summaryrefslogtreecommitdiff
path: root/drivers/media/platform/omap3isp/isph3a_aewb.c
diff options
context:
space:
mode:
authorMauro Carvalho Chehab <mchehab@kernel.org>2022-03-13 11:18:20 +0100
committerMauro Carvalho Chehab <mchehab@kernel.org>2022-03-18 05:58:34 +0100
commitceafdaac46ea2c623a64eabaed64abd2fe7cb76f (patch)
treec255efc7915e7b7696bbbf17c309b9e1b24828ea /drivers/media/platform/omap3isp/isph3a_aewb.c
parentd24a170bde6543fa2879d3c422b7874716cdf038 (diff)
media: platform: rename omap3isp/ to ti/omap3isp/
As the end goal is to have platform drivers split by vendor, rename omap3isp/ to ti/omap3isp/. Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>
Diffstat (limited to 'drivers/media/platform/omap3isp/isph3a_aewb.c')
-rw-r--r--drivers/media/platform/omap3isp/isph3a_aewb.c350
1 files changed, 0 insertions, 350 deletions
diff --git a/drivers/media/platform/omap3isp/isph3a_aewb.c b/drivers/media/platform/omap3isp/isph3a_aewb.c
deleted file mode 100644
index e6c54c4bbfca..000000000000
--- a/drivers/media/platform/omap3isp/isph3a_aewb.c
+++ /dev/null
@@ -1,350 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0-only
-/*
- * isph3a.c
- *
- * TI OMAP3 ISP - H3A module
- *
- * Copyright (C) 2010 Nokia Corporation
- * Copyright (C) 2009 Texas Instruments, Inc.
- *
- * Contacts: David Cohen <dacohen@gmail.com>
- * Laurent Pinchart <laurent.pinchart@ideasonboard.com>
- * Sakari Ailus <sakari.ailus@iki.fi>
- */
-
-#include <linux/slab.h>
-#include <linux/uaccess.h>
-
-#include "isp.h"
-#include "isph3a.h"
-#include "ispstat.h"
-
-/*
- * h3a_aewb_update_regs - Helper function to update h3a registers.
- */
-static void h3a_aewb_setup_regs(struct ispstat *aewb, void *priv)
-{
- struct omap3isp_h3a_aewb_config *conf = priv;
- u32 pcr;
- u32 win1;
- u32 start;
- u32 blk;
- u32 subwin;
-
- if (aewb->state == ISPSTAT_DISABLED)
- return;
-
- isp_reg_writel(aewb->isp, aewb->active_buf->dma_addr,
- OMAP3_ISP_IOMEM_H3A, ISPH3A_AEWBUFST);
-
- if (!aewb->update)
- return;
-
- /* Converting config metadata into reg values */
- pcr = conf->saturation_limit << ISPH3A_PCR_AEW_AVE2LMT_SHIFT;
- pcr |= !!conf->alaw_enable << ISPH3A_PCR_AEW_ALAW_EN_SHIFT;
-
- win1 = ((conf->win_height >> 1) - 1) << ISPH3A_AEWWIN1_WINH_SHIFT;
- win1 |= ((conf->win_width >> 1) - 1) << ISPH3A_AEWWIN1_WINW_SHIFT;
- win1 |= (conf->ver_win_count - 1) << ISPH3A_AEWWIN1_WINVC_SHIFT;
- win1 |= (conf->hor_win_count - 1) << ISPH3A_AEWWIN1_WINHC_SHIFT;
-
- start = conf->hor_win_start << ISPH3A_AEWINSTART_WINSH_SHIFT;
- start |= conf->ver_win_start << ISPH3A_AEWINSTART_WINSV_SHIFT;
-
- blk = conf->blk_ver_win_start << ISPH3A_AEWINBLK_WINSV_SHIFT;
- blk |= ((conf->blk_win_height >> 1) - 1) << ISPH3A_AEWINBLK_WINH_SHIFT;
-
- subwin = ((conf->subsample_ver_inc >> 1) - 1) <<
- ISPH3A_AEWSUBWIN_AEWINCV_SHIFT;
- subwin |= ((conf->subsample_hor_inc >> 1) - 1) <<
- ISPH3A_AEWSUBWIN_AEWINCH_SHIFT;
-
- isp_reg_writel(aewb->isp, win1, OMAP3_ISP_IOMEM_H3A, ISPH3A_AEWWIN1);
- isp_reg_writel(aewb->isp, start, OMAP3_ISP_IOMEM_H3A,
- ISPH3A_AEWINSTART);
- isp_reg_writel(aewb->isp, blk, OMAP3_ISP_IOMEM_H3A, ISPH3A_AEWINBLK);
- isp_reg_writel(aewb->isp, subwin, OMAP3_ISP_IOMEM_H3A,
- ISPH3A_AEWSUBWIN);
