static void adv7520_hdcp_enable(struct work_struct *work)
{
DEV_INFO("HDCP: Start reg[0xaf]=%02x (mute audio)\n", reg[0xaf]);
adv7520_comm_power(1, 1);
/* Mute Audio */
adv7520_write_reg(hclient, 0x0C, (u8)0xC3);
msleep(200);
/* Wait for BKSV ready interrupt */
/* Read BKSV's keys from HDTV */
reg[0xBF] = adv7520_read_reg(hclient, 0xBF);
reg[0xC0] = adv7520_read_reg(hclient, 0xC0);
reg[0xC1] = adv7520_read_reg(hclient, 0xC1);
reg[0xC2] = adv7520_read_reg(hclient, 0xC2);
reg[0xc3] = adv7520_read_reg(hclient, 0xC3);
DEV_DBG("HDCP: BKSV={%02x,%02x,%02x,%02x,%02x}\n", reg[0xbf], reg[0xc0],
reg[0xc1], reg[0xc2], reg[0xc3]);
/* Is SINK repeater */
reg[0xBE] = adv7520_read_reg(hclient, 0xBE);
if (~(reg[0xBE] & 0x40)) {
; /* compare with revocation list */
/* Check 20 1's and 20 zero's */
} else {
/* Don't implement HDCP if sink as a repeater */
adv7520_write_reg(hclient, 0x0C, (u8)0x84);
mutex_lock(&hdcp_state_mutex);
hdcp_activating = FALSE;
mutex_unlock(&hdcp_state_mutex);
DEV_WARN("HDCP: Sink Repeater (%02x), (unmute audio)\n",
reg[0xbe]);
adv7520_comm_power(0, 1);
return;
}
msleep(200);
reg[0xB8] = adv7520_read_reg(hclient, 0xB8);
DEV_INFO("HDCP: Status reg[0xB8] is %02x\n", reg[0xb8]);
if (reg[0xb8] & 0x40) {
/* UnMute Audio */
adv7520_write_reg(hclient, 0x0C, (u8)0x84);
DEV_INFO("HDCP: A/V content Encrypted (unmute audio)\n");
external_common_state->hdcp_active = TRUE;
}
adv7520_comm_power(0, 1);
mutex_lock(&hdcp_state_mutex);
hdcp_activating = FALSE;
mutex_unlock(&hdcp_state_mutex);
}
static void adv7520_hdcp_enable(struct work_struct *work)
{
DEV_INFO("HDCP: Start reg[0xaf]=%02x (mute audio)\n", reg[0xaf]);
adv7520_comm_power(1, 1);
adv7520_write_reg(hclient, 0x0C, (u8)0xC3);
msleep(200);
reg[0xBF] = adv7520_read_reg(hclient, 0xBF);
reg[0xC0] = adv7520_read_reg(hclient, 0xC0);
reg[0xC1] = adv7520_read_reg(hclient, 0xC1);
reg[0xC2] = adv7520_read_reg(hclient, 0xC2);
reg[0xc3] = adv7520_read_reg(hclient, 0xC3);
DEV_DBG("HDCP: BKSV={%02x,%02x,%02x,%02x,%02x}\n", reg[0xbf], reg[0xc0],
reg[0xc1], reg[0xc2], reg[0xc3]);
reg[0xBE] = adv7520_read_reg(hclient, 0xBE);
if (~(reg[0xBE] & 0x40)) {
;
} else {
adv7520_write_reg(hclient, 0x0C, (u8)0x84);
mutex_lock(&hdcp_state_mutex);
hdcp_activating = FALSE;
mutex_unlock(&hdcp_state_mutex);
DEV_WARN("HDCP: Sink Repeater (%02x), (unmute audio)\n",
reg[0xbe]);
adv7520_comm_power(0, 1);
return;
}
msleep(200);
reg[0xB8] = adv7520_read_reg(hclient, 0xB8);
DEV_INFO("HDCP: Status reg[0xB8] is %02x\n", reg[0xb8]);
if (reg[0xb8] & 0x40) {
adv7520_write_reg(hclient, 0x0C, (u8)0x84);
DEV_INFO("HDCP: A/V content Encrypted (unmute audio)\n");
external_common_state->hdcp_active = TRUE;
}
adv7520_comm_power(0, 1);
mutex_lock(&hdcp_state_mutex);
hdcp_activating = FALSE;
mutex_unlock(&hdcp_state_mutex);
}
