diff options
Diffstat (limited to 'drivers/staging/imx-drm/ipu-v3/ipu-dp.c')
| -rw-r--r-- | drivers/staging/imx-drm/ipu-v3/ipu-dp.c | 363 |
1 files changed, 0 insertions, 363 deletions
diff --git a/drivers/staging/imx-drm/ipu-v3/ipu-dp.c b/drivers/staging/imx-drm/ipu-v3/ipu-dp.c deleted file mode 100644 index d90f82a87d19..000000000000 --- a/drivers/staging/imx-drm/ipu-v3/ipu-dp.c +++ /dev/null @@ -1,363 +0,0 @@ -/* - * Copyright (c) 2010 Sascha Hauer <s.hauer@pengutronix.de> - * Copyright (C) 2005-2009 Freescale Semiconductor, Inc. - * - * This program is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License as published by the - * Free Software Foundation; either version 2 of the License, or (at your - * option) any later version. - * - * This program is distributed in the hope that it will be useful, but - * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY - * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License - * for more details. - */ -#include <linux/export.h> -#include <linux/kernel.h> -#include <linux/types.h> -#include <linux/errno.h> -#include <linux/io.h> -#include <linux/err.h> - -#include "imx-ipu-v3.h" -#include "ipu-prv.h" - -#define DP_SYNC 0 -#define DP_ASYNC0 0x60 -#define DP_ASYNC1 0xBC - -#define DP_COM_CONF 0x0 -#define DP_GRAPH_WIND_CTRL 0x0004 -#define DP_FG_POS 0x0008 -#define DP_CSC_A_0 0x0044 -#define DP_CSC_A_1 0x0048 -#define DP_CSC_A_2 0x004C -#define DP_CSC_A_3 0x0050 -#define DP_CSC_0 0x0054 -#define DP_CSC_1 0x0058 - -#define DP_COM_CONF_FG_EN (1 << 0) -#define DP_COM_CONF_GWSEL (1 << 1) -#define DP_COM_CONF_GWAM (1 << 2) -#define DP_COM_CONF_GWCKE (1 << 3) -#define DP_COM_CONF_CSC_DEF_MASK (3 << 8) -#define DP_COM_CONF_CSC_DEF_OFFSET 8 -#define DP_COM_CONF_CSC_DEF_FG (3 << 8) -#define DP_COM_CONF_CSC_DEF_BG (2 << 8) -#define DP_COM_CONF_CSC_DEF_BOTH (1 << 8) - -#define IPUV3_NUM_FLOWS 3 - -struct ipu_dp_priv; - -struct ipu_dp { - u32 flow; - bool in_use; - bool foreground; - enum ipu_color_space in_cs; -}; - -struct ipu_flow { - struct ipu_dp foreground; - struct ipu_dp background; - enum ipu_color_space out_cs; - void __iomem *base; - struct ipu_dp_priv *priv; -}; - -struct ipu_dp_priv { - struct ipu_soc *ipu; - struct device *dev; - void __iomem *base; - struct ipu_flow flow[IPUV3_NUM_FLOWS]; - struct mutex mutex; - int use_count; -}; - -static u32 ipu_dp_flow_base[] = {DP_SYNC, DP_ASYNC0, DP_ASYNC1}; - -static inline struct ipu_flow *to_flow(struct ipu_dp *dp) -{ - if (dp->foreground) - return container_of(dp, struct ipu_flow, foreground); - else - return container_of(dp, struct ipu_flow, background); -} - -int ipu_dp_set_global_alpha(struct ipu_dp *dp, bool enable, - u8 alpha, bool bg_chan) -{ - struct ipu_flow *flow = to_flow(dp); - struct ipu_dp_priv *priv = flow->priv; - u32 reg; - - mutex_lock(&priv->mutex); - - reg = readl(flow->base + DP_COM_CONF); - if (bg_chan) - reg &= ~DP_COM_CONF_GWSEL; - else - reg |= DP_COM_CONF_GWSEL; - writel(reg, flow->base + DP_COM_CONF); - - if (enable) { - reg = readl(flow->base + DP_GRAPH_WIND_CTRL) & 0x00FFFFFFL; - writel(reg | ((u32) alpha << 24), - flow->base + DP_GRAPH_WIND_CTRL); - - reg = readl(flow->base + DP_COM_CONF); - writel(reg | DP_COM_CONF_GWAM, flow->base + DP_COM_CONF); - } else { - reg = readl(flow->base + DP_COM_CONF); - writel(reg & ~DP_COM_CONF_GWAM, flow->base + DP_COM_CONF); - } - - ipu_srm_dp_sync_update(priv->ipu); - - mutex_unlock(&priv->mutex); - - return 0; -} -EXPORT_SYMBOL_GPL(ipu_dp_set_global_alpha); - -int ipu_dp_set_window_pos(struct ipu_dp *dp, u16 x_pos, u16 y_pos) -{ - struct ipu_flow *flow = to_flow(dp); - struct ipu_dp_priv *priv = flow->priv; - - writel((x_pos << 16) | y_pos, flow->base + DP_FG_POS); - - ipu_srm_dp_sync_update(priv->ipu); - - return 0; -} -EXPORT_SYMBOL_GPL(ipu_dp_set_window_pos); - -static void ipu_dp_csc_init(struct ipu_flow *flow, - enum ipu_color_space in, - enum ipu_color_space out, - u32 place) -{ - u32 reg; - - reg = readl(flow->base + DP_COM_CONF); - reg &= ~DP_COM_CONF_CSC_DEF_MASK; - - if (in == out) { - writel(reg, flow->base + DP_COM_CONF); - return; - } - - if (in == IPUV3_COLORSPACE_RGB && out == IPUV3_COLORSPACE_YUV) { - writel(0x099 | (0x12d << 16), flow->base + DP_CSC_A_0); - writel(0x03a | (0x3a9 << 16), flow->base + DP_CSC_A_1); - writel(0x356 | (0x100 << 16), flow->base + DP_CSC_A_2); - writel(0x100 | (0x329 << 16), flow->base + DP_CSC_A_3); - writel(0x3d6 | (0x0000 << 16) | (2 << 30), - flow->base + DP_CSC_0); - writel(0x200 | (2 << 14) | (0x200 << 16) | (2 << 30), - flow->base + DP_CSC_1); - } else { - writel(0x095 | (0x000 << 16), flow->base + DP_CSC_A_0); - writel(0x0cc | (0x095 << 16), flow->base + DP_CSC_A_1); - writel(0x3ce | (0x398 << 16), flow->base + DP_CSC_A_2); - writel(0x095 | (0x0ff << 16), flow->base + DP_CSC_A_3); - writel(0x000 | (0x3e42 << 16) | (1 << 30), - flow->base + DP_CSC_0); - writel(0x10a | (1 << 14) | (0x3dd6 << 16) | (1 << 30), - flow->base + DP_CSC_1); - } - - reg |= place; - - writel(reg, flow->base + DP_COM_CONF); -} - -int ipu_dp_setup_channel(struct ipu_dp *dp, - enum ipu_color_space in, - enum ipu_color_space out) -{ - struct ipu_flow *flow = to_flow(dp); - struct ipu_dp_priv *priv = flow->priv; - - mutex_lock(&priv->mutex); - - dp->in_cs = in; - - if (!dp->foreground) - flow->out_cs = out; - - if (flow->foreground.in_cs == flow->background.in_cs) { - /* - * foreground and background are of same colorspace, put - * colorspace converter after combining unit. - */ - ipu_dp_csc_init(flow, flow->foreground.in_cs, flow->out_cs, - DP_COM_CONF_CSC_DEF_BOTH); - } else { - if (flow->foreground.in_cs == flow->out_cs) - /* - * foreground identical to output, apply color - * conversion on background - */ - ipu_dp_csc_init(flow, flow->background.in_cs, - flow->out_cs, DP_COM_CONF_CSC_DEF_BG); - else - ipu_dp_csc_init(flow, flow->foreground.in_cs, - flow->out_cs, DP_COM_CONF_CSC_DEF_FG); - } - - ipu_srm_dp_sync_update(priv->ipu); - - mutex_unlock(&priv->mutex); - - return 0; -} -EXPORT_SYMBOL_GPL(ipu_dp_setup_channel); - -int