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https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
synced 2024-08-27 19:29:37 +00:00
Input: sentelic - refactor code for upcoming new hardware support
- Move event bits setup code into a separate function, fsp_set_input_params(), so that we can perform hardware-specific settings in the future; - Take hardware version information into account when activating protocol; - Remove button information from boot message as it's somewhat confusing and is only for internal processing. While there, also move button retrieval code to be a part of protocol activation process. Signed-off-by: Tai-hwa Liang <avatar@sentelic.com> Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
This commit is contained in:
parent
d8ee4a1c90
commit
3ac1780f9e
2 changed files with 96 additions and 64 deletions
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@ -128,8 +128,9 @@ static int fsp_reg_read(struct psmouse *psmouse, int reg_addr, int *reg_val)
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out:
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ps2_end_command(ps2dev);
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psmouse_activate(psmouse);
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dev_dbg(&ps2dev->serio->dev, "READ REG: 0x%02x is 0x%02x (rc = %d)\n",
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reg_addr, *reg_val, rc);
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psmouse_dbg(psmouse,
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"READ REG: 0x%02x is 0x%02x (rc = %d)\n",
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reg_addr, *reg_val, rc);
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return rc;
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}
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@ -179,8 +180,9 @@ static int fsp_reg_write(struct psmouse *psmouse, int reg_addr, int reg_val)
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out:
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ps2_end_command(ps2dev);
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dev_dbg(&ps2dev->serio->dev, "WRITE REG: 0x%02x to 0x%02x (rc = %d)\n",
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reg_addr, reg_val, rc);
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psmouse_dbg(psmouse,
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"WRITE REG: 0x%02x to 0x%02x (rc = %d)\n",
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reg_addr, reg_val, rc);
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return rc;
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}
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@ -237,8 +239,9 @@ static int fsp_page_reg_read(struct psmouse *psmouse, int *reg_val)
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out:
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ps2_end_command(ps2dev);
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psmouse_activate(psmouse);
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dev_dbg(&ps2dev->serio->dev, "READ PAGE REG: 0x%02x (rc = %d)\n",
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*reg_val, rc);
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psmouse_dbg(psmouse,
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"READ PAGE REG: 0x%02x (rc = %d)\n",
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*reg_val, rc);
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return rc;
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}
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@ -274,8 +277,9 @@ static int fsp_page_reg_write(struct psmouse *psmouse, int reg_val)
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out:
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ps2_end_command(ps2dev);
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dev_dbg(&ps2dev->serio->dev, "WRITE PAGE REG: to 0x%02x (rc = %d)\n",
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reg_val, rc);
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psmouse_dbg(psmouse,
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"WRITE PAGE REG: to 0x%02x (rc = %d)\n",
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reg_val, rc);
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return rc;
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}
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@ -319,7 +323,7 @@ static int fsp_opc_tag_enable(struct psmouse *psmouse, bool enable)
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int res = 0;
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if (fsp_reg_read(psmouse, FSP_REG_OPC_QDOWN, &v) == -1) {
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dev_err(&psmouse->ps2dev.serio->dev, "Unable get OPC state.\n");
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psmouse_err(psmouse, "Unable get OPC state.\n");
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return -EIO;
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}
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@ -336,8 +340,7 @@ static int fsp_opc_tag_enable(struct psmouse *psmouse, bool enable)
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}
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if (res != 0) {
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dev_err(&psmouse->ps2dev.serio->dev,
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"Unable to enable OPC tag.\n");
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psmouse_err(psmouse, "Unable to enable OPC tag.\n");
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res = -EIO;
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}
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@ -657,8 +660,8 @@ static psmouse_ret_t fsp_process_byte(struct psmouse *psmouse)
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switch (psmouse->packet[0] >> FSP_PKT_TYPE_SHIFT) {
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case FSP_PKT_TYPE_ABS:
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dev_warn(&psmouse->ps2dev.serio->dev,
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"Unexpected absolute mode packet, ignored.\n");
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psmouse_warn(psmouse,
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"Unexpected absolute mode packet, ignored.\n");
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break;
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case FSP_PKT_TYPE_NORMAL_OPC:
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@ -736,43 +739,70 @@ static int fsp_activate_protocol(struct psmouse *psmouse)
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ps2_command(ps2dev, param, PSMOUSE_CMD_GETID);
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if (param[0] != 0x04) {
