static int mxc_ipu_ioctl(struct inode *inode, struct file *file,
unsigned int cmd, unsigned long arg)
{
int ret = 0;
switch (cmd) {
case IPU_INIT_CHANNEL:
{
ipu_channel_parm parm;
if (copy_from_user
(&parm, (ipu_channel_parm *) arg,
sizeof(ipu_channel_parm))) {
return -EFAULT;
}
if (!parm.flag) {
ret =
ipu_init_channel(parm.channel,
&parm.params);
} else {
ret = ipu_init_channel(parm.channel, NULL);
}
}
break;
case IPU_UNINIT_CHANNEL:
{
ipu_channel_t ch;
int __user *argp = (void __user *)arg;
if (get_user(ch, argp))
return -EFAULT;
ipu_uninit_channel(ch);
}
break;
case IPU_INIT_CHANNEL_BUFFER:
{
ipu_channel_buf_parm parm;
if (copy_from_user
(&parm, (ipu_channel_buf_parm *) arg,
sizeof(ipu_channel_buf_parm))) {
return -EFAULT;
}
ret =
ipu_init_channel_buffer(parm.channel, parm.type,
parm.pixel_fmt,
parm.width, parm.height,
parm.stride,
parm.rot_mode,
parm.phyaddr_0,
parm.phyaddr_1,
parm.u_offset,
parm.v_offset);
}
break;
case IPU_UPDATE_CHANNEL_BUFFER:
{
ipu_channel_buf_parm parm;
if (copy_from_user
(&parm, (ipu_channel_buf_parm *) arg,
sizeof(ipu_channel_buf_parm))) {
return -EFAULT;
}
if ((parm.phyaddr_0 != (dma_addr_t) NULL)
&& (parm.phyaddr_1 == (dma_addr_t) NULL)) {
ret =
ipu_update_channel_buffer(parm.channel,
parm.type,
parm.bufNum,
parm.phyaddr_0);
} else if ((parm.phyaddr_0 == (dma_addr_t) NULL)
&& (parm.phyaddr_1 != (dma_addr_t) NULL)) {
ret =
ipu_update_channel_buffer(parm.channel,
parm.type,
parm.bufNum,
parm.phyaddr_1);
} else {
ret = -1;
}
}
break;
case IPU_SELECT_CHANNEL_BUFFER:
{
ipu_channel_buf_parm parm;
if (copy_from_user
(&parm, (ipu_channel_buf_parm *) arg,
sizeof(ipu_channel_buf_parm))) {
return -EFAULT;
}
ret =
ipu_select_buffer(parm.channel, parm.type,
parm.bufNum);
}
break;
case IPU_LINK_CHANNELS:
{
ipu_channel_link link;
if (copy_from_user
(&link, (ipu_channel_link *) arg,
sizeof(ipu_channel_link))) {
return -EFAULT;
}
ret = ipu_link_channels(link.src_ch, link.dest_ch);
}
break;
case IPU_UNLINK_CHANNELS:
{
ipu_channel_link link;
if (copy_from_user
(&link, (ipu_channel_link *) arg,
sizeof(ipu_channel_link))) {
return -EFAULT;
}
ret = ipu_unlink_channels(link.src_ch, link.dest_ch);
}
break;
case IPU_ENABLE_CHANNEL:
{
ipu_channel_t ch;
int __user *argp = (void __user *)arg;
if (get_user(ch, argp))
return -EFAULT;
ipu_enable_channel(ch);
}
break;
case IPU_DISABLE_CHANNEL:
{
ipu_channel_info info;
if (copy_from_user
(&info, (ipu_channel_info *) arg,
sizeof(ipu_channel_info))) {
return -EFAULT;
}
ret = ipu_disable_channel(info.channel, info.stop);
}
break;
case IPU_ENABLE_IRQ:
{
uint32_t irq;
int __user *argp = (void __user *)arg;
if (get_user(irq, argp))
return -EFAULT;
ipu_enable_irq(irq);
}
break;
case IPU_DISABLE_IRQ:
{
uint32_t irq;
int __user *argp = (void __user *)arg;
if (get_user(irq, argp))
return -EFAULT;
ipu_disable_irq(irq);
}
break;
case IPU_CLEAR_IRQ:
{
uint32_t irq;
int __user *argp = (void __user *)arg;
if (get_user(irq, argp))
return -EFAULT;
