diff options
Diffstat (limited to 'arch/arm/plat-omap/include/plat/ipu_dev.h')
| -rw-r--r-- | arch/arm/plat-omap/include/plat/ipu_dev.h | 107 |
1 files changed, 107 insertions, 0 deletions
diff --git a/arch/arm/plat-omap/include/plat/ipu_dev.h b/arch/arm/plat-omap/include/plat/ipu_dev.h new file mode 100644 index 00000000000..c7b7959c38b --- /dev/null +++ b/arch/arm/plat-omap/include/plat/ipu_dev.h @@ -0,0 +1,107 @@ +/* + * OMAP IPU_PM driver + * + * Copyright (C) 2010 Texas Instruments Inc. + * + * Written by Paul Hunt <hunt@ti.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 IPU_PM_H +#define IPU_PM_H + +#include <linux/ioctl.h> +#include <linux/cdev.h> + +#include "../../../drivers/dsp/syslink/ipu_pm/ipu_pm.h" + +#define IPU_PM_IOC_MAGIC (0xDB) + +/* magic char is irrelevant until trying to upstream + * except for reducing exposure to misdirected ioctls + * see Documentation/ioctl/ioctl-number.txt + */ +#define IPU_PM_IOC_SUSPEND _IOW(IPU_PM_IOC_MAGIC, 0, int) +#define IPU_PM_IOC_RESUME _IOW(IPU_PM_IOC_MAGIC, 1, int) + +#define IPU_PM_IOC_MAXNR 3 + +#define IPUPM_CAPS_START_BIT 0 +#define IPUPM_CAPS_STOP_BIT 1 +#define IPUPM_CAPS_PERF_BIT 2 +#define IPUPM_CAPS_LAT_BIT 3 +#define IPUPM_CAPS_BDW_BIT 4 +/* omap_device built elsewhere */ +#define IPUPM_CAPS_EXTINIT_BIT 5 +#define IPUPM_CAPS_START (1 << IPUPM_CAPS_START_BIT) +#define IPUPM_CAPS_STOP (1 << IPUPM_CAPS_STOP_BIT) +#define IPUPM_CAPS_PERF (1 << IPUPM_CAPS_PERF_BIT) +#define IPUPM_CAPS_LAT (1 << IPUPM_CAPS_LAT_BIT) +#define IPUPM_CAPS_BDW (1 << IPUPM_CAPS_BDW_BIT) +#define IPUPM_CAPS_EXTINIT (1 << IPUPM_CAPS_EXTINIT_BIT) + +#define IPU_PM_SELF 100 +#define IPU_PM_MPU 101 +#define IPU_PM_CORE 102 + +struct omap_ipupm_mod; + +struct omap_ipupm_mod_ops { + int (*start)(enum res_type ipupm_modnum); + int (*stop)(enum res_type ipupm_modnum); +}; + +struct omap_ipupm_mod_platform_data { + struct platform_device *pdev; + struct device *dev; + char *name; + char *oh_name; + struct omap_hwmod *oh; + struct kobject kobj; + u32 caps; + struct pm_qos_request_list *qos_request; + struct omap_ipupm_mod_ops *ops; +}; + +struct omap_ipupm_mod { + struct device *dev; + struct cdev cdev; + atomic_t count; + int state; + int minor; +}; + +struct ipu_pm_dev { + /* FIXME: maybe more is needed */ + struct cdev cdev; +}; + +extern int ipu_pm_first_dev; + +extern int ipu_pm_module_start(unsigned rsrc); +extern int ipu_pm_module_stop(unsigned rsrc); +extern int ipu_pm_module_set_rate(unsigned rsrc, + unsigned target_rsrc, + unsigned rate); +extern int ipu_pm_module_set_latency(unsigned rsrc, + unsigned target_rsrc, + int latency); +extern int ipu_pm_module_set_bandwidth(unsigned rsrc, + unsigned target_rsrc, + int bandwidth); + +#endif /* IPU_PM_H */ |