* [PATCH v3 4/4] usb: typec: ucsi: Register SOP' alternate modes with cable plug
@ 2024-02-29 1:54 Jameson Thies
0 siblings, 0 replies; 2+ messages in thread
From: Jameson Thies @ 2024-02-29 1:54 UTC (permalink / raw)
To: heikki.krogerus, linux-usb
Cc: jthies, pmalani, bleung, abhishekpandit, andersson,
dmitry.baryshkov, fabrice.gasnier, gregkh, hdegoede,
neil.armstrong, rajaram.regupathy, saranya.gopal, linux-kernel,
Benson Leung
Register SOP' alternate modes with a Type-C Connector Class cable plug.
Alternate modes are queried from the PPM using the GET_ALTERNATE_MODES
command with recipient set to SOP'.
Reviewed-by: Benson Leung <bleung@chromium.org>
Reviewed-by: Prashant Malani <pmalani@chromium.org>
Reviewed-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Signed-off-by: Jameson Thies <jthies@google.com>
---
SOP' GET_ALTERNATE_MODE responses from the PPM are correctly registered
to the cable plug.
nospike-rev4 /sys/class/typec # ls port0-cable/port0-plug0/
device port0-plug0.0 port0-plug0.1 power subsystem uevent
Changes in v3:
- None.
Changes in v2:
- Shortened lines to within 80 characters.
- Tested on usb-testing branch merged with chromeOS 6.8-rc2 kernel.
drivers/usb/typec/ucsi/ucsi.c | 60 +++++++++++++++++++++++++++++++++++
drivers/usb/typec/ucsi/ucsi.h | 2 ++
2 files changed, 62 insertions(+)
diff --git a/drivers/usb/typec/ucsi/ucsi.c b/drivers/usb/typec/ucsi/ucsi.c
index 4088422b33c74..281954fe9d855 100644
--- a/drivers/usb/typec/ucsi/ucsi.c
+++ b/drivers/usb/typec/ucsi/ucsi.c
@@ -399,6 +399,27 @@ static int ucsi_register_altmode(struct ucsi_connector *con,
con->partner_altmode[i] = alt;
break;
+ case UCSI_RECIPIENT_SOP_P:
+ i = ucsi_next_altmode(con->plug_altmode);
+ if (i < 0) {
+ ret = i;
+ goto err;
+ }
+
+ ret = ucsi_altmode_next_mode(con->plug_altmode, desc->svid);
+ if (ret < 0)
+ return ret;
+
+ desc->mode = ret;
+
+ alt = typec_plug_register_altmode(con->plug, desc);
+ if (IS_ERR(alt)) {
+ ret = PTR_ERR(alt);
+ goto err;
+ }
+
+ con->plug_altmode[i] = alt;
+ break;
default:
return -EINVAL;
}
@@ -566,6 +587,9 @@ static void ucsi_unregister_altmodes(struct ucsi_connector *con, u8 recipient)
case UCSI_RECIPIENT_SOP:
adev = con->partner_altmode;
break;
+ case UCSI_RECIPIENT_SOP_P:
+ adev = con->plug_altmode;
+ break;
default:
return;
}
@@ -849,6 +873,33 @@ static void ucsi_unregister_partner_pdos(struct ucsi_connector *con)
con->partner_pd = NULL;
}
+static int ucsi_register_plug(struct ucsi_connector *con)
+{
+ struct typec_plug *plug;
+ struct typec_plug_desc desc = {.index = TYPEC_PLUG_SOP_P};
+
+ plug = typec_register_plug(con->cable, &desc);
+ if (IS_ERR(plug)) {
+ dev_err(con->ucsi->dev,
+ "con%d: failed to register plug (%ld)\n", con->num,
+ PTR_ERR(plug));
+ return PTR_ERR(plug);
+ }
+
+ con->plug = plug;
