/* LCD Output: 1 Descriptor -> 1 Framebuffer. */
static int lcd_output_desc_attach(struct jz_fb_win_info *win, void *mem)
{
/* Get new descriptor. */
struct jz_fb_dma_desc *desc = dma_desc_get(win);
struct jz_fb_win_attr_info *a = &win->attr;
D("Called.");
if (!desc) {
return -ENOMEM;
}
dma_desc_init(desc);
/* Attach framebuffer to desciptors. */
dma_desc_set_mem(desc, mem);
dma_desc_set_data_size(desc, win->fb_frame_len);
dma_desc_set_area_size(desc, a->w, a->h);
dma_desc_add_to_chain(desc);
dump_desc(desc);
return 0;
}
static int lcd_output_desc_setup(struct jz_fb_win_info *win)
{
struct jz_fb_panel_config *c = win->ctrl->ot->config;
struct jz_fb_dma_desc *desc;
D("Called.");
/* Setup DMA Palette Descriptor. */
if (c->use_palette && win->index == 0) { /* Palette cannot be used on FG1. */
unsigned long palette_size =
jz_fb_hw_bpp_to_palette_size(win->attr.bpp);
D("Use Palette.");
desc = dma_desc_get(win);
if (!desc) {
return -ENOMEM;
}
dma_desc_init(desc);
dma_desc_set_mem(desc, win->dma_palette);
dma_desc_set_data_size(desc, palette_size);
dma_desc_set_as_palette(desc);
/* Set as DMA Descriptor Chain Head. */
dma_desc_set_chain_head(desc);
win->dma_desc_last_no_data = desc;
}
return 0;
}
static void reset_endpoints(int init)
{
int i;
/*
* OUT EP 2 is an alias for OUT EP 0 on this HW!
*
* Resonates with "3 bidirectional- plus 1 in-endpoints in device mode"
* from the datasheet, but why ep2 and not ep3?
*
* Reserve it here so we will skip over it in request_endpoint().
*/
endpoints[2][1].state |= EP_STATE_ALLOCATED;
for(i = 0; i < USB_NUM_EPS; i++) {
/*
* MPS sizes depending on speed:
* LS: 8 (control), no bulk available
* FS: 64 (control), 64 (bulk)
* HS: 64 (control), 512 (bulk)
*
* We don't need to handle LS since there is no low-speed only
* host AFAIK.
*/
int mps = i == 0 ? 64 : (usb_drv_port_speed() ? 512 : 64);
if (init) {
if (endpoints[i][0].state & EP_STATE_BUSY) {
if (endpoints[i][0].state & EP_STATE_ASYNC) {
endpoints[i][0].rc = -1;
semaphore_release(&endpoints[i][0].complete);
} else {
usb_core_transfer_complete(i, USB_DIR_IN, -1, 0);
}
}
endpoints[i][0].state = 0;
semaphore_wait(&endpoints[i][0].complete, TIMEOUT_NOBLOCK);
if (i != 2) { /* Skip the OUT EP0 alias */
if (endpoints[i][1].state & EP_STATE_BUSY)
usb_core_transfer_complete(i, USB_DIR_OUT, -1, 0);
endpoints[i][1].state = 0;
semaphore_wait(&endpoints[i][1].complete, TIMEOUT_NOBLOCK);
USB_OEP_SUP_PTR(i) = 0;
}
}
dma_desc_init(i, 0);
USB_IEP_CTRL (i) = USB_EP_CTRL_FLUSH|USB_EP_CTRL_SNAK;
USB_IEP_MPS (i) = mps; /* in bytes */
/* We don't care about the 'IN token received' event */
USB_IEP_STS_MASK(i) = USB_EP_STAT_IN; /* OF: 0x840 */
USB_IEP_TXFSIZE (i) = mps/2; /* in dwords => mps*2 bytes */
USB_IEP_STS (i) = 0xffffffff; /* clear status */
USB_IEP_DESC_PTR(i) = 0;
if (i != 2) { /* Skip the OUT EP0 alias */
dma_desc_init(i, 1);
USB_OEP_CTRL (i) = USB_EP_CTRL_FLUSH|USB_EP_CTRL_SNAK;
USB_OEP_MPS (i) = (mps/2 << 16) | mps;
USB_OEP_STS_MASK(i) = USB_EP_STAT_BNA; /* OF: 0x1800 */
USB_OEP_RXFR (i) = 0; /* Always 0 in OF trace? */
USB_OEP_STS (i) = 0xffffffff; /* clear status */
USB_OEP_DESC_PTR(i) = 0;
}
}
setup_desc_init(setup_desc);
USB_OEP_SUP_PTR(0) = AS3525_PHYSICAL_ADDR((int)setup_desc);
}