- isp_reg_clr_set(aewb->isp, OMAP3_ISP_IOMEM_H3A, ISPH3A_PCR,
- ISPH3A_PCR_AEW_MASK, pcr);
-
- aewb->update = 0;
- aewb->config_counter += aewb->inc_config;
- aewb->inc_config = 0;
- aewb->buf_size = conf->buf_size;
-}
-
-static void h3a_aewb_enable(struct ispstat *aewb, int enable)
-{
- if (enable) {
- isp_reg_set(aewb->isp, OMAP3_ISP_IOMEM_H3A, ISPH3A_PCR,
- ISPH3A_PCR_AEW_EN);
- omap3isp_subclk_enable(aewb->isp, OMAP3_ISP_SUBCLK_AEWB);
- } else {
- isp_reg_clr(aewb->isp, OMAP3_ISP_IOMEM_H3A, ISPH3A_PCR,
- ISPH3A_PCR_AEW_EN);
- omap3isp_subclk_disable(aewb->isp, OMAP3_ISP_SUBCLK_AEWB);
- }
-}
-
-static int h3a_aewb_busy(struct ispstat *aewb)
-{
- return isp_reg_readl(aewb->isp, OMAP3_ISP_IOMEM_H3A, ISPH3A_PCR)
- & ISPH3A_PCR_BUSYAEAWB;
-}
-
-static u32 h3a_aewb_get_buf_size(struct omap3isp_h3a_aewb_config *conf)
-{
- /* Number of configured windows + extra row for black data */
- u32 win_count = (conf->ver_win_count + 1) * conf->hor_win_count;
-
- /*
- * Unsaturated block counts for each 8 windows.
- * 1 extra for the last (win_count % 8) windows if win_count is not
- * divisible by 8.
- */
- win_count += (win_count + 7) / 8;
-
- return win_count * AEWB_PACKET_SIZE;
-}
-
-static int h3a_aewb_validate_params(struct ispstat *aewb, void *new_conf)
-{
- struct omap3isp_h3a_aewb_config *user_cfg = new_conf;
- u32 buf_size;
-
- if (unlikely(user_cfg->saturation_limit >
- OMAP3ISP_AEWB_MAX_SATURATION_LIM))
- return -EINVAL;
-
- if (unlikely(user_cfg->win_height < OMAP3ISP_AEWB_MIN_WIN_H ||
- user_cfg->win_height > OMAP3ISP_AEWB_MAX_WIN_H ||
- user_cfg->win_height & 0x01))
- return -EINVAL;
-
- if (unlikely(user_cfg->win_width < OMAP3ISP_AEWB_MIN_WIN_W ||
- user_cfg->win_width > OMAP3ISP_AEWB_MAX_WIN_W ||
- user_cfg->win_width & 0x01))
- return -EINVAL;
-
- if (unlikely(user_cfg->ver_win_count < OMAP3ISP_AEWB_MIN_WINVC ||
- user_cfg->ver_win_count > OMAP3ISP_AEWB_MAX_WINVC))
- return -EINVAL;
-
- if (unlikely(user_cfg->hor_win_count < OMAP3ISP_AEWB_MIN_WINHC ||
- user_cfg->hor_win_count > OMAP3ISP_AEWB_MAX_WINHC))
- return -EINVAL;
-
- if (unlikely(user_cfg->ver_win_start > OMAP3ISP_AEWB_MAX_WINSTART))
- return -EINVAL;
-
- if (unlikely(user_cfg->hor_win_start > OMAP3ISP_AEWB_MAX_WINSTART))
- return -EINVAL;
-
- if (unlikely(user_cfg->blk_ver_win_start > OMAP3ISP_AEWB_MAX_WINSTART))
- return -EINVAL;
-
- if (unlikely(user_cfg->blk_win_height < OMAP3ISP_AEWB_MIN_WIN_H ||
- user_cfg->blk_win_height > OMAP3ISP_AEWB_MAX_WIN_H ||
- user_cfg->blk_win_height & 0x01))
- return -EINVAL;
-
- if (unlikely(user_cfg->subsample_ver_inc < OMAP3ISP_AEWB_MIN_SUB_INC ||
- user_cfg->subsample_ver_inc > OMAP3ISP_AEWB_MAX_SUB_INC ||
- user_cfg->subsample_ver_inc & 0x01))
- return -EINVAL;
-
- if (unlikely(user_cfg->subsample_hor_inc < OMAP3ISP_AEWB_MIN_SUB_INC ||
- user_cfg->subsample_hor_inc > OMAP3ISP_AEWB_MAX_SUB_INC ||
- user_cfg->subsample_hor_inc & 0x01))
- return -EINVAL;
-
- buf_size = h3a_aewb_get_buf_size(user_cfg);
- if (buf_size > user_cfg->buf_size)
- user_cfg->buf_size = buf_size;
- else if (user_cfg->buf_size > OMAP3ISP_AEWB_MAX_BUF_SIZE)
- user_cfg->buf_size = OMAP3ISP_AEWB_MAX_BUF_SIZE;
-
- return 0;
-}
-
-/*
- * h3a_aewb_set_params - Helper function to check & store user given params.
