From patchwork Tue Sep 3 16:30:30 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: =?utf-8?q?=C5=81ukasz_Bartosik?= X-Patchwork-Id: 825595 Received: from mail-ej1-f45.google.com (mail-ej1-f45.google.com [209.85.218.45]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id EB42E18BB98 for ; Tue, 3 Sep 2024 16:30:43 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.218.45 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1725381045; cv=none; b=e2yu3NTWCxKR15fGZwg2QhUXT4mFFIPx0CGqiijIUFRfD+HYrrC4qxxgMWNTVpQ7ajpTka8uh6xNX97B5Wn6s0xLp3KEIkqCbGKiMQdi6UG3YFYdKdxr67JuqZhlgSmfUz50V7WSVkIcAnJq841gzz4oRfyMsgx+ydWI2A5ai10= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1725381045; c=relaxed/simple; bh=TsmOE9Ka/cnWkIMlbMKgGfPc39w+hTp4h9HPdq+aFvg=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=RQBJsToygmXz4sv+/de9xNO/BWQOCyA8Bxss/QNUmmA2J3NgVAXJUjUrEmAreecZ9ryVvKzM/MebjLRKpom7U6WeCgOiKtQC553KNdkF4adliNUyXCCejIFnaNGudki5ELErQ8ogMd3sMiFLVIVdl/xmubKOXdazxk4y2fNgB0c= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=chromium.org; spf=pass smtp.mailfrom=chromium.org; dkim=pass (1024-bit key) header.d=chromium.org header.i=@chromium.org header.b=G2W1eHW8; arc=none smtp.client-ip=209.85.218.45 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=chromium.org Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=chromium.org Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=chromium.org header.i=@chromium.org header.b="G2W1eHW8" Received: by mail-ej1-f45.google.com with SMTP id a640c23a62f3a-a83597ce5beso886882766b.1 for ; Tue, 03 Sep 2024 09:30:43 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=chromium.org; s=google; t=1725381042; x=1725985842; darn=vger.kernel.org; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=rtMD3IMlTRzDoSIZAH1mJmZO2t72h7tff8Sou3zt11w=; b=G2W1eHW8Fzh3vBgb3ZywWof6DiqsGGVvnmJdLIwdn+R91P5GvbxTzH0IBM4vP6UPAC YrEVFJZMukbcLUVwfVlZyPW5TRDP6EBR1nmZjOu/lrOZrZ8eYdbqY8ptE/yiSykvqwx2 YB8iEbC3cYwLhFEYj1Nb8DqGAwDS5QGiYp2NQ= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1725381042; x=1725985842; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=rtMD3IMlTRzDoSIZAH1mJmZO2t72h7tff8Sou3zt11w=; b=m+x95UOvbGkTCbrGA2dQzzmpWsMjnOSt/2f+btv4FUzQywc4chEfcJ3fdxyIxg/j5F U4r1PV/I9jQl+SY2brgL/ldlTy6f6tBKwpQmBASQU/tnb7Bl88rDhf0rw16v+zhjHF1i tcmTxGD2uqhKXQZFzwwmzWVg/HyckG99psUlyHYl650VIAIB1yOVvfFOFgyUerV9imkx s+0c2XzhUUfBdayFOdSusHSK9D6rdRmsXwVYylDBM6q7ofLttVfnry72Wd4MvV3z3SRI vf6kxYo0E1+orzWI/rcsTQzrGJtGp7XMlGNHIrszh+OgC6NHtvfXyyrxLa38VmGdSRAE Sdrg== X-Forwarded-Encrypted: i=1; AJvYcCWM1fG8qExwAxR96V1f3zYKBBqKRXWg8MKYDhW1klXTYwqv9lT6sM+FS88H/V50IRa6/BW+rA5dtfI=@vger.kernel.org X-Gm-Message-State: AOJu0YyoclTFvOEst8fZSOefVYMSNi/1DmNoPnaBDAkuuaGeUb60y1Aa hursjYbT0Jc/Jr2StR+NGR3igRSe21GPBbkoZCicaCvEid1ewfX7uA8z22Q2 X-Google-Smtp-Source: AGHT+IEpNCPxVCdSEzTX2L1luDog7Pdct+Z7ieU4407jTg3v6KUKlvKALbxBkKJpVDEajJiHx9Lcww== X-Received: by 2002:a17:907:1ca4:b0:a86:84c3:a87 with SMTP id a640c23a62f3a-a89827a9635mr1883312666b.24.1725381041877; Tue, 03 Sep 2024 09:30:41 -0700 (PDT) Received: from ukaszb-ng.c.googlers.com.com (140.20.91.34.bc.googleusercontent.com. [34.91.20.140]) by smtp.gmail.com with ESMTPSA id a640c23a62f3a-a8989196bc4sm700685866b.125.2024.09.03.09.30.41 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 03 Sep 2024 09:30:41 -0700 (PDT) From: =?utf-8?q?