b/drivers/media/dvb/mantis/hopper_cards.c
@@ -126,7 +126,7 @@ static irqreturn_t hopper_irq_handler(int irq, void
*dev_id)
}
if (stat & MANTIS_INT_RISCI) {
dprintk(MANTIS_DEBUG, 0, "<%s>", label[8]);
- mantis->finished_block = (stat & MANTIS_INT_RISCSTAT) >> 28;
+ mantis->busy_block = (stat & MANTIS_INT_RISCSTAT) >> 28;
tasklet_schedule(&mantis->tasklet);
}
if (stat & MANTIS_INT_I2CDONE) {
b/drivers/media/dvb/mantis/mantis_cards.c
@@ -134,7 +134,7 @@ static irqreturn_t mantis_irq_handler(int irq, void
*dev_id)
}
if (stat & MANTIS_INT_RISCI) {
dprintk(MANTIS_DEBUG, 0, "<%s>", label[8]);
- mantis->finished_block = (stat & MANTIS_INT_RISCSTAT) >> 28;
+ mantis->busy_block = (stat & MANTIS_INT_RISCSTAT) >> 28;
tasklet_schedule(&mantis->tasklet);
}
if (stat & MANTIS_INT_I2CDONE) {
b/drivers/media/dvb/mantis/mantis_common.h
@@ -122,11 +122,8 @@ struct mantis_pci {
unsigned int num;
/* RISC Core */
- u32 finished_block;
+ u32 busy_block;
u32 last_block;
- u32 line_bytes;
- u32 line_count;
- u32 risc_pos;
u8 *buf_cpu;
dma_addr_t buf_dma;
u32 *risc_cpu;
b/drivers/media/dvb/mantis/mantis_dma.c
@@ -43,13 +43,17 @@
#define RISC_IRQ (0x01 << 24)
#define RISC_STATUS(status) ((((~status) & 0x0f) << 20) | ((status
& 0x0f) << 16))
-#define RISC_FLUSH() (mantis->risc_pos = 0)
-#define RISC_INSTR(opcode) (mantis->risc_cpu[mantis->risc_pos++] =
cpu_to_le32(opcode))
+#define RISC_FLUSH(risc_pos) (risc_pos = 0)
+#define RISC_INSTR(risc_pos, opcode) (mantis->risc_cpu[risc_pos++] =
cpu_to_le32(opcode))
#define MANTIS_BUF_SIZE (64 * 1024)
-#define MANTIS_BLOCK_BYTES (MANTIS_BUF_SIZE >> 4)
-#define MANTIS_BLOCK_COUNT (1 << 4)
-#define MANTIS_RISC_SIZE PAGE_SIZE
+#define MANTIS_BLOCK_BYTES (MANTIS_BUF_SIZE / 4)
+#define MANTIS_DMA_TR_BYTES (2 * 1024) /* upper limit: 4095 bytes. */
+#define MANTIS_BLOCK_COUNT (MANTIS_BUF_SIZE / MANTIS_BLOCK_BYTES)
+
+#define MANTIS_DMA_TR_UNITS (MANTIS_BLOCK_BYTES / MANTIS_DMA_TR_BYTES)
+/* MANTIS_BUF_SIZE / MANTIS_DMA_TR_UNITS must not exceed
MANTIS_RISC_SIZE (4k RISC cmd buffer) */