676 lines
19 KiB
C
676 lines
19 KiB
C
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// SPDX-License-Identifier: GPL-2.0-or-later
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/*
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CA-driver for TwinHan DST Frontend/Card
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Copyright (C) 2004, 2005 Manu Abraham (manu@kromtek.com)
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*/
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#include <linux/kernel.h>
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#include <linux/module.h>
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#include <linux/slab.h>
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#include <linux/init.h>
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#include <linux/mutex.h>
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#include <linux/string.h>
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#include <linux/dvb/ca.h>
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#include <media/dvbdev.h>
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#include <media/dvb_frontend.h>
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#include "dst_ca.h"
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#include "dst_common.h"
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#define DST_CA_ERROR 0
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#define DST_CA_NOTICE 1
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#define DST_CA_INFO 2
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#define DST_CA_DEBUG 3
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#define dprintk(x, y, z, format, arg...) do { \
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if (z) { \
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if ((x > DST_CA_ERROR) && (x > y)) \
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printk(KERN_ERR "%s: " format "\n", __func__ , ##arg); \
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else if ((x > DST_CA_NOTICE) && (x > y)) \
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printk(KERN_NOTICE "%s: " format "\n", __func__ , ##arg); \
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else if ((x > DST_CA_INFO) && (x > y)) \
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printk(KERN_INFO "%s: " format "\n", __func__ , ##arg); \
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else if ((x > DST_CA_DEBUG) && (x > y)) \
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printk(KERN_DEBUG "%s: " format "\n", __func__ , ##arg); \
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} else { \
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if (x > y) \
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printk(format, ## arg); \
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} \
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} while(0)
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static DEFINE_MUTEX(dst_ca_mutex);
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static unsigned int verbose = 5;
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module_param(verbose, int, 0644);
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MODULE_PARM_DESC(verbose, "verbose startup messages, default is 1 (yes)");
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static void put_command_and_length(u8 *data, int command, int length)
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{
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data[0] = (command >> 16) & 0xff;
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data[1] = (command >> 8) & 0xff;
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data[2] = command & 0xff;
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data[3] = length;
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}
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static void put_checksum(u8 *check_string, int length)
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{
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dprintk(verbose, DST_CA_DEBUG, 1, " Computing string checksum.");
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dprintk(verbose, DST_CA_DEBUG, 1, " -> string length : 0x%02x", length);
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check_string[length] = dst_check_sum (check_string, length);
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dprintk(verbose, DST_CA_DEBUG, 1, " -> checksum : 0x%02x", check_string[length]);
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}
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static int dst_ci_command(struct dst_state* state, u8 * data, u8 *ca_string, u8 len, int read)
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{
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u8 reply;
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mutex_lock(&state->dst_mutex);
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dst_comm_init(state);
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msleep(65);
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if (write_dst(state, data, len)) {
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dprintk(verbose, DST_CA_INFO, 1, " Write not successful, trying to recover");
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dst_error_recovery(state);
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goto error;
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}
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if ((dst_pio_disable(state)) < 0) {
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dprintk(verbose, DST_CA_ERROR, 1, " DST PIO disable failed.");
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goto error;
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}
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if (read_dst(state, &reply, GET_ACK) < 0) {
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dprintk(verbose, DST_CA_INFO, 1, " Read not successful, trying to recover");
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dst_error_recovery(state);
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goto error;
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}
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if (read) {
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if (! dst_wait_dst_ready(state, LONG_DELAY)) {
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dprintk(verbose, DST_CA_NOTICE, 1, " 8820 not ready");
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goto error;
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}
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if (read_dst(state, ca_string, 128) < 0) { /* Try to make this dynamic */
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dprintk(verbose, DST_CA_INFO, 1, " Read not successful, trying to recover");
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dst_error_recovery(state);
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goto error;
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}
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}
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mutex_unlock(&state->dst_mutex);
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return 0;
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error:
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mutex_unlock(&state->dst_mutex);
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return -EIO;
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}
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static int dst_put_ci(struct dst_state *state, u8 *data, int len, u8 *ca_string, int read)
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{
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u8 dst_ca_comm_err = 0;
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while (dst_ca_comm_err < RETRIES) {
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dprintk(verbose, DST_CA_NOTICE, 1, " Put Command");
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if (dst_ci_command(state, data, ca_string, len, read)) { // If error
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dst_error_recovery(state);
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dst_ca_comm_err++; // work required here.
