void set_dma_count(unsigned int chan, unsigned int count)
{
struct dma_info *info = get_dma_info(chan);
struct dma_channel *channel = &info->channels[chan];
channel->count = count;
}
void set_dma_mode(unsigned int chan, char mode)
{
struct dma_info *info = get_dma_info(chan);
struct dma_channel *channel = &info->channels[chan];
channel->mode = mode;
}
void enable_dma(unsigned int chan)
{
struct dma_info *info = get_dma_info(chan);
struct dma_channel *channel = &info->channels[chan];
info->ops->xfer(channel);
}
static int init_fdma_nand(struct stm_nand_emi *data)
{
const char *dmac_id[] = {STM_DMAC_ID, NULL};
const char *cap_channel[] = {STM_DMA_CAP_LOW_BW,
STM_DMA_CAP_HIGH_BW, NULL};
int i;
/* Request DMA channel for NAND transactions */
data->dma_chan = request_dma_bycap(dmac_id, cap_channel, NAME);
if (data->dma_chan < 0) {
printk(KERN_ERR NAME ": request_dma_bycap failed!\n");
return -EBUSY;
}
/* Initialise DMA paramters */
for (i = 0; i < 2; i++) {
dma_params_init(&data->dma_params[i], MODE_FREERUNNING,
STM_DMA_LIST_OPEN);
dma_params_DIM_1_x_1(&data->dma_params[i]);
dma_params_err_cb(&data->dma_params[i], fdma_err, 0,
STM_DMA_CB_CONTEXT_TASKLET);
}
printk(KERN_INFO NAME ": %s assigned %s(%d)\n",
data->mtd.name, get_dma_info(data->dma_chan)->name,
data->dma_chan);
return 0;
}
static ssize_t dma_show_devices(struct device *dev,
struct device_attribute *attr, char *buf)
{
ssize_t len = 0;
int i;
for (i = 0; get_dma_info(i) != NULL; i++) {
struct dma_info *info = get_dma_info(i);
struct dma_channel *channel = get_dma_channel(i);
if (unlikely(!info) || !channel)
continue;
len += sprintf(buf + len, "%2d: %14s %s\n",
channel->chan, info->name,
channel->dev_id);
}
return len;
}
void set_dma_addr(unsigned int chan, unsigned int addr)
{
struct dma_info *info = get_dma_info(chan);
struct dma_channel *channel = &info->channels[chan];
/*
* Single address mode is the only thing supported through
* this interface.
*/
if ((channel->mode & DMA_MODE_MASK) == DMA_MODE_READ) {
channel->sar = addr;
} else {
channel->dar = addr;
}
}
static ssize_t dma_show_devices(struct sys_device *dev, char *buf)
{
ssize_t len = 0;
int i;
for (i = 0; i < MAX_DMA_CHANNELS; i++) {
struct dma_info *info = get_dma_info(i);
struct dma_channel *channel = &info->channels[i];
len += sprintf(buf + len, "%2d: %14s %s\n",
channel->chan, info->name,
channel->dev_id);
}
return len;
}
void daemon_init()
{
get_dma_info(&membase, &memsize);
sbase = membase + config.sbase_offset;
initscr();
keypad(stdscr, TRUE);
cbreak();
noecho();
timeout(-1);
start_color();
init_pair(7, COLOR_BLACK, COLOR_BLACK);
init_pair(6, COLOR_RED, COLOR_BLACK);
init_pair(5, COLOR_GREEN, COLOR_BLACK);
init_pair(4, COLOR_YELLOW, COLOR_BLACK);
init_pair(3, COLOR_BLUE, COLOR_BLACK);
init_pair(2, COLOR_MAGENTA, COLOR_BLACK);
init_pair(1, COLOR_CYAN, COLOR_BLACK);
init_pair(0, COLOR_WHITE, COLOR_BLACK);
return;
}
int mmu_init()
{
get_dma_info(&membase, &memsize);
reg_cpr_write(FKREG_CPR_MMUD, 0, 1);
return MEMU_SUCCESS;
}