#include "nuvoton-cir.h"
+static const struct nvt_chip nvt_chips[] = {
+ { "w83667hg", NVT_W83667HG },
+ { "NCT6775F", NVT_6775F },
+ { "NCT6776F", NVT_6776F },
+ { "NCT6779D", NVT_6779D },
+};
+
+static inline bool is_w83667hg(struct nvt_dev *nvt)
+{
+ return nvt->chip_ver == NVT_W83667HG;
+}
+
/* write val to config reg */
static inline void nvt_cr_write(struct nvt_dev *nvt, u8 val, u8 reg)
{
pr_cont("\n");
}
+static inline const char *nvt_find_chip(struct nvt_dev *nvt, int id)
+{
+ int i;
+
+ for (i = 0; i < ARRAY_SIZE(nvt_chips); i++)
+ if ((id & SIO_ID_MASK) == nvt_chips[i].chip_ver) {
+ nvt->chip_ver = nvt_chips[i].chip_ver;
+ return nvt_chips[i].name;
+ }
+
+ return NULL;
+}
+
+
/* detect hardware features */
-static int nvt_hw_detect(struct nvt_dev *nvt)
+static void nvt_hw_detect(struct nvt_dev *nvt)
{
- unsigned long flags;
- u8 chip_major, chip_minor;
- char chip_id[12];
- bool chip_unknown = false;
+ const char *chip_name;
+ int chip_id;
nvt_efm_enable(nvt);
/* Check if we're wired for the alternate EFER setup */
- chip_major = nvt_cr_read(nvt, CR_CHIP_ID_HI);
- if (chip_major == 0xff) {
+ nvt->chip_major = nvt_cr_read(nvt, CR_CHIP_ID_HI);
+ if (nvt->chip_major == 0xff) {
nvt->cr_efir = CR_EFIR2;
nvt->cr_efdr = CR_EFDR2;
nvt_efm_enable(nvt);
- chip_major = nvt_cr_read(nvt, CR_CHIP_ID_HI);
+ nvt->chip_major = nvt_cr_read(nvt, CR_CHIP_ID_HI);
}
- chip_minor = nvt_cr_read(nvt, CR_CHIP_ID_LO);
-
- /* these are the known working chip revisions... */
- switch (chip_major) {
- case CHIP_ID_HIGH_667:
- strcpy(chip_id, "w83667hg\0");
- if (chip_minor != CHIP_ID_LOW_667)
- chip_unknown = true;
- break;
- case CHIP_ID_HIGH_677B:
- strcpy(chip_id, "w83677hg\0");
- if (chip_minor != CHIP_ID_LOW_677B2 &&
- chip_minor != CHIP_ID_LOW_677B3)
- chip_unknown = true;
- break;
- case CHIP_ID_HIGH_677C:
- strcpy(chip_id, "w83677hg-c\0");
- if (chip_minor != CHIP_ID_LOW_677C)
- chip_unknown = true;
- break;
- default:
- strcpy(chip_id, "w836x7hg\0");
- chip_unknown = true;
- break;
- }
+ nvt->chip_minor = nvt_cr_read(nvt, CR_CHIP_ID_LO);
+
+ chip_id = nvt->chip_major << 8 | nvt->chip_minor;
+ chip_name = nvt_find_chip(nvt, chip_id);
/* warn, but still let the driver load, if we don't know this chip */
- if (chip_unknown)
- nvt_pr(KERN_WARNING, "%s: unknown chip, id: 0x%02x 0x%02x, "
- "it may not work...", chip_id, chip_major, chip_minor);
+ if (!chip_name)
+ nvt_pr(KERN_WARNING,
+ "unknown chip, id: 0x%02x 0x%02x, it may not work...",
+ nvt->chip_major, nvt->chip_minor);
else
- nvt_dbg("%s: chip id: 0x%02x 0x%02x",
- chip_id, chip_major, chip_minor);
+ nvt_dbg("found %s or compatible: chip id: 0x%02x 0x%02x",
+ chip_name, nvt->chip_major, nvt->chip_minor);
nvt_efm_disable(nvt);
-
- spin_lock_irqsave(&nvt->nvt_lock, flags);
- nvt->chip_major = chip_major;
- nvt->chip_minor = chip_minor;
- spin_unlock_irqrestore(&nvt->nvt_lock, flags);
-
- return 0;
}
static void nvt_cir_ldev_init(struct nvt_dev *nvt)
{
u8 val, psreg, psmask, psval;
- if (nvt->chip_major == CHIP_ID_HIGH_667) {
+ if (is_w83667hg(nvt)) {
psreg = CR_MULTIFUNC_PIN_SEL;
psmask = MULTIFUNC_PIN_SEL_MASK;
psval = MULTIFUNC_ENABLE_CIR | MULTIFUNC_ENABLE_CIRWB;
if (!status) {
