1 /* 2 * Copyright (C) 2019 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__ "hal_entry.c" 39 40 #include "../src/synergy_gen/hal_data.h" 41 42 // hal_time_ms.h implementation 43 #include "hal_time_ms.h" 44 45 volatile uint32_t time_ms; 46 47 void timer_1ms(timer_callback_args_t *p_args){ 48 (void) p_args; 49 time_ms++; 50 } 51 52 uint32_t hal_time_ms(void){ 53 return time_ms; 54 } 55 56 // hal_cpu.h implementation 57 #include "hal_cpu.h" 58 59 void hal_cpu_disable_irqs(void){ 60 __disable_irq(); 61 } 62 63 void hal_cpu_enable_irqs(void){ 64 __enable_irq(); 65 } 66 67 void hal_cpu_enable_irqs_and_sleep(void){ 68 __enable_irq(); 69 __asm__("wfe"); // go to sleep if event flag isn't set. if set, just clear it. IRQs set event flag 70 } 71 72 // hal_uart_dma.h implementation 73 #include "hal_uart_dma.h" 74 #include "btstack_debug.h" 75 #include "btstack_ring_buffer.h" 76 #include "btstack_util.h" 77 78 #define nShutdown_pin IOPORT_PORT_01_PIN_12 79 #define rts_pin IOPORT_PORT_03_PIN_03 80 81 // handlers 82 static void (*rx_done_handler)(void); 83 static void (*tx_done_handler)(void); 84 static void (*cts_irq_handler)(void); 85 86 // ringbuffer to deal with eager fifo 87 static uint8_t rx_ring_buffer_storage[64]; 88 static btstack_ring_buffer_t rx_ring_buffer; 89 90 static volatile uint8_t * rx_buffer; 91 static volatile uint16_t rx_len; 92 93 void hal_uart_dma_set_sleep(uint8_t sleep){ 94 // TODO: configure RTS as GPIO and raise 95 (void) sleep; 96 } 97 98 static void nShutdown_low(void){ 99 g_ioport.p_api->pinWrite(nShutdown_pin, IOPORT_LEVEL_LOW); 100 } 101 102 static void nShutdown_high(void){ 103 g_ioport.p_api->pinWrite(nShutdown_pin, IOPORT_LEVEL_HIGH); 104 } 105 106 // reset Bluetooth using n_shutdown 107 static void bluetooth_power_cycle(void){ 108 nShutdown_low(); 109 R_BSP_SoftwareDelay( 250, BSP_DELAY_UNITS_MILLISECONDS); 110 nShutdown_high(); 111 R_BSP_SoftwareDelay( 250, BSP_DELAY_UNITS_MILLISECONDS); 112 } 113 114 void user_uart_callback(uart_callback_args_t *p_args){ 115 switch (p_args->event){ 116 case UART_EVENT_TX_DATA_EMPTY: 117 (*tx_done_handler)(); 118 break; 119 case UART_EVENT_RX_CHAR: 120 if (rx_len > 0){ 121 *rx_buffer++ = (uint8_t) p_args->data; 122 rx_len--; 123 if (rx_len == 0) { 124 g_ioport.p_api->pinWrite(rts_pin, IOPORT_LEVEL_HIGH); 125 (*rx_done_handler)(); 126 } 127 } else { 128 // store in ring buffer 129 uint8_t data = (uint8_t) p_args->data; 130 btstack_ring_buffer_write(&rx_ring_buffer, &data, 1); 131 } 132 break; 133 case UART_EVENT_ERR_RXBUF_OVERFLOW: 134 log_info("UART_EVENT_ERR_RXBUF_OVERFLOW"); 135 break; 136 default: 137 break; 138 } 139 } 140 141 void hal_uart_dma_init(void){ 142 bluetooth_power_cycle(); 143 btstack_ring_buffer_init(&rx_ring_buffer, rx_ring_buffer_storage, sizeof(rx_ring_buffer_storage)); 144 } 145 146 void hal_uart_dma_set_block_received( void (*the_block_handler)(void)){ 147 rx_done_handler = the_block_handler; 148 } 149 150 void