| cp210x.c (c441bfb5f2866de71e092c1b9d866a65978dfe1a) | cp210x.c (6f7ec77cc8b64ff5037c1945e4650c65c458037d) |
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| 1// SPDX-License-Identifier: GPL-2.0 2/* 3 * Silicon Laboratories CP210x USB to RS232 serial adaptor driver 4 * 5 * Copyright (C) 2005 Craig Shelley (craig@microtron.org.uk) 6 * Copyright (C) 2010-2021 Johan Hovold (johan@kernel.org) 7 * 8 * Support to set flow control line levels using TIOCMGET and TIOCMSET --- 523 unchanged lines hidden (view full) --- 532#define CP2104_GPIO2_RS485_MODE BIT(2) 533 534/* CP2102N configuration array indices */ 535#define CP210X_2NCONFIG_CONFIG_VERSION_IDX 2 536#define CP210X_2NCONFIG_GPIO_MODE_IDX 581 537#define CP210X_2NCONFIG_GPIO_RSTLATCH_IDX 587 538#define CP210X_2NCONFIG_GPIO_CONTROL_IDX 600 539 | 1// SPDX-License-Identifier: GPL-2.0 2/* 3 * Silicon Laboratories CP210x USB to RS232 serial adaptor driver 4 * 5 * Copyright (C) 2005 Craig Shelley (craig@microtron.org.uk) 6 * Copyright (C) 2010-2021 Johan Hovold (johan@kernel.org) 7 * 8 * Support to set flow control line levels using TIOCMGET and TIOCMSET --- 523 unchanged lines hidden (view full) --- 532#define CP2104_GPIO2_RS485_MODE BIT(2) 533 534/* CP2102N configuration array indices */ 535#define CP210X_2NCONFIG_CONFIG_VERSION_IDX 2 536#define CP210X_2NCONFIG_GPIO_MODE_IDX 581 537#define CP210X_2NCONFIG_GPIO_RSTLATCH_IDX 587 538#define CP210X_2NCONFIG_GPIO_CONTROL_IDX 600 539 |
| 540/* CP2102N QFN20 port configuration values */ 541#define CP2102N_QFN20_GPIO2_TXLED_MODE BIT(2) 542#define CP2102N_QFN20_GPIO3_RXLED_MODE BIT(3) 543#define CP2102N_QFN20_GPIO1_RS485_MODE BIT(4) 544#define CP2102N_QFN20_GPIO0_CLK_MODE BIT(6) 545 |
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| 540/* CP210X_VENDOR_SPECIFIC, CP210X_WRITE_LATCH call writes these 0x2 bytes. */ 541struct cp210x_gpio_write { 542 u8 mask; 543 u8 state; 544}; 545 546/* 547 * Helper to get interface number when we only have struct usb_serial. --- 1180 unchanged lines hidden (view full) --- 1728 * the direction of an open-drain pin. 1729 */ 1730 gpio_latch = (gpio_rst_latch >> 3) & 0x0f; 1731 1732 /* 0 indicates open-drain mode, 1 is push-pull */ 1733 priv->gpio_pushpull = (gpio_pushpull >> 3) & 0x0f; 1734 1735 /* 0 indicates GPIO mode, 1 is alternate function */ | 546/* CP210X_VENDOR_SPECIFIC, CP210X_WRITE_LATCH call writes these 0x2 bytes. */ 547struct cp210x_gpio_write { 548 u8 mask; 549 u8 state; 550}; 551 552/* 553 * Helper to get interface number when we only have struct usb_serial. --- 1180 unchanged lines hidden (view full) --- 1734 * the direction of an open-drain pin. 1735 */ 1736 gpio_latch = (gpio_rst_latch >> 3) & 0x0f; 1737 1738 /* 0 indicates open-drain mode, 1 is push-pull */ 1739 priv->gpio_pushpull = (gpio_pushpull >> 3) & 0x0f; 1740 1741 /* 0 indicates GPIO mode, 1 is alternate function */ |
| 1736 priv->gpio_altfunc = (gpio_ctrl >> 2) & 0x0f; | 1742 if (priv->partnum == CP210X_PARTNUM_CP2102N_QFN20) { 1743 /* QFN20 is special... */ 1744 if (gpio_ctrl & CP2102N_QFN20_GPIO0_CLK_MODE) /* GPIO 0 */ 1745 priv->gpio_altfunc |= BIT(0); 1746 if (gpio_ctrl & CP2102N_QFN20_GPIO1_RS485_MODE) /* GPIO 1 */ 1747 priv->gpio_altfunc |= BIT(1); 1748 if (gpio_ctrl & CP2102N_QFN20_GPIO2_TXLED_MODE) /* GPIO 2 */ 1749 priv->gpio_altfunc |= BIT(2); 1750 if (gpio_ctrl & CP2102N_QFN20_GPIO3_RXLED_MODE) /* GPIO 3 */ 1751 priv->gpio_altfunc |= BIT(3); 1752 } else { 1753 priv->gpio_altfunc = (gpio_ctrl >> 2) & 0x0f; 1754 } |
| 1737 1738 if (priv->partnum == CP210X_PARTNUM_CP2102N_QFN28) { 1739 /* 1740 * For the QFN28 package, GPIO4-6 are controlled by 1741 * the low three bits of the mode/latch fields. 1742 * Contrary to the document linked above, the bits for 1743 * the SUSPEND pins are elsewhere. No alternate 1744 * function is available for these pins. --- 215 unchanged lines hidden --- | 1755 1756 if (priv->partnum == CP210X_PARTNUM_CP2102N_QFN28) { 1757 /* 1758 * For the QFN28 package, GPIO4-6 are controlled by 1759 * the low three bits of the mode/latch fields. 1760 * Contrary to the document linked above, the bits for 1761 * the SUSPEND pins are elsewhere. No alternate 1762 * function is available for these pins. --- 215 unchanged lines hidden --- |