void __isph3a_aewb_enable(struct isp_h3a_device *isp_h3a, u8 enable)
{
if (enable) {
isp_h3a->regs.pcr |= ISPH3A_PCR_AEW_EN;
DPRINTK_ISPH3A(" H3A enabled \n");
} else {
isp_h3a->regs.pcr &= ~ISPH3A_PCR_AEW_EN;
DPRINTK_ISPH3A(" H3A disabled \n");
}
isp_h3a->update = 1;
isp_h3a->aewb_config_local.aewb_enable = enable;
isph3a_aewb_update_regs(isp_h3a);
}
/**
* isph3a_save_context - Saves the values of the h3a module registers.
**/
void isph3a_save_context(struct device *dev)
{
DPRINTK_ISPH3A(" Saving context\n");
isp_save_context(dev, isph3a_reg_list);
/* Avoid enable during restore ctx */
isph3a_reg_list[0].val &= ~(ISPH3A_PCR_AEW_EN | ISPH3A_PCR_AF_EN);
}
/**
* isph3a_aewb_request_statistics - REquest statistics and update gains in AEWB
* @aewbdata: Pointer to return AE AWB statistics data.
*
* This API allows the user to update White Balance gains, as well as
* exposure time and analog gain. It is also used to request frame
* statistics.
*
* Returns 0 if successful, -EINVAL when H3A engine is not enabled, or other
* errors when setting gains.
**/
int isph3a_aewb_request_statistics(struct isp_h3a_device *isp_h3a,
struct isph3a_aewb_data *aewbdata)
{
struct device *dev = to_device(isp_h3a);
unsigned long irqflags;
int ret = 0;
if (!isp_h3a->aewb_config_local.aewb_enable) {
dev_dbg(dev, "h3a: engine not enabled\n");
return -EINVAL;
}
DPRINTK_ISPH3A("isph3a_aewb_request_statistics: Enter "
"(frame req. => %d, current frame => %d,"
"update => %d)\n",
aewbdata->frame_number, isp_h3a->stat.frame_number,
aewbdata->update);
DPRINTK_ISPH3A("User data received: \n");
DPRINTK_ISPH3A("Digital gain = 0x%04x\n", aewbdata->dgain);
DPRINTK_ISPH3A("WB gain b *= 0x%04x\n", aewbdata->wb_gain_b);
DPRINTK_ISPH3A("WB gain r *= 0x%04x\n", aewbdata->wb_gain_r);
DPRINTK_ISPH3A("WB gain gb = 0x%04x\n", aewbdata->wb_gain_gb);
DPRINTK_ISPH3A("WB gain gr = 0x%04x\n", aewbdata->wb_gain_gr);
spin_lock_irqsave(isp_h3a->lock, irqflags);
if (aewbdata->update & SET_DIGITAL_GAIN)
isp_h3a->h3awb_update.dgain = (u16)aewbdata->dgain;
if (aewbdata->update & SET_COLOR_GAINS) {
isp_h3a->h3awb_update.coef0 = (u8)aewbdata->wb_gain_r;
isp_h3a->h3awb_update.coef1 = (u8)aewbdata->wb_gain_gr;
isp_h3a->h3awb_update.coef2 = (u8)aewbdata->wb_gain_gb;
isp_h3a->h3awb_update.coef3 = (u8)aewbdata->wb_gain_b;
}
if (aewbdata->update & (SET_COLOR_GAINS | SET_DIGITAL_GAIN))
isp_h3a->wb_update = 1;
spin_unlock_irqrestore(isp_h3a->lock, irqflags);
if (aewbdata->update & REQUEST_STATISTICS)
ret = isph3a_aewb_get_stats(isp_h3a, aewbdata);
aewbdata->curr_frame = isp_h3a->stat.frame_number;
DPRINTK_ISPH3A("isph3a_aewb_request_statistics: "
"aewbdata->h3a_aewb_statistics_buf => %p\n",
aewbdata->h3a_aewb_statistics_buf);
return ret;
}
/**
* isph3a_print_status - Debug print. Values of H3A related registers.
**/
static void isph3a_print_status(struct isp_h3a_device *isp_h3a)
{
DPRINTK_ISPH3A("ISPH3A_PCR = 0x%08x\n",
isp_reg_readl(isp_h3a->dev, OMAP3_ISP_IOMEM_H3A,
ISPH3A_PCR));
DPRINTK_ISPH3A("ISPH3A_AEWWIN1 = 0x%08x\n",
isp_reg_readl(isp_h3a->dev, OMAP3_ISP_IOMEM_H3A,
ISPH3A_AEWWIN1));
DPRINTK_ISPH3A("ISPH3A_AEWINSTART = 0x%08x\n",
isp_reg_readl(isp_h3a->dev, OMAP3_ISP_IOMEM_H3A,
ISPH3A_AEWINSTART));
DPRINTK_ISPH3A("ISPH3A_AEWINBLK = 0x%08x\n",
isp_reg_readl(isp_h3a->dev, OMAP3_ISP_IOMEM_H3A,
ISPH3A_AEWINBLK));
DPRINTK_ISPH3A("ISPH3A_AEWSUBWIN = 0x%08x\n",
isp_reg_readl(isp_h3a->dev, OMAP3_ISP_IOMEM_H3A,
ISPH3A_AEWSUBWIN));
DPRINTK_ISPH3A("ISPH3A_AEWBUFST = 0x%08x\n",
isp_reg_readl(isp_h3a->dev, OMAP3_ISP_IOMEM_H3A,
ISPH3A_AEWBUFST));
DPRINTK_ISPH3A("stats windows = %d\n", isp_h3a->win_count);
DPRINTK_ISPH3A("stats buf size = %d\n", isp_h3a->stat.buf_size);
}
/**
* isph3a_restore_context - Restores the values of the h3a module registers.
**/
void isph3a_restore_context(struct device *dev)
{
DPRINTK_ISPH3A(" Restoring context\n");
isp_restore_context(dev, isph3a_reg_list);
}
