From 3040d05685c899c4a0be86667fa206b19dab0ab8 Mon Sep 17 00:00:00 2001 From: Mark Einon Date: Fri, 4 Jan 2013 22:25:45 +0000 Subject: [PATCH] staging: et131x: Replace rxdma csr register magic numbers with defines Several magic numbers were used to represent rxdma csr register bitmasks. Replace them with descriptive defines. Signed-off-by: Mark Einon Signed-off-by: Greg Kroah-Hartman --- drivers/staging/et131x/et131x.c | 34 ++++++++++++++++----------------- drivers/staging/et131x/et131x.h | 8 ++++++++ 2 files changed, 25 insertions(+), 17 deletions(-) diff --git a/drivers/staging/et131x/et131x.c b/drivers/staging/et131x/et131x.c index 84bbcd48e264..b08dff959234 100644 --- a/drivers/staging/et131x/et131x.c +++ b/drivers/staging/et131x/et131x.c @@ -577,7 +577,6 @@ static int eeprom_wait_ready(struct pci_dev *pdev, u32 *status) return -ETIMEDOUT; } - /** * eeprom_write - Write a byte to the ET1310's EEPROM * @adapter: pointer to our private adapter structure @@ -843,29 +842,29 @@ static int et131x_init_eeprom(struct et131x_adapter *adapter) static void et131x_rx_dma_enable(struct et131x_adapter *adapter) { /* Setup the receive dma configuration register for normal operation */ - u32 csr = 0x2000; /* FBR1 enable */ + u32 csr = ET_RXDMA_CSR_FBR1_ENABLE; if (adapter->rx_ring.fbr[1]->buffsize == 4096) - csr |= 0x0800; + csr |= ET_RXDMA_CSR_FBR1_SIZE_LO; else if (adapter->rx_ring.fbr[1]->buffsize == 8192) - csr |= 0x1000; + csr |= ET_RXDMA_CSR_FBR1_SIZE_HI; else if (adapter->rx_ring.fbr[1]->buffsize == 16384) - csr |= 0x1800; + csr |= ET_RXDMA_CSR_FBR1_SIZE_LO | ET_RXDMA_CSR_FBR1_SIZE_HI; - csr |= 0x0400; /* FBR0 enable */ + csr |= ET_RXDMA_CSR_FBR0_ENABLE; if (adapter->rx_ring.fbr[0]->buffsize == 256) - csr |= 0x0100; + csr |= ET_RXDMA_CSR_FBR0_SIZE_LO; else if (adapter->rx_ring.fbr[0]->buffsize == 512) - csr |= 0x0200; + csr |= ET_RXDMA_CSR_FBR0_SIZE_HI; else if (adapter->rx_ring.fbr[0]->buffsize == 1024) - csr |= 0x0300; + csr |= ET_RXDMA_CSR_FBR0_SIZE_LO | ET_RXDMA_CSR_FBR0_SIZE_HI; writel(csr, &adapter->regs->rxdma.csr); csr = readl(&adapter->regs->rxdma.csr); - if (csr & 0x00020000) { + if (csr & ET_RXDMA_CSR_HALT_STATUS) { udelay(5); csr = readl(&adapter->regs->rxdma.csr); - if (csr & 0x00020000) { + if (csr & ET_RXDMA_CSR_HALT_STATUS) { dev_err(&adapter->pdev->dev, "RX Dma failed to exit halt state. CSR 0x%08x\n", csr); @@ -881,15 +880,16 @@ static void et131x_rx_dma_disable(struct et131x_adapter *adapter) { u32 csr; /* Setup the receive dma configuration register */ - writel(0x00002001, &adapter->regs->rxdma.csr); + writel(ET_RXDMA_CSR_HALT | ET_RXDMA_CSR_FBR1_ENABLE, + &adapter->regs->rxdma.csr); csr = readl(&adapter->regs->rxdma.csr); - if ((csr & 0x00020000) == 0) { /* Check halt status (bit 17) */ + if (!(csr & ET_RXDMA_CSR_HALT_STATUS)) { udelay(5); csr = readl(&adapter->regs->rxdma.csr); - if ((csr & 0x00020000) == 0) + if (!(csr & ET_RXDMA_CSR_HALT_STATUS)) dev_err(&adapter->pdev->dev, - "RX Dma failed to enter halt state. CSR 0x%08x\n", - csr); + "RX Dma failed to enter halt state. CSR 0x%08x\n", + csr); } } @@ -2032,7 +2032,7 @@ static void et131x_disable_interrupts(struct et131x_adapter *adapter) static void et131x_tx_dma_disable(struct et131x_adapter *adapter) { /* Setup the tramsmit dma configuration register */ - writel(ET_TXDMA_CSR_HALT|ET_TXDMA_SNGL_EPKT, + writel(ET_TXDMA_CSR_HALT | ET_TXDMA_SNGL_EPKT, &adapter->regs->txdma.csr); } diff --git a/drivers/staging/et131x/et131x.h b/drivers/staging/et131x/et131x.h index 347e63ddde1f..9fa47f91a9f2 100644 --- a/drivers/staging/et131x/et131x.h +++ b/drivers/staging/et131x/et131x.h @@ -317,6 +317,14 @@ struct txdma_regs { /* Location: */ * 18-31: unused */ +#define ET_RXDMA_CSR_HALT 0x0001 +#define ET_RXDMA_CSR_FBR0_SIZE_LO 0x0100 +#define ET_RXDMA_CSR_FBR0_SIZE_HI 0x0200 +#define ET_RXDMA_CSR_FBR0_ENABLE 0x0400 +#define ET_RXDMA_CSR_FBR1_SIZE_LO 0x0800 +#define ET_RXDMA_CSR_FBR1_SIZE_HI 0x1000 +#define ET_RXDMA_CSR_FBR1_ENABLE 0x2000 +#define ET_RXDMA_CSR_HALT_STATUS 0x00020000 /* * structure for dma writeback lo reg in rxdma address map -- 2.20.1