--- /dev/null
+/*
+ CA-driver for TwinHan DST Frontend/Card
+
+ Copyright (C) 2004, 2005 Manu Abraham (manu@kromtek.com)
+
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 2 of the License, or
+ (at your option) any later version.
+
+ 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.
+
+ You should have received a copy of the GNU General Public License
+ along with this program; if not, write to the Free Software
+ Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+*/
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/slab.h>
+#include <linux/init.h>
+#include <linux/mutex.h>
+#include <linux/string.h>
+#include <linux/dvb/ca.h>
+#include "dvbdev.h"
+#include "dvb_frontend.h"
+#include "dst_ca.h"
+#include "dst_common.h"
+
+#define DST_CA_ERROR 0
+#define DST_CA_NOTICE 1
+#define DST_CA_INFO 2
+#define DST_CA_DEBUG 3
+
+#define dprintk(x, y, z, format, arg...) do { \
+ if (z) { \
+ if ((x > DST_CA_ERROR) && (x > y)) \
+ printk(KERN_ERR "%s: " format "\n", __func__ , ##arg); \
+ else if ((x > DST_CA_NOTICE) && (x > y)) \
+ printk(KERN_NOTICE "%s: " format "\n", __func__ , ##arg); \
+ else if ((x > DST_CA_INFO) && (x > y)) \
+ printk(KERN_INFO "%s: " format "\n", __func__ , ##arg); \
+ else if ((x > DST_CA_DEBUG) && (x > y)) \
+ printk(KERN_DEBUG "%s: " format "\n", __func__ , ##arg); \
+ } else { \
+ if (x > y) \
+ printk(format, ## arg); \
+ } \
+} while(0)
+
+
+static DEFINE_MUTEX(dst_ca_mutex);
+static unsigned int verbose = 5;
+module_param(verbose, int, 0644);
+MODULE_PARM_DESC(verbose, "verbose startup messages, default is 1 (yes)");
+
+/* Need some more work */
+static int ca_set_slot_descr(void)
+{
+ /* We could make this more graceful ? */
+ return -EOPNOTSUPP;
+}
+
+/* Need some more work */
+static int ca_set_pid(void)
+{
+ /* We could make this more graceful ? */
+ return -EOPNOTSUPP;
+}
+
+static void put_command_and_length(u8 *data, int command, int length)
+{
+ data[0] = (command >> 16) & 0xff;
+ data[1] = (command >> 8) & 0xff;
+ data[2] = command & 0xff;
+ data[3] = length;
+}
+
+static void put_checksum(u8 *check_string, int length)
+{
+ dprintk(verbose, DST_CA_DEBUG, 1, " Computing string checksum.");
+ dprintk(verbose, DST_CA_DEBUG, 1, " -> string length : 0x%02x", length);
+ check_string[length] = dst_check_sum (check_string, length);
+ dprintk(verbose, DST_CA_DEBUG, 1, " -> checksum : 0x%02x", check_string[length]);
+}
+
+static int dst_ci_command(struct dst_state* state, u8 * data, u8 *ca_string, u8 len, int read)
+{
+ u8 reply;
+
+ mutex_lock(&state->dst_mutex);
+ dst_comm_init(state);
+ msleep(65);
+
+ if (write_dst(state, data, len)) {
+ dprintk(verbose, DST_CA_INFO, 1, " Write not successful, trying to recover");
+ dst_error_recovery(state);
+ goto error;
+ }
+ if ((dst_pio_disable(state)) < 0) {
+ dprintk(verbose, DST_CA_ERROR, 1, " DST PIO disable failed.");
+ goto error;
+ }
+ if (read_dst(state, &reply, GET_ACK) < 0) {
+ dprintk(verbose, DST_CA_INFO, 1, " Read not successful, trying to recover");
+ dst_error_recovery(state);
+ goto error;
+ }
+ if (read) {
+ if (! dst_wait_dst_ready(state, LONG_DELAY)) {
+ dprintk(verbose, DST_CA_NOTICE, 1, " 8820 not ready");
+ goto error;
+ }
+ if (read_dst(state, ca_string, 128) < 0) { /* Try to make this dynamic */
+ dprintk(verbose, DST_CA_INFO, 1, " Read not successful, trying to recover");
+ dst_error_recovery(state);
+ goto error;
+ }
+ }
+ mutex_unlock(&state->dst_mutex);
+ return 0;
+
+error:
+ mutex_unlock(&state->dst_mutex);
+ return -EIO;
+}
+
+
+static int dst_put_ci(struct dst_state *state, u8 *data, int len, u8 *ca_string, int read)
+{
+ u8 dst_ca_comm_err = 0;
+
+ while (dst_ca_comm_err < RETRIES) {
+ dprintk(verbose, DST_CA_NOTICE, 1, " Put Command");
+ if (dst_ci_command(state, data, ca_string, len, read)) { // If error
+ dst_error_recovery(state);
+ dst_ca_comm_err++; // work required here.
