/* * Copyright (C) 2012-2014 Mentor Graphics Inc. * Copyright 2005-2012 Freescale Semiconductor, Inc. All Rights Reserved. * * The code contained herein is licensed under the GNU General Public * License. You may obtain a copy of the GNU General Public License * Version 2 or later at the following locations: * * http://www.opensource.org/licenses/gpl-license.html * http://www.gnu.org/copyleft/gpl.html */ #include #include #include #include #include #include #include #include #include "ipu-prv.h" /* IC Register Offsets */ #define IC_CONF 0x0000 #define IC_PRP_ENC_RSC 0x0004 #define IC_PRP_VF_RSC 0x0008 #define IC_PP_RSC 0x000C #define IC_CMBP_1 0x0010 #define IC_CMBP_2 0x0014 #define IC_IDMAC_1 0x0018 #define IC_IDMAC_2 0x001C #define IC_IDMAC_3 0x0020 #define IC_IDMAC_4 0x0024 /* IC Register Fields */ #define IC_CONF_PRPENC_EN (1 << 0) #define IC_CONF_PRPENC_CSC1 (1 << 1) #define IC_CONF_PRPENC_ROT_EN (1 << 2) #define IC_CONF_PRPVF_EN (1 << 8) #define IC_CONF_PRPVF_CSC1 (1 << 9) #define IC_CONF_PRPVF_CSC2 (1 << 10) #define IC_CONF_PRPVF_CMB (1 << 11) #define IC_CONF_PRPVF_ROT_EN (1 << 12) #define IC_CONF_PP_EN (1 << 16) #define IC_CONF_PP_CSC1 (1 << 17) #define IC_CONF_PP_CSC2 (1 << 18) #define IC_CONF_PP_CMB (1 << 19) #define IC_CONF_PP_ROT_EN (1 << 20) #define IC_CONF_IC_GLB_LOC_A (1 << 28) #define IC_CONF_KEY_COLOR_EN (1 << 29) #define IC_CONF_RWS_EN (1 << 30) #define IC_CONF_CSI_MEM_WR_EN (1 << 31) #define IC_IDMAC_1_CB0_BURST_16 (1 << 0) #define IC_IDMAC_1_CB1_BURST_16 (1 << 1) #define IC_IDMAC_1_CB2_BURST_16 (1 << 2) #define IC_IDMAC_1_CB3_BURST_16 (1 << 3) #define IC_IDMAC_1_CB4_BURST_16 (1 << 4) #define IC_IDMAC_1_CB5_BURST_16 (1 << 5) #define IC_IDMAC_1_CB6_BURST_16 (1 << 6) #define IC_IDMAC_1_CB7_BURST_16 (1 << 7) #define IC_IDMAC_1_PRPENC_ROT_MASK (0x7 << 11) #define IC_IDMAC_1_PRPENC_ROT_OFFSET 11 #define IC_IDMAC_1_PRPVF_ROT_MASK (0x7 << 14) #define IC_IDMAC_1_PRPVF_ROT_OFFSET 14 #define IC_IDMAC_1_PP_ROT_MASK (0x7 << 17) #define IC_IDMAC_1_PP_ROT_OFFSET 17 #define IC_IDMAC_1_PP_FLIP_RS (1 << 22) #define IC_IDMAC_1_PRPVF_FLIP_RS (1 << 21) #define IC_IDMAC_1_PRPENC_FLIP_RS (1 << 20) #define IC_IDMAC_2_PRPENC_HEIGHT_MASK (0x3ff << 0) #define IC_IDMAC_2_PRPENC_HEIGHT_OFFSET 0 #define IC_IDMAC_2_PRPVF_HEIGHT_MASK (0x3ff << 10) #define IC_IDMAC_2_PRPVF_HEIGHT_OFFSET 10 #define IC_IDMAC_2_PP_HEIGHT_MASK (0x3ff << 20) #define IC_IDMAC_2_PP_HEIGHT_OFFSET 20 #define IC_IDMAC_3_PRPENC_WIDTH_MASK (0x3ff << 0) #define IC_IDMAC_3_PRPENC_WIDTH_OFFSET 0 #define IC_IDMAC_3_PRPVF_WIDTH_MASK (0x3ff << 10) #define IC_IDMAC_3_PRPVF_WIDTH_OFFSET 10 #define IC_IDMAC_3_PP_WIDTH_MASK (0x3ff << 20) #define IC_IDMAC_3_PP_WIDTH_OFFSET 20 