[lantiq]

[openwrt/svn-archive/archive.git] / package / lqtapi / src / mps / mps-fifo.c

diff --git a/package/lqtapi/src/mps/mps-fifo.c b/package/lqtapi/src/mps/mps-fifo.c
deleted file mode 100644 (file)
index 9d88a45..0000000
--- a/package/lqtapi/src/mps/mps-fifo.c
+++ /dev/null
@@ -1,102 +0,0 @@
-#include <linux/io.h>
-
-#include "mps.h"
-
-void mps_fifo_init(struct mps_fifo *fifo, void __iomem *base,
-       void __iomem *head_addr, void __iomem *tail_addr, uint32_t size)
-{
-       fifo->base = base;
-       fifo->head_addr = head_addr;
-       fifo->tail_addr = tail_addr;
-       fifo->size = size;
-       mps_fifo_reset(fifo);
-}
-
-void mps_fifo_in(struct mps_fifo *fifo, const uint32_t *from, size_t len)
-{
-       uint32_t head = __raw_readl(fifo->head_addr);
-       void __iomem *base = fifo->base + head;
-       size_t i = 0;
-       size_t byte_len = len * 4;
-
-       if (head < byte_len) {
-               for(; i <= head / 4; ++i) {
-                       __raw_writel(from[i], base);
-                       base -= 4;
-               }
-
-               base += fifo->size;
-               head += fifo->size;
-       }
-
-       for(; i < len; ++i) {
-               __raw_writel(from[i], base);
-               base -= 4;
-       }
-
-       head -= byte_len;
-       __raw_writel(head, fifo->head_addr);
-
-}
-EXPORT_SYMBOL_GPL(mps_fifo_in);
-
-void mps_fifo_out(struct mps_fifo *fifo, uint32_t *to, size_t len)
-{
-       uint32_t tail = __raw_readl(fifo->tail_addr);
-       void __iomem *base = fifo->base + tail;
-       size_t i = 0;
-       size_t byte_len = len * 4;
-
-       if (tail < byte_len) {
-               for(; i <= tail / 4; ++i) {
-                       to[i] = __raw_readl(base);
-                       base -= 4;
-               }
-
-               base += fifo->size;
-               tail += fifo->size;
-       }
-
-       for(; i < len; ++i) {
-               to[i] = __raw_readl(base);
-               base -= 4;
-       }
-
-       tail -= byte_len;
-       __raw_writel(tail, fifo->tail_addr);
-}
-EXPORT_SYMBOL_GPL(mps_fifo_out);
-
-uint32_t mps_fifo_peek(struct mps_fifo *fifo)
-{
-       uint32_t tail = __raw_readl(fifo->tail_addr);
-       void __iomem *base = fifo->base + tail;
-       return __raw_readl(base);
-}
-
-void mps_fifo_reset(struct mps_fifo *fifo)
-{
-       void __iomem *base = fifo->base + fifo->size - 4;
-       size_t i;
-
-       __raw_writel(fifo->size - 4, fifo->head_addr);
-       __raw_writel(fifo->size - 4, fifo->tail_addr);
-
-       for(i = 0; i < 16; ++i) {
-               __raw_writel(0x0, base);
-               base -= 4;
-       }
-}
-
-size_t mps_fifo_len(struct mps_fifo *fifo)
-{
-       uint32_t head = __raw_readl(fifo->head_addr);
-       uint32_t tail = __raw_readl(fifo->tail_addr);
-
-       if (tail < head)
-               return head - tail;
-       else
-               return fifo->size - (tail - head);
-}
-EXPORT_SYMBOL_GPL(mps_fifo_len);
-