| /* |
| * Copyright (C) 2019 sysmocom -s.f.m.c. GmbH, Author: Kevin Redon <kredon@sysmocom.de> |
| * |
| * 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. |
| */ |
| |
| #include <stdlib.h> |
| #include <inttypes.h> |
| #include <stdio.h> |
| #include <math.h> |
| #include <parts.h> |
| #include <errno.h> |
| |
| #include <osmocom/core/utils.h> |
| #include <osmocom/core/timer.h> |
| |
| #include <hal_cache.h> |
| #include <hri_port_e54.h> |
| |
| #include "atmel_start.h" |
| #include "atmel_start_pins.h" |
| #include "config/hpl_gclk_config.h" |
| |
| #include "i2c_bitbang.h" |
| #include "octsim_i2c.h" |
| #include "ncn8025.h" |
| #include "iso7816_3.h" |
| |
| #include "command.h" |
| |
| // TODO put declaration in more global file |
| // TODO for now SIM7 is not present because used for debug |
| static struct usart_async_descriptor* SIM_peripheral_descriptors[] = {&SIM0, &SIM1, &SIM2, &SIM3, &SIM4, &SIM5, &SIM6, NULL}; |
| #include "ccid_device.h" |
| #include "usb_descriptors.h" |
| |
| /** number of bytes transmitted on the SIM peripheral */ |
| static volatile bool SIM_tx_count[8]; |
| |
| static void SIM_rx_cb(const struct usart_async_descriptor *const io_descr) |
| { |
| } |
| |
| /** called when the transmission is complete |
| * e.g. this is when the byte has been sent and there is no data to transmit anymore |
| */ |
| static void SIM_tx_cb(const struct usart_async_descriptor *const io_descr) |
| { |
| // find slotnr for corresponding USART |
| uint8_t slotnr; |
| for (slotnr = 0; slotnr < ARRAY_SIZE(SIM_peripheral_descriptors) && SIM_peripheral_descriptors[slotnr] != io_descr; slotnr++); |
| |
| // set flag |
| if (slotnr < ARRAY_SIZE(SIM_peripheral_descriptors)) { |
| SIM_tx_count[slotnr] = true; |
| } |
| } |
| |
| /** possible clock sources for the SERCOM peripheral |
| * warning: the definition must match the GCLK configuration |
| */ |
| static const uint8_t sercom_glck_sources[] = {GCLK_PCHCTRL_GEN_GCLK2_Val, GCLK_PCHCTRL_GEN_GCLK4_Val, GCLK_PCHCTRL_GEN_GCLK6_Val}; |
| |
| /** possible clock frequencies in MHz for the SERCOM peripheral |
| * warning: the definition must match the GCLK configuration |
| */ |
| static const double sercom_glck_freqs[] = {100E6 / CONF_GCLK_GEN_2_DIV, 100E6 / CONF_GCLK_GEN_4_DIV, 120E6 / CONF_GCLK_GEN_6_DIV}; |
| |
| /** the GCLK ID for the SERCOM SIM peripherals |
| * @note: used as index for PCHCTRL |
| */ |
| static const uint8_t SIM_peripheral_GCLK_ID[] = {SERCOM0_GCLK_ID_CORE, SERCOM1_GCLK_ID_CORE, SERCOM2_GCLK_ID_CORE, SERCOM3_GCLK_ID_CORE, SERCOM4_GCLK_ID_CORE, SERCOM5_GCLK_ID_CORE, SERCOM6_GCLK_ID_CORE, SERCOM7_GCLK_ID_CORE}; |
| |
| static void ccid_app_init(void); |
| |
| static void board_init() |
| { |
| int i; |
| |
| for (i = 0; i < 4; i++) |
| i2c_init(&i2c[i]); |
| |
| for (i = 0; i < 8; i++) |
| ncn8025_init(i); |
| |
| cache_init(); |
| cache_enable(CMCC); |
| calendar_enable(&CALENDAR_0); |
| |
| /* increase drive strength of 20Mhz SIM clock output to 8mA |
| * (there are 8 inputs + traces to drive!) */ |
| hri_port_set_PINCFG_DRVSTR_bit(PORT, 0, 11); |
| |
| // enable SIM interfaces |
| for (uint8_t i = 0; i < ARRAY_SIZE(SIM_peripheral_descriptors); i++) { |
| if (NULL == SIM_peripheral_descriptors[i]) { |
| continue; |
| } |
| usart_async_register_callback(SIM_peripheral_descriptors[i], USART_ASYNC_RXC_CB, SIM_rx_cb); // required for RX to work, even if the callback does nothing |
| usart_async_register_callback(SIM_peripheral_descriptors[i], USART_ASYNC_TXC_CB, SIM_tx_cb); // to count the number of bytes transmitted since we are using it asynchronously |
| usart_async_enable(SIM_peripheral_descriptors[i]); |
| } |
| |
| ccid_app_init(); |
| } |
| |
| /*********************************************************************** |
| * CCID Driver integration |
| ***********************************************************************/ |
| |
| #include <osmocom/core/linuxlist.h> |
| #include <osmocom/core/msgb.h> |
| #include "linuxlist_atomic.h" |
| #include "ccid_df.h" |
| |
| struct usb_ep_q { |
| const char *name; |
| /* msgb queue of pending to-be-transmitted (IN/IRQ) or completed received (OUT) |
| * USB transfers */ |
| struct llist_head list; |
| /* currently ongoing/processed msgb (USB transmit or receive */ |
| struct msgb *in_progress; |
| }; |
| |
| struct ccid_state { |
| /* msgb queue of free msgs */ |
| struct llist_head free_q; |
| |
| /* msgb queue of pending to-be-transmitted (IN EP) */ |
| struct usb_ep_q in_ep; |
| /* msgb queue of pending to-be-transmitted (IRQ EP) */ |
