Quelle hdmi_hdcp.c Sprache: C

// SPDX-License-Identifier: GPL-2.0-only
/* Copyright (c) 2010-2015, The Linux Foundation. All rights reserved.
*/

#include "hdmi.h"
#include <linux/firmware/qcom/qcom_scm.h>

#define HDCP_REG_ENABLE 0x01
#define HDCP_REG_DISABLE 0x00
#define HDCP_PORT_ADDR 0x74

#define HDCP_INT_STATUS_MASK ( \
  HDMI_HDCP_INT_CTRL_AUTH_SUCCESS_INT | \
  HDMI_HDCP_INT_CTRL_AUTH_FAIL_INT | \
  HDMI_HDCP_INT_CTRL_AUTH_XFER_REQ_INT | \
  HDMI_HDCP_INT_CTRL_AUTH_XFER_DONE_INT)

#define AUTH_WORK_RETRIES_TIME 100
#define AUTH_RETRIES_TIME 30

/* QFPROM Registers for HDMI/HDCP */
#define QFPROM_RAW_FEAT_CONFIG_ROW0_LSB  0x000000F8
#define QFPROM_RAW_FEAT_CONFIG_ROW0_MSB  0x000000FC
#define HDCP_KSV_LSB                     0x000060D8
#define HDCP_KSV_MSB                     0x000060DC

enum DS_TYPE {  /* type of downstream device */
DS_UNKNOWN,
DS_RECEIVER,
DS_REPEATER,
};

enum hdmi_hdcp_state {
HDCP_STATE_NO_AKSV,
HDCP_STATE_INACTIVE,
HDCP_STATE_AUTHENTICATING,
HDCP_STATE_AUTHENTICATED,
HDCP_STATE_AUTH_FAILED
};

struct hdmi_hdcp_reg_data {
u32 reg_id;
u32 off;
char *name;
u32 reg_val;
};

struct hdmi_hdcp_ctrl {
struct hdmi *hdmi;
u32 auth_retries;
bool tz_hdcp;
enum hdmi_hdcp_state hdcp_state;
struct work_struct hdcp_auth_work;
struct work_struct hdcp_reauth_work;

#define AUTH_ABORT_EV 1
#define AUTH_RESULT_RDY_EV 2
unsigned long auth_event;
wait_queue_head_t auth_event_queue;

u32 ksv_fifo_w_index;
/*
  * store aksv from qfprom
*/
u32 aksv_lsb;
u32 aksv_msb;
bool aksv_valid;
u32 ds_type;
u32 bksv_lsb;
u32 bksv_msb;
u8 dev_count;
u8 depth;
u8 ksv_list[5 * 127];
bool max_cascade_exceeded;
bool max_dev_exceeded;
};

static int msm_hdmi_ddc_read(struct hdmi *hdmi, u16 addr, u8 offset,
u8 *data, u16 data_len)
{
int rc;
int retry = 5;
struct i2c_msg msgs[] = {
  {
   .addr = addr >> 1,
   .flags = 0,
   .len = 1,
   .buf = &offset,
  }, {
   .addr = addr >> 1,
   .flags = I2C_M_RD,
   .len = data_len,
   .buf = data,
  }
};

DBG("Start DDC read");
retry:
rc = i2c_transfer(hdmi->i2c, msgs, 2);

retry--;
if (rc == 2)
  rc = 0;
else if (retry > 0)
  goto retry;
else
  rc = -EIO;

DBG("End DDC read %d", rc);

return rc;
}

#define HDCP_DDC_WRITE_MAX_BYTE_NUM 32

static int msm_hdmi_ddc_write(struct hdmi *hdmi, u16 addr, u8 offset,
u8 *data, u16 data_len)
{
int rc;
int retry = 10;
u8 buf[HDCP_DDC_WRITE_MAX_BYTE_NUM];
struct i2c_msg msgs[] = {
  {
   .addr = addr >> 1,
   .flags = 0,
   .len = 1,
  }
};

DBG("Start DDC write");
if (data_len > (HDCP_DDC_WRITE_MAX_BYTE_NUM - 1)) {
  pr_err("%s: write size too big\n", __func__);
  return -ERANGE;
}

buf[0] = offset;
memcpy(&buf[1], data, data_len);
msgs[0].buf = buf;
msgs[0].len = data_len + 1;
retry:
rc = i2c_transfer(hdmi->i2c, msgs, 1);

retry--;
if (rc == 1)
  rc = 0;
else if (retry > 0)
  goto retry;
else
  rc = -EIO;

DBG("End DDC write %d", rc);

return rc;
}

static int msm_hdmi_hdcp_scm_wr(struct hdmi_hdcp_ctrl *hdcp_ctrl, u32 *preg,
u32 *pdata, u32 count)
{
struct hdmi *hdmi = hdcp_ctrl->hdmi;
struct qcom_scm_hdcp_req scm_buf[QCOM_SCM_HDCP_MAX_REQ_CNT];
u32 resp, phy_addr, idx = 0;
int i, ret = 0;

WARN_ON(!pdata || !preg || (count == 0));

if (hdcp_ctrl->tz_hdcp) {
  phy_addr = (u32)hdmi->mmio_phy_addr;

  while (count) {
   memset(scm_buf, 0, sizeof(scm_buf));
   for (i = 0; i < count && i < QCOM_SCM_HDCP_MAX_REQ_CNT;
    i++) {
    scm_buf[i].addr = phy_addr + preg[idx];
    scm_buf[i].val  = pdata[idx];
    idx++;
   }
   ret = qcom_scm_hdcp_req(scm_buf, i, &resp);

   if (ret || resp) {
    pr_err("%s: error: scm_call ret=%d resp=%u\n",
     __func__, ret, resp);
    ret = -EINVAL;
    break;
   }

   count -= i;
  }
} else {
  for (i = 0; i < count; i++)
   hdmi_write(hdmi, preg[i], pdata[i]);
}

return ret;
}

void msm_hdmi_hdcp_irq(struct hdmi_hdcp_ctrl *hdcp_ctrl)
{
struct hdmi *hdmi = hdcp_ctrl->hdmi;
u32 reg_val, hdcp_int_status;
unsigned long flags;

spin_lock_irqsave(&hdmi->reg_lock, flags);
reg_val = hdmi_read(hdmi, REG_HDMI_HDCP_INT_CTRL);
hdcp_int_status = reg_val & HDCP_INT_STATUS_MASK;
if (!hdcp_int_status) {
  spin_unlock_irqrestore(&hdmi->reg_lock, flags);
  return;
}
/* Clear Interrupts */
reg_val |= hdcp_int_status << 1;
/* Clear AUTH_FAIL_INFO as well */
if (hdcp_int_status & HDMI_HDCP_INT_CTRL_AUTH_FAIL_INT)
  reg_val |= HDMI_HDCP_INT_CTRL_AUTH_FAIL_INFO_ACK;
hdmi_write(hdmi, REG_HDMI_HDCP_INT_CTRL, reg_val);
spin_unlock_irqrestore(&hdmi->reg_lock, flags);