+ } else {
+ break;
+ }
+ }
+
+ if(dst_ca_comm_err == RETRIES)
+ return -1;
+
+ return 0;
+}
+
+
+
+static int ca_get_app_info(struct dst_state *state)
+{
+ int length, str_length;
+ static u8 command[8] = {0x07, 0x40, 0x01, 0x00, 0x01, 0x00, 0x00, 0xff};
+
+ put_checksum(&command[0], command[0]);
+ if ((dst_put_ci(state, command, sizeof(command), state->messages, GET_REPLY)) < 0) {
+ dprintk(verbose, DST_CA_ERROR, 1, " -->dst_put_ci FAILED !");
+ return -1;
+ }
+ dprintk(verbose, DST_CA_INFO, 1, " -->dst_put_ci SUCCESS !");
+ dprintk(verbose, DST_CA_INFO, 1, " ================================ CI Module Application Info ======================================");
+ dprintk(verbose, DST_CA_INFO, 1, " Application Type=[%d], Application Vendor=[%d], Vendor Code=[%d]\n%s: Application info=[%s]",
+ state->messages[7], (state->messages[8] << 8) | state->messages[9],
+ (state->messages[10] << 8) | state->messages[11], __func__, (char *)(&state->messages[12]));
+ dprintk(verbose, DST_CA_INFO, 1, " ==================================================================================================");
+
+ // Transform dst message to correct application_info message
+ length = state->messages[5];
+ str_length = length - 6;
+ if (str_length < 0) {
+ str_length = 0;
+ dprintk(verbose, DST_CA_ERROR, 1, "Invalid string length returned in ca_get_app_info(). Recovering.");
+ }
+
+ // First, the command and length fields
+ put_command_and_length(&state->messages[0], CA_APP_INFO, length);
+
+ // Copy application_type, application_manufacturer and manufacturer_code
+ memmove(&state->messages[4], &state->messages[7], 5);
+
+ // Set string length and copy string
+ state->messages[9] = str_length;
+ memmove(&state->messages[10], &state->messages[12], str_length);
+
+ return 0;
+}
+
+static int ca_get_ca_info(struct dst_state *state)
+{
+ int srcPtr, dstPtr, i, num_ids;
+ static u8 slot_command[8] = {0x07, 0x40, 0x00, 0x00, 0x02, 0x00, 0x00, 0xff};
+ const int in_system_id_pos = 8, out_system_id_pos = 4, in_num_ids_pos = 7;
+
+ put_checksum(&slot_command[0], slot_command[0]);
+ if ((dst_put_ci(state, slot_command, sizeof (slot_command), state->messages, GET_REPLY)) < 0) {
+ dprintk(verbose, DST_CA_ERROR, 1, " -->dst_put_ci FAILED !");
+ return -1;
+ }
+ dprintk(verbose, DST_CA_INFO, 1, " -->dst_put_ci SUCCESS !");
+
+ // Print raw data
+ dprintk(verbose, DST_CA_INFO, 0, " DST data = [");
+ for (i = 0; i < state->messages[0] + 1; i++) {
+ dprintk(verbose, DST_CA_INFO, 0, " 0x%02x", state->messages[i]);
+ }
+ dprintk(verbose, DST_CA_INFO, 0, "]\n");
+
+ // Set the command and length of the output
+ num_ids = state->messages[in_num_ids_pos];
+ if (num_ids >= 100) {
+ num_ids = 100;
+ dprintk(verbose, DST_CA_ERROR, 1, "Invalid number of ids (>100). Recovering.");
+ }
+ put_command_and_length(&state->messages[0], CA_INFO, num_ids * 2);
+
+ dprintk(verbose, DST_CA_INFO, 0, " CA_INFO = [");
+ srcPtr = in_system_id_pos;