ipu_clear_irq(irq);
}
break;
case IPU_FREE_IRQ:
{
ipu_irq_info info;
if (copy_from_user
(&info, (ipu_irq_info *) arg,
sizeof(ipu_irq_info))) {
return -EFAULT;
}
ipu_free_irq(info.irq, info.dev_id);
}
break;
case IPU_REQUEST_IRQ_STATUS:
{
uint32_t irq;
int __user *argp = (void __user *)arg;
if (get_user(irq, argp))
return -EFAULT;
ret = ipu_get_irq_status(irq);
}
break;
case IPU_SDC_INIT_PANEL:
{
ipu_sdc_panel_info sinfo;
if (copy_from_user
(&sinfo, (ipu_sdc_panel_info *) arg,
sizeof(ipu_sdc_panel_info))) {
return -EFAULT;
}
ret =
ipu_sdc_init_panel(sinfo.panel, sinfo.pixel_clk,
sinfo.width, sinfo.height,
sinfo.pixel_fmt,
sinfo.hStartWidth,
sinfo.hSyncWidth,
sinfo.hEndWidth,
sinfo.vStartWidth,
sinfo.vSyncWidth,
sinfo.vEndWidth, sinfo.signal);
}
break;
case IPU_SDC_SET_WIN_POS:
{
ipu_sdc_window_pos pos;
if (copy_from_user
(&pos, (ipu_sdc_window_pos *) arg,
sizeof(ipu_sdc_window_pos))) {
return -EFAULT;
}
ret =
ipu_sdc_set_window_pos(pos.channel, pos.x_pos,
pos.y_pos);
}
break;
case IPU_SDC_SET_GLOBAL_ALPHA:
{
ipu_sdc_global_alpha g;
if (copy_from_user
(&g, (ipu_sdc_global_alpha *) arg,
sizeof(ipu_sdc_global_alpha))) {
return -EFAULT;
}
ret = ipu_sdc_set_global_alpha(g.enable, g.alpha);
}
break;
case IPU_SDC_SET_COLOR_KEY:
{
ipu_sdc_color_key c;
if (copy_from_user
(&c, (ipu_sdc_color_key *) arg,
sizeof(ipu_sdc_color_key))) {
return -EFAULT;
}
ret =
ipu_sdc_set_color_key(c.channel, c.enable,
c.colorKey);
}
break;
case IPU_SDC_SET_BRIGHTNESS:
{
uint8_t b;
int __user *argp = (void __user *)arg;
if (get_user(b, argp))
return -EFAULT;
ret = ipu_sdc_set_brightness(b);
}
break;
case IPU_REGISTER_GENERIC_ISR:
{
ipu_event_info info;
if (copy_from_user
(&info, (ipu_event_info *) arg,
sizeof(ipu_event_info))) {
return -EFAULT;
}
ret =
ipu_request_irq(info.irq, mxc_ipu_generic_handler,
0, "video_sink", info.dev);
}
break;
case IPU_GET_EVENT:
/* User will have to allocate event_type structure and pass the pointer in arg */
{
event_type ev;
int r = -1;
r = get_events(&ev);
if (r == -1) {
wait_event_interruptible(waitq,
(pending_events != 0));
r = get_events(&ev);
}
ret = -1;
if (r == 0) {
if (!copy_to_user((event_type *) arg, &ev,
sizeof(event_type))) {
ret = 0;
}
}
}
break;
case IPU_ADC_WRITE_TEMPLATE:
{
ipu_adc_template temp;
if (copy_from_user
(&temp, (ipu_adc_template *) arg, sizeof(temp))) {
return -EFAULT;
}
ret =
ipu_adc_write_template(temp.disp, temp.pCmd,
temp.write);
}
break;
case IPU_ADC_UPDATE:
{
ipu_adc_update update;
if (copy_from_user
(&update, (ipu_adc_update *) arg, sizeof(update))) {
return -EFAULT;
}
ret =
ipu_adc_set_update_mode(update.channel, update.mode,
update.refresh_rate,
update.addr, update.size);
}
break;
case IPU_ADC_SNOOP:
{
ipu_adc_snoop snoop;
if (copy_from_user
(&snoop, (ipu_adc_snoop *) arg, sizeof(snoop))) {
return -EFAULT;
}
ret =
ipu_adc_get_snooping_status(snoop.statl,
snoop.stath);
}
break;
case IPU_ADC_CMD:
{
ipu_adc_cmd cmd;
if (copy_from_user
