From 37f49e37ab4cb5d0bc4c60eb5c6d4dd57db767bb Mon Sep 17 00:00:00 2001
From: hc <hc@nodka.com>
Date: Fri, 10 May 2024 07:44:59 +0000
Subject: [PATCH] gmac get mac form eeprom
---
kernel/drivers/staging/media/imx/imx-media-internal-sd.c | 406 +++++++++++++++++++++++++--------------------------------
1 files changed, 176 insertions(+), 230 deletions(-)
diff --git a/kernel/drivers/staging/media/imx/imx-media-internal-sd.c b/kernel/drivers/staging/media/imx/imx-media-internal-sd.c
index daf66c2..da4109b 100644
--- a/kernel/drivers/staging/media/imx/imx-media-internal-sd.c
+++ b/kernel/drivers/staging/media/imx/imx-media-internal-sd.c
@@ -1,246 +1,168 @@
+// SPDX-License-Identifier: GPL-2.0+
/*
* Media driver for Freescale i.MX5/6 SOC
*
- * Adds the internal subdevices and the media links between them.
+ * Adds the IPU internal subdevices and the media links between them.
*
* Copyright (c) 2016 Mentor Graphics Inc.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
*/
#include <linux/platform_device.h>
#include "imx-media.h"
-
-enum isd_enum {
- isd_csi0 = 0,
- isd_csi1,
- isd_vdic,
- isd_ic_prp,
- isd_ic_prpenc,
- isd_ic_prpvf,
- num_isd,
-};
-
-static const struct internal_subdev_id {
- enum isd_enum index;
- const char *name;
- u32 grp_id;
-} isd_id[num_isd] = {
- [isd_csi0] = {
- .index = isd_csi0,
- .grp_id = IMX_MEDIA_GRP_ID_CSI0,
- .name = "imx-ipuv3-csi",
- },
- [isd_csi1] = {
- .index = isd_csi1,
- .grp_id = IMX_MEDIA_GRP_ID_CSI1,
- .name = "imx-ipuv3-csi",
- },
- [isd_vdic] = {
- .index = isd_vdic,
- .grp_id = IMX_MEDIA_GRP_ID_VDIC,
- .name = "imx-ipuv3-vdic",
- },
- [isd_ic_prp] = {
- .index = isd_ic_prp,
- .grp_id = IMX_MEDIA_GRP_ID_IC_PRP,
- .name = "imx-ipuv3-ic",
- },
- [isd_ic_prpenc] = {
- .index = isd_ic_prpenc,
- .grp_id = IMX_MEDIA_GRP_ID_IC_PRPENC,
- .name = "imx-ipuv3-ic",
- },
- [isd_ic_prpvf] = {
- .index = isd_ic_prpvf,
- .grp_id = IMX_MEDIA_GRP_ID_IC_PRPVF,
- .name = "imx-ipuv3-ic",
- },
-};
-
-struct internal_subdev;
-
-struct internal_link {
- const struct internal_subdev *remote;
- int local_pad;
- int remote_pad;
-};
/* max pads per internal-sd */
#define MAX_INTERNAL_PADS 8
/* max links per internal-sd pad */
#define MAX_INTERNAL_LINKS 8
+struct internal_subdev;
+
+struct internal_link {
+ int remote;
+ int local_pad;
+ int remote_pad;
+};
+
struct internal_pad {
+ int num_links;
struct internal_link link[MAX_INTERNAL_LINKS];
};
-static const struct internal_subdev {
- const struct internal_subdev_id *id;
+struct internal_subdev {
+ u32 grp_id;
struct internal_pad pad[MAX_INTERNAL_PADS];
-} int_subdev[num_isd] = {
- [isd_csi0] = {
- .id = &isd_id[isd_csi0],
+
+ struct v4l2_subdev * (*sync_register)(struct v4l2_device *v4l2_dev,
+ struct device *ipu_dev,
+ struct ipu_soc *ipu,
+ u32 grp_id);
+ int (*sync_unregister)(struct v4l2_subdev *sd);
+};
+
+static const struct internal_subdev int_subdev[NUM_IPU_SUBDEVS] = {
+ [IPU_CSI0] = {
+ .grp_id = IMX_MEDIA_GRP_ID_IPU_CSI0,
.pad[CSI_SRC_PAD_DIRECT] = {
+ .num_links = 2,
.link = {
{
.local_pad = CSI_SRC_PAD_DIRECT,
- .remote = &int_subdev[isd_ic_prp],
+ .remote = IPU_IC_PRP,
.remote_pad = PRP_SINK_PAD,