| struct usb_ep_q irq_ep; |
| /* msgb queue of completed received (OUT EP) */ |
| struct usb_ep_q out_ep; |
| |
| /* bit-mask of card-insert status, as determined from NCN8025 IRQ output */ |
| uint8_t card_insert_mask; |
| }; |
| static struct ccid_state g_ccid_s; |
| |
| static void ccid_out_read_compl(const uint8_t ep, enum usb_xfer_code code, uint32_t transferred); |
| static void ccid_in_write_compl(const uint8_t ep, enum usb_xfer_code code, uint32_t transferred); |
| static void ccid_irq_write_compl(const uint8_t ep, enum usb_xfer_code code, uint32_t transferred); |
| |
| static void usb_ep_q_init(struct usb_ep_q *ep_q, const char *name) |
| { |
| ep_q->name = name; |
| INIT_LLIST_HEAD(&ep_q->list); |
| ep_q->in_progress = NULL; |
| } |
| |
| static void ccid_app_init(void) |
| { |
| /* initialize data structures */ |
| INIT_LLIST_HEAD(&g_ccid_s.free_q); |
| usb_ep_q_init(&g_ccid_s.in_ep, "IN"); |
| usb_ep_q_init(&g_ccid_s.irq_ep, "IRQ"); |
| usb_ep_q_init(&g_ccid_s.out_ep, "OUT"); |
| |
| /* OUT endpoint read complete callback (irq context) */ |
| ccid_df_register_callback(CCID_DF_CB_READ_OUT, (FUNC_PTR)&ccid_out_read_compl); |
| /* IN endpoint write complete callback (irq context) */ |
| ccid_df_register_callback(CCID_DF_CB_WRITE_IN, (FUNC_PTR)&ccid_in_write_compl); |
| /* IRQ endpoint write complete callback (irq context) */ |
| ccid_df_register_callback(CCID_DF_CB_WRITE_IRQ, (FUNC_PTR)&ccid_irq_write_compl); |
| } |
| |
| /* irqsafe version of msgb_enqueue */ |
| struct msgb *msgb_dequeue_irqsafe(struct llist_head *q) |
| { |
| struct msgb *msg; |
| CRITICAL_SECTION_ENTER() |
| msg = msgb_dequeue(q); |
| CRITICAL_SECTION_LEAVE() |
| return msg; |
| } |
| |
| void msgb_enqueue_irqsafe(struct llist_head *q, struct msgb *msg) |
| { |
| CRITICAL_SECTION_ENTER() |
| msgb_enqueue(q, msg); |
| CRITICAL_SECTION_LEAVE() |
| } |
| |
| /* submit the next pending (if any) message for the IN EP */ |
| static int submit_next_in(void) |
| { |
| struct usb_ep_q *ep_q = &g_ccid_s.in_ep; |
| struct msgb *msg; |
| int rc; |
| |
| OSMO_ASSERT(!ep_q->in_progress); |
| msg = msgb_dequeue_irqsafe(&ep_q->list); |
| if (!msg) |
| return 0; |
| |
| ep_q->in_progress = msg; |
| rc = ccid_df_write_in(msgb_data(msg), msgb_length(msg)); |
| if (rc != ERR_NONE) { |
| printf("EP %s failed: %d\r\n", ep_q->name, rc); |
| return -1; |
| } |
| return 1; |
| |
| } |
| |
| /* submit the next pending (if any) message for the IRQ EP */ |
| static int submit_next_irq(void) |
| { |
| struct usb_ep_q *ep_q = &g_ccid_s.irq_ep; |
| struct msgb *msg; |
| int rc; |
| |
| if (ep_q->in_progress) |
| return 0; |
| |
| msg = msgb_dequeue_irqsafe(&ep_q->list); |
| if (!msg) |
| return 0; |
| |
| ep_q->in_progress = msg; |
| rc = ccid_df_write_irq(msgb_data(msg), msgb_length(msg)); |
| /* may return HALTED/ERROR/DISABLED/BUSY/ERR_PARAM/ERR_FUNC/ERR_DENIED */ |
| if (rc != ERR_NONE) { |
| printf("EP %s failed: %d\r\n", ep_q->name, rc); |
| return -1; |
| } |
| return 1; |
| } |
| |
| static int submit_next_out(void) |
| { |
| struct usb_ep_q *ep_q = &g_ccid_s.out_ep; |
| struct msgb *msg; |
| int rc; |
| |
| OSMO_ASSERT(!ep_q->in_progress); |
| msg = msgb_dequeue_irqsafe(&g_ccid_s.free_q); |
| if (!msg) |
| return -1; |
| ep_q->in_progress = msg; |
| |
| rc = ccid_df_read_out(msgb_data(msg), msgb_tailroom(msg)); |
| if (rc != ERR_NONE) { |
| /* re-add to the list of free msgb's */ |
| llist_add_tail_at(&g_ccid_s.free_q, &msg->list); |
| return 0; |
| } |
| return 1; |
| } |
| |
| /* OUT endpoint read complete callback (irq context) */ |
| static void ccid_out_read_compl(const uint8_t ep, enum usb_xfer_code code, uint32_t transferred) |
| { |
| struct msgb *msg = g_ccid_s.out_ep.in_progress; |
| |
| /* add just-received msg to tail of endpoint queue */ |
| OSMO_ASSERT(msg); |
| /* update msgb with the amount of data received */ |
| msgb_put(msg, transferred); |
| /* append to list of pending-to-be-handed messages */ |
| llist_add_tail_at(&msg->list, &g_ccid_s.out_ep.list); |
| |
| /* submit another [free] msgb to receive the next transfer */ |
| submit_next_out(); |
| } |
| |
| /* IN endpoint write complete callback (irq context) */ |
| static void ccid_in_write_compl(const uint8_t ep, enum usb_xfer_code code, uint32_t transferred) |
| { |
| struct msgb *msg = g_ccid_s.in_ep.in_progress; |
| |
| OSMO_ASSERT(msg); |
| /* return the message back to the queue of free message buffers */ |
| llist_add_tail_at(&msg->list, &g_ccid_s.free_q); |
| g_ccid_s.in_ep.in_progress = NULL; |
| |
| /* submit the next pending to-be-transmitted msgb (if any) */ |
