Add s_io_pin_config core subdev op for the CX2388[578] AV cores.
This is complete for IR_RX, IR_TX, GPIOs 16,19-23, and IRQ_N.
It likely needs work for the I2S signal direction.
Signed-off-by: Andy Walls <awalls@xxxxxxxxxxxxxxxx>
---
drivers/media/video/cx25840/cx25840-core.c | 153 ++++++++++++++++++++++++++++
include/media/cx25840.h | 75 ++++++++++++++
2 files changed, 228 insertions(+), 0 deletions(-)
diff --git a/drivers/media/video/cx25840/cx25840-core.c b/drivers/media/video/cx25840/cx25840-core.c
index 4f908fa..46a046d 100644
--- a/drivers/media/video/cx25840/cx25840-core.c
+++ b/drivers/media/video/cx25840/cx25840-core.c
@@ -144,6 +144,158 @@ static int set_input(struct i2c_client *client, enum cx25840_video_input vid_inp
/* ----------------------------------------------------------------------- */
+static int cx23885_s_io_pin_config(struct v4l2_subdev *sd, size_t n,
+ struct v4l2_subdev_io_pin_config *p)
+{
+ struct i2c_client *client = v4l2_get_subdevdata(sd);
+ int i;
+ u32 pin_ctrl;
+ u8 gpio_oe, gpio_data, strength;
+
+ pin_ctrl = cx25840_read4(client, 0x120);
+ gpio_oe = cx25840_read(client, 0x160);
+ gpio_data = cx25840_read(client, 0x164);
+
+ for (i = 0; i < n; i++) {
+ strength = p[i].strength;
+ if (strength > CX25840_PIN_DRIVE_FAST)
+ strength = CX25840_PIN_DRIVE_FAST;
+
+ switch (p[i].pin) {
+ case CX23885_PIN_IRQ_N_GPIO16:
+ if (p[i].function != CX23885_PAD_IRQ_N) {
+ /* GPIO16 */
+ pin_ctrl &= ~(0x1 << 25);
+ } else {
+ /* IRQ_N */
+ if (p[i].flags &
+ (V4L2_SUBDEV_IO_PIN_DISABLE |
+ V4L2_SUBDEV_IO_PIN_INPUT)) {
+ pin_ctrl &= ~(0x1 << 25);
+ } else {
+ pin_ctrl |= (0x1 << 25);
+ }
+ if (p[i].flags &
+ V4L2_SUBDEV_IO_PIN_ACTIVE_LOW) {
+ pin_ctrl &= ~(0x1 << 24);
+ } else {
+ pin_ctrl |= (0x1 << 24);
+ }
+ }
+ break;
+ case CX23885_PIN_IR_RX_GPIO19:
+ if (p[i].function != CX23885_PAD_GPIO19) {
+ /* IR_RX */
+ gpio_oe |= (0x1 << 0);
+ pin_ctrl &= ~(0x3 << 18);
+ pin_ctrl |= (strength << 18);
+ } else {
+ /* GPIO19 */
+ gpio_oe &= ~(0x1 << 0);
+ if (p[i].flags & V4L2_SUBDEV_IO_PIN_SET_VALUE) {
+ gpio_data &= ~(0x1 << 0);
+ gpio_data |= ((p[i].value & 0x1) << 0);
+ }
+ pin_ctrl &= ~(0x3 << 12);
+ pin_ctrl |= (strength << 12);
+ }
+ break;
+ case CX23885_PIN_IR_TX_GPIO20:
+ if (p[i].function != CX23885_PAD_GPIO20) {
+ /* IR_TX */
+ gpio_oe |= (0x1 << 1);
+ if (p[i].flags & V4L2_SUBDEV_IO_PIN_DISABLE)
