From: Uwe Hermann Date: Wed, 24 Apr 2019 15:22:05 +0000 (+0200) Subject: sysclk-sla5032: Merge sla5032.[ch] into protocol.[ch]. X-Git-Url: https://sigrok.org/gitaction?a=commitdiff_plain;h=9e0693f92d9e11ac7bc75ef4d7ee082cae99ab6c;p=libsigrok.git sysclk-sla5032: Merge sla5032.[ch] into protocol.[ch]. --- diff --git a/Makefile.am b/Makefile.am index cae48d47..ae5641d0 100644 --- a/Makefile.am +++ b/Makefile.am @@ -556,8 +556,6 @@ src_libdrivers_la_SOURCES += \ endif if HW_SYSCLK_SLA5032 src_libdrivers_la_SOURCES += \ - src/hardware/sysclk-sla5032/sla5032.h \ - src/hardware/sysclk-sla5032/sla5032.c \ src/hardware/sysclk-sla5032/protocol.h \ src/hardware/sysclk-sla5032/protocol.c \ src/hardware/sysclk-sla5032/api.c diff --git a/src/hardware/sysclk-sla5032/api.c b/src/hardware/sysclk-sla5032/api.c index ffb2b192..cc7e7907 100644 --- a/src/hardware/sysclk-sla5032/api.c +++ b/src/hardware/sysclk-sla5032/api.c @@ -26,7 +26,6 @@ #include #include #include "protocol.h" -#include "sla5032.h" /* Number of logic channels. */ #define NUM_CHANNELS 32 diff --git a/src/hardware/sysclk-sla5032/protocol.c b/src/hardware/sysclk-sla5032/protocol.c index c4011da1..b4a4e4d6 100644 --- a/src/hardware/sysclk-sla5032/protocol.c +++ b/src/hardware/sysclk-sla5032/protocol.c @@ -20,7 +20,668 @@ #include #include #include "protocol.h" -#include "sla5032.h" + +/* + * Register description (all registers are 32bit): + * + * Rx - means register with index x (register address is x*4) + * + * R0(wr): trigger sel0 (low/high) + * R0(rd): n*256 samples (post trigger) captured + * + * R1(wr): trigger sel1 (level/edge) + * R1(rd): current sampled value + * + * R2(wr): trigger enable mask + * + * R2(rd): (status register) + * b0: 1 - keys entered + * b1: 1 - triggered + * b3: 1 - capture done + * + * not configured: B6FF9C97, 12FF9C97, 92FF9C97, 16FF9C97, ... + * configured: A5A5A5A0, after enter keys A5A5A5A1 + * + * sel1 (one bit per channel): + * 0 - level triggered + * 1 - edge triggered + * + * sel0 (one bit per channel): + * 0 - (low level trigger, sel1=0), (falling edge, sel1=1) + * 1 - (high level trigger, sel1=0), (raising edge, sel1=1) + * + * mask (one bit per channel): + * 0 - disable trigger on channel n + * 1 - enable trigger on channel n + * + * R3: upload base address or num samples (0x300000) + * + * R4: pll divisor - 1 + * 0 - div 1 (no division) + * 1 - div 2 + * 2 - div 3 + * ... + * n-1 - div n + * + * R5(rd/wr): + * b0: 1 - enable pll mul 2, 0 - disable pll mul 2 + * b1: ?? + * b2: ?? + * b3: ?? + * b4: + * b5: ->0->1 upload next data chunk (to pc) + * b6: ?? + * b7: 0 - enable pll mul 1.25, 1 - disable pll mul 1.25 + * b8: ?? + * + * R6: post trigger depth, value x means (x+1)*256 (samples), min value is 1 + * R7: pre trigger depth, value y means (y+1)*256 (samples), min value is 1 + * (x+1)*256 + (y+1)*256 <= 64M + * + * R9: PWM1 HI (1 width-1) + * R10: PWM1 LO (0 width-1) + * + * R11: PWM2 HI (1 width-1) + * R12: PWM2 LO (0 width-1) + * + * R14: + * 1 - start sample? + * 0 - upload done? + * + * R16: rom key 0 + * R17: rom key 1 + * + * key0 is F6 81 13 64 + * key1 is 00 00 00 00 + * + * start sample: + * r5 <= b2 <= 0 + * r5 <= b3 <= 0 + * r5 <= b5 <= 0 + * + * r5 <= b6 <= 1 + * r5 <= b1 <= 1 + * r5 <= b1 <= 0 + * + * r5 <= b8 <= 1 + * r5 <= b8 <= 0 + * + * r5 <= b6 <= 1 + * r5 <= b2 <= 1 + * + * read back: + * r5 <= 0x08 (b3) + * r5 <= 0x28 (b5,b3) + */ + +#define BITSTREAM_NAME "sysclk-sla5032.bit" +#define BITSTREAM_MAX_SIZE (512 * 1024) /* Bitstream size limit for safety */ +#define BITSTREAM_HEADER_SIZE 0x69 +#define FW_CHUNK_SIZE 250 +#define XILINX_SYNC_WORD 0xAA995566 + +static int la_write_cmd_buf(const struct sr_usb_dev_inst *usb, uint8_t cmd, + unsigned int addr, unsigned int len, const void *data) +{ + uint8_t *cmd_pkt; + int ret, xfer_len; + int cmd_len; + + cmd_pkt = g_try_malloc(len + 10); + if (!cmd_pkt) { + ret = SR_ERR_MALLOC; + goto exit; + } + + cmd_pkt[0] = cmd; + cmd_len = 1; + xfer_len = 0; + + switch(cmd) { + case CMD_INIT_FW_UPLOAD: /* init firmware upload */ + break; + case CMD_UPLOAD_FW_CHUNK: + cmd_pkt[1] = len; + cmd_len += 1 + len; + memcpy(&cmd_pkt[2], data, len); + break; + case CMD_READ_REG: /* read register */ + cmd_pkt[1] = addr; + cmd_pkt[2] = len; + cmd_len += 2; + break; + case CMD_WRITE_REG: /* write register */ + cmd_pkt[1] = addr; + cmd_pkt[2] = len; + cmd_len += 2 + len; + memcpy(&cmd_pkt[3], data, len); + break; + case CMD_READ_MEM: /* read mem */ + cmd_pkt[1] = (addr >> 8) & 0xFF; + cmd_pkt[2] = addr & 