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path: root/drivers/media/dvb
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-rw-r--r--drivers/media/dvb/frontends/drxk.h13
-rw-r--r--drivers/media/dvb/frontends/drxk_hard.c123
-rw-r--r--drivers/media/dvb/frontends/drxk_hard.h16
3 files changed, 110 insertions, 42 deletions
diff --git a/drivers/media/dvb/frontends/drxk.h b/drivers/media/dvb/frontends/drxk.h
index 67589b607c4e..a756e4562fe2 100644
--- a/drivers/media/dvb/frontends/drxk.h
+++ b/drivers/media/dvb/frontends/drxk.h
@@ -10,18 +10,21 @@
* adr: I2C Address of the DRX-K
* single_master: Device is on the single master mode
* no_i2c_bridge: Don't switch the I2C bridge to talk with tuner
- * antenna_uses_gpio: Use GPIO to control the antenna
- * antenna_dvbc: GPIO for changing antenna to DVB-C
- * antenna_dvbt: GPIO for changing antenna to DVB-T
+ * antenna_gpio: GPIO bit used to control the antenna
+ * antenna_dvbt: GPIO bit for changing antenna to DVB-C. A value of 1
+ * means that 1=DVBC, 0 = DVBT. Zero means the opposite.
* microcode_name: Name of the firmware file with the microcode
+ *
+ * On the *_gpio vars, bit 0 is UIO-1, bit 1 is UIO-2 and bit 2 is
+ * UIO-3.
*/
struct drxk_config {
u8 adr;
bool single_master;
bool no_i2c_bridge;
- bool antenna_uses_gpio;
- u16 antenna_dvbc, antenna_dvbt;
+ bool antenna_dvbt;
+ u16 antenna_gpio;
const char *microcode_name;
};
diff --git a/drivers/media/dvb/frontends/drxk_hard.c b/drivers/media/dvb/frontends/drxk_hard.c
index 0d288a7f0163..aaef8e35698b 100644
--- a/drivers/media/dvb/frontends/drxk_hard.c
+++ b/drivers/media/dvb/frontends/drxk_hard.c
@@ -856,7 +856,6 @@ static int init_state(struct drxk_state *state)
state->m_agcFastClipCtrlDelay = 0;
state->m_GPIOCfg = (ulGPIOCfg);
- state->m_GPIO = (ulGPIO == 0 ? 0 : 1);
state->m_bPowerDown = false;
state->m_currentPowerMode = DRX_POWER_DOWN;
@@ -5795,24 +5794,63 @@ static int WriteGPIO(struct drxk_state *state)
goto error;
if (state->m_hasSAWSW) {
- /* write to io pad configuration register - output mode */
- status = write16(state, SIO_PDR_SMA_TX_CFG__A, state->m_GPIOCfg);
- if (status < 0)
- goto error;
+ if (state->UIO_mask & 0x0001) { /* UIO-1 */
+ /* write to io pad configuration register - output mode */
+ status = write16(state, SIO_PDR_SMA_TX_CFG__A, state->m_GPIOCfg);
+ if (status < 0)
+ goto error;
- /* use corresponding bit in io data output registar */
- status = read16(state, SIO_PDR_UIO_OUT_LO__A, &value);
- if (status < 0)
- goto error;
- if (state->m_GPIO == 0)
- value &= 0x7FFF; /* write zero to 15th bit - 1st UIO */
- else
- value |= 0x8000; /* write one to 15th bit - 1st UIO */
- /* write back to io data output register */
- status = write16(state, SIO_PDR_UIO_OUT_LO__A, value);
- if (status < 0)
- goto error;
+ /* use corresponding bit in io data output registar */
+ status = read16(state, SIO_PDR_UIO_OUT_LO__A, &value);
+ if (status < 0)
+ goto error;
+ if ((state->m_GPIO & 0x0001) == 0)
+ value &= 0x7FFF; /* write zero to 15th bit - 1st UIO */
+ else
+ value |= 0x8000; /* write one to 15th bit - 1st UIO */
+ /* write back to io data output register */
+ status = write16(state, SIO_PDR_UIO_OUT_LO__A, value);
+ if (status < 0)
+ goto error;
+ }
+ if (state->UIO_mask & 0x0002) { /* UIO-2 */
+ /* write to io pad configuration register - output mode */
+ status = write16(state, SIO_PDR_SMA_TX_CFG__A, state->m_GPIOCfg);
+ if (status < 0)
+ goto error;
+ /* use corresponding bit in io data output registar */
+ status = read16(state, SIO_PDR_UIO_OUT_LO__A, &value);
+ if (status < 0)
+ goto error;
+ if ((state->m_GPIO & 0x0002) == 0)
+ value &= 0xBFFF; /* write zero to 14th bit - 2st UIO */
+ else
+ value |= 0x4000; /* write one to 14th bit - 2st UIO */
+ /* write back to io data output register */
+ status = write16(state, SIO_PDR_UIO_OUT_LO__A, value);
+ if (status < 0)
+ goto error;
+ }
+ if (state->UIO_mask & 0x0004) { /* UIO-3 */
