static int config_dma(void)
{
u32 i = 0;
pr_debug("%s\n", __func__);
/* fill descriptor table */
for (i = 0; i < 326; i++) {
/* point to next desc table */
dma_desc_table[2 * i] =
(unsigned long)&dma_desc_table[2 * i + 2];
}
/* last descriptor points to first */
dma_desc_table[2 * 326] = (unsigned long)&dma_desc_table[0];
#ifdef CONFIG_FB_HITACHI_TX09_LANDSCAPE
dma_desc_table[0 + 1] = (unsigned long)fb_buffer;
for (i = 0; i < 7; i++) {
/* blanking lines point to first line of fb_buffer */
dma_desc_table[2 * i + 1] = (unsigned long)fb_buffer + 319 * 2;
}
for (i = 7; i < 327; i++) {
/* visible lines */
dma_desc_table[2 * i + 1] =
(unsigned long)fb_buffer + (319 - (i - 7)) * 2;
}
#else /* portrait mode */
for (i = 0; i < 7; i++) {
/* blanking lines point to first line of fb_buffer */
dma_desc_table[2 * i + 1] = (unsigned long)fb_buffer;
}
for (i = 7; i < 327; i++) {
/* visible lines */
dma_desc_table[2 * i + 1] =
(unsigned long)fb_buffer + 2 * 240 * (i - 7);
}
#endif
#ifdef CONFIG_FB_HITACHI_TX09_LANDSCAPE
set_dma_x_count(CH_PPI, 240);
set_dma_x_modify(CH_PPI, 2 * 320);
set_dma_y_count(CH_PPI, 0);
set_dma_y_modify(CH_PPI, 0);
set_dma_next_desc_addr(CH_PPI, (unsigned long)dma_desc_table[2 * 326]);
#else
set_dma_x_count(CH_PPI, 240);
set_dma_x_modify(CH_PPI, 2);
set_dma_y_count(CH_PPI, 0);
set_dma_y_modify(CH_PPI, 0);
set_dma_next_desc_addr(CH_PPI, (unsigned long)dma_desc_table[2 * 326]);
#endif
set_dma_config(CH_PPI, 0x7404);
return 0;
}
void sport_rx_start(struct sport_device *sport)
{
set_dma_next_desc_addr(sport->rx_dma_chan, sport->rx_desc);
set_dma_config(sport->rx_dma_chan, DMAFLOW_LIST | DI_EN | WNR
| compute_wdsize(sport->wdsize) | NDSIZE_6);
enable_dma(sport->rx_dma_chan);
sport->rx_regs->spctl |= SPORT_CTL_SPENPRI;
SSYNC();
}
static int config_dma(void)
{
u32 i;
if(landscape) {
for (i=0;i<U_LINES;i++)
{
//blanking lines point to first line of fb_buffer
dma_desc_table[2*i] = (unsigned long)&dma_desc_table[2*i+2];
dma_desc_table[2*i+1] = (unsigned long)fb_buffer;
}
for (i=U_LINES;i<U_LINES+LCD_Y_RES;i++)
{
// visible lines
dma_desc_table[2*i] = (unsigned long)&dma_desc_table[2*i+2];
dma_desc_table[2*i+1] = (unsigned long)fb_buffer + (LCD_Y_RES+U_LINES-1-i)*2;
}
//last descriptor points to first
dma_desc_table[2*(LCD_Y_RES+U_LINES-1)] = (unsigned long)&dma_desc_table[0];
set_dma_x_count(CH_PPI, LCD_X_RES);
set_dma_x_modify(CH_PPI, LCD_Y_RES*(LCD_BBP/8));
set_dma_y_count(CH_PPI, 0);
set_dma_y_modify(CH_PPI, 0);
set_dma_next_desc_addr(CH_PPI, (void *)dma_desc_table[0]);
set_dma_config(CH_PPI, DMAFLOW_LARGE | NDSIZE_4 | WDSIZE_16);
} else {
set_dma_config(CH_PPI, set_bfin_dma_config(DIR_READ,
DMA_FLOW_AUTO,
INTR_DISABLE,
DIMENSION_2D,
DATA_SIZE_16,
DMA_NOSYNC_KEEP_DMA_BUF));
set_dma_x_count(CH_PPI, LCD_X_RES);
set_dma_x_modify(CH_PPI,LCD_BBP/8);
set_dma_y_count(CH_PPI, LCD_Y_RES+U_LINES);
set_dma_y_modify(CH_PPI, LCD_BBP/8);
set_dma_start_addr(CH_PPI, ((unsigned long) fb_buffer));
}
return 0;
}