+ dstPtr = out_system_id_pos;
+ for(i = 0; i < num_ids; i++) {
+ dprintk(verbose, DST_CA_INFO, 0, " 0x%02x%02x", state->messages[srcPtr + 0], state->messages[srcPtr + 1]);
+ // Append to output
+ state->messages[dstPtr + 0] = state->messages[srcPtr + 0];
+ state->messages[dstPtr + 1] = state->messages[srcPtr + 1];
+ srcPtr += 2;
+ dstPtr += 2;
+ }
+ dprintk(verbose, DST_CA_INFO, 0, "]\n");
+
+ return 0;
+}
+
+static int ca_get_slot_caps(struct dst_state *state, struct ca_caps *p_ca_caps, void __user *arg)
+{
+ int i;
+ u8 slot_cap[256];
+ static u8 slot_command[8] = {0x07, 0x40, 0x02, 0x00, 0x02, 0x00, 0x00, 0xff};
+
+ put_checksum(&slot_command[0], slot_command[0]);
+ if ((dst_put_ci(state, slot_command, sizeof (slot_command), slot_cap, GET_REPLY)) < 0) {
+ dprintk(verbose, DST_CA_ERROR, 1, " -->dst_put_ci FAILED !");
+ return -1;
+ }
+ dprintk(verbose, DST_CA_NOTICE, 1, " -->dst_put_ci SUCCESS !");
+
+ /* Will implement the rest soon */
+
+ dprintk(verbose, DST_CA_INFO, 1, " Slot cap = [%d]", slot_cap[7]);
+ dprintk(verbose, DST_CA_INFO, 0, "===================================\n");
+ for (i = 0; i < slot_cap[0] + 1; i++)
+ dprintk(verbose, DST_CA_INFO, 0, " %d", slot_cap[i]);
+ dprintk(verbose, DST_CA_INFO, 0, "\n");
+
+ p_ca_caps->slot_num = 1;
+ p_ca_caps->slot_type = 1;
+ p_ca_caps->descr_num = slot_cap[7];
+ p_ca_caps->descr_type = 1;
+
+ if (copy_to_user(arg, p_ca_caps, sizeof (struct ca_caps)))
+ return -EFAULT;
+
+ return 0;
+}
+
+/* Need some more work */
+static int ca_get_slot_descr(struct dst_state *state, struct ca_msg *p_ca_message, void __user *arg)
+{
+ return -EOPNOTSUPP;
+}
+
+
+static int ca_get_slot_info(struct dst_state *state, struct ca_slot_info *p_ca_slot_info, void __user *arg)
+{
+ int i;
+ static u8 slot_command[8] = {0x00, 0x05, 0x00, 0x00, 0x00, 0x00, 0x00, 0xff};
+
+ u8 *slot_info = state->messages;
+
+ put_checksum(&slot_command[0], 7);
+ if ((dst_put_ci(state, slot_command, sizeof (slot_command), slot_info, GET_REPLY)) < 0) {
+ dprintk(verbose, DST_CA_ERROR, 1, " -->dst_put_ci FAILED !");
+ return -1;
+ }
+ dprintk(verbose, DST_CA_INFO, 1, " -->dst_put_ci SUCCESS !");
+
+ /* Will implement the rest soon */
+
+ dprintk(verbose, DST_CA_INFO, 1, " Slot info = [%d]", slot_info[3]);
+ dprintk(verbose, DST_CA_INFO, 0, "===================================\n");
+ for (i = 0; i < 8; i++)
+ dprintk(verbose, DST_CA_INFO, 0, " %d", slot_info[i]);
+ dprintk(verbose, DST_CA_INFO, 0, "\n");
+
+ if (slot_info[4] & 0x80) {
+ p_ca_slot_info->flags = CA_CI_MODULE_PRESENT;
+ p_ca_slot_info->num = 1;
+ p_ca_slot_info->type = CA_CI;
+ } else if (slot_info[4] & 0x40) {
+ p_ca_slot_info->flags = CA_CI_MODULE_READY;
+ p_ca_slot_info->num = 1;
+ p_ca_slot_info->type = CA_CI;
+ } else
+ p_ca_slot_info->flags = 0;
+
+ if (copy_to_user(arg, p_ca_slot_info, sizeof (struct ca_slot_info)))
+ return -EFAULT;
+
+ return 0;
+}
+
+
+static int ca_get_message(struct dst_state *state, struct ca_msg *p_ca_message, void __user *arg)