| submit_next_in(); |
| } |
| |
| /* IRQ endpoint write complete callback (irq context) */ |
| static void ccid_irq_write_compl(const uint8_t ep, enum usb_xfer_code code, uint32_t transferred) |
| { |
| struct msgb *msg = g_ccid_s.irq_ep.in_progress; |
| |
| OSMO_ASSERT(msg); |
| /* return the message back to the queue of free message buffers */ |
| llist_add_tail_at(&msg->list, &g_ccid_s.free_q); |
| g_ccid_s.irq_ep.in_progress = NULL; |
| |
| /* submit the next pending to-be-transmitted msgb (if any) */ |
| submit_next_irq(); |
| } |
| |
| #include "ccid_proto.h" |
| static struct msgb *ccid_gen_notify_slot_status(uint8_t old_bm, uint8_t new_bm) |
| { |
| uint8_t statusbytes[2] = {0}; |
| //struct msgb *msg = ccid_msgb_alloc(); |
| struct msgb *msg = msgb_alloc(64, "IRQ"); |
| struct ccid_rdr_to_pc_notify_slot_change *nsc = msgb_put(msg, sizeof(*nsc) + sizeof(statusbytes)); |
| nsc->bMessageType = RDR_to_PC_NotifySlotChange; |
| |
| for(int i = 0; i <8; i++) { |
| uint8_t byteidx = i >> 2; |
| uint8_t old_bit = old_bm & (1 << i); |
| uint8_t new_bit = new_bm & (1 << i); |
| uint8_t bv; |
| if (old_bit == new_bit && new_bit == 0) |
| bv = 0x00; |
| else if (old_bit == new_bit && new_bit == 1) |
| bv = 0x01; |
| else if (old_bit != new_bit && new_bit == 0) |
| bv = 0x02; |
| else |
| bv = 0x03; |
| |
| statusbytes[byteidx] |= bv << ((i % 4) << 1); |
| } |
| |
| memcpy(&nsc->bmSlotCCState, statusbytes, sizeof(statusbytes)); |
| |
| return msg; |
| } |
| |
| /* check if any card detect state has changed */ |
| static void poll_card_detect(void) |
| { |
| uint8_t new_mask = 0; |
| struct msgb *msg; |
| unsigned int i; |
| |
| for (i = 0; i < 8; i++) |
| new_mask |= ncn8025_interrupt_level(i) << i; |
| |
| /* notify the user/host about any changes */ |
| if (g_ccid_s.card_insert_mask != new_mask) { |
| printf("CARD_DET 0x%02x -> 0x%02x\r\n", |
| g_ccid_s.card_insert_mask, new_mask); |
| msg = ccid_gen_notify_slot_status(g_ccid_s.card_insert_mask, new_mask); |
| msgb_enqueue_irqsafe(&g_ccid_s.irq_ep.list, msg); |
| |
| g_ccid_s.card_insert_mask = new_mask; |
| } |
| } |
| |
| |
| |
| /*********************************************************************** |
| * Command Line interface |
| ***********************************************************************/ |
| |
| static int validate_slotnr(int argc, char **argv, int idx) |
| { |
| int slotnr; |
| if (argc < idx+1) { |
| printf("You have to specify the slot number (0..7)\r\n"); |
| return -1; |
| } |
| slotnr = atoi(argv[idx]); |
| if (slotnr < 0 || slotnr > 7) { |
| printf("You have to specify the slot number (0..7)\r\n"); |
| return -1; |
| } |
| return slotnr; |
| } |
| |
| /** change baud rate of card slot |
| * @param[in] slotnr slot number for which the baud rate should be set |
| * @param[in] baudrate baud rate in bps to set |
| * @return if the baud rate has been set, else a parameter is out of range |
| */ |
| static bool slot_set_baudrate(uint8_t slotnr, uint32_t baudrate) |
| { |
| ASSERT(slotnr < ARRAY_SIZE(SIM_peripheral_descriptors)); |
| |
| // calculate the error corresponding to the clock sources |
| uint16_t bauds[ARRAY_SIZE(sercom_glck_freqs)]; |
| double errors[ARRAY_SIZE(sercom_glck_freqs)]; |
| for (uint8_t i = 0; i < ARRAY_SIZE(sercom_glck_freqs); i++) { |
| double freq = sercom_glck_freqs[i]; // remember possible SERCOM frequency |
| uint32_t min = freq / (2 * (255 + 1)); // calculate the minimum baud rate for this frequency |
| uint32_t max = freq / (2 * (0 + 1)); // calculate the maximum baud rate for this frequency |
| if (baudrate < min || baudrate > max) { // baud rate it out of supported range |
| errors[i] = NAN; |
| } else { |
| uint16_t baud = round(freq / (2 * baudrate) - 1); |
| bauds[i] = baud; |
| double actual = freq / (2 * (baud + 1)); |
| errors[i] = fabs(1.0 - (actual / baudrate)); |
| } |
| } |
| |
| // find the smallest error |
| uint8_t best = ARRAY_SIZE(sercom_glck_freqs); |
| for (uint8_t i = 0; i < ARRAY_SIZE(sercom_glck_freqs); i++) { |
| if (isnan(errors[i])) { |
| continue; |
| } |
| if (best >= ARRAY_SIZE(sercom_glck_freqs)) { |
| best = i; |
| } else if (errors[i] < errors[best]) { |
| best = i; |
| } |
| } |
| if (best >= ARRAY_SIZE(sercom_glck_freqs)) { // found no clock supporting this baud rate |
| return false; |
| } |
| |
| // set clock and baud rate |
| struct usart_async_descriptor* slot = SIM_peripheral_descriptors[slotnr]; // get slot |
| if (NULL == slot) { |
| return false; |
| } |
