From patchwork Tue May 28 20:04:10 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: =?utf-8?q?Thomas_Wei=C3=9Fschuh?= X-Patchwork-Id: 800822 Received: from todd.t-8ch.de (todd.t-8ch.de [159.69.126.157]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 4589C178398; Tue, 28 May 2024 20:05:15 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=159.69.126.157 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1716926719; cv=none; b=stAvsiwMeMQ4SrKaEztJux32OhZDn+SlgHkrcGHYFwl5xoN1ExttL5HDNPHGYSN1JqWA5KJzPNu1yvwkHtlCMrpYPsOgztAHD2XVoX4axrwoXbUuz569N65Rp9BhuHmGI2SrT8zARbc0lWqXSMxGUPd3qx4XzAKQaq7CcM4FI4A= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1716926719; c=relaxed/simple; bh=JbYQHnPT7R8bbx48TFbQXDrU5PRM/0uyA9vkGt576is=; h=From:Date:Subject:MIME-Version:Content-Type:Message-Id:References: In-Reply-To:To:Cc; b=C9l7g8ScWBOraRJXd3UMj5TvTlNaN0X+TJQiMYOwXhxp6k3xh3T1KCUa+aLN0+bWtB1KdpFWRwO2qrX2xXcrkWct8psbXJ4daoC0eaTfipCoscrIxzajh5S+PRal9bwTy59vKDlyZ6LPFcKggG1Tb+bEKeSBoY6Mmv4SidRf+kQ= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=weissschuh.net; spf=pass smtp.mailfrom=weissschuh.net; dkim=pass (1024-bit key) header.d=weissschuh.net header.i=@weissschuh.net header.b=bLejnAhw; arc=none smtp.client-ip=159.69.126.157 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=weissschuh.net Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=weissschuh.net Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=weissschuh.net header.i=@weissschuh.net header.b="bLejnAhw" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=weissschuh.net; s=mail; t=1716926707; bh=JbYQHnPT7R8bbx48TFbQXDrU5PRM/0uyA9vkGt576is=; h=From:Date:Subject:References:In-Reply-To:To:Cc:From; b=bLejnAhw/GmdlkCX4xAaQFhl8q971F5D9s5s2sJfaHP2LYW4EVIsqkszh41oCkAI6 HwRsFZ048LqZmDKk9TdRdG6hjuisKnAV+5Ue/QT0lmqZYDjVku8SgDi2PK3mCV+WJK xpNH0+PMQq7pe18XRGPrATOtH0MAOzr3US3noDlQ= From: =?utf-8?q?Thomas_Wei=C3=9Fschuh?= Date: Tue, 28 May 2024 22:04:10 +0200 Subject: [PATCH v2 1/3] platform/chrome: Update binary interface for EC-based charge control Precedence: bulk X-Mailing-List: linux-pm@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Message-Id: <20240528-cros_ec-charge-control-v2-1-81fb27e1cff4@weissschuh.net> References: <20240528-cros_ec-charge-control-v2-0-81fb27e1cff4@weissschuh.net> In-Reply-To: <20240528-cros_ec-charge-control-v2-0-81fb27e1cff4@weissschuh.net> To: Benson Leung , Guenter Roeck , Sebastian Reichel , Lee Jones , =?utf-8?q?Thomas_Wei=C3=9Fschuh?= Cc: chrome-platform@lists.linux.dev, linux-kernel@vger.kernel.org, linux-pm@vger.kernel.org, Mario Limonciello , Dustin Howett , Stephen Horvath , Rajas Paranjpe , =?utf-8?q?Thomas_Wei=C3=9Fschuh?= X-Mailer: b4 0.13.0 X-Developer-Signature: v=1; a=ed25519-sha256; t=1716926706; l=2691; i=linux@weissschuh.net; s=20221212; h=from:subject:message-id; bh=JbYQHnPT7R8bbx48TFbQXDrU5PRM/0uyA9vkGt576is=; b=LjM+FLqiJVMvC8n7q9IfHO2F4e28kIeTc3GEYi4cjWje8j1BOWTHVBIUy8s+td/vLjUkwO/wf RTidBOH6MsWDNekA/woovjb05qm2EtQ4GHn0mnMoK/llBztyUDRsXSM X-Developer-Key: i=linux@weissschuh.net; a=ed25519; pk=KcycQgFPX2wGR5azS7RhpBqedglOZVgRPfdFSPB1LNw= The charge-control command v2/v3 is more featureful than v1, it additionally supports charge thresholds. The definitions were imported from ChromeOS EC commit 32870d602317 ("squirtle: modify motionsense rotation matrix") Signed-off-by: Thomas Weißschuh --- include/linux/platform_data/cros_ec_commands.h | 49 ++++++++++++++++++++++++-- 1 file changed, 47 insertions(+), 2 deletions(-) diff --git a/include/linux/platform_data/cros_ec_commands.h b/include/linux/platform_data/cros_ec_commands.h index ecc47d5fe239..c35e534e3c3d 100644 --- a/include/linux/platform_data/cros_ec_commands.h +++ b/include/linux/platform_data/cros_ec_commands.h @@ -3809,16 +3809,61 @@ struct ec_params_i2c_write { * discharge the battery. */ #define EC_CMD_CHARGE_CONTROL 0x0096 -#define EC_VER_CHARGE_CONTROL 1 +#define EC_VER_CHARGE_CONTROL 3 enum ec_charge_control_mode { CHARGE_CONTROL_NORMAL = 0, CHARGE_CONTROL_IDLE, CHARGE_CONTROL_DISCHARGE, + /* Add no more entry below. */ + CHARGE_CONTROL_COUNT, +}; + +#define EC_CHARGE_MODE_TEXT \ + { \ + [CHARGE_CONTROL_NORMAL] = "NORMAL", \ + [CHARGE_CONTROL_IDLE] = "IDLE", \ + [CHARGE_CONTROL_DISCHARGE] = "DISCHARGE", \ + } + +enum ec_charge_control_cmd { + EC_CHARGE_CONTROL_CMD_SET = 0, + EC_CHARGE_CONTROL_CMD_GET, +}; + +enum ec_charge_control_flag { + EC_CHARGE_CONTROL_FLAG_NO_IDLE = BIT(0), }; struct ec_params_charge_control { - uint32_t mode; /* enum charge_control_mode */ + uint32_t mode; /* enum charge_control_mode */ + + /* Below are the fields added in V2. */ + uint8_t cmd; /* enum ec_charge_control_cmd. */ + uint8_t flags; /* enum ec_charge_control_flag (v3+) */ + /* + * Lower and upper thresholds for battery sustainer. This struct isn't + * named to avoid tainting foreign projects' name spaces. + * + * If charge mode is explicitly set (e.g. DISCHARGE), battery sustainer + * will be disabled. To disable battery sustainer, set mode=NORMAL, + * lower=-1, upper=-1. + */ + struct { + int8_t lower; /* Display SoC in percentage. */ + int8_t upper; /* Display SoC in percentage. */ + } sustain_soc; +} __ec_align4; + +/* Added in v2 */ +struct ec_response_charge_control { + uint32_t mode; /* enum charge_control_mode */ + struct { /* Battery sustainer thresholds */ + int8_t lower; + int8_t upper; + } sustain_soc; + uint8_t flags; /* enum ec_charge_control_flag (v3+) */ + uint8_t reserved; } __ec_align4; /*****************************************************************************/