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AJvYcCX7Nba5HOSmP89WDd5IuokbzUSqLdIHIMyAv90JPfxGlDhoe/sif1mZN1SYe7dssAdlkRSHG1JnttqcntqSZjSNKZXCG3XTTfojvHOn X-Gm-Message-State: AOJu0YweL3gJoShJmj9XryV54OVK6W73e6EBVLVyRisGmnpbneQGV6Bh g+MdF0or7I9C528VBA48c4dU5No4+c+BELUAG5CmL5+XQ04x3ydnA/CrNHvNGwCusDKlKUcwVsp YlQ== X-Received: from jthies.c.googlers.com ([fda3:e722:ac3:cc00:20:ed76:c0a8:23db]) (user=jthies job=sendgmr) by 2002:a25:dc0c:0:b0:dcd:25be:aefb with SMTP id y12-20020a25dc0c000000b00dcd25beaefbmr233082ybe.13.1709171560541; Wed, 28 Feb 2024 17:52:40 -0800 (PST) Date: Thu, 29 Feb 2024 01:52:21 +0000 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: Mime-Version: 1.0 X-Mailer: git-send-email 2.44.0.rc1.240.g4c46232300-goog Message-ID: <20240229015221.3668955-1-jthies@google.com> Subject: [PATCH v3 1/4] usb: typec: ucsi: Clean up UCSI_CABLE_PROP macros From: Jameson Thies To: heikki.krogerus@linux.intel.com, linux-usb@vger.kernel.org Cc: jthies@google.com, pmalani@chromium.org, bleung@google.com, abhishekpandit@chromium.org, andersson@kernel.org, dmitry.baryshkov@linaro.org, fabrice.gasnier@foss.st.com, gregkh@linuxfoundation.org, hdegoede@redhat.com, neil.armstrong@linaro.org, rajaram.regupathy@intel.com, saranya.gopal@intel.com, linux-kernel@vger.kernel.org, stable@vger.kernel.org, Benson Leung X-getmail-retrieved-from-mailbox: INBOX X-GMAIL-THRID: 1792182848307269728 X-GMAIL-MSGID: 1792196298364703115 Clean up UCSI_CABLE_PROP macros by fixing a bitmask shifting error for plug type and updating the modal support macro for consistent naming. Fixes: 3cf657f07918 ("usb: typec: ucsi: Remove all bit-fields") Cc: stable@vger.kernel.org Reviewed-by: Benson Leung Reviewed-by: Prashant Malani Reviewed-by: Dmitry Baryshkov Signed-off-by: Jameson Thies --- Changes in v3: - Fixed CC stable. Changes in v2: - Tested on usb-testing branch merged with chromeOS 6.8-rc2 kernel. drivers/usb/typec/ucsi/ucsi.h | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/usb/typec/ucsi/ucsi.h b/drivers/usb/typec/ucsi/ucsi.h index 7e35ffbe0a6f2..469a2baf472e4 100644 --- a/drivers/usb/typec/ucsi/ucsi.h +++ b/drivers/usb/typec/ucsi/ucsi.h @@ -259,12 +259,12 @@ struct ucsi_cable_property { #define UCSI_CABLE_PROP_FLAG_VBUS_IN_CABLE BIT(0) #define UCSI_CABLE_PROP_FLAG_ACTIVE_CABLE BIT(1) #define UCSI_CABLE_PROP_FLAG_DIRECTIONALITY BIT(2) -#define UCSI_CABLE_PROP_FLAG_PLUG_TYPE(_f_) ((_f_) & GENMASK(3, 0)) +#define UCSI_CABLE_PROP_FLAG_PLUG_TYPE(_f_) (((_f_) & GENMASK(4, 3)) >> 3) #define UCSI_CABLE_PROPERTY_PLUG_TYPE_A 0 #define UCSI_CABLE_PROPERTY_PLUG_TYPE_B 1 #define UCSI_CABLE_PROPERTY_PLUG_TYPE_C 2 #define UCSI_CABLE_PROPERTY_PLUG_OTHER 3 -#define UCSI_CABLE_PROP_MODE_SUPPORT BIT(5) +#define UCSI_CABLE_PROP_FLAG_MODE_SUPPORT BIT(5) u8 latency; } __packed; From patchwork Thu Feb 29 01:53:08 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jameson Thies X-Patchwork-Id: 208161 Return-Path: Delivered-To: ouuuleilei@gmail.com Received: by 2002:a05:7301:2097:b0:108:e6aa:91d0 with SMTP id gs23csp121937dyb; Wed, 28 Feb 2024 17:53:56 -0800 (PST) X-Forwarded-Encrypted: i=3; AJvYcCU4+UPUqNZZMXi7xYY+VDjiHyr1YCjyeHrHfnYkgMLGeD4/UmyIjy7xCW8h4xmGvNty+9htCNWoS9MVnLp28B/Q3Q94qg== X-Google-Smtp-Source: AGHT+IHdFuJ0GB/ZuMMBbS+Y1MZlmZgYUfPbN1CxbWzqh8mJqUFaK/Dikc3vwcVOxUvev6+iP459 X-Received: by 2002:a37:ef15:0:b0:787:fd08:1d0 with SMTP id j21-20020a37ef15000000b00787fd0801d0mr139132qkk.50.1709171636439; Wed, 28 Feb 2024 17:53:56 -0800 (PST) ARC-Seal: i=2; a=rsa-sha256; t=1709171636; cv=pass; d=google.com; s=arc-20160816; b=t8sVktFkLKXp/VULlYg6HHI+0Y0XFCpkx5YsWvM1pZlXHHMHjwfQI59r6P5JlTgHA/ TDcfkODx5Vpjr5+o3z8Ogm67mB1Fy6TzgB3EST5VYbNkUjYtt4qw4dEfye+Igp4he79P g/xsdphhWaYQXlxy3/ajl1BJ5z2oQZBbHs4gWW4gDIfApJKqGs8IC7mMA1ztp9t39rdD 3wtkxZMw6RdxkS14s2N18JDpBxDTU3RSNC52QsTPKHlPr0R4pUS7LP6T7+y0u+DfFmoy rTFD7u+Z/SDRI9NG243WQy+MLP/VcfMPSC7rDMQng0dgqCAu4tgRAG66zfc/o+QwcP40 zbPw== ARC-Message-Signature: i=2; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=cc:to:from:subject:message-id:mime-version:list-unsubscribe :list-subscribe:list-id:precedence:date:dkim-signature; bh=N9kAHr6PseqJ6J9peq4yN8LHGuh8P9E7ag/V2tVJ+14=; fh=LX2shkHCVKsWjrvXeJyJW8lE2/GSqQ2U9gCYs4Wr+fY=; b=wgIwQMTbgIIYl61wzrgC5qUcKHQBgjBMiHtAKjnM1b4EvBOScPW1oYbievvv85KR6o 5v6Yl1FRgzoq/KqXqE0qfKudyyvdGNqdkwH2JBeF9tWlrxkpR0sXaHLkShYMu7R6UFIx AJek3svRFKP3XeJxh4y94modE+ur8cALLZMsc+2roVRJVq2PTu+vO+1nYjG4JSiHRw8W uCDTk4Pw+fupuNkROjfZGFbeY8+I7ax/EgYPBJxyTk0u2XS2VWJzIgDWIptuN6wWTbXh f/yES9MWAChkrxpb4YKkK79Jl6RYjNSRNMSJKdKyHGwjvD8qWlT+2czqoX8Mb6gxM2La dVOQ==; dara=google.com ARC-Authentication-Results: i=2; mx.google.com; dkim=pass header.i=@google.com header.s=20230601 header.b=hjotJDf0; arc=pass (i=1 spf=pass spfdomain=flex--jthies.bounces.google.com dkim=pass dkdomain=google.com dmarc=pass fromdomain=google.com); spf=pass (google.com: domain of linux-kernel+bounces-86016-ouuuleilei=gmail.com@vger.kernel.org designates 2604:1380:45d1:ec00::1 as permitted sender) smtp.mailfrom="linux-kernel+bounces-86016-ouuuleilei=gmail.com@vger.kernel.org"; dmarc=pass (p=REJECT sp=REJECT dis=NONE) header.from=google.com Received: from ny.mirrors.kernel.org (ny.mirrors.kernel.org. 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AJvYcCViUqg4tJ+4omRlS2//uIuRRpYINN+4KDwaGv9ReJAmgYh7k2kvubO/v14tb32hMDIi1qNUkPZUIX9iz7D7/bfTDMrEC1TouiqaPKiK X-Gm-Message-State: AOJu0YyvNrdbK/ogjHmpdNTjRY1SOE4n7EixB7R016Utinnto0tCKV0G YNi909jQci+zvV3aB7XcAbtRpWXBZlps3f6MgPZE+Fu+UEsLMqJ9I0rmQEVaIwZ7LOpTeiHbkRl SNw== X-Received: from jthies.c.googlers.com ([fda3:e722:ac3:cc00:20:ed76:c0a8:23db]) (user=jthies job=sendgmr) by 2002:a81:9849:0:b0:609:3c46:1889 with SMTP id p70-20020a819849000000b006093c461889mr189060ywg.7.1709171615446; Wed, 28 Feb 2024 17:53:35 -0800 (PST) Date: Thu, 29 Feb 2024 01:53:08 +0000 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: Mime-Version: 1.0 X-Mailer: git-send-email 2.44.0.rc1.240.g4c46232300-goog Message-ID: <20240229015308.3669513-1-jthies@google.com> Subject: [PATCH v3 2/4] usb: typec: ucsi: Register cables based on GET_CABLE_PROPERTY From: Jameson Thies To: heikki.krogerus@linux.intel.com, linux-usb@vger.kernel.org