+ return 0;
+}
+
+static void ucsi_unregister_plug(struct ucsi_connector *con)
+{
+ if (!con->plug)
+ return;
+
+ ucsi_unregister_altmodes(con, UCSI_RECIPIENT_SOP_P);
+ typec_unregister_plug(con->plug);
+ con->plug = NULL;
+}
+
static int ucsi_register_cable(struct ucsi_connector *con)
{
struct typec_cable *cable;
@@ -892,6 +943,7 @@ static void ucsi_unregister_cable(struct ucsi_connector *con)
if (!con->cable)
return;
+ ucsi_unregister_plug(con);
typec_unregister_cable(con->cable);
memset(&con->cable_identity, 0, sizeof(con->cable_identity));
con->cable = NULL;
@@ -1098,6 +1150,14 @@ static int ucsi_check_cable(struct ucsi_connector *con)
if (ret < 0)
return ret;
+ ret = ucsi_register_plug(con);
+ if (ret < 0)
+ return ret;
+
+ ret = ucsi_register_altmodes(con, UCSI_RECIPIENT_SOP_P);
+ if (ret < 0)
+ return ret;
+
return 0;
}
diff --git a/drivers/usb/typec/ucsi/ucsi.h b/drivers/usb/typec/ucsi/ucsi.h
index b89fae82e8ce7..32daf5f586505 100644
--- a/drivers/usb/typec/ucsi/ucsi.h
+++ b/drivers/usb/typec/ucsi/ucsi.h
@@ -429,9 +429,11 @@ struct ucsi_connector {
struct typec_port *port;
struct typec_partner *partner;
struct typec_cable *cable;
+ struct typec_plug *plug;
struct typec_altmode *port_altmode[UCSI_MAX_ALTMODES];
struct typec_altmode *partner_altmode[UCSI_MAX_ALTMODES];
+ struct typec_altmode *plug_altmode[UCSI_MAX_ALTMODES];
struct typec_capability typec_cap;
--
2.44.0.rc1.240.g4c46232300-goog
^ permalink raw reply related [flat|nested] 2+ messages in thread
* [PATCH v3 4/4] usb: typec: ucsi: Register SOP' alternate modes with cable plug
2024-02-29 23:26 [PATCH v3 0/4] usb: typec: ucsi: Expand SOP/SOP' Discovery Jameson Thies
@ 2024-02-29 23:26 ` Jameson Thies
0 siblings, 0 replies; 2+ messages in thread
From: Jameson Thies @ 2024-02-29 23:26 UTC (permalink / raw)
To: heikki.krogerus, linux-usb
Cc: jthies, pmalani, bleung, abhishekpandit, andersson,
dmitry.baryshkov, fabrice.gasnier, gregkh, hdegoede,
neil.armstrong, rajaram.regupathy, saranya.gopal, linux-kernel,
Benson Leung
Register SOP' alternate modes with a Type-C Connector Class cable plug.
Alternate modes are queried from the PPM using the GET_ALTERNATE_MODES
command with recipient set to SOP'.
Reviewed-by: Benson Leung <bleung@chromium.org>
Reviewed-by: Prashant Malani <pmalani@chromium.org>
Reviewed-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Signed-off-by: Jameson Thies <jthies@google.com>
---
SOP' GET_ALTERNATE_MODE responses from the PPM are correctly registered
to the cable plug.
nospike-rev4 /sys/class/typec # ls port0-cable/port0-plug0/
device port0-plug0.0 port0-plug0.1 power subsystem uevent
Changes in v3:
- None.
Changes in v2:
- Shortened lines to within 80 characters.
- Tested on usb-testing branch merged with chromeOS 6.8-rc2 kernel.