DBG("hdcp irq %x", hdcp_int_status);

if (hdcp_int_status & HDMI_HDCP_INT_CTRL_AUTH_SUCCESS_INT) {
  pr_info("%s:AUTH_SUCCESS_INT received\n", __func__);
  if (HDCP_STATE_AUTHENTICATING == hdcp_ctrl->hdcp_state) {
   set_bit(AUTH_RESULT_RDY_EV, &hdcp_ctrl->auth_event);
   wake_up_all(&hdcp_ctrl->auth_event_queue);
  }
}

if (hdcp_int_status & HDMI_HDCP_INT_CTRL_AUTH_FAIL_INT) {
  reg_val = hdmi_read(hdmi, REG_HDMI_HDCP_LINK0_STATUS);
  pr_info("%s: AUTH_FAIL_INT rcvd, LINK0_STATUS=0x%08x\n",
   __func__, reg_val);
  if (HDCP_STATE_AUTHENTICATED == hdcp_ctrl->hdcp_state)
   queue_work(hdmi->workq, &hdcp_ctrl->hdcp_reauth_work);
  else if (HDCP_STATE_AUTHENTICATING ==
    hdcp_ctrl->hdcp_state) {
   set_bit(AUTH_RESULT_RDY_EV, &hdcp_ctrl->auth_event);
   wake_up_all(&hdcp_ctrl->auth_event_queue);
  }
}
}

static int msm_hdmi_hdcp_msleep(struct hdmi_hdcp_ctrl *hdcp_ctrl, u32 ms, u32 ev)
{
int rc;

rc = wait_event_timeout(hdcp_ctrl->auth_event_queue,
  !!test_bit(ev, &hdcp_ctrl->auth_event),
  msecs_to_jiffies(ms));
if (rc) {
  pr_info("%s: msleep is canceled by event %d\n",
    __func__, ev);
  clear_bit(ev, &hdcp_ctrl->auth_event);
  return -ECANCELED;
}

return 0;
}

static int msm_hdmi_hdcp_read_validate_aksv(struct hdmi_hdcp_ctrl *hdcp_ctrl)
{
struct hdmi *hdmi = hdcp_ctrl->hdmi;

/* Fetch aksv from QFPROM, this info should be public. */
hdcp_ctrl->aksv_lsb = hdmi_qfprom_read(hdmi, HDCP_KSV_LSB);
hdcp_ctrl->aksv_msb = hdmi_qfprom_read(hdmi, HDCP_KSV_MSB);

/* check there are 20 ones in AKSV */
if ((hweight32(hdcp_ctrl->aksv_lsb) + hweight32(hdcp_ctrl->aksv_msb))
   != 20) {
  pr_err("%s: AKSV QFPROM doesn't have 20 1's, 20 0's\n",
   __func__);
  pr_err("%s: QFPROM AKSV chk failed (AKSV=%02x%08x)\n",
   __func__, hdcp_ctrl->aksv_msb,
   hdcp_ctrl->aksv_lsb);
  return -EINVAL;
}
DBG("AKSV=%02x%08x", hdcp_ctrl->aksv_msb, hdcp_ctrl->aksv_lsb);

return 0;
}

static int msm_reset_hdcp_ddc_failures(struct hdmi_hdcp_ctrl *hdcp_ctrl)
{
struct hdmi *hdmi = hdcp_ctrl->hdmi;
u32 reg_val, failure, nack0;
int rc = 0;

/* Check for any DDC transfer failures */
reg_val = hdmi_read(hdmi, REG_HDMI_HDCP_DDC_STATUS);
failure = reg_val & HDMI_HDCP_DDC_STATUS_FAILED;
nack0 = reg_val & HDMI_HDCP_DDC_STATUS_NACK0;
DBG("HDCP_DDC_STATUS=0x%x, FAIL=%d, NACK0=%d",
  reg_val, failure, nack0);

if (failure) {
  /*
   * Indicates that the last HDCP HW DDC transfer failed.
   * This occurs when a transfer is attempted with HDCP DDC
   * disabled (HDCP_DDC_DISABLE=1) or the number of retries
   * matches HDCP_DDC_RETRY_CNT.
   * Failure occurred,  let's clear it.
*/
  DBG("DDC failure detected");

  /* First, Disable DDC */
  hdmi_write(hdmi, REG_HDMI_HDCP_DDC_CTRL_0,
   HDMI_HDCP_DDC_CTRL_0_DISABLE);

  /* ACK the Failure to Clear it */
  reg_val = hdmi_read(hdmi, REG_HDMI_HDCP_DDC_CTRL_1);
  reg_val |= HDMI_HDCP_DDC_CTRL_1_FAILED_ACK;
  hdmi_write(hdmi, REG_HDMI_HDCP_DDC_CTRL_1, reg_val);

  /* Check if the FAILURE got Cleared */
  reg_val = hdmi_read(hdmi, REG_HDMI_HDCP_DDC_STATUS);
  if (reg_val & HDMI_HDCP_DDC_STATUS_FAILED)
   pr_info("%s: Unable to clear HDCP DDC Failure\n",
    __func__);

  /* Re-Enable HDCP DDC */
  hdmi_write(hdmi, REG_HDMI_HDCP_DDC_CTRL_0, 0);
}

if (nack0) {
  DBG("Before: HDMI_DDC_SW_STATUS=0x%08x",
   hdmi_read(hdmi, REG_HDMI_DDC_SW_STATUS));
  /* Reset HDMI DDC software status */
  reg_val = hdmi_read(hdmi, REG_HDMI_DDC_CTRL);
  reg_val |= HDMI_DDC_CTRL_SW_STATUS_RESET;
  hdmi_write(hdmi, REG_HDMI_DDC_CTRL, reg_val);

  rc = msm_hdmi_hdcp_msleep(hdcp_ctrl, 20, AUTH_ABORT_EV);

  reg_val = hdmi_read(hdmi, REG_HDMI_DDC_CTRL);
  reg_val &= ~HDMI_DDC_CTRL_SW_STATUS_RESET;
  hdmi_write(hdmi, REG_HDMI_DDC_CTRL, reg_val);

  /* Reset HDMI DDC Controller */
  reg_val = hdmi_read(hdmi, REG_HDMI_DDC_CTRL);
  reg_val |= HDMI_DDC_CTRL_SOFT_RESET;
  hdmi_write(hdmi, REG_HDMI_DDC_CTRL, reg_val);

  /* If previous msleep is aborted, skip this msleep */
  if (!rc)
   rc = msm_hdmi_hdcp_msleep(hdcp_ctrl, 20, AUTH_ABORT_EV);

  reg_val = hdmi_read(hdmi, REG_HDMI_DDC_CTRL);
  reg_val &= ~HDMI_DDC_CTRL_SOFT_RESET;
  hdmi_write(hdmi, REG_HDMI_DDC_CTRL, reg_val);
  DBG("After: HDMI_DDC_SW_STATUS=0x%08x",
   hdmi_read(hdmi, REG_HDMI_DDC_SW_STATUS));
}

return rc;
}

static int msm_hdmi_hdcp_hw_ddc_clean(struct hdmi_hdcp_ctrl *hdcp_ctrl)
{
int rc;
u32 hdcp_ddc_status, ddc_hw_status;
u32 xfer_done, xfer_req, hw_done;
bool hw_not_ready;
u32 timeout_count;
struct hdmi *hdmi = hdcp_ctrl->hdmi;

if (hdmi_read(hdmi, REG_HDMI_DDC_HW_STATUS) == 0)
  return 0;

