4  * TI OMAP3 ISP - Histogram module
24 #include "isp.h"
35 	struct isp_device *isp = hist->isp;  in hist_reset_mem()  local
39 	isp_reg_writel(isp, 0, OMAP3_ISP_IOMEM_HIST, ISPHIST_ADDR);  in hist_reset_mem()
45 	isp_reg_set(isp, OMAP3_ISP_IOMEM_HIST, ISPHIST_CNT, ISPHIST_CNT_CLEAR);  in hist_reset_mem()
52 		isp_reg_readl(isp, OMAP3_ISP_IOMEM_HIST, ISPHIST_DATA);  in hist_reset_mem()
53 		isp_reg_readl(isp, OMAP3_ISP_IOMEM_HIST, ISPHIST_DATA);  in hist_reset_mem()
54 		isp_reg_readl(isp, OMAP3_ISP_IOMEM_HIST, ISPHIST_DATA);  in hist_reset_mem()
55 		isp_reg_readl(isp, OMAP3_ISP_IOMEM_HIST, ISPHIST_DATA);  in hist_reset_mem()
57 	isp_reg_clr(isp, OMAP3_ISP_IOMEM_HIST, ISPHIST_CNT, ISPHIST_CNT_CLEAR);  in hist_reset_mem()
67 	struct isp_device *isp = hist->isp;  in hist_setup_regs()  local
126 	isp_reg_writel(isp, cnt, OMAP3_ISP_IOMEM_HIST, ISPHIST_CNT);  in hist_setup_regs()
127 	isp_reg_writel(isp, wb_gain,  OMAP3_ISP_IOMEM_HIST, ISPHIST_WB_GAIN);  in hist_setup_regs()
128 	isp_reg_writel(isp, reg_hor[0], OMAP3_ISP_IOMEM_HIST, ISPHIST_R0_HORZ);  in hist_setup_regs()
129 	isp_reg_writel(isp, reg_ver[0], OMAP3_ISP_IOMEM_HIST, ISPHIST_R0_VERT);  in hist_setup_regs()
130 	isp_reg_writel(isp, reg_hor[1], OMAP3_ISP_IOMEM_HIST, ISPHIST_R1_HORZ);  in hist_setup_regs()
131 	isp_reg_writel(isp, reg_ver[1], OMAP3_ISP_IOMEM_HIST, ISPHIST_R1_VERT);  in hist_setup_regs()
132 	isp_reg_writel(isp, reg_hor[2], OMAP3_ISP_IOMEM_HIST, ISPHIST_R2_HORZ);  in hist_setup_regs()
133 	isp_reg_writel(isp, reg_ver[2], OMAP3_ISP_IOMEM_HIST, ISPHIST_R2_VERT);  in hist_setup_regs()
134 	isp_reg_writel(isp, reg_hor[3], OMAP3_ISP_IOMEM_HIST, ISPHIST_R3_HORZ);  in hist_setup_regs()
135 	isp_reg_writel(isp, reg_ver[3], OMAP3_ISP_IOMEM_HIST, ISPHIST_R3_VERT);  in hist_setup_regs()
146 		isp_reg_set(hist->isp, OMAP3_ISP_IOMEM_HIST, ISPHIST_PCR,  in hist_enable()
148 		omap3isp_subclk_enable(hist->isp, OMAP3_ISP_SUBCLK_HIST);  in hist_enable()
150 		isp_reg_clr(hist->isp, OMAP3_ISP_IOMEM_HIST, ISPHIST_PCR,  in hist_enable()
152 		omap3isp_subclk_disable(hist->isp, OMAP3_ISP_SUBCLK_HIST);  in hist_enable()
158 	return isp_reg_readl(hist->isp, OMAP3_ISP_IOMEM_HIST, ISPHIST_PCR)  in hist_busy()
168 	isp_reg_clr(hist->isp, OMAP3_ISP_IOMEM_HIST, ISPHIST_CNT,  in hist_dma_cb()
173 		omap3isp_hist_dma_done(hist->isp);  in hist_dma_cb()
185 		dev_dbg(hist->isp->dev, "hist: invalid DMA buffer address\n");  in hist_buf_dma()
189 	isp_reg_writel(hist->isp, 0, OMAP3_ISP_IOMEM_HIST, ISPHIST_ADDR);  in hist_buf_dma()
190 	isp_reg_set(hist->isp, OMAP3_ISP_IOMEM_HIST, ISPHIST_CNT,  in hist_buf_dma()
192 	omap3isp_flush(hist->isp);  in hist_buf_dma()
195 	cfg.src_addr = hist->isp->mmio_hist_base_phys + ISPHIST_DATA;  in hist_buf_dma()
201 		dev_dbg(hist->isp->dev,  in hist_buf_dma()
210 		dev_dbg(hist->isp->dev,  in hist_buf_dma()
219 		dev_dbg(hist->isp->dev, "hist: DMA submission failed\n");  in hist_buf_dma()
234 	struct isp_device *isp = hist->isp;  in hist_buf_pio()  local
239 		dev_dbg(isp->dev, "hist: invalid PIO buffer address\n");  in hist_buf_pio()
244 	isp_reg_writel(isp, 0, OMAP3_ISP_IOMEM_HIST, ISPHIST_ADDR);  in hist_buf_pio()
251 	isp_reg_set(isp, OMAP3_ISP_IOMEM_HIST, ISPHIST_CNT, ISPHIST_CNT_CLEAR);  in hist_buf_pio()
259 		*buf++ = isp_reg_readl(isp, OMAP3_ISP_IOMEM_HIST, ISPHIST_DATA);  in hist_buf_pio()
260 		*buf++ = isp_reg_readl(isp, OMAP3_ISP_IOMEM_HIST, ISPHIST_DATA);  in hist_buf_pio()
261 		*buf++ = isp_reg_readl(isp, OMAP3_ISP_IOMEM_HIST, ISPHIST_DATA);  in hist_buf_pio()
262 		*buf++ = isp_reg_readl(isp, OMAP3_ISP_IOMEM_HIST, ISPHIST_DATA);  in hist_buf_pio()
264 	isp_reg_clr(hist->isp, OMAP3_ISP_IOMEM_HIST, ISPHIST_CNT,  in hist_buf_pio()
271  * hist_buf_process - Callback from ISP driver for HIST interrupt.
477 int omap3isp_hist_init(struct isp_device *isp)  in omap3isp_hist_init()  argument
479 	struct ispstat *hist = &isp->isp_hist;  in omap3isp_hist_init()
483 	hist_cfg = devm_kzalloc(isp->dev, sizeof(*hist_cfg), GFP_KERNEL);  in omap3isp_hist_init()
487 	hist->isp = isp;  in omap3isp_hist_init()
508 			dev_warn(isp->dev,  in omap3isp_hist_init()
511 			dev_dbg(isp->dev, "hist: using DMA channel %s\n",  in omap3isp_hist_init()
532 void omap3isp_hist_cleanup(struct isp_device *isp)  in omap3isp_hist_cleanup()  argument
534 	struct ispstat *hist = &isp->isp_hist;  in omap3isp_hist_cleanup()