(&cmd, (ipu_adc_cmd *) arg, sizeof(cmd))) {
return -EFAULT;
}
ret =
ipu_adc_write_cmd(cmd.disp, cmd.type, cmd.cmd,
cmd.params, cmd.numParams);
}
break;
case IPU_ADC_INIT_PANEL:
{
ipu_adc_panel panel;
if (copy_from_user
(&panel, (ipu_adc_panel *) arg, sizeof(panel))) {
return -EFAULT;
}
ret =
ipu_adc_init_panel(panel.disp, panel.width,
panel.height, panel.pixel_fmt,
panel.stride, panel.signal,
panel.addr, panel.vsync_width,
panel.mode);
}
break;
case IPU_ADC_IFC_TIMING:
{
ipu_adc_ifc_timing t;
if (copy_from_user
(&t, (ipu_adc_ifc_timing *) arg, sizeof(t))) {
return -EFAULT;
}
ret =
ipu_adc_init_ifc_timing(t.disp, t.read,
t.cycle_time, t.up_time,
t.down_time,
t.read_latch_time,
t.pixel_clk);
}
break;
case IPU_CSI_INIT_INTERFACE:
{
ipu_csi_interface c;
if (copy_from_user
(&c, (ipu_csi_interface *) arg, sizeof(c)))
return -EFAULT;
ret =
ipu_csi_init_interface(c.width, c.height,
c.pixel_fmt, c.signal);
}
break;
case IPU_CSI_ENABLE_MCLK:
{
ipu_csi_mclk m;
if (copy_from_user(&m, (ipu_csi_mclk *) arg, sizeof(m)))
return -EFAULT;
ret = ipu_csi_enable_mclk(m.src, m.flag, m.wait);
}
break;
case IPU_CSI_READ_MCLK_FLAG:
{
ret = ipu_csi_read_mclk_flag();
}
break;
case IPU_CSI_FLASH_STROBE:
{
bool strobe;
int __user *argp = (void __user *)arg;
if (get_user(strobe, argp))
return -EFAULT;
ipu_csi_flash_strobe(strobe);
}
break;
case IPU_CSI_GET_WIN_SIZE:
{
ipu_csi_window_size w;
ipu_csi_get_window_size(&w.width, &w.height);
if (copy_to_user
((ipu_csi_window_size *) arg, &w, sizeof(w)))
return -EFAULT;
}
break;
case IPU_CSI_SET_WIN_SIZE:
{
ipu_csi_window_size w;
if (copy_from_user
(&w, (ipu_csi_window_size *) arg, sizeof(w)))
return -EFAULT;
ipu_csi_set_window_size(w.width, w.height);
}
break;
case IPU_CSI_SET_WINDOW:
{
ipu_csi_window p;
if (copy_from_user
(&p, (ipu_csi_window *) arg, sizeof(p)))
return -EFAULT;
ipu_csi_set_window_pos(p.left, p.top);
}
break;
case IPU_PF_SET_PAUSE_ROW:
{
uint32_t p;
int __user *argp = (void __user *)arg;
if (get_user(p, argp))
return -EFAULT;
ret = ipu_pf_set_pause_row(p);
}
break;
default:
break;
}
return ret;
}
int mxcfb_set_refresh_mode(struct fb_info *fbi, int mode,
struct mxcfb_rect *update_region)
{
unsigned long start_addr;
int ret_mode;
uint32_t dummy;
ipu_channel_params_t params;
struct mxcfb_rect rect;
struct mxcfb_info *mxc_fbi = (struct mxcfb_info *)fbi->par;
uint32_t stride_pixels = (fbi->fix.line_length * 8) /
fbi->var.bits_per_pixel;
uint32_t memsize = fbi->fix.smem_len;
if (mxc_fbi->cur_update_mode == mode)
return mode;
ret_mode = mxc_fbi->cur_update_mode;
ipu_disable_irq(IPU_IRQ_ADC_SYS1_EOF);
ipu_adc_set_update_mode(ADC_SYS1, IPU_ADC_REFRESH_NONE, 0, 0, 0);
#ifdef PARTIAL_REFRESH
ipu_disable_irq(IPU_IRQ_ADC_SYS2_EOF);
ipu_adc_set_update_mode(ADC_SYS2, IPU_ADC_REFRESH_NONE, 0, 0, 0);
#endif
ipu_disable_channel(ADC_SYS1, true);
ipu_clear_irq(IPU_IRQ_ADC_SYS1_EOF);
#ifdef PARTIAL_REFRESH
ipu_disable_channel(ADC_SYS2, true);
ipu_clear_irq(IPU_IRQ_ADC_SYS2_EOF);
#endif