+ pin_ctrl &= ~(0x1 << 10);
+ else
+ pin_ctrl |= (0x1 << 10);
+ pin_ctrl &= ~(0x3 << 18);
+ pin_ctrl |= (strength << 18);
+ } else {
+ /* GPIO20 */
+ gpio_oe &= ~(0x1 << 1);
+ if (p[i].flags & V4L2_SUBDEV_IO_PIN_SET_VALUE) {
+ gpio_data &= ~(0x1 << 1);
+ gpio_data |= ((p[i].value & 0x1) << 1);
+ }
+ pin_ctrl &= ~(0x3 << 12);
+ pin_ctrl |= (strength << 12);
+ }
+ break;
+ case CX23885_PIN_I2S_SDAT_GPIO21:
+ if (p[i].function != CX23885_PAD_GPIO21) {
+ /* I2S_SDAT */
+ /* TODO: Input or Output config */
+ gpio_oe |= (0x1 << 2);
+ pin_ctrl &= ~(0x3 << 22);
+ pin_ctrl |= (strength << 22);
+ } else {
+ /* GPIO21 */
+ gpio_oe &= ~(0x1 << 2);
+ if (p[i].flags & V4L2_SUBDEV_IO_PIN_SET_VALUE) {
+ gpio_data &= ~(0x1 << 2);
+ gpio_data |= ((p[i].value & 0x1) << 2);
+ }
+ pin_ctrl &= ~(0x3 << 12);
+ pin_ctrl |= (strength << 12);
+ }
+ break;
+ case CX23885_PIN_I2S_WCLK_GPIO22:
+ if (p[i].function != CX23885_PAD_GPIO22) {
+ /* I2S_WCLK */
+ /* TODO: Input or Output config */
+ gpio_oe |= (0x1 << 3);
+ pin_ctrl &= ~(0x3 << 22);
+ pin_ctrl |= (strength << 22);
+ } else {
+ /* GPIO22 */
+ gpio_oe &= ~(0x1 << 3);
+ if (p[i].flags & V4L2_SUBDEV_IO_PIN_SET_VALUE) {
+ gpio_data &= ~(0x1 << 3);
+ gpio_data |= ((p[i].value & 0x1) << 3);
+ }
+ pin_ctrl &= ~(0x3 << 12);
+ pin_ctrl |= (strength << 12);
+ }
+ break;
+ case CX23885_PIN_I2S_BCLK_GPIO23:
+ if (p[i].function != CX23885_PAD_GPIO23) {
+ /* I2S_BCLK */
+ /* TODO: Input or Output config */
+ gpio_oe |= (0x1 << 4);
+ pin_ctrl &= ~(0x3 << 22);
+ pin_ctrl |= (strength << 22);
+ } else {
+ /* GPIO23 */
+ gpio_oe &= ~(0x1 << 4);
+ if (p[i].flags & V4L2_SUBDEV_IO_PIN_SET_VALUE) {
+ gpio_data &= ~(0x1 << 4);
+ gpio_data |= ((p[i].value & 0x1) << 4);
+ }
+ pin_ctrl &= ~(0x3 << 12);
+ pin_ctrl |= (strength << 12);
+ }
+ break;
+ }
+ }
+
+ cx25840_write(client, 0x164, gpio_data);
+ cx25840_write(client, 0x160, gpio_oe);
+ cx25840_write4(client, 0x120, pin_ctrl);
+ return 0;
+}
+
+static int common_s_io_pin_config(struct v4l2_subdev *sd, size_t n,
+ struct v4l2_subdev_io_pin_config *pincfg)
+{
+ struct cx25840_state *state = to_state(sd);
+
+ if (is_cx2388x(state))
+ return cx23885_s_io_pin_config(sd, n, pincfg);
+ return 0;
+}
+
+/* ----------------------------------------------------------------------- */
+
static void init_dll1(struct i2c_client *client)
{