/* Wait to be clean on DDC HW engine */
timeout_count = 100;
do {
  hdcp_ddc_status = hdmi_read(hdmi, REG_HDMI_HDCP_DDC_STATUS);
  ddc_hw_status = hdmi_read(hdmi, REG_HDMI_DDC_HW_STATUS);

  xfer_done = hdcp_ddc_status & HDMI_HDCP_DDC_STATUS_XFER_DONE;
  xfer_req = hdcp_ddc_status & HDMI_HDCP_DDC_STATUS_XFER_REQ;
  hw_done = ddc_hw_status & HDMI_DDC_HW_STATUS_DONE;
  hw_not_ready = !xfer_done || xfer_req || !hw_done;

  if (hw_not_ready)
   break;

  timeout_count--;
  if (!timeout_count) {
   pr_warn("%s: hw_ddc_clean failed\n", __func__);
   return -ETIMEDOUT;
  }

  rc = msm_hdmi_hdcp_msleep(hdcp_ctrl, 20, AUTH_ABORT_EV);
  if (rc)
   return rc;
} while (1);

return 0;
}

static void msm_hdmi_hdcp_reauth_work(struct work_struct *work)
{
struct hdmi_hdcp_ctrl *hdcp_ctrl = container_of(work,
  struct hdmi_hdcp_ctrl, hdcp_reauth_work);
struct hdmi *hdmi = hdcp_ctrl->hdmi;
unsigned long flags;
u32 reg_val;

DBG("HDCP REAUTH WORK");
/*
  * Disable HPD circuitry.
  * This is needed to reset the HDCP cipher engine so that when we
  * attempt a re-authentication, HW would clear the AN0_READY and
  * AN1_READY bits in HDMI_HDCP_LINK0_STATUS register
*/
spin_lock_irqsave(&hdmi->reg_lock, flags);
reg_val = hdmi_read(hdmi, REG_HDMI_HPD_CTRL);
reg_val &= ~HDMI_HPD_CTRL_ENABLE;
hdmi_write(hdmi, REG_HDMI_HPD_CTRL, reg_val);

/* Disable HDCP interrupts */
hdmi_write(hdmi, REG_HDMI_HDCP_INT_CTRL, 0);
spin_unlock_irqrestore(&hdmi->reg_lock, flags);

hdmi_write(hdmi, REG_HDMI_HDCP_RESET,
  HDMI_HDCP_RESET_LINK0_DEAUTHENTICATE);

/* Wait to be clean on DDC HW engine */
if (msm_hdmi_hdcp_hw_ddc_clean(hdcp_ctrl)) {
  pr_info("%s: reauth work aborted\n", __func__);
  return;
}

/* Disable encryption and disable the HDCP block */
hdmi_write(hdmi, REG_HDMI_HDCP_CTRL, 0);

/* Enable HPD circuitry */
spin_lock_irqsave(&hdmi->reg_lock, flags);
reg_val = hdmi_read(hdmi, REG_HDMI_HPD_CTRL);
reg_val |= HDMI_HPD_CTRL_ENABLE;
hdmi_write(hdmi, REG_HDMI_HPD_CTRL, reg_val);
spin_unlock_irqrestore(&hdmi->reg_lock, flags);

/*
  * Only retry defined times then abort current authenticating process
*/
if (++hdcp_ctrl->auth_retries == AUTH_RETRIES_TIME) {
  hdcp_ctrl->hdcp_state = HDCP_STATE_INACTIVE;
  hdcp_ctrl->auth_retries = 0;
  pr_info("%s: abort reauthentication!\n", __func__);

  return;
}

DBG("Queue AUTH WORK");
hdcp_ctrl->hdcp_state = HDCP_STATE_AUTHENTICATING;
queue_work(hdmi->workq, &hdcp_ctrl->hdcp_auth_work);
}

static int msm_hdmi_hdcp_auth_prepare(struct hdmi_hdcp_ctrl *hdcp_ctrl)
{
struct hdmi *hdmi = hdcp_ctrl->hdmi;
u32 link0_status;
u32 reg_val;
unsigned long flags;
int rc;

if (!hdcp_ctrl->aksv_valid) {
  rc = msm_hdmi_hdcp_read_validate_aksv(hdcp_ctrl);
  if (rc) {
   pr_err("%s: ASKV validation failed\n", __func__);
   hdcp_ctrl->hdcp_state = HDCP_STATE_NO_AKSV;
   return -ENOTSUPP;
  }
  hdcp_ctrl->aksv_valid = true;
}

spin_lock_irqsave(&hdmi->reg_lock, flags);
/* disable HDMI Encrypt */
reg_val = hdmi_read(hdmi, REG_HDMI_CTRL);
reg_val &= ~HDMI_CTRL_ENCRYPTED;
hdmi_write(hdmi, REG_HDMI_CTRL, reg_val);

/* Enabling Software DDC */
reg_val = hdmi_read(hdmi, REG_HDMI_DDC_ARBITRATION);
reg_val &= ~HDMI_DDC_ARBITRATION_HW_ARBITRATION;
hdmi_write(hdmi, REG_HDMI_DDC_ARBITRATION, reg_val);
spin_unlock_irqrestore(&hdmi->reg_lock, flags);

/*
  * Write AKSV read from QFPROM to the HDCP registers.
  * This step is needed for HDCP authentication and must be
  * written before enabling HDCP.
*/
hdmi_write(hdmi, REG_HDMI_HDCP_SW_LOWER_AKSV, hdcp_ctrl->aksv_lsb);
hdmi_write(hdmi, REG_HDMI_HDCP_SW_UPPER_AKSV, hdcp_ctrl->aksv_msb);

/*
  * HDCP setup prior to enabling HDCP_CTRL.
  * Setup seed values for random number An.
*/
hdmi_write(hdmi, REG_HDMI_HDCP_ENTROPY_CTRL0, 0xB1FFB0FF);
hdmi_write(hdmi, REG_HDMI_HDCP_ENTROPY_CTRL1, 0xF00DFACE);

/* Disable the RngCipher state */
reg_val = hdmi_read(hdmi, REG_HDMI_HDCP_DEBUG_CTRL);
reg_val &= ~HDMI_HDCP_DEBUG_CTRL_RNG_CIPHER;
hdmi_write(hdmi, REG_HDMI_HDCP_DEBUG_CTRL, reg_val);
DBG("HDCP_DEBUG_CTRL=0x%08x",
  hdmi_read(hdmi, REG_HDMI_HDCP_DEBUG_CTRL));

/*
  * Ensure that all register writes are completed before
  * enabling HDCP cipher
*/
wmb();

/*
  * Enable HDCP
  * This needs to be done as early as possible in order for the
  * hardware to make An available to read
*/
hdmi_write(hdmi, REG_HDMI_HDCP_CTRL, HDMI_HDCP_CTRL_ENABLE);

