diff options
Diffstat (limited to 'ft2232_spi.c')
| -rw-r--r-- | ft2232_spi.c | 28 |
1 files changed, 14 insertions, 14 deletions
diff --git a/ft2232_spi.c b/ft2232_spi.c index 97794b5a..3757a244 100644 --- a/ft2232_spi.c +++ b/ft2232_spi.c @@ -86,7 +86,7 @@ static const struct dev_entry devs_ft2232spi[] = { #define BITMODE_BITBANG_NORMAL 1 #define BITMODE_BITBANG_SPI 2 -/* The variables pinlvl and pindir store the values for the "set data bits low byte" MPSSE command that +/* The variables cs_bits and pindir store the values for the "set data bits low byte" MPSSE command that * sets the initial state and the direction of the I/O pins. The pin offsets are as follows: * TCK/SK is bit 0. * TDI/DO is bit 1. @@ -105,7 +105,7 @@ static const struct dev_entry devs_ft2232spi[] = { * dir: 0x0b CS=output, DI=input, DO=output, SK=output */ struct ft2232_data { - uint8_t pinlvl; + uint8_t cs_bits; uint8_t pindir; struct ftdi_context ftdic_context; }; @@ -226,7 +226,7 @@ static int ft2232_spi_send_multicommand(const struct flashctx *flash, struct spi msg_pspew("Assert CS#\n"); buf[i++] = SET_BITS_LOW; - buf[i++] = ~ 0x08 & spi_data->pinlvl; /* assert CS (3rd) bit only */ + buf[i++] = ~ 0x08 & spi_data->cs_bits; /* assert CS (3rd) bit only */ buf[i++] = spi_data->pindir; /* WREN, OP(PROGRAM, ERASE), ADDR, DATA */ @@ -248,7 +248,7 @@ static int ft2232_spi_send_multicommand(const struct flashctx *flash, struct spi /* Add final de-assert CS# */ msg_pspew("De-assert CS#\n"); buf[i++] = SET_BITS_LOW; - buf[i++] = spi_data->pinlvl; + buf[i++] = spi_data->cs_bits; buf[i++] = spi_data->pindir; /* continue if there is no read-cmd and further cmds exist */ @@ -316,7 +316,7 @@ static int ft2232_spi_init(void) char *arg; double mpsse_clk; - uint8_t pinlvl = 0x08; + uint8_t cs_bits = 0x08; uint8_t pindir = 0x0b; struct ftdi_context ftdic; struct ft2232_data *spi_data; @@ -338,7 +338,7 @@ static int ft2232_spi_init(void) /* JTAGkey(2) needs to enable its output via Bit4 / GPIOL0 * value: 0x18 OE=high, CS=high, DI=low, DO=low, SK=low * dir: 0x1b OE=output, CS=output, DI=input, DO=output, SK=output */ - pinlvl = 0x18; + cs_bits = 0x18; pindir = 0x1b; } else if (!strcasecmp(arg, "picotap")) { ft2232_vid = GOEPEL_VID; @@ -356,7 +356,7 @@ static int ft2232_spi_init(void) /* In its default configuration it is a jtagkey clone */ ft2232_type = FTDI_FT2232H_PID; channel_count = 2; - pinlvl = 0x18; + cs_bits = 0x18; pindir = 0x1b; } else if (!strcasecmp(arg, "openmoko")) { ft2232_vid = FIC_VID; @@ -369,7 +369,7 @@ static int ft2232_spi_init(void) /* arm-usb-ocd(-h) has an output buffer that needs to be enabled by pulling ADBUS4 low. * value: 0x08 #OE=low, CS=high, DI=low, DO=low, SK=low * dir: 0x1b #OE=output, CS=output, DI=input, DO=output, SK=output */ - pinlvl = 0x08; + cs_bits = 0x08; pindir = 0x1b; } else if (!strcasecmp(arg, "arm-usb-tiny")) { ft2232_vid = OLIMEX_VID; @@ -380,7 +380,7 @@ static int ft2232_spi_init(void) ft2232_type = OLIMEX_ARM_OCD_H_PID; channel_count = 2; /* See arm-usb-ocd */ - pinlvl = 0x08; + cs_bits = 0x08; pindir = 0x1b; } else if (!strcasecmp(arg, "arm-usb-tiny-h")) { ft2232_vid = OLIMEX_VID; @@ -473,7 +473,7 @@ static int ft2232_spi_init(void) return -2; } else { unsigned int pin = temp + 4; - pinlvl |= 1 << pin; + cs_bits |= 1 << pin; pindir |= 1 << pin; } } @@ -490,11 +490,11 @@ static int ft2232_spi_init(void) unsigned int pin = i + 4; switch (toupper(arg[i])) { case 'H': - pinlvl |= 1 << pin; + cs_bits |= 1 << pin; pindir |= 1 << pin; break; case 'L': - pinlvl &= ~(1 << pin); + cs_bits &= ~(1 << pin); pindir |= 1 << pin; break; case 'Z': @@ -600,7 +600,7 @@ static int ft2232_spi_init(void) msg_pdbg("Set data bits\n"); buf[0] = SET_BITS_LOW; - buf[1] = pinlvl; + buf[1] = cs_bits; buf[2] = pindir; if (send_buf(&ftdic, buf, 3)) { ret = -8; @@ -612,7 +612,7 @@ static int ft2232_spi_init(void) msg_perr("Unable to allocate space for SPI master data\n"); return SPI_GENERIC_ERROR; } - spi_data->pinlvl = pinlvl; + spi_data->cs_bits = cs_bits; spi_data->pindir = pindir; spi_data->ftdic_context = ftdic; |