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path: root/drivers/media/pci/ddbridge/ddbridge-ci.c
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Diffstat (limited to 'drivers/media/pci/ddbridge/ddbridge-ci.c')
-rw-r--r--drivers/media/pci/ddbridge/ddbridge-ci.c359
1 files changed, 359 insertions, 0 deletions
diff --git a/drivers/media/pci/ddbridge/ddbridge-ci.c b/drivers/media/pci/ddbridge/ddbridge-ci.c
new file mode 100644
index 000000000000..5828111487b0
--- /dev/null
+++ b/drivers/media/pci/ddbridge/ddbridge-ci.c
@@ -0,0 +1,359 @@
+/*
+ * ddbridge-ci.c: Digital Devices bridge CI (DuoFlex, CI Bridge) support
+ *
+ * Copyright (C) 2010-2017 Digital Devices GmbH
+ * Marcus Metzler <mocm@metzlerbros.de>
+ * Ralph Metzler <rjkm@metzlerbros.de>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * version 2 only, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * To obtain the license, point your browser to
+ * http://www.gnu.org/copyleft/gpl.html
+ */
+
+#include "ddbridge.h"
+#include "ddbridge-regs.h"
+#include "ddbridge-ci.h"
+#include "ddbridge-io.h"
+#include "ddbridge-i2c.h"
+
+#include "cxd2099.h"
+
+/* Octopus CI internal CI interface */
+
+static int wait_ci_ready(struct ddb_ci *ci)
+{
+ u32 count = 10;
+
+ ndelay(500);
+ do {
+ if (ddbreadl(ci->port->dev,
+ CI_CONTROL(ci->nr)) & CI_READY)
+ break;
+ usleep_range(1, 2);
+ if ((--count) == 0)
+ return -1;
+ } while (1);
+ return 0;
+}
+
+static int read_attribute_mem(struct dvb_ca_en50221 *ca,
+ int slot, int address)
+{
+ struct ddb_ci *ci = ca->data;
+ u32 val, off = (address >> 1) & (CI_BUFFER_SIZE - 1);
+
+ if (address > CI_BUFFER_SIZE)
+ return -1;
+ ddbwritel(ci->port->dev, CI_READ_CMD | (1 << 16) | address,
+ CI_DO_READ_ATTRIBUTES(ci->nr));
+ wait_ci_ready(ci);
+ val = 0xff & ddbreadl(ci->port->dev, CI_BUFFER(ci->nr) + off);
+ return val;
+}
+
+static int write_attribute_mem(struct dvb_ca_en50221 *ca, int slot,
+ int address, u8 value)
+{
+ struct ddb_ci *ci = ca->data;
+
+ ddbwritel(ci->port->dev, CI_WRITE_CMD | (value << 16) | address,
+ CI_DO_ATTRIBUTE_RW(ci->nr));
+ wait_ci_ready(ci);
+ return 0;
+}
+
+static int read_cam_control(struct dvb_ca_en50221 *ca,
+ int slot, u8 address)
+{
+ u32 count = 100;
+ struct ddb_ci *ci = ca->data;
+ u32 res;
+
+ ddbwritel(ci->port->dev, CI_READ_CMD | address,
+ CI_DO_IO_RW(ci->nr));
+ ndelay(500);
+ do {
+ res = ddbreadl(ci->port->dev, CI_READDATA(ci->nr));
+ if (res & CI_READY)
+ break;
+ usleep_range(1, 2);
+ if ((--count) == 0)
+ return -1;
+ } while (1);
+ return 0xff & res;
+}
+
+static int write_cam_control(struct dvb_ca_en50221 *ca, int slot,
+ u8 address, u8 value)
+{
+ struct ddb_ci *ci = ca->data;
+
+ ddbwritel(ci->port->dev, CI_WRITE_CMD | (value << 16) | address,
+ CI_DO_IO_RW(ci->nr));
+ wait_ci_ready(ci);
+ return 0;
+}
+
+static int slot_reset(struct dvb_ca_en50221 *ca, int slot)
+{
+ struct ddb_ci *ci = ca->data;
+
+ ddbwritel(ci->port->dev, CI_POWER_ON,
+ CI_CONTROL(ci->nr));
+ msleep(100);
+ ddbwritel(ci->port->dev, CI_POWER_ON | CI_RESET_CAM,
+ CI_CONTROL(ci->nr));
