Re: [Intel-gfx] [PATCH v3 18/40] misc/mei/hdcp: Closing wired HDCP2.2 Tx Session
On Wednesday 09 May 2018 07:32 PM, Shankar, Uma wrote: -Original Message- From: Intel-gfx [mailto:intel-gfx-boun...@lists.freedesktop.org] On Behalf Of Ramalingam C Sent: Tuesday, April 3, 2018 7:28 PM To: intel-...@lists.freedesktop.org; dri-devel@lists.freedesktop.org; seanp...@chromium.org; dan...@ffwll.ch; ch...@chris-wilson.co.uk; jani.nik...@linux.intel.com; Winkler, Tomas ; Usyskin, Alexander Cc: Vivi, Rodrigo Subject: [Intel-gfx] [PATCH v3 18/40] misc/mei/hdcp: Closing wired HDCP2.2 Tx Session Request the ME to terminate the HDCP2.2 session for a port. On Success, ME FW will mark the intel port as Deauthenticated and terminate the wired HDCP2.2 Tx session started due to the cmd WIRED_INITIATE_HDCP2_SESSION. v2: Rebased. v3: cldev is passed as first parameter [Tomas] Redundant comments and cast are removed [Tomas] Signed-off-by: Ramalingam C --- drivers/misc/mei/hdcp/mei_hdcp.c | 55 include/linux/mei_hdcp.h | 7 + 2 files changed, 62 insertions(+) diff --git a/drivers/misc/mei/hdcp/mei_hdcp.c b/drivers/misc/mei/hdcp/mei_hdcp.c index b5d1da41f1d9..ed402f1f2f64 100644 --- a/drivers/misc/mei/hdcp/mei_hdcp.c +++ b/drivers/misc/mei/hdcp/mei_hdcp.c @@ -686,6 +686,61 @@ int mei_enable_hdcp_authentication(struct mei_cl_device *cldev, } EXPORT_SYMBOL(mei_enable_hdcp_authentication); +/** + * me_close_hdcp_session: Typo in me. Should be mei. Thank you for catching it. --Ram + * Function to close the Wired HDCP Tx session of ME FW. + * This also disables the authenticated state of the port. + * + * @data : Intel HW specific Data + * + * Returns 0 on Success, <0 on Failure + */ +int mei_close_hdcp_session(struct mei_cl_device *cldev, + struct mei_hdcp_data *data) +{ + struct wired_cmd_close_session_in session_close_in = { { 0 } }; + struct wired_cmd_close_session_out session_close_out = { { 0 } }; + struct device *dev; + ssize_t byte; + + if (!data) + return -EINVAL; + + dev = &cldev->dev; + + session_close_in.header.api_version = HDCP_API_VERSION; + session_close_in.header.command_id = WIRED_CLOSE_SESSION; + session_close_in.header.status = ME_HDCP_STATUS_SUCCESS; + session_close_in.header.buffer_len = + WIRED_CMD_BUF_LEN_CLOSE_SESSION_IN; + + session_close_in.port.integrated_port_type = data->port_type; + session_close_in.port.physical_port = data->port; + + + byte = mei_cldev_send(cldev, (u8 *)&session_close_in, + sizeof(session_close_in)); + if (byte < 0) { + dev_dbg(dev, "mei_cldev_send failed. %d\n", (int)byte); + return byte; + } + + byte = mei_cldev_recv(cldev, (u8 *)&session_close_out, + sizeof(session_close_out)); + if (byte < 0) { + dev_dbg(dev, "mei_cldev_recv failed. %d\n", (int)byte); + return byte; + } + + if (session_close_out.header.status != ME_HDCP_STATUS_SUCCESS) { + dev_dbg(dev, "Session Close Failed. status: 0x%X\n", + session_close_out.header.status); + return -1; + } + return 0; +} +EXPORT_SYMBOL(mei_close_hdcp_session); + void mei_cldev_state_notify_clients(struct mei_cl_device *cldev, bool enabled) { if (enabled) diff --git a/include/linux/mei_hdcp.h b/include/linux/mei_hdcp.h index 2366d0741abe..55cbde890571 100644 --- a/include/linux/mei_hdcp.h +++ b/include/linux/mei_hdcp.h @@ -138,6 +138,8 @@ int mei_verify_mprime(struct mei_cl_device *cldev, struct mei_hdcp_data *data, struct hdcp2_rep_stream_ready *stream_ready); int mei_enable_hdcp_authentication(struct mei_cl_device *cldev, struct mei_hdcp_data *data); +int mei_close_hdcp_session(struct mei_cl_device *cldev, + struct mei_hdcp_data *data); #else static int mei_cldev_register_notify(struct notifier_block *nb) { @@ -216,5 +218,10 @@ static inline int mei_enable_hdcp_authentication(struct mei_cl_device *cldev, { return -ENODEV; } +static inline int mei_close_hdcp_session(struct mei_cl_device *cldev, +struct mei_hdcp_data *data) +{ + return -ENODEV; +} #endif /* defined (CONFIG_INTEL_MEI_HDCP) */ #endif /* defined (_LINUX_MEI_HDCP_H) */ -- 2.7.4 ___ Intel-gfx mailing list intel-...@lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/intel-gfx ___ dri-devel mailing list dri-devel@lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/dri-devel