/* This is the Hauppauge sequence used to
@@ -1610,6 +1762,7 @@ static const struct v4l2_subdev_core_ops cx25840_core_ops = {
.s_std = cx25840_s_std,
.reset = cx25840_reset,
.load_fw = cx25840_load_fw,
+ .s_io_pin_config = common_s_io_pin_config,
#ifdef CONFIG_VIDEO_ADV_DEBUG
.g_register = cx25840_g_register,
.s_register = cx25840_s_register,
diff --git a/include/media/cx25840.h b/include/media/cx25840.h
index 0b0cb17..1bba39e 100644
--- a/include/media/cx25840.h
+++ b/include/media/cx25840.h
@@ -97,4 +97,79 @@ enum cx25840_audio_input {
CX25840_AUDIO8,
};
+enum cx25840_io_pin {
+ CX25840_PIN_DVALID_PRGM0 = 0,
+ CX25840_PIN_FIELD_PRGM1,
+ CX25840_PIN_HRESET_PRGM2,
+ CX25840_PIN_VRESET_HCTL_PRGM3,
+ CX25840_PIN_IRQ_N_PRGM4,
+ CX25840_PIN_IR_TX_PRGM6,
+ CX25840_PIN_IR_RX_PRGM5,
+ CX25840_PIN_GPIO0_PRGM8,
+ CX25840_PIN_GPIO1_PRGM9,
+ CX25840_PIN_SA_SDIN, /* Alternate GP Input only */
+ CX25840_PIN_SA_SDOUT, /* Alternate GP Input only */
+ CX25840_PIN_PLL_CLK_PRGM7,
+ CX25840_PIN_CHIP_SEL_VIPCLK, /* Output only */
+};
+
+enum cx25840_io_pad {
+ /* Output pads */
+ CX25840_PAD_DEFAULT = 0,
+ CX25840_PAD_ACTIVE,
+ CX25840_PAD_VACTIVE,
+ CX25840_PAD_CBFLAG,
+ CX25840_PAD_VID_DATA_EXT0,
+ CX25840_PAD_VID_DATA_EXT1,
+ CX25840_PAD_GPO0,
+ CX25840_PAD_GPO1,
+ CX25840_PAD_GPO2,
+ CX25840_PAD_GPO3,
+ CX25840_PAD_IRQ_N,
+ CX25840_PAD_AC_SYNC,
+ CX25840_PAD_AC_SDOUT,
+ CX25840_PAD_PLL_CLK,
+ CX25840_PAD_VRESET,
+ CX25840_PAD_RESERVED,
+ /* Pads for PLL_CLK output only */
+ CX25840_PAD_XTI_X5_DLL,
+ CX25840_PAD_AUX_PLL,
+ CX25840_PAD_VID_PLL,
+ CX25840_PAD_XTI,
+ /* Input Pads */
+ CX25840_PAD_GPI0,
+ CX25840_PAD_GPI1,
+ CX25840_PAD_GPI2,
+ CX25840_PAD_GPI3,
+};
+
+enum cx25840_io_pin_strength {
+ CX25840_PIN_DRIVE_MEDIUM = 0,
+ CX25840_PIN_DRIVE_SLOW,
+ CX25840_PIN_DRIVE_FAST,
+};
+
+enum cx23885_io_pin {
+ CX23885_PIN_IR_RX_GPIO19,
+ CX23885_PIN_IR_TX_GPIO20,
+ CX23885_PIN_I2S_SDAT_GPIO21,
+ CX23885_PIN_I2S_WCLK_GPIO22,
+ CX23885_PIN_I2S_BCLK_GPIO23,
+ CX23885_PIN_IRQ_N_GPIO16,
+};
+
+enum cx23885_io_pad {
+ CX23885_PAD_IR_RX,
+ CX23885_PAD_GPIO19,
+ CX23885_PAD_IR_TX,
+ CX23885_PAD_GPIO20,
+ CX23885_PAD_I2S_SDAT,
+ CX23885_PAD_GPIO21,
+ CX23885_PAD_I2S_WCLK,
+ CX23885_PAD_GPIO22,
+ CX23885_PAD_I2S_BCLK,
+ CX23885_PAD_GPIO23,
+ CX23885_PAD_IRQ_N,
+ CX23885_PAD_GPIO16,
+};
#endif
--
1.7.1.1
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