+{
+ u8 i = 0;
+ u32 command = 0;
+
+ if (copy_from_user(p_ca_message, arg, sizeof (struct ca_msg)))
+ return -EFAULT;
+
+ if (p_ca_message->msg) {
+ dprintk(verbose, DST_CA_NOTICE, 1, " Message = [%*ph]",
+ 3, p_ca_message->msg);
+
+ for (i = 0; i < 3; i++) {
+ command = command | p_ca_message->msg[i];
+ if (i < 2)
+ command = command << 8;
+ }
+ dprintk(verbose, DST_CA_NOTICE, 1, " Command=[0x%x]", command);
+
+ switch (command) {
+ case CA_APP_INFO:
+ memcpy(p_ca_message->msg, state->messages, 128);
+ if (copy_to_user(arg, p_ca_message, sizeof (struct ca_msg)) )
+ return -EFAULT;
+ break;
+ case CA_INFO:
+ memcpy(p_ca_message->msg, state->messages, 128);
+ if (copy_to_user(arg, p_ca_message, sizeof (struct ca_msg)) )
+ return -EFAULT;
+ break;
+ }
+ }
+
+ return 0;
+}
+
+static int handle_dst_tag(struct dst_state *state, struct ca_msg *p_ca_message, struct ca_msg *hw_buffer, u32 length)
+{
+ if (state->dst_hw_cap & DST_TYPE_HAS_SESSION) {
+ hw_buffer->msg[2] = p_ca_message->msg[1]; /* MSB */
+ hw_buffer->msg[3] = p_ca_message->msg[2]; /* LSB */
+ } else {
+ if (length > 247) {
+ dprintk(verbose, DST_CA_ERROR, 1, " Message too long ! *** Bailing Out *** !");
+ return -1;
+ }
+ hw_buffer->msg[0] = (length & 0xff) + 7;
+ hw_buffer->msg[1] = 0x40;
+ hw_buffer->msg[2] = 0x03;
+ hw_buffer->msg[3] = 0x00;
+ hw_buffer->msg[4] = 0x03;
+ hw_buffer->msg[5] = length & 0xff;
+ hw_buffer->msg[6] = 0x00;
+
+ /*
+ * Need to compute length for EN50221 section 8.3.2, for the time being
+ * assuming 8.3.2 is not applicable
+ */
+ memcpy(&hw_buffer->msg[7], &p_ca_message->msg[4], length);
+ }
+
+ return 0;
+}
+
+static int write_to_8820(struct dst_state *state, struct ca_msg *hw_buffer, u8 length, u8 reply)
+{
+ if ((dst_put_ci(state, hw_buffer->msg, length, hw_buffer->msg, reply)) < 0) {
+ dprintk(verbose, DST_CA_ERROR, 1, " DST-CI Command failed.");
+ dprintk(verbose, DST_CA_NOTICE, 1, " Resetting DST.");
+ rdc_reset_state(state);
+ return -1;
+ }
+ dprintk(verbose, DST_CA_NOTICE, 1, " DST-CI Command success.");
+
+ return 0;
+}
+
+static u32 asn_1_decode(u8 *asn_1_array)
+{
+ u8 length_field = 0, word_count = 0, count = 0;
+ u32 length = 0;
+
+ length_field = asn_1_array[0];
+ dprintk(verbose, DST_CA_DEBUG, 1, " Length field=[%02x]", length_field);
+ if (length_field < 0x80) {
+ length = length_field & 0x7f;
+ dprintk(verbose, DST_CA_DEBUG, 1, " Length=[%02x]\n", length);
+ } else {
+ word_count = length_field & 0x7f;
+ for (count = 0; count < word_count; count++) {
+ length = length << 8;
+ length += asn_1_array[count + 1];
+ dprintk(verbose, DST_CA_DEBUG, 1, " Length=[%04x]", length);
+ }
+ }
+ return length;
+}
+
+static int debug_string(u8 *msg, u32 length, u32 offset)
+{
+ u32 i;
+
+ dprintk(verbose, DST_CA_DEBUG, 0, " String=[ ");
+ for (i = offset; i < length; i++)
+ dprintk(verbose, DST_CA_DEBUG, 0, "%02x ", msg[i]);
+ dprintk(verbose, DST_CA_DEBUG, 0, "]\n");
+
+ return 0;