ipu_adc_get_snooping_status(&dummy, &dummy);
mxc_fbi->cur_update_mode = mode;
switch (mode) {
case MXCFB_REFRESH_OFF:
if (ipu_adc_set_update_mode(ADC_SYS1, IPU_ADC_REFRESH_NONE,
0, 0, 0) < 0)
dev_err(fbi->device, "Error enabling auto refesh.\n");
if (ipu_adc_set_update_mode(ADC_SYS2, IPU_ADC_REFRESH_NONE,
0, 0, 0) < 0)
dev_err(fbi->device, "Error enabling auto refesh.\n");
#if 0
ipu_init_channel_buffer(ADC_SYS2, IPU_INPUT_BUFFER,
bpp_to_pixfmt(fbi->var.bits_per_pixel),
1, 1, 4,
IPU_ROTATE_NONE,
fbi->fix.smem_start,
fbi->fix.smem_start, 0, 0);
ipu_enable_channel(ADC_SYS2);
ipu_select_buffer(ADC_SYS2, IPU_INPUT_BUFFER, 0);
ipu_select_buffer(ADC_SYS2, IPU_INPUT_BUFFER, 1);
msleep(10);
#endif
ipu_uninit_channel(ADC_SYS1);
#ifdef PARTIAL_REFRESH
ipu_uninit_channel(ADC_SYS2);
#endif
break;
case MXCFB_REFRESH_PARTIAL:
#ifdef PARTIAL_REFRESH
ipu_adc_get_snooping_status(&dummy, &dummy);
params.adc_sys2.disp = DISP0;
params.adc_sys2.ch_mode = WriteTemplateNonSeq;
params.adc_sys2.out_left = 0;
params.adc_sys2.out_top = 0;
ipu_init_channel(ADC_SYS2, ¶ms);
if (ipu_adc_set_update_mode(ADC_SYS1, IPU_ADC_REFRESH_NONE,
0, 0, 0) < 0) {
dev_err(fbi->device, "Error enabling auto refesh.\n");
}
if (ipu_adc_set_update_mode
(ADC_SYS2, IPU_ADC_AUTO_REFRESH_SNOOP, 30,
fbi->fix.smem_start, &memsize) < 0) {
dev_err(fbi->device, "Error enabling auto refesh.\n");
}
mxc_fbi->snoop_window_size = memsize;
ipu_init_channel_buffer(ADC_SYS2, IPU_INPUT_BUFFER,
bpp_to_pixfmt(fbi->var.bits_per_pixel),
1, 1, 4,
IPU_ROTATE_NONE,
fbi->fix.smem_start, 0, 0, 0);
params.adc_sys1.disp = mxc_fbi->disp_num;
params.adc_sys1.ch_mode = WriteTemplateNonSeq;
params.adc_sys1.out_left = MXCFB_SCREEN_LEFT_OFFSET;
params.adc_sys1.out_top = MXCFB_SCREEN_TOP_OFFSET;
ipu_init_channel(ADC_SYS1, ¶ms);
ipu_init_channel_buffer(ADC_SYS1, IPU_INPUT_BUFFER,
bpp_to_pixfmt(fbi->var.bits_per_pixel),
MXCFB_SCREEN_WIDTH, MXCFB_SCREEN_HEIGHT,
stride_pixels, IPU_ROTATE_NONE,
fbi->fix.smem_start, 0, 0, 0);
ipu_enable_channel(ADC_SYS1);
ipu_select_buffer(ADC_SYS1, IPU_INPUT_BUFFER, 0);
ipu_enable_irq(IPU_IRQ_ADC_SYS1_EOF);
break;
#endif
case MXCFB_REFRESH_AUTO:
if (update_region == NULL) {
update_region = ▭
rect.top = 0;
rect.left = 0;
rect.height = MXCFB_SCREEN_HEIGHT;
rect.width = MXCFB_SCREEN_WIDTH;
}
params.adc_sys1.disp = mxc_fbi->disp_num;
params.adc_sys1.ch_mode = WriteTemplateNonSeq;
params.adc_sys1.out_left = MXCFB_SCREEN_LEFT_OFFSET +
update_region->left;
params.adc_sys1.out_top = MXCFB_SCREEN_TOP_OFFSET +
update_region->top;
ipu_init_channel(ADC_SYS1, ¶ms);
/* Address aligned to line */
start_addr = update_region->top * fbi->fix.line_length;
start_addr += fbi->fix.smem_start;
start_addr += update_region->left * fbi->var.bits_per_pixel / 8;
ipu_init_channel_buffer(ADC_SYS1, IPU_INPUT_BUFFER,
bpp_to_pixfmt(fbi->var.bits_per_pixel),
update_region->width,
update_region->height, stride_pixels,
IPU_ROTATE_NONE, start_addr, 0, 0, 0);
ipu_enable_channel(ADC_SYS1);