| printf("(%u) switching SERCOM clock to GCLK%u (freq = %lu kHz) and baud rate to %lu bps (baud = %u)\r\n", slotnr, (best + 1) * 2, (uint32_t)(round(sercom_glck_freqs[best] / 1000)), baudrate, bauds[best]); |
| while (!usart_async_is_tx_empty(slot)); // wait for transmission to complete (WARNING no timeout) |
| usart_async_disable(slot); // disable SERCOM peripheral |
| hri_gclk_clear_PCHCTRL_reg(GCLK, SIM_peripheral_GCLK_ID[slotnr], (1 << GCLK_PCHCTRL_CHEN_Pos)); // disable clock for this peripheral |
| while (hri_gclk_get_PCHCTRL_reg(GCLK, SIM_peripheral_GCLK_ID[slotnr], (1 << GCLK_PCHCTRL_CHEN_Pos))); // wait until clock is really disabled |
| // it does not seem we need to completely disable the peripheral using hri_mclk_clear_APBDMASK_SERCOMn_bit |
| hri_gclk_write_PCHCTRL_reg(GCLK, SIM_peripheral_GCLK_ID[slotnr], sercom_glck_sources[best] | (1 << GCLK_PCHCTRL_CHEN_Pos)); // set peripheral core clock and re-enable it |
| usart_async_set_baud_rate(slot, bauds[best]); // set the new baud rate |
| usart_async_enable(slot); // re-enable SERCOM peripheral |
| |
| return true; |
| } |
| |
| /** change ISO baud rate of card slot |
| * @param[in] slotnr slot number for which the baud rate should be set |
| * @param[in] clkdiv can clock divider |
| * @param[in] f clock rate conversion integer F |
| * @param[in] d baud rate adjustment factor D |
| * @return if the baud rate has been set, else a parameter is out of range |
| */ |
| static bool slot_set_isorate(uint8_t slotnr, enum ncn8025_sim_clkdiv clkdiv, uint16_t f, uint8_t d) |
| { |
| // input checks |
| ASSERT(slotnr < ARRAY_SIZE(SIM_peripheral_descriptors)); |
| if (clkdiv != SIM_CLKDIV_1 && clkdiv != SIM_CLKDIV_2 && clkdiv != SIM_CLKDIV_4 && clkdiv != SIM_CLKDIV_8) { |
| return false; |
| } |
| if (!iso7816_3_valid_f(f)) { |
| return false; |
| } |
| if (!iso7816_3_valid_d(d)) { |
| return false; |
| } |
| |
| // set clockdiv |
| struct ncn8025_settings settings; |
| ncn8025_get(slotnr, &settings); |
| if (settings.clkdiv != clkdiv) { |
| settings.clkdiv = clkdiv; |
| ncn8025_set(slotnr, &settings); |
| } |
| |
| // calculate desired frequency |
| uint32_t freq = 20000000UL; // maximum frequency |
| switch (clkdiv) { |
| case SIM_CLKDIV_1: |
| freq /= 1; |
| break; |
| case SIM_CLKDIV_2: |
| freq /= 2; |
| break; |
| case SIM_CLKDIV_4: |
| freq /= 4; |
| break; |
| case SIM_CLKDIV_8: |
| freq /= 8; |
| break; |
| } |
| |
| // set baud rate |
| uint32_t baudrate = (freq * d) / f; // calculate actual baud rate |
| return slot_set_baudrate(slotnr, baudrate); // set baud rate |
| } |
| |
| /** write data to card |
| * @param[in] slotnr slot number on which to send data |
| * @param[in] data data to be transmitted |
| * @param[in] length length of data to be transmitted |
| * @return error code |
| */ |
| static int slot_card_write(uint8_t slotnr, const uint8_t* data, uint16_t length) |
| { |
| // input checks |
| ASSERT(slotnr < ARRAY_SIZE(SIM_peripheral_descriptors)); |
| if (0 == length || NULL == data) { |
| return ERR_INVALID_ARG; |
| } |
| |
| struct usart_async_descriptor* sim = SIM_peripheral_descriptors[slotnr]; |
| ((Sercom *)sim->device.hw)->USART.CTRLB.bit.RXEN = 0; // disable receive (to avoid the echo back) |
| SIM_tx_count[slotnr] = false; // reset TX complete |
| for (uint16_t i = 0; i < length; i++) { // transmit data |
| while(!usart_async_is_tx_empty(sim)); // wait for previous byte to be transmitted (WARNING blocking) |
| if (1 != io_write(&sim->io, &data[i], 1)) { // put but in transmit buffer |
| return ERR_IO; |
| } |
| } |
| while (!SIM_tx_count[slotnr]); // wait until transmission is complete (WARNING blocking) |
| ((Sercom *)sim->device.hw)->USART.CTRLB.bit.RXEN = 1; // enable receive again |
| |
| return ERR_NONE; |
| } |
| |
| /** read data from card |
| * @param[in] slotnr slot number on which to send data |
| * @param[out] data buffer for read data to be stored |
| * @param[in] length length of data to be read |
| * @param[in] wt Waiting Time in ETU |
| * @return error code |
| * TODO fix WT/ETU duration |
| */ |
| static int slot_card_read(uint8_t slotnr, uint8_t* data, uint16_t length, uint32_t wt) |
| { |
| // input checks |
| ASSERT(slotnr < ARRAY_SIZE(SIM_peripheral_descriptors)); |
| if (0 == length || NULL == data) { |
| return ERR_INVALID_ARG; |
| } |
| |
| struct usart_async_descriptor* sim = SIM_peripheral_descriptors[slotnr]; |
| |
| ((Sercom *)sim->device.hw)->USART.CTRLB.bit.RXEN = 1; // ensure RX is enabled |
| uint32_t timeout = wt; // reset waiting time |
| for (uint16_t i = 0; i < length; i++) { // read all data |
