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authorDmitry Torokhov <dtor_core@ameritech.net>2005-12-20 23:03:50 -0500
committerDmitry Torokhov <dtor_core@ameritech.net>2005-12-20 23:03:50 -0500
commit041387d98460b3947587929ef3a4773b8c48538f (patch)
tree3330eebba3fa1aa7c13479e527f07b03d7fb53ed /drivers/media/video/em28xx
parent56f0356321a876a1a356712f2486d6188a3b4992 (diff)
parentb05948d9b7167e23af88cc65b9ffa4687eaf1f0d (diff)
Manual merge with Linus (conflict in drivers/input/misc/wistron_bnts.c)
Diffstat (limited to 'drivers/media/video/em28xx')
-rw-r--r--drivers/media/video/em28xx/em28xx-core.c50
-rw-r--r--drivers/media/video/em28xx/em28xx-i2c.c2
-rw-r--r--drivers/media/video/em28xx/em28xx-video.c21
3 files changed, 11 insertions, 62 deletions
diff --git a/drivers/media/video/em28xx/em28xx-core.c b/drivers/media/video/em28xx/em28xx-core.c
index 9f6e5e5355a1..0cfe75416ec6 100644
--- a/drivers/media/video/em28xx/em28xx-core.c
+++ b/drivers/media/video/em28xx/em28xx-core.c
@@ -116,47 +116,6 @@ void em28xx_print_ioctl(char *name, unsigned int cmd)
116 } 116 }
117} 117}
118 118
119static void *rvmalloc(size_t size)
120{
121 void *mem;
122 unsigned long adr;
123
124 size = PAGE_ALIGN(size);
125
126 mem = vmalloc_32((unsigned long)size);
127 if (!mem)
128 return NULL;
129
130 memset(mem, 0, size);
131
132 adr = (unsigned long)mem;
133 while (size > 0) {
134 SetPageReserved(vmalloc_to_page((void *)adr));
135 adr += PAGE_SIZE;
136 size -= PAGE_SIZE;
137 }
138
139 return mem;
140}
141
142static void rvfree(void *mem, size_t size)
143{
144 unsigned long adr;
145
146 if (!mem)
147 return;
148
149 size = PAGE_ALIGN(size);
150
151 adr = (unsigned long)mem;
152 while (size > 0) {
153 ClearPageReserved(vmalloc_to_page((void *)adr));
154 adr += PAGE_SIZE;
155 size -= PAGE_SIZE;
156 }
157
158 vfree(mem);
159}
160 119
161/* 120/*
162 * em28xx_request_buffers() 121 * em28xx_request_buffers()
@@ -167,14 +126,16 @@ u32 em28xx_request_buffers(struct em28xx *dev, u32 count)
167 const size_t imagesize = PAGE_ALIGN(dev->frame_size); /*needs to be page aligned cause the buffers can be mapped individually! */ 126 const size_t imagesize = PAGE_ALIGN(dev->frame_size); /*needs to be page aligned cause the buffers can be mapped individually! */
168 void *buff = NULL; 127 void *buff = NULL;
169 u32 i; 128 u32 i;
170 em28xx_coredbg("requested %i buffers with size %i", count, imagesize); 129 em28xx_coredbg("requested %i buffers with size %zd", count, imagesize);
171 if (count > EM28XX_NUM_FRAMES) 130 if (count > EM28XX_NUM_FRAMES)
172 count = EM28XX_NUM_FRAMES; 131 count = EM28XX_NUM_FRAMES;
173 132
174 dev->num_frames = count; 133 dev->num_frames = count;
175 while (dev->num_frames > 0) { 134 while (dev->num_frames > 0) {
176 if ((buff = rvmalloc(dev->num_frames * imagesize))) 135 if ((buff = vmalloc_32(dev->num_frames * imagesize))) {
136 memset(buff, 0, dev->num_frames * imagesize);
177 break; 137 break;
138 }
178 dev->num_frames--; 139 dev->num_frames--;
179 } 140 }
180 141
@@ -217,8 +178,7 @@ void em28xx_queue_unusedframes(struct em28xx *dev)
217void em28xx_release_buffers(struct em28xx *dev) 178void em28xx_release_buffers(struct em28xx *dev)
218{ 179{
219 if (dev->num_frames) { 180 if (dev->num_frames) {
220 rvfree(dev->frame[0].bufmem, 181 vfree(dev->frame[0].bufmem);