+ ddbwritel(ci->port->dev, CI_ENABLE | CI_POWER_ON | CI_RESET_CAM,
+ CI_CONTROL(ci->nr));
+ usleep_range(20, 25);
+ ddbwritel(ci->port->dev, CI_ENABLE | CI_POWER_ON,
+ CI_CONTROL(ci->nr));
+ return 0;
+}
+
+static int slot_shutdown(struct dvb_ca_en50221 *ca, int slot)
+{
+ struct ddb_ci *ci = ca->data;
+
+ ddbwritel(ci->port->dev, 0, CI_CONTROL(ci->nr));
+ msleep(300);
+ return 0;
+}
+
+static int slot_ts_enable(struct dvb_ca_en50221 *ca, int slot)
+{
+ struct ddb_ci *ci = ca->data;
+ u32 val = ddbreadl(ci->port->dev, CI_CONTROL(ci->nr));
+
+ ddbwritel(ci->port->dev, val | CI_BYPASS_DISABLE,
+ CI_CONTROL(ci->nr));
+ return 0;
+}
+
+static int poll_slot_status(struct dvb_ca_en50221 *ca, int slot, int open)
+{
+ struct ddb_ci *ci = ca->data;
+ u32 val = ddbreadl(ci->port->dev, CI_CONTROL(ci->nr));
+ int stat = 0;
+
+ if (val & CI_CAM_DETECT)
+ stat |= DVB_CA_EN50221_POLL_CAM_PRESENT;
+ if (val & CI_CAM_READY)
+ stat |= DVB_CA_EN50221_POLL_CAM_READY;
+ return stat;
+}
+
+static struct dvb_ca_en50221 en_templ = {
+ .read_attribute_mem = read_attribute_mem,
+ .write_attribute_mem = write_attribute_mem,
+ .read_cam_control = read_cam_control,
+ .write_cam_control = write_cam_control,
+ .slot_reset = slot_reset,
+ .slot_shutdown = slot_shutdown,
+ .slot_ts_enable = slot_ts_enable,
+ .poll_slot_status = poll_slot_status,
+};
+
+static void ci_attach(struct ddb_port *port)
+{
+ struct ddb_ci *ci = NULL;
+
+ ci = kzalloc(sizeof(*ci), GFP_KERNEL);
+ if (!ci)
+ return;
+ memcpy(&ci->en, &en_templ, sizeof(en_templ));
+ ci->en.data = ci;
+ port->en = &ci->en;
+ ci->port = port;
+ ci->nr = port->nr - 2;
+}
+
+/* DuoFlex Dual CI support */
+
+static int write_creg(struct ddb_ci *ci, u8 data, u8 mask)
+{
+ struct i2c_adapter *i2c = &ci->port->i2c->adap;
+ u8 adr = (ci->port->type == DDB_CI_EXTERNAL_XO2) ? 0x12 : 0x13;
+
+ ci->port->creg = (ci->port->creg & ~mask) | data;
+ return i2c_write_reg(i2c, adr, 0x02, ci->port->creg);
+}
+
+static int read_attribute_mem_xo2(struct dvb_ca_en50221 *ca,
+ int slot, int address)
+{
+ struct ddb_ci *ci = ca->data;
+ struct i2c_adapter *i2c = &ci->port->i2c->adap;
+ u8 adr = (ci->port->type == DDB_CI_EXTERNAL_XO2) ? 0x12 : 0x13;
+ int res;
+ u8 val;
+
+ res = i2c_read_reg16(i2c, adr, 0x8000 | address, &val);
+ return res ? res : val;
+}
+
+static int write_attribute_mem_xo2(struct dvb_ca_en50221 *ca, int slot,
+ int address, u8 value)
+{
+ struct ddb_ci *ci = ca->data;
+ struct i2c_adapter *i2c = &ci->port->i2c->adap;
+ u8 adr = (ci->port->type == DDB_CI_EXTERNAL_XO2) ? 0x12 : 0x13;
+
+ return i2c_write_reg16(i2c, adr, 0x8000 | address, value);
+}
+
+static int read_cam_control_xo2(struct dvb_ca_en50221 *ca,
+ int slot, u8 address)
+{
+ struct ddb_ci *ci = ca->data;
+ struct i2c_adapter *i2c = &ci->port->i2c->adap;
+ u8 adr = (ci->port->type == DDB_CI_EXTERNAL_XO2) ? 0x12 : 0x13;
+ u8 val;
+ int res;
+
+ res = i2c_read_reg(i2c, adr, 0x20 | (address & 3), &val);
+ return res ? res : val;
+}
+
+static int write_cam_control_xo2(struct dvb_ca_en50221 *ca, int slot,
+ u8 address, u8 value)
+{
