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Date: Wed, 27 May 2020 13:53:42 +0200
From: Nicolas Saenz Julienne <nsaenzjulienne@...e.de>
To: bcm-kernel-feedback-list@...adcom.com,
linux-rpi-kernel@...ts.infradead.org,
linux-arm-kernel@...ts.infradead.org,
Nicolas Saenz Julienne <nsaenzjulienne@...e.de>,
Florian Fainelli <f.fainelli@...il.com>,
Ray Jui <rjui@...adcom.com>,
Scott Branden <sbranden@...adcom.com>
Cc: kernel-list@...pberrypi.com, laurent.pinchart@...asonboard.com,
gregkh@...uxfoundation.org, devel@...verdev.osuosl.org,
linux-kernel@...r.kernel.org
Subject: [RFC 37/50] staging: vchiq: Unify fourcc definition mechanisms
There is already enough duplication with regard to fourcc generation in
the kernel. Let's at least use the same macro all over the vchiq
ecosystem.
Signed-off-by: Nicolas Saenz Julienne <nsaenzjulienne@...e.de>
---
drivers/staging/vc04_services/bcm2835-audio/bcm2835-vchiq.c | 2 +-
.../vc04_services/bcm2835-audio/vc_vchi_audioserv_defs.h | 5 ++---
drivers/staging/vc04_services/interface/vchi/vchi.h | 3 ---
drivers/staging/vc04_services/vc-sm-cma/vc_sm_cma_vchi.c | 2 +-
drivers/staging/vc04_services/vc-sm-cma/vc_sm_defs.h | 3 ---
drivers/staging/vc04_services/vchiq-mmal/mmal-msg.h | 1 -
drivers/staging/vc04_services/vchiq-mmal/mmal-vchiq.c | 2 +-
7 files changed, 5 insertions(+), 13 deletions(-)
diff --git a/drivers/staging/vc04_services/bcm2835-audio/bcm2835-vchiq.c b/drivers/staging/vc04_services/bcm2835-audio/bcm2835-vchiq.c
index 18309578e9a2..55f1e684eef1 100644
--- a/drivers/staging/vc04_services/bcm2835-audio/bcm2835-vchiq.c
+++ b/drivers/staging/vc04_services/bcm2835-audio/bcm2835-vchiq.c
@@ -125,7 +125,7 @@ vc_vchi_audio_init(struct vchiq_instance *vchiq_instance,
struct vchiq_service_params params = {
.version = VC_AUDIOSERV_VER,
.version_min = VC_AUDIOSERV_MIN_VER,
- .fourcc = VC_AUDIO_SERVER_NAME,
+ .fourcc = VCHIQ_MAKE_FOURCC('A', 'U', 'D', 'S'),
.callback = audio_vchi_callback,
.userdata = instance,
};
diff --git a/drivers/staging/vc04_services/bcm2835-audio/vc_vchi_audioserv_defs.h b/drivers/staging/vc04_services/bcm2835-audio/vc_vchi_audioserv_defs.h
index d6401e914ac9..b4fa239c5ebe 100644
--- a/drivers/staging/vc04_services/bcm2835-audio/vc_vchi_audioserv_defs.h
+++ b/drivers/staging/vc04_services/bcm2835-audio/vc_vchi_audioserv_defs.h
@@ -8,9 +8,8 @@
#define VC_AUDIOSERV_VER 2
/* FourCC codes used for VCHI communication */
-#define VC_AUDIO_SERVER_NAME MAKE_FOURCC("AUDS")
-#define VC_AUDIO_WRITE_COOKIE1 MAKE_FOURCC("BCMA")
-#define VC_AUDIO_WRITE_COOKIE2 MAKE_FOURCC("DATA")
+#define VC_AUDIO_WRITE_COOKIE1 VCHIQ_MAKE_FOURCC('B', 'C', 'M', 'A')
+#define VC_AUDIO_WRITE_COOKIE2 VCHIQ_MAKE_FOURCC('D', 'A', 'T', 'A')
/*
* List of screens that are currently supported
diff --git a/drivers/staging/vc04_services/interface/vchi/vchi.h b/drivers/staging/vc04_services/interface/vchi/vchi.h
