From patchwork Mon Aug 9 13:15:55 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: =?utf-8?q?C=C3=A9dric_Le_Goater?= X-Patchwork-Id: 12426513 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-16.8 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 4BC1DC4338F for ; Mon, 9 Aug 2021 13:32:13 +0000 (UTC) Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 7D21A60EBB for ; Mon, 9 Aug 2021 13:32:12 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.4.1 mail.kernel.org 7D21A60EBB Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=kaod.org Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=nongnu.org Received: from localhost ([::1]:48962 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1mD5Nz-00021n-6u for qemu-devel@archiver.kernel.org; Mon, 09 Aug 2021 09:32:11 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:48680) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1mD58u-00055v-E8; Mon, 09 Aug 2021 09:16:36 -0400 Received: from mx0b-001b2d01.pphosted.com ([148.163.158.5]:6386) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1mD58r-0005DV-UJ; Mon, 09 Aug 2021 09:16:35 -0400 Received: from pps.filterd (m0098417.ppops.net [127.0.0.1]) by mx0a-001b2d01.pphosted.com (8.16.0.43/8.16.0.43) with SMTP id 179DGSQa075910; Mon, 9 Aug 2021 09:16:29 -0400 Received: from ppma04ams.nl.ibm.com (63.31.33a9.ip4.static.sl-reverse.com [169.51.49.99]) by mx0a-001b2d01.pphosted.com with ESMTP id 3aaa1qwg8f-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Mon, 09 Aug 2021 09:16:28 -0400 Received: from pps.filterd (ppma04ams.nl.ibm.com [127.0.0.1]) by ppma04ams.nl.ibm.com (8.16.1.2/8.16.1.2) with SMTP id 179CwDir024447; Mon, 9 Aug 2021 13:16:08 GMT Received: from b06cxnps3074.portsmouth.uk.ibm.com (d06relay09.portsmouth.uk.ibm.com [9.149.109.194]) by ppma04ams.nl.ibm.com with ESMTP id 3a9ht8v0d3-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Mon, 09 Aug 2021 13:16:08 +0000 Received: from d06av21.portsmouth.uk.ibm.com (d06av21.portsmouth.uk.ibm.com [9.149.105.232]) by b06cxnps3074.portsmouth.uk.ibm.com (8.14.9/8.14.9/NCO v10.0) with ESMTP id 179DG5Q654460884 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Mon, 9 Aug 2021 13:16:05 GMT Received: from d06av21.portsmouth.uk.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id BFD4352065; Mon, 9 Aug 2021 13:16:05 +0000 (GMT) Received: from smtp.tlslab.ibm.com (unknown [9.101.4.1]) by d06av21.portsmouth.uk.ibm.com (Postfix) with SMTP id 6346D52051; Mon, 9 Aug 2021 13:16:05 +0000 (GMT) Received: from yukon.ibmuc.com (unknown [9.171.54.114]) by smtp.tlslab.ibm.com (Postfix) with ESMTP id 8FFEE22016C; Mon, 9 Aug 2021 15:16:04 +0200 (CEST) From: =?utf-8?q?C=C3=A9dric_Le_Goater?= To: Peter Maydell Subject: [PATCH 09/10] hw/misc: Add Infineon DPS310 sensor model Date: Mon, 9 Aug 2021 15:15:55 +0200 Message-Id: <20210809131556.686260-10-clg@kaod.org> X-Mailer: git-send-email 2.31.1 In-Reply-To: <20210809131556.686260-1-clg@kaod.org> References: <20210809131556.686260-1-clg@kaod.org> X-TM-AS-GCONF: 00 X-Proofpoint-GUID: u1twyXZFzSMBslm38guKv311mkm13xC2 X-Proofpoint-ORIG-GUID: u1twyXZFzSMBslm38guKv311mkm13xC2 X-Proofpoint-UnRewURL: 0 URL was un-rewritten MIME-Version: 1.0 X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10434:6.0.391, 18.0.790 definitions=2021-08-09_04:2021-08-06, 2021-08-09 signatures=0 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 lowpriorityscore=0 mlxlogscore=999 mlxscore=0 clxscore=1034 spamscore=0 priorityscore=1501 suspectscore=0 malwarescore=0 bulkscore=0 adultscore=0 impostorscore=0 phishscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2107140000 definitions=main-2108090099 Received-SPF: softfail client-ip=148.163.158.5; envelope-from=clg@kaod.org; helo=mx0b-001b2d01.pphosted.com X-Spam_score_int: -11 X-Spam_score: -1.2 X-Spam_bar: - X-Spam_report: (-1.2 / 5.0 requ) BAYES_00=-1.9, RCVD_IN_MSPIKE_H4=0.001, RCVD_IN_MSPIKE_WL=0.001, SPF_HELO_NONE=0.001, SPF_SOFTFAIL=0.665 autolearn=no autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Andrew Jeffery , =?utf-8?q?C=C3=A9dric_Le_Goater?