From patchwork Tue Jan 17 19:00:15 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: =?utf-8?q?M=C3=A5rten_Lindahl?= X-Patchwork-Id: 13105022 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 98E43C54E76 for ; Tue, 17 Jan 2023 20:09:32 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233110AbjAQUJW (ORCPT ); Tue, 17 Jan 2023 15:09:22 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:44606 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S234067AbjAQUHO (ORCPT ); Tue, 17 Jan 2023 15:07:14 -0500 Received: from smtp2.axis.com (smtp2.axis.com [195.60.68.18]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 5550C46D7F for ; Tue, 17 Jan 2023 11:00:23 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=axis.com; q=dns/txt; s=axis-central1; t=1673982026; x=1705518026; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=dHH9T+lTlvszF/h/7EbtIRUggJMtqeajLkeifWusHXo=; b=XumiOwuPt6HxHCD1kIt4nt0OrZYeS0t7AqWuRlz19tmSdTUDWte6AxRg miOAktzhLJrOwG5i9Em+nCfcGR6hw4sneSHmE34JtTyDeF/tvGzwU/1CZ Rd6/mGQV8qAgUcLa5ceuxwpq7rOclS2DBbNY7eo5qm2lQwK1bN744vRRz cDBXP85c8JKnUqpcv4AJRT4cLq0oYEzgsnbdQ1flLZQ9BXTia7nIhAHQa 1Cz+ieMFMkEc+c+wGSryXhkSB26V6LLeuUVWHP9SxJTaySQG9Akra6pAZ OnVugmWyyGfUXbhVdC3BY8J1P5o1SKDQS/i2RnHEu9zYqnZ5x/EX9yzdZ Q==; From: =?utf-8?q?M=C3=A5rten_Lindahl?= To: Jonathan Cameron CC: Lars-Peter Clausen , Andy Shevchenko , , , =?utf-8?q?M=C3=A5rten_Linda?= =?utf-8?q?hl?= Subject: [PATCH v5 1/3] iio: light: vcnl4000: Prepare for more generic setup Date: Tue, 17 Jan 2023 20:00:15 +0100 Message-ID: <20230117190017.3789181-2-marten.lindahl@axis.com> X-Mailer: git-send-email 2.30.2 In-Reply-To: <20230117190017.3789181-1-marten.lindahl@axis.com> References: <20230117190017.3789181-1-marten.lindahl@axis.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-iio@vger.kernel.org In order to allow the chip_spec array reference the function pointers for interrupts, the code for these functions need to be moved above the chip_spec array. This is a prestep to support a more generic setup of interrupts. Signed-off-by: Mårten Lindahl --- drivers/iio/light/vcnl4000.c | 256 +++++++++++++++++------------------ 1 file changed, 128 insertions(+), 128 deletions(-) diff --git a/drivers/iio/light/vcnl4000.c b/drivers/iio/light/vcnl4000.c index cc1a2062e76d..11b54b57e592 100644 --- a/drivers/iio/light/vcnl4000.c +++ b/drivers/iio/light/vcnl4000.c @@ -887,6 +887,134 @@ static ssize_t vcnl4000_read_near_level(struct iio_dev *indio_dev, return sprintf(buf, "%u\n", data->near_level); } +static irqreturn_t vcnl4010_irq_thread(int irq, void *p) +{ + struct iio_dev *indio_dev = p; + struct vcnl4000_data *data = iio_priv(indio_dev); + unsigned long isr; + int ret; + + ret = i2c_smbus_read_byte_data(data->client, VCNL4010_ISR); + if (ret < 0) + goto end; + + isr = ret; + + if (isr & VCNL4010_INT_THR) { + if (test_bit(VCNL4010_INT_THR_LOW, &isr)) { + iio_push_event(indio_dev, + IIO_UNMOD_EVENT_CODE( + IIO_PROXIMITY, + 1, + IIO_EV_TYPE_THRESH, + IIO_EV_DIR_FALLING), + iio_get_time_ns(indio_dev)); + } + + if (test_bit(VCNL4010_INT_THR_HIGH, &isr)) { + iio_push_event(indio_dev, + IIO_UNMOD_EVENT_CODE( + IIO_PROXIMITY, + 1, + IIO_EV_TYPE_THRESH, + IIO_EV_DIR_RISING), + iio_get_time_ns(indio_dev)); + } + + i2c_smbus_write_byte_data(data->client, VCNL4010_ISR, + isr & VCNL4010_INT_THR); + } + + if (isr & VCNL4010_INT_DRDY && iio_buffer_enabled(indio_dev)) + iio_trigger_poll_chained(indio_dev->trig); + +end: + return IRQ_HANDLED; +} + +static irqreturn_t vcnl4010_trigger_handler(int irq, void *p) +{ + struct iio_poll_func *pf = p; + struct iio_dev *indio_dev = pf->indio_dev; + struct vcnl4000_data *data = iio_priv(indio_dev); + const unsigned long *active_scan_mask = indio_dev->active_scan_mask; + u16 buffer[8] __aligned(8) = {0}; /* 1x16-bit + naturally aligned ts */ + bool data_read = false; + unsigned long isr; + int val = 0; + int ret; + + ret = i2c_smbus_read_byte_data(data->client, VCNL4010_ISR); + if (ret < 0) + goto end; + + isr = ret; + + if (test_bit(0, active_scan_mask)) { + if (test_bit(VCNL4010_INT_PROXIMITY, &isr)) { + ret = vcnl4000_read_data(data, + VCNL4000_PS_RESULT_HI, + &val); + if (ret < 0) + goto end; + + buffer[0] = val; + data_read = true; + } + } + + ret = i2c_smbus_write_byte_data(data->client, VCNL4010_ISR, + isr & VCNL4010_INT_DRDY); + if (ret < 0) + goto end; + + if (!data_read) + goto end; + + iio_push_to_buffers_with_timestamp(indio_dev, buffer, + iio_get_time_ns(indio_dev)); + +end: + iio_trigger_notify_done(indio_dev->trig); + return IRQ_HANDLED; +} + +static int vcnl4010_buffer_postenable(struct iio_dev *indio_dev) +{ + struct vcnl4000_data *data = iio_priv(indio_dev); + int ret; + int cmd; + + /* Do not enable the buffer if we are already capturing events. */ + if (vcnl4010_is_in_periodic_mode(data)) + return -EBUSY; + + ret = i2c_smbus_write_byte_data(data->client, VCNL4010_INT_CTRL, + VCNL4010_INT_PROX_EN); + if (ret < 0) + return ret; + + cmd = VCNL4000_SELF_TIMED_EN | VCNL4000_PROX_EN; + return i2c_smbus_write_byte_data(data->client, VCNL4000_COMMAND, cmd); +} + +static int vcnl4010_buffer_predisable(struct iio_dev *indio_dev) +{ + struct vcnl4000_data *data = iio_priv(indio_dev); + int ret; + + ret = i2c_smbus_write_byte_data(data->client, VCNL4010_INT_CTRL, 0); + if (ret < 0) + return ret; + + return i2c_smbus_write_byte_data(data->client, VCNL4000_COMMAND, 0); +} + +static const struct iio_buffer_setup_ops vcnl4010_buffer_ops = { + .postenable = &vcnl4010_buffer_postenable, + .predisable = &vcnl4010_buffer_predisable, +}; + static const struct iio_chan_spec_ext_info vcnl4000_ext_info[] = { { .name = "nearlevel", @@ -1030,134 +1158,6 @@ static const struct vcnl4000_chip_spec vcnl4000_chip_spec_cfg[] = { }, }; -static irqreturn_t vcnl4010_irq_thread(int irq, void *p) -{ - struct iio_dev *indio_dev = p; - struct vcnl4000_data *data = iio_priv(indio_dev); - unsigned long isr; - int ret; - - ret = i2c_smbus_read_byte_data(data->client, VCNL4010_ISR); - if (ret < 0) - goto end; - - isr = ret; - - if (isr & VCNL4010_INT_THR) { - if (test_bit(VCNL4010_INT_THR_LOW, &isr)) { - iio_push_event(indio_dev, - IIO_UNMOD_EVENT_CODE( - IIO_PROXIMITY, - 1, - IIO_EV_TYPE_THRESH, - IIO_EV_DIR_FALLING), - iio_get_time_ns(indio_dev)); - } - - if (test_bit(VCNL4010_INT_THR_HIGH, &isr)) { - iio_push_event(indio_dev, - IIO_UNMOD_EVENT_CODE( - IIO_PROXIMITY, - 1, - IIO_EV_TYPE_THRESH, - IIO_EV_DIR_RISING), - iio_get_time_ns(indio_dev)); - } - - i2c_smbus_write_byte_data(data->client, VCNL4010_ISR, - isr & VCNL4010_INT_THR); - } - - if (isr & VCNL4010_INT_DRDY && iio_buffer_enabled(indio_dev)) - iio_trigger_poll_chained(indio_dev->trig); - -end: - return IRQ_HANDLED; -} - -static irqreturn_t vcnl4010_trigger_handler(int irq, void *p) -{ - struct iio_poll_func *pf = p; - struct iio_dev *indio_dev = pf->indio_dev; - struct vcnl4000_data *data = iio_priv(indio_dev); - const unsigned long *active_scan_mask = indio_dev->active_scan_mask; - u16 buffer[8] __aligned(8) = {0}; /* 1x16-bit + naturally aligned ts */ - bool data_read = false; - unsigned long isr; - int val = 0; - int ret; - - ret = i2c_smbus_read_byte_data(data->client, VCNL4010_ISR); - if (ret < 0) - goto end; - - isr = ret; - - if (test_bit(0, active_scan_mask)) { - if (test_bit(VCNL4010_INT_PROXIMITY, &isr)) { - ret = vcnl4000_read_data(data, - VCNL4000_PS_RESULT_HI, - &val); - if (ret < 0) - goto end; - - buffer[0] = val; - data_read = true; - } - } - - ret = i2c_smbus_write_byte_data(data->client, VCNL4010_ISR, - isr & VCNL4010_INT_DRDY); - if (ret < 0) - goto end; - - if (!data_read) - goto end; - - iio_push_to_buffers_with_timestamp(indio_dev, buffer, - iio_get_time_ns(indio_dev)); - -end: - iio_trigger_notify_done(indio_dev->trig); - return IRQ_HANDLED; -} - -static int vcnl4010_buffer_postenable(struct iio_dev *indio_dev) -{ - struct vcnl4000_data *data = iio_priv(indio_dev); - int ret; - int cmd; - - /* Do not enable the buffer if we are already capturing events. */ - if (vcnl4010_is_in_periodic_mode(data)) - return -EBUSY; - - ret = i2c_smbus_write_byte_data(data->client, VCNL4010_INT_CTRL, - VCNL4010_INT_PROX_EN); - if (ret < 0) - return ret; - - cmd = VCNL4000_SELF_TIMED_EN | VCNL4000_PROX_EN; - return i2c_smbus_write_byte_data(data->client, VCNL4000_COMMAND, cmd); -} - -static int vcnl4010_buffer_predisable(struct iio_dev *indio_dev) -{ - struct vcnl4000_data *data = iio_priv(indio_dev); - int ret; - - ret = i2c_smbus_write_byte_data(data->client, VCNL4010_INT_CTRL, 0); - if (ret < 0) - return ret; - - return i2c_smbus_write_byte_data(data->client, VCNL4000_COMMAND, 0); -} - -static const struct iio_buffer_setup_ops vcnl4010_buffer_ops = { - .postenable = &vcnl4010_buffer_postenable, - .predisable = &vcnl4010_buffer_predisable, -}; - static const struct iio_trigger_ops vcnl4010_trigger_ops = { .validate_device = iio_trigger_validate_own_device, }; From patchwork Tue Jan 17 19:00:16 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: =?utf-8?q?M=C3=A5rten_Lindahl?= X-Patchwork-Id: 13105025 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id D5DEDC677F1 for ; Tue, 17 Jan 2023 20:11:08 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232113AbjAQULA (ORCPT ); Tue, 17 Jan 2023 15:11:00 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:44600 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S234118AbjAQUHO (ORCPT ); Tue, 17 Jan 2023 15:07:14 -0500 Received: from smtp1.axis.com (smtp1.axis.com [195.60.68.17]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 55E1149946 for ; Tue, 17 Jan 2023 11:00:24 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=axis.com; q=dns/txt; s=axis-central1; t=1673982025; x=1705518025; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=2cE/D7/AWHle2fL6cEQmyRZO5FHW0lV6AazzdzK/LRU=; b=QpjfCYoaCnnkKhDpcA5GXFJ5Z9qX/WmmR0VjenzTyx8nlQA2+DLc5WS1 5TWI5AFYw720NUubFuzuo8ikfRTW9ezplfkEOuDYsU+i6wvAn3Kv4g0Cj 9yu+9HOHMdl6jOujRtsgFMvtnaj/FmLLWsjqiFWMCtSqqCX/6gK9/5tb/ kPjESH38t3ltu+rpQ4CdnvsRxq4YDSEyt8S77WfPTwEyie/XGKpxQInDE o5MDd1skkS51isgFSL3gldMDGpSidUt+b+ADwdBpctmVNQyahRIxNczQ5 AlW0c/C+Kq8DWqIoKmuJJZOof/5FxLueHoGUXJBJu7xunn5GM+pglG4L2 g==; From: =?utf-8?q?M=C3=A5rten_Lindahl?