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#include <linux/config.h>

#define acornfb_valid_pixrate(rate) (rate >= 39325 && rate <= 40119)

static inline void

acornfb_vidc20_find_rates(struct vidc_timing *vidc,

                          struct fb_var_screeninfo *var)

{

        u_int bandwidth;

        vidc->control |= VIDC20_CTRL_PIX_CK;

        /* Calculate bandwidth */

        bandwidth = var->pixclock * 8 / var->bits_per_pixel;

        /* Encode bandwidth as VIDC20 setting */

        if (bandwidth > 16667*2)

                vidc->control |= VIDC20_CTRL_FIFO_16;

        else if (bandwidth > 13333*2)

                vidc->control |= VIDC20_CTRL_FIFO_20;

        else if (bandwidth > 11111*2)

                vidc->control |= VIDC20_CTRL_FIFO_24;

        else

                vidc->control |= VIDC20_CTRL_FIFO_28;

        vidc->pll_ctl  = 0x2020;

}

#ifdef CONFIG_CHRONTEL_7003

#define acornfb_default_control()       VIDC20_CTRL_PIX_HCLK

#else

#define acornfb_default_control()       VIDC20_CTRL_PIX_VCLK

#endif

#define acornfb_default_econtrol()      VIDC20_ECTL_DAC | VIDC20_ECTL_REG(3) | VIDC20_ECTL_ECK