Cc: jthies@google.com, pmalani@chromium.org, bleung@google.com, abhishekpandit@chromium.org, andersson@kernel.org, dmitry.baryshkov@linaro.org, fabrice.gasnier@foss.st.com, gregkh@linuxfoundation.org, hdegoede@redhat.com, neil.armstrong@linaro.org, rajaram.regupathy@intel.com, saranya.gopal@intel.com, linux-kernel@vger.kernel.org, Benson Leung X-getmail-retrieved-from-mailbox: INBOX X-GMAIL-THRID: 1792181934195900494 X-GMAIL-MSGID: 1792196358136417833 Register cables with the Type-C Connector Class in the UCSI driver based on the PPM response to GET_CABLE_PROPERTY. Registered cable properties include plug type, cable type and major revision. Reviewed-by: Benson Leung Reviewed-by: Prashant Malani Reviewed-by: Dmitry Baryshkov Reviewed-by: Heikki Krogerus Signed-off-by: Jameson Thies --- Expected cable properties populate the USB Type-C connector class sysfs paths: nospike-rev4 /sys/class/typec # ls port0-cable device identity plug_type port0-plug0 power subsystem type uevent usb_power_delivery_revision 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 | 73 +++++++++++++++++++++++++++++++++++ drivers/usb/typec/ucsi/ucsi.h | 5 +++ 2 files changed, 78 insertions(+) diff --git a/drivers/usb/typec/ucsi/ucsi.c b/drivers/usb/typec/ucsi/ucsi.c index ae105383e69e7..7c84687b5d1a3 100644 --- a/drivers/usb/typec/ucsi/ucsi.c +++ b/drivers/usb/typec/ucsi/ucsi.c @@ -734,6 +734,52 @@ static void ucsi_unregister_partner_pdos(struct ucsi_connector *con) con->partner_pd = NULL; } +static int ucsi_register_cable(struct ucsi_connector *con) +{ + struct typec_cable *cable; + struct typec_cable_desc desc = {}; + + switch (UCSI_CABLE_PROP_FLAG_PLUG_TYPE(con->cable_prop.flags)) { + case UCSI_CABLE_PROPERTY_PLUG_TYPE_A: + desc.type = USB_PLUG_TYPE_A; + break; + case UCSI_CABLE_PROPERTY_PLUG_TYPE_B: + desc.type = USB_PLUG_TYPE_B; + break; + case UCSI_CABLE_PROPERTY_PLUG_TYPE_C: + desc.type = USB_PLUG_TYPE_C; + break; + default: + desc.type = USB_PLUG_NONE; + break; + } + + desc.active = !!(UCSI_CABLE_PROP_FLAG_ACTIVE_CABLE & + con->cable_prop.flags); + desc.pd_revision = UCSI_CABLE_PROP_FLAG_PD_MAJOR_REV_AS_BCD( + con->cable_prop.flags); + + cable = typec_register_cable(con->port, &desc); + if (IS_ERR(cable)) { + dev_err(con->ucsi->dev, + "con%d: failed to register cable (%ld)\n", con->num, + PTR_ERR(cable)); + return PTR_ERR(cable); + } + + con->cable = cable; + return 0; +} + +static void ucsi_unregister_cable(struct ucsi_connector *con) +{ + if (!con->cable) + return; + + typec_unregister_cable(con->cable); + con->cable = NULL; +} + static void ucsi_pwr_opmode_change(struct ucsi_connector *con) { switch (UCSI_CONSTAT_PWR_OPMODE(con->status.flags)) { @@ -807,6 +853,7 @@ static void ucsi_unregister_partner(struct ucsi_connector *con) typec_partner_set_usb_power_delivery(con->partner, NULL); ucsi_unregister_partner_pdos(con); ucsi_unregister_altmodes(con, UCSI_RECIPIENT_SOP); + ucsi_unregister_cable(con); typec_unregister_partner(con->partner); con->partner = NULL; } @@ -907,6 +954,30 @@ static int ucsi_check_connection(struct ucsi_connector *con) return 0; } +static int ucsi_check_cable(struct ucsi_connector *con) +{ + u64 command; + int ret; + + if (con->cable) + return 0; + + command = UCSI_GET_CABLE_PROPERTY | UCSI_CONNECTOR_NUMBER(con->num); + ret = ucsi_send_command(con->ucsi, command, &con->cable_prop, + sizeof(con->cable_prop)); + if (ret < 0) { + dev_err(con->ucsi->dev, "GET_CABLE_PROPERTY failed (%d)\n", + ret); + return ret; + } + + ret = ucsi_register_cable(con); + if (ret < 0) + return ret; + + return 0; +} + static void ucsi_handle_connector_change(struct work_struct *work) { struct ucsi_connector *con = container_of(work, struct ucsi_connector, @@ -948,6 +1019,7 @@ static void ucsi_handle_connector_change(struct work_struct *work) ucsi_register_partner(con); ucsi_partner_task(con, ucsi_check_connection, 1, HZ); ucsi_partner_task(con, ucsi_check_connector_capability, 1, HZ); + ucsi_partner_task(con, ucsi_check_cable, 1, HZ); if (UCSI_CONSTAT_PWR_OPMODE(con->status.flags) == UCSI_CONSTAT_PWR_OPMODE_PD) @@ -1346,6 +1418,7 @@ static int ucsi_register_port(struct ucsi *ucsi, struct ucsi_connector *con) ucsi_register_partner(con); ucsi_pwr_opmode_change(con); ucsi_port_psy_changed(con); + ucsi_check_cable(con); } /* Only notify USB controller if partner supports USB data */ diff --git a/drivers/usb/typec/ucsi/ucsi.h b/drivers/usb/typec/ucsi/ucsi.h index 469a2baf472e4..f0aabef0b7c64 100644 --- a/drivers/usb/typec/ucsi/ucsi.h +++ b/drivers/usb/typec/ucsi/ucsi.h @@ -265,6 +265,9 @@ struct ucsi_cable_property { #define UCSI_CABLE_PROPERTY_PLUG_TYPE_C 2 #define UCSI_CABLE_PROPERTY_PLUG_OTHER 3 #define UCSI_CABLE_PROP_FLAG_MODE_SUPPORT BIT(5) +#define UCSI_CABLE_PROP_FLAG_PD_MAJOR_REV(_f_) (((_f_) & GENMASK(7, 6)) >> 6) +#define UCSI_CABLE_PROP_FLAG_PD_MAJOR_REV_AS_BCD(_f_) \ + UCSI_SPEC_REVISION_TO_BCD(UCSI_CABLE_PROP_FLAG_PD_MAJOR_REV(_f_)) u8 latency; } __packed; @@ -400,6 +403,7 @@ struct ucsi_connector { struct typec_port *port; struct typec_partner *partner; + struct typec_cable *cable; struct typec_altmode *port_altmode[UCSI_MAX_ALTMODES]; struct typec_altmode *partner_altmode[UCSI_MAX_ALTMODES]; @@ -408,6 +412,7 @@ struct ucsi_connector { struct ucsi_connector_status status; struct ucsi_connector_capability cap; + struct ucsi_cable_property cable_prop; struct power_supply *psy; struct power_supply_desc psy_desc; u32 rdo; From patchwork Thu Feb 29 01:53:46 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jameson Thies X-Patchwork-Id: 208162 Return-Path: Delivered-To: ouuuleilei@gmail.com Received: by 2002:a05:7301:2097:b0:108:e6aa:91d0 with SMTP id gs23csp122011dyb; Wed, 28 Feb 2024 17:54:13 -0800 (PST) X-Forwarded-Encrypted: i=3; AJvYcCXYzprtAbO53nFBGH2bUjOrz53w1W2IxT12q+xFgvyxPFhN8rmWKfkS0rbsDhHoGqmYaATVhfo6mxY54wlQabnM4HJR8A== X-Google-Smtp-Source: AGHT+IHiXDxxl+KcLbiGnT95hNeHYJYICylsqCmW4WgaIMKehqYzL4d1kKTK9lq2tnBKjpk+M7Il X-Received: by 2002:a0c:dd02:0:b0:68f:2d61:e72c with SMTP id u2-20020a0cdd02000000b0068f2d61e72cmr941238qvk.28.1709171652918; 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AJvYcCVnAhDisOOXaa0UM61Ot2mNb7Os8Tmq2rGSjWVl8RdZrnatSIIE+vU/YiJwc0W1in8OaSNH/LKrC/oB0jWDZQWHa+82pHQ+o1klOSXc