drivers/usb/typec/ucsi/ucsi.c | 60 +++++++++++++++++++++++++++++++++++
drivers/usb/typec/ucsi/ucsi.h | 2 ++
2 files changed, 62 insertions(+)
diff --git a/drivers/usb/typec/ucsi/ucsi.c b/drivers/usb/typec/ucsi/ucsi.c
index 4088422b33c74..281954fe9d855 100644
--- a/drivers/usb/typec/ucsi/ucsi.c
+++ b/drivers/usb/typec/ucsi/ucsi.c
@@ -399,6 +399,27 @@ static int ucsi_register_altmode(struct ucsi_connector *con,
con->partner_altmode[i] = alt;
break;
+ case UCSI_RECIPIENT_SOP_P:
+ i = ucsi_next_altmode(con->plug_altmode);
+ if (i < 0) {
+ ret = i;
+ goto err;
+ }
+
+ ret = ucsi_altmode_next_mode(con->plug_altmode, desc->svid);
+ if (ret < 0)
+ return ret;
+
+ desc->mode = ret;
+
+ alt = typec_plug_register_altmode(con->plug, desc);
+ if (IS_ERR(alt)) {
+ ret = PTR_ERR(alt);
+ goto err;
+ }
+
+ con->plug_altmode[i] = alt;
+ break;
default:
return -EINVAL;
}
@@ -566,6 +587,9 @@ static void ucsi_unregister_altmodes(struct ucsi_connector *con, u8 recipient)
case UCSI_RECIPIENT_SOP:
adev = con->partner_altmode;
break;
+ case UCSI_RECIPIENT_SOP_P:
+ adev = con->plug_altmode;
+ break;
default:
return;
}
@@ -849,6 +873,33 @@ static void ucsi_unregister_partner_pdos(struct ucsi_connector *con)
con->partner_pd = NULL;
}
+static int ucsi_register_plug(struct ucsi_connector *con)
+{
+ struct typec_plug *plug;
+ struct typec_plug_desc desc = {.index = TYPEC_PLUG_SOP_P};
+
+ plug = typec_register_plug(con->cable, &desc);
+ if (IS_ERR(plug)) {
+ dev_err(con->ucsi->dev,
+ "con%d: failed to register plug (%ld)\n", con->num,
+ PTR_ERR(plug));
+ return PTR_ERR(plug);
+ }
+
+ con->plug = plug;
+ return 0;
+}
+
+static void ucsi_unregister_plug(struct ucsi_connector *con)
+{
+ if (!con->plug)
+ return;
+
+ ucsi_unregister_altmodes(con, UCSI_RECIPIENT_SOP_P);
+ typec_unregister_plug(con->plug);
+ con->plug = NULL;
+}
+
static int ucsi_register_cable(struct ucsi_connector *con)
{
struct typec_cable *cable;
@@ -892,6 +943,7 @@ static void ucsi_unregister_cable(struct ucsi_connector *con)
if (!con->cable)
return;
+ ucsi_unregister_plug(con);
typec_unregister_cable(con->cable);
memset(&con->cable_identity, 0, sizeof(con->cable_identity));
con->cable = NULL;
@@ -1098,6 +1150,14 @@ static int ucsi_check_cable(struct ucsi_connector *con)
if (ret < 0)
return ret;
+ ret = ucsi_register_plug(con);
+ if (ret < 0)
+ return ret;
+
+ ret = ucsi_register_altmodes(con, UCSI_RECIPIENT_SOP_P);
+ if (ret < 0)
+ return ret;
+
return 0;
}
diff --git a/drivers/usb/typec/ucsi/ucsi.h b/drivers/usb/typec/ucsi/ucsi.h
index b89fae82e8ce7..32daf5f586505 100644
--- a/drivers/usb/typec/ucsi/ucsi.h
+++ b/drivers/usb/typec/ucsi/ucsi.h
@@ -429,9 +429,11 @@ struct ucsi_connector {
struct typec_port *port;
struct typec_partner *partner;
struct typec_cable *cable;
+ struct typec_plug *plug;
struct typec_altmode *port_altmode[UCSI_MAX_ALTMODES];
struct typec_altmode *partner_altmode[UCSI_MAX_ALTMODES];
+ struct typec_altmode *plug_altmode[UCSI_MAX_ALTMODES];
struct typec_capability typec_cap;
--
2.44.0.rc1.240.g4c46232300-goog
^ permalink raw reply related [flat|nested] 2+ messages in thread
end of thread, other threads:[~2024-02-29 23:28 UTC | newest]
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2024-02-29 23:26 [PATCH v3 0/4] usb: typec: ucsi: Expand SOP/SOP' Discovery Jameson Thies
2024-02-29 23:26 ` [PATCH v3 4/4] usb: typec: ucsi: Register SOP' alternate modes with cable plug Jameson Thies
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