= To: Jonathan Cameron CC: Lars-Peter Clausen , Andy Shevchenko , , , =?utf-8?q?M=C3=A5rten_Linda?= =?utf-8?q?hl?= Subject: [PATCH v5 2/3] iio: light: vcnl4000: Make irq handling more generic Date: Tue, 17 Jan 2023 20:00:16 +0100 Message-ID: <20230117190017.3789181-3-marten.lindahl@axis.com> X-Mailer: git-send-email 2.30.2 In-Reply-To: <20230117190017.3789181-1-marten.lindahl@axis.com> References: <20230117190017.3789181-1-marten.lindahl@axis.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-iio@vger.kernel.org This driver supports 4 chips, by which only one (vcnl4010) handles interrupts and has support for triggered buffer. The setup of these functions is hardcoded for vcnl4010 inside the generic vcnl4000_probe, and thus ignores the chip specific configuration structure where all other chip specific functions are specified. This complicates adding interrupt handler and triggered buffer support to chips which may have support for it. Add members for irq threads and iio_buffer_setup_ops to the generic vcnl4000_chip_spec struct, so that instead of checking a chip specific boolean irq support, we check for a chip specific triggered buffer handler, and/or a chip specific irq thread handler. Signed-off-by: Mårten Lindahl --- drivers/iio/light/vcnl4000.c | 24 ++++++++++++++---------- 1 file changed, 14 insertions(+), 10 deletions(-) diff --git a/drivers/iio/light/vcnl4000.c b/drivers/iio/light/vcnl4000.c index 11b54b57e592..b2f60f3f8d44 100644 --- a/drivers/iio/light/vcnl4000.c +++ b/drivers/iio/light/vcnl4000.c @@ -150,11 +150,13 @@ struct vcnl4000_chip_spec { struct iio_chan_spec const *channels; const int num_channels; const struct iio_info *info; - bool irq_support; + const struct iio_buffer_setup_ops *buffer_setup_ops; int (*init)(struct vcnl4000_data *data); int (*measure_light)(struct vcnl4000_data *data, int *val); int (*measure_proximity)(struct vcnl4000_data *data, int *val); int (*set_power_state)(struct vcnl4000_data *data, bool on); + irqreturn_t (*irq_thread)(int irq, void *priv); + irqreturn_t (*trig_buffer_func)(int irq, void *priv); }; static const struct i2c_device_id vcnl4000_id[] = { @@ -1121,7 +1123,6 @@ static const struct vcnl4000_chip_spec vcnl4000_chip_spec_cfg[] = { .channels = vcnl4000_channels, .num_channels = ARRAY_SIZE(vcnl4000_channels), .info = &vcnl4000_info, - .irq_support = false, }, [VCNL4010] = { .prod = "VCNL4010/4020", @@ -1132,7 +1133,9 @@ static const struct vcnl4000_chip_spec vcnl4000_chip_spec_cfg[] = { .channels = vcnl4010_channels, .num_channels = ARRAY_SIZE(vcnl4010_channels), .info = &vcnl4010_info, - .irq_support = true, + .irq_thread = vcnl4010_irq_thread, + .trig_buffer_func = vcnl4010_trigger_handler, + .buffer_setup_ops = &vcnl4010_buffer_ops, }, [VCNL4040] = { .prod = "VCNL4040", @@ -1143,7 +1146,6 @@ static const struct vcnl4000_chip_spec vcnl4000_chip_spec_cfg[] = { .channels = vcnl4040_channels, .num_channels = ARRAY_SIZE(vcnl4040_channels), .info = &vcnl4040_info, - .irq_support = false, }, [VCNL4200] = { .prod = "VCNL4200", @@ -1154,7 +1156,6 @@ static const struct vcnl4000_chip_spec vcnl4000_chip_spec_cfg[] = { .channels = vcnl4000_channels, .num_channels = ARRAY_SIZE(vcnl4000_channels), .info = &vcnl4000_info, - .irq_support = false, }, }; @@ -1214,22 +1215,25 @@ static int vcnl4000_probe(struct i2c_client *client) indio_dev->name = VCNL4000_DRV_NAME; indio_dev->modes = INDIO_DIRECT_MODE; - if (client->irq && data->chip_spec->irq_support) { + if (data->chip_spec->trig_buffer_func && + data->chip_spec->buffer_setup_ops) { ret = devm_iio_triggered_buffer_setup(&client->dev, indio_dev, NULL, - vcnl4010_trigger_handler, - &vcnl4010_buffer_ops); + data->chip_spec->trig_buffer_func, + data->chip_spec->buffer_setup_ops); if (ret < 0) { dev_err(&client->dev, "unable to setup iio triggered buffer\n"); return ret; } + } + if (client->irq && data->chip_spec->irq_thread) { ret = devm_request_threaded_irq(&client->dev, client->irq, - NULL, vcnl4010_irq_thread, + NULL, data->chip_spec->irq_thread, IRQF_TRIGGER_FALLING | IRQF_ONESHOT, - "vcnl4010_irq", + "vcnl4000_irq", indio_dev); if (ret < 0) { dev_err(&client->dev, "irq request failed\n"); From patchwork Tue Jan 17 19:00:17 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: =?utf-8?q?M=C3=A5rten_Lindahl?= X-Patchwork-Id: 13105023 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id EA173C67871 for ; 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From: =?utf-8?q?M=C3=A5rten_Lindahl?= To: Jonathan Cameron CC: Lars-Peter Clausen , Andy Shevchenko , , , =?utf-8?q?M=C3=A5rten_Linda?= =?utf-8?q?hl?= Subject: [PATCH v5 3/3] iio: light: vcnl4000: Add interrupt support for vcnl4040 Date: Tue, 17 Jan 2023 20:00:17 +0100 Message-ID: <20230117190017.3789181-4-marten.lindahl@axis.com> X-Mailer: git-send-email 2.30.2 In-Reply-To: <20230117190017.3789181-1-marten.lindahl@axis.com> References: <20230117190017.3789181-1-marten.lindahl@axis.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-iio@vger.kernel.org Add support to configure proximity sensor interrupts and threshold limits for vcnl4040. If an interrupt is detected an event will be pushed to the event interface. Signed-off-by: Mårten Lindahl --- drivers/iio/light/vcnl4000.c | 169 +++++++++++++++++++++++++++++++++++ 1 file changed, 169 insertions(+) diff --git a/drivers/iio/light/vcnl4000.c b/drivers/iio/light/vcnl4000.c index b2f60f3f8d44..6bdfce9747f9 100644 --- a/drivers/iio/light/vcnl4000.c +++ b/drivers/iio/light/vcnl4000.c @@ -60,8 +60,11 @@ #define VCNL4200_AL_CONF 0x00 /* Ambient light configuration */ #define VCNL4200_PS_CONF1 0x03 /* Proximity configuration */ +#define VCNL4040_PS_THDL_LM 0x06 /* Proximity threshold low */ +#define VCNL4040_PS_THDH_LM 0x07 /* Proximity threshold high */ #define VCNL4200_PS_DATA 0x08 /* Proximity data */ #define VCNL4200_AL_DATA 0x09 /* Ambient light data */ +#define VCNL4040_INT_FLAGS 0x0b /* Interrupt register */ #define VCNL4200_DEV_ID 0x0e /* Device ID, slave address and version */ #define VCNL4040_DEV_ID 