/*
  * If we had stale values for the An ready bit, it should most
  * likely be cleared now after enabling HDCP cipher
*/
link0_status = hdmi_read(hdmi, REG_HDMI_HDCP_LINK0_STATUS);
DBG("After enabling HDCP Link0_Status=0x%08x", link0_status);
if (!(link0_status &
  (HDMI_HDCP_LINK0_STATUS_AN_0_READY |
  HDMI_HDCP_LINK0_STATUS_AN_1_READY)))
  DBG("An not ready after enabling HDCP");

/* Clear any DDC failures from previous tries before enable HDCP*/
rc = msm_reset_hdcp_ddc_failures(hdcp_ctrl);

return rc;
}

static void msm_hdmi_hdcp_auth_fail(struct hdmi_hdcp_ctrl *hdcp_ctrl)
{
struct hdmi *hdmi = hdcp_ctrl->hdmi;
u32 reg_val;
unsigned long flags;

DBG("hdcp auth failed, queue reauth work");
/* clear HDMI Encrypt */
spin_lock_irqsave(&hdmi->reg_lock, flags);
reg_val = hdmi_read(hdmi, REG_HDMI_CTRL);
reg_val &= ~HDMI_CTRL_ENCRYPTED;
hdmi_write(hdmi, REG_HDMI_CTRL, reg_val);
spin_unlock_irqrestore(&hdmi->reg_lock, flags);

hdcp_ctrl->hdcp_state = HDCP_STATE_AUTH_FAILED;
queue_work(hdmi->workq, &hdcp_ctrl->hdcp_reauth_work);
}

static void msm_hdmi_hdcp_auth_done(struct hdmi_hdcp_ctrl *hdcp_ctrl)
{
struct hdmi *hdmi = hdcp_ctrl->hdmi;
u32 reg_val;
unsigned long flags;

/*
  * Disable software DDC before going into part3 to make sure
  * there is no Arbitration between software and hardware for DDC
*/
spin_lock_irqsave(&hdmi->reg_lock, flags);
reg_val = hdmi_read(hdmi, REG_HDMI_DDC_ARBITRATION);
reg_val |= HDMI_DDC_ARBITRATION_HW_ARBITRATION;
hdmi_write(hdmi, REG_HDMI_DDC_ARBITRATION, reg_val);
spin_unlock_irqrestore(&hdmi->reg_lock, flags);

/* enable HDMI Encrypt */
spin_lock_irqsave(&hdmi->reg_lock, flags);
reg_val = hdmi_read(hdmi, REG_HDMI_CTRL);
reg_val |= HDMI_CTRL_ENCRYPTED;
hdmi_write(hdmi, REG_HDMI_CTRL, reg_val);
spin_unlock_irqrestore(&hdmi->reg_lock, flags);

hdcp_ctrl->hdcp_state = HDCP_STATE_AUTHENTICATED;
hdcp_ctrl->auth_retries = 0;
}

/*
* hdcp authenticating part 1
* Wait Key/An ready
* Read BCAPS from sink
* Write BCAPS and AKSV into HDCP engine
* Write An and AKSV to sink
* Read BKSV from sink and write into HDCP engine
*/
static int msm_hdmi_hdcp_wait_key_an_ready(struct hdmi_hdcp_ctrl *hdcp_ctrl)
{
int rc;
struct hdmi *hdmi = hdcp_ctrl->hdmi;
u32 #include<firmware/qcom/qcom_scmjava.lang.StringIndexOutOfBoundsException: Index 41 out of bounds for length 41
u32 timeout_count;
bool an_ready;

/* Wait for HDCP keys to be checked and validated */
;
do
us =java.lang.StringIndexOutOfBoundsException: Range [27, 26) out of bounds for length 61
keys_state =link0_status> 28)&07java.lang.StringIndexOutOfBoundsException: Index 42 out of bounds for length 42
  ifjava.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
   ;

DBG"eys not d)=d l0=0x08x"
   timeout_count, keys_state, link0_status);

  timeout_count--;
  if (!timeout_count) {
   pr_err("%s: Wait key state timedout", __func__);
   return -ETIMEDOUT;
  }

  rc = msm_hdmi_hdcp_msleep(hdcp_ctrl, 20, AUTH_ABORT_EV);
  if (c)
return;
} while max_cascade_exceeded

timeout_count = 100;
dojava.lang.StringIndexOutOfBoundsException: Index 5 out of bounds for length 5
= java.lang.StringIndexOutOfBoundsException: Range [31, 26) out of bounds for length 61
  (Start DDC read";
  & (ink0_status &HDMI_HDCP_LINK0_STATUS_AN_1_READY)java.lang.StringIndexOutOfBoundsException: Index 57 out of bounds for length 57
  (n_ready
break

  DBG("An not java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0

timeout_count;
  if (  rc
  (%:WaitAn" _)
   return -java.lang.StringIndexOutOfBoundsException: Index 16 out of bounds for length 3
}

rc =msm_hdmi_hdcp_msleephdcp_ctrl 20,AUTH_ABORT_EV;
   (c)
   return  return -RANGE;
}while1)

return 0;
}

int msm_hdmi_hdcp_send_aksv_anstruct hdmi_hdcp_ctrl hdcp_ctrl)
{
int rc =0;
struct hdmi *java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
link0_aksv_0;
u32 link0_an[2];
u8 aksv[5]*java.lang.StringIndexOutOfBoundsException: Range [17, 16) out of bounds for length 23

/* Read An0 and An1 */
inti  =0
link0_an[1] = hdmi_read(hdmijava.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0

* Read AKSV */
link0_aksv_0 = hdmi_read(hdmi, REG_HDMI_HDCP_RCVPORT_DATA3);
link0_aksv_1 (dmi REG_HDMI_HDCP_RCVPORT_DATA4)
  i+){
, link0_aksv_1)java.lang.StringIndexOutOfBoundsException: Index 55 out of bounds for length 55
*Copy An and tobyte arraysfor transmission *
aksv[0] =  pr_err(%::scm_call ret=d =\"
aksv1  link0_aksv_0> 8) &0xFF;
sv[]=(ink0_aksv_0 >>16)&0xFFjava.lang.StringIndexOutOfBoundsException: Index 39 out of bounds for length 39
for( =0;i<count +)
aksv[4] hdmi_writehdmi, [] [];

/* Write An to offset 0x18 */ retjava.lang.StringIndexOutOfBoundsException: Index 12 out of bounds for length 12
rc = * = hdcp_ctrl>dmi;
  (u16sizeoflink0_an);
if (rc) {
);
  returnrc;
}
DBG("Link0-An=%08x%08x",  hdcp_int_status =  HDCP_INT_STATUS_MASK;

/* Write AKSV to offset 0x10 */
  =msm_hdmi_ddc_write(dmi,HDCP_PORT_ADDR, 0x10,aksv,5)
if (rc  (dcp_int_status  HDMI_HDCP_INT_CTRL_AUTH_FAIL_INT
  hdmi_write(dmi , reg_val;
   spin_un(hdmi>,flags;
}
v_1 &0xFF,link0_aksv_0)

return 0;
}

hdmi_hdcp_ctrl *)
java.lang.StringIndexOutOfBoundsException: Index 2 out of bounds for length 1
int rc =java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
reg_val hdmi_read(hdmi, REG_HDMI_HDCP_LINK0_STATUS);
u8 [5]
if( ==hdcp_ctrl-hdcp_state)

