aboutsummaryrefslogtreecommitdiff
path: root/drivers/net/irda/pxaficp_ir.c
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/net/irda/pxaficp_ir.c')
-rw-r--r--drivers/net/irda/pxaficp_ir.c77
1 files changed, 38 insertions, 39 deletions
diff --git a/drivers/net/irda/pxaficp_ir.c b/drivers/net/irda/pxaficp_ir.c
index c192c31e4c5..3eeaaf80049 100644
--- a/drivers/net/irda/pxaficp_ir.c
+++ b/drivers/net/irda/pxaficp_ir.c
@@ -12,6 +12,8 @@
* Infra-red driver (SIR/FIR) for the PXA2xx embedded microprocessor
*
*/
+#include <linux/dma-mapping.h>
+#include <linux/interrupt.h>
#include <linux/module.h>
#include <linux/netdevice.h>
#include <linux/etherdevice.h>
@@ -26,9 +28,9 @@
#include <net/irda/irda_device.h>
#include <mach/dma.h>
-#include <mach/irda.h>
-#include <mach/regs-uart.h>
+#include <linux/platform_data/irda-pxaficp.h>
#include <mach/regs-ost.h>
+#include <mach/regs-uart.h>
#define FICP __REG(0x40800000) /* Start of FICP area */
#define ICCR0 __REG(0x40800000) /* ICP Control Register 0 */
@@ -40,7 +42,7 @@
#define ICCR0_AME (1 << 7) /* Address match enable */
#define ICCR0_TIE (1 << 6) /* Transmit FIFO interrupt enable */
-#define ICCR0_RIE (1 << 5) /* Recieve FIFO interrupt enable */
+#define ICCR0_RIE (1 << 5) /* Receive FIFO interrupt enable */
#define ICCR0_RXE (1 << 4) /* Receive enable */
#define ICCR0_TXE (1 << 3) /* Transmit enable */
#define ICCR0_TUS (1 << 2) /* Transmit FIFO underrun select */
@@ -110,6 +112,9 @@ struct pxa_irda {
int txdma;
int rxdma;
+ int uart_irq;
+ int icp_irq;
+
struct irlap_cb *irlap;
struct qos_info qos;
@@ -126,20 +131,20 @@ struct pxa_irda {
static inline void pxa_irda_disable_clk(struct pxa_irda *si)
{
if (si->cur_clk)
- clk_disable(si->cur_clk);
+ clk_disable_unprepare(si->cur_clk);
si->cur_clk = NULL;
}
static inline void pxa_irda_enable_firclk(struct pxa_irda *si)
{
si->cur_clk = si->fir_clk;
- clk_enable(si->fir_clk);
+ clk_prepare_enable(si->fir_clk);
}
static inline void pxa_irda_enable_sirclk(struct pxa_irda *si)
{
si->cur_clk = si->sir_clk;
- clk_enable(si->sir_clk);
+ clk_prepare_enable(si->sir_clk);
}
@@ -287,7 +292,7 @@ static irqreturn_t pxa_irda_sir_irq(int irq, void *dev_id)
}
lsr = STLSR;
}
- si->last_oscr = OSCR;
+ si->last_oscr = readl_relaxed(OSCR);
break;
case 0x04: /* Received Data Available */
@@ -298,7 +303,7 @@ static irqreturn_t pxa_irda_sir_irq(int irq, void *dev_id)
dev->stats.rx_bytes++;
async_unwrap_char(dev, &dev->stats, &si->rx_buff, STRBR);
} while (STLSR & LSR_DR);
- si->last_oscr = OSCR;
+ si->last_oscr = readl_relaxed(OSCR);
break;
case 0x02: /* Transmit FIFO Data Request */
@@ -314,7 +319,7 @@ static irqreturn_t pxa_irda_sir_irq(int irq, void *dev_id)
/* We need to ensure that the transmitter has finished. */
while ((STLSR & LSR_TEMT) == 0)
cpu_relax();
- si->last_oscr = OSCR;
+ si->last_oscr = readl_relaxed(OSCR);
/*
* Ok, we've finished transmitting. Now enable
@@ -368,7 +373,7 @@ static void pxa_irda_fir_dma_tx_irq(int channel, void *data)
while (ICSR1 & ICSR1_TBY)
cpu_relax();
- si->last_oscr = OSCR;
+ si->last_oscr = readl_relaxed(OSCR);
/*
* HACK: It looks like the TBY bit is dropped too soon.