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} else {
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break;
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}
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}
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if(dst_ca_comm_err == RETRIES)
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return -EIO;
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return 0;
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}
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static int ca_get_app_info(struct dst_state *state)
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{
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int length, str_length;
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static u8 command[8] = {0x07, 0x40, 0x01, 0x00, 0x01, 0x00, 0x00, 0xff};
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put_checksum(&command[0], command[0]);
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if ((dst_put_ci(state, command, sizeof(command), state->messages, GET_REPLY)) < 0) {
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dprintk(verbose, DST_CA_ERROR, 1, " -->dst_put_ci FAILED !");
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return -EIO;
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}
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dprintk(verbose, DST_CA_INFO, 1, " -->dst_put_ci SUCCESS !");
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dprintk(verbose, DST_CA_INFO, 1, " ================================ CI Module Application Info ======================================");
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dprintk(verbose, DST_CA_INFO, 1, " Application Type=[%d], Application Vendor=[%d], Vendor Code=[%d]\n%s: Application info=[%s]",
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state->messages[7], (state->messages[8] << 8) | state->messages[9],
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(state->messages[10] << 8) | state->messages[11], __func__, (char *)(&state->messages[12]));
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dprintk(verbose, DST_CA_INFO, 1, " ==================================================================================================");
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// Transform dst message to correct application_info message
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length = state->messages[5];
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str_length = length - 6;
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if (str_length < 0) {
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str_length = 0;
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dprintk(verbose, DST_CA_ERROR, 1, "Invalid string length returned in ca_get_app_info(). Recovering.");
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}
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// First, the command and length fields
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put_command_and_length(&state->messages[0], CA_APP_INFO, length);
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// Copy application_type, application_manufacturer and manufacturer_code
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memmove(&state->messages[4], &state->messages[7], 5);
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// Set string length and copy string
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state->messages[9] = str_length;
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memmove(&state->messages[10], &state->messages[12], str_length);
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return 0;
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}
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static int ca_get_ca_info(struct dst_state *state)
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{
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int srcPtr, dstPtr, i, num_ids;
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static u8 slot_command[8] = {0x07, 0x40, 0x00, 0x00, 0x02, 0x00, 0x00, 0xff};
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const int in_system_id_pos = 8, out_system_id_pos = 4, in_num_ids_pos = 7;
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put_checksum(&slot_command[0], slot_command[0]);
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if ((dst_put_ci(state, slot_command, sizeof (slot_command), state->messages, GET_REPLY)) < 0) {
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dprintk(verbose, DST_CA_ERROR, 1, " -->dst_put_ci FAILED !");
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return -EIO;
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}
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dprintk(verbose, DST_CA_INFO, 1, " -->dst_put_ci SUCCESS !");
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// Print raw data
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dprintk(verbose, DST_CA_INFO, 0, " DST data = [");
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for (i = 0; i < state->messages[0] + 1; i++) {
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dprintk(verbose, DST_CA_INFO, 0, " 0x%02x", state->messages[i]);
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}
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dprintk(verbose, DST_CA_INFO, 0, "]\n");
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// Set the command and length of the output
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num_ids = state->messages[in_num_ids_pos];
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if (num_ids >= 100) {
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num_ids = 100;
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dprintk(verbose, DST_CA_ERROR, 1, "Invalid number of ids (>100). Recovering.");
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}
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put_command_and_length(&state->messages[0], CA_INFO, num_ids * 2);
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dprintk(verbose, DST_CA_INFO, 0, " CA_INFO = [");