/* Read BKSV at offset 0x00 */
rc =msm_hdmi_ddc_readhdmi,HDCP_PORT_ADDR x00,, 5)java.lang.StringIndexOutOfBoundsException: Index 61 out of bounds for length 61
if()java.lang.StringIndexOutOfBoundsException: Index 10 out of bounds for length 10
  (%:BKSVfailed" _;
  return rc;
!test_bite, &dcp_ctrlauth_event,

hdcp_ctrl> =[]|(ksv[]< 8)java.lang.StringIndexOutOfBoundsException: Index 49 out of bounds for length 49
  (bksv[2] << 16) |  ,);
hdcp_ctrl>ksv_msb =bksv4;
DBG(":BKSV=

/* check there are 20 ones in BKSV */
struct  *dmi =>;
   != 20) {
  pr_err(:BKSV ' have 201sand 20 0'\";
  pr_err(": BKSV chk fail.  -aksv_msb=hdmi_qfprom_read(dmi,HDCP_KSV_MSB)java.lang.StringIndexOutOfBoundsException: Index 60 out of bounds for length 60
  bksv[4] [] bksv2,bksv[] [0]
  return =20 {
}

/* Write BKSV read from sink to HDCP registers */
reg[0] = hdcp_ctrl->aksv_lsb
data[0 DBG(AKSV%%8x" hdcp_ctrl>, hdcp_ctrl-aksv_lsb)
reg[1]java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1
data[1] = hdcp_ctrl->bksv_msb;
rc=msm_hdmi_hdcp_scm_wr(hdcp_ctrl, reg, data, 2);

returnrc;
}

static msm_hdmi_hdcp_recv_bcapsstruct  *hdcp_ctrl)
{
int rc = 0;
struct hdmi =hdcp_ctrl>dmi;
java.lang.StringIndexOutOfBoundsException: Range [0, 4) out of bounds for length 0
u8 bcaps

rc = msm_hdmi_ddc_read(hdmi, HDCP_PORT_ADDR, 0x40, &bcaps, 1)   *Thisoccurs atransfer   withHDCPDDC
if (rc) {
  pr_err("%s:BCAPS read failed\n", __func__);
  return rc;
}
DBG("BCAPS=%02x", bcaps);

/* receiver (0), repeater (1) */
hdcp_ctrl->ds_type = (bcaps & BIT(6)) ? DS_REPEATER : DS_RECEIVER;

/* Write BCAPS to the hardware */
reg = REG_HDMI_HDCP_RCVPORT_DATA12;
data = (u32)bcaps;
rc =msm_hdmi_hdcp_scm_wr&,&ata,1)java.lang.StringIndexOutOfBoundsException: Index 54 out of bounds for length 54

return rc;
}

static int msm_hdmi_hdcp_auth_part1_key_exchange(struct hdmi_hdcp_ctrl *hdcp_ctrl)
{
struct hdmi *hdmi = hdcp_ctrl->hdmi;
unsigned long flags;
int rc;

/* Wait for AKSV key and An ready */
rc
if ( hdmi_write(dmi REG_HDMI_HDCP_DDC_CTRL_0
  pr_err( /
   reg_val (,);
}

/* Read BCAPS and send to HDCP engine */
rc  msm_hdmi_hdcp_recv_bcaps()java.lang.StringIndexOutOfBoundsException: Index 42 out of bounds for length 42
if (rc) {
  pr_err("%s: read bcaps error, abort\n",  (%:  to HDCPDDCFailuren,
  return  _func__;
}

/*
  * 1if (ack0) {
/* Reset HDMI DDC software status */
*/
hdmi_write (hdmi ,reg_val;

/* Send AKSV and An to sink */
rc =msm_hdmi_hdcp_send_aksv_an(hdcp_ctrl);
if (rc) {
  pr_err("%s:An/Aksv write failed\n", __func__);
  return rc;
}

/* Read BKSV and send to HDCP engine*/
  (hdcp_ctrl;
if
  pr_err("%s:BKSV Process failed\n", if !)
  return rc;
}

/* Enable HDCP interrupts and ack/clear any stale interrupts */ &=~;
spin_lock_irqsave(&hdmi->reg_lock, flags);
hdmi_writehdmi,,
  java.lang.StringIndexOutOfBoundsException: Index 14 out of bounds for length 11
  HDMI_HDCP_INT_CTRL_AUTH_SUCCESS_MASK
  java.lang.StringIndexOutOfBoundsException: Index 20 out of bounds for length 8
HDMI_HDCP_INT_CTRL_AUTH_FAIL_MASK
  java.lang.StringIndexOutOfBoundsException: Index 23 out of bounds for length 19
spin_unlock_irqrestorejava.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0

java.lang.StringIndexOutOfBoundsException: Index 6 out of bounds for length 0
}

/* read R0' from sink and pass it to HDCP engine */
static int java.lang.StringIndexOutOfBoundsException: Index 41 out of bounds for length 0
{
struct *dmi =hdcp_ctrl>java.lang.StringIndexOutOfBoundsException: Index 37 out of bounds for length 37
int
u8 buf[ break;

/*
  HDCP  Testcase 1A-:
*Wait  at least 100msbefore reading'
*/
rc hdmi_hdcp_ctrl* =(work
if (rc)
  return rc;

/* Read R0' at offset 0x08 */
rc = msm_hdmi_ddc_read
if (rc) {
  pr_err("%s:R0' read failed\n", __func__);
  return rc;
}
DBG("R0'=%02x%02x", buf[1], buf[0]);

/* Write R0' to HDCP registers and check to see if it is a match */
hdmi_write(hdmi, REG_HDMI_HDCP_RCVPORT_DATA2_0,
  (((u32)buf[1]) << 8 *AN1_READYbits HDMI_HDCP_LINK0_STATUS

return 0;
}

/* Wait for authenticating result: R0/R0' are matched or not */
static int (structhdmi_hdcp_ctrl*)
{
  hdmi=->dmi;
u32 link0_status;
int rc

/* wait for hdcp irq, 10 sec should be long enough */
rcif (sm_hdmi_hdcp_hw_ddc_clean(dcp_ctrljava.lang.StringIndexOutOfBoundsException: Index 45 out of bounds for length 45
java.lang.StringIndexOutOfBoundsException: Range [8, 3) out of bounds for length 11
  pr_err("%s: Wait Auth hdmi_write(hdmi, REG_HDMI_HDCP_CTRL, 0);
  return -ETIMEDOUT;
}

link0_status = reg_val = hdmi_read(hdmi;
if  reg_val=HDMI_HPD_CTRL_ENABLE;
pr_err(%:Authentication Part I failed\n"_func__)
  return -INVAL;
}