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dev_err(&psmouse->ps2dev.serio->dev,
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"Unable to enable 4 bytes packet format.\n");
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psmouse_err(psmouse,
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"Unable to enable 4 bytes packet format.\n");
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return -EIO;
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}
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if (fsp_reg_read(psmouse, FSP_REG_SYSCTL5, &val)) {
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dev_err(&psmouse->ps2dev.serio->dev,
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"Unable to read SYSCTL5 register.\n");
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return -EIO;
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if (pad->ver < FSP_VER_STL3888_C0) {
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/* Preparing relative coordinates output for older hardware */
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if (fsp_reg_read(psmouse, FSP_REG_SYSCTL5, &val)) {
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psmouse_err(psmouse,
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"Unable to read SYSCTL5 register.\n");
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return -EIO;
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}
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if (fsp_get_buttons(psmouse, &pad->buttons)) {
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psmouse_err(psmouse,
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"Unable to retrieve number of buttons.\n");
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return -EIO;
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}
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val &= ~(FSP_BIT_EN_MSID7 | FSP_BIT_EN_MSID8 | FSP_BIT_EN_AUTO_MSID8);
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/* Ensure we are not in absolute mode */
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val &= ~FSP_BIT_EN_PKT_G0;
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if (pad->buttons == 0x06) {
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/* Left/Middle/Right & Scroll Up/Down/Right/Left */
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val |= FSP_BIT_EN_MSID6;
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}
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if (fsp_reg_write(psmouse, FSP_REG_SYSCTL5, val)) {
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psmouse_err(psmouse,
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"Unable to set up required mode bits.\n");
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return -EIO;
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}
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/*
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* Enable OPC tags such that driver can tell the difference
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* between on-pad and real button click
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*/
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if (fsp_opc_tag_enable(psmouse, true))
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psmouse_warn(psmouse,
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"Failed to enable OPC tag mode.\n");
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/* enable on-pad click by default */
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pad->flags |= FSPDRV_FLAG_EN_OPC;
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/* Enable on-pad vertical and horizontal scrolling */
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fsp_onpad_vscr(psmouse, true);
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fsp_onpad_hscr(psmouse, true);
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}
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val &= ~(FSP_BIT_EN_MSID7 | FSP_BIT_EN_MSID8 | FSP_BIT_EN_AUTO_MSID8);
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/* Ensure we are not in absolute mode */
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val &= ~FSP_BIT_EN_PKT_G0;
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if (pad->buttons == 0x06) {
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/* Left/Middle/Right & Scroll Up/Down/Right/Left */
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val |= FSP_BIT_EN_MSID6;
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return 0;
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}
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static int fsp_set_input_params(struct psmouse *psmouse)
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{
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struct input_dev *dev = psmouse->dev;
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struct fsp_data *pad = psmouse->private;
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if (pad->ver < FSP_VER_STL3888_C0) {
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__set_bit(BTN_MIDDLE, dev->keybit);
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__set_bit(BTN_BACK, dev->keybit);
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__set_bit(BTN_FORWARD, dev->keybit);
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__set_bit(REL_WHEEL, dev->relbit);
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__set_bit(REL_HWHEEL, dev->relbit);
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}
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if (fsp_reg_write(psmouse, FSP_REG_SYSCTL5, val)) {
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dev_err(&psmouse->ps2dev.serio->dev,
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"Unable to set up required mode bits.\n");
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return -EIO;
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}
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/*
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* Enable OPC tags such that driver can tell the difference between
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* on-pad and real button click
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*/
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if (fsp_opc_tag_enable(psmouse, true))
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dev_warn(&psmouse->ps2dev.serio->dev,
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"Failed to enable OPC tag mode.\n");
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/* Enable on-pad vertical and horizontal scrolling */
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fsp_onpad_vscr(psmouse, true);