ipu_select_buffer(ADC_SYS1, IPU_INPUT_BUFFER, 0);
if (ipu_adc_set_update_mode
(ADC_SYS1, IPU_ADC_AUTO_REFRESH_SNOOP, 30,
fbi->fix.smem_start, &memsize) < 0)
dev_err(fbi->device, "Error enabling auto refesh.\n");
mxc_fbi->snoop_window_size = memsize;
break;
}
return ret_mode;
}
static long mxc_ipu_ioctl(struct file *file,
unsigned int cmd, unsigned long arg)
{
int ret = 0;
switch (cmd) {
case IPU_INIT_CHANNEL:
{
ipu_channel_parm parm;
if (copy_from_user
(&parm, (ipu_channel_parm *) arg,
sizeof(ipu_channel_parm)))
return -EFAULT;
if (!parm.flag) {
ret =
ipu_init_channel(parm.channel,
&parm.params);
} else {
ret = ipu_init_channel(parm.channel, NULL);
}
}
break;
case IPU_UNINIT_CHANNEL:
{
ipu_channel_t ch;
int __user *argp = (void __user *)arg;
if (get_user(ch, argp))
return -EFAULT;
ipu_uninit_channel(ch);
}
break;
case IPU_INIT_CHANNEL_BUFFER:
{
ipu_channel_buf_parm parm;
if (copy_from_user
(&parm, (ipu_channel_buf_parm *) arg,
sizeof(ipu_channel_buf_parm)))
return -EFAULT;
ret =
ipu_init_channel_buffer(
parm.channel, parm.type,
parm.pixel_fmt,
parm.width, parm.height,
parm.stride,
parm.rot_mode,
parm.phyaddr_0,
parm.phyaddr_1,
parm.u_offset,
parm.v_offset);
}
break;
case IPU_UPDATE_CHANNEL_BUFFER:
{
ipu_channel_buf_parm parm;
if (copy_from_user
(&parm, (ipu_channel_buf_parm *) arg,
sizeof(ipu_channel_buf_parm)))
return -EFAULT;
if ((parm.phyaddr_0 != (dma_addr_t) NULL)
&& (parm.phyaddr_1 == (dma_addr_t) NULL)) {
ret =
ipu_update_channel_buffer(
parm.channel,
parm.type,
parm.bufNum,
parm.phyaddr_0);
} else if ((parm.phyaddr_0 == (dma_addr_t) NULL)
&& (parm.phyaddr_1 != (dma_addr_t) NULL)) {
ret =
ipu_update_channel_buffer(
parm.channel,
parm.type,
parm.bufNum,
parm.phyaddr_1);
} else {
ret = -1;
}
}
break;
case IPU_SELECT_CHANNEL_BUFFER:
{
ipu_channel_buf_parm parm;
if (copy_from_user
(&parm, (ipu_channel_buf_parm *) arg,
sizeof(ipu_channel_buf_parm)))
return -EFAULT;
ret =
ipu_select_buffer(parm.channel,
parm.type, parm.bufNum);
}
break;
case IPU_SELECT_MULTI_VDI_BUFFER:
{
uint32_t parm;
if (copy_from_user
(&parm, (uint32_t *) arg,
sizeof(uint32_t)))
return -EFAULT;
ret = ipu_select_multi_vdi_buffer(parm);
}
break;
case IPU_LINK_CHANNELS:
{
ipu_channel_link link;
if (copy_from_user
(&link, (ipu_channel_link *) arg,
sizeof(ipu_channel_link)))
return -EFAULT;
ret = ipu_link_channels(link.src_ch,
link.dest_ch);
}
break;
case IPU_UNLINK_CHANNELS:
{
ipu_channel_link link;
if (copy_from_user
(&link, (ipu_channel_link *) arg,
sizeof(ipu_channel_link)))
return -EFAULT;
ret = ipu_unlink_channels(link.src_ch,
link.dest_ch);
}
break;
case IPU_ENABLE_CHANNEL:
{
ipu_channel_t ch;
int __user *argp = (void __user *)arg;
if (get_user(ch, argp))
return -EFAULT;
ipu_enable_channel(ch);
}
break;
case IPU_DISABLE_CHANNEL:
{
ipu_channel_info info;
if (copy_from_user
(&info, (ipu_channel_info *) arg,
sizeof(ipu_channel_info)))
return -EFAULT;
ret = ipu_disable_channel(info.channel,
info.stop);
}
break;