0xFF; + cmd_pkt[3] = len; + cmd_len += 3; + break; + case CMD_READ_DATA: /* read samples */ + cmd_pkt[1] = addr; + cmd_len += 1; + break; + } + + ret = libusb_bulk_transfer(usb->devhdl, EP_COMMAND, cmd_pkt, cmd_len, + &xfer_len, USB_CMD_TIMEOUT_MS); + if (ret != 0) { + sr_dbg("Failed to send command %d: %s.", + cmd, libusb_error_name(ret)); + return SR_ERR; + } + + if (xfer_len != cmd_len) { + sr_dbg("Invalid send command response of length %d.", xfer_len); + return SR_ERR; + } + +exit: + g_free(cmd_pkt); + return ret; +} + +static int la_read_reg(const struct sr_usb_dev_inst *usb, unsigned int reg, uint32_t *val) +{ + int ret, xfer_len; + uint32_t reply; + + ret = la_write_cmd_buf(usb, CMD_READ_REG, reg * sizeof(uint32_t), + sizeof(reply), NULL); /* rd reg */ + if (ret != SR_OK) + return ret; + + ret = libusb_bulk_transfer(usb->devhdl, EP_REPLY, (uint8_t *)&reply, + sizeof(reply), &xfer_len, USB_REPLY_TIMEOUT_MS); + if (ret != SR_OK) + return ret; + + if (xfer_len != sizeof(uint32_t)) { + sr_dbg("Invalid register read response of length %d.", xfer_len); + return SR_ERR; + } + + *val = GUINT32_FROM_BE(reply); + + return ret; +} + +static int la_write_reg(const struct sr_usb_dev_inst *usb, unsigned int reg, uint32_t val) +{ + uint32_t val_be; + + val_be = GUINT32_TO_BE(val); + + return la_write_cmd_buf(usb, CMD_WRITE_REG, reg * sizeof(uint32_t), + sizeof(val_be), &val_be); /* wr reg */ +} + +static int la_read_mem(const struct sr_usb_dev_inst *usb, unsigned int addr, unsigned int len, void *data) +{ + int ret, xfer_len; + + ret = la_write_cmd_buf(usb, CMD_READ_MEM, addr, len, NULL); /* rd mem */ + if (ret != SR_OK) + return ret; + + xfer_len = 0; + ret = libusb_bulk_transfer(usb->devhdl, EP_REPLY, (uint8_t *)data, + len, &xfer_len, USB_REPLY_TIMEOUT_MS); + if (xfer_len != (int)len) { + sr_dbg("Invalid memory read response of length %d.", xfer_len); + return SR_ERR; + } + + return ret; +} + +static int la_read_samples(const struct sr_usb_dev_inst *usb, unsigned int addr) +{ + return la_write_cmd_buf(usb, CMD_READ_DATA, addr, 0, NULL); /* rd samples */ +} + +SR_PRIV int sla5032_set_depth(const struct sr_usb_dev_inst *usb, uint32_t pre, uint32_t post) +{ + int ret; + + /* (pre + 1)*256 + (post + 1)*256 <= 64*1024*1024 */ + ret = la_write_reg(usb, 7, pre); + if (ret != SR_OK) + return ret; + + return la_write_reg(usb, 6, post); +} + +SR_PRIV int sla5032_set_triggers(const struct sr_usb_dev_inst *usb, + uint32_t trg_value, uint32_t trg_edge_mask, uint32_t trg_mask) +{ + int ret; + + sr_dbg("set trigger: val: %08X, e_mask: %08X, mask: %08X.", trg_value, + trg_edge_mask, trg_mask); + + ret = la_write_reg(usb, 0, trg_value); + if (ret != SR_OK) + return ret; + + ret = la_write_reg(usb, 1, trg_edge_mask); + if (ret != SR_OK) + return ret; + + return la_write_reg(usb, 2, trg_mask); +} + +static int la_set_res_reg_bit(const struct sr_usb_dev_inst *usb, + unsigned int reg, unsigned int bit, unsigned int set_bit) +{ + int ret; + uint32_t v; + + v = 0; + ret = la_read_reg(usb, reg, &v); + if (ret != SR_OK) + return ret; + + if (set_bit) + v |= (1u << bit); + else + v &= ~(1u << bit); + + return la_write_reg(usb, reg, v); +} + +struct pll_tbl_entry_t +{ + unsigned int sr; + uint32_t pll_div_minus_1; + unsigned int pll_mul_flags; +}; + +enum { + PLL_MUL2 = 1, /* x2 */ + PLL_MUL1_25 = 2, /* x1.25 */ +}; + +static const struct pll_tbl_entry_t pll_tbl[] = { + { 500000000, 0, PLL_MUL2 | PLL_MUL1_25 }, /* 500M = f*2*1.25/1 */ + { 400000000, 0, PLL_MUL2 }, /* 400M = f*2/1 */ + { 250000000, 0, PLL_MUL1_25 }, /* 250M = f*1.25/1 */ + { 200000000, 0, 0 }, /* 200M = f/1 */ + { 100000000, 1, 0 }, /* 100M = f/2 */ + { 50000000, 3, 0 }, /* 50M = f/4 */ + { 25000000, 7, 0 }, /* 25M = f/8 */ + { 20000000, 9, 0 }, /* 20M = f/10 */ + { 10000000, 19, 0 }, /* 10M = f/20 */ + { 5000000, 39, 0 }, /* 5M = f/40 */ + { 2000000, 99, 0 }, /* 2M = f/100 */ + { 1000000, 199, 0 }, /* 1M = f/200 */ + { 500000, 399, 0 }, /* 500k = f/400 */ + { 200000, 999, 0 }, /* 200k = f/1000 */ + { 100000, 1999, 0 }, /* 100k = f/2000 */ + { 50000, 3999, 0 }, /* 50k = f/4000 */ + { 20000, 9999, 0 }, /* 20k = f/10000 */ + { 10000, 19999, 0 }, /* 10k = f/20000 */ + { 5000, 39999, 0 }, /* 5k = f/40000 */ + { 2000, 99999, 0 }, /* 2k = f/100000 */ +}; + +SR_PRIV int sla5032_set_samplerate(const struct sr_usb_dev_inst *usb, unsigned int sr) +{ + int i, ret; + const struct pll_tbl_entry_t *e; + + e = NULL; + for (i = 0; i < (int)ARRAY_SIZE(pll_tbl); i++) { + if (sr == pll_tbl[i].sr) { + e = &pll_tbl[i]; + break; + } + } + + if (!e) + return SR_ERR_SAMPLERATE; + + sr_dbg("set sample rate: %u.", e->sr); + + ret = la_write_reg(usb, 4, e->pll_div_minus_1); + if (ret != SR_OK) + return ret; + + ret = la_set_res_reg_bit(usb, 5, 0, + (e->pll_mul_flags & PLL_MUL2) ? 