221 dev->num_frames * PAGE_ALIGN(dev->frame[0].buf.length));
222 dev->num_frames = 0; 182 dev->num_frames = 0;
223 } 183 }
224} 184}
diff --git a/drivers/media/video/em28xx/em28xx-i2c.c b/drivers/media/video/em28xx/em28xx-i2c.c
index b32d9852f34c..7f5603054f02 100644
--- a/drivers/media/video/em28xx/em28xx-i2c.c
+++ b/drivers/media/video/em28xx/em28xx-i2c.c
@@ -41,7 +41,7 @@ module_param(i2c_debug, int, 0644);
41MODULE_PARM_DESC(i2c_debug, "enable debug messages [i2c]"); 41MODULE_PARM_DESC(i2c_debug, "enable debug messages [i2c]");
42 42
43#define dprintk1(lvl,fmt, args...) if (i2c_debug>=lvl) do {\ 43#define dprintk1(lvl,fmt, args...) if (i2c_debug>=lvl) do {\
44 printk(fmt , ##args); } while (0) 44 printk(fmt, ##args); } while (0)
45#define dprintk2(lvl,fmt, args...) if (i2c_debug>=lvl) do{ \ 45#define dprintk2(lvl,fmt, args...) if (i2c_debug>=lvl) do{ \
46 printk(KERN_DEBUG "%s at %s: " fmt, \ 46 printk(KERN_DEBUG "%s at %s: " fmt, \
47 dev->name, __FUNCTION__ , ##args); } while (0) 47 dev->name, __FUNCTION__ , ##args); } while (0)
diff --git a/drivers/media/video/em28xx/em28xx-video.c b/drivers/media/video/em28xx/em28xx-video.c
index abec32c175aa..06d76879bde2 100644
--- a/drivers/media/video/em28xx/em28xx-video.c
+++ b/drivers/media/video/em28xx/em28xx-video.c
@@ -189,16 +189,6 @@ static DECLARE_RWSEM(em28xx_disconnect);
189 189
190/********************* v4l2 interface ******************************************/ 190/********************* v4l2 interface ******************************************/
191 191
192static inline unsigned long kvirt_to_pa(unsigned long adr)
193{
194 unsigned long kva, ret;
195
196 kva = (unsigned long)page_address(vmalloc_to_page((void *)adr));
197 kva |= adr & (PAGE_SIZE - 1);
198 ret = __pa(kva);
199 return ret;
200}
201
202/* 192/*
203 * em28xx_config() 193 * em28xx_config()
204 * inits registers with sane defaults 194 * inits registers with sane defaults
@@ -616,7 +606,8 @@ static struct vm_operations_struct em28xx_vm_ops = {
616static int em28xx_v4l2_mmap(struct file *filp, struct vm_area_struct *vma) 606static int em28xx_v4l2_mmap(struct file *filp, struct vm_area_struct *vma)
617{ 607{
618 unsigned long size = vma->vm_end - vma->vm_start, 608 unsigned long size = vma->vm_end - vma->vm_start,
619 start = vma->vm_start, pos, page; 609 start = vma->vm_start;
610 void *pos;
620 u32 i; 611 u32 i;
621 612
622 struct em28xx *dev = filp->private_data; 613 struct em28xx *dev = filp->private_data;
@@ -657,12 +648,10 @@ static int em28xx_v4l2_mmap(struct file *filp, struct vm_area_struct *vma)
657 vma->vm_flags |= VM_IO; 648 vma->vm_flags |= VM_IO;
658 vma->vm_flags |= VM_RESERVED; /* avoid to swap out this VMA */ 649 vma->vm_flags |= VM_RESERVED; /* avoid to swap out this VMA */
659 650
660 pos = (unsigned long)dev->frame[i].bufmem; 651 pos = dev->frame[i].bufmem;
661 while (size > 0) { /* size is page-aligned */ 652 while (size > 0) { /* size is page-aligned */
662 page = vmalloc_to_pfn((void *)pos); 653 if (vm_insert_page(vma, start, vmalloc_to_page(pos))) {
663 if (remap_pfn_range(vma, start, page, PAGE_SIZE, 654 em28xx_videodbg("mmap: vm_insert_page failed\n");
664 vma->vm_page_prot)) {
665 em28xx_videodbg("mmap: rename page map failed\n");
666 up(&dev->fileop_lock); 655 up(&dev->fileop_lock);
667 return -EAGAIN; 656 return -EAGAIN;
668 } 657 }