+}
+
+
+static int ca_set_pmt(struct dst_state *state, struct ca_msg *p_ca_message, struct ca_msg *hw_buffer, u8 reply, u8 query)
+{
+ u32 length = 0;
+ u8 tag_length = 8;
+
+ length = asn_1_decode(&p_ca_message->msg[3]);
+ dprintk(verbose, DST_CA_DEBUG, 1, " CA Message length=[%d]", length);
+ debug_string(&p_ca_message->msg[4], length, 0); /* length is excluding tag & length */
+
+ memset(hw_buffer->msg, '\0', length);
+ handle_dst_tag(state, p_ca_message, hw_buffer, length);
+ put_checksum(hw_buffer->msg, hw_buffer->msg[0]);
+
+ debug_string(hw_buffer->msg, (length + tag_length), 0); /* tags too */
+ write_to_8820(state, hw_buffer, (length + tag_length), reply);
+
+ return 0;
+}
+
+
+/* Board supports CA PMT reply ? */
+static int dst_check_ca_pmt(struct dst_state *state, struct ca_msg *p_ca_message, struct ca_msg *hw_buffer)
+{
+ int ca_pmt_reply_test = 0;
+
+ /* Do test board */
+ /* Not there yet but soon */
+
+ /* CA PMT Reply capable */
+ if (ca_pmt_reply_test) {
+ if ((ca_set_pmt(state, p_ca_message, hw_buffer, 1, GET_REPLY)) < 0) {
+ dprintk(verbose, DST_CA_ERROR, 1, " ca_set_pmt.. failed !");
+ return -1;
+ }
+
+ /* Process CA PMT Reply */
+ /* will implement soon */
+ dprintk(verbose, DST_CA_ERROR, 1, " Not there yet");
+ }
+ /* CA PMT Reply not capable */
+ if (!ca_pmt_reply_test) {
+ if ((ca_set_pmt(state, p_ca_message, hw_buffer, 0, NO_REPLY)) < 0) {
+ dprintk(verbose, DST_CA_ERROR, 1, " ca_set_pmt.. failed !");
+ return -1;
+ }
+ dprintk(verbose, DST_CA_NOTICE, 1, " ca_set_pmt.. success !");
+ /* put a dummy message */
+
+ }
+ return 0;
+}
+
+static int ca_send_message(struct dst_state *state, struct ca_msg *p_ca_message, void __user *arg)
+{
+ int i = 0;
+
+ u32 command = 0;
+ struct ca_msg *hw_buffer;
+ int result = 0;
+
+ if ((hw_buffer = kmalloc(sizeof (struct ca_msg), GFP_KERNEL)) == NULL) {
+ dprintk(verbose, DST_CA_ERROR, 1, " Memory allocation failure");
+ return -ENOMEM;
+ }
+ dprintk(verbose, DST_CA_DEBUG, 1, " ");
+
+ if (copy_from_user(p_ca_message, arg, sizeof (struct ca_msg))) {
+ result = -EFAULT;
+ goto free_mem_and_exit;
+ }
+
+
+ if (p_ca_message->msg) {
+ /* EN50221 tag */
+ command = 0;
+
+ for (i = 0; i < 3; i++) {
+ command = command | p_ca_message->msg[i];
+ if (i < 2)
+ command = command << 8;
+ }
+ dprintk(verbose, DST_CA_DEBUG, 1, " Command=[0x%x]\n", command);
+
+ switch (command) {
+ case CA_PMT:
+ dprintk(verbose, DST_CA_DEBUG, 1, "Command = SEND_CA_PMT");
+ if ((ca_set_pmt(state, p_ca_message, hw_buffer, 0, 0)) < 0) { // code simplification started
+ dprintk(verbose, DST_CA_ERROR, 1, " -->CA_PMT Failed !");
+ result = -1;
+ goto free_mem_and_exit;
+ }
+ dprintk(verbose, DST_CA_INFO, 1, " -->CA_PMT Success !");
+ break;
+ case CA_PMT_REPLY:
+ dprintk(verbose, DST_CA_INFO, 1, "Command = CA_PMT_REPLY");
+ /* Have to handle the 2 basic types of cards here */
+ if ((dst_check_ca_pmt(state, p_ca_message, hw_buffer)) < 0) {
