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https://github.com/gdsports/USBHost_t36
synced 2024-11-21 08:35:03 -05:00
Support for Silicon labs: CP210x
Did a quick add of support for the Slicon Labs CP210x drivers. Did similar like messages as FTDI, based on their documents on line: https://www.silabs.com/documents/public/application-notes/AN571.pdf
This commit is contained in:
Kurt Eckhardt
parent
12be685ab1
commit
ec4a7ac24c
@ -943,7 +943,7 @@ private:
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USBDriverTimer txtimer;
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uint32_t bigbuffer[(BUFFER_SIZE+3)/4];
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setup_t setup;
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uint8_t setupdata[8];
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uint8_t setupdata[16]; //
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uint32_t baudrate;
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uint32_t format_;
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Pipe_t *rxpipe;
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@ -968,7 +968,7 @@ private:
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uint8_t pl2303_v2;
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uint8_t interface;
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bool control_queued;
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typedef enum { UNKNOWN=0, CDCACM, FTDI, PL2303, CH341 } sertype_t;
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typedef enum { UNKNOWN=0, CDCACM, FTDI, PL2303, CH341, CP210X } sertype_t;
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sertype_t sertype;
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typedef struct {
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132
serial.cpp
132
serial.cpp
@ -42,7 +42,10 @@ USBSerial::product_vendor_mapping_t USBSerial::pid_vid_mapping[] = {
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// CH341
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{0x4348, 0x5523, USBSerial::CH341 },
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{0x1a86, 0x7523, USBSerial::CH341 },
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{0x1a86, 0x5523, USBSerial::CH341 }
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{0x1a86, 0x5523, USBSerial::CH341 },
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// Silex CP210...
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{0x10c4, 0xea60, USBSerial::CP210X }
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};
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@ -307,6 +310,7 @@ bool USBSerial::claim(Device_t *dev, int type, const uint8_t *descriptors, uint3
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txpipe->callback_function = tx_callback;
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baudrate = 115200;
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// First attempt keep it simple...
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println("PL2303: readRegister(0x04)");
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// Need to setup the data the line coding data
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mk_setup(setup, 0xC0, 0x1, 0x8484, 0, 1);
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@ -381,6 +385,71 @@ bool USBSerial::claim(Device_t *dev, int type, const uint8_t *descriptors, uint3
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return true;
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}
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//------------------------------------------------------------------------
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// CP210X
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case CP210X:
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{
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println("len = ", len);
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uint8_t count_end_points = descriptors[4];
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if (count_end_points < 2) return false; // not enough end points
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if (len < 23) return false;
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if (descriptors[0] != 9) return false; // length 9
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// Lets walk through end points and see if we
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// can find an RX and TX bulk transfer end point.
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// BUGBUG: should factor out this code as duplicated...
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// vid=10C4, pid=EA60, bDeviceClass = 0, bDeviceSubClass = 0, bDeviceProtocol = 0
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// 0 1 2 3 4 5 6 7 8 9 10 1 2 3 4 5 6 7 8 9 20 1 2 3 4 5 6 7 8 9
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//09 04 00 00 02 FF 00 00 02 07 05 81 02 40 00 00 07 05 01 02 40 00 00
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uint32_t rxep = 0;
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uint32_t txep = 0;
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uint32_t descriptor_index = 9;
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while (count_end_points-- && ((rxep == 0) || txep == 0)) {
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if (descriptors[descriptor_index] != 7) return false; // length 7
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if (descriptors[descriptor_index+1] != 5) return false; // ep desc
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if ((descriptors[descriptor_index+3] == 2)
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&& (descriptors[descriptor_index+4] <= 64)
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&& (descriptors[descriptor_index+5] == 0)) {
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// have a bulk EP size
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if (descriptors[descriptor_index+2] & 0x80 ) {
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rxep = descriptors[descriptor_index+2];
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rxsize = descriptors[descriptor_index+4];
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} else {
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txep = descriptors[descriptor_index+2];
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txsize = descriptors[descriptor_index+4];
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}
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}
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descriptor_index += 7; // setup to look at next one...
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}
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// Try to verify the end points.