case IPU_ENABLE_IRQ:
{
uint32_t irq;
int __user *argp = (void __user *)arg;
if (get_user(irq, argp))
return -EFAULT;
ipu_enable_irq(irq);
}
break;
case IPU_DISABLE_IRQ:
{
uint32_t irq;
int __user *argp = (void __user *)arg;
if (get_user(irq, argp))
return -EFAULT;
ipu_disable_irq(irq);
}
break;
case IPU_CLEAR_IRQ:
{
uint32_t irq;
int __user *argp = (void __user *)arg;
if (get_user(irq, argp))
return -EFAULT;
ipu_clear_irq(irq);
}
break;
case IPU_FREE_IRQ:
{
ipu_irq_info info;
if (copy_from_user
(&info, (ipu_irq_info *) arg,
sizeof(ipu_irq_info)))
return -EFAULT;
ipu_free_irq(info.irq, info.dev_id);
irq_info[info.irq].irq_pending = 0;
}
break;
case IPU_REQUEST_IRQ_STATUS:
{
uint32_t irq;
int __user *argp = (void __user *)arg;
if (get_user(irq, argp))
return -EFAULT;
ret = ipu_get_irq_status(irq);
}
break;
case IPU_REGISTER_GENERIC_ISR:
{
ipu_event_info info;
if (copy_from_user
(&info, (ipu_event_info *) arg,
sizeof(ipu_event_info)))
return -EFAULT;
ret =
ipu_request_irq(info.irq,
mxc_ipu_generic_handler,
0, "video_sink", info.dev);
if (ret == 0)
init_waitqueue_head(&(irq_info[info.irq].waitq));
}
break;
case IPU_GET_EVENT:
/* User will have to allocate event_type
structure and pass the pointer in arg */
{
ipu_event_info info;
int r = -1;
if (copy_from_user
(&info, (ipu_event_info *) arg,
sizeof(ipu_event_info)))
return -EFAULT;
r = get_events(&info);
if (r == -1) {
if ((file->f_flags & O_NONBLOCK) &&
(irq_info[info.irq].irq_pending == 0))
return -EAGAIN;
wait_event_interruptible_timeout(irq_info[info.irq].waitq,
(irq_info[info.irq].irq_pending != 0), 2 * HZ);
r = get_events(&info);
}
ret = -1;
if (r == 0) {
if (!copy_to_user((ipu_event_info *) arg,
&info, sizeof(ipu_event_info)))
ret = 0;
}
}
break;
case IPU_ALOC_MEM:
{
ipu_mem_info info;
if (copy_from_user
(&info, (ipu_mem_info *) arg,
sizeof(ipu_mem_info)))
return -EFAULT;
info.vaddr = dma_alloc_coherent(0,
PAGE_ALIGN(info.size),
&info.paddr,
GFP_DMA | GFP_KERNEL);
if (info.vaddr == 0) {
printk(KERN_ERR "dma alloc failed!\n");
return -ENOBUFS;
}
if (copy_to_user((ipu_mem_info *) arg, &info,
sizeof(ipu_mem_info)) > 0)
return -EFAULT;
}
break;
case IPU_FREE_MEM:
{
ipu_mem_info info;
if (copy_from_user
(&info, (ipu_mem_info *) arg,
sizeof(ipu_mem_info)))
return -EFAULT;
if (info.vaddr)
dma_free_coherent(0, PAGE_ALIGN(info.size),
info.vaddr, info.paddr);
else
return -EFAULT;
}
break;
case IPU_IS_CHAN_BUSY:
{
ipu_channel_t chan;
if (copy_from_user
(&chan, (ipu_channel_t *)arg,
sizeof(ipu_channel_t)))
return -EFAULT;
if (ipu_is_channel_busy(chan))
ret = 1;
else
ret = 0;
}
break;
case IPU_CALC_STRIPES_SIZE:
{
ipu_stripe_parm stripe_parm;
if (copy_from_user (&stripe_parm, (ipu_stripe_parm *)arg,
sizeof(ipu_stripe_parm)))
return -EFAULT;
ipu_calc_stripes_sizes(stripe_parm.input_width,
stripe_parm.output_width,
stripe_parm.maximal_stripe_width,
stripe_parm.cirr,
stripe_parm.equal_stripes,
stripe_parm.input_pixelformat,
stripe_parm.output_pixelformat,
