_ctx);
#ifdef G2D_PROFILE
do_gettimeofday(&t2);
G2D_DBG("register config time (%u)\n", (t2.tv_sec - t1.tv_sec) * 1000000 + (t2.tv_usec - t1.tv_usec));
#endif
START_G2D_ENGINE;
}
int g2d_deallocate_mva(unsigned int va, unsigned int mva, unsigned int size)
{
G2D_DBG("try to deallocate mva with 0x%x (%d)\n", va, size);
m4u_invalid_tlb_range(M4U_CLNTMOD_G2D, mva, mva + size - 1);
m4u_dealloc_mva(M4U_CLNTMOD_G2D, va, size, mva);
return 0;
}
static irqreturn_t g2d_drv_isr(int irq, void *dev_id)
{
for(;;)
{
if (!g2d_drv_get_status()) break;
G2D_DBG("handle interrupt, status : %d\n", g2d_drv_get_status());
}
wake_up_interruptible(&isr_wait_queue);
return IRQ_HANDLED;
}
int g2d_deallocate_mva(unsigned int va, unsigned int mva, unsigned int size)
{
if (!_m4u_g2d_func.isInit)
{
G2D_ERR("m4u is not initialized\n");
return -1;
}
G2D_DBG("try to deallocate mva with 0x%x (%d)\n", va, size);
_m4u_g2d_func.m4u_invalid_tlb_range(M4U_CLNTMOD_G2D, mva, mva + size - 1);
_m4u_g2d_func.m4u_dealloc_mva(M4U_CLNTMOD_G2D, va, size, mva);
return 0;
}
void g2d_drv_run(g2d_context_t *g2d_ctx)
{
#ifdef G2D_PROFILE
struct timeval t1, t2;
do_gettimeofday(&t1);
#endif
HARD_RESET_G2D_ENGINE;
REG_G2D_MODE_CON = 0;
REG_G2D_ROI_CON = 0;
REG_G2D_SLOW_DOWN = 0x00400000;
REG_G2D_IRQ |= G2D_IRQ_ENABLE_BIT;
_g2d_drv_set_dst_info(g2d_ctx);
if (g2d_ctx->flag & G2D_FLAG_MIRROR_FRONT_FB)
_g2d_drv_set_mirror_fb(g2d_ctx);
else if (g2d_ctx->flag & G2D_FLAG_AFFINE_TRANSFORM)
_g2d_drv_set_affine_info(g2d_ctx);
else
_g2d_drv_set_bitblt_info(g2d_ctx);
_g2d_drv_set_roi_info(g2d_ctx);
#ifdef G2D_PROFILE
do_gettimeofday(&t2);
G2D_DBG("register config time (%u)\n", (t2.tv_sec - t1.tv_sec) * 1000000 + (t2.tv_usec - t1.tv_usec));
#endif
if (g2d_ctx->cache_clean)
{
#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,27))
on_each_cpu(per_cpu_cache_flush, NULL, 1);
#else
on_each_cpu(per_cpu_cache_flush, NULL, 0, 1);
#endif
#ifdef CONFIG_OUTER_CACHE
outer_clean_all();
#endif
}
START_G2D_ENGINE;
}
static int g2d_release(struct inode *inode, struct file *file)
{
G2D_DBG("G2D Driver release\n");
return 0;
}
static ssize_t g2d_read(struct file *file, char __user *data, size_t len, loff_t *ppos)
{
G2D_DBG("driver read\n");
return 0;
}
static int g2d_open(struct inode *inode, struct file *file)
{
G2D_DBG("driver open\n");
return 0;
}
static long g2d_unlocked_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
{
int ret = 0;
switch (cmd)
{
#ifdef G2D_QUEUE
case G2D_IOCTL_ASYNCCMD:
ret = _g2d_queue_command(arg, false);
G2D_DBG("insert async command successfully\n");
break;
case G2D_IOCTL_SYNCCMD:
ret = _g2d_queue_command(arg, true);
G2D_DBG("insert sync command successfully\n");
break;
#else
case G2D_IOCTL_SYNCCMD:
spin_lock(&g2d_cmd_spinlock);
if (copy_from_user(&g2d_cmd_buffer->ctx, (void *)arg, sizeof(g2d_context_t)))
{
G2D_ERR("copy from user is failed\n");
return -EFAULT;
}
_g2d_command_handler(g2d_cmd_buffer);
spin_unlock(&g2d_cmd_spinlock);
break;
#endif
case G2D_IOCTL_CONNECTFB:
if (g2d_drv_fb_init() != 0)
{
G2D_ERR("failed to connect fb driver\n");
return -EFAULT;
}
break;
case G2D_IOCTL_DISCONNECTFB:
g2d_drv_fb_deinit();
break;
case G2D_IOCTL_DEQUEUEFB:
{
fb_buffer_t *buffer = g2d_drv_fb_dequeue_buffer();
if (buffer == NULL)
{
G2D_ERR("failed to get framebuffer\n");
return -EFAULT;
}
if (copy_to_user((void *)arg, &buffer->info, sizeof(g2d_buffer_t)))
{
G2D_ERR("copy to user is failed\n");
return -EFAULT;
}
}
break;
case G2D_IOCTL_ENQUEUEFB:
#ifdef G2D_QUEUE
{
g2d_context_t ctx;
memset(&ctx, 0, sizeof(g2d_context_t));
ctx.flag = G2D_FLAG_END_OF_FRAME;
if (copy_from_user(&ctx.fb_id, (void *)arg, sizeof(int)))
{
G2D_ERR("copy from user is failed\n");
return -EFAULT;
}
_g2d_queue_command2(&ctx, false);
}
#else
{
spin_lock(&g2d_cmd_spinlock);
g2d_cmd_buffer->ctx.flag = G2D_FLAG_END_OF_FRAME;
if (copy_from_user(&g2d_cmd_buffer->ctx.fb_id, (void *)arg, sizeof(int)))
{
G2D_ERR("copy from user is failed\n");
return -EFAULT;
}
_g2d_command_handler(g2d_cmd_buffer);
spin_unlock(&g2d_cmd_spinlock);
}
#endif
break;
}
return ret;
}