index 59559d4cd5f1..7108c254a38a 100644
--- a/drivers/staging/vc04_services/interface/vchi/vchi.h
+++ b/drivers/staging/vc04_services/interface/vchi/vchi.h
@@ -8,9 +8,6 @@
* Global defs
*****************************************************************************/
-// Macros to manipulate 'FOURCC' values
-#define MAKE_FOURCC(x) ((int32_t)((x[0] << 24) | (x[1] << 16) | (x[2] << 8) | x[3]))
-
// Opaque handle for a VCHIQ instance
struct vchiq_instance;
diff --git a/drivers/staging/vc04_services/vc-sm-cma/vc_sm_cma_vchi.c b/drivers/staging/vc04_services/vc-sm-cma/vc_sm_cma_vchi.c
index 2de67ce18be2..0b1a510d6bab 100644
--- a/drivers/staging/vc04_services/vc-sm-cma/vc_sm_cma_vchi.c
+++ b/drivers/staging/vc04_services/vc-sm-cma/vc_sm_cma_vchi.c
@@ -294,7 +294,7 @@ struct sm_instance *vc_sm_cma_vchi_init(struct vchiq_instance *vchiq_instance,
struct vchiq_service_params params = {
.version = VC_SM_VER,
.version_min = VC_SM_MIN_VER,
- .fourcc = VC_SM_SERVER_NAME,
+ .fourcc = VCHIQ_MAKE_FOURCC('S', 'M', 'E', 'M'),
.callback = vc_sm_cma_vchi_callback,
.userdata = NULL,
};
diff --git a/drivers/staging/vc04_services/vc-sm-cma/vc_sm_defs.h b/drivers/staging/vc04_services/vc-sm-cma/vc_sm_defs.h
index 8a0d1f6dbfe8..4e6354000dfd 100644
--- a/drivers/staging/vc04_services/vc-sm-cma/vc_sm_defs.h
+++ b/drivers/staging/vc04_services/vc-sm-cma/vc_sm_defs.h
@@ -15,9 +15,6 @@
#ifndef __VC_SM_DEFS_H__INCLUDED__
#define __VC_SM_DEFS_H__INCLUDED__
-/* FourCC code used for VCHI connection */
-#define VC_SM_SERVER_NAME MAKE_FOURCC("SMEM")
-
/* Maximum message length */
#define VC_SM_MAX_MSG_LEN (sizeof(union vc_sm_msg_union_t) + \
sizeof(struct vc_sm_msg_hdr_t))
diff --git a/drivers/staging/vc04_services/vchiq-mmal/mmal-msg.h b/drivers/staging/vc04_services/vchiq-mmal/mmal-msg.h
index bd83159403e5..ab63835ce01c 100644
--- a/drivers/staging/vc04_services/vchiq-mmal/mmal-msg.h
+++ b/drivers/staging/vc04_services/vchiq-mmal/mmal-msg.h
@@ -28,7 +28,6 @@
#define VC_MMAL_VER 15
#define VC_MMAL_MIN_VER 10
-#define VC_MMAL_SERVER_NAME MAKE_FOURCC("mmal")
/* max total message size is 512 bytes */
#define MMAL_MSG_MAX_SIZE 512
diff --git a/drivers/staging/vc04_services/vchiq-mmal/mmal-vchiq.c b/drivers/staging/vc04_services/vchiq-mmal/mmal-vchiq.c
index 3707212d8e7e..d35d2b50991b 100644
--- a/drivers/staging/vc04_services/vchiq-mmal/mmal-vchiq.c
+++ b/drivers/staging/vc04_services/vchiq-mmal/mmal-vchiq.c
@@ -2097,7 +2097,7 @@ int vchiq_mmal_init(struct vchiq_mmal_instance **out_instance)
struct vchiq_service_params params = {
.version = VC_MMAL_VER,
.version_min = VC_MMAL_MIN_VER,
- .fourcc = VC_MMAL_SERVER_NAME,
+ .fourcc = VCHIQ_MAKE_FOURCC('m', 'm', 'a', 'l'),
.callback = service_callback,
.userdata = NULL,
};
--
2.26.2
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