1 : 0); /* bit0 (1=en_mul2) */ + if (ret != SR_OK) + return ret; + + return la_set_res_reg_bit(usb, 5, 7, + (e->pll_mul_flags & PLL_MUL1_25) ? 0 : 1); /* bit7 (0=en_mul_1.25) */ +} + +SR_PRIV int sla5032_start_sample(const struct sr_usb_dev_inst *usb) +{ + int ret; + const unsigned int bits[10][2] = { + {2, 0}, {3, 0}, {5, 0}, {6, 1}, {1, 1}, + {1, 0}, {8, 1}, {8, 0}, {6, 1}, {2, 1}, + }; + + ret = la_write_reg(usb, 14, 1); + if (ret != SR_OK) + return ret; + + for (size_t i = 0; i < ARRAY_SIZE(bits); i++) { + ret = la_set_res_reg_bit(usb, 5, bits[i][0], bits[i][1]); + if (ret != SR_OK) + return ret; + } + + return ret; +} + +SR_PRIV int sla5032_get_status(const struct sr_usb_dev_inst *usb, uint32_t status[3]) +{ + int ret; + uint32_t v; + + ret = la_read_reg(usb, 1, &status[0]); + if (ret != SR_OK) + return ret; + + status[1] = 1; /* wait trigger */ + + ret = la_read_reg(usb, 0, &status[2]); + if (ret != SR_OK) + return ret; + + v = 0; + ret = la_read_reg(usb, 2, &v); + if (ret != SR_OK) + return ret; + + if (v & 8) { + status[1] = 3; /* sample done */ + sr_dbg("get status, reg2: %08X.", v); + } else if (v & 2) { + status[1] = 2; /* triggered */ + } + + return ret; +} + +static int la_read_samples_data(const struct sr_usb_dev_inst *usb, void *buf, + unsigned int len, int *xfer_len) +{ + return libusb_bulk_transfer(usb->devhdl, EP_DATA, (uint8_t *)buf, len, + xfer_len, USB_DATA_TIMEOUT_MS); +} + +SR_PRIV int sla5032_read_data_chunk(const struct sr_usb_dev_inst *usb, + void *buf, unsigned int len, int *xfer_len) +{ + int ret; + + ret = la_read_samples(usb, 3); + if (ret != SR_OK) + return ret; + + ret = la_write_reg(usb, 3, 0x300000); + if (ret != SR_OK) + return ret; + + ret = la_set_res_reg_bit(usb, 5, 4, 0); + if (ret != SR_OK) + return ret; + + ret = la_set_res_reg_bit(usb, 5, 4, 1); + if (ret != SR_OK) + return ret; + + return la_read_samples_data(usb, buf, len, xfer_len); +} + +SR_PRIV int sla5032_set_read_back(const struct sr_usb_dev_inst *usb) +{ + int ret; + + ret = la_write_reg(usb, 5, 0x08); + if (ret != SR_OK) + return ret; + + return la_write_reg(usb, 5, 0x28); +} + +SR_PRIV int sla5032_set_pwm1(const struct sr_usb_dev_inst* usb, uint32_t hi, uint32_t lo) +{ + int ret; + + ret = la_write_reg(usb, 9, hi); + if (ret != SR_OK) + return ret; + + return la_write_reg(usb, 10, lo); +} + +SR_PRIV int sla5032_set_pwm2(const struct sr_usb_dev_inst* usb, uint32_t hi, uint32_t lo) +{ + int ret; + + ret = la_write_reg(usb, 11, hi); + if (ret != SR_OK) + return ret; + + return la_write_reg(usb, 12, lo); +} + +SR_PRIV int sla5032_write_reg14_zero(const struct sr_usb_dev_inst* usb) +{ + return la_write_reg(usb, 14, 0); +} + +static int la_cfg_fpga_done(const struct sr_usb_dev_inst *usb, unsigned int addr) +{ + uint8_t done_key[8]; + uint32_t k0, k1; + unsigned int reg2; + int ret; + + memset(done_key, 0, sizeof(done_key)); + + ret = la_read_mem(usb, addr, sizeof(done_key), done_key); /* read key from eeprom */ + if (ret != SR_OK) + return ret; + + k0 = RL32(done_key); /* 0x641381F6 */ + k1 = RL32(done_key + 4); /* 0x00000000 */ + + sr_dbg("cfg fpga done, k0: %08X, k1: %08X.", k0, k1); + + ret = la_write_reg(usb, 16, k0); + if (ret != SR_OK) + return ret; + + ret = la_write_reg(usb, 17, k1); + if (ret != SR_OK) + return ret; + + reg2 = 0; + ret = la_read_reg(usb, 2, ®2); + + sr_dbg("cfg fpga done, reg2: %08X.", reg2); + + return ret; +} + +/* + * Load a bitstream file into memory. Returns a newly allocated array + * consisting of a 32-bit length field followed by the bitstream data. + */ +static unsigned char *load_bitstream(struct sr_context *ctx, + const char *name, int *length_p) +{ + struct sr_resource fw; + unsigned char *stream, *fw_data; + ssize_t length, count; + + if (sr_resource_open(ctx, &fw, SR_RESOURCE_FIRMWARE, name) != SR_OK) + return NULL; + + if (fw.size <= BITSTREAM_HEADER_SIZE || fw.size > BITSTREAM_MAX_SIZE) { + sr_err("Refusing to load bitstream of unreasonable size " + "(%" PRIu64 " bytes).", fw.size); + sr_resource_close(ctx, &fw); + return NULL; + } + + stream = g_try_malloc(fw.size); + if (!stream) { + sr_err("Failed to allocate bitstream buffer."); + sr_resource_close(ctx, &fw); + return NULL; + } + + count = sr_resource_read(ctx, &fw, stream, fw.size); + sr_resource_close(ctx, &fw); + + if (count != (ssize_t)fw.size) { + sr_err("Failed to read bitstream '%s'.", name); + g_free(stream); + return NULL; + } + + if (RB32(stream + BITSTREAM_HEADER_SIZE) != XILINX_SYNC_WORD) { + sr_err("Invalid bitstream signature."); + g_free(stream); + return NULL; + } + + length = fw.size - BITSTREAM_HEADER_SIZE + 0x100; + fw_data = g_try_malloc(length); + if (!fw_data) { + sr_err("Failed to allocate bitstream aligned buffer."); + return NULL; + } + + memset(fw_data, 0xFF, 0x100); + memcpy(fw_data + 0x100, stream + BITSTREAM_HEADER_SIZE, + fw.size - BITSTREAM_HEADER_SIZE); + g_free(stream); + + *length_p = length; + + return fw_data; +} + +static int sla5032_is_configured(const struct sr_usb_dev_inst* usb, gboolean *is_configured) +{ + int ret; + uint32_t reg2; + + reg2 = 0; + ret = la_read_reg(usb, 2, ®2); + if (ret == SR_OK) + *is_configured = (reg2 & 0xFFFFFFF1) == 0xA5A5A5A1 ? TRUE : FALSE; + + return ret; +} + +/* Load a Binary File from the firmware directory, transfer it to the device. */ +static int sla5032_send_bitstream(struct sr_context *ctx, + const struct sr_usb_dev_inst *usb, const char *name) +{ + unsigned char *stream; + int ret, length, i, n, m; + uint32_t reg2; + + if (!ctx || !usb || !name) + return SR_ERR_BUG; + + stream = load_bitstream(ctx, name, &length); + if (!stream) + return SR_ERR; + + sr_dbg("Downloading FPGA bitstream '%s'.", name); + + reg2 = 0; + ret = la_read_reg(usb, 2, ®2); + sr_dbg("send bitstream, reg2: %08X.", reg2); + + /* Transfer the entire bitstream in one URB. */ + ret = la_write_cmd_buf(usb, CMD_INIT_FW_UPLOAD, 0, 0, NULL); /* init firmware upload */ + if (ret != SR_OK) { + g_free(stream); + return ret; + } + + n = length / FW_CHUNK_SIZE; + m = length % FW_CHUNK_SIZE; + + for (i = 0; i < n; i++) { + /* upload firmware chunk */ + ret = la_write_cmd_buf(usb, CMD_UPLOAD_FW_CHUNK, 0, + FW_CHUNK_SIZE, &stream[i * FW_CHUNK_SIZE]); + + if (ret != SR_OK) { + g_free(stream); + return ret; + } + } + + if (m != 0) { + /* upload firmware last chunk */ + ret = la_write_cmd_buf(usb, CMD_UPLOAD_FW_CHUNK, 0, m, + &stream[n * FW_CHUNK_SIZE]); + + if (ret != SR_OK) { + g_free(stream); + return ret; + } + } + + g_free(stream); + + la_cfg_fpga_done(usb, 4000); + + sla5032_write_reg14_zero(usb); + + sr_dbg("FPGA bitstream download of %d bytes done.", length); + + return SR_OK; +} + +/* Select and transfer FPGA bitstream for the current configuration. */ +SR_PRIV int sla5032_apply_fpga_config(const struct sr_dev_inst *sdi) +{ + struct dev_context *devc; + struct drv_context *drvc; + int ret; + gboolean is_configured; + + devc = sdi->priv; + drvc = sdi->driver->context; + + if (FPGA_NOCONF != devc->active_fpga_config) + return SR_OK; /* No change. */ + + is_configured = FALSE; + ret = sla5032_is_configured(sdi->conn, &is_configured); + if (ret != SR_OK) + return ret; + + if (is_configured) { + devc->active_fpga_config = FPGA_CONF; + return ret; + } + + sr_dbg("FPGA not configured, send bitstream."); + ret = sla5032_send_bitstream(drvc->sr_ctx, sdi->conn, BITSTREAM_NAME); + devc->active_fpga_config = (ret == SR_OK) ? FPGA_CONF : FPGA_NOCONF; + + return ret; +} /* Callback handling data */ static int la_prepare_data(int fd, int revents, void *cb_data) diff --git a/src/hardware/sysclk-sla5032/protocol.h b/src/hardware/sysclk-sla5032/protocol.h index 205c907b..1c1fa7db 100644 --- a/src/hardware/sysclk-sla5032/protocol.h +++ b/src/hardware/sysclk-sla5032/protocol.h @@ -78,6 +78,18 @@ enum protocol_state { STATE_READ_REQUEST, }; +/** SLA5032 protocol command ID codes. */ +enum command_id { + CMD_INIT_FW_UPLOAD = 1, + CMD_UPLOAD_FW_CHUNK = 2, + CMD_READ_REG = 3, + CMD_WRITE_REG = 4, + CMD_READ_MEM = 5, + CMD_READ_DATA = 7, +}; + +struct sr_usb_dev_inst; + struct dev_context { uint64_t samplerate; /* requested samplerate */ uint64_t limit_samples; /* requested capture length (samples) */ @@ -98,4 +110,16 @@ struct dev_context { SR_PRIV int la_start_acquisition(const struct sr_dev_inst *sdi); +SR_PRIV int sla5032_apply_fpga_config(const struct sr_dev_inst* sdi); +SR_PRIV int sla5032_start_sample(const struct sr_usb_dev_inst *usb); +SR_PRIV int sla5032_get_status(const struct sr_usb_dev_inst *usb, uint32_t status[3]); +SR_PRIV int sla5032_set_read_back(const struct sr_usb_dev_inst *usb); +SR_PRIV int sla5032_read_data_chunk(const struct sr_usb_dev_inst *usb, void *buf, unsigned int len, int *xfer_len); +SR_PRIV int sla5032_set_depth(const struct sr_usb_dev_inst *usb, uint32_t pre, uint32_t post); +SR_PRIV int sla5032_set_triggers(const struct sr_usb_dev_inst *usb, uint32_t trg_value, uint32_t trg_edge_mask, uint32_t trg_mask); +SR_PRIV int sla5032_set_samplerate(const struct sr_usb_dev_inst *usb, unsigned int sr); +SR_PRIV int sla5032_set_pwm1(const struct sr_usb_dev_inst *usb, uint32_t hi, uint32_t lo); +SR_PRIV int sla5032_set_pwm2(const struct sr_usb_dev_inst* usb, uint32_t hi, uint32_t lo); +SR_PRIV int sla5032_write_reg14_zero(const struct sr_usb_dev_inst* usb); + #endif diff --git a/src/hardware/sysclk-sla5032/sla5032.c b/src/hardware/sysclk-sla5032/sla5032.c deleted file mode 100644 index 768a4f4e..00000000 --- a/src/hardware/sysclk-sla5032/sla5032.c +++ /dev/null @@ -1,684 +0,0 @@ -/* - * This file is part of the libsigrok project. - * - * Copyright (C) 2019 Vitaliy Vorobyov - * - * 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 3 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, see . - */ - -#include -#include "sla5032.h" -#include "protocol.h" - -/* - * Register description (all registers are 32bit): - * - * Rx - means register with index x (register address is x*4) - * - * R0(wr): trigger sel0 (low/high) - * R0(rd): n*256 samples (post trigger) captured - * - * R1(wr): trigger sel1 (level/edge) - * R1(rd): current sampled value - * - * R2(wr): trigger enable mask - * - * R2(rd): (status register) - * b0: 1 - keys entered - * b1: 1 - triggered - * b3: 1 - capture done - * - * not configured: B6FF9C97, 12FF9C97, 92FF9C97, 16FF9C97, ... - * configured: A5A5A5A0, after enter keys A5A5A5A1 - * - * sel1 (one bit per channel): - * 0 - level triggered - * 1 - edge triggered - * - * sel0 (one bit per channel): - * 0 - (low level trigger, sel1=0), (falling edge, sel1=1) - * 1 - (high level trigger, sel1=0), (raising edge, sel1=1) - * - * mask (one bit per channel): - * 0 - disable trigger on channel n - * 1 - enable trigger on channel n - * - * R3: upload base address or num samples (0x300000) - * - * R4: pll divisor - 1 - * 0 - div 1 (no division) - * 1 - div 2 - * 2 - div 3 - * ... - * n-1 - div n - * - * R5(rd/wr): - * b0: 1 - enable pll mul 2, 0 - disable pll mul 2 - * b1: ?? - * b2: ?? - * b3: ?? - * b4: - * b5: ->0->1 upload next data chunk (to pc) - * b6: ?? - * b7: 0 - enable pll mul 1.25, 1 - disable pll mul 1.25 - * b8: ?? - * - * R6: post trigger depth, value x means (x+1)*256 (samples), min value is 1 - * R7: pre trigger depth, value y means (y+1)*256 (samples), min value is 1 - * (x+1)*256 + (y+1)*256 <= 64M - * - * R9: PWM1 HI (1 width-1) - * R10: PWM1 LO (0 width-1) - * - * R11: PWM2 HI (1 width-1) - * R12: PWM2 LO (0 width-1) - * - * R14: - * 1 - start sample? - * 0 - upload done? - * - * R16: rom key 0 - * R17: rom key 1 - * - * key0 is F6 81 13 64 - * key1 is 00 00 00 00 - * - * start sample: - * r5 <= b2 <= 0 - * r5 <= b3 <= 0 - * r5 <= b5 <= 0 - * - * r5 <= b6 <= 1 - * r5 <= b1 <= 1 - * r5 <= b1 <= 0 - * - * r5 <= b8 <= 1 - * r5 <= b8 <= 0 - * - * r5 <= b6 <= 1 - * r5 <= b2 <= 1 - * - * read back: - * r5 <= 0x08 (b3) - * r5 <= 0x28 (b5,b3) - */ - -#define BITSTREAM_NAME "sysclk-sla5032.bit" -#define BITSTREAM_MAX_SIZE (512 * 1024) /* Bitstream size limit for safety */ -#define BITSTREAM_HEADER_SIZE 0x69 -#define FW_CHUNK_SIZE 250 -#define XILINX_SYNC_WORD 0xAA995566 - -static int la_write_cmd_buf(const struct sr_usb_dev_inst *usb, uint8_t cmd, - unsigned int addr, unsigned int len, const void *data) -{ - uint8_t *cmd_pkt; - int ret, xfer_len; - int cmd_len; - - cmd_pkt = g_try_malloc(len + 10); - if (!cmd_pkt) { - ret = SR_ERR_MALLOC; - goto exit; - } - - cmd_pkt[0] = cmd; - cmd_len = 1; - xfer_len = 0; - - switch(cmd) { - case CMD_INIT_FW_UPLOAD: /* init firmware upload */ - break; - case CMD_UPLOAD_FW_CHUNK: - cmd_pkt[1] = len; - cmd_len += 1 + len; - memcpy(&cmd_pkt[2], data, len); - break; - case CMD_READ_REG: /* read register */ - cmd_pkt[1] = addr; - cmd_pkt[2] = len; - cmd_len += 2; - break; - case CMD_WRITE_REG: /* write register */ - cmd_pkt[1] = addr; - cmd_pkt[2] = len; - cmd_len += 2 + len; - memcpy(&cmd_pkt[3], data, len); - break; - case CMD_READ_MEM: /* read mem */ - cmd_pkt[1] = (addr >> 8) & 0xFF; - cmd_pkt[2] = addr & 0xFF; - cmd_pkt[3] = len; - cmd_len += 3; - break; - case CMD_READ_DATA: /* read samples */ - cmd_pkt[1] = addr; - cmd_len += 1; - break; - } - - ret = libusb_bulk_transfer(usb->devhdl, EP_COMMAND, cmd_pkt, cmd_len, - &xfer_len, USB_CMD_TIMEOUT_MS); - if (ret != 0) { - sr_dbg("Failed to send command %d: %s.", - cmd, libusb_error_name(ret)); - return SR_ERR; - } - - if (xfer_len != cmd_len) { - sr_dbg("Invalid send command response