From: Prashant Malani <pmalani@chromium.org>
To: linux-kernel@vger.kernel.org, chrome-platform@lists.linux.dev
Cc: heikki.krogerus@linux.intel.com,
Prashant Malani <pmalani@chromium.org>,
Benson Leung <bleung@chromium.org>,
Daisuke Nojiri <dnojiri@chromium.org>,
"Dustin L. Howett" <dustin@howett.net>,
Evan Green <evgreen@chromium.org>,
Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
Guenter Roeck <groeck@chromium.org>,
"Gustavo A. R. Silva" <gustavoars@kernel.org>,
Kees Cook <keescook@chromium.org>,
Lee Jones <lee.jones@linaro.org>, Lee Jones <lee@kernel.org>,
Sebastian Reichel <sebastian.reichel@collabora.com>,
Stephen Boyd <swboyd@chromium.org>,
Tinghan Shen <tinghan.shen@mediatek.com>,
Tzung-Bi Shih <tzungbi@kernel.org>,
Xiang wangx <wangxiang@cdjrlc.com>
Subject: [PATCH 10/10] platform/chrome: cros_typec_vdm: Add VDM send support
Date: Wed, 28 Dec 2022 00:45:13 +0000 [thread overview]
Message-ID: <20221228004648.793339-11-pmalani@chromium.org> (raw)
In-Reply-To: <20221228004648.793339-1-pmalani@chromium.org>
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>
---
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
next prev parent reply other threads:[~2022-12-28 1:13 UTC|newest]
Thread overview: 25+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-12-28 0:45 [PATCH 00/10] platform/chrome: cros_ec_typec: VDM support Prashant Malani
2022-12-28 0:45 ` [PATCH 01/10] Revert "mfd: cros_ec: Add SCP Core-1 as a new CrOS EC MCU" Prashant Malani
2023-01-03 8:23 ` Lee Jones
2023-01-09 19:38 ` Benson Leung
2022-12-28 0:45 ` [PATCH 02/10] platform_chrome: cros_ec: Add Type-C VDM defines Prashant Malani
2023-01-09 19:40 ` Benson Leung
2022-12-28 0:45 ` [PATCH 03/10] platform/chrome: cros_ec_typec: Stash port driver info Prashant Malani
2023-01-09 19:42 ` Benson Leung
2022-12-28 0:45 ` [PATCH 04/10] platform/chrome: cros_ec_typec: Set port alt mode drvdata Prashant Malani
2023-01-09 19:43 ` Benson Leung
2022-12-28 0:45 ` [PATCH 05/10] platform/chrome: cros_ec_typec: Update port DP VDO Prashant Malani
2023-01-09 19:45 ` Benson Leung
2022-12-28 0:45 ` [PATCH 06/10] platform/chrome: cros_ec_typec: Move structs to header Prashant Malani
2023-01-09 19:47 ` Benson Leung
2022-12-28 0:45 ` [PATCH 07/10] platform/chrome: cros_ec_typec: Alter module name with hyphens Prashant Malani
2023-01-09 19:48 ` Benson Leung
2022-12-28 0:45 ` [PATCH 08/10] platform/chrome: cros_ec_typec: Add initial VDM support Prashant Malani
2023-01-09 19:49 ` Benson Leung
2022-12-28 0:45 ` [PATCH 09/10] platform/chrome: cros_typec_vdm: Add VDM reply support Prashant Malani
2023-01-09 19:50 ` Benson Leung
2022-12-28 0:45 ` Prashant Malani [this message]
2023-01-09 19:39 ` [PATCH 10/10] platform/chrome: cros_typec_vdm: Add VDM send support Benson Leung
2023-01-02 11:20 ` [PATCH 00/10] platform/chrome: cros_ec_typec: VDM support Heikki Krogerus
2023-01-09 20:40 ` patchwork-bot+chrome-platform
2023-01-10 18:50 ` patchwork-bot+chrome-platform
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