&stripe_parm.left,
&stripe_parm.right);
if (copy_to_user((ipu_stripe_parm *) arg, &stripe_parm,
sizeof(ipu_stripe_parm)) > 0)
return -EFAULT;
}
break;
case IPU_UPDATE_BUF_OFFSET:
{
ipu_buf_offset_parm offset_parm;
if (copy_from_user (&offset_parm, (ipu_buf_offset_parm *)arg,
sizeof(ipu_buf_offset_parm)))
return -EFAULT;
ret = ipu_update_channel_offset(offset_parm.channel,
offset_parm.type,
offset_parm.pixel_fmt,
offset_parm.width,
offset_parm.height,
offset_parm.stride,
offset_parm.u_offset,
offset_parm.v_offset,
offset_parm.vertical_offset,
offset_parm.horizontal_offset);
}
break;
case IPU_CSC_UPDATE:
{
int param[5][3];
ipu_csc_update csc;
if (copy_from_user(&csc, (void *) arg,
sizeof(ipu_csc_update)))
return -EFAULT;
if (copy_from_user(¶m[0][0], (void *) csc.param,
sizeof(param)))
return -EFAULT;
ipu_set_csc_coefficients(csc.channel, param);
}
break;
default:
break;
}
return ret;
}
static int mxc_ipu_ioctl(struct inode *inode, struct file *file,
unsigned int cmd, unsigned long arg)
{
int ret = 0;
switch (cmd) {
case IPU_INIT_CHANNEL:
{
ipu_channel_parm parm;
if (copy_from_user
(&parm, (ipu_channel_parm *) arg,
sizeof(ipu_channel_parm)))
return -EFAULT;
if (!parm.flag) {
ret =
ipu_init_channel(parm.channel,
&parm.params);
} else {
ret = ipu_init_channel(parm.channel, NULL);
}
}
break;
case IPU_UNINIT_CHANNEL:
{
ipu_channel_t ch;
int __user *argp = (void __user *)arg;
if (get_user(ch, argp))
return -EFAULT;
ipu_uninit_channel(ch);
}
break;
case IPU_INIT_CHANNEL_BUFFER:
{
ipu_channel_buf_parm parm;
if (copy_from_user
(&parm, (ipu_channel_buf_parm *) arg,
sizeof(ipu_channel_buf_parm)))
return -EFAULT;
ret =
ipu_init_channel_buffer(
parm.channel, parm.type,
parm.pixel_fmt,
parm.width, parm.height,
parm.stride,
parm.rot_mode,
parm.phyaddr_0,
parm.phyaddr_1,
parm.u_offset,
parm.v_offset);
}
break;
case IPU_UPDATE_CHANNEL_BUFFER:
{
ipu_channel_buf_parm parm;
if (copy_from_user
(&parm, (ipu_channel_buf_parm *) arg,
sizeof(ipu_channel_buf_parm)))
return -EFAULT;
if ((parm.phyaddr_0 != (dma_addr_t) NULL)
&& (parm.phyaddr_1 == (dma_addr_t) NULL)) {
ret =
ipu_update_channel_buffer(
parm.channel,
parm.type,
parm.bufNum,
parm.phyaddr_0);
} else if ((parm.phyaddr_0 == (dma_addr_t) NULL)
&& (parm.phyaddr_1 != (dma_addr_t) NULL)) {
ret =
ipu_update_channel_buffer(
parm.channel,
parm.type,
parm.bufNum,
parm.phyaddr_1);
} else {
ret = -1;
}
}
break;
case IPU_SELECT_CHANNEL_BUFFER:
{
ipu_channel_buf_parm parm;
if (copy_from_user
(&parm, (ipu_channel_buf_parm *) arg,
sizeof(ipu_channel_buf_parm)))
return -EFAULT;
ret =
ipu_select_buffer(parm.channel,
parm.type, parm.bufNum);
}
break;
case IPU_LINK_CHANNELS:
{
ipu_channel_link link;
if (copy_from_user
(&link, (ipu_channel_link *) arg,
sizeof(ipu_channel_link)))
return -EFAULT;
ret = ipu_link_channels(link.src_ch,
link.dest_ch);
}
break;
case IPU_UNLINK_CHANNELS:
{
ipu_channel_link link;
if (copy_from_user
(&link, (ipu_channel_link *) arg,