struct ic_task_regoffs { u32 rsc; u32 tpmem_csc[2]; }; struct ic_task_bitfields { u32 ic_conf_en; u32 ic_conf_rot_en; u32 ic_conf_cmb_en; u32 ic_conf_csc1_en; u32 ic_conf_csc2_en; u32 ic_cmb_galpha_bit; }; static const struct ic_task_regoffs ic_task_reg[IC_NUM_TASKS] = { [IC_TASK_ENCODER] = { .rsc = IC_PRP_ENC_RSC, .tpmem_csc = {0x2008, 0}, }, [IC_TASK_VIEWFINDER] = { .rsc = IC_PRP_VF_RSC, .tpmem_csc = {0x4028, 0x4040}, }, [IC_TASK_POST_PROCESSOR] = { .rsc = IC_PP_RSC, .tpmem_csc = {0x6060, 0x6078}, }, }; static const struct ic_task_bitfields ic_task_bit[IC_NUM_TASKS] = { [IC_TASK_ENCODER] = { .ic_conf_en = IC_CONF_PRPENC_EN, .ic_conf_rot_en = IC_CONF_PRPENC_ROT_EN, .ic_conf_cmb_en = 0, /* NA */ .ic_conf_csc1_en = IC_CONF_PRPENC_CSC1, .ic_conf_csc2_en = 0, /* NA */ .ic_cmb_galpha_bit = 0, /* NA */ }, [IC_TASK_VIEWFINDER] = { .ic_conf_en = IC_CONF_PRPVF_EN, .ic_conf_rot_en = IC_CONF_PRPVF_ROT_EN, .ic_conf_cmb_en = IC_CONF_PRPVF_CMB, .ic_conf_csc1_en = IC_CONF_PRPVF_CSC1, .ic_conf_csc2_en = IC_CONF_PRPVF_CSC2, .ic_cmb_galpha_bit = 0, }, [IC_TASK_POST_PROCESSOR] = { .ic_conf_en = IC_CONF_PP_EN, .ic_conf_rot_en = IC_CONF_PP_ROT_EN, .ic_conf_cmb_en = IC_CONF_PP_CMB, .ic_conf_csc1_en = IC_CONF_PP_CSC1, .ic_conf_csc2_en = IC_CONF_PP_CSC2, .ic_cmb_galpha_bit = 8, }, }; struct ipu_ic_priv; struct ipu_ic { enum ipu_ic_task task; const struct ic_task_regoffs *reg; const struct ic_task_bitfields *bit; enum ipu_color_space in_cs, g_in_cs; enum ipu_color_space out_cs; bool graphics; bool rotation; bool in_use; struct ipu_ic_priv *priv; }; struct ipu_ic_priv { void __iomem *base; void __iomem *tpmem_base; spinlock_t lock; struct ipu_soc *ipu; int use_count; int irt_use_count; struct ipu_ic task[IC_NUM_TASKS]; }; static inline u32 ipu_ic_read(struct ipu_ic *ic, unsigned offset) { return readl(ic->priv->base + offset); } static inline void ipu_ic_write(struct ipu_ic *ic, u32 value, unsigned offset) { writel(value, ic->priv->base + offset); } struct ic_csc_params { s16 coeff[3][3]; /* signed 9-bit integer coefficients */ s16 offset[3]; /* signed 11+2-bit fixed point offset */ u8 scale:2; /* scale coefficients * 2^(scale-1) */ bool sat:1; /* saturate to (16, 235(Y) / 240(U, V)) */ }; /* * Y = R * .299 + G * .587 + B * .114; * U = R * -.169 + G * -.332 + B * .500 + 128.; * V = R * .500 + G * -.419 + B * -.0813 + 128.; */ static const struct ic_csc_params ic_csc_rgb2ycbcr = { .coeff = { { 77, 150, 29 }, { 469, 427, 128 }, { 128, 405, 491 }, }, .offset = { 0, 512, 512 }, .scale = 1, }; /* transparent RGB->RGB matrix for graphics combining */ static const struct ic_csc_params ic_csc_rgb2rgb = { .coeff = { { 128, 0, 0 }, { 0, 128, 0 }, { 0, 0, 128 }, }, .scale = 2, }; /* * R = (1.164 * (Y - 16)) + (1.596 * (Cr - 128)); * G = (1.164 * (Y - 16)) - (0.392 * (Cb - 128)) - (0.813 * (Cr - 128)); * B = (1.164 * (Y - 16)) + (2.017 * (Cb - 128); */ static const struct ic_csc_params ic_csc_ycbcr2rgb = { .coeff = { { 149, 0, 204 }, { 149, 462, 408 }, { 149, 255, 0 }, }, .offset = { -446, 266, -554 }, .scale = 2, }; static int init_csc(struct ipu_ic *ic, enum ipu_color_space inf, enum ipu_color_space outf, int csc_index) { struct ipu_ic_priv *priv = ic->priv; const struct ic_csc_params *params; u32 __iomem *base; const u16 (*c)[3]; const u16 *a; u32 param; base = (u32 __iomem *) (priv->tpmem_base + ic->reg->tpmem_csc[csc_index]); if (inf == IPUV3_COLORSPACE_YUV && outf == IPUV3_COLORSPACE_RGB) params = &ic_csc_ycbcr2rgb; else if (inf == IPUV3_COLORSPACE_RGB && outf == IPUV3_COLORSPACE_YUV) params = &ic_csc_rgb2ycbcr; else if (inf == IPUV3_COLORSPACE_RGB && outf == IPUV3_COLORSPACE_RGB) params = &ic_csc_rgb2rgb; else { dev_err(priv->ipu->dev, "Unsupported color space conversion\n"); return -EINVAL; } /* Cast to unsigned */ c = (const u16 (*)[3])params->coeff; a = (const u16 *)params->offset; param = ((a[0] & 0x1f) << 27) | ((c[0][0] & 0x1ff) << 18) | ((c[1][1] & 0x1ff) << 9) | (c[2][2] & 0x1ff); writel(param, base++); param = ((a[0] & 0x1fe0) >> 5) | (params->scale << 8) | (params->sat << 9); writel(param, base++); param = ((a[1] & 0x1f) << 27) | ((c[0][1] & 0x1ff) << 18) | ((c[1][0] & 0x1ff) << 9) | (c[2][0] & 0x1ff); writel(param, base++); param = ((a[1] & 0x1fe0) >> 5); writel(param, base++); param = ((a[2] & 0x1f) << 27) | ((c[0][2] & 0x1ff) << 18) | ((c[1][2] & 0x1ff) << 9) | (c[2][1] & 0x1ff); writel(param, base++); param = ((a[2] & 0x1fe0) >> 5); writel(param, base++); return 0; } static int calc_resize_coeffs(struct ipu_ic *ic, u32 in_size, u32 out_size, u32 *resize_coeff, u32 *downsize_coeff) { struct ipu_ic_priv *priv = ic->priv; struct ipu_soc *ipu = priv->ipu; u32 temp_size, temp_downsize; /* * Input size cannot be more than 4096, and output size cannot * be more than 1024 */ if (in_size > 4096) { dev_err(ipu->dev, "Unsupported resize (in_size > 4096)\n"); return -EINVAL; } if (out_size > 1024) { dev_err(ipu->dev, "Unsupported resize (out_size > 1024)\n"); return -EINVAL; } /* Cannot downsize more than 4:1 */ if ((out_size << 2) < in_size) { dev_err(ipu->dev, "Unsupported downsize\n"); return -EINVAL; } /* Compute downsizing coefficient */ temp_downsize = 0; temp_size = in_size; while (((temp_size > 1024) || (temp_size >= out_size * 2)) && (temp_downsize < 2)) { temp_size >>= 1; temp_downsize++; } *downsize_coeff = temp_downsize; /* * compute resizing coefficient using the following equation: * resize_coeff = M * (SI - 1) / (SO - 1) * where M = 2^13, SI = input size, SO = output size */ *resize_coeff = (8192L * (temp_size - 1)) / (out_size - 1); if (*resize_coeff >= 16384L) { dev_err(ipu->dev, "Warning! Overflow on resize coeff.