diff options
Diffstat (limited to 'drivers/media/video/omap3isp/isph3a_af.c')
-rw-r--r-- | drivers/media/video/omap3isp/isph3a_af.c | 429 |
1 files changed, 0 insertions, 429 deletions
diff --git a/drivers/media/video/omap3isp/isph3a_af.c b/drivers/media/video/omap3isp/isph3a_af.c deleted file mode 100644 index 58e0bc414899..000000000000 --- a/drivers/media/video/omap3isp/isph3a_af.c +++ /dev/null @@ -1,429 +0,0 @@ -/* - * isph3a_af.c - * - * TI OMAP3 ISP - H3A AF 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> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - * - * This program is distributed in the hope that it will be useful, but - * WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA - * 02110-1301 USA - */ - -/* Linux specific include files */ -#include <linux/device.h> -#include <linux/slab.h> - -#include "isp.h" -#include "isph3a.h" -#include "ispstat.h" - -#define IS_OUT_OF_BOUNDS(value, min, max) \ - (((value) < (min)) || ((value) > (max))) - -static void h3a_af_setup_regs(struct ispstat *af, void *priv) -{ - struct omap3isp_h3a_af_config *conf = priv; - u32 pcr; - u32 pax1; - u32 pax2; - u32 paxstart; - u32 coef; - u32 base_coef_set0; - u32 base_coef_set1; - int index; - - if (af->state == ISPSTAT_DISABLED) - return; - - isp_reg_writel(af->isp, af->active_buf->iommu_addr, OMAP3_ISP_IOMEM_H3A, - ISPH3A_AFBUFST); - - if (!af->update) - return; - - /* Configure Hardware Registers */ - pax1 = ((conf->paxel.width >> 1) - 1) << AF_PAXW_SHIFT; - /* Set height in AFPAX1 */ - pax1 |= (conf->paxel.height >> 1) - 1; - isp_reg_writel(af->isp, pax1, OMAP3_ISP_IOMEM_H3A, ISPH3A_AFPAX1); - - /* Configure AFPAX2 Register */ - /* Set Line Increment in AFPAX2 Register */ - pax2 = ((conf->paxel.line_inc >> 1) - 1) << AF_LINE_INCR_SHIFT; - /* Set Vertical Count */ - pax2 |= (conf->paxel.v_cnt - 1) << AF_VT_COUNT_SHIFT; - /* Set Horizontal Count */ - pax2 |= (conf->paxel.h_cnt - 1); - isp_reg_writel(af->isp, pax2, OMAP3_ISP_IOMEM_H3A, ISPH3A_AFPAX2); - - /* Configure PAXSTART Register */ - /*Configure Horizontal Start */ - paxstart = conf->paxel.h_start << AF_HZ_START_SHIFT; - /* Configure Vertical Start */ - paxstart |= conf->paxel.v_start; - isp_reg_writel(af->isp, paxstart, OMAP3_ISP_IOMEM_H3A, - ISPH3A_AFPAXSTART); - - /*SetIIRSH Register */ - isp_reg_writel(af->isp, conf->iir.h_start, - OMAP3_ISP_IOMEM_H3A, ISPH3A_AFIIRSH); - - base_coef_set0 = ISPH3A_AFCOEF010; - base_coef_set1 = ISPH3A_AFCOEF110; - for (index = 0; index <= 8; index += 2) { - /*Set IIR Filter0 Coefficients */ - coef = 0; - coef |= conf->iir.coeff_set0[index]; - coef |= conf->iir.coeff_set0[index + 1] << - AF_COEF_SHIFT; - isp_reg_writel(af->isp, coef, OMAP3_ISP_IOMEM_H3A, - base_coef_set0); - base_coef_set0 += AFCOEF_OFFSET; - - /*Set IIR Filter1 Coefficients */ - coef = 0; - coef |= conf->iir.coeff_set1[index]; - coef |= conf->iir.coeff_set1[index + 1] << - AF_COEF_SHIFT; - isp_reg_writel(af->isp, coef, OMAP3_ISP_IOMEM_H3A, - base_coef_set1); - base_coef_set1 += AFCOEF_OFFSET; - } - /* set AFCOEF0010 Register */ - isp_reg_writel(af->isp, conf->iir.coeff_set0[10], - OMAP3_ISP_IOMEM_H3A, ISPH3A_AFCOEF0010); - /* set AFCOEF1010 Register */ - isp_reg_writel(af->isp, conf->iir.coeff_set1[10], - OMAP3_ISP_IOMEM_H3A, ISPH3A_AFCOEF1010); - - /* PCR Register */ - /* Set RGB Position */ - pcr = conf->rgb_pos << AF_RGBPOS_SHIFT; - /* Set Accumulator Mode */ - if (conf->fvmode == OMAP3ISP_AF_MODE_PEAK) - pcr |= AF_FVMODE; - /* Set A-law */ - if (conf->alaw_enable) - pcr |= AF_ALAW_EN; - /* HMF Configurations */ - if (conf->hmf.enable) { - /* Enable HMF */ - pcr |= AF_MED_EN; - /* Set Median Threshold */ - pcr |= conf->hmf.threshold << AF_MED_TH_SHIFT; - } - /* Set PCR Register */ - isp_reg_clr_set(af->isp, OMAP3_ISP_IOMEM_H3A, ISPH3A_PCR, - AF_PCR_MASK, pcr); - - af->update = 0; - af->config_counter += af->inc_config; - af->inc_config = 0; - af->buf_size = conf->buf_size; -} - -static void h3a_af_enable(struct ispstat *af, int enable) -{ - if (enable) { - isp_reg_set(af->isp, OMAP3_ISP_IOMEM_H3A, ISPH3A_PCR, - ISPH3A_PCR_AF_EN); - /* This bit is already set if AEWB is enabled */ - if (af->isp->isp_aewb.state != ISPSTAT_ENABLED) - isp_reg_set(af->isp, OMAP3_ISP_IOMEM_MAIN, ISP_CTRL, - ISPCTRL_H3A_CLK_EN); - } else { - isp_reg_clr(af->isp, OMAP3_ISP_IOMEM_H3A, ISPH3A_PCR, - ISPH3A_PCR_AF_EN); - /* This bit can't be cleared if AEWB is enabled */ - if (af->isp->isp_aewb.state != ISPSTAT_ENABLED) - isp_reg_clr(af->isp, OMAP3_ISP_IOMEM_MAIN, ISP_CTRL, - ISPCTRL_H3A_CLK_EN); - } -} - -static int h3a_af_busy(struct ispstat *af) -{ - return isp_reg_readl(af->isp, OMAP3_ISP_IOMEM_H3A, ISPH3A_PCR) - & ISPH3A_PCR_BUSYAF; -} - -static u32 h3a_af_get_buf_size(struct omap3isp_h3a_af_config *conf) -{ - return conf->paxel.h_cnt * conf->paxel.v_cnt * OMAP3ISP_AF_PAXEL_SIZE; -} - -/* Function to check paxel parameters */ -static int h3a_af_validate_params(struct ispstat *af, void *new_conf) -{ - struct omap3isp_h3a_af_config *user_cfg = new_conf; - struct omap3isp_h3a_af_paxel *paxel_cfg = &user_cfg->paxel; - struct omap3isp_h3a_af_iir *iir_cfg = &user_cfg->iir; - int index; - u32 buf_size; - - /* Check horizontal Count */ - if (IS_OUT_OF_BOUNDS(paxel_cfg->h_cnt, - OMAP3ISP_AF_PAXEL_HORIZONTAL_COUNT_MIN, - OMAP3ISP_AF_PAXEL_HORIZONTAL_COUNT_MAX)) - return -EINVAL; - - /* Check Vertical Count */ - if (IS_OUT_OF_BOUNDS(paxel_cfg->v_cnt, - OMAP3ISP_AF_PAXEL_VERTICAL_COUNT_MIN, - OMAP3ISP_AF_PAXEL_VERTICAL_COUNT_MAX)) - return -EINVAL; - - if (IS_OUT_OF_BOUNDS(paxel_cfg->height, OMAP3ISP_AF_PAXEL_HEIGHT_MIN, - OMAP3ISP_AF_PAXEL_HEIGHT_MAX) || - paxel_cfg->height % 2) - return -EINVAL; - - /* Check width */ - if (IS_OUT_OF_BOUNDS(paxel_cfg->width, OMAP3ISP_AF_PAXEL_WIDTH_MIN, - OMAP3ISP_AF_PAXEL_WIDTH_MAX) || - paxel_cfg->width % 2) - return -EINVAL; - - /* Check Line Increment */ - if (IS_OUT_OF_BOUNDS(paxel_cfg->line_inc, - OMAP3ISP_AF_PAXEL_INCREMENT_MIN, - OMAP3ISP_AF_PAXEL_INCREMENT_MAX) || - paxel_cfg->line_inc % 2) - return -EINVAL; - - /* Check Horizontal Start */ - if ((paxel_cfg->h_start < iir_cfg->h_start) || - IS_OUT_OF_BOUNDS(paxel_cfg->h_start, - OMAP3ISP_AF_PAXEL_HZSTART_MIN, - OMAP3ISP_AF_PAXEL_HZSTART_MAX)) - return -EINVAL; - - /* Check IIR */ - for (index = 0; index < OMAP3ISP_AF_NUM_COEF; index++) { - if ((iir_cfg->coeff_set0[index]) > OMAP3ISP_AF_COEF_MAX) - return -EINVAL; - - if ((iir_cfg->coeff_set1[index]) > OMAP3ISP_AF_COEF_MAX) - return -EINVAL; - } - - if (IS_OUT_OF_BOUNDS(iir_cfg->h_start, OMAP3ISP_AF_IIRSH_MIN, - OMAP3ISP_AF_IIRSH_MAX)) - return -EINVAL; - - /* Hack: If paxel size is 12, the 10th AF window may be corrupted */ - if ((paxel_cfg->h_cnt * paxel_cfg->v_cnt > 9) && - (paxel_cfg->width * paxel_cfg->height == 12)) - return -EINVAL; - - buf_size = h3a_af_get_buf_size(user_cfg); - if (buf_size > user_cfg->buf_size) - /* User buf_size request wasn't enough */ - user_cfg->buf_size = buf_size; - else if (user_cfg->buf_size > OMAP3ISP_AF_MAX_BUF_SIZE) - user_cfg->buf_size = OMAP3ISP_AF_MAX_BUF_SIZE; - - return 0; -} - -/* Update local parameters */ -static void h3a_af_set_params(struct ispstat *af, void *new_conf) -{ - struct omap3isp_h3a_af_config *user_cfg = new_conf; - struct omap3isp_h3a_af_config *cur_cfg = af->priv; - int update = 0; - int index; - - /* alaw */ - if (cur_cfg->alaw_enable != user_cfg->alaw_enable) { - update = 1; - goto out; - } - - /* hmf */ - if (cur_cfg->hmf.enable != user_cfg->hmf.enable) { - update = 1; - goto out; - } - if (cur_cfg->hmf.threshold != user_cfg->hmf.threshold) { - update = 1; - goto out; - } - - /* rgbpos */ - if (cur_cfg->rgb_pos != user_cfg->rgb_pos) { - update = 1; - goto out; - } - - /* iir */ - if (cur_cfg->iir.h_start != user_cfg->iir.h_start) { - update = 1; - goto out; - } - for (index = 0; index < OMAP3ISP_AF_NUM_COEF; index++) { - if (cur_cfg->iir.coeff_set0[index] != - user_cfg->iir.coeff_set0[index]) { - update = 1; - goto out; - } - if (cur_cfg->iir.coeff_set1[index] != - user_cfg->iir.coeff_set1[index]) { - update = 1; - goto out; - } - } - - /* paxel */ - if ((cur_cfg->paxel.width != user_cfg->paxel.width) || - (cur_cfg->paxel.height != user_cfg->paxel.height) || - (cur_cfg->paxel.h_start != user_cfg->paxel.h_start) || - (cur_cfg->paxel.v_start != user_cfg->paxel.v_start) || - (cur_cfg->paxel.h_cnt != user_cfg->paxel.h_cnt) || - (cur_cfg->paxel.v_cnt != user_cfg->paxel.v_cnt) || - (cur_cfg->paxel.line_inc != user_cfg->paxel.line_inc)) { - update = 1; - goto out; - } - - /* af_mode */ - if (cur_cfg->fvmode != user_cfg->fvmode) - update = 1; - -out: - if (update || !af->configured) { - memcpy(cur_cfg, user_cfg, sizeof(*cur_cfg)); - af->inc_config++; - af->update = 1; - /* - * User might be asked for a bigger buffer than necessary for - * this configuration. In order to return the right amount of - * data during buffer request, let's calculate the size here - * instead of stick with user_cfg->buf_size. - */ - cur_cfg->buf_size = h3a_af_get_buf_size(cur_cfg); - } -} - -static long h3a_af_ioctl(struct v4l2_subdev *sd, unsigned int cmd, void *arg) -{ - struct ispstat *stat = v4l2_get_subdevdata(sd); - - switch (cmd) { - case VIDIOC_OMAP3ISP_AF_CFG: - return omap3isp_stat_config(stat, arg); - case VIDIOC_OMAP3ISP_STAT_REQ: - return omap3isp_stat_request_statistics(stat, arg); - case VIDIOC_OMAP3ISP_STAT_EN: { - int *en = arg; - return omap3isp_stat_enable(stat, !!*en); - } - } - - return -ENOIOCTLCMD; - -} - -static const struct ispstat_ops h3a_af_ops = { - .validate_params = h3a_af_validate_params, - .set_params = h3a_af_set_params, - .setup_regs = h3a_af_setup_regs, - .enable = h3a_af_enable, - .busy = h3a_af_busy, -}; - -static const struct v4l2_subdev_core_ops h3a_af_subdev_core_ops = { - .ioctl = h3a_af_ioctl, - .subscribe_event = omap3isp_stat_subscribe_event, - .unsubscribe_event = omap3isp_stat_unsubscribe_event, -}; - -static const struct v4l2_subdev_video_ops h3a_af_subdev_video_ops = { - .s_stream = omap3isp_stat_s_stream, -}; - -static const struct v4l2_subdev_ops h3a_af_subdev_ops = { - .core = &h3a_af_subdev_core_ops, - .video = &h3a_af_subdev_video_ops, -}; - -/* Function to register the AF character device driver. */ -int omap3isp_h3a_af_init(struct isp_device *isp) -{ - struct ispstat *af = &isp->isp_af; - struct omap3isp_h3a_af_config *af_cfg; - struct omap3isp_h3a_af_config *af_recover_cfg; - int ret; - - af_cfg = kzalloc(sizeof(*af_cfg), GFP_KERNEL); - if (af_cfg == NULL) - return -ENOMEM; - - memset(af, 0, sizeof(*af)); - af->ops = &h3a_af_ops; - af->priv = af_cfg; - af->dma_ch = -1; - af->event_type = V4L2_EVENT_OMAP3ISP_AF; - af->isp = isp; - - /* Set recover state configuration */ - af_recover_cfg = kzalloc(sizeof(*af_recover_cfg), GFP_KERNEL); - if (!af_recover_cfg) { - dev_err(af->isp->dev, "AF: cannot allocate memory for recover " - "configuration.\n"); - ret = -ENOMEM; - goto err_recover_alloc; - } - - af_recover_cfg->paxel.h_start = OMAP3ISP_AF_PAXEL_HZSTART_MIN; - af_recover_cfg->paxel.width = OMAP3ISP_AF_PAXEL_WIDTH_MIN; - af_recover_cfg->paxel.height = OMAP3ISP_AF_PAXEL_HEIGHT_MIN; - af_recover_cfg->paxel.h_cnt = OMAP3ISP_AF_PAXEL_HORIZONTAL_COUNT_MIN; - af_recover_cfg->paxel.v_cnt = OMAP3ISP_AF_PAXEL_VERTICAL_COUNT_MIN; - af_recover_cfg->paxel.line_inc = OMAP3ISP_AF_PAXEL_INCREMENT_MIN; - if (h3a_af_validate_params(af, af_recover_cfg)) { - dev_err(af->isp->dev, "AF: recover configuration is " - "invalid.\n"); - ret = -EINVAL; - goto err_conf; - } - - af_recover_cfg->buf_size = h3a_af_get_buf_size(af_recover_cfg); - af->recover_priv = af_recover_cfg; - - ret = omap3isp_stat_init(af, "AF", &h3a_af_subdev_ops); - if (ret) - goto err_conf; - - return 0; - -err_conf: - kfree(af_recover_cfg); -err_recover_alloc: - kfree(af_cfg); - - return ret; -} - -void omap3isp_h3a_af_cleanup(struct isp_device *isp) -{ - kfree(isp->isp_af.priv); - kfree(isp->isp_af.recover_priv); - omap3isp_stat_cleanup(&isp->isp_af); -} |