hal_uart_dma_set_block_sent( void (*the_block_handler)(void)){ 151 tx_done_handler = the_block_handler; 152 } 153 154 void hal_uart_dma_set_csr_irq_handler( void (*the_irq_handler)(void)){ 155 // TODO: configure CTS GPIO as edge falling edge trigger 156 cts_irq_handler = the_irq_handler; 157 } 158 159 int hal_uart_dma_set_baud(uint32_t baud){ 160 ssp_err_t error = g_uart0.p_api->baudSet(g_uart0.p_ctrl, baud); 161 if (error != SSP_SUCCESS){ 162 log_error("hal_uart_dma_set_baud error 0x%x", error); 163 } 164 return 0; 165 } 166 167 void hal_uart_dma_send_block(const uint8_t *data, uint16_t size){ 168 g_uart0.p_api->write(g_uart0.p_ctrl, data, size); 169 } 170 171 void hal_uart_dma_receive_block(uint8_t *data, uint16_t size){ 172 // fill from ring buffer 173 uint32_t number_of_bytes_read = 0; 174 btstack_ring_buffer_read(&rx_ring_buffer, data, size, &number_of_bytes_read); 175 size -= number_of_bytes_read; 176 data += number_of_bytes_read; 177 if (size == 0){ 178 (*rx_done_handler)(); 179 return; 180 } 181 182 // Clear RTS and read from UART 183 rx_buffer = data; 184 rx_len = size; 185 g_ioport.p_api->pinWrite(rts_pin, IOPORT_LEVEL_LOW); 186 } 187 188 // actual port 189 190 #include "bluetooth.h" 191 #include "bluetooth_company_id.h" 192 #include "btstack_chipset_cc256x.h" 193 #include "btstack_defines.h" 194 #include "btstack_event.h" 195 #include "btstack_run_loop_embedded.h" 196 #include "btstack_tlv.h" 197 #include "btstack_tlv_flash_bank.h" 198 #include "hci.h" 199 #include "hci_cmd.h" 200 #include "hci_dump.h" 201 #include "hci_dump_embedded_stdout.h" 202 #include "hci_transport.h" 203 #include "btstack_memory.h" 204 #include "ble/le_device_db_tlv.h" 205 #include "classic/btstack_link_key_db_tlv.h" 206 #include "hal_flash_bank_synergy.h" 207 208 static void packet_handler (uint8_t packet_type, uint16_t channel, uint8_t *packet, uint16_t size){ 209 UNUSED(size); 210 UNUSED(channel); 211 bd_addr_t local_addr; 212 if (packet_type != HCI_EVENT_PACKET) return; 213 switch(hci_event_packet_get_type(packet)){ 214 case BTSTACK_EVENT_STATE: 215 if (btstack_event_state_get_state(packet) != HCI_STATE_WORKING) return; 216 gap_local_bd_addr(local_addr); 217 printf("BTstack up and running on %s.\n", bd_addr_to_str(local_addr)); 218 break; 219 case HCI_EVENT_COMMAND_COMPLETE: 220 if (HCI_EVENT_IS_COMMAND_COMPLETE(packet, hci_read_local_version_information)){ 221 uint16_t manufacturer = little_endian_read_16(packet, 10); 222 uint16_t lmp_subversion = little_endian_read_16(packet, 12); 223 // assert manufacturer is TI 224 if (manufacturer != BLUETOOTH_COMPANY_ID_TEXAS_INSTRUMENTS_INC){ 225 printf("ERROR: Expected Bluetooth Chipset from TI but got manufacturer 0x%04x\n", manufacturer); 226 break; 227 } 228 // assert correct init script is used based on expected lmp_subversion 229 if (lmp_subversion != btstack_chipset_cc256x_lmp_subversion()){ 230 printf("Error: LMP Subversion does not match initscript! "); 231 printf("Your initscripts