of length %d.", xfer_len); - return SR_ERR; - } - -exit: - g_free(cmd_pkt); - return ret; -} - -static int la_read_reg(const struct sr_usb_dev_inst *usb, unsigned int reg, uint32_t *val) -{ - int ret, xfer_len; - uint32_t reply; - - ret = la_write_cmd_buf(usb, CMD_READ_REG, reg * sizeof(uint32_t), - sizeof(reply), NULL); /* rd reg */ - if (ret != SR_OK) - return ret; - - ret = libusb_bulk_transfer(usb->devhdl, EP_REPLY, (uint8_t *)&reply, - sizeof(reply), &xfer_len, USB_REPLY_TIMEOUT_MS); - if (ret != SR_OK) - return ret; - - if (xfer_len != sizeof(uint32_t)) { - sr_dbg("Invalid register read response of length %d.", xfer_len); - return SR_ERR; - } - - *val = GUINT32_FROM_BE(reply); - - return ret; -} - -static int la_write_reg(const struct sr_usb_dev_inst *usb, unsigned int reg, uint32_t val) -{ - uint32_t val_be; - - val_be = GUINT32_TO_BE(val); - - return la_write_cmd_buf(usb, CMD_WRITE_REG, reg * sizeof(uint32_t), - sizeof(val_be), &val_be); /* wr reg */ -} - -static int la_read_mem(const struct sr_usb_dev_inst *usb, unsigned int addr, unsigned int len, void *data) -{ - int ret, xfer_len; - - ret = la_write_cmd_buf(usb, CMD_READ_MEM, addr, len, NULL); /* rd mem */ - if (ret != SR_OK) - return ret; - - xfer_len = 0; - ret = libusb_bulk_transfer(usb->devhdl, EP_REPLY, (uint8_t *)data, - len, &xfer_len, USB_REPLY_TIMEOUT_MS); - if (xfer_len != (int)len) { - sr_dbg("Invalid memory read response of length %d.", xfer_len); - return SR_ERR; - } - - return ret; -} - -static int la_read_samples(const struct sr_usb_dev_inst *usb, unsigned int addr) -{ - return la_write_cmd_buf(usb, CMD_READ_DATA, addr, 0, NULL); /* rd samples */ -} - -SR_PRIV int sla5032_set_depth(const struct sr_usb_dev_inst *usb, uint32_t pre, uint32_t post) -{ - int ret; - - /* (pre + 1)*256 + (post + 1)*256 <= 64*1024*1024 */ - ret = la_write_reg(usb, 7, pre); - if (ret != SR_OK) - return ret; - - return la_write_reg(usb, 6, post); -} - -SR_PRIV int sla5032_set_triggers(const struct sr_usb_dev_inst *usb, - uint32_t trg_value, uint32_t trg_edge_mask, uint32_t trg_mask) -{ - int ret; - - sr_dbg("set trigger: val: %08X, e_mask: %08X, mask: %08X.", trg_value, - trg_edge_mask, trg_mask); - - ret = la_write_reg(usb, 0, trg_value); - if (ret != SR_OK) - return ret; - - ret = la_write_reg(usb, 1, trg_edge_mask); - if (ret != SR_OK) - return ret; - - return la_write_reg(usb, 2, trg_mask); -} - -static int la_set_res_reg_bit(const struct sr_usb_dev_inst *usb, - unsigned int reg, unsigned int bit, unsigned int set_bit) -{ - int ret; - uint32_t v; - - v = 0; - ret = la_read_reg(usb, reg, &v); - if (ret != SR_OK) - return ret; - - if (set_bit) - v |= (1u << bit); - else - v &= ~(1u << bit); - - return la_write_reg(usb, reg, v); -} - -struct pll_tbl_entry_t -{ - unsigned int sr; - uint32_t pll_div_minus_1; - unsigned int pll_mul_flags; -}; - -enum { - PLL_MUL2 = 1, /* x2 */ - PLL_MUL1_25 = 2, /* x1.25 */ -}; - -static const struct pll_tbl_entry_t pll_tbl[] = { - { 500000000, 0, PLL_MUL2 | PLL_MUL1_25 }, /* 500M = f*2*1.25/1 */ - { 400000000, 0, PLL_MUL2 }, /* 400M = f*2/1 */ - { 250000000, 0, PLL_MUL1_25 }, /* 250M = f*1.25/1 */ - { 200000000, 0, 0 }, /* 200M = f/1 */ - { 100000000, 1, 0 }, /* 100M = f/2 */ - { 50000000, 3, 0 }, /* 50M = f/4 */ - { 25000000, 7, 0 }, /* 25M = f/8 */ - { 20000000, 9, 0 }, /* 20M = f/10 */ - { 10000000, 19, 0 }, /* 10M = f/20 */ - { 5000000, 39, 0 }, /* 5M = f/40 */ - { 2000000, 99, 0 }, /* 2M = f/100 */ - { 1000000, 199, 0 }, /* 1M = f/200 */ - { 500000, 399, 0 }, /* 500k = f/400 */ - { 200000, 999, 0 }, /* 200k = f/1000 */ - { 100000, 1999, 0 }, /* 100k = f/2000 */ - { 50000, 3999, 0 }, /* 50k = f/4000 */ - { 20000, 9999, 0 }, /* 20k = f/10000 */ - { 10000, 19999, 0 }, /* 10k = f/20000 */ - { 5000, 39999, 0 }, /* 5k = f/40000 */ - { 2000, 99999, 0 }, /* 2k = f/100000 */ -}; - -SR_PRIV int sla5032_set_samplerate(const struct sr_usb_dev_inst *usb, unsigned int sr) -{ - int i, ret; - const struct pll_tbl_entry_t *e; - - e = NULL; - for (i = 0; i < (int)ARRAY_SIZE(pll_tbl); i++) { - if (sr == pll_tbl[i].sr) { - e = &pll_tbl[i]; - break; - } - } - - if (!e) - return SR_ERR_SAMPLERATE; - - sr_dbg("set sample rate: %u.", e->sr); - - ret = la_write_reg(usb, 4, e->pll_div_minus_1); - if (ret != SR_OK) - return ret; - - ret = la_set_res_reg_bit(usb, 5, 0, - (e->pll_mul_flags & PLL_MUL2) ? 1 : 0); /* bit0 (1=en_mul2) */ - if (ret != SR_OK) - return ret; - - return la_set_res_reg_bit(usb, 5, 7, - (e->pll_mul_flags & PLL_MUL1_25) ? 