| while (timeout && !usart_async_is_rx_not_empty(sim)) { // verify if data is present |
| delay_us(149); // wait for 1 ETU (372 / 1 / 2.5 MHz = 148.8 us) |
| timeout--; |
| } |
| if (0 == timeout) { // timeout reached |
| return ERR_TIMEOUT; |
| } |
| timeout = wt; // reset waiting time |
| if (1 != io_read(&sim->io, &data[i], 1)) { // read one byte |
| return ERR_IO; |
| } |
| } |
| |
| return ERR_NONE; |
| } |
| |
| /** transfer TPDU |
| * @param[in] slotnr slot number on which to transfer the TPDU |
| * @param[in] header TPDU header to send |
| * @param[io] data TPDU data to transfer |
| * @param[in] data_length length of TPDU data to transfer |
| * @param[in] write if the data should be written (true) or read (false) |
| * TODO fix WT |
| * TODO the data length can be deduce from the header |
| */ |
| static int slot_tpdu_xfer(uint8_t slotnr, const uint8_t* header, uint8_t* data, uint16_t data_length, bool write) |
| { |
| // input checks |
| ASSERT(slotnr < ARRAY_SIZE(SIM_peripheral_descriptors)); |
| if (NULL == header || (data_length > 0 && NULL == data)) { |
| return ERR_INVALID_ARG; |
| } |
| |
| int rc; |
| struct usart_async_descriptor* sim = SIM_peripheral_descriptors[slotnr]; // get USART peripheral |
| usart_async_flush_rx_buffer(sim); // flush RX buffer to start from scratch |
| |
| // send command header |
| printf("(%d) TPDU: ", slotnr); |
| for (uint8_t i = 0; i < 5; i++) { |
| printf("%02x ", header[i]); |
| } |
| rc = slot_card_write(slotnr, header, 5); // transmit header |
| if (ERR_NONE != rc) { |
| printf("error in command header transmit (errno = %d)\r\n", rc); |
| return rc; |
| } |
| |
| // read procedure byte, and handle data |
| uint8_t pb = 0x60; // wait more procedure byte |
| uint16_t data_i = 0; // progress in the data transfer |
| while (0x60 == pb) { // wait for SW |
| rc = slot_card_read(slotnr, &pb, 1, ISO7816_3_DEFAULT_WT); |
| if (ERR_NONE != rc) { |
| printf("error while receiving PB/SW1 (errno = %d)\r\n", rc); |
| return rc; |
| } |
| printf("%02x ", pb); |
| if (0x60 == pb) { // NULL byte |
| // just wait more time |
| } else if ((0x60 == (pb & 0xf0)) || (0x90 == (pb & 0xf0))) { // SW1 byte |
| // left the rest of the code handle it |
| } else if (header[1] == pb) { // ACK byte |
| // transfer rest of the data |
| if (data_i >= data_length) { |
| printf("error no more data to transfer\r\n"); |
| return ERR_INVALID_DATA; |
| } |
| if (write) { // transmit remaining command data |
| rc = slot_card_write(slotnr, &data[data_i], data_length - data_i); // transmit command data |
| if (ERR_NONE != rc) { |
| printf("error in command data transmit (errno = %d)\r\n", rc); |
| return rc; |
| } |
| } else { // receive remaining command data |
| rc = slot_card_read(slotnr, &data[data_i], data_length - data_i, ISO7816_3_DEFAULT_WT); |
| if (ERR_NONE != rc) { |
| printf("error in command data receive (errno = %d)\r\n", rc); |
| return rc; |
| } |
| } |
| for (uint16_t i = data_i; i < data_length; i++) { |
| printf("%02x ", data[i]); |
| } |
| data_i = data_length; // remember we transferred the data |
| pb = 0x60; // wait for SW1 |
| } else if (header[1] == (pb ^ 0xff)) { // ACK byte |
| // transfer only one byte |
| if (data_i >= data_length) { |
| printf("error no more data to transfer\r\n"); |
| return ERR_INVALID_DATA; |
| } |
| if (write) { // transmit command data byte |
| rc = slot_card_write(slotnr, &data[data_i], 1); // transmit command data |
| if (ERR_NONE != rc) { |
| printf("error in command data transmit (errno = %d)\r\n", rc); |
| return rc; |
| } |
| } else { // receive command data byte |
| rc = slot_card_read(slotnr, &data[data_i], 1, ISO7816_3_DEFAULT_WT); |
| if (ERR_NONE != rc) { |
| printf("error in command data receive (errno = %d)\r\n", rc); |
| return rc; |
| } |
| } |
| printf("%02x ", data[data_i]); |
| data_i += 1; // remember we transferred one data byte |
| pb = 0x60; // wait for SW1 |
| } else { // invalid byte |
| return ERR_INVALID_DATA; |
| } |
| } |
| |
| // read SW2 |
| uint8_t sw2; |
| rc = slot_card_read(slotnr, &sw2, 1, ISO7816_3_DEFAULT_WT); |
| if (ERR_NONE != rc) { |
| printf("error in receiving SW2 (errno = %d)\r\n", rc); |
| return rc; |
| } |
| printf("%02x", sw2); |
| |
| printf("\r\n"); |
| return ERR_NONE; |
| } |
| |
| DEFUN(sim_status, cmd_sim_status, "sim-status", "Get state of specified NCN8025") |
| { |
| struct ncn8025_settings settings; |
| int slotnr = validate_slotnr(argc, argv, 1); |
| if (slotnr < 0) |
| return; |
| ncn8025_get(slotnr, &settings); |
| printf("SIM%d: ", slotnr); |
