From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from e28smtp09.in.ibm.com (e28smtp09.in.ibm.com [122.248.162.9]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) by lists.ozlabs.org (Postfix) with ESMTPS id 7FEB71A1E65 for ; Mon, 20 Apr 2015 17:59:47 +1000 (AEST) Received: from /spool/local by e28smtp09.in.ibm.com with IBM ESMTP SMTP Gateway: Authorized Use Only! Violators will be prosecuted for from ; Mon, 20 Apr 2015 13:29:45 +0530 Received: from d28relay04.in.ibm.com (d28relay04.in.ibm.com [9.184.220.61]) by d28dlp01.in.ibm.com (Postfix) with ESMTP id 9C4D4E004C for ; Mon, 20 Apr 2015 13:32:19 +0530 (IST) Received: from d28av01.in.ibm.com (d28av01.in.ibm.com [9.184.220.63]) by d28relay04.in.ibm.com (8.14.9/8.14.9/NCO v10.0) with ESMTP id t3K7xfm162849168 for ; Mon, 20 Apr 2015 13:29:41 +0530 Received: from d28av01.in.ibm.com (localhost [127.0.0.1]) by d28av01.in.ibm.com (8.14.4/8.14.4/NCO v10.0 AVout) with ESMTP id t3K7xeld031380 for ; Mon, 20 Apr 2015 13:29:41 +0530 Subject: [PATCH v3 1/3] powerpc/powernv: Add OPAL interfaces for accessing and modifying system LED states From: Vasant Hegde To: linuxppc-dev@lists.ozlabs.org, linux-leds@vger.kernel.org Date: Mon, 20 Apr 2015 13:29:40 +0530 Message-ID: <20150420075927.12371.59080.stgit@localhost.localdomain> In-Reply-To: <20150420075558.12371.6697.stgit@localhost.localdomain> References: <20150420075558.12371.6697.stgit@localhost.localdomain> MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Cc: stewart@linux.vnet.ibm.com, cooloney@gmail.com, rpurdie@rpsys.net, j.anaszewski@samsung.com, khandual@linux.vnet.ibm.com List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , From: Anshuman Khandual This patch registers the following two new OPAL interfaces calls for the platform LED subsystem. With the help of these new OPAL calls, the kernel will be able to get or set the state of various individual LEDs on the system at any given location code which is passed through the LED specific device tree nodes. (1) OPAL_LEDS_GET_INDICATOR opal_leds_get_ind (2) OPAL_LEDS_SET_INDICATOR opal_leds_set_ind Signed-off-by: Anshuman Khandual Signed-off-by: Vasant Hegde Acked-by: Stewart Smith Tested-by: Stewart Smith --- arch/powerpc/include/asm/opal-api.h | 29 +++++++++++++++++++++++- arch/powerpc/include/asm/opal.h | 5 ++++ arch/powerpc/platforms/powernv/opal-wrappers.S | 2 ++ 3 files changed, 35 insertions(+), 1 deletion(-) diff --git a/arch/powerpc/include/asm/opal-api.h b/arch/powerpc/include/asm/opal-api.h index 0321a90..64508eb 100644 --- a/arch/powerpc/include/asm/opal-api.h +++ b/arch/powerpc/include/asm/opal-api.h @@ -153,7 +153,9 @@ #define OPAL_FLASH_READ 110 #define OPAL_FLASH_WRITE 111 #define OPAL_FLASH_ERASE 112 -#define OPAL_LAST 112 +#define OPAL_LEDS_GET_INDICATOR 114 +#define OPAL_LEDS_SET_INDICATOR 115 +#define OPAL_LAST 115 /* Device tree flags */ @@ -730,6 +732,31 @@ struct opal_i2c_request { __be64 buffer_ra; /* Buffer real address */ }; +/* LED Mode */ +#define LED_MODE_LIGHT_PATH "lightpath" +#define LED_MODE_GUIDING_LIGHT "guidinglight" + +/* LED type */ +#define LED_TYPE_IDENTIFY "identify" +#define LED_TYPE_FAULT "fault" +#define LED_TYPE_ATTENTION "attention" + +/* LED location */ +#define LED_LOC_ENCLOSURE "enclosure" +#define LED_LOC_DESCENDENT "descendent" + +enum OpalSlotLedType { + OPAL_SLOT_LED_TYPE_ID = 0, /* IDENTIFY LED */ + OPAL_SLOT_LED_TYPE_FAULT = 1, /* FAULT LED */ + OPAL_SLOT_LED_TYPE_ATTN = 2, /* System Attention LED */ + OPAL_SLOT_LED_TYPE_MAX = 3 +}; + +enum OpalSlotLedState { + OPAL_SLOT_LED_STATE_OFF = 0, /* LED is OFF */ + OPAL_SLOT_LED_STATE_ON = 1 /* LED is ON */ +}; + #endif /* __ASSEMBLY__ */ #endif /* __OPAL_API_H */ diff --git a/arch/powerpc/include/asm/opal.h b/arch/powerpc/include/asm/opal.h index 042af1a..e06dc7e 100644 --- a/arch/powerpc/include/asm/opal.h +++ b/arch/powerpc/include/asm/opal.h @@ -193,6 +193,11 @@ int64_t opal_ipmi_recv(uint64_t interface, struct opal_ipmi_msg *msg, uint64_t *msg_len); int64_t opal_i2c_request(uint64_t async_token, uint32_t bus_id, struct opal_i2c_request *oreq); +int64_t opal_leds_get_ind(char *loc_code, u64 *led_mask, + u64 *led_value, u64 *max_led_type); +int64_t opal_leds_set_ind(uint64_t token, char *loc_code, const u64 led_mask, + const u64 led_value, u64 *max_led_type); + int64_t opal_flash_read(uint64_t id, uint64_t offset, uint64_t buf, uint64_t size, uint64_t token); diff --git a/arch/powerpc/platforms/powernv/opal-wrappers.S b/arch/powerpc/platforms/powernv/opal-wrappers.S index 4e74037..20d4da4 100644 --- a/arch/powerpc/platforms/powernv/opal-wrappers.S +++ b/arch/powerpc/platforms/powernv/opal-wrappers.S @@ -295,3 +295,5 @@ OPAL_CALL(opal_i2c_request, OPAL_I2C_REQUEST); OPAL_CALL(opal_flash_read, OPAL_FLASH_READ); OPAL_CALL(opal_flash_write, OPAL_FLASH_WRITE); OPAL_CALL(opal_flash_erase, OPAL_FLASH_ERASE); +OPAL_CALL(opal_leds_get_ind, OPAL_LEDS_GET_INDICATOR); +OPAL_CALL(opal_leds_set_ind, OPAL_LEDS_SET_INDICATOR);