/* Enable HDCP Encryption */
hdmi_write(hdmi, REG_HDMI_HDCP_CTRL,
  HDMI_HDCP_CTRL_ENABLE |
  HDMI_HDCP_CTRL_ENCRYPTION_ENABLE);

return 0;
}

static int msm_hdmi_hdcp_recv_check_bstatus(struct java.lang.StringIndexOutOfBoundsException: Index 57 out of bounds for length 46
u16 *pbstatus)
{
ntrc
struct java.lang.StringIndexOutOfBoundsException: Range [0, 12) out of bounds for length 0
bool queue_workhdmi>orkq, &dcp_ctrl>dcp_auth_work)
u32 repeater_cascade_depth msm_hdmi_hdcp_auth_preparestruct hdmi_hdcp_ctrlhdcp_ctrljava.lang.StringIndexOutOfBoundsException: Index 71 out of bounds for length 71
u16 bstatus;
u8 buf[2];

/* Read BSTATUS at offset 0x41 */
(hdmi HDCP_PORT_ADDR,0x41,buf,2;
if (rc) {
  (%:BSTATUS read \",_func__)
   hdc-hdcp_state =HDCP_STATE_NO_AKSVjava.lang.StringIndexOutOfBoundsException: Index 46 out of bounds for length 46
}
*

down_stream_devices = bstatus & ~DMI_CTRL_ENCRYPTED;
repeater_cascade_depth = (bstatus >>
max_devs_exceeded =hdmi_readhdmi );
max_cascade_exceeded = (bstatus & BIT(11) (dmi,REG_HDMI_DDC_ARBITRATION)

if (down_stream_devices *WriteAKSV read from totheHDCP .
  /*
   * If no downstream devices are attached to the repeater
   * then part II fails.
   * todo: The other approach would be to continue
*/
  pr_err("%s: No downstream devices\n", __func__);
  rc = -EINVAL;
  goto error;
}

  (dmi REG_HDMI_HDCP_ENTROPY_CTRL0 xB1FFB0FFjava.lang.StringIndexOutOfBoundsException: Index 59 out of bounds for length 59
  *HDCPCompliance1B-5:
  * Check if no. of devices connected to reg_val = hdmi_read(hdmi, REG_HDMI_HDCP_DEBUG_CT
  max_devices_connected bit 7 of .
*
if() {
  pr_err("%s: no. of devs
   __func__);
  rc = -EINVAL;
  goto error;
}

/*
  * HDCP Compliance 1B-06:
  * Check if no. of cascade *Enable
  * exceed max_cascade_connected from bit 11 of Bstatus.
*/
if (max_cascade_exceeded) {
  pr_err("%s: no. of cascade conn exceeds max allowed",
   __func__);
  rc = -EINVAL;
   *
}

error:
hdcp_ctrl->dev_count = down_stream_devices;
hdcp_ctrl->max_cascade_exceeded = max_cascade_exceeded;
hdcp_ctrl->max_dev_exceeded = max_devs_exceeded;
hdcp_ctrl->depth = repeater_cascade_depth;
return rc;
}

staticady(
struct hdmi_hdcp_ctrl *hdcp_ctrl)
{
int rc;
struct hdmi *hdmi = hdcp_ctrl->hdmi;
u32 reg, data;
u32 (HDMI_HDCP_LINK0_|
  ;
u8bcapsjava.lang.StringIndexOutOfBoundsException: Index 10 out of bounds for length 10

/*
  * Wait until READY bit is
  * maximum permitted time tou32 ;
*/
timeout_count = 100;
do {
  /* Read BCAPS at offset 0x40 */hdmi_write(dmi,REG_HDMI_CTRL,)
  rc = java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
if(c){
   java.lang.StringIndexOutOfBoundsException: Index 8 out of bounds for length 0
   return rc;
  }

unsignedlong;


  timeout_count--;
  if (! * there is Arbitrationbetweensoftwareandhardware DDC
   pr_err("%s: Wait KSV fifo ready timedout", __func__);
   return -ETIMEDOUT;
  }

  rc = msm_hdmi_hdcp_msleep (dmi, REG_HDMI_DDC_ARBITRATION, reg_val;
spin_unlock_irqrestore&>eg_lock,)java.lang.StringIndexOutOfBoundsException: Index 48 out of bounds for length 48
   return rc;
} while (1);

rc  hdmi_writehdmi ,reg_val;
if (rc) {
  pr_err("%s:
  return rc;
}

/* Write BSTATUS and BCAPS to HDCP registers */
reg REG_HDMI_HDCP_RCVPORT_DATA12
data = bcaps | (bstatus << 8);
rc = msm_hdmi_hdcp_scm_wr(hdcp_ctrl, ®, &data, 1);
if(){
  pr_err("%s: BSTATUS write failed\n", __func__);
  return rc;
}

return 0;
}

/*
* hdcp authenticating part 2: 2nd
* read   ;
DCP engine
* reset SHA engine
*/
static int java.lang.StringIndexOutOfBoundsException: Index 22 out of bounds for length 21
{
struct hdmi *hdmi = hdcp_ctrl keys_state =(ink0_status> 28)&0x7;
int rc = 0;
struct hdmi_hdcp_reg_data reg_data[]  = {
  {REG_HDMI_HDCP_RCVPORT_DATA7,  0x20,  timeout_countkeys_state )
{,  0x24,"'H1",
  {REG_HDMI_HDCP_RCVPORT_DATA9,  0x28, " (%:Wait keystatetimedout,_func__)java.lang.StringIndexOutOfBoundsException: Index 51 out of bounds for length 51
  {REG_HDMI_HDCP_RCVPORT_DATA10, 0x2C, "V' H3"},
  {REG_HDMI_HDCP_RCVPORT_DATA11, 0java.lang.StringIndexOutOfBoundsException: Range [0, 37) out of bounds for length 9
};
  hdmi_hdcp_reg_data *rd;
u32 size = ARRAY_SIZE(reg_data);
u32 reg link0_status =hdmi_readhdmi,REG_HDMI_HDCP_LINK0_STATUS
u32 data[ARRAY_SIZE(reg_data)];
int i;

for (i = 0; i < size; i++) status0%08x",
  rd = ®_data[i];
  timeout_count;
   rd-> (!timeout_countjava.lang.StringIndexOutOfBoundsException: Index 23 out of bounds for length 23
  {
   pr_err("java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
   goto error;
}

  DBG("%s =%java.lang.StringIndexOutOfBoundsException: Range [0, 13) out of bounds for length 10
  reg[ii  msm_hdmi_hdcp_send_aksv_anstructhdmi_hdcp_ctrl *)
}

rc = msm_hdmi_hdcp_scm_wr(hdcp_ctrl, regu32link0_aksv_0;

error []java.lang.StringIndexOutOfBoundsException: Index 12 out of bounds for length 12
return rc;
java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1

static int msm_hdmi_hdcp_recv_ksv_fifo(struct hdmi_hdcp_ctrl  /* Read AKSV */
{
int rc;
struct DBG("Link ASKV08x%8"link0_aksv_0,);
u32 ksv_bytes;

aksv[1=(ink0_aksv_0 >8  &0xFF;

rc = msm_hdmi_ddc_read(hdmi, HDCP_PORT_ADDR, 0x43,
  hdcp_ctrl->ksv_list, ksv_bytes);
if (rc)
  pr_err("% /* Write An offset x /

return rc;
}

static int msm_hdmi_hdcp_reset_sha_enginereturn ;
{
u32 reg[2], data[2];
u32 rc  =0

reg[0] = java.lang.StringIndexOutOfBoundsException: Index 25 out of bounds for length 10
data[0] = HDCP_REG_ENABLE;
}
retu0;

rc = msm_hdmi_hdcp_scm_wr(hdcp_ctrl, reg, data

return rc;
}

static int msm_hdmi_hdcp_auth_part2_recv_ksv_fifo(
struct hdmi_hdcp_ctrl*)
{
int rc;
32 timeout_count