| ncn8025_dump(&settings); |
| printf("\r\n"); |
| } |
| |
| DEFUN(sim_power, cmd_sim_power, "sim-power", "Enable/disable SIM card power") |
| { |
| struct ncn8025_settings settings; |
| int slotnr = validate_slotnr(argc, argv, 1); |
| int enable; |
| |
| if (slotnr < 0) |
| return; |
| |
| if (argc < 3) { |
| printf("You have to specify 0=disable or 1=enable\r\n"); |
| return; |
| } |
| enable = atoi(argv[2]); |
| ncn8025_get(slotnr, &settings); |
| if (enable) |
| settings.cmdvcc = true; |
| else |
| settings.cmdvcc = false; |
| ncn8025_set(slotnr, &settings); |
| } |
| |
| DEFUN(sim_reset, cmd_sim_reset, "sim-reset", "Enable/disable SIM reset") |
| { |
| struct ncn8025_settings settings; |
| int slotnr = validate_slotnr(argc, argv, 1); |
| int enable; |
| |
| if (slotnr < 0) |
| return; |
| |
| if (argc < 3) { |
| printf("You have to specify 0=disable or 1=enable\r\n"); |
| return; |
| } |
| enable = atoi(argv[2]); |
| ncn8025_get(slotnr, &settings); |
| if (enable) |
| settings.rstin = true; |
| else |
| settings.rstin = false; |
| ncn8025_set(slotnr, &settings); |
| } |
| |
| DEFUN(sim_clkdiv, cmd_sim_clkdiv, "sim-clkdiv", "Set SIM clock divider (1,2,4,8)") |
| { |
| struct ncn8025_settings settings; |
| int slotnr = validate_slotnr(argc, argv, 1); |
| int clkdiv; |
| |
| if (slotnr < 0) |
| return; |
| |
| if (argc < 3) { |
| printf("You have to specify a valid divider (1,2,4,8)\r\n"); |
| return; |
| } |
| clkdiv = atoi(argv[2]); |
| if (clkdiv != 1 && clkdiv != 2 && clkdiv != 4 && clkdiv != 8) { |
| printf("You have to specify a valid divider (1,2,4,8)\r\n"); |
| return; |
| } |
| ncn8025_get(slotnr, &settings); |
| switch (clkdiv) { |
| case 1: |
| settings.clkdiv = SIM_CLKDIV_1; |
| break; |
| case 2: |
| settings.clkdiv = SIM_CLKDIV_2; |
| break; |
| case 4: |
| settings.clkdiv = SIM_CLKDIV_4; |
| break; |
| case 8: |
| settings.clkdiv = SIM_CLKDIV_8; |
| break; |
| } |
| ncn8025_set(slotnr, &settings); |
| } |
| |
| DEFUN(sim_voltage, cmd_sim_voltage, "sim-voltage", "Set SIM voltage (5/3/1.8)") |
| { |
| struct ncn8025_settings settings; |
| int slotnr = validate_slotnr(argc, argv, 1); |
| |
| if (slotnr < 0) |
| return; |
| |
| if (argc < 3) { |
| printf("You have to specify a valid voltage (5/3/1.8)\r\n"); |
| return; |
| } |
| ncn8025_get(slotnr, &settings); |
| if (!strcmp(argv[2], "5")) |
| settings.vsel = SIM_VOLT_5V0; |
| else if (!strcmp(argv[2], "3")) |
| settings.vsel = SIM_VOLT_3V0; |
| else if (!strcmp(argv[2], "1.8")) |
| settings.vsel = SIM_VOLT_1V8; |
| else { |
| printf("You have to specify a valid voltage (5/3/1.8)\r\n"); |
| return; |
| } |
| ncn8025_set(slotnr, &settings); |
| } |
| |
| DEFUN(sim_led, cmd_sim_led, "sim-led", "Set SIM LED (1=on, 0=off)") |
| { |
| struct ncn8025_settings settings; |
| int slotnr = validate_slotnr(argc, argv, 1); |
| |
| if (slotnr < 0) |
| return; |
| |
| if (argc < 3) { |
| printf("You have to specify 0=disable or 1=enable\r\n"); |
| return; |
| } |
| ncn8025_get(slotnr, &settings); |
| if (atoi(argv[2])) |
| settings.led = true; |
| else |
| settings.led = false; |
| ncn8025_set(slotnr, &settings); |
| } |
| |
| DEFUN(sim_atr, cmd_sim_atr, "sim-atr", "Read ATR from SIM card") |
| { |
| struct ncn8025_settings settings; |
| int slotnr = validate_slotnr(argc, argv, 1); |
| |
| if (slotnr < 0 || slotnr >= ARRAY_SIZE(SIM_peripheral_descriptors) || NULL == SIM_peripheral_descriptors[slotnr]) { |
| return; |
| } |
| |
| // check if card is present (and read current settings) |
| ncn8025_get(slotnr, &settings); |
| if (!settings.simpres) { |
| printf("(%d) error: no card present\r\n", slotnr); |
| return; |
| } |
| |
| // switch card off (assert reset and disable power) |
| // note: ISO/IEC 7816-3:2006 section 6.4 provides the deactivation sequence, but not the minimum corresponding times |
| settings.rstin = true; |
| settings.cmdvcc = false; |
| settings.led = true; |
| ncn8025_set(slotnr, &settings); |
| |
| // TODO wait some time for card to be completely deactivated |
| usart_async_flush_rx_buffer(SIM_peripheral_descriptors[slotnr]); // flush RX buffer to start from scratch |
| |
| |
| // set clock to lowest frequency (20 MHz / 8 = 2.5 MHz) |
| // note: according to ISO/IEC 7816-3:2006 section 5.2.3 the minimum value is 1 MHz, and maximum is 5 MHz during activation |
| settings.clkdiv = SIM_CLKDIV_8; |
| // set USART baud rate to match the interface (f = 2.5 MHz) and card default settings (Fd = 372, Dd = 1) |
| slot_set_isorate(slotnr, settings.clkdiv, ISO7816_3_DEFAULT_FD, ISO7816_3_DEFAULT_DD); |