0x0c /* Device ID and version */ @@ -78,6 +81,9 @@ #define VCNL4040_ALS_CONF_ALS_SHUTDOWN BIT(0) #define VCNL4040_PS_CONF1_PS_SHUTDOWN BIT(0) #define VCNL4040_PS_CONF2_PS_IT GENMASK(3, 1) /* Proximity integration time */ +#define VCNL4040_PS_CONF2_PS_INT GENMASK(9, 8) /* Proximity interrupt mode */ +#define VCNL4040_PS_IF_AWAY BIT(8) /* Proximity event cross low threshold */ +#define VCNL4040_PS_IF_CLOSE BIT(9) /* Proximity event cross high threshold */ /* Bit masks for interrupt registers. */ #define VCNL4010_INT_THR_SEL BIT(0) /* Select threshold interrupt source */ @@ -138,6 +144,7 @@ struct vcnl4000_data { enum vcnl4000_device_ids id; int rev; int al_scale; + u8 ps_int; /* proximity interrupt mode */ const struct vcnl4000_chip_spec *chip_spec; struct mutex vcnl4000_lock; struct vcnl4200_channel vcnl4200_al; @@ -256,6 +263,10 @@ static int vcnl4200_set_power_state(struct vcnl4000_data *data, bool on) { int ret; + /* Do not power down if interrupts are enabled */ + if (!on && data->ps_int) + return 0; + ret = vcnl4000_write_als_enable(data, on); if (ret < 0) return ret; @@ -297,6 +308,7 @@ static int vcnl4200_init(struct vcnl4000_data *data) dev_dbg(&data->client->dev, "device id 0x%x", id); data->rev = (ret >> 8) & 0xf; + data->ps_int = 0; data->vcnl4200_al.reg = VCNL4200_AL_DATA; data->vcnl4200_ps.reg = VCNL4200_PS_DATA; @@ -797,6 +809,64 @@ static int vcnl4010_write_event(struct iio_dev *indio_dev, } } +static int vcnl4040_read_event(struct iio_dev *indio_dev, + const struct iio_chan_spec *chan, + enum iio_event_type type, + enum iio_event_direction dir, + enum iio_event_info info, + int *val, int *val2) +{ + int ret; + struct vcnl4000_data *data = iio_priv(indio_dev); + + switch (dir) { + case IIO_EV_DIR_RISING: + ret = i2c_smbus_read_word_data(data->client, + VCNL4040_PS_THDH_LM); + if (ret < 0) + return ret; + *val = ret; + return IIO_VAL_INT; + case IIO_EV_DIR_FALLING: + ret = i2c_smbus_read_word_data(data->client, + VCNL4040_PS_THDL_LM); + if (ret < 0) + return ret; + *val = ret; + return IIO_VAL_INT; + default: + return -EINVAL; + } +} + +static int vcnl4040_write_event(struct iio_dev *indio_dev, + const struct iio_chan_spec *chan, + enum iio_event_type type, + enum iio_event_direction dir, + enum iio_event_info info, + int val, int val2) +{ + int ret; + struct vcnl4000_data *data = iio_priv(indio_dev); + + switch (dir) { + case IIO_EV_DIR_RISING: + ret = i2c_smbus_write_word_data(data->client, + VCNL4040_PS_THDH_LM, val); + if (ret < 0) + return ret; + return IIO_VAL_INT; + case IIO_EV_DIR_FALLING: + ret = i2c_smbus_write_word_data(data->client, + VCNL4040_PS_THDL_LM, val); + if (ret < 0) + return ret; + return IIO_VAL_INT; + default: + return -EINVAL; + } +} + static bool vcnl4010_is_thr_enabled(struct vcnl4000_data *data) { int ret; @@ -879,6 +949,86 @@ static int vcnl4010_write_event_config(struct iio_dev *indio_dev, } } +static int vcnl4040_read_event_config(struct iio_dev *indio_dev, + const struct iio_chan_spec *chan, + enum iio_event_type type, + enum iio_event_direction dir) +{ + int ret; + struct vcnl4000_data *data = iio_priv(indio_dev); + + ret = i2c_smbus_read_word_data(data->client, VCNL4200_PS_CONF1); + if (ret < 0) + return ret; + + data->ps_int = FIELD_GET(VCNL4040_PS_CONF2_PS_INT, ret); + + return (dir == IIO_EV_DIR_RISING) ? + FIELD_GET(VCNL4040_PS_IF_AWAY, ret) : + FIELD_GET(VCNL4040_PS_IF_CLOSE, ret); +} + +static int vcnl4040_write_event_config(struct iio_dev *indio_dev, + const struct iio_chan_spec *chan, + enum iio_event_type type, + enum iio_event_direction dir, int state) +{ + int ret; + u16 val, mask; + struct vcnl4000_data *data = iio_priv(indio_dev); + + mutex_lock(&data->vcnl4000_lock); + + ret = i2c_smbus_read_word_data(data->client, VCNL4200_PS_CONF1); + if (ret < 0) + goto out; + + if (dir == IIO_EV_DIR_RISING) + mask = VCNL4040_PS_IF_AWAY; + else + mask = VCNL4040_PS_IF_CLOSE; + + val = state ? (ret | mask) : (ret & ~mask); + + data->ps_int = FIELD_GET(VCNL4040_PS_CONF2_PS_INT, val); + ret = i2c_smbus_write_word_data(data->client, VCNL4200_PS_CONF1, val); + +out: + mutex_unlock(&data->vcnl4000_lock); + data->chip_spec->set_power_state(data, data->ps_int != 0); + + return ret; +} + +static irqreturn_t vcnl4040_irq_thread(int irq, void *p) +{ + struct iio_dev *indio_dev = p; + struct vcnl4000_data *data = iio_priv(indio_dev); + int ret; + + ret = i2c_smbus_read_word_data(data->client, VCNL4040_INT_FLAGS); + if (ret < 0) + return IRQ_HANDLED; + + if (ret & VCNL4040_PS_IF_CLOSE) { + iio_push_event(indio_dev, + IIO_UNMOD_EVENT_CODE(IIO_PROXIMITY, 0, + IIO_EV_TYPE_THRESH, + IIO_EV_DIR_RISING), + iio_get_time_ns(indio_dev)); + } + + if (ret & VCNL4040_PS_IF_AWAY) { + iio_push_event(indio_dev, + IIO_UNMOD_EVENT_CODE(IIO_PROXIMITY, 0, + IIO_EV_TYPE_THRESH, + IIO_EV_DIR_FALLING), + iio_get_time_ns(indio_dev)); + } + + return IRQ_HANDLED; +} + static ssize_t vcnl4000_read_near_level(struct iio_dev *indio_dev, uintptr_t priv, const struct iio_chan_spec *chan, @@ -1042,6 +1192,18 @@ static const struct iio_event_spec vcnl4000_event_spec[] = { } }; +static const struct iio_event_spec vcnl4040_event_spec[] = { + { + .type = IIO_EV_TYPE_THRESH, + .dir = IIO_EV_DIR_RISING, + .mask_separate = BIT(IIO_EV_INFO_VALUE) | BIT(IIO_EV_INFO_ENABLE), + }, { + .type = IIO_EV_TYPE_THRESH, + .dir = IIO_EV_DIR_FALLING, + .mask_separate = BIT(IIO_EV_INFO_VALUE) | BIT(IIO_EV_INFO_ENABLE), + }, +}; + static const struct iio_chan_spec vcnl4000_channels[] = { { .type = IIO_LIGHT, @@ -1090,6 +1252,8 @@ static const struct iio_chan_spec vcnl4040_channels[] = { BIT(IIO_CHAN_INFO_INT_TIME), .info_mask_separate_available = BIT(IIO_CHAN_INFO_INT_TIME), .ext_info = vcnl4000_ext_info, + .event_spec = vcnl4040_event_spec, + .num_event_specs = ARRAY_SIZE(vcnl4040_event_spec), } }; @@ -1110,6 +1274,10 @@ static const struct iio_info vcnl4010_info = { static const struct iio_info vcnl4040_info = { .read_raw = vcnl4000_read_raw, .write_raw = vcnl4040_write_raw, + .read_event_value = vcnl4040_read_event, + .write_event_value = vcnl4040_write_event, + .read_event_config = vcnl4040_read_event_config, + .write_event_config = vcnl4040_write_event_config, .read_avail = vcnl4040_read_avail, }; @@ -1146,6 +1314,7 @@ static const struct vcnl4000_chip_spec vcnl4000_chip_spec_cfg[] = { .channels = vcnl4040_channels, .num_channels = ARRAY_SIZE(vcnl4040_channels), .info = &vcnl4040_info, + .irq_thread = vcnl4040_irq_thread, }, [VCNL4200] = { .prod = "VCNL4200",