+ struct ddb_ci *ci = ca->data;
+ struct i2c_adapter *i2c = &ci->port->i2c->adap;
+ u8 adr = (ci->port->type == DDB_CI_EXTERNAL_XO2) ? 0x12 : 0x13;
+
+ return i2c_write_reg(i2c, adr, 0x20 | (address & 3), value);
+}
+
+static int slot_reset_xo2(struct dvb_ca_en50221 *ca, int slot)
+{
+ struct ddb_ci *ci = ca->data;
+
+ dev_dbg(ci->port->dev->dev, "%s\n", __func__);
+ write_creg(ci, 0x01, 0x01);
+ write_creg(ci, 0x04, 0x04);
+ msleep(20);
+ write_creg(ci, 0x02, 0x02);
+ write_creg(ci, 0x00, 0x04);
+ write_creg(ci, 0x18, 0x18);
+ return 0;
+}
+
+static int slot_shutdown_xo2(struct dvb_ca_en50221 *ca, int slot)
+{
+ struct ddb_ci *ci = ca->data;
+
+ dev_dbg(ci->port->dev->dev, "%s\n", __func__);
+ write_creg(ci, 0x10, 0xff);
+ write_creg(ci, 0x08, 0x08);
+ return 0;
+}
+
+static int slot_ts_enable_xo2(struct dvb_ca_en50221 *ca, int slot)
+{
+ struct ddb_ci *ci = ca->data;
+
+ dev_dbg(ci->port->dev->dev, "%s\n", __func__);
+ write_creg(ci, 0x00, 0x10);
+ return 0;
+}
+
+static int poll_slot_status_xo2(struct dvb_ca_en50221 *ca, int slot, int open)
+{
+ struct ddb_ci *ci = ca->data;
+ struct i2c_adapter *i2c = &ci->port->i2c->adap;
+ u8 adr = (ci->port->type == DDB_CI_EXTERNAL_XO2) ? 0x12 : 0x13;
+ u8 val = 0;
+ int stat = 0;
+
+ i2c_read_reg(i2c, adr, 0x01, &val);
+
+ if (val & 2)
+ stat |= DVB_CA_EN50221_POLL_CAM_PRESENT;
+ if (val & 1)
+ stat |= DVB_CA_EN50221_POLL_CAM_READY;
+ return stat;
+}
+
+static struct dvb_ca_en50221 en_xo2_templ = {
+ .read_attribute_mem = read_attribute_mem_xo2,
+ .write_attribute_mem = write_attribute_mem_xo2,
+ .read_cam_control = read_cam_control_xo2,
+ .write_cam_control = write_cam_control_xo2,
+ .slot_reset = slot_reset_xo2,
+ .slot_shutdown = slot_shutdown_xo2,
+ .slot_ts_enable = slot_ts_enable_xo2,
+ .poll_slot_status = poll_slot_status_xo2,
+};
+
+static void ci_xo2_attach(struct ddb_port *port)
+{
+ struct ddb_ci *ci;
+
+ ci = kzalloc(sizeof(*ci), GFP_KERNEL);
+ if (!ci)
+ return;
+ memcpy(&ci->en, &en_xo2_templ, sizeof(en_xo2_templ));
+ ci->en.data = ci;
+ port->en = &ci->en;
+ ci->port = port;
+ ci->nr = port->nr - 2;
+ ci->port->creg = 0;
+ write_creg(ci, 0x10, 0xff);
+ write_creg(ci, 0x08, 0x08);
+}
+
+static struct cxd2099_cfg cxd_cfg = {
+ .bitrate = 72000,
+ .adr = 0x40,
+ .polarity = 1,
+ .clock_mode = 1,
+ .max_i2c = 512,
+};
+
+int ddb_ci_attach(struct ddb_port *port, u32 bitrate)
+{
+ switch (port->type) {
+ case DDB_CI_EXTERNAL_SONY:
+ cxd_cfg.bitrate = bitrate;
+ port->en = cxd2099_attach(&cxd_cfg, port, &port->i2c->adap);
+ if (!port->en)
+ return -ENODEV;
+ break;
+
+ case DDB_CI_EXTERNAL_XO2:
+ case DDB_CI_EXTERNAL_XO2_B:
+ ci_xo2_attach(port);
+ if (!port->en)
+ return -ENODEV;
+ break;
+
+ case DDB_CI_INTERNAL:
+ ci_attach(port);
+ if (!port->en)
+ return -ENODEV;
+ break;
+ }
+
+ dvb_ca_en50221_init(port->dvb[0].adap, port->en, 0, 1);
+ return 0;
+}
+
+void ddb_ci_detach(struct ddb_port *port)
+{
+ if (port->dvb[0].dev)
+ dvb_unregister_device(port->dvb[0].dev);
+ if (port->en) {
+ dvb_ca_en50221_release(port->en);
+ kfree(port->en->data);
+ port->en = NULL;
+ }
+}