0 : 1); /* bit7 (0=en_mul_1.25) */ -} - -SR_PRIV int sla5032_start_sample(const struct sr_usb_dev_inst *usb) -{ - int ret; - const unsigned int bits[10][2] = { - {2, 0}, {3, 0}, {5, 0}, {6, 1}, {1, 1}, - {1, 0}, {8, 1}, {8, 0}, {6, 1}, {2, 1}, - }; - - ret = la_write_reg(usb, 14, 1); - if (ret != SR_OK) - return ret; - - for (size_t i = 0; i < ARRAY_SIZE(bits); i++) { - ret = la_set_res_reg_bit(usb, 5, bits[i][0], bits[i][1]); - if (ret != SR_OK) - return ret; - } - - return ret; -} - -SR_PRIV int sla5032_get_status(const struct sr_usb_dev_inst *usb, uint32_t status[3]) -{ - int ret; - uint32_t v; - - ret = la_read_reg(usb, 1, &status[0]); - if (ret != SR_OK) - return ret; - - status[1] = 1; /* wait trigger */ - - ret = la_read_reg(usb, 0, &status[2]); - if (ret != SR_OK) - return ret; - - v = 0; - ret = la_read_reg(usb, 2, &v); - if (ret != SR_OK) - return ret; - - if (v & 8) { - status[1] = 3; /* sample done */ - sr_dbg("get status, reg2: %08X.", v); - } else if (v & 2) { - status[1] = 2; /* triggered */ - } - - return ret; -} - -static int la_read_samples_data(const struct sr_usb_dev_inst *usb, void *buf, - unsigned int len, int *xfer_len) -{ - return libusb_bulk_transfer(usb->devhdl, EP_DATA, (uint8_t *)buf, len, - xfer_len, USB_DATA_TIMEOUT_MS); -} - -SR_PRIV int sla5032_read_data_chunk(const struct sr_usb_dev_inst *usb, - void *buf, unsigned int len, int *xfer_len) -{ - int ret; - - ret = la_read_samples(usb, 3); - if (ret != SR_OK) - return ret; - - ret = la_write_reg(usb, 3, 0x300000); - if (ret != SR_OK) - return ret; - - ret = la_set_res_reg_bit(usb, 5, 4, 0); - if (ret != SR_OK) - return ret; - - ret = la_set_res_reg_bit(usb, 5, 4, 1); - if (ret != SR_OK) - return ret; - - return la_read_samples_data(usb, buf, len, xfer_len); -} - -SR_PRIV int sla5032_set_read_back(const struct sr_usb_dev_inst *usb) -{ - int ret; - - ret = la_write_reg(usb, 5, 0x08); - if (ret != SR_OK) - return ret; - - return la_write_reg(usb, 5, 0x28); -} - -SR_PRIV int sla5032_set_pwm1(const struct sr_usb_dev_inst* usb, uint32_t hi, uint32_t lo) -{ - int ret; - - ret = la_write_reg(usb, 9, hi); - if (ret != SR_OK) - return ret; - - return la_write_reg(usb, 10, lo); -} - -SR_PRIV int sla5032_set_pwm2(const struct sr_usb_dev_inst* usb, uint32_t hi, uint32_t lo) -{ - int ret; - - ret = la_write_reg(usb, 11, hi); - if (ret != SR_OK) - return ret; - - return la_write_reg(usb, 12, lo); -} - -SR_PRIV int sla5032_write_reg14_zero(const struct sr_usb_dev_inst* usb) -{ - return la_write_reg(usb, 14, 0); -} - -static int la_cfg_fpga_done(const struct sr_usb_dev_inst *usb, unsigned int addr) -{ - uint8_t done_key[8]; - uint32_t k0, k1; - unsigned int reg2; - int ret; - - memset(done_key, 0, sizeof(done_key)); - - ret = la_read_mem(usb, addr, sizeof(done_key), done_key); /* read key from eeprom */ - if (ret != SR_OK) - return ret; - - k0 = RL32(done_key); /* 0x641381F6 */ - k1 = RL32(done_key + 4); /* 0x00000000 */ - - sr_dbg("cfg fpga done, k0: %08X, k1: %08X.", k0, k1); - - ret = la_write_reg(usb, 16, k0); - if (ret != SR_OK) - return ret; - - ret = la_write_reg(usb, 17, k1); - if (ret != SR_OK) - return ret; - - reg2 = 0; - ret = la_read_reg(usb, 2, ®2); - - sr_dbg("cfg fpga done, reg2: %08X.", reg2); - - return ret; -} - -/* - * Load a bitstream file into memory. Returns a newly allocated array - * consisting of a 32-bit length field followed by the bitstream data. - */ -static unsigned char *load_bitstream(struct sr_context *ctx, - const char *name, int *length_p) -{ - struct sr_resource fw; - unsigned char *stream, *fw_data; - ssize_t length, count; - - if (sr_resource_open(ctx, &fw, SR_RESOURCE_FIRMWARE, name) != SR_OK) - return NULL; - - if (fw.size <= BITSTREAM_HEADER_SIZE || fw.size > BITSTREAM_MAX_SIZE) { - sr_err("Refusing to load bitstream of unreasonable size " - "(%" PRIu64 " bytes).", fw.size); - sr_resource_close(ctx, &fw); - return NULL; - } - - stream = g_try_malloc(fw.size); - if (!stream) { - sr_err("Failed to allocate bitstream buffer."); - sr_resource_close(ctx, &fw); - return NULL; - } - - count = sr_resource_read(ctx, &fw, stream, fw.size); - sr_resource_close(ctx, &fw); - - if (count != (ssize_t)fw.size) { - sr_err("Failed to read bitstream '%s'.", name); - g_free(stream); - return NULL; - } - - if (RB32(stream + BITSTREAM_HEADER_SIZE) != XILINX_SYNC_WORD) { - sr_err("Invalid bitstream signature."); - g_free(stream); - return NULL; - } - - length = fw.size - BITSTREAM_HEADER_SIZE + 0x100; - fw_data = g_try_malloc(length); - if (!fw_data) { - sr_err("Failed to allocate bitstream aligned