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srcPtr = in_system_id_pos;
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dstPtr = out_system_id_pos;
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for(i = 0; i < num_ids; i++) {
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dprintk(verbose, DST_CA_INFO, 0, " 0x%02x%02x", state->messages[srcPtr + 0], state->messages[srcPtr + 1]);
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// Append to output
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state->messages[dstPtr + 0] = state->messages[srcPtr + 0];
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state->messages[dstPtr + 1] = state->messages[srcPtr + 1];
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srcPtr += 2;
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dstPtr += 2;
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}
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dprintk(verbose, DST_CA_INFO, 0, "]\n");
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return 0;
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}
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static int ca_get_slot_caps(struct dst_state *state, struct ca_caps *p_ca_caps, void __user *arg)
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{
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int i;
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u8 slot_cap[256];
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static u8 slot_command[8] = {0x07, 0x40, 0x02, 0x00, 0x02, 0x00, 0x00, 0xff};
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put_checksum(&slot_command[0], slot_command[0]);
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if ((dst_put_ci(state, slot_command, sizeof (slot_command), slot_cap, GET_REPLY)) < 0) {
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dprintk(verbose, DST_CA_ERROR, 1, " -->dst_put_ci FAILED !");
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return -EIO;
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}
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dprintk(verbose, DST_CA_NOTICE, 1, " -->dst_put_ci SUCCESS !");
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/* Will implement the rest soon */
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dprintk(verbose, DST_CA_INFO, 1, " Slot cap = [%d]", slot_cap[7]);
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dprintk(verbose, DST_CA_INFO, 0, "===================================\n");
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for (i = 0; i < slot_cap[0] + 1; i++)
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dprintk(verbose, DST_CA_INFO, 0, " %d", slot_cap[i]);
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dprintk(verbose, DST_CA_INFO, 0, "\n");
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p_ca_caps->slot_num = 1;
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p_ca_caps->slot_type = 1;
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p_ca_caps->descr_num = slot_cap[7];
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p_ca_caps->descr_type = 1;
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if (copy_to_user(arg, p_ca_caps, sizeof (struct ca_caps)))
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return -EFAULT;
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return 0;
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}
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/* Need some more work */
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static int ca_get_slot_descr(struct dst_state *state, struct ca_msg *p_ca_message, void __user *arg)
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{
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return -EOPNOTSUPP;
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}
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static int ca_get_slot_info(struct dst_state *state, struct ca_slot_info *p_ca_slot_info, void __user *arg)
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{
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int i;
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static u8 slot_command[8] = {0x00, 0x05, 0x00, 0x00, 0x00, 0x00, 0x00, 0xff};
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u8 *slot_info = state->messages;
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put_checksum(&slot_command[0], 7);
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if ((dst_put_ci(state, slot_command, sizeof (slot_command), slot_info, GET_REPLY)) < 0) {
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dprintk(verbose, DST_CA_ERROR, 1, " -->dst_put_ci FAILED !");
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return -EIO;
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}
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dprintk(verbose, DST_CA_INFO, 1, " -->dst_put_ci SUCCESS !");
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/* Will implement the rest soon */
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dprintk(verbose, DST_CA_INFO, 1, " Slot info = [%d]", slot_info[3]);
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dprintk(verbose, DST_CA_INFO, 0, "===================================\n");
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for (i = 0; i < 8; i++)
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dprintk(verbose, DST_CA_INFO, 0, " %d", slot_info[i]);
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dprintk(verbose, DST_CA_INFO, 0, "\n");
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if (slot_info[4] & 0x80) {
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p_ca_slot_info->flags = CA_CI_MODULE_PRESENT;
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p_ca_slot_info->num = 1;
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p_ca_slot_info->type = CA_CI;
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} else if (slot_info[4] & 0x40) {
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p_ca_slot_info->flags = CA_CI_MODULE_READY;
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p_ca_slot_info->num = 1;
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p_ca_slot_info->type = CA_CI;