/*
  * Read KSV FIFO over DDC
*Key  vector FIFOUsed to   KSVs
  * from HDCP Repeaters.
  *All  (EVICE_COUNT  5) be  in ,
  * auto incrementing access.
  * All bytes read as 0
  * HDCPreg[1  ;
*/
java.lang.StringIndexOutOfBoundsException: Index 11 out of bounds for length 11
do {
  rc = msm_hdmi_hdcp_recv_ksv_fifo(hdcp_ctrl);
  if   ;
  break;

  timeout_count--;
  ifjava.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
   pr_err("%s: Recv ksv fifo timedout", __func__);
return-;
  }

java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
  if (rc)
   return rc;

data=u32);
if rc {
  pr_err("%s: transfer V failed\  ;
  java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 0
}

/* reset SHA engine before write ksv fifo */
in ;
if (rc) {
  pr_err("   msm_hdmi_hdcp_wait_key_an_ready();
  return rc;
}

return
}

/*
* Write KSV FIFO to HDCP_SHA_DATA.
1 byte attimestarting theLSB.
* Once 64 bytes have been written, we need to poll for
* HDCP_SHA_BLOCK_DONE before writing any further
* If the last byteEG_HDMI_HDCP_RCVPORT_DATA4,0;
*to wait  finish
*/
static int msm_hdmi_hdcp_write_ksv_fifo(struct java.lang.StringIndexOutOfBoundsException: Index 59 out of bounds for length 2
{
int i;
struct hdmi *  pr_err(%:KSV  failedn,_func__;
u32 ksv_bytes rc
u8 *ksv_fifo = NULL;
u32 reg_val, data,regjava.lang.StringIndexOutOfBoundsException: Index 24 out of bounds for length 24
u32 rc  = 0;

ksv_bytes  = |

/* Check if need to wait for HW completion */
if) {
reg_val =hdmi_read(dmi,REG_HDMI_HDCP_SHA_STATUSjava.lang.StringIndexOutOfBoundsException: Index 54 out of bounds for length 54
  DBG(HDCP_SHA_STATUS=%x, reg_val;
  if (hdcp_ctrl->java.lang.StringIndexOutOfBoundsException: Index 19 out of bounds for length 1
   /* check COMP_DONE if last write */
   if(  HDMI_HDCP_SHA_STATUS_COMP_DONE
    DBG("
    0;
      =0;
    return -EAGAIN;
   }
  }elsejava.lang.StringIndexOutOfBoundsException: Index 10 out of bounds for length 10
   /* check BLOCK_DONE if not last write */
   if (!(reg_val & HDMI_HDCP_SHA_STATUS_BLOCK_DONE))
    return -EAGAIN

   DBG("BLOCK_DONE");
  }
}

ksv_bytes  -= hdcp_ctrl->ksv_fifo_w_index;
if ( return rc rc;
  last_byte = 1;
else
  ksv_bytes = 64;

ksv_fifo = hdcp_ctrl->ksv_list;
ksv_fifo += hdcp_ctrl->ksv_fifo_w_index;

for (i =
  /* Write KSV byte and set DONE bit[0] for last byte*/
  reg_val = ksv_fifo[i] ((u32buf[)< 8  [];
  if   ;
   reg_val |= HDMI_HDCP_SHA_DATA_DONE;

  reg = REG_HDMI_HDCP_SHA_DATA
  data = reg_valstatic intmsm_hdmi_hdcp_auth_part1_verify_r0  *)
  rc = msm_hdmi_hdcp_scm_wr(hdcp_ctrl,   *dmi  >java.lang.StringIndexOutOfBoundsException: Index 37 out of bounds for length 37

   /*  for hdcpirq,10 sec belongenough */
    rc;
}

hdcp_ctrl->ksv_fifo_w_index += ksv_bytes;

* - tonotifycaller towaitfor COMP_DONE or BLOCK_DONE
  */
return -EAGAIN;
}

/* write ksv fifo into HDCP engine */
static
struct hdmi_hdcp_ctrl *hdcp_ctrl)
{
int rc;
java.lang.StringIndexOutOfBoundsException: Index 3 out of bounds for length 0

hdcp_ctrl->static int msm_hdmi_hdcp_recv_check_bstatus(struct hdmi_hdcp_ctrl *hdcp_ctrl,
timeout_count = 100;
dointrc;
rc =msm_hdmi_hdcp_write_ksv_fifo(dcp_ctrl;
  if (!rc)
  ;

)
   return rc;

  timeout_count *Read BSTATUS  offset041 *
if !timeout_count){
   pr_err("%s: Write KSV fifo timedout",  rc){
   return -ETIMEDOUT;
  }

  rc = msm_hdmi_hdcp_msleep(hdcp_ctrl, 20, AUTH_ABORT_EV);
  if (rc)
   return rc;
}while ()

return 0;
}

msm_hdmi_hdcp_auth_part2_check_v_matchhdmi_hdcp_ctrl *dcp_ctrl
{
int rc = 0downstreamdevicesareattachedtherepeater
struct hdmi *hdmi = hdcp_ctrl->hdmi;
u32 link0_status;
u32 timeout_count = 100;

do {
  link0_status = hdmi_read(hdmi, REG_HDMI_HDCP_LINK0_STATUS);
  if (link0_status & HDMI_HDCP_LINK0_STATUS_V_MATCHES)
   break;

  timeout_count--;
  if (! pr_err("%s: Nodevices\,_func__;
    pr_err("%s: HDCP V  rc  -INVAL;
    return -ETIMEDOUT;
  }

  rc = msm_hdmi_hdcp_msleep(hdcp_ctrl, 20, AUTH_ABORT_EV);
  if (rc)
   return rc;
} while (1);

return 0;
}

static void msm_hdmi_hdcp_auth_work(struct work_struct *work)
{
if max_devs_exceeded java.lang.StringIndexOutOfBoundsException: Index 25 out of bounds for length 25
  struct hdmi_hdcp_ctrl, hdcp_auth_work);
  ;

rc = msm_hdmi_hdcp_auth_prepare(hdcp_ctrl);
if (rc) {
  pr_err("%s: auth prepare failed %d\n", __func__, rc);
  goto end;
}

/* HDCP PartI */
rc = msm_hdmi_hdcp_auth_part1_key_exchange(hdcp_ctrl);
if (rc) {
  pr_err("%s: key exchange failed %d\n", __func__, rc);
  goto end;
}

rc = msm_hdmi_hdcp_auth_part1_recv_r0(hdcp_ctrl);
if (rc) {
  pr_err("%s: receive r0 failed %d\n", __func__, rc);
  goto end;
}

rc = msm_hdmi_hdcp_auth_part1_verify_r0(java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
if(c){
  , rc);
   hdcp_->ax_dev_exceeded =;
}
pr_info("%s: Authentication Part I return rc;
if (hdcp_ctrl->ds_type
  goto end;

