mirror of
https://github.com/patjak/facetimehd.git
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118 lines
3.3 KiB
C
118 lines
3.3 KiB
C
/*
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* SPDX-License-Identifier: GPL-2.0-only
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*
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* FacetimeHD camera driver
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*
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* Copyright (C) 2014 Patrik Jakobsson <patrik.r.jakobsson@gmail.com>
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* 2016 Sven Schnelle <svens@stackframe.org>
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*
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*/
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#ifndef _FTHD_HW_H
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#define _FTHD_HW_H
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#include <linux/pci.h>
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/* Used after most PCI Link IO writes */
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static inline void fthd_hw_pci_post(struct fthd_private *dev_priv)
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{
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pci_write_config_dword(dev_priv->pdev, 0, 0x12345678);
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}
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#define FTHD_S2_REG_READ(offset) _FTHD_S2_REG_READ(dev_priv, (offset))
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#define FTHD_S2_REG_WRITE(val, offset) _FTHD_S2_REG_WRITE(dev_priv, (val), (offset))
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#define FTHD_S2_MEM_READ(offset) _FTHD_S2_MEM_READ(dev_priv, (offset))
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#define FTHD_S2_MEM_WRITE(val, offset) _FTHD_S2_MEM_WRITE(dev_priv, (val), (offset))
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#define FTHD_S2_MEMCPY_TOIO(offset, buf, len) _FTHD_S2_MEMCPY_TOIO(dev_priv, (buf), (offset), (len))
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#define FTHD_S2_MEMCPY_FROMIO(buf, offset, len) _FTHD_S2_MEMCPY_FROMIO(dev_priv, (buf), (offset), (len))
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#define FTHD_ISP_REG_READ(offset) _FTHD_ISP_REG_READ(dev_priv, (offset))
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#define FTHD_ISP_REG_WRITE(val, offset) _FTHD_ISP_REG_WRITE(dev_priv, (val), (offset))
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static inline u32 _FTHD_S2_REG_READ(struct fthd_private *dev_priv, u32 offset)
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{
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if (offset >= dev_priv->s2_io_len) {
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pr_err("S2 IO read out of range at %u\n", offset);
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return 0;
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}
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return ioread32(dev_priv->s2_io + offset);
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}
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static inline void _FTHD_S2_REG_WRITE(struct fthd_private *dev_priv, u32 val,
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u32 offset)
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{
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if (offset >= dev_priv->s2_io_len) {
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pr_err("S2 IO write out of range at %u\n", offset);
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return;
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}
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iowrite32(val, dev_priv->s2_io + offset);
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fthd_hw_pci_post(dev_priv);
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}
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static inline u32 _FTHD_S2_MEM_READ(struct fthd_private *dev_priv, u32 offset)
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{
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if (offset >= dev_priv->s2_mem_len) {
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pr_err("S2 MEM read out of range at %u\n", offset);
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return 0;
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}
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return ioread32(dev_priv->s2_mem + offset);
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}
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static inline void _FTHD_S2_MEM_WRITE(struct fthd_private *dev_priv, u32 val,
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u32 offset)
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{
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if (offset >= dev_priv->s2_mem_len) {
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pr_err("S2 MEM write out of range at %u\n", offset);
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return;
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}
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iowrite32(val, dev_priv->s2_mem + offset);
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}
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static inline void _FTHD_S2_MEMCPY_TOIO(struct fthd_private *dev_priv, const void *buf,
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u32 offset, int len)
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{
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memcpy_toio(dev_priv->s2_mem + offset, buf, len);
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}
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static inline void _FTHD_S2_MEMCPY_FROMIO(struct fthd_private *dev_priv, void *buf,
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u32 offset, int len)
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{
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memcpy_fromio(buf, dev_priv->s2_mem + offset, len);
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}
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static inline u32 _FTHD_ISP_REG_READ(struct fthd_private *dev_priv, u32 offset)
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{
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if (offset >= dev_priv->isp_io_len) {
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pr_err("ISP IO read out of range at %u\n", offset);
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return 0;
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}
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return ioread32(dev_priv->isp_io + offset);
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}
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static inline void _FTHD_ISP_REG_WRITE(struct fthd_private *dev_priv, u32 val,
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u32 offset)
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{
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if (offset >= dev_priv->isp_io_len) {
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pr_err("ISP IO write out of range at %u\n", offset);
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return;
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}
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iowrite32(val, dev_priv->isp_io + offset);
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fthd_hw_pci_post(dev_priv);
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}
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extern int fthd_irq_enable(struct fthd_private *dev_priv);
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extern int fthd_irq_disable(struct fthd_private *dev_priv);
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extern int fthd_hw_init(struct fthd_private *dev_priv);
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extern void fthd_hw_deinit(struct fthd_private *priv);
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extern void fthd_ddr_phy_save_regs(struct fthd_private *dev_priv);
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extern void fthd_ddr_phy_restore_regs(struct fthd_private *dev_priv);
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#endif
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