=C5=81ukasz_Bartosik?= To: Heikki Krogerus , Greg Kroah-Hartman , Lee Jones , Benson Leung , Guenter Roeck Cc: Abhishek Pandit-Subedi , Pavan Holla , Tzung-Bi Shih , linux-usb@vger.kernel.org, chrome-platform@lists.linux.dev Subject: [PATCH v5 5/8] usb: typec: cros_ec_ucsi: Add trace events Date: Tue, 3 Sep 2024 16:30:30 +0000 Message-ID: <20240903163033.3170815-6-ukaszb@chromium.org> X-Mailer: git-send-email 2.46.0.469.g59c65b2a67-goog In-Reply-To: <20240903163033.3170815-1-ukaszb@chromium.org> References: <20240903163033.3170815-1-ukaszb@chromium.org> Precedence: bulk X-Mailing-List: linux-usb@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Add trace events to ChromeOS UCSI driver to enable debugging. Signed-off-by: Łukasz Bartosik --- MAINTAINERS | 1 + drivers/usb/typec/ucsi/cros_ec_ucsi.c | 8 ++ drivers/usb/typec/ucsi/cros_ec_ucsi_trace.h | 92 +++++++++++++++++++++ 3 files changed, 101 insertions(+) create mode 100644 drivers/usb/typec/ucsi/cros_ec_ucsi_trace.h diff --git a/MAINTAINERS b/MAINTAINERS index 8c030ea0b503..d084f32208f0 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -5306,6 +5306,7 @@ M: Łukasz Bartosik L: chrome-platform@lists.linux.dev S: Maintained F: drivers/usb/typec/ucsi/cros_ec_ucsi.c +F: drivers/usb/typec/ucsi/cros_ec_ucsi_trace.h CHRONTEL CH7322 CEC DRIVER M: Joe Tessler diff --git a/drivers/usb/typec/ucsi/cros_ec_ucsi.c b/drivers/usb/typec/ucsi/cros_ec_ucsi.c index 4a3369c649bf..6e020b7ed352 100644 --- a/drivers/usb/typec/ucsi/cros_ec_ucsi.c +++ b/drivers/usb/typec/ucsi/cros_ec_ucsi.c @@ -16,7 +16,9 @@ #include #include +#define CREATE_TRACE_POINTS #include "ucsi.h" +#include "cros_ec_ucsi_trace.h" /* * Maximum size in bytes of a UCSI message between AP and EC @@ -62,6 +64,8 @@ static int cros_ucsi_read(struct ucsi *ucsi, unsigned int offset, void *val, dev_warn(udata->dev, "Failed to send EC message UCSI_PPM_GET: error=%d", ret); return ret; } + + trace_cros_ec_opm_to_ppm_rd(offset, val, val_len); return 0; } @@ -101,6 +105,8 @@ static int cros_ucsi_async_control(struct ucsi *ucsi, u64 cmd) dev_warn(udata->dev, "Failed to send EC message UCSI_PPM_SET: error=%d", ret); return ret; } + + trace_cros_ec_opm_to_ppm_wr(req->offset, &cmd, sizeof(cmd)); return 0; } @@ -143,6 +149,8 @@ static void cros_ucsi_work(struct work_struct *work) struct cros_ucsi_data *udata = container_of(work, struct cros_ucsi_data, work); u32 cci; + trace_cros_ec_ppm_to_opm(0); + if (cros_ucsi_read(udata->ucsi, UCSI_CCI, &cci, sizeof(cci))) return; diff --git