}, {
.local_pad = CSI_SRC_PAD_DIRECT,
- .remote = &int_subdev[isd_vdic],
+ .remote = IPU_VDIC,
.remote_pad = VDIC_SINK_PAD_DIRECT,
},
},
},
},
- [isd_csi1] = {
- .id = &isd_id[isd_csi1],
+ [IPU_CSI1] = {
+ .grp_id = IMX_MEDIA_GRP_ID_IPU_CSI1,
.pad[CSI_SRC_PAD_DIRECT] = {
+ .num_links = 2,
.link = {
{
.local_pad = CSI_SRC_PAD_DIRECT,
- .remote = &int_subdev[isd_ic_prp],
+ .remote = IPU_IC_PRP,
.remote_pad = PRP_SINK_PAD,
}, {
.local_pad = CSI_SRC_PAD_DIRECT,
- .remote = &int_subdev[isd_vdic],
+ .remote = IPU_VDIC,
.remote_pad = VDIC_SINK_PAD_DIRECT,
},
},
},
},
- [isd_vdic] = {
- .id = &isd_id[isd_vdic],
+ [IPU_VDIC] = {
+ .grp_id = IMX_MEDIA_GRP_ID_IPU_VDIC,
+ .sync_register = imx_media_vdic_register,
+ .sync_unregister = imx_media_vdic_unregister,
.pad[VDIC_SRC_PAD_DIRECT] = {
+ .num_links = 1,
.link = {
{
.local_pad = VDIC_SRC_PAD_DIRECT,
- .remote = &int_subdev[isd_ic_prp],
+ .remote = IPU_IC_PRP,
.remote_pad = PRP_SINK_PAD,
},
},
},
},
- [isd_ic_prp] = {
- .id = &isd_id[isd_ic_prp],
+ [IPU_IC_PRP] = {
+ .grp_id = IMX_MEDIA_GRP_ID_IPU_IC_PRP,
+ .sync_register = imx_media_ic_register,
+ .sync_unregister = imx_media_ic_unregister,
.pad[PRP_SRC_PAD_PRPENC] = {
+ .num_links = 1,
.link = {
{
.local_pad = PRP_SRC_PAD_PRPENC,
- .remote = &int_subdev[isd_ic_prpenc],
- .remote_pad = 0,
+ .remote = IPU_IC_PRPENC,
+ .remote_pad = PRPENCVF_SINK_PAD,
},
},
},
.pad[PRP_SRC_PAD_PRPVF] = {
+ .num_links = 1,
.link = {
{
.local_pad = PRP_SRC_PAD_PRPVF,
- .remote = &int_subdev[isd_ic_prpvf],
- .remote_pad = 0,
+ .remote = IPU_IC_PRPVF,
+ .remote_pad = PRPENCVF_SINK_PAD,
},
},
},
},
- [isd_ic_prpenc] = {
- .id = &isd_id[isd_ic_prpenc],
+ [IPU_IC_PRPENC] = {
+ .grp_id = IMX_MEDIA_GRP_ID_IPU_IC_PRPENC,
+ .sync_register = imx_media_ic_register,
+ .sync_unregister = imx_media_ic_unregister,
},
- [isd_ic_prpvf] = {
- .id = &isd_id[isd_ic_prpvf],
+ [IPU_IC_PRPVF] = {
+ .grp_id = IMX_MEDIA_GRP_ID_IPU_IC_PRPVF,
+ .sync_register = imx_media_ic_register,
+ .sync_unregister = imx_media_ic_unregister,
},
};
-/* form a device name given an internal subdev and ipu id */
-static inline void isd_to_devname(char *devname, int sz,
- const struct internal_subdev *isd,
- int ipu_id)
+static int create_internal_link(struct imx_media_dev *imxmd,
+ struct v4l2_subdev *src,
+ struct v4l2_subdev *sink,
+ const struct internal_link *link)
{
- int pdev_id = ipu_id * num_isd + isd->id->index;
-
- snprintf(devname, sz, "%s.%d", isd->id->name, pdev_id);
-}
-
-static const struct internal_subdev *find_intsd_by_grp_id(u32 grp_id)
-{
- enum isd_enum i;
-
- for (i = 0; i < num_isd; i++) {
- const struct internal_subdev *isd = &int_subdev[i];
-
- if (isd->id->grp_id == grp_id)
- return isd;
- }
-
- return NULL;
-}
-
-static struct v4l2_subdev *find_sink(struct imx_media_dev *imxmd,
- struct v4l2_subdev *src,
- const struct internal_link *link)
-{
- char sink_devname[32];
- int ipu_id;
-
- /*
- * retrieve IPU id from subdev name, note: can't get this from
- * struct imx_media_internal_sd_platformdata because if src is
- * a CSI, it has different struct ipu_client_platformdata which
- * does not contain IPU id.