+ dprintk(verbose, DST_CA_ERROR, 1, " -->CA_PMT_REPLY Failed !");
+ result = -1;
+ goto free_mem_and_exit;
+ }
+ dprintk(verbose, DST_CA_INFO, 1, " -->CA_PMT_REPLY Success !");
+ break;
+ case CA_APP_INFO_ENQUIRY: // only for debugging
+ dprintk(verbose, DST_CA_INFO, 1, " Getting Cam Application information");
+
+ if ((ca_get_app_info(state)) < 0) {
+ dprintk(verbose, DST_CA_ERROR, 1, " -->CA_APP_INFO_ENQUIRY Failed !");
+ result = -1;
+ goto free_mem_and_exit;
+ }
+ dprintk(verbose, DST_CA_INFO, 1, " -->CA_APP_INFO_ENQUIRY Success !");
+ break;
+ case CA_INFO_ENQUIRY:
+ dprintk(verbose, DST_CA_INFO, 1, " Getting CA Information");
+
+ if ((ca_get_ca_info(state)) < 0) {
+ dprintk(verbose, DST_CA_ERROR, 1, " -->CA_INFO_ENQUIRY Failed !");
+ result = -1;
+ goto free_mem_and_exit;
+ }
+ dprintk(verbose, DST_CA_INFO, 1, " -->CA_INFO_ENQUIRY Success !");
+ break;
+ }
+ }
+free_mem_and_exit:
+ kfree (hw_buffer);
+
+ return result;
+}
+
+static long dst_ca_ioctl(struct file *file, unsigned int cmd, unsigned long ioctl_arg)
+{
+ struct dvb_device *dvbdev;
+ struct dst_state *state;
+ struct ca_slot_info *p_ca_slot_info;
+ struct ca_caps *p_ca_caps;
+ struct ca_msg *p_ca_message;
+ void __user *arg = (void __user *)ioctl_arg;
+ int result = 0;
+
+ mutex_lock(&dst_ca_mutex);
+ dvbdev = file->private_data;
+ state = (struct dst_state *)dvbdev->priv;
+ p_ca_message = kmalloc(sizeof (struct ca_msg), GFP_KERNEL);
+ p_ca_slot_info = kmalloc(sizeof (struct ca_slot_info), GFP_KERNEL);
+ p_ca_caps = kmalloc(sizeof (struct ca_caps), GFP_KERNEL);
+ if (!p_ca_message || !p_ca_slot_info || !p_ca_caps) {
+ dprintk(verbose, DST_CA_ERROR, 1, " Memory allocation failure");
+ result = -ENOMEM;
+ goto free_mem_and_exit;
+ }
+
+ /* We have now only the standard ioctl's, the driver is upposed to handle internals. */
+ switch (cmd) {
+ case CA_SEND_MSG:
+ dprintk(verbose, DST_CA_INFO, 1, " Sending message");
+ if ((ca_send_message(state, p_ca_message, arg)) < 0) {
+ dprintk(verbose, DST_CA_ERROR, 1, " -->CA_SEND_MSG Failed !");
+ result = -1;
+ goto free_mem_and_exit;
+ }
+ break;
+ case CA_GET_MSG:
+ dprintk(verbose, DST_CA_INFO, 1, " Getting message");
+ if ((ca_get_message(state, p_ca_message, arg)) < 0) {
+ dprintk(verbose, DST_CA_ERROR, 1, " -->CA_GET_MSG Failed !");
+ result = -1;
+ goto free_mem_and_exit;
+ }
+ dprintk(verbose, DST_CA_INFO, 1, " -->CA_GET_MSG Success !");
+ break;
+ case CA_RESET:
+ dprintk(verbose, DST_CA_ERROR, 1, " Resetting DST");
+ dst_error_bailout(state);
+ msleep(4000);
+ break;
+ case CA_GET_SLOT_INFO:
+ dprintk(verbose, DST_CA_INFO, 1, " Getting Slot info");
+ if ((ca_get_slot_info(state, p_ca_slot_info, arg)) < 0) {
+ dprintk(verbose, DST_CA_ERROR, 1, " -->CA_GET_SLOT_INFO Failed !");
+ result = -1;
+ goto free_mem_and_exit;
+ }
+ dprintk(verbose, DST_CA_INFO, 1, " -->CA_GET_SLOT_INFO Success !");
+ break;
+ case CA_GET_CAP:
+ dprintk(verbose, DST_CA_INFO, 1, " Getting Slot capabilities");