a/drivers/usb/typec/ucsi/cros_ec_ucsi_trace.h b/drivers/usb/typec/ucsi/cros_ec_ucsi_trace.h new file mode 100644 index 000000000000..b765ef5c8236 --- /dev/null +++ b/drivers/usb/typec/ucsi/cros_ec_ucsi_trace.h @@ -0,0 +1,92 @@ +/* SPDX-License-Identifier: GPL-2.0 */ + +#undef TRACE_SYSTEM +#define TRACE_SYSTEM cros_ec_ucsi + +#if !defined(__CROS_EC_UCSI_TRACE_H) || defined(TRACE_HEADER_MULTI_READ) +#define __CROS_EC_UCSI_TRACE_H + +#include + +#define decode_cmd(cmd) \ + __print_symbolic(cmd, \ + { 0, "Unknown command" }, \ + { UCSI_PPM_RESET, "PPM_RESET" }, \ + { UCSI_CONNECTOR_RESET, "CONNECTOR_RESET," }, \ + { UCSI_ACK_CC_CI, "ACK_CC_CI" }, \ + { UCSI_SET_NOTIFICATION_ENABLE, "SET_NOTIFICATION_ENABLE" }, \ + { UCSI_GET_CAPABILITY, "GET_CAPABILITY" }, \ + { UCSI_GET_CONNECTOR_CAPABILITY, "GET_CONNECTOR_CAPABILITY" }, \ + { UCSI_SET_UOM, "SET_UOM" }, \ + { UCSI_SET_UOR, "SET_UOR" }, \ + { UCSI_SET_PDM, "SET_PDM" }, \ + { UCSI_SET_PDR, "SET_PDR" }, \ + { UCSI_GET_ALTERNATE_MODES, "GET_ALTERNATE_MODES" }, \ + { UCSI_GET_CAM_SUPPORTED, "GET_CAM_SUPPORTED" }, \ + { UCSI_GET_CURRENT_CAM, "GET_CURRENT_CAM" }, \ + { UCSI_SET_NEW_CAM, "SET_NEW_CAM" }, \ + { UCSI_GET_PDOS, "GET_PDOS" }, \ + { UCSI_GET_CABLE_PROPERTY, "GET_CABLE_PROPERTY" }, \ + { UCSI_GET_CONNECTOR_STATUS, "GET_CONNECTOR_STATUS" }, \ + { UCSI_GET_ERROR_STATUS, "GET_ERROR_STATUS" }) + +#define decode_offset(offset) \ + __print_symbolic(offset, \ + { UCSI_VERSION, "VER" }, \ + { UCSI_CCI, "CCI" }, \ + { UCSI_CONTROL, "CTRL" }, \ + { UCSI_MESSAGE_IN, "MSG_IN" }, \ + { UCSI_MESSAGE_OUT, "MSG_OUT" }, \ + { UCSIv2_MESSAGE_OUT, "MSG_OUTv2" }) + +DECLARE_EVENT_CLASS(cros_ec_opm_to_ppm, + TP_PROTO(u16 offset, const void *value, size_t length), + TP_ARGS(offset, value, length), + TP_STRUCT__entry( + __field(u8, cmd) + __field(u16, offset) + __field(size_t, length) + __dynamic_array(char, msg, length) + ), + TP_fast_assign( + __entry->cmd = *((u64 *) value + 3); + __entry->offset = offset; + __entry->length = length; + memcpy(__get_dynamic_array(msg), value, length); + ), + TP_printk("(%s) %s: %s", + decode_offset(__entry->offset), + __entry->offset == UCSI_CONTROL ? + decode_cmd(__entry->cmd) : "", + __print_hex(__get_dynamic_array(msg), __entry->length)) +); + +DEFINE_EVENT(cros_ec_opm_to_ppm, cros_ec_opm_to_ppm_rd, + TP_PROTO(u16 offset, const void *value, size_t length), + TP_ARGS(offset, value, length) +); + +DEFINE_EVENT(cros_ec_opm_to_ppm, cros_ec_opm_to_ppm_wr, + TP_PROTO(u16 offset, const void *value, size_t length), + TP_ARGS(offset, value, length) +); + +TRACE_EVENT(cros_ec_ppm_to_opm, + TP_PROTO(int x), + TP_ARGS(x), + TP_STRUCT__entry(__array(char, x, 0)), + TP_fast_assign((void)x), + TP_printk("notification%s", "") +); + +#endif /* __CROS_EC_UCSI_TRACE_H */ + +/* This part must be outside protection */ + +#undef TRACE_INCLUDE_PATH +#define TRACE_INCLUDE_PATH . + +#undef TRACE_INCLUDE_FILE +#define TRACE_INCLUDE_FILE cros_ec_ucsi_trace + +#include