\n"); *resize_coeff = 0x3FFF; } return 0; } void ipu_ic_task_enable(struct ipu_ic *ic) { struct ipu_ic_priv *priv = ic->priv; unsigned long flags; u32 ic_conf; spin_lock_irqsave(&priv->lock, flags); ic_conf = ipu_ic_read(ic, IC_CONF); ic_conf |= ic->bit->ic_conf_en; if (ic->rotation) ic_conf |= ic->bit->ic_conf_rot_en; if (ic->in_cs != ic->out_cs) ic_conf |= ic->bit->ic_conf_csc1_en; if (ic->graphics) { ic_conf |= ic->bit->ic_conf_cmb_en; ic_conf |= ic->bit->ic_conf_csc1_en; if (ic->g_in_cs != ic->out_cs) ic_conf |= ic->bit->ic_conf_csc2_en; } ipu_ic_write(ic, ic_conf, IC_CONF); spin_unlock_irqrestore(&priv->lock, flags); } EXPORT_SYMBOL_GPL(ipu_ic_task_enable); void ipu_ic_task_disable(struct ipu_ic *ic) { struct ipu_ic_priv *priv = ic->priv; unsigned long flags; u32 ic_conf; spin_lock_irqsave(&priv->lock, flags); ic_conf = ipu_ic_read(ic, IC_CONF); ic_conf &= ~(ic->bit->ic_conf_en | ic->bit->ic_conf_csc1_en | ic->bit->ic_conf_rot_en); if (ic->bit->ic_conf_csc2_en) ic_conf &= ~ic->bit->ic_conf_csc2_en; if (ic->bit->ic_conf_cmb_en) ic_conf &= ~ic->bit->ic_conf_cmb_en; ipu_ic_write(ic, ic_conf, IC_CONF); spin_unlock_irqrestore(&priv->lock, flags); } EXPORT_SYMBOL_GPL(ipu_ic_task_disable); int ipu_ic_task_graphics_init(struct ipu_ic *ic, enum ipu_color_space in_g_cs, bool galpha_en, u32 galpha, bool colorkey_en, u32 colorkey) { struct ipu_ic_priv *priv = ic->priv; unsigned long flags; u32 reg, ic_conf; int ret = 0; if (ic->task == IC_TASK_ENCODER) return -EINVAL; spin_lock_irqsave(&priv->lock, flags); ic_conf = ipu_ic_read(ic, IC_CONF); if (!(ic_conf & ic->bit->ic_conf_csc1_en)) { /* need transparent CSC1 conversion */ ret = init_csc(ic, IPUV3_COLORSPACE_RGB, IPUV3_COLORSPACE_RGB, 0); if (ret) goto unlock; } ic->g_in_cs = in_g_cs; if (ic->g_in_cs != ic->out_cs) { ret = init_csc(ic, ic->g_in_cs, ic->out_cs, 1); if (ret) goto unlock; } if (galpha_en) { ic_conf |= IC_CONF_IC_GLB_LOC_A; reg = ipu_ic_read(ic, IC_CMBP_1); reg &= ~(0xff << ic->bit->ic_cmb_galpha_bit); reg |= (galpha << ic->bit->ic_cmb_galpha_bit); ipu_ic_write(ic, reg, IC_CMBP_1); } else ic_conf &= ~IC_CONF_IC_GLB_LOC_A; if (colorkey_en) { ic_conf |= IC_CONF_KEY_COLOR_EN; ipu_ic_write(ic, colorkey, IC_CMBP_2); } else ic_conf &= ~IC_CONF_KEY_COLOR_EN; ipu_ic_write(ic, ic_conf, IC_CONF); ic->graphics = true; unlock: spin_unlock_irqrestore(&priv->lock, flags); return ret; } EXPORT_SYMBOL_GPL(ipu_ic_task_graphics_init); int