- * @new_conf: Pointer to AE and AWB parameters struct.
- *
- * As most of them are busy-lock registers, need to wait until AEW_BUSY = 0 to
- * program them during ISR.
- */
-static void h3a_aewb_set_params(struct ispstat *aewb, void *new_conf)
-{
- struct omap3isp_h3a_aewb_config *user_cfg = new_conf;
- struct omap3isp_h3a_aewb_config *cur_cfg = aewb->priv;
- int update = 0;
-
- if (cur_cfg->saturation_limit != user_cfg->saturation_limit) {
- cur_cfg->saturation_limit = user_cfg->saturation_limit;
- update = 1;
- }
- if (cur_cfg->alaw_enable != user_cfg->alaw_enable) {
- cur_cfg->alaw_enable = user_cfg->alaw_enable;
- update = 1;
- }
- if (cur_cfg->win_height != user_cfg->win_height) {
- cur_cfg->win_height = user_cfg->win_height;
- update = 1;
- }
- if (cur_cfg->win_width != user_cfg->win_width) {
- cur_cfg->win_width = user_cfg->win_width;
- update = 1;
- }
- if (cur_cfg->ver_win_count != user_cfg->ver_win_count) {
- cur_cfg->ver_win_count = user_cfg->ver_win_count;
- update = 1;
- }
- if (cur_cfg->hor_win_count != user_cfg->hor_win_count) {
- cur_cfg->hor_win_count = user_cfg->hor_win_count;
- update = 1;
- }
- if (cur_cfg->ver_win_start != user_cfg->ver_win_start) {
- cur_cfg->ver_win_start = user_cfg->ver_win_start;
- update = 1;
- }
- if (cur_cfg->hor_win_start != user_cfg->hor_win_start) {
- cur_cfg->hor_win_start = user_cfg->hor_win_start;
- update = 1;
- }
- if (cur_cfg->blk_ver_win_start != user_cfg->blk_ver_win_start) {
- cur_cfg->blk_ver_win_start = user_cfg->blk_ver_win_start;
- update = 1;
- }
- if (cur_cfg->blk_win_height != user_cfg->blk_win_height) {
- cur_cfg->blk_win_height = user_cfg->blk_win_height;
- update = 1;
- }
- if (cur_cfg->subsample_ver_inc != user_cfg->subsample_ver_inc) {
- cur_cfg->subsample_ver_inc = user_cfg->subsample_ver_inc;
- update = 1;
- }
- if (cur_cfg->subsample_hor_inc != user_cfg->subsample_hor_inc) {
- cur_cfg->subsample_hor_inc = user_cfg->subsample_hor_inc;
- update = 1;
- }
-
- if (update || !aewb->configured) {
- aewb->inc_config++;
- aewb->update = 1;
- cur_cfg->buf_size = h3a_aewb_get_buf_size(cur_cfg);
- }
-}
-
-static long h3a_aewb_ioctl(struct v4l2_subdev *sd, unsigned int cmd, void *arg)
-{
- struct ispstat *stat = v4l2_get_subdevdata(sd);
-
- switch (cmd) {
- case VIDIOC_OMAP3ISP_AEWB_CFG:
- return omap3isp_stat_config(stat, arg);
- case VIDIOC_OMAP3ISP_STAT_REQ:
- return omap3isp_stat_request_statistics(stat, arg);
- case VIDIOC_OMAP3ISP_STAT_REQ_TIME32:
- return omap3isp_stat_request_statistics_time32(stat, arg);
- case VIDIOC_OMAP3ISP_STAT_EN: {
- unsigned long *en = arg;
- return omap3isp_stat_enable(stat, !!*en);
- }
- }
-
- return -ENOIOCTLCMD;
-}
-