sizeof(ipu_channel_link)))
return -EFAULT;
ret = ipu_unlink_channels(link.src_ch,
link.dest_ch);
}
break;
case IPU_ENABLE_CHANNEL:
{
ipu_channel_t ch;
int __user *argp = (void __user *)arg;
if (get_user(ch, argp))
return -EFAULT;
ipu_enable_channel(ch);
}
break;
case IPU_DISABLE_CHANNEL:
{
ipu_channel_info info;
if (copy_from_user
(&info, (ipu_channel_info *) arg,
sizeof(ipu_channel_info)))
return -EFAULT;
ret = ipu_disable_channel(info.channel,
info.stop);
}
break;
case IPU_ENABLE_IRQ:
{
uint32_t irq;
int __user *argp = (void __user *)arg;
if (get_user(irq, argp))
return -EFAULT;
ipu_enable_irq(irq);
}
break;
case IPU_DISABLE_IRQ:
{
uint32_t irq;
int __user *argp = (void __user *)arg;
if (get_user(irq, argp))
return -EFAULT;
ipu_disable_irq(irq);
}
break;
case IPU_CLEAR_IRQ:
{
uint32_t irq;
int __user *argp = (void __user *)arg;
if (get_user(irq, argp))
return -EFAULT;
ipu_clear_irq(irq);
}
break;
case IPU_FREE_IRQ:
{
ipu_irq_info info;
int i;
if (copy_from_user
(&info, (ipu_irq_info *) arg,
sizeof(ipu_irq_info)))
return -EFAULT;
ipu_free_irq(info.irq, info.dev_id);
for (i = 0; i < MAX_Q_SIZE; i++) {
if (events[i].irq == info.irq)
events[i].irq = 0;
}
}
break;
case IPU_REQUEST_IRQ_STATUS:
{
uint32_t irq;
int __user *argp = (void __user *)arg;
if (get_user(irq, argp))
return -EFAULT;
ret = ipu_get_irq_status(irq);
}
break;
case IPU_REGISTER_GENERIC_ISR:
{
ipu_event_info info;
if (copy_from_user
(&info, (ipu_event_info *) arg,
sizeof(ipu_event_info)))
return -EFAULT;
ret =
ipu_request_irq(info.irq,
mxc_ipu_generic_handler,
0, "video_sink", info.dev);
}
break;
case IPU_GET_EVENT:
/* User will have to allocate event_type
structure and pass the pointer in arg */
{
ipu_event_info info;
int r = -1;
if (copy_from_user
(&info, (ipu_event_info *) arg,
sizeof(ipu_event_info)))
return -EFAULT;
r = get_events(&info);
if (r == -1) {
wait_event_interruptible_timeout(waitq,
(pending_events != 0), HZ/10);
r = get_events(&info);
}
ret = -1;
if (r == 0) {
if (!copy_to_user((ipu_event_info *) arg,
&info, sizeof(ipu_event_info)))
ret = 0;
}
}
break;
case IPU_ALOC_MEM:
{
ipu_mem_info info;
if (copy_from_user
(&info, (ipu_mem_info *) arg,
sizeof(ipu_mem_info)))
return -EFAULT;
info.vaddr = dma_alloc_coherent(0,
PAGE_ALIGN(info.size),
&info.paddr,
GFP_DMA | GFP_KERNEL);
if (info.vaddr == 0) {
printk(KERN_ERR "dma alloc failed!\n");
return -ENOBUFS;
}
if (copy_to_user((ipu_mem_info *) arg, &info,
sizeof(ipu_mem_info)) > 0)
return -EFAULT;
}
break;
case IPU_FREE_MEM:
{
ipu_mem_info info;
if (copy_from_user
(&info, (ipu_mem_info *) arg,
sizeof(ipu_mem_info)))
return -EFAULT;
if (info.vaddr)
dma_free_coherent(0, PAGE_ALIGN(info.size),
info.vaddr, info.paddr);
else
return -EFAULT;
}
break;
case IPU_IS_CHAN_BUSY:
{
ipu_channel_t chan;
if (copy_from_user
(&chan, (ipu_channel_t *)arg,
sizeof(ipu_channel_t)))
return -EFAULT;
if (ipu_is_channel_busy(chan))
ret = 1;
else
ret = 0;
}
break;
default:
break;
}
return ret;
}