buffer."); - return NULL; - } - - memset(fw_data, 0xFF, 0x100); - memcpy(fw_data + 0x100, stream + BITSTREAM_HEADER_SIZE, - fw.size - BITSTREAM_HEADER_SIZE); - g_free(stream); - - *length_p = length; - - return fw_data; -} - -static int sla5032_is_configured(const struct sr_usb_dev_inst* usb, gboolean *is_configured) -{ - int ret; - uint32_t reg2; - - reg2 = 0; - ret = la_read_reg(usb, 2, ®2); - if (ret == SR_OK) - *is_configured = (reg2 & 0xFFFFFFF1) == 0xA5A5A5A1 ? TRUE : FALSE; - - return ret; -} - -/* Load a Binary File from the firmware directory, transfer it to the device. */ -static int sla5032_send_bitstream(struct sr_context *ctx, - const struct sr_usb_dev_inst *usb, const char *name) -{ - unsigned char *stream; - int ret, length, i, n, m; - uint32_t reg2; - - if (!ctx || !usb || !name) - return SR_ERR_BUG; - - stream = load_bitstream(ctx, name, &length); - if (!stream) - return SR_ERR; - - sr_dbg("Downloading FPGA bitstream '%s'.", name); - - reg2 = 0; - ret = la_read_reg(usb, 2, ®2); - sr_dbg("send bitstream, reg2: %08X.", reg2); - - /* Transfer the entire bitstream in one URB. */ - ret = la_write_cmd_buf(usb, CMD_INIT_FW_UPLOAD, 0, 0, NULL); /* init firmware upload */ - if (ret != SR_OK) { - g_free(stream); - return ret; - } - - n = length / FW_CHUNK_SIZE; - m = length % FW_CHUNK_SIZE; - - for (i = 0; i < n; i++) { - /* upload firmware chunk */ - ret = la_write_cmd_buf(usb, CMD_UPLOAD_FW_CHUNK, 0, - FW_CHUNK_SIZE, &stream[i * FW_CHUNK_SIZE]); - - if (ret != SR_OK) { - g_free(stream); - return ret; - } - } - - if (m != 0) { - /* upload firmware last chunk */ - ret = la_write_cmd_buf(usb, CMD_UPLOAD_FW_CHUNK, 0, m, - &stream[n * FW_CHUNK_SIZE]); - - if (ret != SR_OK) { - g_free(stream); - return ret; - } - } - - g_free(stream); - - la_cfg_fpga_done(usb, 4000); - - sla5032_write_reg14_zero(usb); - - sr_dbg("FPGA bitstream download of %d bytes done.", length); - - return SR_OK; -} - -/* Select and transfer FPGA bitstream for the current configuration. */ -SR_PRIV int sla5032_apply_fpga_config(const struct sr_dev_inst *sdi) -{ - struct dev_context *devc; - struct drv_context *drvc; - int ret; - gboolean is_configured; - - devc = sdi->priv; - drvc = sdi->driver->context; - - if (FPGA_NOCONF != devc->active_fpga_config) - return SR_OK; /* No change. */ - - is_configured = FALSE; - ret = sla5032_is_configured(sdi->conn, &is_configured); - if (ret != SR_OK) - return ret; - - if (is_configured) { - devc->active_fpga_config = FPGA_CONF; - return ret; - } - - sr_dbg("FPGA not configured, send bitstream."); - ret = sla5032_send_bitstream(drvc->sr_ctx, sdi->conn, BITSTREAM_NAME); - devc->active_fpga_config = (ret == SR_OK) ? FPGA_CONF : FPGA_NOCONF; - - return ret; -} diff --git a/src/hardware/sysclk-sla5032/sla5032.h b/src/hardware/sysclk-sla5032/sla5032.h deleted file mode 100644 index 22d12797..00000000 --- a/src/hardware/sysclk-sla5032/sla5032.h +++ /dev/null @@ -1,52 +0,0 @@ -/* - * This file is part of the libsigrok project. - * - * Copyright (C) 2019 Vitaliy Vorobyov - * - * 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 3 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, see . - */ - -#ifndef LIBSIGROK_HARDWARE_SYSCLK_SLA5032_SLA5032_H -#define LIBSIGROK_HARDWARE_SYSCLK_SLA5032_SLA5032_H - -#include -#include -#include -#include - -/** SLA5032 protocol command ID codes. */ -enum command_id { - CMD_INIT_FW_UPLOAD = 1, - CMD_UPLOAD_FW_CHUNK = 2, - CMD_READ_REG = 3, - CMD_WRITE_REG = 4, - CMD_READ_MEM = 5, - CMD_READ_DATA = 7, -}; - -struct sr_usb_dev_inst; - -SR_PRIV int sla5032_apply_fpga_config(const struct sr_dev_inst* sdi); -SR_PRIV int sla5032_start_sample(const struct sr_usb_dev_inst *usb); -SR_PRIV int sla5032_get_status(const struct sr_usb_dev_inst *usb, uint32_t status[3]); -SR_PRIV int sla5032_set_read_back(const struct sr_usb_dev_inst *usb); -SR_PRIV int sla5032_read_data_chunk(const struct sr_usb_dev_inst *usb, void *buf, unsigned int len, int *xfer_len); -SR_PRIV int sla5032_set_depth(const struct sr_usb_dev_inst *usb, uint32_t pre, uint32_t post); -SR_PRIV int sla5032_set_triggers(const struct sr_usb_dev_inst *usb, uint32_t trg_value, uint32_t trg_edge_mask, uint32_t trg_mask); -SR_PRIV int sla5032_set_samplerate(const struct sr_usb_dev_inst *usb, unsigned int sr); -SR_PRIV int sla5032_set_pwm1(const struct sr_usb_dev_inst *usb, uint32_t hi, uint32_t lo); -SR_PRIV int sla5032_set_pwm2(const struct sr_usb_dev_inst* usb, uint32_t hi, uint32_t lo); -SR_PRIV int sla5032_write_reg14_zero(const struct sr_usb_dev_inst* usb); - -#endif