| /* |
| 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; |
| |
| 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; |
| } |
| |
| /* 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) == 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"); |