| // set card voltage to 3.0 V (the most supported) |
| // note: according to ISO/IEC 7816-3:2006 no voltage should damage the card, and you should cycle from low to high |
| settings.vsel = SIM_VOLT_3V0; |
| // provide power (the NCN8025 should perform the activation according to spec) |
| // note: activation sequence is documented in ISO/IEC 7816-3:2006 section 6.2 |
| settings.cmdvcc = true; |
| ncn8025_set(slotnr, &settings); |
| |
| // wait for Tb=400 cycles before re-asserting reset |
| delay_us(400 * 10000 / 2500); // 400 cycles * 1000 for us, 2.5 MHz / 1000 for us |
| |
| // de-assert reset to switch card back on |
| settings.rstin = false; |
| ncn8025_set(slotnr, &settings); |
| |
| // wait for Tc=40000 cycles for transmission to start |
| uint32_t cycles = 40000; |
| while (cycles && !usart_async_is_rx_not_empty(SIM_peripheral_descriptors[slotnr])) { |
| delay_us(10); |
| cycles -= 25; // 10 us = 25 cycles at 2.5 MHz |
| } |
| if (!usart_async_is_rx_not_empty(SIM_peripheral_descriptors[slotnr])) { |
| delay_us(12 * 372 / 1 / 2); // wait more than one byte (approximate freq down to 2 MHz) |
| } |
| // verify if one byte has been received |
| if (!usart_async_is_rx_not_empty(SIM_peripheral_descriptors[slotnr])) { |
| printf("(%d) error: card not responsive\r\n", slotnr); |
| return; |
| } |
| |
| // read ATR (just do it until there is no traffic anymore) |
| // TODO the ATR should be parsed to read the right number of bytes, instead we just wait until to end of WT |
| printf("(%d) ATR: ", slotnr); |
| uint8_t atr_byte; |
| while (usart_async_is_rx_not_empty(SIM_peripheral_descriptors[slotnr])) { |
| if (1 == io_read(&SIM_peripheral_descriptors[slotnr]->io, &atr_byte, 1)) { |
| printf("%02x ", atr_byte); |
| } |
| uint16_t wt = ISO7816_3_DEFAULT_WT; // waiting time in ETU |
| while (wt && !usart_async_is_rx_not_empty(SIM_peripheral_descriptors[slotnr])) { |
| delay_us(149); // wait for 1 ETU (372 / 1 / 2.5 MHz = 148.8 us) |
| wt--; |
| } |
| } |
| printf("\r\n"); |
| |
| /* disable LED */ |
| settings.led = false; |
| ncn8025_set(slotnr, &settings); |
| } |
| |
| DEFUN(sim_iccid, cmd_sim_iccid, "sim-iccid", "Read ICCID from SIM card") |
| { |
| struct ncn8025_settings settings; |
| int slotnr = validate_slotnr(argc, argv, 1); |
| |
| if (slotnr < 0 || slotnr >= ARRAY_SIZE(SIM_peripheral_descriptors) || NULL == SIM_peripheral_descriptors[slotnr]) { |
| return; |
| } |
| |
| // read current settings and check if card is present and powered |
| ncn8025_get(slotnr, &settings); |
| if (!settings.simpres) { |
| printf("(%d) error: no card present\r\n", slotnr); |
| return; |
| } |
| if (!settings.cmdvcc) { |
| printf("(%d) error: card not powered\r\n", slotnr); |
| return; |
| } |
| if (settings.rstin) { |
| printf("(%d) error: card under reset\r\n", slotnr); |
| return; |
| } |
| |
| // enable LED |
| if (!settings.led) { |
| settings.led = true; |
| ncn8025_set(slotnr, &settings); |
| } |
| |
| // select MF |
| printf("(%d) SELECT MF\r\n", slotnr); |
| const uint8_t select_header[] = {0xa0, 0xa4, 0x00, 0x00, 0x02}; // see TS 102.221 sec. 11.1.1 |
| const uint8_t select_data_mf[] = {0x3f, 0x00}; // see TS 102.221 sec. 13.1 |
| int rc = slot_tpdu_xfer(slotnr, select_header, (uint8_t*)select_data_mf, ARRAY_SIZE(select_data_mf), true); // transfer TPDU |
| if (ERR_NONE != rc) { |
| printf("error while SELECT MF (errno = %d)\r\n", rc); |
| } |
| // ignore response data |
| |
| // select EF_ICCID |
| printf("(%d) SELECT EF_ICCID\r\n", slotnr); |
| const uint8_t select_data_ef_iccid[] = {0x2f, 0xe2}; // see TS 102.221 sec. 13.2 |
| rc = slot_tpdu_xfer(slotnr, select_header, (uint8_t*)select_data_ef_iccid, ARRAY_SIZE(select_data_ef_iccid), true); // transfer TPDU |
| if (ERR_NONE != rc) { |
| printf("error while SELECT EF_ICCID (errno = %d)\r\n", rc); |
| } |
| // ignore response data |
| |
| // read EF_ICCID |
| printf("(%d) READ EF_ICCID\r\n", slotnr); |
| uint8_t iccid[10]; |
| uint8_t read_binary[] = {0xa0, 0xb0, 0x00, 0x00, ARRAY_SIZE(iccid)}; // see TS 102.221 sec. 11.1.3 |
| rc = slot_tpdu_xfer(slotnr, read_binary, iccid, ARRAY_SIZE(iccid), false); // transfer TPDU |
| if (ERR_NONE != rc) { |
| printf("error while READ ICCID (errno = %d)\r\n", rc); |
| } |
| // ignore response data |
| |
| printf("(%d) ICCID: ", slotnr); |
| for (uint8_t i = 0; i < ARRAY_SIZE(iccid); i++) { |
| uint8_t nibble = iccid[i] & 0xf; |
| if (0xf == nibble) { |
| break; |
| } |
| printf("%x", nibble); |
| nibble = iccid[i] >> 4; |
| if (0xf == nibble) { |
| break; |
| } |
| printf("%x", nibble); |
