1 /* 2 * Copyright (C) 2017 BlueKitchen GmbH 3 * 4 * Redistribution and use in source and binary forms, with or without 5 * modification, are permitted provided that the following conditions 6 * are met: 7 * 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 3. Neither the name of the copyright holders nor the names of 14 * contributors may be used to endorse or promote products derived 15 * from this software without specific prior written permission. 16 * 4. Any redistribution, use, or modification is done solely for 17 * personal benefit and not for any commercial purpose or for 18 * monetary gain. 19 * 20 * THIS SOFTWARE IS PROVIDED BY BLUEKITCHEN GMBH AND CONTRIBUTORS 21 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 22 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS 23 * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL MATTHIAS 24 * RINGWALD OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, 25 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, 26 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS 27 * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED 28 * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, 29 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF 30 * THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 31 * SUCH DAMAGE. 32 * 33 * Please inquire about commercial licensing options at 34 * [email protected] 35 * 36 */ 37 38 #define BTSTACK_FILE__ "btstack_chipset_bcm_download_firmware.c" 39 40 // download firmware implementation 41 // requires hci_dump 42 // supports higher baudrate for patch upload 43 44 #include <string.h> 45 46 #include "hci_dump.h" 47 #include "btstack_chipset_bcm.h" 48 #include "btstack_chipset_bcm_download_firmware.h" 49 #include "bluetooth.h" 50 #include "btstack_debug.h" 51 #include "btstack_chipset.h" 52 53 static void bcm_send_hci_baudrate(void); 54 static void bcm_send_next_init_script_command(void); 55 static void bcm_set_local_baudrate(void); 56 static void bcm_w4_command_complete(void); 57 58 static const btstack_uart_block_t * uart_driver; 59 static const btstack_chipset_t * chipset; 60 61 static uint8_t response_buffer[260]; 62 static uint8_t command_buffer[260]; 63 64 static const int hci_command_complete_len = 7; 65 static const uint8_t hci_reset_cmd[] = { 0x03, 0x0c, 0x00 }; 66 // static const uint8_t hci_update_baud_rate[] = { 0x01, 0x18, 0xfc, 0x06, 0x00, 0x00,0x00, 0x00, 0x00, 0x00 }; 67 static void (*download_complete)(int result); 68 static int baudrate; 69 70 static void bcm_send_prepared_command(void){ 71 uart_driver->receive_block(&response_buffer[0], hci_command_complete_len); 72 int size = 1 + 3 + command_buffer[3]; 73 command_buffer[0] = 1; 74 hci_dump_packet(HCI_COMMAND_DATA_PACKET, 0, &command_buffer[1], size-1); 75 uart_driver->send_block(command_buffer, size); 76 } 77 78 static void bcm_send_hci_reset(void){ 79 if (baudrate == 0 || baudrate == 115200){ 80 uart_driver->set_block_received(&bcm_w4_command_complete); 81 } else { 82 uart_driver->set_block_received(&bcm_send_hci_baudrate); 83 } 84 log_info("bcm: send HCI Reset"); 85 uart_driver->receive_block(&response_buffer[0], hci_command_complete_len); 86 memcpy(&command_buffer[1], hci_reset_cmd, sizeof(hci_reset_cmd)); 87 bcm_send_prepared_command(); 88 } 89 90 static void bcm_send_hci_baudrate(void){ 91 hci_dump_packet(HCI_EVENT_PACKET, 0, &response_buffer[1], hci_command_complete_len-1); 92 chipset->set_baudrate_command(baudrate, &command_buffer[1]); 93 uart_driver->set_block_received(&bcm_set_local_baudrate); 94 uart_driver->receive_block(&response_buffer[0], hci_command_complete_len); 95 log_info("bcm: send baud rate command"); 96 bcm_send_prepared_command(); 97 } 98 99 static void bcm_set_local_baudrate(void){ 100 hci_dump_packet(HCI_EVENT_PACKET, 0, &response_buffer[1], hci_command_complete_len-1); 101 uart_driver->set_baudrate(baudrate); 102 uart_driver->set_block_received(&bcm_w4_command_complete); 103 bcm_send_next_init_script_command(); 104 } 105 106 static void bcm_w4_command_complete(void){ 107 hci_dump_packet(HCI_EVENT_PACKET, 0, &response_buffer[1], hci_command_complete_len-1); 108 bcm_send_next_init_script_command(); 109 } 110 111 static void bcm_send_next_init_script_command(void){ 112 int res = chipset->next_command(&command_buffer[1]); 113 switch (res){ 114 case BTSTACK_CHIPSET_VALID_COMMAND: 115 bcm_send_prepared_command(); 116 break; 117 case BTSTACK_CHIPSET_DONE: 118 log_info("bcm: init script done"); 119 // disable init script for main startup 120 btstack_chipset_bcm_enable_init_script(0); 121 // reset baudreate to default 122 uart_driver->set_baudrate(115200); 123 // notify main 124 download_complete(0); 125 break; 126 default: 127 break; 128 } 129 } 130 131 /** 132 * @brief Download firmware via uart_driver 133 * @param uart_driver -- already initialized 134 * @param done callback. 0 = Success 135 */ 136 137 void btstack_chipset_bcm_download_firmware_with_uart(const btstack_uart_t * the_uart_driver, int baudrate_upload, void (*done)(int result)){ 138 // 139 uart_driver = the_uart_driver; 140 chipset = btstack_chipset_bcm_instance(); 141 baudrate = baudrate_upload; 142 download_complete = done; 143 btstack_chipset_bcm_enable_init_script(1); 144 145 int res = uart_driver->open(); 146 if (res) { 147 log_error("uart_block init failed %u", res); 148 download_complete(res); 149 return; 150 } 151 152 bcm_send_hci_reset(); 153 } 154 void btstack_chipset_bcm_download_firmware(const btstack_uart_block_t * the_uart_driver, int baudrate_upload, void (*done)(int result)) { 155 btstack_chipset_bcm_download_firmware_with_uart((const btstack_uart_t *) the_uart_driver, baudrate_upload, done); 156 } 157