is for %s chipset\n", btstack_chipset_cc256x_lmp_subversion() < lmp_subversion ? "an older" : "a newer"); 232 printf("Please update Makefile to include the appropriate bluetooth_init_cc256???.c file\n"); 233 break; 234 } 235 } 236 break; 237 default: 238 break; 239 } 240 } 241 242 // port.c 243 static btstack_packet_callback_registration_t hci_event_callback_registration; 244 static btstack_tlv_flash_bank_t btstack_tlv_flash_bank_context; 245 246 static hal_flash_bank_synergy_t hal_flash_bank_context; 247 #define HAL_FLASH_BANK_SIZE ( 10224 ) 248 #define HAL_FLASH_BANK_0_ADDR ( 0x40100000 ) 249 #define HAL_FLASH_BANK_1_ADDR ( 0x40100400 ) 250 251 static const hci_transport_config_uart_t config = { 252 HCI_TRANSPORT_CONFIG_UART, 253 115200, 254 2000000, 255 1, 256 NULL 257 }; 258 259 int btstack_main(int argc, const char * argv[]); 260 void hal_entry(void) { 261 262 // init hal 263 g_hal_init(); 264 265 // open uart, timer, flash 266 g_uart0.p_api->open(g_uart0.p_ctrl, g_uart0.p_cfg); 267 g_timer0.p_api->open(g_timer0.p_ctrl, g_timer0.p_cfg); 268 g_flash0.p_api->open(g_flash0.p_ctrl, g_flash0.p_cfg); 269 270 // start with BTstack init - especially configure HCI Transport 271 btstack_memory_init(); 272 btstack_run_loop_init(btstack_run_loop_embedded_get_instance()); 273 274 // enable HCI logging 275 // hci_dump_init(hci_dump_embedded_stdout_get_instance()); 276 277 // init HCI 278 hci_init(hci_transport_h4_instance(btstack_uart_block_embedded_instance()), (void*) &config); 279 hci_set_chipset(btstack_chipset_cc256x_instance()); 280 281 // setup TLV Flash Sector implementation 282 const hal_flash_bank_t * hal_flash_bank_impl = hal_flash_bank_synergy_init_instance( 283 &hal_flash_bank_context, 284 HAL_FLASH_BANK_SIZE, 285 HAL_FLASH_BANK_0_ADDR, 286 HAL_FLASH_BANK_1_ADDR); 287 288 const btstack_tlv_t * btstack_tlv_impl = btstack_tlv_flash_bank_init_instance( 289 &btstack_tlv_flash_bank_context, 290 hal_flash_bank_impl, 291 &hal_flash_bank_context); 292 293 // setup global tlv 294 btstack_tlv_set_instance(btstack_tlv_impl, &btstack_tlv_flash_bank_context); 295 296 // setup Link Key DB using TLV 297 const btstack_link_key_db_t * btstack_link_key_db = btstack_link_key_db_tlv_get_instance(btstack_tlv_impl, &btstack_tlv_flash_bank_context); 298 hci_set_link_key_db(btstack_link_key_db); 299 300 // setup LE Device DB using TLV 301 le_device_db_tlv_configure(btstack_tlv_impl, &btstack_tlv_flash_bank_context); 302 303 #ifdef HAVE_HAL_AUDIO 304 // setup audio 305 btstack_audio_sink_set_instance(btstack_audio_embedded_sink_get_instance()); 306 btstack_audio_source_set_instance(btstack_audio_embedded_source_get_instance()); 307 #endif 308 309 // inform about BTstack state 310 hci_event_callback_registration.callback = &packet_handler; 311 hci_add_event_handler(&hci_event_callback_registration); 312 313 // hand over to btstack embedded code 314 btstack_main(0, NULL); 315 316 // go 317 btstack_run_loop_execute(); 318 } 319