Messages in this thread Patch in this message | | | Date | Mon, 9 Jan 2023 11:39:43 -0800 | From | Benson Leung <> | Subject | Re: [PATCH 10/10] platform/chrome: cros_typec_vdm: Add VDM send support |
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On Wed, Dec 28, 2022 at 12:45:13AM +0000, Prashant Malani wrote: > Add support to send generic VDM messages from the alt mode driver to the > partner (via the ChromeOS EC). The function introduced here is intended > to be called by the alt mode driver (via the Type-C bus logic). > > Cc: Heikki Krogerus <heikki.krogerus@linux.intel.com> > Signed-off-by: Prashant Malani <pmalani@chromium.org>
Reviewed-by: Benson Leung <bleung@chromium.org>
> --- > drivers/platform/chrome/cros_typec_vdm.c | 24 ++++++++++++++++++++++++ > 1 file changed, 24 insertions(+) > > diff --git a/drivers/platform/chrome/cros_typec_vdm.c b/drivers/platform/chrome/cros_typec_vdm.c > index fc7b602ceb37..aca9d337118e 100644 > --- a/drivers/platform/chrome/cros_typec_vdm.c > +++ b/drivers/platform/chrome/cros_typec_vdm.c > @@ -77,6 +77,30 @@ static int cros_typec_port_amode_enter(struct typec_altmode *amode, u32 *vdo) > sizeof(req), NULL, 0); > } > > +static int cros_typec_port_amode_vdm(struct typec_altmode *amode, const u32 hdr, > + const u32 *vdo, int cnt) > +{ > + struct cros_typec_port *port = typec_altmode_get_drvdata(amode); > + struct ec_params_typec_control req = { > + .port = port->port_num, > + .command = TYPEC_CONTROL_COMMAND_SEND_VDM_REQ, > + }; > + struct typec_vdm_req vdm_req = {}; > + > + vdm_req.vdm_data[0] = hdr; > + vdm_req.vdm_data_objects = cnt; > + memcpy(&vdm_req.vdm_data[1], vdo, cnt - 1); > + vdm_req.partner_type = TYPEC_PARTNER_SOP; > + req.vdm_req_params = vdm_req; > + > + dev_dbg(port->typec_data->dev, "Sending VDM, hdr: %x, num_objects: %d, port: %d\n", > + hdr, cnt, port->port_num); > + > + return cros_ec_cmd(port->typec_data->ec, 0, EC_CMD_TYPEC_CONTROL, &req, > + sizeof(req), NULL, 0); > +} > + > struct typec_altmode_ops port_amode_ops = { > .enter = cros_typec_port_amode_enter, > + .vdm = cros_typec_port_amode_vdm, > }; > -- > 2.39.0.314.g84b9a713c41-goog > >
-- Benson Leung Staff Software Engineer Chrome OS Kernel Google Inc. bleung@google.com Chromium OS Project bleung@chromium.org [unhandled content-type:application/pgp-signature] | |