= , qemu-arm@nongnu.org, Joel Stanley , qemu-devel@nongnu.org Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" From: Joel Stanley This contains some hardcoded register values that were obtained from the hardware after reading the temperature. It does enough to test the Linux kernel driver. The FIFO mode, IRQs and operation modes other than the default as used by Linux are not modelled. Signed-off-by: Joel Stanley [ clg: Fix sequential reading ] Message-Id: <20210616073358.750472-2-joel@jms.id.au> Signed-off-by: Cédric Le Goater Message-Id: <20210629142336.750058-4-clg@kaod.org> Signed-off-by: Cédric Le Goater --- hw/misc/dps310.c | 227 ++++++++++++++++++++++++++++++++++++++++++++ hw/arm/Kconfig | 1 + hw/misc/Kconfig | 4 + hw/misc/meson.build | 1 + 4 files changed, 233 insertions(+) create mode 100644 hw/misc/dps310.c diff --git a/hw/misc/dps310.c b/hw/misc/dps310.c new file mode 100644 index 000000000000..893521ab8516 --- /dev/null +++ b/hw/misc/dps310.c @@ -0,0 +1,227 @@ +// SPDX-License-Identifier: GPL-2.0-or-later +/* + * Copyright 2017-2021 Joel Stanley , IBM Corporation + * + * Infineon DPS310 temperature and humidity sensor + * + * https://www.infineon.com/cms/en/product/sensor/pressure-sensors/pressure-sensors-for-iot/dps310/ + */ + +#include "qemu/osdep.h" +#include "qemu/log.h" +#include "hw/hw.h" +#include "hw/i2c/i2c.h" +#include "qapi/error.h" +#include "qapi/visitor.h" +#include "migration/vmstate.h" + +#define NUM_REGISTERS 0x33 + +typedef struct DPS310State { + /*< private >*/ + I2CSlave i2c; + + /*< public >*/ + uint8_t regs[NUM_REGISTERS]; + + uint8_t len; + uint8_t pointer; + +} DPS310State; + +#define TYPE_DPS310 "dps310" +#define DPS310(obj) OBJECT_CHECK(DPS310State, (obj), TYPE_DPS310) + +#define DPS310_PRS_B2 0x00 +#define DPS310_PRS_B1 0x01 +#define DPS310_PRS_B0 0x02 +#define DPS310_TMP_B2 0x03 +#define DPS310_TMP_B1 0x04 +#define DPS310_TMP_B0 0x05 +#define DPS310_PRS_CFG 0x06 +#define DPS310_TMP_CFG 0x07 +#define DPS310_TMP_RATE_BITS (0x70) +#define DPS310_MEAS_CFG 0x08 +#define DPS310_MEAS_CTRL_BITS (0x07) +#define DPS310_PRESSURE_EN BIT(0) +#define DPS310_TEMP_EN BIT(1) +#define DPS310_BACKGROUND BIT(2) +#define DPS310_PRS_RDY BIT(4) +#define DPS310_TMP_RDY BIT(5) +#define DPS310_SENSOR_RDY BIT(6) +#define DPS310_COEF_RDY BIT(7) +#define DPS310_CFG_REG 0x09 +#define DPS310_RESET 0x0c +#define DPS310_RESET_MAGIC (BIT(0) | BIT(3)) +#define DPS310_COEF_BASE 0x10 +#define DPS310_COEF_LAST 0x21 +#define DPS310_COEF_SRC 0x28 + +static void dps310_reset(DeviceState *dev) +{ + DPS310State *s = DPS310(dev); + + static const uint8_t regs_reset_state[] = { + 0xfe, 0x2f, 0xee, 0x02, 0x69, 0xa6, 0x00, 0x80, 0xc7, 0x00, 0x00, 0x00, + 0x00, 0x10, 0x00, 0x00, 0x0e, 0x1e, 0xdd, 0x13, 0xca, 0x5f, 0x21, 0x52, + 0xf9, 0xc6, 0x04, 0xd1, 0xdb, 0x47, 0x00, 0x5b, 0xfb, 0x3a, 0x00, 0x00, + 0x20, 0x49, 0x4e, 0xa5, 0x90, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x60, 0x15, 0x02 + }; + + QEMU_BUILD_BUG_ON(sizeof(regs_reset_state) != sizeof(s->regs)); + + memcpy(s->regs, regs_reset_state, sizeof(s->regs)); + s->pointer = 0; + + /* TODO: assert these after some timeout ? */ + s->regs[DPS310_MEAS_CFG] = DPS310_COEF_RDY | DPS310_SENSOR_RDY + | DPS310_TMP_RDY | DPS310_PRS_RDY; +} + +static uint8_t dps310_read(DPS310State *s, uint8_t reg) +{ + if (reg >= sizeof(s->regs)) { + qemu_log_mask(LOG_GUEST_ERROR, "%s: register 0x%02x out of bounds\n", + __func__, s->pointer); + return 0xFF; + } + + switch (reg) { + case DPS310_PRS_B2: + case DPS310_PRS_B1: + case DPS310_PRS_B0: + case DPS310_TMP_B2: + case DPS310_TMP_B1: + case DPS310_TMP_B0: + case DPS310_PRS_CFG: + case DPS310_TMP_CFG: + case DPS310_MEAS_CFG: + case DPS310_CFG_REG: + case DPS310_COEF_BASE...DPS310_COEF_LAST: + case DPS310_COEF_SRC: + case 0x32: /* Undocumented register to indicate workaround not required */ + return s->regs[reg]; + default: + qemu_log_mask(LOG_UNIMP, "%s: register 0x%02x unimplemented\n", + __func__, reg); + return 0xFF; + } +} + +static void dps310_write(DPS310State *s, uint8_t reg, uint8_t data) +{ + if (reg >= sizeof(s->regs)) { + qemu_log_mask(LOG_GUEST_ERROR, "%s: register %d out of bounds\n", + __func__, s->pointer); + return; + } + + switch (reg) { + case DPS310_RESET: + if (data == DPS310_RESET_MAGIC) { + device_cold_reset(DEVICE(s)); + } + break; + case DPS310_PRS_CFG: + case DPS310_TMP_CFG: + case DPS310_MEAS_CFG: + case DPS310_CFG_REG: + s->regs[reg] = data; + break; + default: + qemu_log_mask(LOG_UNIMP, "%s: register 0x%02x unimplemented\n", + __func__, reg); + return; + } +} + +static uint8_t dps310_rx(I2CSlave *i2c) +{ + DPS310State *s = DPS310(i2c); + + if (s->len == 1) { + return dps310_read(s, s->pointer++); + } else { + return 0xFF; + } +} + +static int dps310_tx(I2CSlave *i2c, uint8_t data) +{ + DPS310State *s = DPS310(i2c); + + if (s->len == 0) { + /* + * first byte is the register pointer for a read or write + * operation + */ + s->pointer = data; + s->len++; + } else if (s->len == 1) { + dps310_write(s, s->pointer++, data); + } + + return 0; +} + +static int dps310_event(I2CSlave *i2c, enum i2c_event event) +{ + DPS310State *s = DPS310(i2c); + + switch (event) { + case I2C_START_SEND: + s->pointer = 0xFF; + s->len = 0; + break; + case I2C_START_RECV: + if (s->len != 1) { + qemu_log_mask(LOG_GUEST_ERROR, "%s: invalid recv sequence\n", + __func__); + } + break; + default: + break; + } + + return 0; +} + +static const VMStateDescription vmstate_dps310 = { + .name = "DPS310", + .version_id = 0, + .minimum_version_id = 0, + .fields = (VMStateField[]) { + VMSTATE_UINT8(len, DPS310State), + VMSTATE_UINT8_ARRAY(regs, DPS310State, NUM_REGISTERS), + VMSTATE_UINT8(pointer, DPS310State), + VMSTATE_I2C_SLAVE(i2c, DPS310State), + VMSTATE_END_OF_LIST() + } +}; + +static void dps310_class_init(ObjectClass *klass, void *data) +{ + DeviceClass *dc = DEVICE_CLASS(klass); + I2CSlaveClass *k = I2C_SLAVE_CLASS(klass); + + k->event = dps310_event; + k->recv = dps310_rx; + k->send = dps310_tx; + dc->reset = dps310_reset; + dc->vmsd = &vmstate_dps310; +} + +static const TypeInfo dps310_info = { + .name = TYPE_DPS310, + .parent = TYPE_I2C_SLAVE, + .instance_size = sizeof(DPS310State), + .class_init = dps310_class_init, +}; + +static void dps310_register_types(void) +{ + type_register_static(&dps310_info); +} + +type_init(dps310_register_types) diff --git a/hw/arm/Kconfig b/hw/arm/Kconfig index 4ba0aca0676b..2c4e2df470d2 100644 --- a/hw/arm/Kconfig +++ b/hw/arm/Kconfig @@ -429,6 +429,7 @@ config ASPEED_SOC select DS1338 select FTGMAC100 select I2C + select DPS310 select PCA9552 select SERIAL select SMBUS_EEPROM diff --git a/hw/misc/Kconfig b/hw/misc/Kconfig index 507058d8bffb..1c913dc3b837 100644 --- a/hw/misc/Kconfig +++ b/hw/misc/Kconfig @@ -34,6 +34,10 @@ config EDU default y if TEST_DEVICES depends on PCI && MSI_NONBROKEN +config DPS310 + bool + depends on I2C + config PCA9552 bool depends on I2C diff --git a/hw/misc/meson.build b/hw/misc/meson.build index a53b849a5a0b..93b90ecd39e4 100644 --- a/hw/misc/meson.build +++ b/hw/misc/meson.build @@ -1,4 +1,5 @@ softmmu_ss.add(when: 'CONFIG_APPLESMC', if_true: files('applesmc.c')) +softmmu_ss.add(when: 'CONFIG_DPS310', if_true: files('dps310.c')) softmmu_ss.add(when: 'CONFIG_EDU', if_true: files('edu.c')) softmmu_ss.add(when: 'CONFIG_FW_CFG_DMA', if_true: files('vmcoreinfo.c')) softmmu_ss.add(when: 'CONFIG_ISA_DEBUG', if_true: files('debugexit.c'))