diff options
Diffstat (limited to 'drivers/staging/media/atomisp/pci/hrt')
3 files changed, 287 insertions, 0 deletions
diff --git a/drivers/staging/media/atomisp/pci/hrt/hive_isp_css_custom_host_hrt.h b/drivers/staging/media/atomisp/pci/hrt/hive_isp_css_custom_host_hrt.h new file mode 100644 index 000000000000..c6893d712d61 --- /dev/null +++ b/drivers/staging/media/atomisp/pci/hrt/hive_isp_css_custom_host_hrt.h @@ -0,0 +1,106 @@ +/* + * Support for Medifield PNW Camera Imaging ISP subsystem. + * + * Copyright (c) 2010 Intel Corporation. All Rights Reserved. + * + * Copyright (c) 2010 Silicon Hive www.siliconhive.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. + * + * + */ +#ifndef _hive_isp_css_custom_host_hrt_h_ +#define _hive_isp_css_custom_host_hrt_h_ + +#include <linux/delay.h> +#include "atomisp_helper.h" + +/* + * _hrt_master_port_store/load/uload -macros using __force attributed + * cast to intentional dereferencing __iomem attributed (noderef) + * pointer from atomisp_get_io_virt_addr + */ +#define _hrt_master_port_store_8(a, d) \ + (*((s8 __force *)atomisp_get_io_virt_addr(a)) = (d)) + +#define _hrt_master_port_store_16(a, d) \ + (*((s16 __force *)atomisp_get_io_virt_addr(a)) = (d)) + +#define _hrt_master_port_store_32(a, d) \ + (*((s32 __force *)atomisp_get_io_virt_addr(a)) = (d)) + +#define _hrt_master_port_load_8(a) \ + (*(s8 __force *)atomisp_get_io_virt_addr(a)) + +#define _hrt_master_port_load_16(a) \ + (*(s16 __force *)atomisp_get_io_virt_addr(a)) + +#define _hrt_master_port_load_32(a) \ + (*(s32 __force *)atomisp_get_io_virt_addr(a)) + +#define _hrt_master_port_uload_8(a) \ + (*(u8 __force *)atomisp_get_io_virt_addr(a)) + +#define _hrt_master_port_uload_16(a) \ + (*(u16 __force *)atomisp_get_io_virt_addr(a)) + +#define _hrt_master_port_uload_32(a) \ + (*(u32 __force *)atomisp_get_io_virt_addr(a)) + +#define _hrt_master_port_store_8_volatile(a, d) _hrt_master_port_store_8(a, d) +#define _hrt_master_port_store_16_volatile(a, d) _hrt_master_port_store_16(a, d) +#define _hrt_master_port_store_32_volatile(a, d) _hrt_master_port_store_32(a, d) + +#define _hrt_master_port_load_8_volatile(a) _hrt_master_port_load_8(a) +#define _hrt_master_port_load_16_volatile(a) _hrt_master_port_load_16(a) +#define _hrt_master_port_load_32_volatile(a) _hrt_master_port_load_32(a) + +#define _hrt_master_port_uload_8_volatile(a) _hrt_master_port_uload_8(a) +#define _hrt_master_port_uload_16_volatile(a) _hrt_master_port_uload_16(a) +#define _hrt_master_port_uload_32_volatile(a) _hrt_master_port_uload_32(a) + +static inline void hrt_sleep(void) +{ + udelay(1); +} + +static inline u32 _hrt_mem_store(u32 to, const void *from, size_t n) +{ + unsigned int i; + u32 _to = to; + const char *_from = (const char *)from; + + for (i = 0; i < n; i++, _to++, _from++) + _hrt_master_port_store_8(_to, *_from); + return _to; +} + +static inline void *_hrt_mem_load(u32 from, void *to, size_t n) +{ + unsigned int i; + char *_to = (char *)to; + u32 _from = from; + + for (i = 0; i < n; i++, _to++, _from++) + *_to = _hrt_master_port_load_8(_from); + return _to; +} + +static inline u32 _hrt_mem_set(u32 to, int c, size_t n) +{ + unsigned int i; + u32 _to = to; + + for (i = 0; i < n; i++, _to++) + _hrt_master_port_store_8(_to, c); + return _to; +} + +#endif /* _hive_isp_css_custom_host_hrt_h_ */ diff --git a/drivers/staging/media/atomisp/pci/hrt/hive_isp_css_mm_hrt.c b/drivers/staging/media/atomisp/pci/hrt/hive_isp_css_mm_hrt.c new file mode 100644 index 000000000000..236f27b50386 --- /dev/null +++ b/drivers/staging/media/atomisp/pci/hrt/hive_isp_css_mm_hrt.c @@ -0,0 +1,124 @@ +/* + * Support for Medifield PNW Camera Imaging ISP subsystem. + * + * Copyright (c) 2010 Intel Corporation. All Rights Reserved. + * + * Copyright (c) 2010 Silicon Hive www.siliconhive.