Add CI support for DVBSky T980C.
I used the new host device independent CIMaX SP2 I2C driver to implement it.
cx23885_sp2_ci_ctrl function is borrowed entirely from cimax2.c.
Signed-off-by: Olli Salonen <olli.salo...@iki.fi>
---
drivers/media/pci/cx23885/cx23885-dvb.c | 105 +++++++++++++++++++++++++++++++-
1 file changed, 103 insertions(+), 2 deletions(-)
diff --git a/drivers/media/pci/cx23885/cx23885-dvb.c
b/drivers/media/pci/cx23885/cx23885-dvb.c
index cc88997..70dbcd6 100644
--- a/drivers/media/pci/cx23885/cx23885-dvb.c
+++ b/drivers/media/pci/cx23885/cx23885-dvb.c
@@ -71,6 +71,7 @@
#include "si2165.h"
#include "si2168.h"
#include "si2157.h"
+#include "sp2.h"
#include "m88ds3103.h"
#include "m88ts2022.h"
@@ -616,6 +617,76 @@ static int dvbsky_t9580_set_voltage(struct dvb_frontend
*fe,
return 0;
}
+static int cx23885_sp2_ci_ctrl(void *priv, u8 read, int addr,
+ u8 data, int *mem)
+{
+
+ /* MC417 */
+ #define SP2_DATA 0x000000ff
+ #define SP2_WR 0x00008000
+ #define SP2_RD 0x00004000
+ #define SP2_ACK 0x00001000
+ #define SP2_ADHI 0x00000800
+ #define SP2_ADLO 0x00000400
+ #define SP2_CS1 0x00000200
+ #define SP2_CS0 0x00000100
+ #define SP2_EN_ALL 0x00001000
+ #define SP2_CTRL_OFF (SP2_CS1 | SP2_CS0 | SP2_WR | SP2_RD)
+
+ struct cx23885_tsport *port = priv;
+ struct cx23885_dev *dev = port->dev;
+ int ret;
+ int tmp;
+ unsigned long timeout;
+
+ mutex_lock(&dev->gpio_lock);
+
+ /* write addr */
+ cx_write(MC417_OEN, SP2_EN_ALL);
+ cx_write(MC417_RWD, SP2_CTRL_OFF |
+ SP2_ADLO | (0xff & addr));
+ cx_clear(MC417_RWD, SP2_ADLO);
+ cx_write(MC417_RWD, SP2_CTRL_OFF |
+ SP2_ADHI | (0xff & (addr >> 8)));
+ cx_clear(MC417_RWD, SP2_ADHI);
+
+ if (read) { /* data in */
+ cx_write(MC417_OEN, SP2_EN_ALL | SP2_DATA);
+ } else /* data out */
+ cx_write(MC417_RWD, SP2_CTRL_OFF | data);
+
+ /* chip select 0 */
+ cx_clear(MC417_RWD, SP2_CS0);
+
+ /* read/write */
+ cx_clear(MC417_RWD, (read) ? SP2_RD : SP2_WR);
+
+ timeout = jiffies + msecs_to_jiffies(1);
+ for (;;) {
+ tmp = cx_read(MC417_RWD);
+ if ((tmp & SP2_ACK) == 0)
+ break;
+ if (time_after(jiffies, timeout))
+ break;
+ udelay(1);
+ }
+
+ cx_set(MC417_RWD, SP2_CTRL_OFF);
+ *mem = tmp & 0xff;
+
+ mutex_unlock(&dev->gpio_lock);
+
+ if (!read)
+ if (*mem < 0) {
+ ret = -EREMOTEIO;
+ goto err;
+ }
+
+ return 0;
+err:
+ return ret;
+}
+
static int cx23885_dvb_set_frontend(struct dvb_frontend *fe)
{
struct dtv_frontend_properties *p = &fe->dtv_property_cache;
@@ -944,11 +1015,11 @@ static int dvb_register(struct cx23885_tsport *port)
struct vb2_dvb_frontend *fe0, *fe1 = NULL;
struct si2168_config si2168_config;
struct si2157_config si2157_config;
+ struct sp2_config sp2_config;
struct m88ts2022_config m88ts2022_config;
struct i2c_board_info info;
struct i2c_adapter *adapter;
- struct i2c_client *client_demod;
- struct i2c_client *client_tuner;
+ struct i2c_client *client_demod, *client_tuner, *client_ci;
int mfe_shared = 0; /* bus not shared by default */
int ret;
@@ -1683,6 +1754,7 @@ static int dvb_register(struct cx23885_tsport *port)
break;
case CX23885_BOARD_DVBSKY_T980C:
i2c_bus = &dev->i2c_bus[1];
+ i2c_bus2 = &dev->i2c_bus[0];
/* attach frontend */
memset(&si2168_config, 0, sizeof(si2168_config));
@@ -1820,6 +1892,35 @@ static int dvb_register(struct cx23885_tsport *port)
case CX23885_BOARD_DVBSKY_T980C: {
u8 eeprom[256]; /* 24C02 i2c eeprom */
+ /* attach CI */
+ memset(&sp2_config, 0, sizeof(sp2_config));
+ sp2_config.dvb_adap = &port->frontends.adapter;
+ sp2_config.priv = port;
+ sp2_config.ci_control = cx23885_sp2_ci_ctrl;
+ memset(&info, 0, sizeof(struct i2c_board_info));
+ strlcpy(info.type, "sp2", I2C_NAME_SIZE);
+ info.addr = 0x40;
+ info.platform_data = &sp2_config;
+ request_module(info.type);
+ client_ci = i2c_new_device(&i2c_bus2->i2c_adap, &info);
+ if (client_ci == NULL ||
+ client_ci->dev.driver == NULL) {
+ module_put(client_tuner->dev.driver->owner);
+ i2c_unregister_device(client_tuner);
+ module_put(client_demod->dev.driver->owner);
+ i2c_unregister_device(client_demod);
+ goto frontend_detach;
+ }
+ if (!try_module_get(client_ci->dev.driver->owner)) {
+ i2c_unregister_device(client_ci);
+ module_put(client_tuner->dev.driver->owner);
+ i2c_unregister_device(client_tuner);
+ module_put(client_demod->dev.driver->owner);
+ i2c_unregister_device(client_demod);
+ goto frontend_detach;
+ }
+ port->i2c_client_ci = client_ci;
+
if (port->nr != 1)
break;
--
1.9.1
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