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linux: add support for more nuvoton remote receivers

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Signed-off-by: Stephan Raue <stephan@openelec.tv>
This commit is contained in:
Stephan Raue 2011-04-13 21:51:40 +02:00
parent 6786e7f837
commit 57a437ad98
3 changed files with 152 additions and 14 deletions
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89
packages/linux/patches/linux-2.6.39-rc3-054_nuvoton-cir-only-warn-about-unknown-chips.patch Normal file
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@ -0,0 +1,89 @@
diff --git a/drivers/media/rc/nuvoton-cir.c b/drivers/media/rc/nuvoton-cir.c
index d4d6449..bc5c1e2 100644
--- a/drivers/media/rc/nuvoton-cir.c
+++ b/drivers/media/rc/nuvoton-cir.c
@@ -37,8 +37,6 @@
#include "nuvoton-cir.h"
-static char *chip_id = "w836x7hg";
-
/* write val to config reg */
static inline void nvt_cr_write(struct nvt_dev *nvt, u8 val, u8 reg)
{
@@ -233,6 +231,8 @@ static int nvt_hw_detect(struct nvt_dev *nvt)
unsigned long flags;
u8 chip_major, chip_minor;
int ret = 0;
+ char chip_id[12];
+ bool chip_unknown = false;
nvt_efm_enable(nvt);
@@ -246,15 +246,39 @@ static int nvt_hw_detect(struct nvt_dev *nvt)
}
chip_minor = nvt_cr_read(nvt, CR_CHIP_ID_LO);
- nvt_dbg("%s: chip id: 0x%02x 0x%02x", chip_id, chip_major, chip_minor);
- if (chip_major != CHIP_ID_HIGH ||
- (chip_minor != CHIP_ID_LOW && chip_minor != CHIP_ID_LOW2)) {
- nvt_pr(KERN_ERR, "%s: unsupported chip, id: 0x%02x 0x%02x",
- chip_id, chip_major, chip_minor);
- ret = -ENODEV;
+ /* 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;
}
+ /* 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);
+ else
+ nvt_dbg("%s: chip id: 0x%02x 0x%02x",
+ chip_id, chip_major, chip_minor);
+
nvt_efm_disable(nvt);
spin_lock_irqsave(&nvt->nvt_lock, flags);
diff --git a/drivers/media/rc/nuvoton-cir.h b/drivers/media/rc/nuvoton-cir.h
index 048135e..cc8cee3 100644
--- a/drivers/media/rc/nuvoton-cir.h
+++ b/drivers/media/rc/nuvoton-cir.h
@@ -330,9 +330,13 @@ struct nvt_dev {
#define EFER_EFM_DISABLE 0xaa
/* Chip IDs found in CR_CHIP_ID_{HI,LO} */
-#define CHIP_ID_HIGH 0xb4
-#define CHIP_ID_LOW 0x72
-#define CHIP_ID_LOW2 0x73
+#define CHIP_ID_HIGH_667 0xa5
+#define CHIP_ID_HIGH_677B 0xb4
+#define CHIP_ID_HIGH_677C 0xc3
+#define CHIP_ID_LOW_667 0x13
+#define CHIP_ID_LOW_677B2 0x72
+#define CHIP_ID_LOW_677B3 0x73
+#define CHIP_ID_LOW_677C 0x33
/* Config regs we need to care about */
#define CR_SOFTWARE_RESET 0x02

14
packages/linux/patches/linux-2.6.39-rc3-054_nuvoton_dont_fail_with_unsupported_chip_versions-0.1.diff
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@ -1,14 +0,0 @@
diff -Naur linux-2.6.38.2/drivers/media/rc/nuvoton-cir.c linux-2.6.38.2.patch/drivers/media/rc/nuvoton-cir.c
--- linux-2.6.38.2/drivers/media/rc/nuvoton-cir.c 2011-03-27 20:37:20.000000000 +0200
+++ linux-2.6.38.2.patch/drivers/media/rc/nuvoton-cir.c 2011-04-11 21:02:39.897028275 +0200
@@ -250,9 +250,8 @@
if (chip_major != CHIP_ID_HIGH ||
(chip_minor != CHIP_ID_LOW && chip_minor != CHIP_ID_LOW2)) {
- nvt_pr(KERN_ERR, "%s: unsupported chip, id: 0x%02x 0x%02x",
+ nvt_pr(KERN_WARNING, "warning %s: unsupported chip revision, id: 0x%02x 0x%02x, it may not work",
chip_id, chip_major, chip_minor);
- ret = -ENODEV;
}
nvt_efm_disable(nvt);

