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drm/msm/hdmi: add hdmi hdcp support (V3)

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Add HDMI HDCP support including HDCP PartI/II/III authentication.
V1: Initial Change
V2: Address Bjorn&Rob's comments
    Refactor the authentication process to use single work instead
    of multiple work for different authentication stages.
V3: Update to align with qcom SCM api.

Signed-off-by: Jilai Wang <jilaiw@codeaurora.org>
Signed-off-by: Rob Clark <robdclark@gmail.com>
This commit is contained in:
jilai wang
2015-04-02 17:49:01 -04:00
committed by Rob Clark
parent 2d3584eb87
commit c6a57a50ad
8 changed files with 1523 additions and 8 deletions
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31
drivers/gpu/drm/msm/hdmi/hdmi.h
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@@ -37,6 +37,8 @@ struct hdmi_audio {
int rate;
};
struct hdmi_hdcp_ctrl;
struct hdmi {
struct drm_device *dev;
struct platform_device *pdev;
@@ -51,6 +53,8 @@ struct hdmi {
unsigned long int pixclock;
void __iomem *mmio;
void __iomem *qfprom_mmio;
phys_addr_t mmio_phy_addr;
struct regulator **hpd_regs;
struct regulator **pwr_regs;
@@ -68,12 +72,25 @@ struct hdmi {
bool hdmi_mode; /* are we in hdmi mode? */
int irq;
struct workqueue_struct *workq;
struct hdmi_hdcp_ctrl *hdcp_ctrl;
/*
* spinlock to protect registers shared by different execution
* REG_HDMI_CTRL
* REG_HDMI_DDC_ARBITRATION
* REG_HDMI_HDCP_INT_CTRL
* REG_HDMI_HPD_CTRL
*/
spinlock_t reg_lock;
};
/* platform config data (ie. from DT, or pdata) */
struct hdmi_platform_config {
struct hdmi_phy *(*phy_init)(struct hdmi *hdmi);
const char *mmio_name;
const char *qfprom_mmio_name;
/* regulators that need to be on for hpd: */
const char **hpd_reg_names;
@@ -109,6 +126,11 @@ static inline u32 hdmi_read(struct hdmi *hdmi, u32 reg)
return msm_readl(hdmi->mmio + reg);
}
static inline u32 hdmi_qfprom_read(struct hdmi *hdmi, u32 reg)
{
return msm_readl(hdmi->qfprom_mmio + reg);
}
/*
* The phy appears to be different, for example between 8960 and 8x60,
* so split the phy related functions out and load the correct one at
@@ -163,4 +185,13 @@ void hdmi_i2c_irq(struct i2c_adapter *i2c);
void hdmi_i2c_destroy(struct i2c_adapter *i2c);
struct i2c_adapter *hdmi_i2c_init(struct hdmi *hdmi);
/*
* hdcp
*/
struct hdmi_hdcp_ctrl *hdmi_hdcp_init(struct hdmi *hdmi);
void hdmi_hdcp_destroy(struct hdmi *hdmi);
void hdmi_hdcp_on(struct hdmi_hdcp_ctrl *hdcp_ctrl);
void hdmi_hdcp_off(struct hdmi_hdcp_ctrl *hdcp_ctrl);
void hdmi_hdcp_irq(struct hdmi_hdcp_ctrl *hdcp_ctrl);
#endif /* __HDMI_CONNECTOR_H__ */