- */
- if (sscanf(src->name, "ipu%d", &ipu_id) != 1)
- return NULL;
-
- isd_to_devname(sink_devname, sizeof(sink_devname),
- link->remote, ipu_id - 1);
-
- return imx_media_find_subdev_by_devname(imxmd, sink_devname);
-}
-
-static int create_ipu_internal_link(struct imx_media_dev *imxmd,
- struct v4l2_subdev *src,
- const struct internal_link *link)
-{
- struct v4l2_subdev *sink;
int ret;
- sink = find_sink(imxmd, src, link);
- if (!sink)
- return -ENODEV;
+ /* skip if this link already created */
+ if (media_entity_find_link(&src->entity.pads[link->local_pad],
+ &sink->entity.pads[link->remote_pad]))
+ return 0;
- v4l2_info(&imxmd->v4l2_dev, "%s:%d -> %s:%d\n",
- src->name, link->local_pad,
- sink->name, link->remote_pad);
+ dev_dbg(imxmd->md.dev, "%s:%d -> %s:%d\n",
+ src->name, link->local_pad,
+ sink->name, link->remote_pad);
ret = media_create_pad_link(&src->entity, link->local_pad,
&sink->entity, link->remote_pad, 0);
if (ret)
- v4l2_err(&imxmd->v4l2_dev,
- "create_pad_link failed: %d\n", ret);
+ v4l2_err(&imxmd->v4l2_dev, "%s failed: %d\n", __func__, ret);
return ret;
}
-int imx_media_create_internal_links(struct imx_media_dev *imxmd,
- struct v4l2_subdev *sd)
+static int create_ipu_internal_links(struct imx_media_dev *imxmd,
+ const struct internal_subdev *intsd,
+ struct v4l2_subdev *sd,
+ int ipu_id)
{
- const struct internal_subdev *intsd;
const struct internal_pad *intpad;
const struct internal_link *link;
struct media_pad *pad;
int i, j, ret;
-
- intsd = find_intsd_by_grp_id(sd->grp_id);
- if (!intsd)
- return -ENODEV;
/* create the source->sink links */
for (i = 0; i < sd->entity.num_pads; i++) {
@@ -250,13 +172,13 @@
if (!(pad->flags & MEDIA_PAD_FL_SOURCE))
continue;
- for (j = 0; ; j++) {
+ for (j = 0; j < intpad->num_links; j++) {
+ struct v4l2_subdev *sink;
+
link = &intpad->link[j];
+ sink = imxmd->sync_sd[ipu_id][link->remote];
- if (!link->remote)
- break;
-
- ret = create_ipu_internal_link(imxmd, sd, link);
+ ret = create_internal_link(imxmd, sd, sink, link);
if (ret)
return ret;
}
@@ -265,96 +187,120 @@
return 0;
}
-/* register an internal subdev as a platform device */
-static int add_internal_subdev(struct imx_media_dev *imxmd,
- const struct internal_subdev *isd,
- int ipu_id)
+int imx_media_register_ipu_internal_subdevs(struct imx_media_dev *imxmd,
+ struct v4l2_subdev *csi)
{
- struct imx_media_internal_sd_platformdata pdata;
- struct platform_device_info pdevinfo = {};
- struct platform_device *pdev;
+ struct device *ipu_dev = csi->dev->parent;
+ const struct internal_subdev *intsd;
+ struct v4l2_subdev *sd;
+ struct ipu_soc *ipu;
+ int i, ipu_id, ret;
- pdata.grp_id = isd->id->grp_id;
-
- /* the id of IPU this subdev will control */
- pdata.ipu_id = ipu_id;
-
- /* create subdev name */
- imx_media_grp_id_to_sd_name(pdata.sd_name, sizeof(pdata.sd_name),
- pdata.grp_id, ipu_id);
-
- pdevinfo.name = isd->id->name;
- pdevinfo.id = ipu_id * num_isd + isd->id->index;
- pdevinfo.parent = imxmd->md.dev;
- pdevinfo.data = &pdata;
- pdevinfo.size_data = sizeof(pdata);
- pdevinfo.dma_mask = DMA_BIT_MASK(32);
-
- pdev = platform_device_register_full(&pdevinfo);
- if (IS_ERR(pdev))
- return PTR_ERR(pdev);
-
- return imx_media_add_async_subdev(imxmd, NULL, pdev);
-}
-
-/* adds the internal subdevs in one ipu */
-static int add_ipu_internal_subdevs(struct imx_media_dev *imxmd, int ipu_id)
-{
- enum isd_enum i;
-
- for (i = 0; i < num_isd; i++) {
- const struct internal_subdev *isd = &int_subdev[i];
- int ret;
-
- /*
- * the CSIs are represented in the device-tree, so those
- * devices are already added to the async subdev list by
- * of_parse_subdev().