@@ -468,7 +473,7 @@ static irqreturn_t pxa_irda_fir_irq(int irq, void *dev_id)
/* stop RX DMA */
DCSR(si->rxdma) &= ~DCSR_RUN;
- si->last_oscr = OSCR;
+ si->last_oscr = readl_relaxed(OSCR);
icsr0 = ICSR0;
if (icsr0 & (ICSR0_FRE | ICSR0_RAB)) {
@@ -483,7 +488,7 @@ static irqreturn_t pxa_irda_fir_irq(int irq, void *dev_id)
}
if (icsr0 & ICSR0_EIF) {
- /* An error in FIFO occured, or there is a end of frame */
+ /* An error in FIFO occurred, or there is a end of frame */
pxa_irda_fir_irq_eif(si, dev, icsr0);
}
@@ -544,7 +549,7 @@ static int pxa_irda_hard_xmit(struct sk_buff *skb, struct net_device *dev)
skb_copy_from_linear_data(skb, si->dma_tx_buff, skb->len);
if (mtt)
- while ((unsigned)(OSCR - si->last_oscr)/4 < mtt)
+ while ((unsigned)(readl_relaxed(OSCR) - si->last_oscr)/4 < mtt)
cpu_relax();
/* stop RX DMA, disable FICP */
@@ -670,19 +675,19 @@ static int pxa_irda_start(struct net_device *dev)
si->speed = 9600;
- err = request_irq(IRQ_STUART, pxa_irda_sir_irq, 0, dev->name, dev);
+ err = request_irq(si->uart_irq, pxa_irda_sir_irq, 0, dev->name, dev);
if (err)
goto err_irq1;
- err = request_irq(IRQ_ICP, pxa_irda_fir_irq, 0, dev->name, dev);
+ err = request_irq(si->icp_irq, pxa_irda_fir_irq, 0, dev->name, dev);
if (err)
goto err_irq2;
/*
* The interrupt must remain disabled for now.
*/
- disable_irq(IRQ_STUART);
- disable_irq(IRQ_ICP);
+ disable_irq(si->uart_irq);
+ disable_irq(si->icp_irq);
err = -EBUSY;
si->rxdma = pxa_request_dma("FICP_RX",DMA_PRIO_LOW, pxa_irda_fir_dma_rx_irq, dev);
@@ -695,12 +700,12 @@ static int pxa_irda_start(struct net_device *dev)
err = -ENOMEM;
si->dma_rx_buff = dma_alloc_coherent(si->dev, IRDA_FRAME_SIZE_LIMIT,
- &si->dma_rx_buff_phy, GFP_KERNEL );
+ &si->dma_rx_buff_phy, GFP_KERNEL);
if (!si->dma_rx_buff)
goto err_dma_rx_buff;
si->dma_tx_buff = dma_alloc_coherent(si->dev, IRDA_FRAME_SIZE_LIMIT,
- &si->dma_tx_buff_phy, GFP_KERNEL );
+ &si->dma_tx_buff_phy, GFP_KERNEL);
if (!si->dma_tx_buff)
goto err_dma_tx_buff;
@@ -718,8 +723,8 @@ static int pxa_irda_start(struct net_device *dev)
/*
* Now enable the interrupt and start the queue
*/
- enable_irq(IRQ_STUART);
- enable_irq(IRQ_ICP);
+ enable_irq(si->uart_irq);
+ enable_irq(si->icp_irq);
netif_start_queue(dev);
printk(KERN_DEBUG "pxa_ir: irda driver opened\n");
@@ -736,9 +741,9 @@ err_dma_rx_buff:
err_tx_dma:
pxa_free_dma(si->rxdma);
err_rx_dma:
- free_irq(IRQ_ICP, dev);
+ free_irq(si->icp_irq, dev);
err_irq2:
- free_irq(IRQ_STUART, dev);
+ free_irq(si->uart_irq, dev);
err_irq1:
return err;
@@ -758,8 +763,8 @@ static int pxa_irda_stop(struct net_device *dev)
si->irlap = NULL;
}
- free_irq(IRQ_STUART, dev);
- free_irq(IRQ_ICP, dev);
+ free_irq(si->uart_irq, dev);
+ free_irq(si->icp_irq, dev);
pxa_free_dma(si->rxdma);
pxa_free_dma(si->txdma);
@@ -841,14 +846,19 @@ static int pxa_irda_probe(struct platform_device *pdev)
goto err_mem_2;
dev = alloc_irdadev(sizeof(struct pxa_irda));
- if (!dev)
+ if (!dev) {
+ err = -ENOMEM;
goto err_mem_3;
+ }
SET_NETDEV_DEV(dev, &pdev->dev);
si = netdev_priv(dev);
si->dev = &pdev->dev;
si->pdata = pdev->dev.platform_data;
+ si->uart_irq = platform_get_irq(pdev, 0);
+ si->icp_irq = platform_get_irq(pdev, 1);
+
si->sir_clk = clk_get(&pdev->dev, "UARTCLK");
si->fir_clk = clk_get(&pdev->dev, "FICPCLK");
if (IS_ERR(si->sir_clk) || IS_ERR(si->fir_clk)) {
@@ -905,7 +915,7 @@ static int pxa_irda_probe(struct platform_device *pdev)
err = register_netdev(dev);
if (err == 0)
- dev_set_drvdata(&pdev->dev, dev);
+ platform_set_drvdata(pdev, dev);
if (err) {
if (si->pdata->shutdown)
@@ -964,18 +974,7 @@ static struct platform_driver pxa_ir_driver = {
.resume = pxa_irda_resume,
};
-static int __init pxa_irda_init(void)
-{
- return platform_driver_register(&pxa_ir_driver);
-}
-
-static void __exit pxa_irda_exit(void)
-{
- platform_driver_unregister(&pxa_ir_driver);
-}
-
-module_init(pxa_irda_init);
-module_exit(pxa_irda_exit);
+module_platform_driver(pxa_ir_driver);
MODULE_LICENSE("GPL");
MODULE_ALIAS("platform:pxa2xx-ir");
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2025-11-05 00:47:33 +0000