63
packages/linux/patches/linux-2.6.39-rc3-055_nuvoton-cir-enable-CIR-on-w83667hg-chip-variant.patch Normal file
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@ -0,0 +1,63 @@
diff --git a/drivers/media/rc/nuvoton-cir.c b/drivers/media/rc/nuvoton-cir.c
index bc5c1e2..5d93384 100644
--- a/drivers/media/rc/nuvoton-cir.c
+++ b/drivers/media/rc/nuvoton-cir.c
@@ -291,13 +291,23 @@ static int nvt_hw_detect(struct nvt_dev *nvt)
static void nvt_cir_ldev_init(struct nvt_dev *nvt)
{
- u8 val;
+ u8 val, psreg, psmask, psval;
+
+ if (nvt->chip_major == CHIP_ID_HIGH_667) {
+ psreg = CR_MULTIFUNC_PIN_SEL;
+ psmask = MULTIFUNC_PIN_SEL_MASK;
+ psval = MULTIFUNC_ENABLE_CIR | MULTIFUNC_ENABLE_CIRWB;
+ } else {
+ psreg = CR_OUTPUT_PIN_SEL;
+ psmask = OUTPUT_PIN_SEL_MASK;
+ psval = OUTPUT_ENABLE_CIR | OUTPUT_ENABLE_CIRWB;
+ }
- /* output pin selection (Pin95=CIRRX, Pin96=CIRTX1, WB enabled */
- val = nvt_cr_read(nvt, CR_OUTPUT_PIN_SEL);
- val &= OUTPUT_PIN_SEL_MASK;
- val |= (OUTPUT_ENABLE_CIR | OUTPUT_ENABLE_CIRWB);
- nvt_cr_write(nvt, val, CR_OUTPUT_PIN_SEL);
+ /* output pin selection: enable CIR, with WB sensor enabled */
+ val = nvt_cr_read(nvt, psreg);
+ val &= psmask;
+ val |= psval;
+ nvt_cr_write(nvt, val, psreg);
/* Select CIR logical device and enable */
nvt_select_logical_dev(nvt, LOGICAL_DEV_CIR);
diff --git a/drivers/media/rc/nuvoton-cir.h b/drivers/media/rc/nuvoton-cir.h
index cc8cee3..379795d 100644
--- a/drivers/media/rc/nuvoton-cir.h
+++ b/drivers/media/rc/nuvoton-cir.h
@@ -345,6 +345,7 @@ struct nvt_dev {
#define CR_CHIP_ID_LO 0x21
#define CR_DEV_POWER_DOWN 0x22 /* bit 2 is CIR power, default power on */
#define CR_OUTPUT_PIN_SEL 0x27
+#define CR_MULTIFUNC_PIN_SEL 0x2c
#define CR_LOGICAL_DEV_EN 0x30 /* valid for all logical devices */
/* next three regs valid for both the CIR and CIR_WAKE logical devices */
#define CR_CIR_BASE_ADDR_HI 0x60
@@ -368,10 +369,16 @@ struct nvt_dev {
#define CIR_INTR_MOUSE_IRQ_BIT 0x80
#define PME_INTR_CIR_PASS_BIT 0x08
+/* w83677hg CIR pin config */
#define OUTPUT_PIN_SEL_MASK 0xbc
#define OUTPUT_ENABLE_CIR 0x01 /* Pin95=CIRRX, Pin96=CIRTX1 */
#define OUTPUT_ENABLE_CIRWB 0x40 /* enable wide-band sensor */
+/* w83667hg CIR pin config */
+#define MULTIFUNC_PIN_SEL_MASK 0x1f
+#define MULTIFUNC_ENABLE_CIR 0x80 /* Pin75=CIRRX, Pin76=CIRTX1 */
+#define MULTIFUNC_ENABLE_CIRWB 0x20 /* enable wide-band sensor */
+
/* MCE CIR signal length, related on sample period */
/* MCE CIR controller signal length: about 43ms