ipu_ic_task_init(struct ipu_ic *ic, int in_width, int in_height, int out_width, int out_height, enum ipu_color_space in_cs, enum ipu_color_space out_cs) { struct ipu_ic_priv *priv = ic->priv; u32 reg, downsize_coeff, resize_coeff; unsigned long flags; int ret = 0; /* Setup vertical resizing */ ret = calc_resize_coeffs(ic, in_height, out_height, &resize_coeff, &downsize_coeff); if (ret) return ret; reg = (downsize_coeff << 30) | (resize_coeff << 16); /* Setup horizontal resizing */ ret = calc_resize_coeffs(ic, in_width, out_width, &resize_coeff, &downsize_coeff); if (ret) return ret; reg |= (downsize_coeff << 14) | resize_coeff; spin_lock_irqsave(&priv->lock, flags); ipu_ic_write(ic, reg, ic->reg->rsc); /* Setup color space conversion */ ic->in_cs = in_cs; ic->out_cs = out_cs; if (ic->in_cs != ic->out_cs) { ret = init_csc(ic, ic->in_cs, ic->out_cs, 0); if (ret) goto unlock; } unlock: spin_unlock_irqrestore(&priv->lock, flags); return ret; } EXPORT_SYMBOL_GPL(ipu_ic_task_init); int ipu_ic_task_idma_init(struct ipu_ic *ic, struct ipuv3_channel *channel, u32 width, u32 height, int burst_size, enum ipu_rotate_mode rot) { struct ipu_ic_priv *priv = ic->priv; struct ipu_soc *ipu = priv->ipu; u32 ic_idmac_1, ic_idmac_2, ic_idmac_3; u32 temp_rot = bitrev8(rot) >> 5; bool need_hor_flip = false; unsigned long flags; int ret = 0; if ((burst_size != 8) && (burst_size != 16)) { dev_err(ipu->dev, "Illegal burst length for IC\n"); return -EINVAL; } width--; height--; if (temp_rot & 0x2) /* Need horizontal flip */ need_hor_flip = true; spin_lock_irqsave(&priv->lock, flags); ic_idmac_1 = ipu_ic_read(ic, IC_IDMAC_1); ic_idmac_2 = ipu_ic_read(ic, IC_IDMAC_2); ic_idmac_3 = ipu_ic_read(ic, IC_IDMAC_3); switch (channel->num) { case IPUV3_CHANNEL_IC_PP_MEM: if (burst_size == 16) ic_idmac_1 |= IC_IDMAC_1_CB2_BURST_16; else ic_idmac_1 &= ~IC_IDMAC_1_CB2_BURST_16; if (need_hor_flip) ic_idmac_1 |= IC_IDMAC_1_PP_FLIP_RS; else ic_idmac_1 &= ~IC_IDMAC_1_PP_FLIP_RS; ic_idmac_2 &= ~IC_IDMAC_2_PP_HEIGHT_MASK; ic_idmac_2 |= height << IC_IDMAC_2_PP_HEIGHT_OFFSET; ic_idmac_3 &= ~IC_IDMAC_3_PP_WIDTH_MASK; ic_idmac_3 |= width << IC_IDMAC_3_PP_WIDTH_OFFSET; break; case IPUV3_CHANNEL_MEM_IC_PP: if (burst_size == 16) ic_idmac_1 |= IC_IDMAC_1_CB5_BURST_16; else ic_idmac_1 &= ~IC_IDMAC_1_CB5_BURST_16; break; case IPUV3_CHANNEL_MEM_ROT_PP: ic_idmac_1 &= ~IC_IDMAC_1_PP_ROT_MASK; ic_idmac_1 |= temp_rot << IC_IDMAC_1_PP_ROT_OFFSET; break; case IPUV3_CHANNEL_MEM_IC_PRP_VF: if (burst_size == 16) ic_idmac_1 |= IC_IDMAC_1_CB6_BURST_16; else ic_idmac_1 &= ~IC_IDMAC_1_CB6_BURST_16; break; case IPUV3_CHANNEL_IC_PRP_ENC_MEM: if (burst_size == 16) ic_idmac_1 |= IC_IDMAC_1_CB0_BURST_16; else