-static const struct ispstat_ops h3a_aewb_ops = {
- .validate_params = h3a_aewb_validate_params,
- .set_params = h3a_aewb_set_params,
- .setup_regs = h3a_aewb_setup_regs,
- .enable = h3a_aewb_enable,
- .busy = h3a_aewb_busy,
-};
-
-static const struct v4l2_subdev_core_ops h3a_aewb_subdev_core_ops = {
- .ioctl = h3a_aewb_ioctl,
- .subscribe_event = omap3isp_stat_subscribe_event,
- .unsubscribe_event = omap3isp_stat_unsubscribe_event,
-};
-
-static const struct v4l2_subdev_video_ops h3a_aewb_subdev_video_ops = {
- .s_stream = omap3isp_stat_s_stream,
-};
-
-static const struct v4l2_subdev_ops h3a_aewb_subdev_ops = {
- .core = &h3a_aewb_subdev_core_ops,
- .video = &h3a_aewb_subdev_video_ops,
-};
-
-/*
- * omap3isp_h3a_aewb_init - Module Initialisation.
- */
-int omap3isp_h3a_aewb_init(struct isp_device *isp)
-{
- struct ispstat *aewb = &isp->isp_aewb;
- struct omap3isp_h3a_aewb_config *aewb_cfg;
- struct omap3isp_h3a_aewb_config *aewb_recover_cfg = NULL;
- int ret;
-
- aewb_cfg = kzalloc(sizeof(*aewb_cfg), GFP_KERNEL);
- if (!aewb_cfg)
- return -ENOMEM;
-
- aewb->ops = &h3a_aewb_ops;
- aewb->priv = aewb_cfg;
- aewb->event_type = V4L2_EVENT_OMAP3ISP_AEWB;
- aewb->isp = isp;
-
- /* Set recover state configuration */
- aewb_recover_cfg = kzalloc(sizeof(*aewb_recover_cfg), GFP_KERNEL);
- if (!aewb_recover_cfg) {
- dev_err(aewb->isp->dev,
- "AEWB: cannot allocate memory for recover configuration.\n");
- ret = -ENOMEM;
- goto err;
- }
-
- aewb_recover_cfg->saturation_limit = OMAP3ISP_AEWB_MAX_SATURATION_LIM;
- aewb_recover_cfg->win_height = OMAP3ISP_AEWB_MIN_WIN_H;
- aewb_recover_cfg->win_width = OMAP3ISP_AEWB_MIN_WIN_W;
- aewb_recover_cfg->ver_win_count = OMAP3ISP_AEWB_MIN_WINVC;
- aewb_recover_cfg->hor_win_count = OMAP3ISP_AEWB_MIN_WINHC;
- aewb_recover_cfg->blk_ver_win_start = aewb_recover_cfg->ver_win_start +
- aewb_recover_cfg->win_height * aewb_recover_cfg->ver_win_count;
- aewb_recover_cfg->blk_win_height = OMAP3ISP_AEWB_MIN_WIN_H;
- aewb_recover_cfg->subsample_ver_inc = OMAP3ISP_AEWB_MIN_SUB_INC;
- aewb_recover_cfg->subsample_hor_inc = OMAP3ISP_AEWB_MIN_SUB_INC;
-
- if (h3a_aewb_validate_params(aewb, aewb_recover_cfg)) {
- dev_err(aewb->isp->dev,
- "AEWB: recover configuration is invalid.\n");
- ret = -EINVAL;
- goto err;
- }
-
- aewb_recover_cfg->buf_size = h3a_aewb_get_buf_size(aewb_recover_cfg);
- aewb->recover_priv = aewb_recover_cfg;
-
- ret = omap3isp_stat_init(aewb, "AEWB", &h3a_aewb_subdev_ops);
-
-err:
- if (ret) {
- kfree(aewb_cfg);
- kfree(aewb_recover_cfg);
- }
-
- return ret;
-}
-
-/*
- * omap3isp_h3a_aewb_cleanup - Module exit.
- */
-void omap3isp_h3a_aewb_cleanup(struct isp_device *isp)
-{
- omap3isp_stat_cleanup(&isp->isp_aewb);
-}