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fsp_onpad_hscr(psmouse, true);
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return 0;
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}
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@ -829,18 +859,16 @@ static int fsp_reconnect(struct psmouse *psmouse)
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int fsp_init(struct psmouse *psmouse)
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{
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struct fsp_data *priv;
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int ver, rev, buttons;
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int ver, rev;
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int error;
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if (fsp_get_version(psmouse, &ver) ||
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fsp_get_revision(psmouse, &rev) ||
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fsp_get_buttons(psmouse, &buttons)) {
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fsp_get_revision(psmouse, &rev)) {
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return -ENODEV;
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}
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psmouse_info(psmouse,
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"Finger Sensing Pad, hw: %d.%d.%d, sw: %s, buttons: %d\n",
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ver >> 4, ver & 0x0F, rev, fsp_drv_ver, buttons & 7);
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psmouse_info(psmouse, "Finger Sensing Pad, hw: %d.%d.%d, sw: %s\n",
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ver >> 4, ver & 0x0F, rev, fsp_drv_ver);
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psmouse->private = priv = kzalloc(sizeof(struct fsp_data), GFP_KERNEL);
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if (!priv)
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@ -848,17 +876,6 @@ int fsp_init(struct psmouse *psmouse)
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priv->ver = ver;
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priv->rev = rev;
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priv->buttons = buttons;
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/* enable on-pad click by default */
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priv->flags |= FSPDRV_FLAG_EN_OPC;
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/* Set up various supported input event bits */
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__set_bit(BTN_MIDDLE, psmouse->dev->keybit);
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__set_bit(BTN_BACK, psmouse->dev->keybit);
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__set_bit(BTN_FORWARD, psmouse->dev->keybit);
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__set_bit(REL_WHEEL, psmouse->dev->relbit);
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__set_bit(REL_HWHEEL, psmouse->dev->relbit);
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psmouse->protocol_handler = fsp_process_byte;
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psmouse->disconnect = fsp_disconnect;
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@ -866,16 +883,20 @@ int fsp_init(struct psmouse *psmouse)
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psmouse->cleanup = fsp_reset;
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psmouse->pktsize = 4;
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/* set default packet output based on number of buttons we found */
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error = fsp_activate_protocol(psmouse);
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if (error)
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goto err_out;
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/* Set up various supported input event bits */
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error = fsp_set_input_params(psmouse);
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if (error)
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goto err_out;
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error = sysfs_create_group(&psmouse->ps2dev.serio->dev.kobj,
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&fsp_attribute_group);
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if (error) {
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dev_err(&psmouse->ps2dev.serio->dev,
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"Failed to create sysfs attributes (%d)", error);
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psmouse_err(psmouse,
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"Failed to create sysfs attributes (%d)", error);
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goto err_out;
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}
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@ -64,12 +64,23 @@
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#define FSP_PKT_TYPE_NORMAL_OPC (0x03)
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#define FSP_PKT_TYPE_SHIFT (6)
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/* hardware revisions */
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#define FSP_VER_STL3888_A4 (0xC1)
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#define FSP_VER_STL3888_B0 (0xD0)
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#define FSP_VER_STL3888_B1 (0xD1)
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#define FSP_VER_STL3888_B2 (0xD2)
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#define FSP_VER_STL3888_C0 (0xE0)
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#define FSP_VER_STL3888_C1 (0xE1)
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#define FSP_VER_STL3888_D0 (0xE2)
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#define FSP_VER_STL3888_D1 (0xE3)
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#define FSP_VER_STL3888_E0 (0xE4)
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#ifdef __KERNEL__
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struct fsp_data {
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unsigned char ver; /* hardware version */
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unsigned char rev; /* hardware revison */
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unsigned char buttons; /* Number of buttons */
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unsigned int buttons; /* Number of buttons */
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unsigned int flags;
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#define FSPDRV_FLAG_EN_OPC (0x001) /* enable on-pad clicking */
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