- */
- switch (isd->id->grp_id) {
- case IMX_MEDIA_GRP_ID_CSI0:
- case IMX_MEDIA_GRP_ID_CSI1:
- ret = 0;
- break;
- default:
- ret = add_internal_subdev(imxmd, isd, ipu_id);
- break;
- }
-
- if (ret)
- return ret;
+ ipu = dev_get_drvdata(ipu_dev);
+ if (!ipu) {
+ v4l2_err(&imxmd->v4l2_dev, "invalid IPU device!\n");
+ return -ENODEV;
}
- return 0;
-}
+ ipu_id = ipu_get_num(ipu);
+ if (ipu_id > 1) {
+ v4l2_err(&imxmd->v4l2_dev, "invalid IPU id %d!\n", ipu_id);
+ return -ENODEV;
+ }
-int imx_media_add_internal_subdevs(struct imx_media_dev *imxmd)
-{
- int ret;
+ mutex_lock(&imxmd->mutex);
- ret = add_ipu_internal_subdevs(imxmd, 0);
- if (ret)
- goto remove;
+ /* record this IPU */
+ if (!imxmd->ipu[ipu_id])
+ imxmd->ipu[ipu_id] = ipu;
- ret = add_ipu_internal_subdevs(imxmd, 1);
- if (ret)
- goto remove;
+ /* register the synchronous subdevs */
+ for (i = 0; i < NUM_IPU_SUBDEVS; i++) {
+ intsd = &int_subdev[i];
+ sd = imxmd->sync_sd[ipu_id][i];
+
+ /*
+ * skip if this sync subdev already registered or its
+ * not a sync subdev (one of the CSIs)
+ */
+ if (sd || !intsd->sync_register)
+ continue;
+
+ mutex_unlock(&imxmd->mutex);
+ sd = intsd->sync_register(&imxmd->v4l2_dev, ipu_dev, ipu,
+ intsd->grp_id);
+ mutex_lock(&imxmd->mutex);
+ if (IS_ERR(sd)) {
+ ret = PTR_ERR(sd);
+ goto err_unwind;
+ }
+
+ imxmd->sync_sd[ipu_id][i] = sd;
+ }
+
+ /*
+ * all the sync subdevs are registered, create the media links
+ * between them.
+ */
+ for (i = 0; i < NUM_IPU_SUBDEVS; i++) {
+ intsd = &int_subdev[i];
+
+ if (intsd->grp_id == csi->grp_id) {
+ sd = csi;
+ } else {
+ sd = imxmd->sync_sd[ipu_id][i];
+ if (!sd)
+ continue;
+ }
+
+ ret = create_ipu_internal_links(imxmd, intsd, sd, ipu_id);
+ if (ret) {
+ mutex_unlock(&imxmd->mutex);
+ imx_media_unregister_ipu_internal_subdevs(imxmd);
+ return ret;
+ }
+ }
+
+ mutex_unlock(&imxmd->mutex);
return 0;
-remove:
- imx_media_remove_internal_subdevs(imxmd);
+err_unwind:
+ while (--i >= 0) {
+ intsd = &int_subdev[i];
+ sd = imxmd->sync_sd[ipu_id][i];
+ if (!sd || !intsd->sync_unregister)
+ continue;
+ mutex_unlock(&imxmd->mutex);
+ intsd->sync_unregister(sd);
+ mutex_lock(&imxmd->mutex);
+ }
+
+ mutex_unlock(&imxmd->mutex);
return ret;
}
-void imx_media_remove_internal_subdevs(struct imx_media_dev *imxmd)
+void imx_media_unregister_ipu_internal_subdevs(struct imx_media_dev *imxmd)
{
- struct imx_media_async_subdev *imxasd;
+ const struct internal_subdev *intsd;
+ struct v4l2_subdev *sd;
+ int i, j;
- list_for_each_entry(imxasd, &imxmd->asd_list, list) {
- if (!imxasd->pdev)
- continue;
+ mutex_lock(&imxmd->mutex);
- platform_device_unregister(imxasd->pdev);
+ for (i = 0; i < 2; i++) {
+ for (j = 0; j < NUM_IPU_SUBDEVS; j++) {
+ intsd = &int_subdev[j];
+ sd = imxmd->sync_sd[i][j];
+
+ if (!sd || !intsd->sync_unregister)
+ continue;
+
+ mutex_unlock(&imxmd->mutex);
+ intsd->sync_unregister(sd);
+ mutex_lock(&imxmd->mutex);
+ }
}
+
+ mutex_unlock(&imxmd->mutex);
}
--
Gitblit v1.6.2