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https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
synced 2024-08-21 16:29:59 +00:00
[IRDA]: ali-ircc: using device model power management
This patch gets rid of the old power management code and now uses the device model for the ali-ircc driver. Signed-off-by: Samuel Ortiz <samuel@sortiz.org> Signed-off-by: David S. Miller <davem@davemloft.net>
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898b1d16f8
1 changed files with 61 additions and 65 deletions
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@ -34,14 +34,12 @@
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#include <linux/rtnetlink.h>
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#include <linux/serial_reg.h>
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#include <linux/dma-mapping.h>
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#include <linux/platform_device.h>
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#include <asm/io.h>
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#include <asm/dma.h>
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#include <asm/byteorder.h>
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#include <linux/pm.h>
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#include <linux/pm_legacy.h>
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#include <net/irda/wrapper.h>
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#include <net/irda/irda.h>
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#include <net/irda/irda_device.h>
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@ -51,7 +49,19 @@
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#define CHIP_IO_EXTENT 8
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#define BROKEN_DONGLE_ID
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static char *driver_name = "ali-ircc";
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#define ALI_IRCC_DRIVER_NAME "ali-ircc"
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/* Power Management */
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static int ali_ircc_suspend(struct platform_device *dev, pm_message_t state);
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static int ali_ircc_resume(struct platform_device *dev);
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static struct platform_driver ali_ircc_driver = {
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.suspend = ali_ircc_suspend,
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.resume = ali_ircc_resume,
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.driver = {
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.name = ALI_IRCC_DRIVER_NAME,
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},
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};
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/* Module parameters */
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static int qos_mtt_bits = 0x07; /* 1 ms or more */
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@ -97,10 +107,7 @@ static int ali_ircc_is_receiving(struct ali_ircc_cb *self);
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static int ali_ircc_net_open(struct net_device *dev);
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static int ali_ircc_net_close(struct net_device *dev);
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static int ali_ircc_net_ioctl(struct net_device *dev, struct ifreq *rq, int cmd);
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static int ali_ircc_pmproc(struct pm_dev *dev, pm_request_t rqst, void *data);
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static void ali_ircc_change_speed(struct ali_ircc_cb *self, __u32 baud);
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static void ali_ircc_suspend(struct ali_ircc_cb *self);
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static void ali_ircc_wakeup(struct ali_ircc_cb *self);
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static struct net_device_stats *ali_ircc_net_get_stats(struct net_device *dev);
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/* SIR function */
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@ -145,6 +152,14 @@ static int __init ali_ircc_init(void)
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int i = 0;
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IRDA_DEBUG(2, "%s(), ---------------- Start ----------------\n", __FUNCTION__);
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ret = platform_driver_register(&ali_ircc_driver);
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if (ret) {
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IRDA_ERROR("%s, Can't register driver!\n",
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ALI_IRCC_DRIVER_NAME);
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return ret;
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}
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/* Probe for all the ALi chipsets we know about */
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for (chip= chips; chip->name; chip++, i++)
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@ -214,6 +229,10 @@ static int __init ali_ircc_init(void)
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}
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IRDA_DEBUG(2, "%s(), ----------------- End -----------------\n", __FUNCTION__);
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if (ret)
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platform_driver_unregister(&ali_ircc_driver);
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return ret;
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}
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@ -228,14 +247,14 @@ static void __exit ali_ircc_cleanup(void)
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int i;
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IRDA_DEBUG(2, "%s(), ---------------- Start ----------------\n", __FUNCTION__);
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pm_unregister_all(ali_ircc_pmproc);
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for (i=0; i < 4; i++) {
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if (dev_self[i])
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ali_ircc_close(dev_self[i]);
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}
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platform_driver_unregister(&ali_ircc_driver);
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IRDA_DEBUG(2, "%s(), ----------------- End -----------------\n", __FUNCTION__);
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}
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@ -249,7 +268,6 @@ static int ali_ircc_open(int i, chipio_t *info)
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{
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struct net_device *dev;
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struct ali_ircc_cb *self;
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struct pm_dev *pmdev;
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int dongle_id;
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int err;
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@ -284,7 +302,8 @@ static int ali_ircc_open(int i, chipio_t *info)
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self->io.fifo_size = 16; /* SIR: 16, FIR: 32 Benjamin 2000/11/1 */
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/* Reserve the ioports that we need */
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if (!request_region(self->io.fir_base, self->io.fir_ext, driver_name)) {
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if (!request_region(self->io.fir_base, self->io.fir_ext,
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ALI_IRCC_DRIVER_NAME)) {
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IRDA_WARNING("%s(), can't get iobase of 0x%03x\n", __FUNCTION__,
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self->io.fir_base);
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err = -ENODEV;
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@ -354,13 +373,10 @@ static int ali_ircc_open(int i, chipio_t *info)
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/* Check dongle id */
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dongle_id = ali_ircc_read_dongle_id(i, info);
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IRDA_MESSAGE("%s(), %s, Found dongle: %s\n", __FUNCTION__, driver_name, dongle_types[dongle_id]);
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IRDA_MESSAGE("%s(), %s, Found dongle: %s\n", __FUNCTION__,
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ALI_IRCC_DRIVER_NAME, dongle_types[dongle_id]);
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self->io.dongle_id = dongle_id;
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pmdev = pm_register(PM_SYS_DEV, PM_SYS_IRDA, ali_ircc_pmproc);
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if (pmdev)
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pmdev->data = self;
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IRDA_DEBUG(2, "%s(), ----------------- End -----------------\n", __FUNCTION__);