X-Gm-Message-State: AOJu0Yyki5UlESip8GDryqM7H3wsA0H4jkt6RCvbIbSXwgfDnpBTQPgb jHGShvUyoWGOKDfHxTnGsXW/VfWmaHTlkupvv9W53F06R+f4qP6OYj7HVW4lfEXvlqcfTD24UHs 7KA== X-Received: from jthies.c.googlers.com ([fda3:e722:ac3:cc00:20:ed76:c0a8:23db]) (user=jthies job=sendgmr) by 2002:a0d:c346:0:b0:609:3a1f:e852 with SMTP id f67-20020a0dc346000000b006093a1fe852mr85473ywd.2.1709171634369; Wed, 28 Feb 2024 17:53:54 -0800 (PST) Date: Thu, 29 Feb 2024 01:53:46 +0000 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: Mime-Version: 1.0 X-Mailer: git-send-email 2.44.0.rc1.240.g4c46232300-goog Message-ID: <20240229015347.3670266-1-jthies@google.com> Subject: [PATCH v3 3/4] usb: typec: ucsi: Register SOP/SOP' Discover Identity Responses From: Jameson Thies To: heikki.krogerus@linux.intel.com, linux-usb@vger.kernel.org Cc: jthies@google.com, pmalani@chromium.org, bleung@google.com, abhishekpandit@chromium.org, andersson@kernel.org, dmitry.baryshkov@linaro.org, fabrice.gasnier@foss.st.com, gregkh@linuxfoundation.org, hdegoede@redhat.com, neil.armstrong@linaro.org, rajaram.regupathy@intel.com, saranya.gopal@intel.com, linux-kernel@vger.kernel.org X-getmail-retrieved-from-mailbox: INBOX X-GMAIL-THRID: 1792181952600385397 X-GMAIL-MSGID: 1792196375141194564 Register SOP and SOP' Discover Identity responses with the USB Type-C Connector Class as partner and cable identities, respectively. Discover Identity responses are requested from the PPM using the GET_PD_MESSAGE UCSI command. Signed-off-by: Jameson Thies --- GET_PD_MESSAGE responses from the PPM populate partner and cable identity in sysfs: nospike-rev4 /sys/class/typec # ls port0-partner/identity/ cert_stat id_header product product_type_vdo1 product_type_vdo2 product_type_vdo3 nospike-rev4 /sys/class/typec # ls port0-cable/identity/ cert_stat id_header product product_type_vdo1 product_type_vdo2 product_type_vdo3 Changes in v3: - None. Changes in v2: - Re-ordered memset call and null assignment when unregistering partners and cables. - Supports registering partner and cable identity with UCSI versions before v2.0. - Shortened lines to within 80 characters with the exception of two error log lines with three indentations. - Tested on usb-testing branch merged with chromeOS 6.8-rc2 kernel. drivers/usb/typec/ucsi/ucsi.c | 125 ++++++++++++++++++++++++++++++++++ drivers/usb/typec/ucsi/ucsi.h | 29 ++++++++ 2 files changed, 154 insertions(+) diff --git a/drivers/usb/typec/ucsi/ucsi.c b/drivers/usb/typec/ucsi/ucsi.c index 7c84687b5d1a3..4088422b33c74 100644 --- a/drivers/usb/typec/ucsi/ucsi.c +++ b/drivers/usb/typec/ucsi/ucsi.c @@ -646,6 +646,121 @@ static int ucsi_get_src_pdos(struct ucsi_connector *con) return ret; } +static int ucsi_read_identity(struct ucsi_connector *con, u8 recipient, + struct usb_pd_identity *id) +{ + struct ucsi *ucsi = con->ucsi; + struct ucsi_pd_message_disc_id resp = {}; + u64 command; + int ret; + + if (ucsi->version < UCSI_VERSION_2_0) { + /* + * Before UCSI v2.0, MESSAGE_IN is 16 bytes which cannot fit + * the 28 byte identity response including the VDM header. + * First request the VDM header, ID Header VDO, Cert Stat VDO + * and Product VDO. + */ + command = UCSI_COMMAND(UCSI_GET_PD_MESSAGE) | + UCSI_CONNECTOR_NUMBER(con->num); + command |= UCSI_GET_PD_MESSAGE_RECIPIENT(recipient); + command |= UCSI_GET_PD_MESSAGE_OFFSET(0); + command |= UCSI_GET_PD_MESSAGE_BYTES(0x10); + command |= UCSI_GET_PD_MESSAGE_TYPE( + UCSI_GET_PD_MESSAGE_TYPE_IDENTITY); + + ret = ucsi_send_command(ucsi, command, &resp, 0x10); + if (ret < 0) { + dev_err(ucsi->dev, + "UCSI_GET_PD_MESSAGE v1.2 failed first request (%d)\n", + ret); + return ret; + } + + /* Then request Product Type VDO1 through Product Type VDO3. */ + command = UCSI_COMMAND(UCSI_GET_PD_MESSAGE) | + UCSI_CONNECTOR_NUMBER(con->num); + command |= UCSI_GET_PD_MESSAGE_RECIPIENT(recipient); + command |= UCSI_GET_PD_MESSAGE_OFFSET(0x10); + command |= UCSI_GET_PD_MESSAGE_BYTES(0xc); + command |= UCSI_GET_PD_MESSAGE_TYPE( + UCSI_GET_PD_MESSAGE_TYPE_IDENTITY); + + ret = ucsi_send_command(ucsi, command, &resp.vdo[0], 0xc); + if (ret < 0) { + dev_err(ucsi->dev, + "UCSI_GET_PD_MESSAGE v1.2 failed second request (%d)\n", + ret); + return ret; + } + } else { + /* + * In UCSI v2.0 and after, MESSAGE_IN is large enough to request + * the large enough to request the full Discover Identity + * response at once. + */ + command = UCSI_COMMAND(UCSI_GET_PD_MESSAGE) | + UCSI_CONNECTOR_NUMBER(con->num); + command |= UCSI_GET_PD_MESSAGE_RECIPIENT(recipient); + /* VDM Header + 6 VDOs (0x1c bytes) without an offset */ + command |= UCSI_GET_PD_MESSAGE_OFFSET(0); + command |= UCSI_GET_PD_MESSAGE_BYTES(0x1c); + command |= UCSI_GET_PD_MESSAGE_TYPE( + UCSI_GET_PD_MESSAGE_TYPE_IDENTITY); + + ret = ucsi_send_command(ucsi, command, &resp, sizeof(resp)); + if (ret < 0) { + dev_err(ucsi->dev, "UCSI_GET_PD_MESSAGE failed (%d)\n", + ret); + return ret; + } + } + + id->id_header = resp.id_header; + id->cert_stat = resp.cert_stat; + id->product = resp.product; + id->vdo[0] = resp.vdo[0]; + id->vdo[1] = resp.vdo[1]; + id->vdo[2] = resp.vdo[2]; + return 0; +} + +static int ucsi_get_partner_identity(struct ucsi_connector *con) +{ + int ret; + + ret = ucsi_read_identity(con, UCSI_RECIPIENT_SOP, + &con->partner_identity); + if (ret < 0) + return ret; + + ret = typec_partner_set_identity(con->partner); + if (ret < 0) { + dev_err(con->ucsi->dev, "Failed to set partner identity (%d)\n", + ret); + } + + return ret; +} + +static int ucsi_get_cable_identity(struct ucsi_connector *con) +{ + int ret; + + ret = ucsi_read_identity(con, UCSI_RECIPIENT_SOP_P, + &con->cable_identity); + if (ret < 0) + return ret; + + ret = typec_cable_set_identity(con->cable); + if (ret < 0) { + dev_err(con->ucsi->dev, "Failed to set cable identity (%d)\n", + ret); + } + + return ret; +} + static int ucsi_check_altmodes(struct ucsi_connector *con) { int ret, num_partner_am; @@ -754,6 +869,7 @@ static int ucsi_register_cable(struct ucsi_connector *con) break; } + desc.identity = &con->cable_identity; desc.active = !!