+ if ((ca_get_slot_caps(state, p_ca_caps, arg)) < 0) {
+ dprintk(verbose, DST_CA_ERROR, 1, " -->CA_GET_CAP Failed !");
+ result = -1;
+ goto free_mem_and_exit;
+ }
+ dprintk(verbose, DST_CA_INFO, 1, " -->CA_GET_CAP Success !");
+ break;
+ case CA_GET_DESCR_INFO:
+ dprintk(verbose, DST_CA_INFO, 1, " Getting descrambler description");
+ if ((ca_get_slot_descr(state, p_ca_message, arg)) < 0) {
+ dprintk(verbose, DST_CA_ERROR, 1, " -->CA_GET_DESCR_INFO Failed !");
+ result = -1;
+ goto free_mem_and_exit;
+ }
+ dprintk(verbose, DST_CA_INFO, 1, " -->CA_GET_DESCR_INFO Success !");
+ break;
+ case CA_SET_DESCR:
+ dprintk(verbose, DST_CA_INFO, 1, " Setting descrambler");
+ if ((ca_set_slot_descr()) < 0) {
+ dprintk(verbose, DST_CA_ERROR, 1, " -->CA_SET_DESCR Failed !");
+ result = -1;
+ goto free_mem_and_exit;
+ }
+ dprintk(verbose, DST_CA_INFO, 1, " -->CA_SET_DESCR Success !");
+ break;
+ case CA_SET_PID:
+ dprintk(verbose, DST_CA_INFO, 1, " Setting PID");
+ if ((ca_set_pid()) < 0) {
+ dprintk(verbose, DST_CA_ERROR, 1, " -->CA_SET_PID Failed !");
+ result = -1;
+ goto free_mem_and_exit;
+ }
+ dprintk(verbose, DST_CA_INFO, 1, " -->CA_SET_PID Success !");
+ default:
+ result = -EOPNOTSUPP;
+ }
+ free_mem_and_exit:
+ kfree (p_ca_message);
+ kfree (p_ca_slot_info);
+ kfree (p_ca_caps);
+
+ mutex_unlock(&dst_ca_mutex);
+ return result;
+}
+
+static int dst_ca_open(struct inode *inode, struct file *file)
+{
+ dprintk(verbose, DST_CA_DEBUG, 1, " Device opened [%p] ", file);
+ try_module_get(THIS_MODULE);
+
+ return 0;
+}
+
+static int dst_ca_release(struct inode *inode, struct file *file)
+{
+ dprintk(verbose, DST_CA_DEBUG, 1, " Device closed.");
+ module_put(THIS_MODULE);
+
+ return 0;
+}
+
+static ssize_t dst_ca_read(struct file *file, char __user *buffer, size_t length, loff_t *offset)
+{
+ dprintk(verbose, DST_CA_DEBUG, 1, " Device read.");
+
+ return 0;
+}
+
+static ssize_t dst_ca_write(struct file *file, const char __user *buffer, size_t length, loff_t *offset)
+{
+ dprintk(verbose, DST_CA_DEBUG, 1, " Device write.");
+
+ return 0;
+}
+
+static const struct file_operations dst_ca_fops = {
+ .owner = THIS_MODULE,
+ .unlocked_ioctl = dst_ca_ioctl,
+ .open = dst_ca_open,
+ .release = dst_ca_release,
+ .read = dst_ca_read,
+ .write = dst_ca_write,
+ .llseek = noop_llseek,
+};
+
+static struct dvb_device dvbdev_ca = {
+ .priv = NULL,
+ .users = 1,
+ .readers = 1,
+ .writers = 1,
+ .fops = &dst_ca_fops
+};
+
+struct dvb_device *dst_ca_attach(struct dst_state *dst, struct dvb_adapter *dvb_adapter)
+{
+ struct dvb_device *dvbdev;
+
+ dprintk(verbose, DST_CA_ERROR, 1, "registering DST-CA device");
+ if (dvb_register_device(dvb_adapter, &dvbdev, &dvbdev_ca, dst, DVB_DEVICE_CA) == 0) {
+ dst->dst_ca = dvbdev;
+ return dst->dst_ca;
+ }
+
+ return NULL;
+}
+
+EXPORT_SYMBOL(dst_ca_attach);
+
+MODULE_DESCRIPTION("DST DVB-S/T/C Combo CA driver");
+MODULE_AUTHOR("Manu Abraham");
+MODULE_LICENSE("GPL");
Code Review / kvmfornfv.git / blobdiff