RE: [Intel-gfx] [PATCH v3 18/40] misc/mei/hdcp: Closing wired HDCP2.2 Tx Session
>-Original Message- >From: Intel-gfx [mailto:intel-gfx-boun...@lists.freedesktop.org] On Behalf Of >Ramalingam C >Sent: Tuesday, April 3, 2018 7:28 PM >To: intel-...@lists.freedesktop.org; dri-devel@lists.freedesktop.org; >seanp...@chromium.org; dan...@ffwll.ch; ch...@chris-wilson.co.uk; >jani.nik...@linux.intel.com; Winkler, Tomas ; >Usyskin, Alexander >Cc: Vivi, Rodrigo >Subject: [Intel-gfx] [PATCH v3 18/40] misc/mei/hdcp: Closing wired HDCP2.2 Tx >Session > >Request the ME to terminate the HDCP2.2 session for a port. > >On Success, ME FW will mark the intel port as Deauthenticated and terminate the >wired HDCP2.2 Tx session started due to the cmd >WIRED_INITIATE_HDCP2_SESSION. > >v2: > Rebased. >v3: > cldev is passed as first parameter [Tomas] > Redundant comments and cast are removed [Tomas] > >Signed-off-by: Ramalingam C >--- > drivers/misc/mei/hdcp/mei_hdcp.c | 55 > > include/linux/mei_hdcp.h | 7 + > 2 files changed, 62 insertions(+) > >diff --git a/drivers/misc/mei/hdcp/mei_hdcp.c >b/drivers/misc/mei/hdcp/mei_hdcp.c >index b5d1da41f1d9..ed402f1f2f64 100644 >--- a/drivers/misc/mei/hdcp/mei_hdcp.c >+++ b/drivers/misc/mei/hdcp/mei_hdcp.c >@@ -686,6 +686,61 @@ int mei_enable_hdcp_authentication(struct >mei_cl_device *cldev, } EXPORT_SYMBOL(mei_enable_hdcp_authentication); > >+/** >+ * me_close_hdcp_session: Typo in me. Should be mei. >+ *Function to close the Wired HDCP Tx session of ME FW. >+ *This also disables the authenticated state of the port. >+ * >+ * @data : Intel HW specific Data >+ * >+ * Returns 0 on Success, <0 on Failure >+ */ >+int mei_close_hdcp_session(struct mei_cl_device *cldev, >+ struct mei_hdcp_data *data) >+{ >+ struct wired_cmd_close_session_in session_close_in = { { 0 } }; >+ struct wired_cmd_close_session_out session_close_out = { { 0 } }; >+ struct device *dev; >+ ssize_t byte; >+ >+ if (!data) >+ return -EINVAL; >+ >+ dev = &cldev->dev; >+ >+ session_close_in.header.api_version = HDCP_API_VERSION; >+ session_close_in.header.command_id = WIRED_CLOSE_SESSION; >+ session_close_in.header.status = ME_HDCP_STATUS_SUCCESS; >+ session_close_in.header.buffer_len = >+ WIRED_CMD_BUF_LEN_CLOSE_SESSION_IN; >+ >+ session_close_in.port.integrated_port_type = data->port_type; >+ session_close_in.port.physical_port = data->port; >+ >+ >+ byte = mei_cldev_send(cldev, (u8 *)&session_close_in, >+sizeof(session_close_in)); >+ if (byte < 0) { >+ dev_dbg(dev, "mei_cldev_send failed. %d\n", (int)byte); >+ return byte; >+ } >+ >+ byte = mei_cldev_recv(cldev, (u8 *)&session_close_out, >+sizeof(session_close_out)); >+ if (byte < 0) { >+ dev_dbg(dev, "mei_cldev_recv failed. %d\n", (int)byte); >+ return byte; >+ } >+ >+ if (session_close_out.header.status != ME_HDCP_STATUS_SUCCESS) { >+ dev_dbg(dev, "Session Close Failed. status: 0x%X\n", >+ session_close_out.header.status); >+ return -1; >+ } >+ return 0; >+} >+EXPORT_SYMBOL(mei_close_hdcp_session); >+ > void mei_cldev_state_notify_clients(struct mei_cl_device *cldev, bool > enabled) { > if (enabled) >diff --git a/include/linux/mei_hdcp.h b/include/linux/mei_hdcp.h index >2366d0741abe..55cbde890571 100644 >--- a/include/linux/mei_hdcp.h >+++ b/include/linux/mei_hdcp.h >@@ -138,6 +138,8 @@ int mei_verify_mprime(struct mei_cl_device *cldev, >struct mei_hdcp_data *data, > struct hdcp2_rep_stream_ready *stream_ready); int >mei_enable_hdcp_authentication(struct mei_cl_device *cldev, > struct mei_hdcp_data *data); >+int mei_close_hdcp_session(struct mei_cl_device *cldev, >+ struct mei_hdcp_data *data); > #else > static int mei_cldev_register_notify(struct notifier_block *nb) { @@ -216,5 >+218,10 @@ static inline int mei_enable_hdcp_authentication(struct >mei_cl_device *cldev, { > return -ENODEV; > } >+static inline int mei_close_hdcp_session(struct mei_cl_device *cldev, >+ struct mei_hdcp_data *data) >+{ >+ return -ENODEV; >+} > #endif /* defined (CONFIG_INTEL_MEI_HDCP) */ #endif /* defined >(_LINUX_MEI_HDCP_H) */ >-- >2.7.4 > >___ >Intel-gfx mailing list >intel-...@lists.freedesktop.org >https://lists.freedesktop.org/mailman/listinfo/intel-gfx ___ dri-devel mailing list dri-devel@lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/dri-devel