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| author | Laurent Pinchart <laurent.pinchart@ideasonboard.com> | 2012-02-25 13:24:50 -0300 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab@redhat.com> | 2012-03-19 18:53:39 -0300 |
| commit | 0b27c81ba32de6f5eb9df769d839bab399c4c6de (patch) | |
| tree | e5c567d22d5e395bdbee359ef327eb676cd5e9e2 /drivers/media/video/aptina-pll.h | |
| parent | c0f9976662fa569e3760187d51bc4cd7b8f00e1d (diff) | |
| download | blackbird-op-linux-0b27c81ba32de6f5eb9df769d839bab399c4c6de.tar.gz blackbird-op-linux-0b27c81ba32de6f5eb9df769d839bab399c4c6de.zip | |
[media] v4l: Aptina-style sensor PLL support
Add a generic helper function to compute PLL parameters for PLL found in
several Aptina sensors.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Acked-by: Sakari Ailus <sakari.ailus@iki.fi>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Diffstat (limited to 'drivers/media/video/aptina-pll.h')
| -rw-r--r-- | drivers/media/video/aptina-pll.h | 56 |
1 files changed, 56 insertions, 0 deletions
diff --git a/drivers/media/video/aptina-pll.h b/drivers/media/video/aptina-pll.h new file mode 100644 index 000000000000..b370e341e75d --- /dev/null +++ b/drivers/media/video/aptina-pll.h @@ -0,0 +1,56 @@ +/* + * Aptina Sensor PLL Configuration + * + * Copyright (C) 2012 Laurent Pinchart <laurent.pinchart@ideasonboard.com> + * + * 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 + */ + +#ifndef __APTINA_PLL_H +#define __APTINA_PLL_H + +struct aptina_pll { + unsigned int ext_clock; + unsigned int pix_clock; + + unsigned int n; + unsigned int m; + unsigned int p1; +}; + +struct aptina_pll_limits { + unsigned int ext_clock_min; + unsigned int ext_clock_max; + unsigned int int_clock_min; + unsigned int int_clock_max; + unsigned int out_clock_min; + unsigned int out_clock_max; + unsigned int pix_clock_max; + + unsigned int n_min; + unsigned int n_max; + unsigned int m_min; + unsigned int m_max; + unsigned int p1_min; + unsigned int p1_max; +}; + +struct device; + +int aptina_pll_calculate(struct device *dev, + const struct aptina_pll_limits *limits, + struct aptina_pll *pll); + +#endif /* __APTINA_PLL_H */ |
