Message ID | 20200626151424.30117-12-peter.maydell@linaro.org |
---|---|
State | New |
Headers | show
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[81.2.115.148]) by smtp.gmail.com with ESMTPSA id w13sm37838852wrr.67.2020.06.26.08.14.37 for <qemu-devel@nongnu.org> (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 26 Jun 2020 08:14:38 -0700 (PDT) From: Peter Maydell <peter.maydell@linaro.org> To: qemu-devel@nongnu.org Subject: [PULL 11/57] hw/misc/pca9552: Trace GPIO change events Date: Fri, 26 Jun 2020 16:13:38 +0100 Message-Id: <20200626151424.30117-12-peter.maydell@linaro.org> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20200626151424.30117-1-peter.maydell@linaro.org> References: <20200626151424.30117-1-peter.maydell@linaro.org> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Received-SPF: pass client-ip=2a00:1450:4864:20::42b; envelope-from=peter.maydell@linaro.org; helo=mail-wr1-x42b.google.com X-detected-operating-system: by eggs.gnu.org: No matching host in p0f cache. That's all we know. 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[PULL,01/57] hw/arm/aspeed: Remove extraneous MemoryRegion object owner
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diff --git a/hw/misc/pca9552.c b/hw/misc/pca9552.c index 41f8ad213dd..1c3ad57432a 100644 --- a/hw/misc/pca9552.c +++ b/hw/misc/pca9552.c @@ -82,6 +82,21 @@ static void pca955x_display_pins_status(PCA955xState *s, buf[i] = '\0'; trace_pca955x_gpio_status(s->description, buf); } + if (trace_event_get_state_backends(TRACE_PCA955X_GPIO_CHANGE)) { + for (i = 0; i < k->pin_count; i++) { + if (extract32(pins_changed, i, 1)) { + unsigned new_state = extract32(pins_status, i, 1); + + /* + * We display the state using the PCA logic ("active-high"). + * This is not the state of the LED, which signal might be + * wired "active-low" on the board. + */ + trace_pca955x_gpio_change(s->description, i, + !new_state, new_state); + } + } + } } static void pca955x_update_pin_input(PCA955xState *s) diff --git a/hw/misc/trace-events b/hw/misc/trace-events index bd7bd37ea8d..ebea53735c4 100644 --- a/hw/misc/trace-events +++ b/hw/misc/trace-events @@ -212,3 +212,4 @@ grlib_apb_pnp_read(uint64_t addr, uint32_t value) "APB PnP read addr:0x%03"PRIx6 # pca9552.c pca955x_gpio_status(const char *description, const char *buf) "%s GPIOs 0-15 [%s]" +pca955x_gpio_change(const char *description, unsigned id, unsigned prev_state, unsigned current_state) "%s GPIO id:%u status: %u -> %u"