ipu_dp_enable(struct ipu_soc *ipu) -{ - struct ipu_dp_priv *priv = ipu->dp_priv; - - mutex_lock(&priv->mutex); - - if (!priv->use_count) - ipu_module_enable(priv->ipu, IPU_CONF_DP_EN); - - priv->use_count++; - - mutex_unlock(&priv->mutex); - - return 0; -} -EXPORT_SYMBOL_GPL(ipu_dp_enable); - -int ipu_dp_enable_channel(struct ipu_dp *dp) -{ - struct ipu_flow *flow = to_flow(dp); - struct ipu_dp_priv *priv = flow->priv; - u32 reg; - - if (!dp->foreground) - return 0; - - mutex_lock(&priv->mutex); - - reg = readl(flow->base + DP_COM_CONF); - reg |= DP_COM_CONF_FG_EN; - writel(reg, flow->base + DP_COM_CONF); - - ipu_srm_dp_sync_update(priv->ipu); - - mutex_unlock(&priv->mutex); - - return 0; -} -EXPORT_SYMBOL_GPL(ipu_dp_enable_channel); - -void ipu_dp_disable_channel(struct ipu_dp *dp) -{ - struct ipu_flow *flow = to_flow(dp); - struct ipu_dp_priv *priv = flow->priv; - u32 reg, csc; - - if (!dp->foreground) - return; - - mutex_lock(&priv->mutex); - - reg = readl(flow->base + DP_COM_CONF); - csc = reg & DP_COM_CONF_CSC_DEF_MASK; - if (csc == DP_COM_CONF_CSC_DEF_FG) - reg &= ~DP_COM_CONF_CSC_DEF_MASK; - - reg &= ~DP_COM_CONF_FG_EN; - writel(reg, flow->base + DP_COM_CONF); - - writel(0, flow->base + DP_FG_POS); - ipu_srm_dp_sync_update(priv->ipu); - - if (ipu_idmac_channel_busy(priv->ipu, IPUV3_CHANNEL_MEM_BG_SYNC)) - ipu_wait_interrupt(priv->ipu, IPU_IRQ_DP_SF_END, 50); - - mutex_unlock(&priv->mutex); -} -EXPORT_SYMBOL_GPL(ipu_dp_disable_channel); - -void ipu_dp_disable(struct ipu_soc *ipu) -{ - struct ipu_dp_priv *priv = ipu->dp_priv; - - mutex_lock(&priv->mutex); - - priv->use_count--; - - if (!priv->use_count) - ipu_module_disable(priv->ipu, IPU_CONF_DP_EN); - - if (priv->use_count < 0) - priv->use_count = 0; - - mutex_unlock(&priv->mutex); -} -EXPORT_SYMBOL_GPL(ipu_dp_disable); - -struct ipu_dp *ipu_dp_get(struct ipu_soc *ipu, unsigned int flow) -{ - struct ipu_dp_priv *priv = ipu->dp_priv; - struct ipu_dp *dp; - - if ((flow >> 1) >= IPUV3_NUM_FLOWS) - return ERR_PTR(-EINVAL); - - if (flow & 1) - dp = &priv->flow[flow >> 1].foreground; - else - dp = &priv->flow[flow >> 1].background; - - if (dp->in_use) - return ERR_PTR(-EBUSY); - - dp->in_use = true; - - return dp; -} -EXPORT_SYMBOL_GPL(ipu_dp_get); - -void ipu_dp_put(struct ipu_dp *dp) -{ - dp->in_use = false; -} -EXPORT_SYMBOL_GPL(ipu_dp_put); - -int ipu_dp_init(struct ipu_soc *ipu, struct device *dev, unsigned long base) -{ - struct ipu_dp_priv *priv; - int i; - - priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL); - if (!priv) - return -ENOMEM; - priv->dev = dev; - priv->ipu = ipu; - - ipu->dp_priv = priv; - - priv->base = devm_ioremap(dev, base, PAGE_SIZE); - if (!priv->base) - return -ENOMEM; - - mutex_init(&priv->mutex); - - for (i = 0; i < IPUV3_NUM_FLOWS; i++) { - priv->flow[i].foreground.foreground = true; - priv->flow[i].base = priv->base + ipu_dp_flow_base[i]; - priv->flow[i].priv = priv; - } - - return 0; -} - -void ipu_dp_exit(struct ipu_soc *ipu) -{ -} |