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@ -548,12 +564,11 @@ static int ali_ircc_setup(chipio_t *info)
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/* Should be 0x00 in the M1535/M1535D */
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if(version != 0x00)
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{
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IRDA_ERROR("%s, Wrong chip version %02x\n", driver_name, version);
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IRDA_ERROR("%s, Wrong chip version %02x\n",
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ALI_IRCC_DRIVER_NAME, version);
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return -1;
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}
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// IRDA_MESSAGE("%s, Found chip at base=0x%03x\n", driver_name, info->cfg_base);
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/* Set FIR FIFO Threshold Register */
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switch_bank(iobase, BANK1);
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outb(RX_FIFO_Threshold, iobase+FIR_FIFO_TR);
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@ -583,7 +598,8 @@ static int ali_ircc_setup(chipio_t *info)
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/* Switch to SIR space */
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FIR2SIR(iobase);
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IRDA_MESSAGE("%s, driver loaded (Benjamin Kong)\n", driver_name);
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IRDA_MESSAGE("%s, driver loaded (Benjamin Kong)\n",
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ALI_IRCC_DRIVER_NAME);
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/* Enable receive interrupts */
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// outb(UART_IER_RDI, iobase+UART_IER); //benjamin 2000/11/23 01:25PM
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@ -647,7 +663,8 @@ static irqreturn_t ali_ircc_interrupt(int irq, void *dev_id,
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IRDA_DEBUG(2, "%s(), ---------------- Start ----------------\n", __FUNCTION__);
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if (!dev) {
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IRDA_WARNING("%s: irq %d for unknown device.\n", driver_name, irq);
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IRDA_WARNING("%s: irq %d for unknown device.\n",
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ALI_IRCC_DRIVER_NAME, irq);
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return IRQ_NONE;
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}
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@ -1328,7 +1345,8 @@ static int ali_ircc_net_open(struct net_device *dev)
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/* Request IRQ and install Interrupt Handler */
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if (request_irq(self->io.irq, ali_ircc_interrupt, 0, dev->name, dev))
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{
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IRDA_WARNING("%s, unable to allocate irq=%d\n", driver_name,
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IRDA_WARNING("%s, unable to allocate irq=%d\n",
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ALI_IRCC_DRIVER_NAME,
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self->io.irq);
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return -EAGAIN;
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}
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@ -1338,7 +1356,8 @@ static int ali_ircc_net_open(struct net_device *dev)
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* failure.
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*/
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if (request_dma(self->io.dma, dev->name)) {
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IRDA_WARNING("%s, unable to allocate dma=%d\n", driver_name,
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IRDA_WARNING("%s, unable to allocate dma=%d\n",
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ALI_IRCC_DRIVER_NAME,
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self->io.dma);
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free_irq(self->io.irq, self);
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return -EAGAIN;
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@ -2108,60 +2127,37 @@ static struct net_device_stats *ali_ircc_net_get_stats(struct net_device *dev)
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return &self->stats;
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}
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static void ali_ircc_suspend(struct ali_ircc_cb *self)
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static int ali_ircc_suspend(struct platform_device *dev, pm_message_t state)
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{
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IRDA_DEBUG(2, "%s(), ---------------- Start ----------------\n", __FUNCTION__ );
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struct ali_ircc_cb *self = platform_get_drvdata(dev);
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IRDA_MESSAGE("%s, Suspending\n", driver_name);
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IRDA_MESSAGE("%s, Suspending\n", ALI_IRCC_DRIVER_NAME);
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if (self->io.suspended)
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return;
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return 0;
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ali_ircc_net_close(self->netdev);
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self->io.suspended = 1;
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IRDA_DEBUG(2, "%s(), ----------------- End ------------------\n", __FUNCTION__ );
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}
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static void ali_ircc_wakeup(struct ali_ircc_cb *self)
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{
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IRDA_DEBUG(2, "%s(), ---------------- Start ----------------\n", __FUNCTION__ );
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if (!self->io.suspended)
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return;
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ali_ircc_net_open(self->netdev);
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IRDA_MESSAGE("%s, Waking up\n", driver_name);
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self->io.suspended = 0;
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IRDA_DEBUG(2, "%s(), ----------------- End ------------------\n", __FUNCTION__ );
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}
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static int ali_ircc_pmproc(struct pm_dev *dev, pm_request_t rqst, void *data)
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{
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struct ali_ircc_cb *self = (struct ali_ircc_cb*) dev->data;
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IRDA_DEBUG(2, "%s(), ---------------- Start ----------------\n", __FUNCTION__ );
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if (self) {
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switch (rqst) {
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case PM_SUSPEND:
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ali_ircc_suspend(self);
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break;
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case PM_RESUME:
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ali_ircc_wakeup(self);
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break;
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}
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}
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IRDA_DEBUG(2, "%s(), ----------------- End ------------------\n", __FUNCTION__ );
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return 0;
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}
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static int ali_ircc_resume(struct platform_device *dev)
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{
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struct ali_ircc_cb *self = platform_get_drvdata(dev);
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if (!self->io.suspended)
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return 0;
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ali_ircc_net_open(self->netdev);
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IRDA_MESSAGE("%s, Waking up\n", ALI_IRCC_DRIVER_NAME);
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self->io.suspended = 0;
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return 0;
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}
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/* ALi Chip Function */
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