ic_idmac_1 &= ~IC_IDMAC_1_CB0_BURST_16; if (need_hor_flip) ic_idmac_1 |= IC_IDMAC_1_PRPENC_FLIP_RS; else ic_idmac_1 &= ~IC_IDMAC_1_PRPENC_FLIP_RS; ic_idmac_2 &= ~IC_IDMAC_2_PRPENC_HEIGHT_MASK; ic_idmac_2 |= height << IC_IDMAC_2_PRPENC_HEIGHT_OFFSET; ic_idmac_3 &= ~IC_IDMAC_3_PRPENC_WIDTH_MASK; ic_idmac_3 |= width << IC_IDMAC_3_PRPENC_WIDTH_OFFSET; break; case IPUV3_CHANNEL_MEM_ROT_ENC: ic_idmac_1 &= ~IC_IDMAC_1_PRPENC_ROT_MASK; ic_idmac_1 |= temp_rot << IC_IDMAC_1_PRPENC_ROT_OFFSET; break; case IPUV3_CHANNEL_IC_PRP_VF_MEM: if (burst_size == 16) ic_idmac_1 |= IC_IDMAC_1_CB1_BURST_16; else ic_idmac_1 &= ~IC_IDMAC_1_CB1_BURST_16; if (need_hor_flip) ic_idmac_1 |= IC_IDMAC_1_PRPVF_FLIP_RS; else ic_idmac_1 &= ~IC_IDMAC_1_PRPVF_FLIP_RS; ic_idmac_2 &= ~IC_IDMAC_2_PRPVF_HEIGHT_MASK; ic_idmac_2 |= height << IC_IDMAC_2_PRPVF_HEIGHT_OFFSET; ic_idmac_3 &= ~IC_IDMAC_3_PRPVF_WIDTH_MASK; ic_idmac_3 |= width << IC_IDMAC_3_PRPVF_WIDTH_OFFSET; break; case IPUV3_CHANNEL_MEM_ROT_VF: ic_idmac_1 &= ~IC_IDMAC_1_PRPVF_ROT_MASK; ic_idmac_1 |= temp_rot << IC_IDMAC_1_PRPVF_ROT_OFFSET; break; case IPUV3_CHANNEL_G_MEM_IC_PRP_VF: if (burst_size == 16) ic_idmac_1 |= IC_IDMAC_1_CB3_BURST_16; else ic_idmac_1 &= ~IC_IDMAC_1_CB3_BURST_16; break; case IPUV3_CHANNEL_G_MEM_IC_PP: if (burst_size == 16) ic_idmac_1 |= IC_IDMAC_1_CB4_BURST_16; else ic_idmac_1 &= ~IC_IDMAC_1_CB4_BURST_16; break; case IPUV3_CHANNEL_VDI_MEM_IC_VF: if (burst_size == 16) ic_idmac_1 |= IC_IDMAC_1_CB7_BURST_16; else ic_idmac_1 &= ~IC_IDMAC_1_CB7_BURST_16; break; default: goto unlock; } ipu_ic_write(ic, ic_idmac_1, IC_IDMAC_1); ipu_ic_write(ic, ic_idmac_2, IC_IDMAC_2); ipu_ic_write(ic, ic_idmac_3, IC_IDMAC_3); if (ipu_rot_mode_is_irt(rot)) ic->rotation = true; unlock: spin_unlock_irqrestore(&priv->lock, flags); return ret; } EXPORT_SYMBOL_GPL(ipu_ic_task_idma_init); static void ipu_irt_enable(struct ipu_ic *ic) { struct ipu_ic_priv *priv = ic->priv; if (!priv->irt_use_count) ipu_module_enable(priv->ipu, IPU_CONF_ROT_EN); priv->irt_use_count++; } static void ipu_irt_disable(struct ipu_ic *ic) { struct ipu_ic_priv *priv = ic->priv; if (priv->irt_use_count) { if (!--priv->irt_use_count) ipu_module_disable(priv->ipu, IPU_CONF_ROT_EN); } } int ipu_ic_enable(struct ipu_ic *ic) { struct ipu_ic_priv *priv = ic->priv; unsigned long flags; spin_lock_irqsave(&priv->lock, flags); if (!priv->use_count) ipu_module_enable(priv->ipu, IPU_CONF_IC_EN); priv->use_count++; if (ic->rotation) ipu_irt_enable(ic); spin_unlock_irqrestore(&priv->lock, flags); return 0; } EXPORT_SYMBOL_GPL(ipu_ic_enable); int ipu_ic_disable(struct ipu_ic *ic) { struct ipu_ic_priv *priv = ic->priv; unsigned long