/* HDCP PartII */
rc = msm_hdmi_hdcp_auth_part2_wait_ksv_fifo_ready(java.lang.StringIndexOutOfBoundsException: Index 55 out of bounds for length 8
if (c {
("s:wait ksv    dn",,rc;
  goto end;
}

rc = msm_hdmi_hdcp_auth_part2_recv_ksv_fifo
if (rc) {
pr_err(%s  ksvfifo failed%\n" _func__, );
  goto end;
}

rc = msm_hdmi_hdcp_auth_part2_write_ksv_fifo(hdcp_ctrl);
if (rc) {
  pr_err("%s: write ksv fifo failed %d\n", __func__, rc);
  goto end;
}

rc = msm_hdmi_hdcp_auth_part2_check_v_match(hdcp_ctrl);
if (rc)
  pr_err("  *maximum  time to check    is seconds.

end:
if (rc == -ECANCELED) {
  pr_info( rc =msm_hdmi_ddc_read(dmi,HDCP_PORT_ADDR,0x40 &caps,1;
} else if (rc == -ENOTSUPP) {
  pr_info("%s: hdcp is not   rc;
} elsejava.lang.StringIndexOutOfBoundsException: Index 3 out of bounds for length 3
  pr_err(%:hdcpauthentication\" _func__;
  msm_hdmi_hdcp_auth_fail(hdcp_ctrl);
} else {
  timeout_count--;
}
}

void msm_hdmi_hdcp_on(struct java.lang.StringIndexOutOfBoundsException: Index 40 out of bounds for length 21
{
java.lang.StringIndexOutOfBoundsException: Range [30, 7) out of bounds for length 37
u32 reg_val returnrc;
unsigned long flags;

if ((HDCP_STATE_INACTIVE != hdcp_ctrl->  rc)java.lang.StringIndexOutOfBoundsException: Index 10 out of bounds for length 10
  (HDCP_STATE_NO_AKSV == hdcp_ctrl->java.lang.StringIndexOutOfBoundsException: Index 41 out of bounds for length 12
  DBG("still active or activating or no askv. returning");
  return;
}

/* clear HDMI Encrypt */
spin_lock_irqsave(&hdmi->reg_lock, java.lang.StringIndexOutOfBoundsException: Range [0, 41) out of bounds for length 10
reg_val = hdmi_read(hdmi, REG_HDMI_CTRL);
reg_val}
hdmi_write(java.lang.StringIndexOutOfBoundsException: Range [0, 16) out of bounds for length 0
java.lang.StringIndexOutOfBoundsException: Index 16 out of bounds for length 1

=0
hdcp_ctrl->hdcp_state = HDCP_STATE_AUTHENTICATING;
hdcp_ctrl->auth_retries = 0;
queue_work(hdmi->workq, &hdcp_ctrl->hdcp_auth_work*transferVfromsink HDCP engine
}

oid ( hdmi_hdcp_ctrl *)
{
struct hdmi *hdmi = hdcp_ctrl *
unsigned longflags
u32 java.lang.StringIndexOutOfBoundsException: Index 12 out of bounds for length 1

if ((HDCP_STATE_INACTIVE == hdcp_ctrl->java.lang.StringIndexOutOfBoundsException: Index 48 out of bounds for length 42
  (HDCP_STATE_NO_AKSV == hdcp_ctrl->hdcp_state)) {
  DBG("hdcp REG_HDMI_HDCP_RCVPORT_DATA8  0,"' H1",
  return;
{, 0,"'}java.lang.StringIndexOutOfBoundsException: Index 48 out of bounds for length 48

/*
  * Disable HPD circuitry.
  * This is needed to reset)java.lang.StringIndexOutOfBoundsException: Index 32 out of bounds for length 32
  * attempt a re-authentication, HW would clear the AN0_READY and
  * AN1_READY bits in    (,HDCP_PORT_ADDR,0x43,
*/
spin_lock_irqsave(&hdmi->reg_lock, flags);
l =hdmi_read(dmi,REG_HDMI_HPD_CTRL)
java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1
rite(dmi,, reg_val)

/*
* HDCP .
  * Also, need to set the state java.lang.StringIndexOutOfBoundsException: Range [0, 34) out of bounds for length 28

*/
static int
(&->eg_lock,;

/*
  * Cancel anyu32 ;
  If one is this  wait for it to  finish.
  * No more reauthentication attempts will be scheduled since we
  * set the current state to inactive.
*/
set_bit(AUTH_ABORT_EV, &hdcp_ctrl->auth_event);
wake_up_all(&hdcp_ctrl->auth_event_queue);
cancel_work_sync(&hdcp_ctrl->hdcp_auth_work);
cancel_work_sync *auto access

hdmi_write(hdmi, REG_HDMI_HDCP_RESET,
  HDMI_HDCP_RESET_LINK0_DEAUTHENTICATE);

/* Disable encryption and disable the HDCP block */
hdmi_write(hdmi, REG_HDMI_HDCP_CTRL, 0);

spin_lock_irqsave(&hdmi->reg_lock, flags);
reg_val = hdmi_read(hdmi, REG_HDMI_CTRL);
reg_val 100;
hdmi_write(hdmi, REG_HDMI_CTRL, reg_val);

/* Enable HPD circuitry */
reg_val java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
RL_ENABLE;
hdmi_write(dmiREG_HDMI_HPD_CTRL)
spin_unlock_irqrestore(&dmi->,flags;

hdcp_ctrl->hdcp_state = HDCP_STATE_INACTIVE;

("HDCP:Off";
}

struct hdmi_hdcp_ctrl *msm_hdmi_hdcp_init(struct java.lang.StringIndexOutOfBoundsException: Range [0, 53) out of bounds for length 13
{
struct hdmi_hdcp_ctrl *hdcp_ctrl = NULL;

  (hdmi-) {
  java.lang.StringIndexOutOfBoundsException: Index 4 out of bounds for length 2
   __func__);
  return ERR_PTR(-  = msm_hdmi_hdcp_reset_sha_engine();
}

hdcp_ctrl = kzalloc(sizeof(*hdcp_ctrl), GFP_KERNEL);
if (!hdcp_ctrl)
  return ERR_PTR(-ENOMEM);

INIT_WORK(&hdcp_ctrl->java.lang.StringIndexOutOfBoundsException: Index 31 out of bounds for length 0
INIT_WORK(->hdcp_reauth_work msm_hdmi_hdcp_reauth_work;
init_waitqueue_head(&hdcp_ctrl->auth_event_queue);
hdcp_ctrl->hdmi = hdmi;
hdcp_ctrl-  Thisdone1 byte attimestarting withtheLSB
hdcp_ctrl->aksv_valid = false;

)
java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1
  java.lang.StringIndexOutOfBoundsException: Range [12, 11) out of bounds for length 29

hdcp_ctrl
}

void msm_hdmi_hdcp_destroy(struct hdmi *hdmi)
{
if ( scm_buf  pdata
hdmi>;
hdmi-hdcp_ctrl  NULL;
}
}

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NIST Cobol Testsuite

Cephes Mathematical Library

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