diff options
| -rw-r--r-- | drivers/media/video/cx23885/cx23885-core.c | 82 | ||||
| -rw-r--r-- | drivers/media/video/cx23885/cx23885.h | 16 |
2 files changed, 98 insertions, 0 deletions
diff --git a/drivers/media/video/cx23885/cx23885-core.c b/drivers/media/video/cx23885/cx23885-core.c index 9e4d37eb918..eb5e3412d39 100644 --- a/drivers/media/video/cx23885/cx23885-core.c +++ b/drivers/media/video/cx23885/cx23885-core.c @@ -1733,6 +1733,88 @@ out: return IRQ_RETVAL(handled); } +int encoder_on_portb(struct cx23885_dev *dev) +{ + return cx23885_boards[dev->board].portb == CX23885_MPEG_ENCODER; +} + +int encoder_on_portc(struct cx23885_dev *dev) +{ + return cx23885_boards[dev->board].portc == CX23885_MPEG_ENCODER; +} + +/* Mask represents 32 different GPIOs, GPIO's are split into multiple + * registers depending on the board configuration (and whether the + * 417 encoder (wi it's own GPIO's) are present. Each GPIO bit will + * be pushed into the correct hardware register, regardless of the + * physical location. Certain registers are shared so we sanity check + * and report errors if we think we're tampering with a GPIo that might + * be assigned to the encoder (and used for the host bus). + * + * GPIO 2 thru 0 - On the cx23885 bridge + * GPIO 18 thru 3 - On the cx23417 host bus interface + * GPIO 23 thru 19 - On the cx25840 a/v core + */ +void cx23885_gpio_set(struct cx23885_dev *dev, u32 mask) +{ + if (mask & 0x7) + cx_set(GP0_IO, mask & 0x7); + + if (mask & 0x0007fff8) { + if (encoder_on_portb(dev) || encoder_on_portc(dev)) + printk(KERN_ERR + "%s: Setting GPIO on encoder ports\n", + dev->name); + cx_set(MC417_RWD, (mask & 0x0007fff8) >> 3); + } + + /* TODO: 23-19 */ + if (mask & 0x00f80000) + printk(KERN_INFO "%s: Unsupported\n", dev->name); +} + +void cx23885_gpio_clear(struct cx23885_dev *dev, u32 mask) +{ + if (mask & 0x00000007) + cx_clear(GP0_IO, mask & 0x7); + + if (mask & 0x0007fff8) { + if (encoder_on_portb(dev) || encoder_on_portc(dev)) + printk(KERN_ERR + "%s: Clearing GPIO moving on encoder ports\n", + dev->name); + cx_clear(MC417_RWD, (mask & 0x7fff8) >> 3); + } + + /* TODO: 23-19 */ + if (mask & 0x00f80000) + printk(KERN_INFO "%s: Unsupported\n", dev->name); +} + +void cx23885_gpio_enable(struct cx23885_dev *dev, u32 mask, int asoutput) +{ + if ((mask & 0x00000007) && asoutput) + cx_set(GP0_IO, (mask & 0x7) << 16); + else if ((mask & 0x00000007) && !asoutput) + cx_clear(GP0_IO, (mask & 0x7) << 16); + + if (mask & 0x0007fff8) { + if (encoder_on_portb(dev) || encoder_on_portc(dev)) + printk(KERN_ERR + "%s: Enabling GPIO on encoder ports\n", + dev->name); + } + + /* MC417_OEN is active low for output, write 1 for an input */ + if ((mask & 0x0007fff8) && asoutput) + cx_clear(MC417_OEN, (mask & 0x7fff8) >> 3); + + else if ((mask & 0x0007fff8) && !asoutput) + cx_set(MC417_OEN, (mask & 0x7fff8) >> 3); + + /* TODO: 23-19 */ +} + static int __devinit cx23885_initdev(struct pci_dev *pci_dev, const struct pci_device_id *pci_id) { diff --git a/drivers/media/video/cx23885/cx23885.h b/drivers/media/video/cx23885/cx23885.h index 85642831ea8..d9b03f83fa3 100644 --- a/drivers/media/video/cx23885/cx23885.h +++ b/drivers/media/video/cx23885/cx23885.h @@ -72,6 +72,17 @@ #define CX23885_BOARD_DVBWORLD_2005 16 #define CX23885_BOARD_NETUP_DUAL_DVBS2_CI 17 +#define GPIO_0 0x00000001 +#define GPIO_1 0x00000002 +#define GPIO_2 0x00000004 +#define GPIO_3 0x00000008 +#define GPIO_4 0x00000010 +#define GPIO_5 0x00000020 +#define GPIO_6 0x00000040 +#define GPIO_7 0x00000080 +#define GPIO_8 0x00000100 +#define GPIO_9 0x00000200 + /* Currently unsupported by the driver: PAL/H, NTSC/Kr, SECAM B/G/H/LC */ #define CX23885_NORMS (\ V4L2_STD_NTSC_M | V4L2_STD_NTSC_M_JP | V4L2_STD_NTSC_443 | \ @@ -422,6 +433,11 @@ extern int cx23885_restart_queue(struct cx23885_tsport *port, extern void cx23885_wakeup(struct cx23885_tsport *port, struct cx23885_dmaqueue *q, u32 count); +extern void cx23885_gpio_set(struct cx23885_dev *dev, u32 mask); +extern void cx23885_gpio_clear(struct cx23885_dev *dev, u32 mask); +extern void cx23885_gpio_enable(struct cx23885_dev *dev, u32 mask, + int asoutput); + /* ----------------------------------------------------------- */ /* cx23885-cards.c */ |