nvt_dbg_verbose("%s exiting, IRSTS 0x0", __func__);
nvt_cir_reg_write(nvt, 0xff, CIR_IRSTS);
- return IRQ_RETVAL(IRQ_NONE);
+ return IRQ_NONE;
}
/* ack/clear all irq flags we've got */
iren = nvt_cir_reg_read(nvt, CIR_IREN);
if (!iren) {
nvt_dbg_verbose("%s exiting, CIR not enabled", __func__);
- return IRQ_RETVAL(IRQ_NONE);
+ return IRQ_NONE;
}
if (debug)
}
nvt_dbg_verbose("%s done", __func__);
- return IRQ_RETVAL(IRQ_HANDLED);
+ return IRQ_HANDLED;
}
/* Interrupt service routine for CIR Wake */
status = nvt_cir_wake_reg_read(nvt, CIR_WAKE_IRSTS);
if (!status)
- return IRQ_RETVAL(IRQ_NONE);
+ return IRQ_NONE;
if (status & CIR_WAKE_IRSTS_IR_PENDING)
nvt_clear_cir_wake_fifo(nvt);
iren = nvt_cir_wake_reg_read(nvt, CIR_WAKE_IREN);
if (!iren) {
nvt_dbg_wake("%s exiting, wake not enabled", __func__);
- return IRQ_RETVAL(IRQ_HANDLED);
+ return IRQ_HANDLED;
}
if ((status & CIR_WAKE_IRSTS_PE) &&
}
nvt_dbg_wake("%s done", __func__);
- return IRQ_RETVAL(IRQ_HANDLED);
+ return IRQ_HANDLED;
}
static void nvt_enable_cir(struct nvt_dev *nvt)
struct rc_dev *rdev;
int ret = -ENOMEM;
- nvt = kzalloc(sizeof(struct nvt_dev), GFP_KERNEL);
+ nvt = devm_kzalloc(&pdev->dev, sizeof(struct nvt_dev), GFP_KERNEL);
if (!nvt)
return ret;
init_waitqueue_head(&nvt->tx.queue);
- ret = nvt_hw_detect(nvt);
- if (ret)
- goto exit_free_dev_rdev;
+ nvt_hw_detect(nvt);
/* Initialize CIR & CIR Wake Logical Devices */
nvt_efm_enable(nvt);
ret = -EBUSY;
/* now claim resources */
- if (!request_region(nvt->cir_addr,
+ if (!devm_request_region(&pdev->dev, nvt->cir_addr,
CIR_IOREG_LENGTH, NVT_DRIVER_NAME))
goto exit_unregister_device;
- if (request_irq(nvt->cir_irq, nvt_cir_isr, IRQF_SHARED,
- NVT_DRIVER_NAME, (void *)nvt))
- goto exit_release_cir_addr;
+ if (devm_request_irq(&pdev->dev, nvt->cir_irq, nvt_cir_isr,
+ IRQF_SHARED, NVT_DRIVER_NAME, (void *)nvt))
+ goto exit_unregister_device;
- if (!request_region(nvt->cir_wake_addr,
+ if (!devm_request_region(&pdev->dev, nvt->cir_wake_addr,
CIR_IOREG_LENGTH, NVT_DRIVER_NAME))
- goto exit_free_irq;
+ goto exit_unregister_device;
- if (request_irq(nvt->cir_wake_irq, nvt_cir_wake_isr, IRQF_SHARED,
- NVT_DRIVER_NAME, (void *)nvt))
- goto exit_release_cir_wake_addr;
+ if (devm_request_irq(&pdev->dev, nvt->cir_wake_irq,
+ nvt_cir_wake_isr, IRQF_SHARED,
+ NVT_DRIVER_NAME, (void *)nvt))
+ goto exit_unregister_device;
device_init_wakeup(&pdev->dev, true);
return 0;
-exit_release_cir_wake_addr:
- release_region(nvt->cir_wake_addr, CIR_IOREG_LENGTH);
-exit_free_irq:
- free_irq(nvt->cir_irq, nvt);
-exit_release_cir_addr:
- release_region(nvt->cir_addr, CIR_IOREG_LENGTH);
exit_unregister_device:
rc_unregister_device(rdev);
rdev = NULL;
exit_free_dev_rdev:
rc_free_device(rdev);
- kfree(nvt);
return ret;
}
nvt_enable_wake(nvt);
spin_unlock_irqrestore(&nvt->nvt_lock, flags);
- /* free resources */
- free_irq(nvt->cir_irq, nvt);
- free_irq(nvt->cir_wake_irq, nvt);
- release_region(nvt->cir_addr, CIR_IOREG_LENGTH);
- release_region(nvt->cir_wake_addr, CIR_IOREG_LENGTH);
-
rc_unregister_device(nvt->rdev);
-
- kfree(nvt);
}
static int nvt_suspend(struct pnp_dev *pdev, pm_message_t state)
projects / deliverable / linux.git / blobdiff