+ /* write to io pad configuration register - output mode */
+ status = write16(state, SIO_PDR_SMA_TX_CFG__A, state->m_GPIOCfg);
+ if (status < 0)
+ goto error;
+
+ /* use corresponding bit in io data output registar */
+ status = read16(state, SIO_PDR_UIO_OUT_LO__A, &value);
+ if (status < 0)
+ goto error;
+ if ((state->m_GPIO & 0x0004) == 0)
+ value &= 0xFFFB; /* write zero to 2nd bit - 3rd UIO */
+ else
+ value |= 0x0004; /* write one to 2nd bit - 3rd UIO */
+ /* write back to io data output register */
+ status = write16(state, SIO_PDR_UIO_OUT_LO__A, value);
+ if (status < 0)
+ goto error;
+ }
}
/* Write magic word to disable pdr reg write */
status = write16(state, SIO_TOP_COMM_KEY__A, 0x0000);
@@ -5825,14 +5863,22 @@ error:
static int SwitchAntennaToQAM(struct drxk_state *state)
{
int status = 0;
+ bool gpio_state;
dprintk(1, "\n");
- if (state->m_AntennaSwitchDVBTDVBC != 0) {
- if (state->m_GPIO != state->m_AntennaDVBC) {
- state->m_GPIO = state->m_AntennaDVBC;
- status = WriteGPIO(state);
- }
+ if (!state->antenna_gpio)
+ return 0;
+
+ gpio_state = state->m_GPIO & state->antenna_gpio;
+
+ if (state->antenna_dvbt ^ gpio_state) {
+ /* Antenna is on DVB-T mode. Switch */
+ if (state->antenna_dvbt)
+ state->m_GPIO &= ~state->antenna_gpio;
+ else
+ state->m_GPIO |= state->antenna_gpio;
+ status = WriteGPIO(state);
}
if (status < 0)
printk(KERN_ERR "drxk: Error %d on %s\n", status, __func__);
@@ -5842,13 +5888,22 @@ static int SwitchAntennaToQAM(struct drxk_state *state)
static int SwitchAntennaToDVBT(struct drxk_state *state)
{
int status = 0;
+ bool gpio_state;
dprintk(1, "\n");
- if (state->m_AntennaSwitchDVBTDVBC != 0) {
- if (state->m_GPIO != state->m_AntennaDVBT) {
- state->m_GPIO = state->m_AntennaDVBT;
- status = WriteGPIO(state);
- }
+
+ if (!state->antenna_gpio)
+ return 0;
+
+ gpio_state = state->m_GPIO & state->antenna_gpio;
+
+ if (!(state->antenna_dvbt ^ gpio_state)) {
+ /* Antenna is on DVB-C mode. Switch */
+ if (state->antenna_dvbt)
+ state->m_GPIO |= state->antenna_gpio;
+ else
+ state->m_GPIO &= ~state->antenna_gpio;
+ status = WriteGPIO(state);
}
if (status < 0)
printk(KERN_ERR "drxk: Error %d on %s\n", status, __func__);
@@ -6350,9 +6405,17 @@ struct dvb_frontend *drxk_attach(const struct drxk_config *config,
state->single_master = config->single_master;
state->microcode_name = config->microcode_name;
state->no_i2c_bridge = config->no_i2c_bridge;
- state->m_AntennaSwitchDVBTDVBC = config->antenna_uses_gpio;
- state->m_AntennaDVBC = config->antenna_dvbc;
- state->m_AntennaDVBT = config->antenna_dvbt;
+ state->antenna_gpio = config->antenna_gpio;
+ state->antenna_dvbt = config->antenna_dvbt;
+
+ /* NOTE: as more UIO bits will be used, add them to the mask */
+ state->UIO_mask = config->antenna_gpio;
+
+ /* Default gpio to DVB-C */
+ if (!state->antenna_dvbt && state->antenna_gpio)
+ state->m_GPIO |= state->antenna_gpio;
+ else
+ state->m_GPIO &= ~state->antenna_gpio;
mutex_init(&state->mutex);
mutex_init(&state->ctlock);
diff --git a/drivers/media/dvb/frontends/drxk_hard.h b/drivers/media/dvb/frontends/drxk_hard.h
index 8b29dc89f58b..a20a19d9aff6 100644
--- a/drivers/media/dvb/frontends/drxk_hard.h
+++ b/drivers/media/dvb/frontends/drxk_hard.h
@@ -323,17 +323,19 @@ struct drxk_state {
enum DRXPowerMode m_currentPowerMode;
- /* Configurable parameters at the driver */
+ /*
+ * Configurable parameters at the driver. They stores the values found
+ * at struct drxk_config.
+ */
- bool m_AntennaSwitchDVBTDVBC;
- u16 m_AntennaDVBC;
- u16 m_AntennaDVBT;
+ u16 UIO_mask; /* Bits used by UIO */
- u32 single_master : 1; /* Use single master i2c mode */
- u32 no_i2c_bridge : 1; /* Tuner is not on port 1, don't use I2C bridge */
+ bool single_master;
+ bool no_i2c_bridge;
+ bool antenna_dvbt;
+ u16 antenna_gpio;
const char *microcode_name;
-
};
#define NEVER_LOCK 0
generated by cgit v1.2.3 (git 2.0.4) at 2024-05-30 14:19:32 +0000