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} else
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p_ca_slot_info->flags = 0;
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if (copy_to_user(arg, p_ca_slot_info, sizeof (struct ca_slot_info)))
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return -EFAULT;
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return 0;
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}
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static int ca_get_message(struct dst_state *state, struct ca_msg *p_ca_message, void __user *arg)
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{
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u8 i = 0;
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u32 command = 0;
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if (copy_from_user(p_ca_message, arg, sizeof (struct ca_msg)))
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return -EFAULT;
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dprintk(verbose, DST_CA_NOTICE, 1, " Message = [%*ph]",
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3, p_ca_message->msg);
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for (i = 0; i < 3; i++) {
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command = command | p_ca_message->msg[i];
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if (i < 2)
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command = command << 8;
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}
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dprintk(verbose, DST_CA_NOTICE, 1, " Command=[0x%x]", command);
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switch (command) {
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case CA_APP_INFO:
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memcpy(p_ca_message->msg, state->messages, 128);
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if (copy_to_user(arg, p_ca_message, sizeof (struct ca_msg)) )
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return -EFAULT;
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break;
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case CA_INFO:
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memcpy(p_ca_message->msg, state->messages, 128);
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if (copy_to_user(arg, p_ca_message, sizeof (struct ca_msg)) )
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return -EFAULT;
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break;
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}
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return 0;
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}
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static int handle_dst_tag(struct dst_state *state, struct ca_msg *p_ca_message, struct ca_msg *hw_buffer, u32 length)
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{
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if (state->dst_hw_cap & DST_TYPE_HAS_SESSION) {
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hw_buffer->msg[2] = p_ca_message->msg[1]; /* MSB */
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hw_buffer->msg[3] = p_ca_message->msg[2]; /* LSB */
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} else {
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if (length > 247) {
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dprintk(verbose, DST_CA_ERROR, 1, " Message too long ! *** Bailing Out *** !");
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return -EIO;
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}
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hw_buffer->msg[0] = (length & 0xff) + 7;
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hw_buffer->msg[1] = 0x40;
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|
|
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 -EIO;
|
||
|
|
}
|
||
|
|
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 -EIO;
|
||
|
|
}
|
||
|
|
|
||
|
|
/* 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 -EIO;
|
||
|
|
}
|
||
|
|
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;
|
||
|
|
u32 command;
|
||
|
|
struct ca_msg *hw_buffer;
|
||
|
|
int result = 0;
|
||
|
|
|
||
|
|
hw_buffer = kmalloc(sizeof(*hw_buffer), GFP_KERNEL);
|
||
|
|
if (!hw_buffer)
|
||
|
|
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;
|
||
|
|
}
|
||
|
|
|
||
|
|
/* 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) {
|
||
|
|
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");
|
||
|
|
result = ca_send_message(state, p_ca_message, arg);
|
||
|
|
|
||
|
|
if (result < 0) {
|
||
|
|
dprintk(verbose, DST_CA_ERROR, 1, " -->CA_SEND_MSG Failed !");
|
||
|
|
goto free_mem_and_exit;
|
||
|
|
}
|
||
|
|
break;
|
||
|
|
case CA_GET_MSG:
|
||
|
|
dprintk(verbose, DST_CA_INFO, 1, " Getting message");
|
||
|
|
result = ca_get_message(state, p_ca_message, arg);
|
||
|
|
if (result < 0) {
|
||
|
|
dprintk(verbose, DST_CA_ERROR, 1, " -->CA_GET_MSG Failed !");
|
||
|
|
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");
|
||
|
|
result = ca_get_slot_info(state, p_ca_slot_info, arg);
|
||
|
|
if (result < 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");
|
||
|
|
result = ca_get_slot_caps(state, p_ca_caps, arg);
|
||
|
|
if (result < 0) {
|
||
|
|
dprintk(verbose, DST_CA_ERROR, 1, " -->CA_GET_CAP Failed !");
|
||
|
|
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");
|
||
|
|
result = ca_get_slot_descr(state, p_ca_message, arg);
|
||
|
|
if (result < 0) {
|
||
|
|
dprintk(verbose, DST_CA_ERROR, 1, " -->CA_GET_DESCR_INFO Failed !");
|
||
|
|
goto free_mem_and_exit;
|
||
|
|
}
|
||
|
|
dprintk(verbose, DST_CA_INFO, 1, " -->CA_GET_DESCR_INFO Success !");
|
||
|
|
break;
|
||
|
|
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);
|
||
|
|
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
static int dst_ca_release(struct inode *inode, struct file *file)
|
||
|
|
{
|
||
|
|
dprintk(verbose, DST_CA_DEBUG, 1, " Device closed.");
|
||
|
|
|
||
|
|
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) == 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");
|