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. + * + * + */ + +#include "atomisp_internal.h" + +#include "hive_isp_css_mm_hrt.h" +#include "hmm/hmm.h" + +#define __page_align(size) (((size) + (PAGE_SIZE - 1)) & (~(PAGE_SIZE - 1))) + +static void __user *my_userptr; +static unsigned int my_num_pages; +static enum hrt_userptr_type my_usr_type; + +void hrt_isp_css_mm_set_user_ptr(void __user *userptr, + unsigned int num_pages, + enum hrt_userptr_type type) +{ + my_userptr = userptr; + my_num_pages = num_pages; + my_usr_type = type; +} + +static ia_css_ptr __hrt_isp_css_mm_alloc(size_t bytes, + const void __user *userptr, + unsigned int num_pages, + enum hrt_userptr_type type, + bool cached) +{ +#ifdef CONFIG_ION + if (type == HRT_USR_ION) + return hmm_alloc(bytes, HMM_BO_ION, 0, + userptr, cached); + +#endif + if (type == HRT_USR_PTR) { + if (!userptr) + return hmm_alloc(bytes, HMM_BO_PRIVATE, 0, + NULL, cached); + else { + if (num_pages < ((__page_align(bytes)) >> PAGE_SHIFT)) + dev_err(atomisp_dev, + "user space memory size is less than the expected size..\n"); + else if (num_pages > ((__page_align(bytes)) + >> PAGE_SHIFT)) + dev_err(atomisp_dev, + "user space memory size is large than the expected size..\n"); + + return hmm_alloc(bytes, HMM_BO_USER, 0, + userptr, cached); + } + } else { + dev_err(atomisp_dev, "user ptr type is incorrect.\n"); + return 0; + } +} + +ia_css_ptr hrt_isp_css_mm_alloc(size_t bytes) +{ + return __hrt_isp_css_mm_alloc(bytes, my_userptr, + my_num_pages, my_usr_type, false); +} + +ia_css_ptr hrt_isp_css_mm_alloc_user_ptr(size_t bytes, + const void __user *userptr, + unsigned int num_pages, + enum hrt_userptr_type type, + bool cached) +{ + return __hrt_isp_css_mm_alloc(bytes, userptr, num_pages, + type, cached); +} + +ia_css_ptr hrt_isp_css_mm_alloc_cached(size_t bytes) +{ + if (!my_userptr) + return hmm_alloc(bytes, HMM_BO_PRIVATE, 0, NULL, + HMM_CACHED); + else { + if (my_num_pages < ((__page_align(bytes)) >> PAGE_SHIFT)) + dev_err(atomisp_dev, + "user space memory size is less than the expected size..\n"); + else if (my_num_pages > ((__page_align(bytes)) >> PAGE_SHIFT)) + dev_err(atomisp_dev, + "user space memory size is large than the expected size..\n"); + + return hmm_alloc(bytes, HMM_BO_USER, 0, + my_userptr, HMM_CACHED); + } +} + +ia_css_ptr hrt_isp_css_mm_calloc(size_t bytes) +{ + ia_css_ptr ptr = hrt_isp_css_mm_alloc(bytes); + + if (ptr) + hmm_set(ptr, 0, bytes); + return ptr; +} + +ia_css_ptr hrt_isp_css_mm_calloc_cached(size_t bytes) +{ + ia_css_ptr ptr = hrt_isp_css_mm_alloc_cached(bytes); + + if (ptr) + hmm_set(ptr, 0, bytes); + return ptr; +} diff --git a/drivers/staging/media/atomisp/pci/hrt/hive_isp_css_mm_hrt.h b/drivers/staging/media/atomisp/pci/hrt/hive_isp_css_mm_hrt.h new file mode 100644 index 000000000000..818ecf90b1f5 --- /dev/null +++ b/drivers/staging/media/atomisp/pci/hrt/hive_isp_css_mm_hrt.h @@ -0,0 +1,57 @@ +/* + * Support for Medfield PNW Camera Imaging ISP subsystem. + * + * Copyright (c) 2010 Intel Corporation. All Rights Reserved. + * + * Copyright (c) 2010 Silicon Hive www.siliconhive.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. + * + * + */ + +#ifndef _hive_isp_css_mm_hrt_h_ +#define _hive_isp_css_mm_hrt_h_ + +#include <hmm/hmm.h> +#include <hrt/hive_isp_css_custom_host_hrt.h> + +#define HRT_BUF_FLAG_CACHED BIT(0) + +enum hrt_userptr_type { + HRT_USR_PTR = 0, +#ifdef CONFIG_ION + HRT_USR_ION, +#endif +}; + +struct hrt_userbuffer_attr { + enum hrt_userptr_type type; + unsigned int pgnr; +}; + +void hrt_isp_css_mm_set_user_ptr(void __user *userptr, + unsigned int num_pages, enum hrt_userptr_type); + +/* Allocate memory, returns a virtual address */ +ia_css_ptr hrt_isp_css_mm_alloc(size_t bytes); +ia_css_ptr hrt_isp_css_mm_alloc_user_ptr(size_t bytes, + const void __user *userptr, + unsigned int num_pages, + enum hrt_userptr_type, + bool cached); +ia_css_ptr hrt_isp_css_mm_alloc_cached(size_t bytes); + +/* allocate memory and initialize with zeros, + returns a virtual address */ +ia_css_ptr hrt_isp_css_mm_calloc(size_t bytes); +ia_css_ptr hrt_isp_css_mm_calloc_cached(size_t bytes); + +#endif /* _hive_isp_css_mm_hrt_h_ */ |