(UCSI_CABLE_PROP_FLAG_ACTIVE_CABLE & con->cable_prop.flags); desc.pd_revision = UCSI_CABLE_PROP_FLAG_PD_MAJOR_REV_AS_BCD( @@ -777,6 +893,7 @@ static void ucsi_unregister_cable(struct ucsi_connector *con) return; typec_unregister_cable(con->cable); + memset(&con->cable_identity, 0, sizeof(con->cable_identity)); con->cable = NULL; } @@ -827,6 +944,7 @@ static int ucsi_register_partner(struct ucsi_connector *con) break; } + desc.identity = &con->partner_identity; desc.usb_pd = pwr_opmode == UCSI_CONSTAT_PWR_OPMODE_PD; desc.pd_revision = UCSI_CONCAP_FLAG_PARTNER_PD_MAJOR_REV_AS_BCD(con->cap.flags); @@ -855,6 +973,7 @@ static void ucsi_unregister_partner(struct ucsi_connector *con) ucsi_unregister_altmodes(con, UCSI_RECIPIENT_SOP); ucsi_unregister_cable(con); typec_unregister_partner(con->partner); + memset(&con->partner_identity, 0, sizeof(con->partner_identity)); con->partner = NULL; } @@ -975,6 +1094,10 @@ static int ucsi_check_cable(struct ucsi_connector *con) if (ret < 0) return ret; + ret = ucsi_get_cable_identity(con); + if (ret < 0) + return ret; + return 0; } @@ -1019,6 +1142,7 @@ static void ucsi_handle_connector_change(struct work_struct *work) ucsi_register_partner(con); ucsi_partner_task(con, ucsi_check_connection, 1, HZ); ucsi_partner_task(con, ucsi_check_connector_capability, 1, HZ); + ucsi_partner_task(con, ucsi_get_partner_identity, 1, HZ); ucsi_partner_task(con, ucsi_check_cable, 1, HZ); if (UCSI_CONSTAT_PWR_OPMODE(con->status.flags) == @@ -1418,6 +1542,7 @@ static int ucsi_register_port(struct ucsi *ucsi, struct ucsi_connector *con) ucsi_register_partner(con); ucsi_pwr_opmode_change(con); ucsi_port_psy_changed(con); + ucsi_get_partner_identity(con); ucsi_check_cable(con); } diff --git a/drivers/usb/typec/ucsi/ucsi.h b/drivers/usb/typec/ucsi/ucsi.h index f0aabef0b7c64..b89fae82e8ce7 100644 --- a/drivers/usb/typec/ucsi/ucsi.h +++ b/drivers/usb/typec/ucsi/ucsi.h @@ -106,6 +106,7 @@ void ucsi_connector_change(struct ucsi *ucsi, u8 num); #define UCSI_GET_CABLE_PROPERTY 0x11 #define UCSI_GET_CONNECTOR_STATUS 0x12 #define UCSI_GET_ERROR_STATUS 0x13 +#define UCSI_GET_PD_MESSAGE 0x15 #define UCSI_CONNECTOR_NUMBER(_num_) ((u64)(_num_) << 16) #define UCSI_COMMAND(_cmd_) ((_cmd_) & 0xff) @@ -159,6 +160,18 @@ void ucsi_connector_change(struct ucsi *ucsi, u8 num); #define UCSI_MAX_PDOS (4) #define UCSI_GET_PDOS_SRC_PDOS ((u64)1 << 34) +/* GET_PD_MESSAGE command bits */ +#define UCSI_GET_PD_MESSAGE_RECIPIENT(_r_) ((u64)(_r_) << 23) +#define UCSI_GET_PD_MESSAGE_OFFSET(_r_) ((u64)(_r_) << 26) +#define UCSI_GET_PD_MESSAGE_BYTES(_r_) ((u64)(_r_) << 34) +#define UCSI_GET_PD_MESSAGE_TYPE(_r_) ((u64)(_r_) << 42) +#define UCSI_GET_PD_MESSAGE_TYPE_SNK_CAP_EXT 0 +#define UCSI_GET_PD_MESSAGE_TYPE_SRC_CAP_EXT 1 +#define UCSI_GET_PD_MESSAGE_TYPE_BAT_CAP 2 +#define UCSI_GET_PD_MESSAGE_TYPE_BAT_STAT 3 +#define UCSI_GET_PD_MESSAGE_TYPE_IDENTITY 4 +#define UCSI_GET_PD_MESSAGE_TYPE_REVISION 5 + /* -------------------------------------------------------------------------- */ /* Error information returned by PPM in response to GET_ERROR_STATUS command. */ @@ -338,6 +351,18 @@ struct ucsi_connector_status { ((get_unaligned_le32(&(_p_)[5]) & GENMASK(16, 1)) >> 1) } __packed; +/* + * Data structure filled by PPM in response to GET_PD_MESSAGE command with the + * Response Message Type set to Discover Identity Response. + */ +struct ucsi_pd_message_disc_id { + u32 vdm_header; + u32 id_header; + u32 cert_stat; + u32 product; + u32 vdo[3]; +} __packed; + /* -------------------------------------------------------------------------- */ struct ucsi_debugfs_entry { @@ -428,6 +453,10 @@ struct ucsi_connector { struct usb_power_delivery_capabilities *partner_sink_caps; struct usb_role_switch *usb_role_sw; + + /* USB PD identity */ + struct usb_pd_identity partner_identity; + struct usb_pd_identity cable_identity; }; int ucsi_send_command(struct ucsi *ucsi, u64 command, From patchwork Thu Feb 29 01:54:02 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jameson Thies X-Patchwork-Id: 208163 Return-Path: Delivered-To: ouuuleilei@gmail.com Received: by 2002:a05:7301:2097:b0:108:e6aa:91d0 with SMTP id gs23csp122108dyb; Wed, 28 Feb 2024 17:54:31 -0800 (PST) X-Forwarded-Encrypted: i=3; AJvYcCUeIli/MqQ09k66+LYy6ke8SXgx+Nj5r0OqumPIA6fZvgyhbYWYTtODWFJUTzua0KYtpeVQNIW9HMueH7a3q3F25ne+0Q== X-Google-Smtp-Source: AGHT+IFEcBdJxEwy9AEFD3Y6B1oPUxt9x6pPmNEBogeT+2V0OTPV8wf5qLW3Vd0pEO7D9+D4AJbB X-Received: by 2002:a17:906:6bd7:b0:a44:415d:fa3c with SMTP id t23-20020a1709066bd700b00a44415dfa3cmr164939ejs.42.1709171670754; 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AJvYcCVpjquPF9Ib+rxIG2Lg2zf/eBcJaBIeCQBxp1BGga06g3nE4RMKMkfHUu2TZVRhK3YYzllF/nut+tl43i2rj8+G5gUDZJHlNG4s1M0V X-Gm-Message-State: AOJu0YxAuP0isCd+P+Z+KQZbn+jlTKj/jUU1heTipWiy/kGncVpy3RkK VyyPkKe9R3gGKQmlIeonTRJSy+0Jq8RAAsSlkOLphR2Cl7z/0hf9RhU4wGzoJAmr+rdzt+J2NCG 7uQ== X-Received: from jthies.c.googlers.com ([fda3:e722:ac3:cc00:20:ed76:c0a8:23db]) (user=jthies job=sendgmr) by 2002:a05:690c:2d04:b0:608:b57f:59b2 with SMTP id eq4-20020a05690c2d0400b00608b57f59b2mr84148ywb.3.1709171652170; Wed, 28 Feb 2024 17:54:12 -0800 (PST) Date: Thu, 29 Feb 2024 01:54:02 +0000 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: Mime-Version: 1.0 X-Mailer: git-send-email 2.44.0.rc1.240.g4c46232300-goog Message-ID: <20240229015402.3671136-1-jthies@google.com> Subject: [PATCH v3 4/4] usb: typec: ucsi: Register SOP' alternate modes with cable plug From: Jameson Thies To: heikki.krogerus@linux.intel.com, linux-usb@vger.kernel.org Cc: jthies@google.com, pmalani@chromium.org, bleung@google.com, abhishekpandit@chromium.org, andersson@kernel.org, dmitry.baryshkov@linaro.org, fabrice.gasnier@foss.st.com, gregkh@linuxfoundation.org, hdegoede@redhat.com, neil.armstrong@linaro.org, rajaram.regupathy@intel.com, saranya.gopal@intel.com, linux-kernel@vger.kernel.org, Benson Leung X-getmail-retrieved-from-mailbox: INBOX X-GMAIL-THRID: 1792181972173121854 X-GMAIL-MSGID: 1792196394100330461 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 Reviewed-by: Prashant Malani Reviewed-by: Heikki Krogerus Signed-off-by: Jameson Thies --- 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;