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if (!check_rxtx_ep(rxep, txep)) return false;
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print("CP210X, rxep=", rxep & 15);
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println(", txep=", txep);
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if (!init_buffers(rxsize, txsize)) return false;
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rxpipe = new_Pipe(dev, 2, rxep & 15, 1, rxsize);
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if (!rxpipe) return false;
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txpipe = new_Pipe(dev, 2, txep, 0, txsize);
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if (!txpipe) {
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// TODO: free rxpipe
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return false;
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}
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rxpipe->callback_function = rx_callback;
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queue_Data_Transfer(rxpipe, rx1, rxsize, this);
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rxstate = 1;
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txstate = 0;
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txpipe->callback_function = tx_callback;
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baudrate = 115200;
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println("CP210X: 0x41, 0x11, 0, 0, 0 - reset port");
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// Need to setup the data the line coding data
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mk_setup(setup, 0x41, 0x11, 0, 0, 0);
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queue_Control_Transfer(dev, &setup, NULL, this);
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control_queued = true;
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setup_state = 1; // We are at step one of setup...
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pending_control = 0xf;
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return true;
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}
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//------------------------------------------------------------------------
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// PID:VID - not in our product list.
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default:
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return false;
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@ -917,6 +986,66 @@ void USBSerial::control(const Transfer_t *transfer)
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return;
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}
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}
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//-------------------------------------------------------------------------
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// First CP210X
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if (sertype == CP210X) {
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if (pending_control & 1) {
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pending_control &= ~1;
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// set data format
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uint16_t cp210x_format = (format_ & 0xf) << 8; // This should give us the number of bits.
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// now lets extract the parity from our encoding bits 5-7 and in theres 4-7
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cp210x_format |= (format_ & 0xe0) >> 1; // they encode bits 9-11
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// See if two stop bits
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if (format_ & 0x100) cp210x_format |= 2;
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mk_setup(setup, 0x41, 3, cp210x_format, 0, 0); // data format 8N1
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queue_Control_Transfer(device, &setup, NULL, this);
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control_queued = true;
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return;
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}
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// set baud rate
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if (pending_control & 2) {
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pending_control &= ~2;
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setupdata[0] = (baudrate) & 0xff; // Setup baud rate 115200 - 0x1C200
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setupdata[1] = (baudrate >> 8) & 0xff;
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setupdata[2] = (baudrate >> 16) & 0xff;
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setupdata[3] = (baudrate >> 24) & 0xff;
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mk_setup(setup, 0x40, 0x1e, 0, 0, 4);
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queue_Control_Transfer(device, &setup, setupdata, this);
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control_queued = true;
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return;
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}
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// configure flow control
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if (pending_control & 4) {
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pending_control &= ~4;
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memset(setupdata, 0, sizeof(setupdata)); // clear out the data
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setupdata[0] = 1; // Set dtr active?
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mk_setup(setup, 0x41, 13, 0, 0, 0x10);
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queue_Control_Transfer(device, &setup, setupdata, this);
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control_queued = true;
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return;
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}
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// set DTR
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if (pending_control & 8) {
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pending_control &= ~8;
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mk_setup(setup, 0x41, 7, 0x0101, 0, 0);
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queue_Control_Transfer(device, &setup, NULL, this);
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control_queued = true;
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return;
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}
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// clear DTR
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if (pending_control & 0x80) {
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pending_control &= ~0x80;
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println("CP210x clear DTR");
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mk_setup(setup, 0x40, 1, 0x0100, 0, 0);
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queue_Control_Transfer(device, &setup, NULL, this);
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control_queued = true;
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return;
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}
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}
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}
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#define CH341_BAUDBASE_FACTOR 1532620800
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@ -1170,6 +1299,7 @@ void USBSerial::begin(uint32_t baud, uint32_t format)
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case FTDI: pending_control |= (format_changed? 0xf : 0xe); break; // Set BAUD, FLOW, DTR
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case PL2303: pending_control |= 0x1e; break; // set more stuff...
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case CH341: pending_control |= 0x1e; break;
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case CP210X: pending_control |= 0xf; break;
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}
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if (!control_queued) control(NULL);
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NVIC_ENABLE_IRQ(IRQ_USBHS);
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