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path: root/drivers/media/dvb/mantis/mantis_vp2040.c
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Diffstat (limited to 'drivers/media/dvb/mantis/mantis_vp2040.c')
-rw-r--r--drivers/media/dvb/mantis/mantis_vp2040.c141
1 files changed, 136 insertions, 5 deletions
diff --git a/drivers/media/dvb/mantis/mantis_vp2040.c b/drivers/media/dvb/mantis/mantis_vp2040.c
index ce73d6beb5c6..51b082f7f917 100644
--- a/drivers/media/dvb/mantis/mantis_vp2040.c
+++ b/drivers/media/dvb/mantis/mantis_vp2040.c
@@ -18,22 +18,153 @@
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
+#include <asm/irq.h>
+#include <linux/signal.h>
+#include <linux/sched.h>
+#include <linux/interrupt.h>
+
+#include "dmxdev.h"
+#include "dvbdev.h"
+#include "dvb_demux.h"
+#include "dvb_frontend.h"
+#include "dvb_net.h"
+
+#include "tda1002x.h"
#include "mantis_common.h"
#include "mantis_vp2040.h"
#define MANTIS_MODEL_NAME "VP-2040"
#define MANTIS_DEV_TYPE "DVB-C"
-struct mantis_hwconfig vp2040_mantis_config = {
+struct tda1002x_config vp2040_tda1002x_cu1216_config = {
+ .demod_address = 0x18 >> 1,
+ .invert = 1,
+};
+
+struct tda10023_config vp2040_tda10023_cu1216_config = {
+ .demod_address = 0x18 >> 1,
+ .invert = 1,
+};
+
+static int tda1002x_cu1216_tuner_set(struct dvb_frontend *fe, struct dvb_frontend_parameters *params)
+{
+ struct mantis_pci *mantis = fe->dvb->priv;
+ struct i2c_adapter *adapter = &mantis->adapter;
+
+ u8 buf[6];
+ struct i2c_msg msg = {.addr = 0x60,.flags = 0,.buf = buf,.len = sizeof (buf) };
+ int i;
+
+#define CU1216_IF 36125000
+#define TUNER_MUL 62500
+
+ u32 div = (params->frequency + CU1216_IF + TUNER_MUL / 2) / TUNER_MUL;
+
+ buf[0] = (div >> 8) & 0x7f;
+ buf[1] = div & 0xff;
+ buf[2] = 0xce;
+ buf[3] = (params->frequency < 150000000 ? 0x01 :
+ params->frequency < 445000000 ? 0x02 : 0x04);
+ buf[4] = 0xde;
+ buf[5] = 0x20;
+
+ if (fe->ops.i2c_gate_ctrl)
+ fe->ops.i2c_gate_ctrl(fe, 1);
+
+ if (i2c_transfer(adapter, &msg, 1) != 1)
+ return -EIO;
+
+ /* wait for the pll lock */
+ msg.flags = I2C_M_RD;
+ msg.len = 1;
+ for (i = 0; i < 20; i++) {
+ if (fe->ops.i2c_gate_ctrl)
+ fe->ops.i2c_gate_ctrl(fe, 1);
+
+ if (i2c_transfer(adapter, &msg, 1) == 1 && (buf[0] & 0x40))
+ break;
+
+ msleep(10);
+ }
+
+ /* switch the charge pump to the lower current */
+ msg.flags = 0;
+ msg.len = 2;
+ msg.buf = &buf[2];
+ buf[2] &= ~0x40;
+ if (fe->ops.i2c_gate_ctrl)
+ fe->ops.i2c_gate_ctrl(fe, 1);
+
+ if (i2c_transfer(adapter, &msg, 1) != 1)
+ return -EIO;
+
+ return 0;
+}
+
+static u8 read_pwm(struct mantis_pci *mantis)
+{
+ struct i2c_adapter *adapter = &mantis->adapter;
+
+ u8 b = 0xff;
+ u8 pwm;
+ struct i2c_msg msg[] = {
+ {.addr = 0x50, .flags = 0, .buf = &b, .len = 1},
+ {.addr = 0x50, .flags = I2C_M_RD, .buf = &pwm, .len = 1}
+ };
+
+ if ((i2c_transfer(adapter, msg, 2) != 2)
+ || (pwm == 0xff))
+ pwm = 0x48;
+
+ return pwm;
+}
+
+static int vp2040_frontend_init(struct mantis_pci *mantis, struct dvb_frontend *fe)
+{
+ struct i2c_adapter *adapter = &mantis->adapter;
+
+ dprintk(MANTIS_ERROR, 1, "Probing for CU1216 (DVB-C)");
+ fe = tda10021_attach(&vp2040_tda1002x_cu1216_config,
+ adapter,
+ read_pwm(mantis));
+
+ if (fe) {
+ dprintk(MANTIS_ERROR, 1,
+ "found Philips CU1216 DVB-C frontend (TDA10021) @ 0x%02x",
+ vp2040_tda1002x_cu1216_config.demod_address);
+ } else {
+ fe = tda10023_attach(&vp2040_tda10023_cu1216_config,
+ adapter,
+ read_pwm(mantis));
+
+ if (fe) {
+ dprintk(MANTIS_ERROR, 1,
+ "found Philips CU1216 DVB-C frontend (TDA10023) @ 0x%02x",
+ vp2040_tda1002x_cu1216_config.demod_address);
+ }
+ }
+
+ if (fe) {
+ fe->ops.tuner_ops.set_params = tda1002x_cu1216_tuner_set;
+ dprintk(MANTIS_ERROR, 1, "Mantis DVB-C Philips CU1216 frontend attach success");
+ } else {
+ return -1;
+ }
+
+ mantis->fe = fe;
+ dprintk(MANTIS_DEBUG, 1, "Done!");
+
+ return 0;
+}
+
+struct mantis_hwconfig vp2040_config = {
.model_name = MANTIS_MODEL_NAME,
.dev_type = MANTIS_DEV_TYPE,
.ts_size = MANTIS_TS_204,
+
.baud_rate = MANTIS_BAUD_9600,
.parity = MANTIS_PARITY_NONE,
.bytes = 0,
-};
-struct tda10023_config tda10023_cu1216_config = {
- .demod_address = 0x18 >> 1,
- .invert = 1,
+ .frontend_init = vp2040_frontend_init,
};