| } |
| printf("\r\n"); |
| |
| // disable LED |
| settings.led = false; |
| ncn8025_set(slotnr, &settings); |
| } |
| |
| DEFUN(get_time, cmd_get_time, "get-time", "Read Time from RTC") |
| { |
| struct calendar_date_time dt; |
| calendar_get_date_time(&CALENDAR_0, &dt); |
| printf("%04u-%02u-%02u %02u:%02u:%02u\r\n", dt.date.year, dt.date.month, dt.date.day, |
| dt.time.hour, dt.time.min, dt.time.sec); |
| } |
| |
| #include <osmocom/core/timer.h> |
| static struct osmo_timer_list t; |
| static void tmr_cb(void *data) |
| { |
| printf("timer fired!\r\n"); |
| } |
| DEFUN(test_timer, cmd_test_timer, "test-timer", "Test osmo_timer") |
| { |
| printf("Setting up timer for 3s...\n\r"); |
| osmo_timer_setup(&t, &tmr_cb, NULL); |
| osmo_timer_schedule(&t, 3, 0); |
| } |
| |
| |
| extern void testmode_init(void); |
| extern void libosmo_emb_init(void); |
| extern void libosmo_emb_mainloop(void); |
| |
| #include "talloc.h" |
| #include "logging.h" |
| #include <osmocom/core/msgb.h> |
| void *g_tall_ctx; |
| |
| DEFUN(_talloc_report, cmd_talloc_report, "talloc-report", "Generate a talloc report") |
| { |
| talloc_report_full(g_tall_ctx, stdout); |
| } |
| |
| DEFUN(talloc_test, cmd_talloc_test, "talloc-test", "Test the talloc allocator") |
| { |
| for (int i = 0; i < 10; i++) |
| talloc_named_const(g_tall_ctx, 10, "sibling"); |
| } |
| |
| DEFUN(v_talloc_free, cmd_talloc_free, "talloc-free", "Release all memory") |
| { |
| talloc_free(g_tall_ctx); |
| g_tall_ctx = NULL; |
| } |
| |
| /* Section 9.6 of SAMD5x/E5x Family Data Sheet */ |
| static int get_chip_unique_serial(uint8_t *out, size_t len) |
| { |
| uint32_t *out32 = (uint32_t *)out; |
| if (len < 16) |
| return -EINVAL; |
| |
| out32[0] = *(uint32_t *)0x008061fc; |
| out32[1] = *(uint32_t *)0x00806010; |
| out32[2] = *(uint32_t *)0x00806014; |
| out32[3] = *(uint32_t *)0x00806018; |
| |
| return 0; |
| } |
| |
| /* same as get_chip_unique_serial but in hex-string format */ |
| static int get_chip_unique_serial_str(char *out, size_t len) |
| { |
| uint8_t buf[16]; |
| int rc; |
| |
| if (len < 16*2 + 1) |
| return -EINVAL; |
| |
| rc = get_chip_unique_serial(buf, sizeof(buf)); |
| if (rc < 0) |
| return rc; |
| osmo_hexdump_buf(out, len, buf, sizeof(buf), NULL, false); |
| return 0; |
| } |
| |
| #define RSTCAUSE_STR_SIZE 64 |
| static void get_rstcause_str(char *out) |
| { |
| uint8_t val = hri_rstc_read_RCAUSE_reg(RSTC); |
| *out = '\0'; |
| if (val & RSTC_RCAUSE_POR) |
| strcat(out, "POR "); |
| if (val & RSTC_RCAUSE_BODCORE) |
| strcat(out, "BODCORE "); |
| if (val & RSTC_RCAUSE_BODVDD) |
| strcat(out, "BODVDD "); |
| if (val & RSTC_RCAUSE_NVM) |
| strcat(out, "NVM "); |
| if (val & RSTC_RCAUSE_EXT) |
| strcat(out, "EXT "); |
| if (val & RSTC_RCAUSE_WDT) |
| strcat(out, "WDT "); |
| if (val & RSTC_RCAUSE_SYST) |
| strcat(out, "SYST "); |
| if (val & RSTC_RCAUSE_BACKUP) |
| strcat(out, "BACKUP "); |
| } |
| |
| int main(void) |
| { |
| char sernr_buf[16*2+1]; |
| char rstcause_buf[RSTCAUSE_STR_SIZE]; |
| |
| atmel_start_init(); |
| get_chip_unique_serial_str(sernr_buf, sizeof(sernr_buf)); |
| get_rstcause_str(rstcause_buf); |
| |
| usb_start(); |
| |
| board_init(); |
| command_init("sysmoOCTSIM> "); |
| command_register(&cmd_sim_status); |
| command_register(&cmd_sim_power); |
| command_register(&cmd_sim_reset); |
| command_register(&cmd_sim_clkdiv); |
| command_register(&cmd_sim_voltage); |
| command_register(&cmd_sim_led); |
| command_register(&cmd_sim_atr); |
| command_register(&cmd_sim_iccid); |
| testmode_init(); |
| command_register(&cmd_talloc_test); |
| command_register(&cmd_talloc_report); |
| command_register(&cmd_talloc_free); |
| command_register(&cmd_get_time); |
| command_register(&cmd_test_timer); |
| |
| printf("\r\n\r\n" |
| "=============================================================================\n\r" |
| "sysmoOCTSIM firmware " GIT_VERSION "\n\r" |
| "(C) 2018-2019 by sysmocom - s.f.m.c. GmbH and contributors\n\r" |
| "=============================================================================\n\r"); |
| printf("Chip ID: %s\r\n", sernr_buf); |
| printf("Reset cause: %s\r\n", rstcause_buf); |
| |
| talloc_enable_null_tracking(); |
| g_tall_ctx = talloc_named_const(NULL, 0, "global"); |
| printf("g_tall_ctx=%p\r\n", g_tall_ctx); |
| |
| libosmo_emb_init(); |
| |
| LOGP(DUSB, LOGL_ERROR, "foobar usb\n"); |
| |
| command_print_prompt(); |
| while (true) { // main loop |
| command_try_recv(); |
| poll_card_detect(); |
| submit_next_irq(); |
| osmo_timers_update(); |
| } |
| } |