flags; spin_lock_irqsave(&priv->lock, flags); priv->use_count--; if (!priv->use_count) ipu_module_disable(priv->ipu, IPU_CONF_IC_EN); if (priv->use_count < 0) priv->use_count = 0; if (ic->rotation) ipu_irt_disable(ic); ic->rotation = ic->graphics = false; spin_unlock_irqrestore(&priv->lock, flags); return 0; } EXPORT_SYMBOL_GPL(ipu_ic_disable); struct ipu_ic *ipu_ic_get(struct ipu_soc *ipu, enum ipu_ic_task task) { struct ipu_ic_priv *priv = ipu->ic_priv; unsigned long flags; struct ipu_ic *ic, *ret; if (task >= IC_NUM_TASKS) return ERR_PTR(-EINVAL); ic = &priv->task[task]; spin_lock_irqsave(&priv->lock, flags); if (ic->in_use) { ret = ERR_PTR(-EBUSY); goto unlock; } ic->in_use = true; ret = ic; unlock: spin_unlock_irqrestore(&priv->lock, flags); return ret; } EXPORT_SYMBOL_GPL(ipu_ic_get); void ipu_ic_put(struct ipu_ic *ic) { struct ipu_ic_priv *priv = ic->priv; unsigned long flags; spin_lock_irqsave(&priv->lock, flags); ic->in_use = false; spin_unlock_irqrestore(&priv->lock, flags); } EXPORT_SYMBOL_GPL(ipu_ic_put); int ipu_ic_init(struct ipu_soc *ipu, struct device *dev, unsigned long base, unsigned long tpmem_base) { struct ipu_ic_priv *priv; int i; priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL); if (!priv) return -ENOMEM; ipu->ic_priv = priv; spin_lock_init(&priv->lock); priv->base = devm_ioremap(dev, base, PAGE_SIZE); if (!priv->base) return -ENOMEM; priv->tpmem_base = devm_ioremap(dev, tpmem_base, SZ_64K); if (!priv->tpmem_base) return -ENOMEM; dev_dbg(dev, "IC base: 0x%08lx remapped to %p\n", base, priv->base); priv->ipu = ipu; for (i = 0; i < IC_NUM_TASKS; i++) { priv->task[i].task = i; priv->task[i].priv = priv; priv->task[i].reg = &ic_task_reg[i]; priv->task[i].bit = &ic_task_bit[i]; } return 0; } void ipu_ic_exit(struct ipu_soc *ipu) { } void ipu_ic_dump(struct ipu_ic *ic) { struct ipu_ic_priv *priv = ic->priv; struct ipu_soc *ipu = priv->ipu; dev_dbg(ipu->dev, "IC_CONF = \t0x%08X\n", ipu_ic_read(ic, IC_CONF)); dev_dbg(ipu->dev, "IC_PRP_ENC_RSC = \t0x%08X\n", ipu_ic_read(ic, IC_PRP_ENC_RSC)); dev_dbg(ipu->dev, "IC_PRP_VF_RSC = \t0x%08X\n", ipu_ic_read(ic, IC_PRP_VF_RSC)); dev_dbg(ipu->dev, "IC_PP_RSC = \t0x%08X\n", ipu_ic_read(ic, IC_PP_RSC)); dev_dbg(ipu->dev, "IC_CMBP_1 = \t0x%08X\n", ipu_ic_read(ic, IC_CMBP_1)); dev_dbg(ipu->dev, "IC_CMBP_2 = \t0x%08X\n", ipu_ic_read(ic, IC_CMBP_2)); dev_dbg(ipu->dev, "IC_IDMAC_1 = \t0x%08X\n", ipu_ic_read(ic, IC_IDMAC_1)); dev_dbg(ipu->dev, "IC_IDMAC_2 = \t0x%08X\n", ipu_ic_read(ic, IC_IDMAC_2)); dev_dbg(ipu->dev, "IC_IDMAC_3 = \t0x%08X\n", ipu_ic_read(ic, IC_IDMAC_3)); dev_dbg(ipu->dev, "IC_IDMAC_4 = \t0x%08X\n", ipu_ic_read(ic, IC_IDMAC_4)); } EXPORT_SYMBOL_GPL(ipu_ic_dump);